* [musl] add loongarch64 port v4
@ 2022-06-08 3:56 王洪亮
2022-06-14 7:23 ` [musl] " 王洪亮
0 siblings, 1 reply; 7+ messages in thread
From: 王洪亮 @ 2022-06-08 3:56 UTC (permalink / raw)
To: musl
[-- Attachment #1: Type: text/plain, Size: 597 bytes --]
Hi,
I published loongarch64 port v4 in
https://github.com/loongson/musl/tree/loongarch-v2.0.
fixed the following problems:
1.fixed the extension field of struct mcontext
2.removed arch/loongarch64/kstat.h
3.deleted the incorrect definition in arch/loongarch64/reloc.h
4.optimize dlsym
please code review if there are any other problems ? thanks.
I have one questions:
Through add "long__uc_pad" in struct ucontext_t to meet the
extcontext[] 16 bytes alignment,
if run in loongarch32, this method not meet the 16 bytes alignment
requirement. how to do it ?
Hongliang Wang.
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From 5535c500f137c3cb9ad36c7c96e7aaca440c85bd Mon Sep 17 00:00:00 2001
From: wanghongliang <wanghongliang@loongson.cn>
Date: Wed, 8 Jun 2022 01:42:12 +0800
Subject: [PATCH] add loongarch64 port v4.
Author: xiaojuanZhai <zhaixiaojuan@loongson.cn>
Author: meidanLi <limeidan@loongson.cn>
Author: guoqiChen <chenguoqi@loongson.cn>
Author: xiaolinZhao <zhaoxiaolin@loongson.cn>
Author: Fanpeng <fanpeng@loongson.cn>
Author: jiantaoShan <shanjiantao@loongson.cn>
Author: xuhuiQiang <qiangxuhui@loongson.cn>
Author: jingyunHua <huajingyun@loongson.cn>
Author: liuxue <liuxue@loongson.cn>
Author: wanghongliang <wanghongliang@loongson.cn
Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
---
arch/loongarch64/atomic_arch.h | 53 ++++
arch/loongarch64/bits/alltypes.h.in | 18 ++
arch/loongarch64/bits/fenv.h | 20 ++
arch/loongarch64/bits/float.h | 16 ++
arch/loongarch64/bits/hwcap.h | 14 +
arch/loongarch64/bits/posix.h | 2 +
arch/loongarch64/bits/ptrace.h | 4 +
arch/loongarch64/bits/reg.h | 66 +++++
arch/loongarch64/bits/setjmp.h | 1 +
arch/loongarch64/bits/signal.h | 80 ++++++
arch/loongarch64/bits/stat.h | 18 ++
arch/loongarch64/bits/stdint.h | 20 ++
arch/loongarch64/bits/syscall.h.in | 303 +++++++++++++++++++++
arch/loongarch64/bits/user.h | 5 +
arch/loongarch64/crt_arch.h | 14 +
arch/loongarch64/pthread_arch.h | 13 +
arch/loongarch64/reloc.h | 27 ++
arch/loongarch64/syscall_arch.h | 137 ++++++++++
configure | 1 +
crt/loongarch64/crti.s | 15 +
crt/loongarch64/crtn.s | 12 +
include/elf.h | 66 +++++
src/fenv/loongarch64/fenv.S | 72 +++++
src/ldso/loongarch64/dlsym.s | 7 +
src/setjmp/loongarch64/longjmp.S | 37 +++
src/setjmp/loongarch64/setjmp.S | 34 +++
src/signal/loongarch64/restore.s | 10 +
src/signal/loongarch64/sigsetjmp.s | 29 ++
src/thread/loongarch64/__set_thread_area.s | 7 +
src/thread/loongarch64/__unmapself.s | 7 +
src/thread/loongarch64/clone.s | 47 ++++
src/thread/loongarch64/syscall_cp.s | 29 ++
32 files changed, 1184 insertions(+)
create mode 100644 arch/loongarch64/atomic_arch.h
create mode 100644 arch/loongarch64/bits/alltypes.h.in
create mode 100644 arch/loongarch64/bits/fenv.h
create mode 100644 arch/loongarch64/bits/float.h
create mode 100644 arch/loongarch64/bits/hwcap.h
create mode 100644 arch/loongarch64/bits/posix.h
create mode 100644 arch/loongarch64/bits/ptrace.h
create mode 100644 arch/loongarch64/bits/reg.h
create mode 100644 arch/loongarch64/bits/setjmp.h
create mode 100644 arch/loongarch64/bits/signal.h
create mode 100644 arch/loongarch64/bits/stat.h
create mode 100644 arch/loongarch64/bits/stdint.h
create mode 100644 arch/loongarch64/bits/syscall.h.in
create mode 100644 arch/loongarch64/bits/user.h
create mode 100644 arch/loongarch64/crt_arch.h
create mode 100644 arch/loongarch64/pthread_arch.h
create mode 100644 arch/loongarch64/reloc.h
create mode 100644 arch/loongarch64/syscall_arch.h
create mode 100644 crt/loongarch64/crti.s
create mode 100644 crt/loongarch64/crtn.s
create mode 100644 src/fenv/loongarch64/fenv.S
create mode 100644 src/ldso/loongarch64/dlsym.s
create mode 100644 src/setjmp/loongarch64/longjmp.S
create mode 100644 src/setjmp/loongarch64/setjmp.S
create mode 100644 src/signal/loongarch64/restore.s
create mode 100644 src/signal/loongarch64/sigsetjmp.s
create mode 100644 src/thread/loongarch64/__set_thread_area.s
create mode 100644 src/thread/loongarch64/__unmapself.s
create mode 100644 src/thread/loongarch64/clone.s
create mode 100644 src/thread/loongarch64/syscall_cp.s
diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
new file mode 100644
index 00000000..bf4805c9
--- /dev/null
+++ b/arch/loongarch64/atomic_arch.h
@@ -0,0 +1,53 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+ int v;
+ __asm__ __volatile__ (
+ "ll.w %0, %1"
+ : "=r"(v)
+ : "ZC"(*p));
+ return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+ int r;
+ __asm__ __volatile__ (
+ "sc.w %0, %1"
+ : "=r"(r), "=ZC"(*p)
+ : "0"(v) : "memory");
+ return r;
+}
+
+#define a_ll_p a_ll_p
+static inline void *a_ll_p(volatile void *p)
+{
+ void *v;
+ __asm__ __volatile__ (
+ "ll.d %0, %1"
+ : "=r"(v)
+ : "ZC"(*(void *volatile *)p));
+ return v;
+}
+
+#define a_sc_p a_sc_p
+static inline int a_sc_p(volatile void *p, void *v)
+{
+ long r;
+ __asm__ __volatile__ (
+ "sc.d %0, %1"
+ : "=r"(r), "=ZC"(*(void *volatile *)p)
+ : "0"(v)
+ : "memory");
+ return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+ __asm__ __volatile__ ("dbar 0" : : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
new file mode 100644
index 00000000..d1807aca
--- /dev/null
+++ b/arch/loongarch64/bits/alltypes.h.in
@@ -0,0 +1,18 @@
+#define _Addr long
+#define _Int64 long
+#define _Reg long
+
+#define __BYTE_ORDER 1234
+#define __LONG_MAX 0x7fffffffffffffffL
+
+#ifndef __cplusplus
+TYPEDEF int wchar_t;
+#endif
+
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+
+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
+
+TYPEDEF unsigned nlink_t;
+TYPEDEF int blksize_t;
diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
new file mode 100644
index 00000000..264cafb5
--- /dev/null
+++ b/arch/loongarch64/bits/fenv.h
@@ -0,0 +1,20 @@
+#define FE_INEXACT 0x010000
+#define FE_UNDERFLOW 0x020000
+#define FE_OVERFLOW 0x040000
+#define FE_DIVBYZERO 0x080000
+#define FE_INVALID 0x100000
+
+#define FE_ALL_EXCEPT 0x1F0000
+
+#define FE_TONEAREST 0x000
+#define FE_TOWARDZERO 0x100
+#define FE_UPWARD 0x200
+#define FE_DOWNWARD 0x300
+
+typedef unsigned fexcept_t;
+
+typedef struct {
+ unsigned __cw;
+} fenv_t;
+
+#define FE_DFL_ENV ((const fenv_t *) -1)
diff --git a/arch/loongarch64/bits/float.h b/arch/loongarch64/bits/float.h
new file mode 100644
index 00000000..719c7908
--- /dev/null
+++ b/arch/loongarch64/bits/float.h
@@ -0,0 +1,16 @@
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
+#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
+#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
+#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
+
+#define LDBL_MANT_DIG 113
+#define LDBL_MIN_EXP (-16381)
+#define LDBL_MAX_EXP 16384
+
+#define LDBL_DIG 33
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_10_EXP 4932
+
+#define DECIMAL_DIG 36
diff --git a/arch/loongarch64/bits/hwcap.h b/arch/loongarch64/bits/hwcap.h
new file mode 100644
index 00000000..c9fa08f6
--- /dev/null
+++ b/arch/loongarch64/bits/hwcap.h
@@ -0,0 +1,14 @@
+/* HWCAP - Hardware Capabilities.
+ * Hardware information is not clear at present, leave it blank.
+ */
+#define HWCAP_LOONGARCH_CPUCFG (1 << 0)
+#define HWCAP_LOONGARCH_FPU (1 << 1)
+#define HWCAP_LOONGARCH_LSX (1 << 2) /* support 128bit vectors*/
+#define HWCAP_LOONGARCH_LASX (1 << 3) /* support 256bit vectors*/
+#define HWCAP_LOONGARCH_LBT (1 << 4) /* support LBT*/
+#define HWCAP_LOONGARCH_LVZ (1 << 5) /* support virtualization expansion*/
+#define HWCAP_LOONGARCH_CRC32 (1 << 7) /* support CRC32 check*/
+#define HWCAP_LOONGARCH_AES (1 << 6)
+#define HWCAP_LOONGARCH_SHA1 (1 << 8)
+#define HWCAP_LOONGARCH_SHA2 (1 << 9)
+#define HWCAP_LOONGARCH_SHA3 (1 << 10)
diff --git a/arch/loongarch64/bits/posix.h b/arch/loongarch64/bits/posix.h
new file mode 100644
index 00000000..8068ce98
--- /dev/null
+++ b/arch/loongarch64/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_LP64_OFF64 1
+#define _POSIX_V7_LP64_OFF64 1
diff --git a/arch/loongarch64/bits/ptrace.h b/arch/loongarch64/bits/ptrace.h
new file mode 100644
index 00000000..741fc668
--- /dev/null
+++ b/arch/loongarch64/bits/ptrace.h
@@ -0,0 +1,4 @@
+#define PTRACE_GET_THREAD_AREA 25
+#define PTRACE_SET_THREAD_AREA 26
+#define PTRACE_GET_WATCH_REGS 0xd0
+#define PTRACE_SET_WATCH_REGS 0xd1
diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
new file mode 100644
index 00000000..5d3f92c5
--- /dev/null
+++ b/arch/loongarch64/bits/reg.h
@@ -0,0 +1,66 @@
+#undef __WORDSIZE
+#define __WORDSIZE 64
+#define LOONGARCH64_EF_R0 0
+#define LOONGARCH64_EF_R1 1
+#define LOONGARCH64_EF_R2 2
+#define LOONGARCH64_EF_R3 3
+#define LOONGARCH64_EF_R4 4
+#define LOONGARCH64_EF_R5 5
+#define LOONGARCH64_EF_R6 6
+#define LOONGARCH64_EF_R7 7
+#define LOONGARCH64_EF_R8 8
+#define LOONGARCH64_EF_R9 9
+#define LOONGARCH64_EF_R10 10
+#define LOONGARCH64_EF_R11 11
+#define LOONGARCH64_EF_R12 12
+#define LOONGARCH64_EF_R13 13
+#define LOONGARCH64_EF_R14 14
+#define LOONGARCH64_EF_R15 15
+#define LOONGARCH64_EF_R16 16
+#define LOONGARCH64_EF_R17 17
+#define LOONGARCH64_EF_R18 18
+#define LOONGARCH64_EF_R19 19
+#define LOONGARCH64_EF_R20 20
+#define LOONGARCH64_EF_R21 21
+#define LOONGARCH64_EF_R22 22
+#define LOONGARCH64_EF_R23 23
+#define LOONGARCH64_EF_R24 24
+#define LOONGARCH64_EF_R25 25
+#define LOONGARCH64_EF_R26 26
+#define LOONGARCH64_EF_R27 27
+#define LOONGARCH64_EF_R28 28
+#define LOONGARCH64_EF_R29 29
+#define LOONGARCH64_EF_R30 30
+#define LOONGARCH64_EF_R31 31
+
+#define LOONGARCH64_EF_SIZE 304 /* size in bytes */
+
+#define EF_R0 LOONGARCH64_EF_R0
+#define EF_R1 LOONGARCH64_EF_R1
+#define EF_R2 LOONGARCH64_EF_R2
+#define EF_R3 LOONGARCH64_EF_R3
+#define EF_R4 LOONGARCH64_EF_R4
+#define EF_R5 LOONGARCH64_EF_R5
+#define EF_R6 LOONGARCH64_EF_R6
+#define EF_R7 LOONGARCH64_EF_R7
+#define EF_R8 LOONGARCH64_EF_R8
+#define EF_R9 LOONGARCH64_EF_R9
+#define EF_R10 LOONGARCH64_EF_R10
+#define EF_R11 LOONGARCH64_EF_R11
+#define EF_R12 LOONGARCH64_EF_R12
+#define EF_R13 LOONGARCH64_EF_R13
+#define EF_R14 LOONGARCH64_EF_R14
+#define EF_R15 LOONGARCH64_EF_R15
+#define EF_R16 LOONGARCH64_EF_R16
+#define EF_R17 LOONGARCH64_EF_R17
+#define EF_R18 LOONGARCH64_EF_R18
+#define EF_R19 LOONGARCH64_EF_R19
+#define EF_R20 LOONGARCH64_EF_R20
+#define EF_R21 LOONGARCH64_EF_R21
+#define EF_R22 LOONGARCH64_EF_R22
+#define EF_R23 LOONGARCH64_EF_R23
+#define EF_R24 LOONGARCH64_EF_R24
+#define EF_R25 LOONGARCH64_EF_R25
+#define EF_R26 LOONGARCH64_EF_R26
+#define EF_R27 LOONGARCH64_EF_R27
+#define EF_R28 LOONGARCH64_EF_R28
diff --git a/arch/loongarch64/bits/setjmp.h b/arch/loongarch64/bits/setjmp.h
new file mode 100644
index 00000000..f4a7f8a3
--- /dev/null
+++ b/arch/loongarch64/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long long __jmp_buf[22];
diff --git a/arch/loongarch64/bits/signal.h b/arch/loongarch64/bits/signal.h
new file mode 100644
index 00000000..4db790e7
--- /dev/null
+++ b/arch/loongarch64/bits/signal.h
@@ -0,0 +1,80 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MINSIGSTKSZ 4096
+#define SIGSTKSZ 16384
+#endif
+
+typedef unsigned long greg_t, gregset_t[32];
+
+typedef struct sigcontext {
+ unsigned long pc;
+ gregset_t gregs;
+ unsigned int flags;
+ unsigned long extcontext[];
+} mcontext_t;
+
+struct sigaltstack {
+ void *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+};
+
+typedef struct __ucontext
+{
+ unsigned long uc_flags;
+ struct __ucontext *uc_link;
+ stack_t uc_stack;
+ sigset_t uc_sigmask;
+ long __uc_pad;
+ mcontext_t uc_mcontext;
+} ucontext_t;
+
+#define SA_NOCLDSTOP 1
+#define SA_NOCLDWAIT 2
+#define SA_SIGINFO 4
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+#define SA_RESTORER 0x04000000
+
+#endif
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT SIGABRT
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 65
diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
new file mode 100644
index 00000000..b7f4221b
--- /dev/null
+++ b/arch/loongarch64/bits/stat.h
@@ -0,0 +1,18 @@
+struct stat {
+ dev_t st_dev;
+ ino_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ dev_t st_rdev;
+ unsigned long __pad;
+ off_t st_size;
+ blksize_t st_blksize;
+ int __pad2;
+ blkcnt_t st_blocks;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned __unused[2];
+};
diff --git a/arch/loongarch64/bits/stdint.h b/arch/loongarch64/bits/stdint.h
new file mode 100644
index 00000000..1bb147f2
--- /dev/null
+++ b/arch/loongarch64/bits/stdint.h
@@ -0,0 +1,20 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST32_MIN INT32_MIN
+
+#define INT_FAST16_MAX INT32_MAX
+#define INT_FAST32_MAX INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INTPTR_MIN INT64_MIN
+#define INTPTR_MAX INT64_MAX
+#define UINTPTR_MAX UINT64_MAX
+#define PTRDIFF_MIN INT64_MIN
+#define PTRDIFF_MAX INT64_MAX
+#define SIZE_MAX UINT64_MAX
diff --git a/arch/loongarch64/bits/syscall.h.in b/arch/loongarch64/bits/syscall.h.in
new file mode 100644
index 00000000..689ff36b
--- /dev/null
+++ b/arch/loongarch64/bits/syscall.h.in
@@ -0,0 +1,303 @@
+#define __NR_io_setup 0
+#define __NR_io_destroy 1
+#define __NR_io_submit 2
+#define __NR_io_cancel 3
+#define __NR_io_getevents 4
+#define __NR_setxattr 5
+#define __NR_lsetxattr 6
+#define __NR_fsetxattr 7
+#define __NR_getxattr 8
+#define __NR_lgetxattr 9
+#define __NR_fgetxattr 10
+#define __NR_listxattr 11
+#define __NR_llistxattr 12
+#define __NR_flistxattr 13
+#define __NR_removexattr 14
+#define __NR_lremovexattr 15
+#define __NR_fremovexattr 16
+#define __NR_getcwd 17
+#define __NR_lookup_dcookie 18
+#define __NR_eventfd2 19
+#define __NR_epoll_create1 20
+#define __NR_epoll_ctl 21
+#define __NR_epoll_pwait 22
+#define __NR_dup 23
+#define __NR_dup3 24
+#define __NR3264_fcntl 25
+#define __NR_inotify_init1 26
+#define __NR_inotify_add_watch 27
+#define __NR_inotify_rm_watch 28
+#define __NR_ioctl 29
+#define __NR_ioprio_set 30
+#define __NR_ioprio_get 31
+#define __NR_flock 32
+#define __NR_mknodat 33
+#define __NR_mkdirat 34
+#define __NR_unlinkat 35
+#define __NR_symlinkat 36
+#define __NR_linkat 37
+#define __NR_umount2 39
+#define __NR_mount 40
+#define __NR_pivot_root 41
+#define __NR_nfsservctl 42
+#define __NR3264_statfs 43
+#define __NR3264_fstatfs 44
+#define __NR3264_truncate 45
+#define __NR3264_ftruncate 46
+#define __NR_fallocate 47
+#define __NR_faccessat 48
+#define __NR_chdir 49
+#define __NR_fchdir 50
+#define __NR_chroot 51
+#define __NR_fchmod 52
+#define __NR_fchmodat 53
+#define __NR_fchownat 54
+#define __NR_fchown 55
+#define __NR_openat 56
+#define __NR_close 57
+#define __NR_vhangup 58
+#define __NR_pipe2 59
+#define __NR_quotactl 60
+#define __NR_getdents64 61
+#define __NR3264_lseek 62
+#define __NR_read 63
+#define __NR_write 64
+#define __NR_readv 65
+#define __NR_writev 66
+#define __NR_pread64 67
+#define __NR_pwrite64 68
+#define __NR_preadv 69
+#define __NR_pwritev 70
+#define __NR3264_sendfile 71
+#define __NR_pselect6 72
+#define __NR_ppoll 73
+#define __NR_signalfd4 74
+#define __NR_vmsplice 75
+#define __NR_splice 76
+#define __NR_tee 77
+#define __NR_readlinkat 78
+#define __NR_sync 81
+#define __NR_fsync 82
+#define __NR_fdatasync 83
+#define __NR_sync_file_range 84
+#define __NR_timerfd_create 85
+#define __NR_timerfd_settime 86
+#define __NR_timerfd_gettime 87
+#define __NR_utimensat 88
+#define __NR_acct 89
+#define __NR_capget 90
+#define __NR_capset 91
+#define __NR_personality 92
+#define __NR_exit 93
+#define __NR_exit_group 94
+#define __NR_waitid 95
+#define __NR_set_tid_address 96
+#define __NR_unshare 97
+#define __NR_futex 98
+#define __NR_set_robust_list 99
+#define __NR_get_robust_list 100
+#define __NR_nanosleep 101
+#define __NR_getitimer 102
+#define __NR_setitimer 103
+#define __NR_kexec_load 104
+#define __NR_init_module 105
+#define __NR_delete_module 106
+#define __NR_timer_create 107
+#define __NR_timer_gettime 108
+#define __NR_timer_getoverrun 109
+#define __NR_timer_settime 110
+#define __NR_timer_delete 111
+#define __NR_clock_settime 112
+#define __NR_clock_gettime 113
+#define __NR_clock_getres 114
+#define __NR_clock_nanosleep 115
+#define __NR_syslog 116
+#define __NR_ptrace 117
+#define __NR_sched_setparam 118
+#define __NR_sched_setscheduler 119
+#define __NR_sched_getscheduler 120
+#define __NR_sched_getparam 121
+#define __NR_sched_setaffinity 122
+#define __NR_sched_getaffinity 123
+#define __NR_sched_yield 124
+#define __NR_sched_get_priority_max 125
+#define __NR_sched_get_priority_min 126
+#define __NR_sched_rr_get_interval 127
+#define __NR_restart_syscall 128
+#define __NR_kill 129
+#define __NR_tkill 130
+#define __NR_tgkill 131
+#define __NR_sigaltstack 132
+#define __NR_rt_sigsuspend 133
+#define __NR_rt_sigaction 134
+#define __NR_rt_sigprocmask 135
+#define __NR_rt_sigpending 136
+#define __NR_rt_sigtimedwait 137
+#define __NR_rt_sigqueueinfo 138
+#define __NR_rt_sigreturn 139
+#define __NR_setpriority 140
+#define __NR_getpriority 141
+#define __NR_reboot 142
+#define __NR_setregid 143
+#define __NR_setgid 144
+#define __NR_setreuid 145
+#define __NR_setuid 146
+#define __NR_setresuid 147
+#define __NR_getresuid 148
+#define __NR_setresgid 149
+#define __NR_getresgid 150
+#define __NR_setfsuid 151
+#define __NR_setfsgid 152
+#define __NR_times 153
+#define __NR_setpgid 154
+#define __NR_getpgid 155
+#define __NR_getsid 156
+#define __NR_setsid 157
+#define __NR_getgroups 158
+#define __NR_setgroups 159
+#define __NR_uname 160
+#define __NR_sethostname 161
+#define __NR_setdomainname 162
+#define __NR_getrlimit 163
+#define __NR_setrlimit 164
+#define __NR_getrusage 165
+#define __NR_umask 166
+#define __NR_prctl 167
+#define __NR_getcpu 168
+#define __NR_gettimeofday 169
+#define __NR_settimeofday 170
+#define __NR_adjtimex 171
+#define __NR_getpid 172
+#define __NR_getppid 173
+#define __NR_getuid 174
+#define __NR_geteuid 175
+#define __NR_getgid 176
+#define __NR_getegid 177
+#define __NR_gettid 178
+#define __NR_sysinfo 179
+#define __NR_mq_open 180
+#define __NR_mq_unlink 181
+#define __NR_mq_timedsend 182
+#define __NR_mq_timedreceive 183
+#define __NR_mq_notify 184
+#define __NR_mq_getsetattr 185
+#define __NR_msgget 186
+#define __NR_msgctl 187
+#define __NR_msgrcv 188
+#define __NR_msgsnd 189
+#define __NR_semget 190
+#define __NR_semctl 191
+#define __NR_semtimedop 192
+#define __NR_semop 193
+#define __NR_shmget 194
+#define __NR_shmctl 195
+#define __NR_shmat 196
+#define __NR_shmdt 197
+#define __NR_socket 198
+#define __NR_socketpair 199
+#define __NR_bind 200
+#define __NR_listen 201
+#define __NR_accept 202
+#define __NR_connect 203
+#define __NR_getsockname 204
+#define __NR_getpeername 205
+#define __NR_sendto 206
+#define __NR_recvfrom 207
+#define __NR_setsockopt 208
+#define __NR_getsockopt 209
+#define __NR_shutdown 210
+#define __NR_sendmsg 211
+#define __NR_recvmsg 212
+#define __NR_readahead 213
+#define __NR_brk 214
+#define __NR_munmap 215
+#define __NR_mremap 216
+#define __NR_add_key 217
+#define __NR_request_key 218
+#define __NR_keyctl 219
+#define __NR_clone 220
+#define __NR_execve 221
+#define __NR3264_mmap 222
+#define __NR3264_fadvise64 223
+#define __NR_swapon 224
+#define __NR_swapoff 225
+#define __NR_mprotect 226
+#define __NR_msync 227
+#define __NR_mlock 228
+#define __NR_munlock 229
+#define __NR_mlockall 230
+#define __NR_munlockall 231
+#define __NR_mincore 232
+#define __NR_madvise 233
+#define __NR_remap_file_pages 234
+#define __NR_mbind 235
+#define __NR_get_mempolicy 236
+#define __NR_set_mempolicy 237
+#define __NR_migrate_pages 238
+#define __NR_move_pages 239
+#define __NR_rt_tgsigqueueinfo 240
+#define __NR_perf_event_open 241
+#define __NR_accept4 242
+#define __NR_recvmmsg 243
+#define __NR_arch_specific_syscall 244
+#define __NR_wait4 260
+#define __NR_prlimit64 261
+#define __NR_fanotify_init 262
+#define __NR_fanotify_mark 263
+#define __NR_name_to_handle_at 264
+#define __NR_open_by_handle_at 265
+#define __NR_clock_adjtime 266
+#define __NR_syncfs 267
+#define __NR_setns 268
+#define __NR_sendmmsg 269
+#define __NR_process_vm_readv 270
+#define __NR_process_vm_writev 271
+#define __NR_kcmp 272
+#define __NR_finit_module 273
+#define __NR_sched_setattr 274
+#define __NR_sched_getattr 275
+#define __NR_renameat2 276
+#define __NR_seccomp 277
+#define __NR_getrandom 278
+#define __NR_memfd_create 279
+#define __NR_bpf 280
+#define __NR_execveat 281
+#define __NR_userfaultfd 282
+#define __NR_membarrier 283
+#define __NR_mlock2 284
+#define __NR_copy_file_range 285
+#define __NR_preadv2 286
+#define __NR_pwritev2 287
+#define __NR_pkey_mprotect 288
+#define __NR_pkey_alloc 289
+#define __NR_pkey_free 290
+#define __NR_statx 291
+#define __NR_io_pgetevents 292
+#define __NR_rseq 293
+#define __NR_kexec_file_load 294
+#define __NR_pidfd_send_signal 424
+#define __NR_io_uring_setup 425
+#define __NR_io_uring_enter 426
+#define __NR_io_uring_register 427
+#define __NR_open_tree 428
+#define __NR_move_mount 429
+#define __NR_fsopen 430
+#define __NR_fsconfig 431
+#define __NR_fsmount 432
+#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
+#define __NR_close_range 436
+#define __NR_openat2 437
+#define __NR_pidfd_getfd 438
+#define __NR_faccessat2 439
+#define __NR_process_madvise 440
+#define __NR_fcntl __NR3264_fcntl
+#define __NR_statfs __NR3264_statfs
+#define __NR_fstatfs __NR3264_fstatfs
+#define __NR_truncate __NR3264_truncate
+#define __NR_ftruncate __NR3264_ftruncate
+#define __NR_lseek __NR3264_lseek
+#define __NR_sendfile __NR3264_sendfile
+#define __NR_mmap __NR3264_mmap
+#define __NR_fadvise64 __NR3264_fadvise64
diff --git a/arch/loongarch64/bits/user.h b/arch/loongarch64/bits/user.h
new file mode 100644
index 00000000..4d4cd534
--- /dev/null
+++ b/arch/loongarch64/bits/user.h
@@ -0,0 +1,5 @@
+#define ELF_NGREG 45
+#define ELF_NFPREG 33
+
+typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
+typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
new file mode 100644
index 00000000..c806a0bf
--- /dev/null
+++ b/arch/loongarch64/crt_arch.h
@@ -0,0 +1,14 @@
+__asm__(
+".text \n"
+".global " START "\n"
+".type " START ", @function\n"
+START ":\n"
+" add.w $fp, $r0,$r0\n"
+" or $a0, $sp, $zero\n"
+".weak _DYNAMIC\n"
+".hidden _DYNAMIC\n"
+" la.local $a1, _DYNAMIC\n"
+" addi.w $t7, $r0, -16\n"
+" and $sp, $sp, $t7\n"
+" b " START "_c\n"
+);
diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
new file mode 100644
index 00000000..95ee4c7a
--- /dev/null
+++ b/arch/loongarch64/pthread_arch.h
@@ -0,0 +1,13 @@
+static inline uintptr_t __get_tp()
+{
+ register uintptr_t tp __asm__("tp");
+ __asm__ ("" : "=r" (tp) );
+ return tp;
+}
+
+#define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
+
+#define DTP_OFFSET 0
+
+#define MC_PC pc
diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
new file mode 100644
index 00000000..2f759a34
--- /dev/null
+++ b/arch/loongarch64/reloc.h
@@ -0,0 +1,27 @@
+#ifdef __loongarch64_soft_float
+#define FP_SUFFIX "-sf"
+#else
+#define FP_SUFFIX ""
+#endif
+
+#define LDSO_ARCH "loongarch64" FP_SUFFIX
+
+#define TPOFF_K (0x0)
+
+#define REL_PLT R_LARCH_JUMP_SLOT
+#define REL_COPY R_LARCH_COPY
+#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
+#define REL_DTPOFF R_LARCH_TLS_DTPREL64
+#define REL_TPOFF R_LARCH_TLS_TPREL64
+#define REL_RELATIVE R_LARCH_RELATIVE
+#define REL_SYMBOLIC R_LARCH_64
+
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+ "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+ ".hidden " #sym "\n" \
+ ".align 8 \n" \
+ " la.local $t1, "#sym" \n" \
+ " or %0, $t1, $zero \n" \
+ : "=r"(*(fp)) : : "memory" )
diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
new file mode 100644
index 00000000..ddd29578
--- /dev/null
+++ b/arch/loongarch64/syscall_arch.h
@@ -0,0 +1,137 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define SYSCALL_CLOBBERLIST \
+ "$t0", "$t1", "$t2", "$t3", \
+ "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
+
+static inline long __syscall0(long n)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0");
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "=r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall1(long n, long a)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+ register long a6 __asm__("$a6") = g;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
+
+#define IPC_64 0
diff --git a/configure b/configure
index 6f5453f5..aac0c467 100755
--- a/configure
+++ b/configure
@@ -338,6 +338,7 @@ powerpc*|ppc*) ARCH=powerpc ;;
riscv64*) ARCH=riscv64 ;;
sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
s390x*) ARCH=s390x ;;
+loongarch64*) ARCH=loongarch64 ;;
unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;;
*) fail "$0: unknown or unsupported target \"$target\"" ;;
esac
diff --git a/crt/loongarch64/crti.s b/crt/loongarch64/crti.s
new file mode 100644
index 00000000..96a754d3
--- /dev/null
+++ b/crt/loongarch64/crti.s
@@ -0,0 +1,15 @@
+.section .init
+.global _init
+_init:
+ addi.d $r3,$r3,-16
+ st.d $fp,$r3,0
+ st.d $ra,$r3,8
+ addi.d $fp,$r3,16
+
+.section .fini
+.global _fini
+_fini:
+ addi.d $r3,$r3,-16
+ st.d $fp,$r3,0
+ st.d $ra,$r3,8
+ addi.d $fp,$r3,16
diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
new file mode 100644
index 00000000..bffb18f4
--- /dev/null
+++ b/crt/loongarch64/crtn.s
@@ -0,0 +1,12 @@
+.section .init
+ ld.d $fp,$r3,0
+ ld.d $ra,$r3,8
+ addi.d $r3,$r3,16
+ jirl $r0,$ra,0
+
+
+.section .fini
+ ld.d $fp,$r3,0
+ ld.d $ra,$r3,8
+ addi.d $r3,$r3,16
+ jirl $r0,$ra,0
diff --git a/include/elf.h b/include/elf.h
index 86e2f0bb..69b01ff4 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -697,6 +697,11 @@ typedef struct {
#define NT_MIPS_FP_MODE 0x801
#define NT_MIPS_MSA 0x802
#define NT_VERSION 1
+#define NT_LOONGARCH_CPUCFG 0xa00
+#define NT_LOONGARCH_CSR 0xa01
+#define NT_LOONGARCH_LSX 0xa02
+#define NT_LOONGARCH_LASX 0xa03
+#define NT_LOONGARCH_LBT 0xa04
@@ -3288,6 +3293,67 @@ enum
#define R_RISCV_SET32 56
#define R_RISCV_32_PCREL 57
+/* LoongISA ELF Flags */
+#define EM_LOONGARCH 258
+
+#define EF_LARCH_ABI 0x0003
+#define EF_LARCH_ABI_LP64 0x0003
+#define EF_LARCH_ABI_LP32 0x0001
+
+/* Loongarch specific dynamic relocations. */
+#define R_LARCH_NONE 0
+#define R_LARCH_32 1
+#define R_LARCH_64 2
+#define R_LARCH_RELATIVE 3
+#define R_LARCH_COPY 4
+#define R_LARCH_JUMP_SLOT 5
+#define R_LARCH_TLS_DTPMOD32 6
+#define R_LARCH_TLS_DTPMOD64 7
+#define R_LARCH_TLS_DTPREL32 8
+#define R_LARCH_TLS_DTPREL64 9
+#define R_LARCH_TLS_TPREL32 10
+#define R_LARCH_TLS_TPREL64 11
+#define R_LARCH_IRELATIVE 12
+#define R_LARCH_MARK_LA 20
+#define R_LARCH_MARK_PCREL 21
+#define R_LARCH_SOP_PUSH_PCREL 22
+#define R_LARCH_SOP_PUSH_ABSOLUTE 23
+#define R_LARCH_SOP_PUSH_DUP 24
+#define R_LARCH_SOP_PUSH_GPREL 25
+#define R_LARCH_SOP_PUSH_TLS_TPREL 26
+#define R_LARCH_SOP_PUSH_TLS_GOT 27
+#define R_LARCH_SOP_PUSH_TLS_GD 28
+#define R_LARCH_SOP_PUSH_PLT_PCREL 29
+#define R_LARCH_SOP_ASSERT 30
+#define R_LARCH_SOP_NOT 31
+#define R_LARCH_SOP_SUB 32
+#define R_LARCH_SOP_SL 33
+#define R_LARCH_SOP_SR 34
+#define R_LARCH_SOP_ADD 35
+#define R_LARCH_SOP_AND 36
+#define R_LARCH_SOP_IF_ELSE 37
+#define R_LARCH_SOP_POP_32_S_10_5 38
+#define R_LARCH_SOP_POP_32_U_10_12 39
+#define R_LARCH_SOP_POP_32_S_10_12 40
+#define R_LARCH_SOP_POP_32_S_10_16 41
+#define R_LARCH_SOP_POP_32_S_10_16_S2 42
+#define R_LARCH_SOP_POP_32_S_5_20 43
+#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
+#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
+#define R_LARCH_SOP_POP_32_U 46
+#define R_LARCH_ADD8 47
+#define R_LARCH_ADD16 48
+#define R_LARCH_ADD24 49
+#define R_LARCH_ADD32 50
+#define R_LARCH_ADD64 51
+#define R_LARCH_SUB8 52
+#define R_LARCH_SUB16 53
+#define R_LARCH_SUB24 54
+#define R_LARCH_SUB32 55
+#define R_LARCH_SUB64 56
+#define R_LARCH_GNU_VTINHERIT 57
+#define R_LARCH_GNU_VTENTRY 58
+
#ifdef __cplusplus
}
#endif
diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
new file mode 100644
index 00000000..049234be
--- /dev/null
+++ b/src/fenv/loongarch64/fenv.S
@@ -0,0 +1,72 @@
+#ifndef __loongarch_soft_float
+
+.global feclearexcept
+.type feclearexcept,@function
+feclearexcept:
+ li.w $a1, 0x1f0000 //flags in 16-20 bit of fcsr0.
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ xor $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global feraiseexcept
+.type feraiseexcept,@function
+feraiseexcept:
+ li.w $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fetestexcept
+.type fetestexcept,@function
+fetestexcept:
+ li.w $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ and $v0, $a1, $a0
+ jirl $zero, $ra, 0
+
+.global fegetround
+.type fegetround,@function
+fegetround:
+ movfcsr2gr $v0, $r0
+ andi $v0, $v0, 0x300 //fcsr0.RM
+ jirl $zero, $ra, 0
+
+.global __fesetround
+.hidden __fesetround
+.type __fesetround,@function
+__fesetround:
+ movfcsr2gr $a1, $r0
+ li.w $a2, -769 //0xfffffcff
+ and $a1, $a1, $a2
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fegetenv
+.type fegetenv,@function
+fegetenv:
+ movfcsr2gr $a1, $r0
+ st.w $a1, $a0, 0
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fesetenv
+.type fesetenv,@function
+fesetenv:
+ addi.d $a1, $a0, 1
+ beq $a1, $r0, 1f
+ ld.w $a1, $a0, 0
+1: movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+#endif
diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
new file mode 100644
index 00000000..5f51ed85
--- /dev/null
+++ b/src/ldso/loongarch64/dlsym.s
@@ -0,0 +1,7 @@
+.global dlsym
+.hidden __dlsym
+.type dlsym,@function
+dlsym:
+ move $a2, $ra
+ la.global $r16, __dlsym
+ jirl $r0, $r16, 0
diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
new file mode 100644
index 00000000..41d897ed
--- /dev/null
+++ b/src/setjmp/loongarch64/longjmp.S
@@ -0,0 +1,37 @@
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+ add.d $t5, $a0, $zero
+ add.d $v0, $a1, $zero
+
+ bne $v0, $zero, 1f
+ addi.d $v0, $v0, 1
+
+1:
+ ld.d $ra, $t5, 0
+ ld.d $sp, $t5, 8
+ ld.d $r21,$t5, 16
+ ld.d $fp, $t5, 24
+ ld.d $s0, $t5, 32
+ ld.d $s1, $t5, 40
+ ld.d $s2, $t5, 48
+ ld.d $s3, $t5, 56
+ ld.d $s4, $t5, 64
+ ld.d $s5, $t5, 72
+ ld.d $s6, $t5, 80
+ ld.d $s7, $t5, 88
+ ld.d $s8, $t5, 96
+#ifndef __loongarch64_soft_float
+ fld.d $fs0, $t5, 104
+ fld.d $fs1, $t5, 112
+ fld.d $fs2, $t5, 120
+ fld.d $fs3, $t5, 128
+ fld.d $fs4, $t5, 136
+ fld.d $fs5, $t5, 144
+ fld.d $fs6, $t5, 152
+ fld.d $fs7, $t5, 160
+#endif
+ jirl $zero, $ra, 0
diff --git a/src/setjmp/loongarch64/setjmp.S b/src/setjmp/loongarch64/setjmp.S
new file mode 100644
index 00000000..8dca3cb8
--- /dev/null
+++ b/src/setjmp/loongarch64/setjmp.S
@@ -0,0 +1,34 @@
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+ st.d $ra, $a0, 0
+ st.d $sp, $a0, 8
+ st.d $r21,$a0, 16
+ st.d $fp, $a0, 24
+ st.d $s0, $a0, 32
+ st.d $s1, $a0, 40
+ st.d $s2, $a0, 48
+ st.d $s3, $a0, 56
+ st.d $s4, $a0, 64
+ st.d $s5, $a0, 72
+ st.d $s6, $a0, 80
+ st.d $s7, $a0, 88
+ st.d $s8, $a0, 96
+#ifndef __loongarch64_soft_float
+ fst.d $fs0, $a0, 104
+ fst.d $fs1, $a0, 112
+ fst.d $fs2, $a0, 120
+ fst.d $fs3, $a0, 128
+ fst.d $fs4, $a0, 136
+ fst.d $fs5, $a0, 144
+ fst.d $fs6, $a0, 152
+ fst.d $fs7, $a0, 160
+#endif
+ xor $v0, $v0, $v0
+ jirl $zero, $ra, 0
diff --git a/src/signal/loongarch64/restore.s b/src/signal/loongarch64/restore.s
new file mode 100644
index 00000000..9bf015a0
--- /dev/null
+++ b/src/signal/loongarch64/restore.s
@@ -0,0 +1,10 @@
+.global __restore_rt
+.global __restore
+.hidden __restore_rt
+.hidden __restore
+.type __restore_rt,@function
+.type __restore,@function
+__restore_rt:
+__restore:
+ ori $a7, $zero, 139
+ syscall 0
diff --git a/src/signal/loongarch64/sigsetjmp.s b/src/signal/loongarch64/sigsetjmp.s
new file mode 100644
index 00000000..d53f334a
--- /dev/null
+++ b/src/signal/loongarch64/sigsetjmp.s
@@ -0,0 +1,29 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+ or $t5, $a0, $zero
+ or $t6, $a1, $zero
+
+ # comparing save mask with 0, if equals to 0 then
+ # sigsetjmp is equal to setjmp.
+ beq $t6, $zero, 1f
+ st.d $ra, $t5, 168
+
+ # save base of got so that we can use it later
+ # once we return from 'longjmp'
+ la.global $t8, setjmp
+ jirl $ra, $t8, 0
+
+ or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
+ ld.d $ra, $t5, 168 # Restore ra of sigsetjmp
+ or $a0, $t5, $zero
+
+.hidden __sigsetjmp_tail
+ la.global $t8, __sigsetjmp_tail
+ jirl $zero, $t8, 0
+1:
+ la.global $t8, setjmp
+ jirl $zero, $t8, 0
diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
new file mode 100644
index 00000000..421cd381
--- /dev/null
+++ b/src/thread/loongarch64/__set_thread_area.s
@@ -0,0 +1,7 @@
+.global __set_thread_area
+.hidden __set_thread_area
+.type __set_thread_area,@function
+__set_thread_area:
+ or $tp, $a0, $zero
+ ori $a0, $zero, 0
+ jirl $zero, $ra, 0
diff --git a/src/thread/loongarch64/__unmapself.s b/src/thread/loongarch64/__unmapself.s
new file mode 100644
index 00000000..b77e6d1d
--- /dev/null
+++ b/src/thread/loongarch64/__unmapself.s
@@ -0,0 +1,7 @@
+.global __unmapself
+.type __unmapself, @function
+__unmapself:
+ li.d $a7, 215
+ syscall 0 # call munmap
+ li.d $a7, 93
+ syscall 0 # call exit
diff --git a/src/thread/loongarch64/clone.s b/src/thread/loongarch64/clone.s
new file mode 100644
index 00000000..ec920c7b
--- /dev/null
+++ b/src/thread/loongarch64/clone.s
@@ -0,0 +1,47 @@
+#__clone(func, stack, flags, arg, ptid, tls, ctid)
+# a0, a1, a2, a3, a4, a5, a6
+# sys_clone3(struct clone_args *cl_args, size_t size)
+# a0 a1
+
+.global __clone
+.hidden __clone
+.type __clone,@function
+__clone:
+ # Save function pointer and argument pointer on new thread stack
+ addi.d $a1, $a1, -16
+ st.d $a0, $a1, 0 # save function pointer
+ st.d $a3, $a1, 8 # save argument pointer
+
+ li.d $t0, ~0x004000ff # mask CSIGNAL and CLONE_DETACHED
+ and $t1, $a2, $t0 # cl_args.flags
+ li.d $t0, 0x000000ff # CSIGNAL
+ and $t2, $a2, $t0 # cl_args.exit_signal
+
+ bstrins.d $sp, $zero, 2, 0 # align stack to 8 bytes
+ addi.d $sp, $sp, -88 # struct clone_args
+ st.d $t1, $sp, 0 # flags
+ st.d $a4, $sp, 8 # pidfd
+ st.d $a6, $sp, 16 # child_tid
+ st.d $a4, $sp, 24 # parent_tid
+ st.d $t2, $sp, 32 # exit_signal
+ st.d $a1, $sp, 40 # stack
+ st.d $zero, $sp, 48 # stack_size
+ st.d $a5, $sp, 56 # tls
+ st.d $zero, $sp, 64 # set_tid
+ st.d $zero, $sp, 72 # set_tid_size
+ st.d $zero, $sp, 80 # cgroup
+
+ move $a0, $sp
+ li.d $a1, 88
+ li.d $a7, 435 # __NR_clone3
+ syscall 0 # call clone3
+
+ beqz $a0, 1f # whether child process
+ addi.d $sp, $sp, 88
+ jirl $zero, $ra, 0 # parent process return
+1:
+ ld.d $t8, $sp, 0 # function pointer
+ ld.d $a0, $sp, 8 # argument pointer
+ jirl $ra, $t8, 0 # call the user's function
+ li.d $a7, 93
+ syscall 0 # child process exit
diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
new file mode 100644
index 00000000..3903ed2c
--- /dev/null
+++ b/src/thread/loongarch64/syscall_cp.s
@@ -0,0 +1,29 @@
+.global __cp_begin
+.hidden __cp_begin
+.global __cp_end
+.hidden __cp_end
+.global __cp_cancel
+.hidden __cp_cancel
+.hidden __cancel
+.global __syscall_cp_asm
+.hidden __syscall_cp_asm
+.type __syscall_cp_asm,@function
+
+__syscall_cp_asm:
+__cp_begin:
+ ld.w $a0, $a0, 0
+ bnez $a0, __cp_cancel
+ or $t8, $a1, $zero # reserve system call number
+ or $a0, $a2, $zero
+ or $a1, $a3, $zero
+ or $a2, $a4, $zero
+ or $a3, $a5, $zero
+ or $a4, $a6, $zero
+ or $a5, $a7, $zero
+ or $a7, $t8, $zero
+ syscall 0
+__cp_end:
+ jirl $zero, $ra, 0
+__cp_cancel:
+ la.local $t8, __cancel
+ jirl $zero, $t8, 0
--
2.34.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* [musl] Re: add loongarch64 port v4
2022-06-08 3:56 [musl] add loongarch64 port v4 王洪亮
@ 2022-06-14 7:23 ` 王洪亮
2022-06-20 9:49 ` 王洪亮
0 siblings, 1 reply; 7+ messages in thread
From: 王洪亮 @ 2022-06-14 7:23 UTC (permalink / raw)
To: musl
Hi,
1. this patch has any other problems need to be modified?
2.what are the suggestions for support LA32?
在 2022/6/8 上午11:56, 王洪亮 写道:
> Hi,
>
> I published loongarch64 port v4 in
> https://github.com/loongson/musl/tree/loongarch-v2.0.
>
> fixed the following problems:
>
> 1.fixed the extension field of struct mcontext
>
> 2.removed arch/loongarch64/kstat.h
>
> 3.deleted the incorrect definition in arch/loongarch64/reloc.h
>
> 4.optimize dlsym
>
> please code review if there are any other problems ? thanks.
>
> I have one questions:
>
> Through add "long__uc_pad" in struct ucontext_t to meet the
> extcontext[] 16 bytes alignment,
>
> if run in loongarch32, this method not meet the 16 bytes alignment
> requirement. how to do it ?
>
>
> Hongliang Wang.
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* [musl] Re: add loongarch64 port v4
2022-06-14 7:23 ` [musl] " 王洪亮
@ 2022-06-20 9:49 ` 王洪亮
2022-06-23 1:30 ` 王洪亮
0 siblings, 1 reply; 7+ messages in thread
From: 王洪亮 @ 2022-06-20 9:49 UTC (permalink / raw)
To: musl
Hi, Rich
1. this patch has any other problems need to be modified?
2.what are the suggestions for support LA32 later?
在 2022/6/14 下午3:23, 王洪亮 写道:
> Hi,
>
> 1. this patch has any other problems need to be modified?
>
> 2.what are the suggestions for support LA32?
>
>
> 在 2022/6/8 上午11:56, 王洪亮 写道:
>> Hi,
>>
>> I published loongarch64 port v4 in
>> https://github.com/loongson/musl/tree/loongarch-v2.0.
>>
>> fixed the following problems:
>>
>> 1.fixed the extension field of struct mcontext
>>
>> 2.removed arch/loongarch64/kstat.h
>>
>> 3.deleted the incorrect definition in arch/loongarch64/reloc.h
>>
>> 4.optimize dlsym
>>
>> please code review if there are any other problems ? thanks.
>>
>> I have one questions:
>>
>> Through add "long__uc_pad" in struct ucontext_t to meet the
>> extcontext[] 16 bytes alignment,
>>
>> if run in loongarch32, this method not meet the 16 bytes alignment
>> requirement. how to do it ?
>>
>>
>> Hongliang Wang.
>>
^ permalink raw reply [flat|nested] 7+ messages in thread
* [musl] Re: add loongarch64 port v4
2022-06-20 9:49 ` 王洪亮
@ 2022-06-23 1:30 ` 王洪亮
2022-06-23 1:59 ` Rich Felker
0 siblings, 1 reply; 7+ messages in thread
From: 王洪亮 @ 2022-06-23 1:30 UTC (permalink / raw)
To: musl
[-- Attachment #1: Type: text/plain, Size: 1221 bytes --]
Hi, Rich
this patch has any other problems need to be modified?
Looking forward to your reply. thanks.
Hongliang Wang
在 2022/6/20 下午5:49, 王洪亮 写道:
> Hi, Rich
>
> 1. this patch has any other problems need to be modified?
>
> 2.what are the suggestions for support LA32 later?
>
>
> 在 2022/6/14 下午3:23, 王洪亮 写道:
>> Hi,
>>
>> 1. this patch has any other problems need to be modified?
>>
>> 2.what are the suggestions for support LA32?
>>
>>
>> 在 2022/6/8 上午11:56, 王洪亮 写道:
>>> Hi,
>>>
>>> I published loongarch64 port v4 in
>>> https://github.com/loongson/musl/tree/loongarch-v2.0.
>>>
>>> fixed the following problems:
>>>
>>> 1.fixed the extension field of struct mcontext
>>>
>>> 2.removed arch/loongarch64/kstat.h
>>>
>>> 3.deleted the incorrect definition in arch/loongarch64/reloc.h
>>>
>>> 4.optimize dlsym
>>>
>>> please code review if there are any other problems ? thanks.
>>>
>>> I have one questions:
>>>
>>> Through add "long__uc_pad" in struct ucontext_t to meet the
>>> extcontext[] 16 bytes alignment,
>>>
>>> if run in loongarch32, this method not meet the 16 bytes alignment
>>> requirement. how to do it ?
>>>
>>>
>>> Hongliang Wang.
>>>
[-- Attachment #2: 0001-add-loongarch64-port-v4.patch --]
[-- Type: text/x-patch, Size: 47132 bytes --]
From 5535c500f137c3cb9ad36c7c96e7aaca440c85bd Mon Sep 17 00:00:00 2001
From: wanghongliang <wanghongliang@loongson.cn>
Date: Wed, 8 Jun 2022 01:42:12 +0800
Subject: [PATCH] add loongarch64 port v4.
Author: xiaojuanZhai <zhaixiaojuan@loongson.cn>
Author: meidanLi <limeidan@loongson.cn>
Author: guoqiChen <chenguoqi@loongson.cn>
Author: xiaolinZhao <zhaoxiaolin@loongson.cn>
Author: Fanpeng <fanpeng@loongson.cn>
Author: jiantaoShan <shanjiantao@loongson.cn>
Author: xuhuiQiang <qiangxuhui@loongson.cn>
Author: jingyunHua <huajingyun@loongson.cn>
Author: liuxue <liuxue@loongson.cn>
Author: wanghongliang <wanghongliang@loongson.cn
Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
---
arch/loongarch64/atomic_arch.h | 53 ++++
arch/loongarch64/bits/alltypes.h.in | 18 ++
arch/loongarch64/bits/fenv.h | 20 ++
arch/loongarch64/bits/float.h | 16 ++
arch/loongarch64/bits/hwcap.h | 14 +
arch/loongarch64/bits/posix.h | 2 +
arch/loongarch64/bits/ptrace.h | 4 +
arch/loongarch64/bits/reg.h | 66 +++++
arch/loongarch64/bits/setjmp.h | 1 +
arch/loongarch64/bits/signal.h | 80 ++++++
arch/loongarch64/bits/stat.h | 18 ++
arch/loongarch64/bits/stdint.h | 20 ++
arch/loongarch64/bits/syscall.h.in | 303 +++++++++++++++++++++
arch/loongarch64/bits/user.h | 5 +
arch/loongarch64/crt_arch.h | 14 +
arch/loongarch64/pthread_arch.h | 13 +
arch/loongarch64/reloc.h | 27 ++
arch/loongarch64/syscall_arch.h | 137 ++++++++++
configure | 1 +
crt/loongarch64/crti.s | 15 +
crt/loongarch64/crtn.s | 12 +
include/elf.h | 66 +++++
src/fenv/loongarch64/fenv.S | 72 +++++
src/ldso/loongarch64/dlsym.s | 7 +
src/setjmp/loongarch64/longjmp.S | 37 +++
src/setjmp/loongarch64/setjmp.S | 34 +++
src/signal/loongarch64/restore.s | 10 +
src/signal/loongarch64/sigsetjmp.s | 29 ++
src/thread/loongarch64/__set_thread_area.s | 7 +
src/thread/loongarch64/__unmapself.s | 7 +
src/thread/loongarch64/clone.s | 47 ++++
src/thread/loongarch64/syscall_cp.s | 29 ++
32 files changed, 1184 insertions(+)
create mode 100644 arch/loongarch64/atomic_arch.h
create mode 100644 arch/loongarch64/bits/alltypes.h.in
create mode 100644 arch/loongarch64/bits/fenv.h
create mode 100644 arch/loongarch64/bits/float.h
create mode 100644 arch/loongarch64/bits/hwcap.h
create mode 100644 arch/loongarch64/bits/posix.h
create mode 100644 arch/loongarch64/bits/ptrace.h
create mode 100644 arch/loongarch64/bits/reg.h
create mode 100644 arch/loongarch64/bits/setjmp.h
create mode 100644 arch/loongarch64/bits/signal.h
create mode 100644 arch/loongarch64/bits/stat.h
create mode 100644 arch/loongarch64/bits/stdint.h
create mode 100644 arch/loongarch64/bits/syscall.h.in
create mode 100644 arch/loongarch64/bits/user.h
create mode 100644 arch/loongarch64/crt_arch.h
create mode 100644 arch/loongarch64/pthread_arch.h
create mode 100644 arch/loongarch64/reloc.h
create mode 100644 arch/loongarch64/syscall_arch.h
create mode 100644 crt/loongarch64/crti.s
create mode 100644 crt/loongarch64/crtn.s
create mode 100644 src/fenv/loongarch64/fenv.S
create mode 100644 src/ldso/loongarch64/dlsym.s
create mode 100644 src/setjmp/loongarch64/longjmp.S
create mode 100644 src/setjmp/loongarch64/setjmp.S
create mode 100644 src/signal/loongarch64/restore.s
create mode 100644 src/signal/loongarch64/sigsetjmp.s
create mode 100644 src/thread/loongarch64/__set_thread_area.s
create mode 100644 src/thread/loongarch64/__unmapself.s
create mode 100644 src/thread/loongarch64/clone.s
create mode 100644 src/thread/loongarch64/syscall_cp.s
diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
new file mode 100644
index 00000000..bf4805c9
--- /dev/null
+++ b/arch/loongarch64/atomic_arch.h
@@ -0,0 +1,53 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+ int v;
+ __asm__ __volatile__ (
+ "ll.w %0, %1"
+ : "=r"(v)
+ : "ZC"(*p));
+ return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+ int r;
+ __asm__ __volatile__ (
+ "sc.w %0, %1"
+ : "=r"(r), "=ZC"(*p)
+ : "0"(v) : "memory");
+ return r;
+}
+
+#define a_ll_p a_ll_p
+static inline void *a_ll_p(volatile void *p)
+{
+ void *v;
+ __asm__ __volatile__ (
+ "ll.d %0, %1"
+ : "=r"(v)
+ : "ZC"(*(void *volatile *)p));
+ return v;
+}
+
+#define a_sc_p a_sc_p
+static inline int a_sc_p(volatile void *p, void *v)
+{
+ long r;
+ __asm__ __volatile__ (
+ "sc.d %0, %1"
+ : "=r"(r), "=ZC"(*(void *volatile *)p)
+ : "0"(v)
+ : "memory");
+ return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+ __asm__ __volatile__ ("dbar 0" : : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
new file mode 100644
index 00000000..d1807aca
--- /dev/null
+++ b/arch/loongarch64/bits/alltypes.h.in
@@ -0,0 +1,18 @@
+#define _Addr long
+#define _Int64 long
+#define _Reg long
+
+#define __BYTE_ORDER 1234
+#define __LONG_MAX 0x7fffffffffffffffL
+
+#ifndef __cplusplus
+TYPEDEF int wchar_t;
+#endif
+
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+
+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
+
+TYPEDEF unsigned nlink_t;
+TYPEDEF int blksize_t;
diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
new file mode 100644
index 00000000..264cafb5
--- /dev/null
+++ b/arch/loongarch64/bits/fenv.h
@@ -0,0 +1,20 @@
+#define FE_INEXACT 0x010000
+#define FE_UNDERFLOW 0x020000
+#define FE_OVERFLOW 0x040000
+#define FE_DIVBYZERO 0x080000
+#define FE_INVALID 0x100000
+
+#define FE_ALL_EXCEPT 0x1F0000
+
+#define FE_TONEAREST 0x000
+#define FE_TOWARDZERO 0x100
+#define FE_UPWARD 0x200
+#define FE_DOWNWARD 0x300
+
+typedef unsigned fexcept_t;
+
+typedef struct {
+ unsigned __cw;
+} fenv_t;
+
+#define FE_DFL_ENV ((const fenv_t *) -1)
diff --git a/arch/loongarch64/bits/float.h b/arch/loongarch64/bits/float.h
new file mode 100644
index 00000000..719c7908
--- /dev/null
+++ b/arch/loongarch64/bits/float.h
@@ -0,0 +1,16 @@
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
+#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
+#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
+#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
+
+#define LDBL_MANT_DIG 113
+#define LDBL_MIN_EXP (-16381)
+#define LDBL_MAX_EXP 16384
+
+#define LDBL_DIG 33
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_10_EXP 4932
+
+#define DECIMAL_DIG 36
diff --git a/arch/loongarch64/bits/hwcap.h b/arch/loongarch64/bits/hwcap.h
new file mode 100644
index 00000000..c9fa08f6
--- /dev/null
+++ b/arch/loongarch64/bits/hwcap.h
@@ -0,0 +1,14 @@
+/* HWCAP - Hardware Capabilities.
+ * Hardware information is not clear at present, leave it blank.
+ */
+#define HWCAP_LOONGARCH_CPUCFG (1 << 0)
+#define HWCAP_LOONGARCH_FPU (1 << 1)
+#define HWCAP_LOONGARCH_LSX (1 << 2) /* support 128bit vectors*/
+#define HWCAP_LOONGARCH_LASX (1 << 3) /* support 256bit vectors*/
+#define HWCAP_LOONGARCH_LBT (1 << 4) /* support LBT*/
+#define HWCAP_LOONGARCH_LVZ (1 << 5) /* support virtualization expansion*/
+#define HWCAP_LOONGARCH_CRC32 (1 << 7) /* support CRC32 check*/
+#define HWCAP_LOONGARCH_AES (1 << 6)
+#define HWCAP_LOONGARCH_SHA1 (1 << 8)
+#define HWCAP_LOONGARCH_SHA2 (1 << 9)
+#define HWCAP_LOONGARCH_SHA3 (1 << 10)
diff --git a/arch/loongarch64/bits/posix.h b/arch/loongarch64/bits/posix.h
new file mode 100644
index 00000000..8068ce98
--- /dev/null
+++ b/arch/loongarch64/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_LP64_OFF64 1
+#define _POSIX_V7_LP64_OFF64 1
diff --git a/arch/loongarch64/bits/ptrace.h b/arch/loongarch64/bits/ptrace.h
new file mode 100644
index 00000000..741fc668
--- /dev/null
+++ b/arch/loongarch64/bits/ptrace.h
@@ -0,0 +1,4 @@
+#define PTRACE_GET_THREAD_AREA 25
+#define PTRACE_SET_THREAD_AREA 26
+#define PTRACE_GET_WATCH_REGS 0xd0
+#define PTRACE_SET_WATCH_REGS 0xd1
diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
new file mode 100644
index 00000000..5d3f92c5
--- /dev/null
+++ b/arch/loongarch64/bits/reg.h
@@ -0,0 +1,66 @@
+#undef __WORDSIZE
+#define __WORDSIZE 64
+#define LOONGARCH64_EF_R0 0
+#define LOONGARCH64_EF_R1 1
+#define LOONGARCH64_EF_R2 2
+#define LOONGARCH64_EF_R3 3
+#define LOONGARCH64_EF_R4 4
+#define LOONGARCH64_EF_R5 5
+#define LOONGARCH64_EF_R6 6
+#define LOONGARCH64_EF_R7 7
+#define LOONGARCH64_EF_R8 8
+#define LOONGARCH64_EF_R9 9
+#define LOONGARCH64_EF_R10 10
+#define LOONGARCH64_EF_R11 11
+#define LOONGARCH64_EF_R12 12
+#define LOONGARCH64_EF_R13 13
+#define LOONGARCH64_EF_R14 14
+#define LOONGARCH64_EF_R15 15
+#define LOONGARCH64_EF_R16 16
+#define LOONGARCH64_EF_R17 17
+#define LOONGARCH64_EF_R18 18
+#define LOONGARCH64_EF_R19 19
+#define LOONGARCH64_EF_R20 20
+#define LOONGARCH64_EF_R21 21
+#define LOONGARCH64_EF_R22 22
+#define LOONGARCH64_EF_R23 23
+#define LOONGARCH64_EF_R24 24
+#define LOONGARCH64_EF_R25 25
+#define LOONGARCH64_EF_R26 26
+#define LOONGARCH64_EF_R27 27
+#define LOONGARCH64_EF_R28 28
+#define LOONGARCH64_EF_R29 29
+#define LOONGARCH64_EF_R30 30
+#define LOONGARCH64_EF_R31 31
+
+#define LOONGARCH64_EF_SIZE 304 /* size in bytes */
+
+#define EF_R0 LOONGARCH64_EF_R0
+#define EF_R1 LOONGARCH64_EF_R1
+#define EF_R2 LOONGARCH64_EF_R2
+#define EF_R3 LOONGARCH64_EF_R3
+#define EF_R4 LOONGARCH64_EF_R4
+#define EF_R5 LOONGARCH64_EF_R5
+#define EF_R6 LOONGARCH64_EF_R6
+#define EF_R7 LOONGARCH64_EF_R7
+#define EF_R8 LOONGARCH64_EF_R8
+#define EF_R9 LOONGARCH64_EF_R9
+#define EF_R10 LOONGARCH64_EF_R10
+#define EF_R11 LOONGARCH64_EF_R11
+#define EF_R12 LOONGARCH64_EF_R12
+#define EF_R13 LOONGARCH64_EF_R13
+#define EF_R14 LOONGARCH64_EF_R14
+#define EF_R15 LOONGARCH64_EF_R15
+#define EF_R16 LOONGARCH64_EF_R16
+#define EF_R17 LOONGARCH64_EF_R17
+#define EF_R18 LOONGARCH64_EF_R18
+#define EF_R19 LOONGARCH64_EF_R19
+#define EF_R20 LOONGARCH64_EF_R20
+#define EF_R21 LOONGARCH64_EF_R21
+#define EF_R22 LOONGARCH64_EF_R22
+#define EF_R23 LOONGARCH64_EF_R23
+#define EF_R24 LOONGARCH64_EF_R24
+#define EF_R25 LOONGARCH64_EF_R25
+#define EF_R26 LOONGARCH64_EF_R26
+#define EF_R27 LOONGARCH64_EF_R27
+#define EF_R28 LOONGARCH64_EF_R28
diff --git a/arch/loongarch64/bits/setjmp.h b/arch/loongarch64/bits/setjmp.h
new file mode 100644
index 00000000..f4a7f8a3
--- /dev/null
+++ b/arch/loongarch64/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long long __jmp_buf[22];
diff --git a/arch/loongarch64/bits/signal.h b/arch/loongarch64/bits/signal.h
new file mode 100644
index 00000000..4db790e7
--- /dev/null
+++ b/arch/loongarch64/bits/signal.h
@@ -0,0 +1,80 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MINSIGSTKSZ 4096
+#define SIGSTKSZ 16384
+#endif
+
+typedef unsigned long greg_t, gregset_t[32];
+
+typedef struct sigcontext {
+ unsigned long pc;
+ gregset_t gregs;
+ unsigned int flags;
+ unsigned long extcontext[];
+} mcontext_t;
+
+struct sigaltstack {
+ void *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+};
+
+typedef struct __ucontext
+{
+ unsigned long uc_flags;
+ struct __ucontext *uc_link;
+ stack_t uc_stack;
+ sigset_t uc_sigmask;
+ long __uc_pad;
+ mcontext_t uc_mcontext;
+} ucontext_t;
+
+#define SA_NOCLDSTOP 1
+#define SA_NOCLDWAIT 2
+#define SA_SIGINFO 4
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+#define SA_RESTORER 0x04000000
+
+#endif
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT SIGABRT
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 65
diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
new file mode 100644
index 00000000..b7f4221b
--- /dev/null
+++ b/arch/loongarch64/bits/stat.h
@@ -0,0 +1,18 @@
+struct stat {
+ dev_t st_dev;
+ ino_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ dev_t st_rdev;
+ unsigned long __pad;
+ off_t st_size;
+ blksize_t st_blksize;
+ int __pad2;
+ blkcnt_t st_blocks;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned __unused[2];
+};
diff --git a/arch/loongarch64/bits/stdint.h b/arch/loongarch64/bits/stdint.h
new file mode 100644
index 00000000..1bb147f2
--- /dev/null
+++ b/arch/loongarch64/bits/stdint.h
@@ -0,0 +1,20 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST32_MIN INT32_MIN
+
+#define INT_FAST16_MAX INT32_MAX
+#define INT_FAST32_MAX INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INTPTR_MIN INT64_MIN
+#define INTPTR_MAX INT64_MAX
+#define UINTPTR_MAX UINT64_MAX
+#define PTRDIFF_MIN INT64_MIN
+#define PTRDIFF_MAX INT64_MAX
+#define SIZE_MAX UINT64_MAX
diff --git a/arch/loongarch64/bits/syscall.h.in b/arch/loongarch64/bits/syscall.h.in
new file mode 100644
index 00000000..689ff36b
--- /dev/null
+++ b/arch/loongarch64/bits/syscall.h.in
@@ -0,0 +1,303 @@
+#define __NR_io_setup 0
+#define __NR_io_destroy 1
+#define __NR_io_submit 2
+#define __NR_io_cancel 3
+#define __NR_io_getevents 4
+#define __NR_setxattr 5
+#define __NR_lsetxattr 6
+#define __NR_fsetxattr 7
+#define __NR_getxattr 8
+#define __NR_lgetxattr 9
+#define __NR_fgetxattr 10
+#define __NR_listxattr 11
+#define __NR_llistxattr 12
+#define __NR_flistxattr 13
+#define __NR_removexattr 14
+#define __NR_lremovexattr 15
+#define __NR_fremovexattr 16
+#define __NR_getcwd 17
+#define __NR_lookup_dcookie 18
+#define __NR_eventfd2 19
+#define __NR_epoll_create1 20
+#define __NR_epoll_ctl 21
+#define __NR_epoll_pwait 22
+#define __NR_dup 23
+#define __NR_dup3 24
+#define __NR3264_fcntl 25
+#define __NR_inotify_init1 26
+#define __NR_inotify_add_watch 27
+#define __NR_inotify_rm_watch 28
+#define __NR_ioctl 29
+#define __NR_ioprio_set 30
+#define __NR_ioprio_get 31
+#define __NR_flock 32
+#define __NR_mknodat 33
+#define __NR_mkdirat 34
+#define __NR_unlinkat 35
+#define __NR_symlinkat 36
+#define __NR_linkat 37
+#define __NR_umount2 39
+#define __NR_mount 40
+#define __NR_pivot_root 41
+#define __NR_nfsservctl 42
+#define __NR3264_statfs 43
+#define __NR3264_fstatfs 44
+#define __NR3264_truncate 45
+#define __NR3264_ftruncate 46
+#define __NR_fallocate 47
+#define __NR_faccessat 48
+#define __NR_chdir 49
+#define __NR_fchdir 50
+#define __NR_chroot 51
+#define __NR_fchmod 52
+#define __NR_fchmodat 53
+#define __NR_fchownat 54
+#define __NR_fchown 55
+#define __NR_openat 56
+#define __NR_close 57
+#define __NR_vhangup 58
+#define __NR_pipe2 59
+#define __NR_quotactl 60
+#define __NR_getdents64 61
+#define __NR3264_lseek 62
+#define __NR_read 63
+#define __NR_write 64
+#define __NR_readv 65
+#define __NR_writev 66
+#define __NR_pread64 67
+#define __NR_pwrite64 68
+#define __NR_preadv 69
+#define __NR_pwritev 70
+#define __NR3264_sendfile 71
+#define __NR_pselect6 72
+#define __NR_ppoll 73
+#define __NR_signalfd4 74
+#define __NR_vmsplice 75
+#define __NR_splice 76
+#define __NR_tee 77
+#define __NR_readlinkat 78
+#define __NR_sync 81
+#define __NR_fsync 82
+#define __NR_fdatasync 83
+#define __NR_sync_file_range 84
+#define __NR_timerfd_create 85
+#define __NR_timerfd_settime 86
+#define __NR_timerfd_gettime 87
+#define __NR_utimensat 88
+#define __NR_acct 89
+#define __NR_capget 90
+#define __NR_capset 91
+#define __NR_personality 92
+#define __NR_exit 93
+#define __NR_exit_group 94
+#define __NR_waitid 95
+#define __NR_set_tid_address 96
+#define __NR_unshare 97
+#define __NR_futex 98
+#define __NR_set_robust_list 99
+#define __NR_get_robust_list 100
+#define __NR_nanosleep 101
+#define __NR_getitimer 102
+#define __NR_setitimer 103
+#define __NR_kexec_load 104
+#define __NR_init_module 105
+#define __NR_delete_module 106
+#define __NR_timer_create 107
+#define __NR_timer_gettime 108
+#define __NR_timer_getoverrun 109
+#define __NR_timer_settime 110
+#define __NR_timer_delete 111
+#define __NR_clock_settime 112
+#define __NR_clock_gettime 113
+#define __NR_clock_getres 114
+#define __NR_clock_nanosleep 115
+#define __NR_syslog 116
+#define __NR_ptrace 117
+#define __NR_sched_setparam 118
+#define __NR_sched_setscheduler 119
+#define __NR_sched_getscheduler 120
+#define __NR_sched_getparam 121
+#define __NR_sched_setaffinity 122
+#define __NR_sched_getaffinity 123
+#define __NR_sched_yield 124
+#define __NR_sched_get_priority_max 125
+#define __NR_sched_get_priority_min 126
+#define __NR_sched_rr_get_interval 127
+#define __NR_restart_syscall 128
+#define __NR_kill 129
+#define __NR_tkill 130
+#define __NR_tgkill 131
+#define __NR_sigaltstack 132
+#define __NR_rt_sigsuspend 133
+#define __NR_rt_sigaction 134
+#define __NR_rt_sigprocmask 135
+#define __NR_rt_sigpending 136
+#define __NR_rt_sigtimedwait 137
+#define __NR_rt_sigqueueinfo 138
+#define __NR_rt_sigreturn 139
+#define __NR_setpriority 140
+#define __NR_getpriority 141
+#define __NR_reboot 142
+#define __NR_setregid 143
+#define __NR_setgid 144
+#define __NR_setreuid 145
+#define __NR_setuid 146
+#define __NR_setresuid 147
+#define __NR_getresuid 148
+#define __NR_setresgid 149
+#define __NR_getresgid 150
+#define __NR_setfsuid 151
+#define __NR_setfsgid 152
+#define __NR_times 153
+#define __NR_setpgid 154
+#define __NR_getpgid 155
+#define __NR_getsid 156
+#define __NR_setsid 157
+#define __NR_getgroups 158
+#define __NR_setgroups 159
+#define __NR_uname 160
+#define __NR_sethostname 161
+#define __NR_setdomainname 162
+#define __NR_getrlimit 163
+#define __NR_setrlimit 164
+#define __NR_getrusage 165
+#define __NR_umask 166
+#define __NR_prctl 167
+#define __NR_getcpu 168
+#define __NR_gettimeofday 169
+#define __NR_settimeofday 170
+#define __NR_adjtimex 171
+#define __NR_getpid 172
+#define __NR_getppid 173
+#define __NR_getuid 174
+#define __NR_geteuid 175
+#define __NR_getgid 176
+#define __NR_getegid 177
+#define __NR_gettid 178
+#define __NR_sysinfo 179
+#define __NR_mq_open 180
+#define __NR_mq_unlink 181
+#define __NR_mq_timedsend 182
+#define __NR_mq_timedreceive 183
+#define __NR_mq_notify 184
+#define __NR_mq_getsetattr 185
+#define __NR_msgget 186
+#define __NR_msgctl 187
+#define __NR_msgrcv 188
+#define __NR_msgsnd 189
+#define __NR_semget 190
+#define __NR_semctl 191
+#define __NR_semtimedop 192
+#define __NR_semop 193
+#define __NR_shmget 194
+#define __NR_shmctl 195
+#define __NR_shmat 196
+#define __NR_shmdt 197
+#define __NR_socket 198
+#define __NR_socketpair 199
+#define __NR_bind 200
+#define __NR_listen 201
+#define __NR_accept 202
+#define __NR_connect 203
+#define __NR_getsockname 204
+#define __NR_getpeername 205
+#define __NR_sendto 206
+#define __NR_recvfrom 207
+#define __NR_setsockopt 208
+#define __NR_getsockopt 209
+#define __NR_shutdown 210
+#define __NR_sendmsg 211
+#define __NR_recvmsg 212
+#define __NR_readahead 213
+#define __NR_brk 214
+#define __NR_munmap 215
+#define __NR_mremap 216
+#define __NR_add_key 217
+#define __NR_request_key 218
+#define __NR_keyctl 219
+#define __NR_clone 220
+#define __NR_execve 221
+#define __NR3264_mmap 222
+#define __NR3264_fadvise64 223
+#define __NR_swapon 224
+#define __NR_swapoff 225
+#define __NR_mprotect 226
+#define __NR_msync 227
+#define __NR_mlock 228
+#define __NR_munlock 229
+#define __NR_mlockall 230
+#define __NR_munlockall 231
+#define __NR_mincore 232
+#define __NR_madvise 233
+#define __NR_remap_file_pages 234
+#define __NR_mbind 235
+#define __NR_get_mempolicy 236
+#define __NR_set_mempolicy 237
+#define __NR_migrate_pages 238
+#define __NR_move_pages 239
+#define __NR_rt_tgsigqueueinfo 240
+#define __NR_perf_event_open 241
+#define __NR_accept4 242
+#define __NR_recvmmsg 243
+#define __NR_arch_specific_syscall 244
+#define __NR_wait4 260
+#define __NR_prlimit64 261
+#define __NR_fanotify_init 262
+#define __NR_fanotify_mark 263
+#define __NR_name_to_handle_at 264
+#define __NR_open_by_handle_at 265
+#define __NR_clock_adjtime 266
+#define __NR_syncfs 267
+#define __NR_setns 268
+#define __NR_sendmmsg 269
+#define __NR_process_vm_readv 270
+#define __NR_process_vm_writev 271
+#define __NR_kcmp 272
+#define __NR_finit_module 273
+#define __NR_sched_setattr 274
+#define __NR_sched_getattr 275
+#define __NR_renameat2 276
+#define __NR_seccomp 277
+#define __NR_getrandom 278
+#define __NR_memfd_create 279
+#define __NR_bpf 280
+#define __NR_execveat 281
+#define __NR_userfaultfd 282
+#define __NR_membarrier 283
+#define __NR_mlock2 284
+#define __NR_copy_file_range 285
+#define __NR_preadv2 286
+#define __NR_pwritev2 287
+#define __NR_pkey_mprotect 288
+#define __NR_pkey_alloc 289
+#define __NR_pkey_free 290
+#define __NR_statx 291
+#define __NR_io_pgetevents 292
+#define __NR_rseq 293
+#define __NR_kexec_file_load 294
+#define __NR_pidfd_send_signal 424
+#define __NR_io_uring_setup 425
+#define __NR_io_uring_enter 426
+#define __NR_io_uring_register 427
+#define __NR_open_tree 428
+#define __NR_move_mount 429
+#define __NR_fsopen 430
+#define __NR_fsconfig 431
+#define __NR_fsmount 432
+#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
+#define __NR_close_range 436
+#define __NR_openat2 437
+#define __NR_pidfd_getfd 438
+#define __NR_faccessat2 439
+#define __NR_process_madvise 440
+#define __NR_fcntl __NR3264_fcntl
+#define __NR_statfs __NR3264_statfs
+#define __NR_fstatfs __NR3264_fstatfs
+#define __NR_truncate __NR3264_truncate
+#define __NR_ftruncate __NR3264_ftruncate
+#define __NR_lseek __NR3264_lseek
+#define __NR_sendfile __NR3264_sendfile
+#define __NR_mmap __NR3264_mmap
+#define __NR_fadvise64 __NR3264_fadvise64
diff --git a/arch/loongarch64/bits/user.h b/arch/loongarch64/bits/user.h
new file mode 100644
index 00000000..4d4cd534
--- /dev/null
+++ b/arch/loongarch64/bits/user.h
@@ -0,0 +1,5 @@
+#define ELF_NGREG 45
+#define ELF_NFPREG 33
+
+typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
+typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
new file mode 100644
index 00000000..c806a0bf
--- /dev/null
+++ b/arch/loongarch64/crt_arch.h
@@ -0,0 +1,14 @@
+__asm__(
+".text \n"
+".global " START "\n"
+".type " START ", @function\n"
+START ":\n"
+" add.w $fp, $r0,$r0\n"
+" or $a0, $sp, $zero\n"
+".weak _DYNAMIC\n"
+".hidden _DYNAMIC\n"
+" la.local $a1, _DYNAMIC\n"
+" addi.w $t7, $r0, -16\n"
+" and $sp, $sp, $t7\n"
+" b " START "_c\n"
+);
diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
new file mode 100644
index 00000000..95ee4c7a
--- /dev/null
+++ b/arch/loongarch64/pthread_arch.h
@@ -0,0 +1,13 @@
+static inline uintptr_t __get_tp()
+{
+ register uintptr_t tp __asm__("tp");
+ __asm__ ("" : "=r" (tp) );
+ return tp;
+}
+
+#define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
+
+#define DTP_OFFSET 0
+
+#define MC_PC pc
diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
new file mode 100644
index 00000000..2f759a34
--- /dev/null
+++ b/arch/loongarch64/reloc.h
@@ -0,0 +1,27 @@
+#ifdef __loongarch64_soft_float
+#define FP_SUFFIX "-sf"
+#else
+#define FP_SUFFIX ""
+#endif
+
+#define LDSO_ARCH "loongarch64" FP_SUFFIX
+
+#define TPOFF_K (0x0)
+
+#define REL_PLT R_LARCH_JUMP_SLOT
+#define REL_COPY R_LARCH_COPY
+#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
+#define REL_DTPOFF R_LARCH_TLS_DTPREL64
+#define REL_TPOFF R_LARCH_TLS_TPREL64
+#define REL_RELATIVE R_LARCH_RELATIVE
+#define REL_SYMBOLIC R_LARCH_64
+
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+ "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+ ".hidden " #sym "\n" \
+ ".align 8 \n" \
+ " la.local $t1, "#sym" \n" \
+ " or %0, $t1, $zero \n" \
+ : "=r"(*(fp)) : : "memory" )
diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
new file mode 100644
index 00000000..ddd29578
--- /dev/null
+++ b/arch/loongarch64/syscall_arch.h
@@ -0,0 +1,137 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define SYSCALL_CLOBBERLIST \
+ "$t0", "$t1", "$t2", "$t3", \
+ "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
+
+static inline long __syscall0(long n)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0");
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "=r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall1(long n, long a)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+ register long a6 __asm__("$a6") = g;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
+
+#define IPC_64 0
diff --git a/configure b/configure
index 6f5453f5..aac0c467 100755
--- a/configure
+++ b/configure
@@ -338,6 +338,7 @@ powerpc*|ppc*) ARCH=powerpc ;;
riscv64*) ARCH=riscv64 ;;
sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
s390x*) ARCH=s390x ;;
+loongarch64*) ARCH=loongarch64 ;;
unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;;
*) fail "$0: unknown or unsupported target \"$target\"" ;;
esac
diff --git a/crt/loongarch64/crti.s b/crt/loongarch64/crti.s
new file mode 100644
index 00000000..96a754d3
--- /dev/null
+++ b/crt/loongarch64/crti.s
@@ -0,0 +1,15 @@
+.section .init
+.global _init
+_init:
+ addi.d $r3,$r3,-16
+ st.d $fp,$r3,0
+ st.d $ra,$r3,8
+ addi.d $fp,$r3,16
+
+.section .fini
+.global _fini
+_fini:
+ addi.d $r3,$r3,-16
+ st.d $fp,$r3,0
+ st.d $ra,$r3,8
+ addi.d $fp,$r3,16
diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
new file mode 100644
index 00000000..bffb18f4
--- /dev/null
+++ b/crt/loongarch64/crtn.s
@@ -0,0 +1,12 @@
+.section .init
+ ld.d $fp,$r3,0
+ ld.d $ra,$r3,8
+ addi.d $r3,$r3,16
+ jirl $r0,$ra,0
+
+
+.section .fini
+ ld.d $fp,$r3,0
+ ld.d $ra,$r3,8
+ addi.d $r3,$r3,16
+ jirl $r0,$ra,0
diff --git a/include/elf.h b/include/elf.h
index 86e2f0bb..69b01ff4 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -697,6 +697,11 @@ typedef struct {
#define NT_MIPS_FP_MODE 0x801
#define NT_MIPS_MSA 0x802
#define NT_VERSION 1
+#define NT_LOONGARCH_CPUCFG 0xa00
+#define NT_LOONGARCH_CSR 0xa01
+#define NT_LOONGARCH_LSX 0xa02
+#define NT_LOONGARCH_LASX 0xa03
+#define NT_LOONGARCH_LBT 0xa04
@@ -3288,6 +3293,67 @@ enum
#define R_RISCV_SET32 56
#define R_RISCV_32_PCREL 57
+/* LoongISA ELF Flags */
+#define EM_LOONGARCH 258
+
+#define EF_LARCH_ABI 0x0003
+#define EF_LARCH_ABI_LP64 0x0003
+#define EF_LARCH_ABI_LP32 0x0001
+
+/* Loongarch specific dynamic relocations. */
+#define R_LARCH_NONE 0
+#define R_LARCH_32 1
+#define R_LARCH_64 2
+#define R_LARCH_RELATIVE 3
+#define R_LARCH_COPY 4
+#define R_LARCH_JUMP_SLOT 5
+#define R_LARCH_TLS_DTPMOD32 6
+#define R_LARCH_TLS_DTPMOD64 7
+#define R_LARCH_TLS_DTPREL32 8
+#define R_LARCH_TLS_DTPREL64 9
+#define R_LARCH_TLS_TPREL32 10
+#define R_LARCH_TLS_TPREL64 11
+#define R_LARCH_IRELATIVE 12
+#define R_LARCH_MARK_LA 20
+#define R_LARCH_MARK_PCREL 21
+#define R_LARCH_SOP_PUSH_PCREL 22
+#define R_LARCH_SOP_PUSH_ABSOLUTE 23
+#define R_LARCH_SOP_PUSH_DUP 24
+#define R_LARCH_SOP_PUSH_GPREL 25
+#define R_LARCH_SOP_PUSH_TLS_TPREL 26
+#define R_LARCH_SOP_PUSH_TLS_GOT 27
+#define R_LARCH_SOP_PUSH_TLS_GD 28
+#define R_LARCH_SOP_PUSH_PLT_PCREL 29
+#define R_LARCH_SOP_ASSERT 30
+#define R_LARCH_SOP_NOT 31
+#define R_LARCH_SOP_SUB 32
+#define R_LARCH_SOP_SL 33
+#define R_LARCH_SOP_SR 34
+#define R_LARCH_SOP_ADD 35
+#define R_LARCH_SOP_AND 36
+#define R_LARCH_SOP_IF_ELSE 37
+#define R_LARCH_SOP_POP_32_S_10_5 38
+#define R_LARCH_SOP_POP_32_U_10_12 39
+#define R_LARCH_SOP_POP_32_S_10_12 40
+#define R_LARCH_SOP_POP_32_S_10_16 41
+#define R_LARCH_SOP_POP_32_S_10_16_S2 42
+#define R_LARCH_SOP_POP_32_S_5_20 43
+#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
+#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
+#define R_LARCH_SOP_POP_32_U 46
+#define R_LARCH_ADD8 47
+#define R_LARCH_ADD16 48
+#define R_LARCH_ADD24 49
+#define R_LARCH_ADD32 50
+#define R_LARCH_ADD64 51
+#define R_LARCH_SUB8 52
+#define R_LARCH_SUB16 53
+#define R_LARCH_SUB24 54
+#define R_LARCH_SUB32 55
+#define R_LARCH_SUB64 56
+#define R_LARCH_GNU_VTINHERIT 57
+#define R_LARCH_GNU_VTENTRY 58
+
#ifdef __cplusplus
}
#endif
diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
new file mode 100644
index 00000000..049234be
--- /dev/null
+++ b/src/fenv/loongarch64/fenv.S
@@ -0,0 +1,72 @@
+#ifndef __loongarch_soft_float
+
+.global feclearexcept
+.type feclearexcept,@function
+feclearexcept:
+ li.w $a1, 0x1f0000 //flags in 16-20 bit of fcsr0.
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ xor $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global feraiseexcept
+.type feraiseexcept,@function
+feraiseexcept:
+ li.w $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fetestexcept
+.type fetestexcept,@function
+fetestexcept:
+ li.w $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ and $v0, $a1, $a0
+ jirl $zero, $ra, 0
+
+.global fegetround
+.type fegetround,@function
+fegetround:
+ movfcsr2gr $v0, $r0
+ andi $v0, $v0, 0x300 //fcsr0.RM
+ jirl $zero, $ra, 0
+
+.global __fesetround
+.hidden __fesetround
+.type __fesetround,@function
+__fesetround:
+ movfcsr2gr $a1, $r0
+ li.w $a2, -769 //0xfffffcff
+ and $a1, $a1, $a2
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fegetenv
+.type fegetenv,@function
+fegetenv:
+ movfcsr2gr $a1, $r0
+ st.w $a1, $a0, 0
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fesetenv
+.type fesetenv,@function
+fesetenv:
+ addi.d $a1, $a0, 1
+ beq $a1, $r0, 1f
+ ld.w $a1, $a0, 0
+1: movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+#endif
diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
new file mode 100644
index 00000000..5f51ed85
--- /dev/null
+++ b/src/ldso/loongarch64/dlsym.s
@@ -0,0 +1,7 @@
+.global dlsym
+.hidden __dlsym
+.type dlsym,@function
+dlsym:
+ move $a2, $ra
+ la.global $r16, __dlsym
+ jirl $r0, $r16, 0
diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
new file mode 100644
index 00000000..41d897ed
--- /dev/null
+++ b/src/setjmp/loongarch64/longjmp.S
@@ -0,0 +1,37 @@
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+ add.d $t5, $a0, $zero
+ add.d $v0, $a1, $zero
+
+ bne $v0, $zero, 1f
+ addi.d $v0, $v0, 1
+
+1:
+ ld.d $ra, $t5, 0
+ ld.d $sp, $t5, 8
+ ld.d $r21,$t5, 16
+ ld.d $fp, $t5, 24
+ ld.d $s0, $t5, 32
+ ld.d $s1, $t5, 40
+ ld.d $s2, $t5, 48
+ ld.d $s3, $t5, 56
+ ld.d $s4, $t5, 64
+ ld.d $s5, $t5, 72
+ ld.d $s6, $t5, 80
+ ld.d $s7, $t5, 88
+ ld.d $s8, $t5, 96
+#ifndef __loongarch64_soft_float
+ fld.d $fs0, $t5, 104
+ fld.d $fs1, $t5, 112
+ fld.d $fs2, $t5, 120
+ fld.d $fs3, $t5, 128
+ fld.d $fs4, $t5, 136
+ fld.d $fs5, $t5, 144
+ fld.d $fs6, $t5, 152
+ fld.d $fs7, $t5, 160
+#endif
+ jirl $zero, $ra, 0
diff --git a/src/setjmp/loongarch64/setjmp.S b/src/setjmp/loongarch64/setjmp.S
new file mode 100644
index 00000000..8dca3cb8
--- /dev/null
+++ b/src/setjmp/loongarch64/setjmp.S
@@ -0,0 +1,34 @@
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+ st.d $ra, $a0, 0
+ st.d $sp, $a0, 8
+ st.d $r21,$a0, 16
+ st.d $fp, $a0, 24
+ st.d $s0, $a0, 32
+ st.d $s1, $a0, 40
+ st.d $s2, $a0, 48
+ st.d $s3, $a0, 56
+ st.d $s4, $a0, 64
+ st.d $s5, $a0, 72
+ st.d $s6, $a0, 80
+ st.d $s7, $a0, 88
+ st.d $s8, $a0, 96
+#ifndef __loongarch64_soft_float
+ fst.d $fs0, $a0, 104
+ fst.d $fs1, $a0, 112
+ fst.d $fs2, $a0, 120
+ fst.d $fs3, $a0, 128
+ fst.d $fs4, $a0, 136
+ fst.d $fs5, $a0, 144
+ fst.d $fs6, $a0, 152
+ fst.d $fs7, $a0, 160
+#endif
+ xor $v0, $v0, $v0
+ jirl $zero, $ra, 0
diff --git a/src/signal/loongarch64/restore.s b/src/signal/loongarch64/restore.s
new file mode 100644
index 00000000..9bf015a0
--- /dev/null
+++ b/src/signal/loongarch64/restore.s
@@ -0,0 +1,10 @@
+.global __restore_rt
+.global __restore
+.hidden __restore_rt
+.hidden __restore
+.type __restore_rt,@function
+.type __restore,@function
+__restore_rt:
+__restore:
+ ori $a7, $zero, 139
+ syscall 0
diff --git a/src/signal/loongarch64/sigsetjmp.s b/src/signal/loongarch64/sigsetjmp.s
new file mode 100644
index 00000000..d53f334a
--- /dev/null
+++ b/src/signal/loongarch64/sigsetjmp.s
@@ -0,0 +1,29 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+ or $t5, $a0, $zero
+ or $t6, $a1, $zero
+
+ # comparing save mask with 0, if equals to 0 then
+ # sigsetjmp is equal to setjmp.
+ beq $t6, $zero, 1f
+ st.d $ra, $t5, 168
+
+ # save base of got so that we can use it later
+ # once we return from 'longjmp'
+ la.global $t8, setjmp
+ jirl $ra, $t8, 0
+
+ or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
+ ld.d $ra, $t5, 168 # Restore ra of sigsetjmp
+ or $a0, $t5, $zero
+
+.hidden __sigsetjmp_tail
+ la.global $t8, __sigsetjmp_tail
+ jirl $zero, $t8, 0
+1:
+ la.global $t8, setjmp
+ jirl $zero, $t8, 0
diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
new file mode 100644
index 00000000..421cd381
--- /dev/null
+++ b/src/thread/loongarch64/__set_thread_area.s
@@ -0,0 +1,7 @@
+.global __set_thread_area
+.hidden __set_thread_area
+.type __set_thread_area,@function
+__set_thread_area:
+ or $tp, $a0, $zero
+ ori $a0, $zero, 0
+ jirl $zero, $ra, 0
diff --git a/src/thread/loongarch64/__unmapself.s b/src/thread/loongarch64/__unmapself.s
new file mode 100644
index 00000000..b77e6d1d
--- /dev/null
+++ b/src/thread/loongarch64/__unmapself.s
@@ -0,0 +1,7 @@
+.global __unmapself
+.type __unmapself, @function
+__unmapself:
+ li.d $a7, 215
+ syscall 0 # call munmap
+ li.d $a7, 93
+ syscall 0 # call exit
diff --git a/src/thread/loongarch64/clone.s b/src/thread/loongarch64/clone.s
new file mode 100644
index 00000000..ec920c7b
--- /dev/null
+++ b/src/thread/loongarch64/clone.s
@@ -0,0 +1,47 @@
+#__clone(func, stack, flags, arg, ptid, tls, ctid)
+# a0, a1, a2, a3, a4, a5, a6
+# sys_clone3(struct clone_args *cl_args, size_t size)
+# a0 a1
+
+.global __clone
+.hidden __clone
+.type __clone,@function
+__clone:
+ # Save function pointer and argument pointer on new thread stack
+ addi.d $a1, $a1, -16
+ st.d $a0, $a1, 0 # save function pointer
+ st.d $a3, $a1, 8 # save argument pointer
+
+ li.d $t0, ~0x004000ff # mask CSIGNAL and CLONE_DETACHED
+ and $t1, $a2, $t0 # cl_args.flags
+ li.d $t0, 0x000000ff # CSIGNAL
+ and $t2, $a2, $t0 # cl_args.exit_signal
+
+ bstrins.d $sp, $zero, 2, 0 # align stack to 8 bytes
+ addi.d $sp, $sp, -88 # struct clone_args
+ st.d $t1, $sp, 0 # flags
+ st.d $a4, $sp, 8 # pidfd
+ st.d $a6, $sp, 16 # child_tid
+ st.d $a4, $sp, 24 # parent_tid
+ st.d $t2, $sp, 32 # exit_signal
+ st.d $a1, $sp, 40 # stack
+ st.d $zero, $sp, 48 # stack_size
+ st.d $a5, $sp, 56 # tls
+ st.d $zero, $sp, 64 # set_tid
+ st.d $zero, $sp, 72 # set_tid_size
+ st.d $zero, $sp, 80 # cgroup
+
+ move $a0, $sp
+ li.d $a1, 88
+ li.d $a7, 435 # __NR_clone3
+ syscall 0 # call clone3
+
+ beqz $a0, 1f # whether child process
+ addi.d $sp, $sp, 88
+ jirl $zero, $ra, 0 # parent process return
+1:
+ ld.d $t8, $sp, 0 # function pointer
+ ld.d $a0, $sp, 8 # argument pointer
+ jirl $ra, $t8, 0 # call the user's function
+ li.d $a7, 93
+ syscall 0 # child process exit
diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
new file mode 100644
index 00000000..3903ed2c
--- /dev/null
+++ b/src/thread/loongarch64/syscall_cp.s
@@ -0,0 +1,29 @@
+.global __cp_begin
+.hidden __cp_begin
+.global __cp_end
+.hidden __cp_end
+.global __cp_cancel
+.hidden __cp_cancel
+.hidden __cancel
+.global __syscall_cp_asm
+.hidden __syscall_cp_asm
+.type __syscall_cp_asm,@function
+
+__syscall_cp_asm:
+__cp_begin:
+ ld.w $a0, $a0, 0
+ bnez $a0, __cp_cancel
+ or $t8, $a1, $zero # reserve system call number
+ or $a0, $a2, $zero
+ or $a1, $a3, $zero
+ or $a2, $a4, $zero
+ or $a3, $a5, $zero
+ or $a4, $a6, $zero
+ or $a5, $a7, $zero
+ or $a7, $t8, $zero
+ syscall 0
+__cp_end:
+ jirl $zero, $ra, 0
+__cp_cancel:
+ la.local $t8, __cancel
+ jirl $zero, $t8, 0
--
2.34.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [musl] Re: add loongarch64 port v4
2022-06-23 1:30 ` 王洪亮
@ 2022-06-23 1:59 ` Rich Felker
2022-07-05 12:56 ` 王洪亮
0 siblings, 1 reply; 7+ messages in thread
From: Rich Felker @ 2022-06-23 1:59 UTC (permalink / raw)
To: 王洪亮; +Cc: musl
Hi. I just haven't gotten to reviewing it again. I'll try to take a
good look in the next day or two.
On Thu, Jun 23, 2022 at 09:30:55AM +0800, 王洪亮 wrote:
> Hi, Rich
>
> this patch has any other problems need to be modified?
>
> Looking forward to your reply. thanks.
>
>
> Hongliang Wang
>
> 在 2022/6/20 下午5:49, 王洪亮 写道:
> >Hi, Rich
> >
> >1. this patch has any other problems need to be modified?
> >
> >2.what are the suggestions for support LA32 later?
> >
> >
> >在 2022/6/14 下午3:23, 王洪亮 写道:
> >>Hi,
> >>
> >>1. this patch has any other problems need to be modified?
> >>
> >>2.what are the suggestions for support LA32?
> >>
> >>
> >>在 2022/6/8 上午11:56, 王洪亮 写道:
> >>>Hi,
> >>>
> >>>I published loongarch64 port v4 in
> >>>https://github.com/loongson/musl/tree/loongarch-v2.0.
> >>>
> >>>fixed the following problems:
> >>>
> >>>1.fixed the extension field of struct mcontext
> >>>
> >>>2.removed arch/loongarch64/kstat.h
> >>>
> >>>3.deleted the incorrect definition in arch/loongarch64/reloc.h
> >>>
> >>>4.optimize dlsym
> >>>
> >>>please code review if there are any other problems ? thanks.
> >>>
> >>>I have one questions:
> >>>
> >>>Through add "long__uc_pad" in struct ucontext_t to meet the
> >>>extcontext[] 16 bytes alignment,
> >>>
> >>>if run in loongarch32, this method not meet the 16 bytes
> >>>alignment requirement. how to do it ?
> >>>
> >>>
> >>>Hongliang Wang.
> >>>
> >From 5535c500f137c3cb9ad36c7c96e7aaca440c85bd Mon Sep 17 00:00:00 2001
> From: wanghongliang <wanghongliang@loongson.cn>
> Date: Wed, 8 Jun 2022 01:42:12 +0800
> Subject: [PATCH] add loongarch64 port v4.
>
> Author: xiaojuanZhai <zhaixiaojuan@loongson.cn>
> Author: meidanLi <limeidan@loongson.cn>
> Author: guoqiChen <chenguoqi@loongson.cn>
> Author: xiaolinZhao <zhaoxiaolin@loongson.cn>
> Author: Fanpeng <fanpeng@loongson.cn>
> Author: jiantaoShan <shanjiantao@loongson.cn>
> Author: xuhuiQiang <qiangxuhui@loongson.cn>
> Author: jingyunHua <huajingyun@loongson.cn>
> Author: liuxue <liuxue@loongson.cn>
> Author: wanghongliang <wanghongliang@loongson.cn
>
> Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
> ---
> arch/loongarch64/atomic_arch.h | 53 ++++
> arch/loongarch64/bits/alltypes.h.in | 18 ++
> arch/loongarch64/bits/fenv.h | 20 ++
> arch/loongarch64/bits/float.h | 16 ++
> arch/loongarch64/bits/hwcap.h | 14 +
> arch/loongarch64/bits/posix.h | 2 +
> arch/loongarch64/bits/ptrace.h | 4 +
> arch/loongarch64/bits/reg.h | 66 +++++
> arch/loongarch64/bits/setjmp.h | 1 +
> arch/loongarch64/bits/signal.h | 80 ++++++
> arch/loongarch64/bits/stat.h | 18 ++
> arch/loongarch64/bits/stdint.h | 20 ++
> arch/loongarch64/bits/syscall.h.in | 303 +++++++++++++++++++++
> arch/loongarch64/bits/user.h | 5 +
> arch/loongarch64/crt_arch.h | 14 +
> arch/loongarch64/pthread_arch.h | 13 +
> arch/loongarch64/reloc.h | 27 ++
> arch/loongarch64/syscall_arch.h | 137 ++++++++++
> configure | 1 +
> crt/loongarch64/crti.s | 15 +
> crt/loongarch64/crtn.s | 12 +
> include/elf.h | 66 +++++
> src/fenv/loongarch64/fenv.S | 72 +++++
> src/ldso/loongarch64/dlsym.s | 7 +
> src/setjmp/loongarch64/longjmp.S | 37 +++
> src/setjmp/loongarch64/setjmp.S | 34 +++
> src/signal/loongarch64/restore.s | 10 +
> src/signal/loongarch64/sigsetjmp.s | 29 ++
> src/thread/loongarch64/__set_thread_area.s | 7 +
> src/thread/loongarch64/__unmapself.s | 7 +
> src/thread/loongarch64/clone.s | 47 ++++
> src/thread/loongarch64/syscall_cp.s | 29 ++
> 32 files changed, 1184 insertions(+)
> create mode 100644 arch/loongarch64/atomic_arch.h
> create mode 100644 arch/loongarch64/bits/alltypes.h.in
> create mode 100644 arch/loongarch64/bits/fenv.h
> create mode 100644 arch/loongarch64/bits/float.h
> create mode 100644 arch/loongarch64/bits/hwcap.h
> create mode 100644 arch/loongarch64/bits/posix.h
> create mode 100644 arch/loongarch64/bits/ptrace.h
> create mode 100644 arch/loongarch64/bits/reg.h
> create mode 100644 arch/loongarch64/bits/setjmp.h
> create mode 100644 arch/loongarch64/bits/signal.h
> create mode 100644 arch/loongarch64/bits/stat.h
> create mode 100644 arch/loongarch64/bits/stdint.h
> create mode 100644 arch/loongarch64/bits/syscall.h.in
> create mode 100644 arch/loongarch64/bits/user.h
> create mode 100644 arch/loongarch64/crt_arch.h
> create mode 100644 arch/loongarch64/pthread_arch.h
> create mode 100644 arch/loongarch64/reloc.h
> create mode 100644 arch/loongarch64/syscall_arch.h
> create mode 100644 crt/loongarch64/crti.s
> create mode 100644 crt/loongarch64/crtn.s
> create mode 100644 src/fenv/loongarch64/fenv.S
> create mode 100644 src/ldso/loongarch64/dlsym.s
> create mode 100644 src/setjmp/loongarch64/longjmp.S
> create mode 100644 src/setjmp/loongarch64/setjmp.S
> create mode 100644 src/signal/loongarch64/restore.s
> create mode 100644 src/signal/loongarch64/sigsetjmp.s
> create mode 100644 src/thread/loongarch64/__set_thread_area.s
> create mode 100644 src/thread/loongarch64/__unmapself.s
> create mode 100644 src/thread/loongarch64/clone.s
> create mode 100644 src/thread/loongarch64/syscall_cp.s
>
> diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
> new file mode 100644
> index 00000000..bf4805c9
> --- /dev/null
> +++ b/arch/loongarch64/atomic_arch.h
> @@ -0,0 +1,53 @@
> +#define a_ll a_ll
> +static inline int a_ll(volatile int *p)
> +{
> + int v;
> + __asm__ __volatile__ (
> + "ll.w %0, %1"
> + : "=r"(v)
> + : "ZC"(*p));
> + return v;
> +}
> +
> +#define a_sc a_sc
> +static inline int a_sc(volatile int *p, int v)
> +{
> + int r;
> + __asm__ __volatile__ (
> + "sc.w %0, %1"
> + : "=r"(r), "=ZC"(*p)
> + : "0"(v) : "memory");
> + return r;
> +}
> +
> +#define a_ll_p a_ll_p
> +static inline void *a_ll_p(volatile void *p)
> +{
> + void *v;
> + __asm__ __volatile__ (
> + "ll.d %0, %1"
> + : "=r"(v)
> + : "ZC"(*(void *volatile *)p));
> + return v;
> +}
> +
> +#define a_sc_p a_sc_p
> +static inline int a_sc_p(volatile void *p, void *v)
> +{
> + long r;
> + __asm__ __volatile__ (
> + "sc.d %0, %1"
> + : "=r"(r), "=ZC"(*(void *volatile *)p)
> + : "0"(v)
> + : "memory");
> + return r;
> +}
> +
> +#define a_barrier a_barrier
> +static inline void a_barrier()
> +{
> + __asm__ __volatile__ ("dbar 0" : : : "memory");
> +}
> +
> +#define a_pre_llsc a_barrier
> +#define a_post_llsc a_barrier
> diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
> new file mode 100644
> index 00000000..d1807aca
> --- /dev/null
> +++ b/arch/loongarch64/bits/alltypes.h.in
> @@ -0,0 +1,18 @@
> +#define _Addr long
> +#define _Int64 long
> +#define _Reg long
> +
> +#define __BYTE_ORDER 1234
> +#define __LONG_MAX 0x7fffffffffffffffL
> +
> +#ifndef __cplusplus
> +TYPEDEF int wchar_t;
> +#endif
> +
> +TYPEDEF float float_t;
> +TYPEDEF double double_t;
> +
> +TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
> +
> +TYPEDEF unsigned nlink_t;
> +TYPEDEF int blksize_t;
> diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
> new file mode 100644
> index 00000000..264cafb5
> --- /dev/null
> +++ b/arch/loongarch64/bits/fenv.h
> @@ -0,0 +1,20 @@
> +#define FE_INEXACT 0x010000
> +#define FE_UNDERFLOW 0x020000
> +#define FE_OVERFLOW 0x040000
> +#define FE_DIVBYZERO 0x080000
> +#define FE_INVALID 0x100000
> +
> +#define FE_ALL_EXCEPT 0x1F0000
> +
> +#define FE_TONEAREST 0x000
> +#define FE_TOWARDZERO 0x100
> +#define FE_UPWARD 0x200
> +#define FE_DOWNWARD 0x300
> +
> +typedef unsigned fexcept_t;
> +
> +typedef struct {
> + unsigned __cw;
> +} fenv_t;
> +
> +#define FE_DFL_ENV ((const fenv_t *) -1)
> diff --git a/arch/loongarch64/bits/float.h b/arch/loongarch64/bits/float.h
> new file mode 100644
> index 00000000..719c7908
> --- /dev/null
> +++ b/arch/loongarch64/bits/float.h
> @@ -0,0 +1,16 @@
> +#define FLT_EVAL_METHOD 0
> +
> +#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
> +#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
> +#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
> +#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
> +
> +#define LDBL_MANT_DIG 113
> +#define LDBL_MIN_EXP (-16381)
> +#define LDBL_MAX_EXP 16384
> +
> +#define LDBL_DIG 33
> +#define LDBL_MIN_10_EXP (-4931)
> +#define LDBL_MAX_10_EXP 4932
> +
> +#define DECIMAL_DIG 36
> diff --git a/arch/loongarch64/bits/hwcap.h b/arch/loongarch64/bits/hwcap.h
> new file mode 100644
> index 00000000..c9fa08f6
> --- /dev/null
> +++ b/arch/loongarch64/bits/hwcap.h
> @@ -0,0 +1,14 @@
> +/* HWCAP - Hardware Capabilities.
> + * Hardware information is not clear at present, leave it blank.
> + */
> +#define HWCAP_LOONGARCH_CPUCFG (1 << 0)
> +#define HWCAP_LOONGARCH_FPU (1 << 1)
> +#define HWCAP_LOONGARCH_LSX (1 << 2) /* support 128bit vectors*/
> +#define HWCAP_LOONGARCH_LASX (1 << 3) /* support 256bit vectors*/
> +#define HWCAP_LOONGARCH_LBT (1 << 4) /* support LBT*/
> +#define HWCAP_LOONGARCH_LVZ (1 << 5) /* support virtualization expansion*/
> +#define HWCAP_LOONGARCH_CRC32 (1 << 7) /* support CRC32 check*/
> +#define HWCAP_LOONGARCH_AES (1 << 6)
> +#define HWCAP_LOONGARCH_SHA1 (1 << 8)
> +#define HWCAP_LOONGARCH_SHA2 (1 << 9)
> +#define HWCAP_LOONGARCH_SHA3 (1 << 10)
> diff --git a/arch/loongarch64/bits/posix.h b/arch/loongarch64/bits/posix.h
> new file mode 100644
> index 00000000..8068ce98
> --- /dev/null
> +++ b/arch/loongarch64/bits/posix.h
> @@ -0,0 +1,2 @@
> +#define _POSIX_V6_LP64_OFF64 1
> +#define _POSIX_V7_LP64_OFF64 1
> diff --git a/arch/loongarch64/bits/ptrace.h b/arch/loongarch64/bits/ptrace.h
> new file mode 100644
> index 00000000..741fc668
> --- /dev/null
> +++ b/arch/loongarch64/bits/ptrace.h
> @@ -0,0 +1,4 @@
> +#define PTRACE_GET_THREAD_AREA 25
> +#define PTRACE_SET_THREAD_AREA 26
> +#define PTRACE_GET_WATCH_REGS 0xd0
> +#define PTRACE_SET_WATCH_REGS 0xd1
> diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
> new file mode 100644
> index 00000000..5d3f92c5
> --- /dev/null
> +++ b/arch/loongarch64/bits/reg.h
> @@ -0,0 +1,66 @@
> +#undef __WORDSIZE
> +#define __WORDSIZE 64
> +#define LOONGARCH64_EF_R0 0
> +#define LOONGARCH64_EF_R1 1
> +#define LOONGARCH64_EF_R2 2
> +#define LOONGARCH64_EF_R3 3
> +#define LOONGARCH64_EF_R4 4
> +#define LOONGARCH64_EF_R5 5
> +#define LOONGARCH64_EF_R6 6
> +#define LOONGARCH64_EF_R7 7
> +#define LOONGARCH64_EF_R8 8
> +#define LOONGARCH64_EF_R9 9
> +#define LOONGARCH64_EF_R10 10
> +#define LOONGARCH64_EF_R11 11
> +#define LOONGARCH64_EF_R12 12
> +#define LOONGARCH64_EF_R13 13
> +#define LOONGARCH64_EF_R14 14
> +#define LOONGARCH64_EF_R15 15
> +#define LOONGARCH64_EF_R16 16
> +#define LOONGARCH64_EF_R17 17
> +#define LOONGARCH64_EF_R18 18
> +#define LOONGARCH64_EF_R19 19
> +#define LOONGARCH64_EF_R20 20
> +#define LOONGARCH64_EF_R21 21
> +#define LOONGARCH64_EF_R22 22
> +#define LOONGARCH64_EF_R23 23
> +#define LOONGARCH64_EF_R24 24
> +#define LOONGARCH64_EF_R25 25
> +#define LOONGARCH64_EF_R26 26
> +#define LOONGARCH64_EF_R27 27
> +#define LOONGARCH64_EF_R28 28
> +#define LOONGARCH64_EF_R29 29
> +#define LOONGARCH64_EF_R30 30
> +#define LOONGARCH64_EF_R31 31
> +
> +#define LOONGARCH64_EF_SIZE 304 /* size in bytes */
> +
> +#define EF_R0 LOONGARCH64_EF_R0
> +#define EF_R1 LOONGARCH64_EF_R1
> +#define EF_R2 LOONGARCH64_EF_R2
> +#define EF_R3 LOONGARCH64_EF_R3
> +#define EF_R4 LOONGARCH64_EF_R4
> +#define EF_R5 LOONGARCH64_EF_R5
> +#define EF_R6 LOONGARCH64_EF_R6
> +#define EF_R7 LOONGARCH64_EF_R7
> +#define EF_R8 LOONGARCH64_EF_R8
> +#define EF_R9 LOONGARCH64_EF_R9
> +#define EF_R10 LOONGARCH64_EF_R10
> +#define EF_R11 LOONGARCH64_EF_R11
> +#define EF_R12 LOONGARCH64_EF_R12
> +#define EF_R13 LOONGARCH64_EF_R13
> +#define EF_R14 LOONGARCH64_EF_R14
> +#define EF_R15 LOONGARCH64_EF_R15
> +#define EF_R16 LOONGARCH64_EF_R16
> +#define EF_R17 LOONGARCH64_EF_R17
> +#define EF_R18 LOONGARCH64_EF_R18
> +#define EF_R19 LOONGARCH64_EF_R19
> +#define EF_R20 LOONGARCH64_EF_R20
> +#define EF_R21 LOONGARCH64_EF_R21
> +#define EF_R22 LOONGARCH64_EF_R22
> +#define EF_R23 LOONGARCH64_EF_R23
> +#define EF_R24 LOONGARCH64_EF_R24
> +#define EF_R25 LOONGARCH64_EF_R25
> +#define EF_R26 LOONGARCH64_EF_R26
> +#define EF_R27 LOONGARCH64_EF_R27
> +#define EF_R28 LOONGARCH64_EF_R28
> diff --git a/arch/loongarch64/bits/setjmp.h b/arch/loongarch64/bits/setjmp.h
> new file mode 100644
> index 00000000..f4a7f8a3
> --- /dev/null
> +++ b/arch/loongarch64/bits/setjmp.h
> @@ -0,0 +1 @@
> +typedef unsigned long long __jmp_buf[22];
> diff --git a/arch/loongarch64/bits/signal.h b/arch/loongarch64/bits/signal.h
> new file mode 100644
> index 00000000..4db790e7
> --- /dev/null
> +++ b/arch/loongarch64/bits/signal.h
> @@ -0,0 +1,80 @@
> +#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
> + || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
> +
> +#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
> +#define MINSIGSTKSZ 4096
> +#define SIGSTKSZ 16384
> +#endif
> +
> +typedef unsigned long greg_t, gregset_t[32];
> +
> +typedef struct sigcontext {
> + unsigned long pc;
> + gregset_t gregs;
> + unsigned int flags;
> + unsigned long extcontext[];
> +} mcontext_t;
> +
> +struct sigaltstack {
> + void *ss_sp;
> + int ss_flags;
> + size_t ss_size;
> +};
> +
> +typedef struct __ucontext
> +{
> + unsigned long uc_flags;
> + struct __ucontext *uc_link;
> + stack_t uc_stack;
> + sigset_t uc_sigmask;
> + long __uc_pad;
> + mcontext_t uc_mcontext;
> +} ucontext_t;
> +
> +#define SA_NOCLDSTOP 1
> +#define SA_NOCLDWAIT 2
> +#define SA_SIGINFO 4
> +#define SA_ONSTACK 0x08000000
> +#define SA_RESTART 0x10000000
> +#define SA_NODEFER 0x40000000
> +#define SA_RESETHAND 0x80000000
> +#define SA_RESTORER 0x04000000
> +
> +#endif
> +
> +#define SIGHUP 1
> +#define SIGINT 2
> +#define SIGQUIT 3
> +#define SIGILL 4
> +#define SIGTRAP 5
> +#define SIGABRT 6
> +#define SIGIOT SIGABRT
> +#define SIGBUS 7
> +#define SIGFPE 8
> +#define SIGKILL 9
> +#define SIGUSR1 10
> +#define SIGSEGV 11
> +#define SIGUSR2 12
> +#define SIGPIPE 13
> +#define SIGALRM 14
> +#define SIGTERM 15
> +#define SIGSTKFLT 16
> +#define SIGCHLD 17
> +#define SIGCONT 18
> +#define SIGSTOP 19
> +#define SIGTSTP 20
> +#define SIGTTIN 21
> +#define SIGTTOU 22
> +#define SIGURG 23
> +#define SIGXCPU 24
> +#define SIGXFSZ 25
> +#define SIGVTALRM 26
> +#define SIGPROF 27
> +#define SIGWINCH 28
> +#define SIGIO 29
> +#define SIGPOLL SIGIO
> +#define SIGPWR 30
> +#define SIGSYS 31
> +#define SIGUNUSED SIGSYS
> +
> +#define _NSIG 65
> diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
> new file mode 100644
> index 00000000..b7f4221b
> --- /dev/null
> +++ b/arch/loongarch64/bits/stat.h
> @@ -0,0 +1,18 @@
> +struct stat {
> + dev_t st_dev;
> + ino_t st_ino;
> + mode_t st_mode;
> + nlink_t st_nlink;
> + uid_t st_uid;
> + gid_t st_gid;
> + dev_t st_rdev;
> + unsigned long __pad;
> + off_t st_size;
> + blksize_t st_blksize;
> + int __pad2;
> + blkcnt_t st_blocks;
> + struct timespec st_atim;
> + struct timespec st_mtim;
> + struct timespec st_ctim;
> + unsigned __unused[2];
> +};
> diff --git a/arch/loongarch64/bits/stdint.h b/arch/loongarch64/bits/stdint.h
> new file mode 100644
> index 00000000..1bb147f2
> --- /dev/null
> +++ b/arch/loongarch64/bits/stdint.h
> @@ -0,0 +1,20 @@
> +typedef int32_t int_fast16_t;
> +typedef int32_t int_fast32_t;
> +typedef uint32_t uint_fast16_t;
> +typedef uint32_t uint_fast32_t;
> +
> +#define INT_FAST16_MIN INT32_MIN
> +#define INT_FAST32_MIN INT32_MIN
> +
> +#define INT_FAST16_MAX INT32_MAX
> +#define INT_FAST32_MAX INT32_MAX
> +
> +#define UINT_FAST16_MAX UINT32_MAX
> +#define UINT_FAST32_MAX UINT32_MAX
> +
> +#define INTPTR_MIN INT64_MIN
> +#define INTPTR_MAX INT64_MAX
> +#define UINTPTR_MAX UINT64_MAX
> +#define PTRDIFF_MIN INT64_MIN
> +#define PTRDIFF_MAX INT64_MAX
> +#define SIZE_MAX UINT64_MAX
> diff --git a/arch/loongarch64/bits/syscall.h.in b/arch/loongarch64/bits/syscall.h.in
> new file mode 100644
> index 00000000..689ff36b
> --- /dev/null
> +++ b/arch/loongarch64/bits/syscall.h.in
> @@ -0,0 +1,303 @@
> +#define __NR_io_setup 0
> +#define __NR_io_destroy 1
> +#define __NR_io_submit 2
> +#define __NR_io_cancel 3
> +#define __NR_io_getevents 4
> +#define __NR_setxattr 5
> +#define __NR_lsetxattr 6
> +#define __NR_fsetxattr 7
> +#define __NR_getxattr 8
> +#define __NR_lgetxattr 9
> +#define __NR_fgetxattr 10
> +#define __NR_listxattr 11
> +#define __NR_llistxattr 12
> +#define __NR_flistxattr 13
> +#define __NR_removexattr 14
> +#define __NR_lremovexattr 15
> +#define __NR_fremovexattr 16
> +#define __NR_getcwd 17
> +#define __NR_lookup_dcookie 18
> +#define __NR_eventfd2 19
> +#define __NR_epoll_create1 20
> +#define __NR_epoll_ctl 21
> +#define __NR_epoll_pwait 22
> +#define __NR_dup 23
> +#define __NR_dup3 24
> +#define __NR3264_fcntl 25
> +#define __NR_inotify_init1 26
> +#define __NR_inotify_add_watch 27
> +#define __NR_inotify_rm_watch 28
> +#define __NR_ioctl 29
> +#define __NR_ioprio_set 30
> +#define __NR_ioprio_get 31
> +#define __NR_flock 32
> +#define __NR_mknodat 33
> +#define __NR_mkdirat 34
> +#define __NR_unlinkat 35
> +#define __NR_symlinkat 36
> +#define __NR_linkat 37
> +#define __NR_umount2 39
> +#define __NR_mount 40
> +#define __NR_pivot_root 41
> +#define __NR_nfsservctl 42
> +#define __NR3264_statfs 43
> +#define __NR3264_fstatfs 44
> +#define __NR3264_truncate 45
> +#define __NR3264_ftruncate 46
> +#define __NR_fallocate 47
> +#define __NR_faccessat 48
> +#define __NR_chdir 49
> +#define __NR_fchdir 50
> +#define __NR_chroot 51
> +#define __NR_fchmod 52
> +#define __NR_fchmodat 53
> +#define __NR_fchownat 54
> +#define __NR_fchown 55
> +#define __NR_openat 56
> +#define __NR_close 57
> +#define __NR_vhangup 58
> +#define __NR_pipe2 59
> +#define __NR_quotactl 60
> +#define __NR_getdents64 61
> +#define __NR3264_lseek 62
> +#define __NR_read 63
> +#define __NR_write 64
> +#define __NR_readv 65
> +#define __NR_writev 66
> +#define __NR_pread64 67
> +#define __NR_pwrite64 68
> +#define __NR_preadv 69
> +#define __NR_pwritev 70
> +#define __NR3264_sendfile 71
> +#define __NR_pselect6 72
> +#define __NR_ppoll 73
> +#define __NR_signalfd4 74
> +#define __NR_vmsplice 75
> +#define __NR_splice 76
> +#define __NR_tee 77
> +#define __NR_readlinkat 78
> +#define __NR_sync 81
> +#define __NR_fsync 82
> +#define __NR_fdatasync 83
> +#define __NR_sync_file_range 84
> +#define __NR_timerfd_create 85
> +#define __NR_timerfd_settime 86
> +#define __NR_timerfd_gettime 87
> +#define __NR_utimensat 88
> +#define __NR_acct 89
> +#define __NR_capget 90
> +#define __NR_capset 91
> +#define __NR_personality 92
> +#define __NR_exit 93
> +#define __NR_exit_group 94
> +#define __NR_waitid 95
> +#define __NR_set_tid_address 96
> +#define __NR_unshare 97
> +#define __NR_futex 98
> +#define __NR_set_robust_list 99
> +#define __NR_get_robust_list 100
> +#define __NR_nanosleep 101
> +#define __NR_getitimer 102
> +#define __NR_setitimer 103
> +#define __NR_kexec_load 104
> +#define __NR_init_module 105
> +#define __NR_delete_module 106
> +#define __NR_timer_create 107
> +#define __NR_timer_gettime 108
> +#define __NR_timer_getoverrun 109
> +#define __NR_timer_settime 110
> +#define __NR_timer_delete 111
> +#define __NR_clock_settime 112
> +#define __NR_clock_gettime 113
> +#define __NR_clock_getres 114
> +#define __NR_clock_nanosleep 115
> +#define __NR_syslog 116
> +#define __NR_ptrace 117
> +#define __NR_sched_setparam 118
> +#define __NR_sched_setscheduler 119
> +#define __NR_sched_getscheduler 120
> +#define __NR_sched_getparam 121
> +#define __NR_sched_setaffinity 122
> +#define __NR_sched_getaffinity 123
> +#define __NR_sched_yield 124
> +#define __NR_sched_get_priority_max 125
> +#define __NR_sched_get_priority_min 126
> +#define __NR_sched_rr_get_interval 127
> +#define __NR_restart_syscall 128
> +#define __NR_kill 129
> +#define __NR_tkill 130
> +#define __NR_tgkill 131
> +#define __NR_sigaltstack 132
> +#define __NR_rt_sigsuspend 133
> +#define __NR_rt_sigaction 134
> +#define __NR_rt_sigprocmask 135
> +#define __NR_rt_sigpending 136
> +#define __NR_rt_sigtimedwait 137
> +#define __NR_rt_sigqueueinfo 138
> +#define __NR_rt_sigreturn 139
> +#define __NR_setpriority 140
> +#define __NR_getpriority 141
> +#define __NR_reboot 142
> +#define __NR_setregid 143
> +#define __NR_setgid 144
> +#define __NR_setreuid 145
> +#define __NR_setuid 146
> +#define __NR_setresuid 147
> +#define __NR_getresuid 148
> +#define __NR_setresgid 149
> +#define __NR_getresgid 150
> +#define __NR_setfsuid 151
> +#define __NR_setfsgid 152
> +#define __NR_times 153
> +#define __NR_setpgid 154
> +#define __NR_getpgid 155
> +#define __NR_getsid 156
> +#define __NR_setsid 157
> +#define __NR_getgroups 158
> +#define __NR_setgroups 159
> +#define __NR_uname 160
> +#define __NR_sethostname 161
> +#define __NR_setdomainname 162
> +#define __NR_getrlimit 163
> +#define __NR_setrlimit 164
> +#define __NR_getrusage 165
> +#define __NR_umask 166
> +#define __NR_prctl 167
> +#define __NR_getcpu 168
> +#define __NR_gettimeofday 169
> +#define __NR_settimeofday 170
> +#define __NR_adjtimex 171
> +#define __NR_getpid 172
> +#define __NR_getppid 173
> +#define __NR_getuid 174
> +#define __NR_geteuid 175
> +#define __NR_getgid 176
> +#define __NR_getegid 177
> +#define __NR_gettid 178
> +#define __NR_sysinfo 179
> +#define __NR_mq_open 180
> +#define __NR_mq_unlink 181
> +#define __NR_mq_timedsend 182
> +#define __NR_mq_timedreceive 183
> +#define __NR_mq_notify 184
> +#define __NR_mq_getsetattr 185
> +#define __NR_msgget 186
> +#define __NR_msgctl 187
> +#define __NR_msgrcv 188
> +#define __NR_msgsnd 189
> +#define __NR_semget 190
> +#define __NR_semctl 191
> +#define __NR_semtimedop 192
> +#define __NR_semop 193
> +#define __NR_shmget 194
> +#define __NR_shmctl 195
> +#define __NR_shmat 196
> +#define __NR_shmdt 197
> +#define __NR_socket 198
> +#define __NR_socketpair 199
> +#define __NR_bind 200
> +#define __NR_listen 201
> +#define __NR_accept 202
> +#define __NR_connect 203
> +#define __NR_getsockname 204
> +#define __NR_getpeername 205
> +#define __NR_sendto 206
> +#define __NR_recvfrom 207
> +#define __NR_setsockopt 208
> +#define __NR_getsockopt 209
> +#define __NR_shutdown 210
> +#define __NR_sendmsg 211
> +#define __NR_recvmsg 212
> +#define __NR_readahead 213
> +#define __NR_brk 214
> +#define __NR_munmap 215
> +#define __NR_mremap 216
> +#define __NR_add_key 217
> +#define __NR_request_key 218
> +#define __NR_keyctl 219
> +#define __NR_clone 220
> +#define __NR_execve 221
> +#define __NR3264_mmap 222
> +#define __NR3264_fadvise64 223
> +#define __NR_swapon 224
> +#define __NR_swapoff 225
> +#define __NR_mprotect 226
> +#define __NR_msync 227
> +#define __NR_mlock 228
> +#define __NR_munlock 229
> +#define __NR_mlockall 230
> +#define __NR_munlockall 231
> +#define __NR_mincore 232
> +#define __NR_madvise 233
> +#define __NR_remap_file_pages 234
> +#define __NR_mbind 235
> +#define __NR_get_mempolicy 236
> +#define __NR_set_mempolicy 237
> +#define __NR_migrate_pages 238
> +#define __NR_move_pages 239
> +#define __NR_rt_tgsigqueueinfo 240
> +#define __NR_perf_event_open 241
> +#define __NR_accept4 242
> +#define __NR_recvmmsg 243
> +#define __NR_arch_specific_syscall 244
> +#define __NR_wait4 260
> +#define __NR_prlimit64 261
> +#define __NR_fanotify_init 262
> +#define __NR_fanotify_mark 263
> +#define __NR_name_to_handle_at 264
> +#define __NR_open_by_handle_at 265
> +#define __NR_clock_adjtime 266
> +#define __NR_syncfs 267
> +#define __NR_setns 268
> +#define __NR_sendmmsg 269
> +#define __NR_process_vm_readv 270
> +#define __NR_process_vm_writev 271
> +#define __NR_kcmp 272
> +#define __NR_finit_module 273
> +#define __NR_sched_setattr 274
> +#define __NR_sched_getattr 275
> +#define __NR_renameat2 276
> +#define __NR_seccomp 277
> +#define __NR_getrandom 278
> +#define __NR_memfd_create 279
> +#define __NR_bpf 280
> +#define __NR_execveat 281
> +#define __NR_userfaultfd 282
> +#define __NR_membarrier 283
> +#define __NR_mlock2 284
> +#define __NR_copy_file_range 285
> +#define __NR_preadv2 286
> +#define __NR_pwritev2 287
> +#define __NR_pkey_mprotect 288
> +#define __NR_pkey_alloc 289
> +#define __NR_pkey_free 290
> +#define __NR_statx 291
> +#define __NR_io_pgetevents 292
> +#define __NR_rseq 293
> +#define __NR_kexec_file_load 294
> +#define __NR_pidfd_send_signal 424
> +#define __NR_io_uring_setup 425
> +#define __NR_io_uring_enter 426
> +#define __NR_io_uring_register 427
> +#define __NR_open_tree 428
> +#define __NR_move_mount 429
> +#define __NR_fsopen 430
> +#define __NR_fsconfig 431
> +#define __NR_fsmount 432
> +#define __NR_fspick 433
> +#define __NR_pidfd_open 434
> +#define __NR_clone3 435
> +#define __NR_close_range 436
> +#define __NR_openat2 437
> +#define __NR_pidfd_getfd 438
> +#define __NR_faccessat2 439
> +#define __NR_process_madvise 440
> +#define __NR_fcntl __NR3264_fcntl
> +#define __NR_statfs __NR3264_statfs
> +#define __NR_fstatfs __NR3264_fstatfs
> +#define __NR_truncate __NR3264_truncate
> +#define __NR_ftruncate __NR3264_ftruncate
> +#define __NR_lseek __NR3264_lseek
> +#define __NR_sendfile __NR3264_sendfile
> +#define __NR_mmap __NR3264_mmap
> +#define __NR_fadvise64 __NR3264_fadvise64
> diff --git a/arch/loongarch64/bits/user.h b/arch/loongarch64/bits/user.h
> new file mode 100644
> index 00000000..4d4cd534
> --- /dev/null
> +++ b/arch/loongarch64/bits/user.h
> @@ -0,0 +1,5 @@
> +#define ELF_NGREG 45
> +#define ELF_NFPREG 33
> +
> +typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
> +typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
> diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
> new file mode 100644
> index 00000000..c806a0bf
> --- /dev/null
> +++ b/arch/loongarch64/crt_arch.h
> @@ -0,0 +1,14 @@
> +__asm__(
> +".text \n"
> +".global " START "\n"
> +".type " START ", @function\n"
> +START ":\n"
> +" add.w $fp, $r0,$r0\n"
> +" or $a0, $sp, $zero\n"
> +".weak _DYNAMIC\n"
> +".hidden _DYNAMIC\n"
> +" la.local $a1, _DYNAMIC\n"
> +" addi.w $t7, $r0, -16\n"
> +" and $sp, $sp, $t7\n"
> +" b " START "_c\n"
> +);
> diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
> new file mode 100644
> index 00000000..95ee4c7a
> --- /dev/null
> +++ b/arch/loongarch64/pthread_arch.h
> @@ -0,0 +1,13 @@
> +static inline uintptr_t __get_tp()
> +{
> + register uintptr_t tp __asm__("tp");
> + __asm__ ("" : "=r" (tp) );
> + return tp;
> +}
> +
> +#define TLS_ABOVE_TP
> +#define GAP_ABOVE_TP 0
> +
> +#define DTP_OFFSET 0
> +
> +#define MC_PC pc
> diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
> new file mode 100644
> index 00000000..2f759a34
> --- /dev/null
> +++ b/arch/loongarch64/reloc.h
> @@ -0,0 +1,27 @@
> +#ifdef __loongarch64_soft_float
> +#define FP_SUFFIX "-sf"
> +#else
> +#define FP_SUFFIX ""
> +#endif
> +
> +#define LDSO_ARCH "loongarch64" FP_SUFFIX
> +
> +#define TPOFF_K (0x0)
> +
> +#define REL_PLT R_LARCH_JUMP_SLOT
> +#define REL_COPY R_LARCH_COPY
> +#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
> +#define REL_DTPOFF R_LARCH_TLS_DTPREL64
> +#define REL_TPOFF R_LARCH_TLS_TPREL64
> +#define REL_RELATIVE R_LARCH_RELATIVE
> +#define REL_SYMBOLIC R_LARCH_64
> +
> +#define CRTJMP(pc,sp) __asm__ __volatile__( \
> + "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
> +
> +#define GETFUNCSYM(fp, sym, got) __asm__ ( \
> + ".hidden " #sym "\n" \
> + ".align 8 \n" \
> + " la.local $t1, "#sym" \n" \
> + " or %0, $t1, $zero \n" \
> + : "=r"(*(fp)) : : "memory" )
> diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
> new file mode 100644
> index 00000000..ddd29578
> --- /dev/null
> +++ b/arch/loongarch64/syscall_arch.h
> @@ -0,0 +1,137 @@
> +#define __SYSCALL_LL_E(x) (x)
> +#define __SYSCALL_LL_O(x) (x)
> +
> +#define SYSCALL_CLOBBERLIST \
> + "$t0", "$t1", "$t2", "$t3", \
> + "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
> +
> +static inline long __syscall0(long n)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0");
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "=r"(a0)
> + : "r"(a7)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall1(long n, long a)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall2(long n, long a, long b)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> + register long a1 __asm__("$a1") = b;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7), "r"(a1)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall3(long n, long a, long b, long c)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> + register long a1 __asm__("$a1") = b;
> + register long a2 __asm__("$a2") = c;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7), "r"(a1), "r"(a2)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall4(long n, long a, long b, long c, long d)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> + register long a1 __asm__("$a1") = b;
> + register long a2 __asm__("$a2") = c;
> + register long a3 __asm__("$a3") = d;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall5(long n, long a, long b, long c, long d, long e)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> + register long a1 __asm__("$a1") = b;
> + register long a2 __asm__("$a2") = c;
> + register long a3 __asm__("$a3") = d;
> + register long a4 __asm__("$a4") = e;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> + register long a1 __asm__("$a1") = b;
> + register long a2 __asm__("$a2") = c;
> + register long a3 __asm__("$a3") = d;
> + register long a4 __asm__("$a4") = e;
> + register long a5 __asm__("$a5") = f;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
> +{
> + register long a7 __asm__("$a7") = n;
> + register long a0 __asm__("$a0") = a;
> + register long a1 __asm__("$a1") = b;
> + register long a2 __asm__("$a2") = c;
> + register long a3 __asm__("$a3") = d;
> + register long a4 __asm__("$a4") = e;
> + register long a5 __asm__("$a5") = f;
> + register long a6 __asm__("$a6") = g;
> +
> + __asm__ __volatile__ (
> + "syscall 0"
> + : "+r"(a0)
> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
> + : SYSCALL_CLOBBERLIST);
> + return a0;
> +}
> +
> +#define VDSO_USEFUL
> +#define VDSO_CGT_SYM "__vdso_clock_gettime"
> +#define VDSO_CGT_VER "LINUX_2.6"
> +
> +#define IPC_64 0
> diff --git a/configure b/configure
> index 6f5453f5..aac0c467 100755
> --- a/configure
> +++ b/configure
> @@ -338,6 +338,7 @@ powerpc*|ppc*) ARCH=powerpc ;;
> riscv64*) ARCH=riscv64 ;;
> sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
> s390x*) ARCH=s390x ;;
> +loongarch64*) ARCH=loongarch64 ;;
> unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;;
> *) fail "$0: unknown or unsupported target \"$target\"" ;;
> esac
> diff --git a/crt/loongarch64/crti.s b/crt/loongarch64/crti.s
> new file mode 100644
> index 00000000..96a754d3
> --- /dev/null
> +++ b/crt/loongarch64/crti.s
> @@ -0,0 +1,15 @@
> +.section .init
> +.global _init
> +_init:
> + addi.d $r3,$r3,-16
> + st.d $fp,$r3,0
> + st.d $ra,$r3,8
> + addi.d $fp,$r3,16
> +
> +.section .fini
> +.global _fini
> +_fini:
> + addi.d $r3,$r3,-16
> + st.d $fp,$r3,0
> + st.d $ra,$r3,8
> + addi.d $fp,$r3,16
> diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
> new file mode 100644
> index 00000000..bffb18f4
> --- /dev/null
> +++ b/crt/loongarch64/crtn.s
> @@ -0,0 +1,12 @@
> +.section .init
> + ld.d $fp,$r3,0
> + ld.d $ra,$r3,8
> + addi.d $r3,$r3,16
> + jirl $r0,$ra,0
> +
> +
> +.section .fini
> + ld.d $fp,$r3,0
> + ld.d $ra,$r3,8
> + addi.d $r3,$r3,16
> + jirl $r0,$ra,0
> diff --git a/include/elf.h b/include/elf.h
> index 86e2f0bb..69b01ff4 100644
> --- a/include/elf.h
> +++ b/include/elf.h
> @@ -697,6 +697,11 @@ typedef struct {
> #define NT_MIPS_FP_MODE 0x801
> #define NT_MIPS_MSA 0x802
> #define NT_VERSION 1
> +#define NT_LOONGARCH_CPUCFG 0xa00
> +#define NT_LOONGARCH_CSR 0xa01
> +#define NT_LOONGARCH_LSX 0xa02
> +#define NT_LOONGARCH_LASX 0xa03
> +#define NT_LOONGARCH_LBT 0xa04
>
>
>
> @@ -3288,6 +3293,67 @@ enum
> #define R_RISCV_SET32 56
> #define R_RISCV_32_PCREL 57
>
> +/* LoongISA ELF Flags */
> +#define EM_LOONGARCH 258
> +
> +#define EF_LARCH_ABI 0x0003
> +#define EF_LARCH_ABI_LP64 0x0003
> +#define EF_LARCH_ABI_LP32 0x0001
> +
> +/* Loongarch specific dynamic relocations. */
> +#define R_LARCH_NONE 0
> +#define R_LARCH_32 1
> +#define R_LARCH_64 2
> +#define R_LARCH_RELATIVE 3
> +#define R_LARCH_COPY 4
> +#define R_LARCH_JUMP_SLOT 5
> +#define R_LARCH_TLS_DTPMOD32 6
> +#define R_LARCH_TLS_DTPMOD64 7
> +#define R_LARCH_TLS_DTPREL32 8
> +#define R_LARCH_TLS_DTPREL64 9
> +#define R_LARCH_TLS_TPREL32 10
> +#define R_LARCH_TLS_TPREL64 11
> +#define R_LARCH_IRELATIVE 12
> +#define R_LARCH_MARK_LA 20
> +#define R_LARCH_MARK_PCREL 21
> +#define R_LARCH_SOP_PUSH_PCREL 22
> +#define R_LARCH_SOP_PUSH_ABSOLUTE 23
> +#define R_LARCH_SOP_PUSH_DUP 24
> +#define R_LARCH_SOP_PUSH_GPREL 25
> +#define R_LARCH_SOP_PUSH_TLS_TPREL 26
> +#define R_LARCH_SOP_PUSH_TLS_GOT 27
> +#define R_LARCH_SOP_PUSH_TLS_GD 28
> +#define R_LARCH_SOP_PUSH_PLT_PCREL 29
> +#define R_LARCH_SOP_ASSERT 30
> +#define R_LARCH_SOP_NOT 31
> +#define R_LARCH_SOP_SUB 32
> +#define R_LARCH_SOP_SL 33
> +#define R_LARCH_SOP_SR 34
> +#define R_LARCH_SOP_ADD 35
> +#define R_LARCH_SOP_AND 36
> +#define R_LARCH_SOP_IF_ELSE 37
> +#define R_LARCH_SOP_POP_32_S_10_5 38
> +#define R_LARCH_SOP_POP_32_U_10_12 39
> +#define R_LARCH_SOP_POP_32_S_10_12 40
> +#define R_LARCH_SOP_POP_32_S_10_16 41
> +#define R_LARCH_SOP_POP_32_S_10_16_S2 42
> +#define R_LARCH_SOP_POP_32_S_5_20 43
> +#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
> +#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
> +#define R_LARCH_SOP_POP_32_U 46
> +#define R_LARCH_ADD8 47
> +#define R_LARCH_ADD16 48
> +#define R_LARCH_ADD24 49
> +#define R_LARCH_ADD32 50
> +#define R_LARCH_ADD64 51
> +#define R_LARCH_SUB8 52
> +#define R_LARCH_SUB16 53
> +#define R_LARCH_SUB24 54
> +#define R_LARCH_SUB32 55
> +#define R_LARCH_SUB64 56
> +#define R_LARCH_GNU_VTINHERIT 57
> +#define R_LARCH_GNU_VTENTRY 58
> +
> #ifdef __cplusplus
> }
> #endif
> diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
> new file mode 100644
> index 00000000..049234be
> --- /dev/null
> +++ b/src/fenv/loongarch64/fenv.S
> @@ -0,0 +1,72 @@
> +#ifndef __loongarch_soft_float
> +
> +.global feclearexcept
> +.type feclearexcept,@function
> +feclearexcept:
> + li.w $a1, 0x1f0000 //flags in 16-20 bit of fcsr0.
> + and $a0, $a0, $a1
> + movfcsr2gr $a1, $r0
> + or $a1, $a1, $a0
> + xor $a1, $a1, $a0
> + movgr2fcsr $r0, $a1
> + li.w $v0, 0
> + jirl $zero, $ra, 0
> +
> +.global feraiseexcept
> +.type feraiseexcept,@function
> +feraiseexcept:
> + li.w $a1, 0x1f0000
> + and $a0, $a0, $a1
> + movfcsr2gr $a1, $r0
> + or $a1, $a1, $a0
> + movgr2fcsr $r0, $a1
> + li.w $v0, 0
> + jirl $zero, $ra, 0
> +
> +.global fetestexcept
> +.type fetestexcept,@function
> +fetestexcept:
> + li.w $a1, 0x1f0000
> + and $a0, $a0, $a1
> + movfcsr2gr $a1, $r0
> + and $v0, $a1, $a0
> + jirl $zero, $ra, 0
> +
> +.global fegetround
> +.type fegetround,@function
> +fegetround:
> + movfcsr2gr $v0, $r0
> + andi $v0, $v0, 0x300 //fcsr0.RM
> + jirl $zero, $ra, 0
> +
> +.global __fesetround
> +.hidden __fesetround
> +.type __fesetround,@function
> +__fesetround:
> + movfcsr2gr $a1, $r0
> + li.w $a2, -769 //0xfffffcff
> + and $a1, $a1, $a2
> + or $a1, $a1, $a0
> + movgr2fcsr $r0, $a1
> + li.w $v0, 0
> + jirl $zero, $ra, 0
> +
> +.global fegetenv
> +.type fegetenv,@function
> +fegetenv:
> + movfcsr2gr $a1, $r0
> + st.w $a1, $a0, 0
> + li.w $v0, 0
> + jirl $zero, $ra, 0
> +
> +.global fesetenv
> +.type fesetenv,@function
> +fesetenv:
> + addi.d $a1, $a0, 1
> + beq $a1, $r0, 1f
> + ld.w $a1, $a0, 0
> +1: movgr2fcsr $r0, $a1
> + li.w $v0, 0
> + jirl $zero, $ra, 0
> +
> +#endif
> diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
> new file mode 100644
> index 00000000..5f51ed85
> --- /dev/null
> +++ b/src/ldso/loongarch64/dlsym.s
> @@ -0,0 +1,7 @@
> +.global dlsym
> +.hidden __dlsym
> +.type dlsym,@function
> +dlsym:
> + move $a2, $ra
> + la.global $r16, __dlsym
> + jirl $r0, $r16, 0
> diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
> new file mode 100644
> index 00000000..41d897ed
> --- /dev/null
> +++ b/src/setjmp/loongarch64/longjmp.S
> @@ -0,0 +1,37 @@
> +.global _longjmp
> +.global longjmp
> +.type _longjmp,@function
> +.type longjmp,@function
> +_longjmp:
> +longjmp:
> + add.d $t5, $a0, $zero
> + add.d $v0, $a1, $zero
> +
> + bne $v0, $zero, 1f
> + addi.d $v0, $v0, 1
> +
> +1:
> + ld.d $ra, $t5, 0
> + ld.d $sp, $t5, 8
> + ld.d $r21,$t5, 16
> + ld.d $fp, $t5, 24
> + ld.d $s0, $t5, 32
> + ld.d $s1, $t5, 40
> + ld.d $s2, $t5, 48
> + ld.d $s3, $t5, 56
> + ld.d $s4, $t5, 64
> + ld.d $s5, $t5, 72
> + ld.d $s6, $t5, 80
> + ld.d $s7, $t5, 88
> + ld.d $s8, $t5, 96
> +#ifndef __loongarch64_soft_float
> + fld.d $fs0, $t5, 104
> + fld.d $fs1, $t5, 112
> + fld.d $fs2, $t5, 120
> + fld.d $fs3, $t5, 128
> + fld.d $fs4, $t5, 136
> + fld.d $fs5, $t5, 144
> + fld.d $fs6, $t5, 152
> + fld.d $fs7, $t5, 160
> +#endif
> + jirl $zero, $ra, 0
> diff --git a/src/setjmp/loongarch64/setjmp.S b/src/setjmp/loongarch64/setjmp.S
> new file mode 100644
> index 00000000..8dca3cb8
> --- /dev/null
> +++ b/src/setjmp/loongarch64/setjmp.S
> @@ -0,0 +1,34 @@
> +.global __setjmp
> +.global _setjmp
> +.global setjmp
> +.type __setjmp,@function
> +.type _setjmp,@function
> +.type setjmp,@function
> +__setjmp:
> +_setjmp:
> +setjmp:
> + st.d $ra, $a0, 0
> + st.d $sp, $a0, 8
> + st.d $r21,$a0, 16
> + st.d $fp, $a0, 24
> + st.d $s0, $a0, 32
> + st.d $s1, $a0, 40
> + st.d $s2, $a0, 48
> + st.d $s3, $a0, 56
> + st.d $s4, $a0, 64
> + st.d $s5, $a0, 72
> + st.d $s6, $a0, 80
> + st.d $s7, $a0, 88
> + st.d $s8, $a0, 96
> +#ifndef __loongarch64_soft_float
> + fst.d $fs0, $a0, 104
> + fst.d $fs1, $a0, 112
> + fst.d $fs2, $a0, 120
> + fst.d $fs3, $a0, 128
> + fst.d $fs4, $a0, 136
> + fst.d $fs5, $a0, 144
> + fst.d $fs6, $a0, 152
> + fst.d $fs7, $a0, 160
> +#endif
> + xor $v0, $v0, $v0
> + jirl $zero, $ra, 0
> diff --git a/src/signal/loongarch64/restore.s b/src/signal/loongarch64/restore.s
> new file mode 100644
> index 00000000..9bf015a0
> --- /dev/null
> +++ b/src/signal/loongarch64/restore.s
> @@ -0,0 +1,10 @@
> +.global __restore_rt
> +.global __restore
> +.hidden __restore_rt
> +.hidden __restore
> +.type __restore_rt,@function
> +.type __restore,@function
> +__restore_rt:
> +__restore:
> + ori $a7, $zero, 139
> + syscall 0
> diff --git a/src/signal/loongarch64/sigsetjmp.s b/src/signal/loongarch64/sigsetjmp.s
> new file mode 100644
> index 00000000..d53f334a
> --- /dev/null
> +++ b/src/signal/loongarch64/sigsetjmp.s
> @@ -0,0 +1,29 @@
> +.global sigsetjmp
> +.global __sigsetjmp
> +.type sigsetjmp,@function
> +.type __sigsetjmp,@function
> +sigsetjmp:
> +__sigsetjmp:
> + or $t5, $a0, $zero
> + or $t6, $a1, $zero
> +
> + # comparing save mask with 0, if equals to 0 then
> + # sigsetjmp is equal to setjmp.
> + beq $t6, $zero, 1f
> + st.d $ra, $t5, 168
> +
> + # save base of got so that we can use it later
> + # once we return from 'longjmp'
> + la.global $t8, setjmp
> + jirl $ra, $t8, 0
> +
> + or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
> + ld.d $ra, $t5, 168 # Restore ra of sigsetjmp
> + or $a0, $t5, $zero
> +
> +.hidden __sigsetjmp_tail
> + la.global $t8, __sigsetjmp_tail
> + jirl $zero, $t8, 0
> +1:
> + la.global $t8, setjmp
> + jirl $zero, $t8, 0
> diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
> new file mode 100644
> index 00000000..421cd381
> --- /dev/null
> +++ b/src/thread/loongarch64/__set_thread_area.s
> @@ -0,0 +1,7 @@
> +.global __set_thread_area
> +.hidden __set_thread_area
> +.type __set_thread_area,@function
> +__set_thread_area:
> + or $tp, $a0, $zero
> + ori $a0, $zero, 0
> + jirl $zero, $ra, 0
> diff --git a/src/thread/loongarch64/__unmapself.s b/src/thread/loongarch64/__unmapself.s
> new file mode 100644
> index 00000000..b77e6d1d
> --- /dev/null
> +++ b/src/thread/loongarch64/__unmapself.s
> @@ -0,0 +1,7 @@
> +.global __unmapself
> +.type __unmapself, @function
> +__unmapself:
> + li.d $a7, 215
> + syscall 0 # call munmap
> + li.d $a7, 93
> + syscall 0 # call exit
> diff --git a/src/thread/loongarch64/clone.s b/src/thread/loongarch64/clone.s
> new file mode 100644
> index 00000000..ec920c7b
> --- /dev/null
> +++ b/src/thread/loongarch64/clone.s
> @@ -0,0 +1,47 @@
> +#__clone(func, stack, flags, arg, ptid, tls, ctid)
> +# a0, a1, a2, a3, a4, a5, a6
> +# sys_clone3(struct clone_args *cl_args, size_t size)
> +# a0 a1
> +
> +.global __clone
> +.hidden __clone
> +.type __clone,@function
> +__clone:
> + # Save function pointer and argument pointer on new thread stack
> + addi.d $a1, $a1, -16
> + st.d $a0, $a1, 0 # save function pointer
> + st.d $a3, $a1, 8 # save argument pointer
> +
> + li.d $t0, ~0x004000ff # mask CSIGNAL and CLONE_DETACHED
> + and $t1, $a2, $t0 # cl_args.flags
> + li.d $t0, 0x000000ff # CSIGNAL
> + and $t2, $a2, $t0 # cl_args.exit_signal
> +
> + bstrins.d $sp, $zero, 2, 0 # align stack to 8 bytes
> + addi.d $sp, $sp, -88 # struct clone_args
> + st.d $t1, $sp, 0 # flags
> + st.d $a4, $sp, 8 # pidfd
> + st.d $a6, $sp, 16 # child_tid
> + st.d $a4, $sp, 24 # parent_tid
> + st.d $t2, $sp, 32 # exit_signal
> + st.d $a1, $sp, 40 # stack
> + st.d $zero, $sp, 48 # stack_size
> + st.d $a5, $sp, 56 # tls
> + st.d $zero, $sp, 64 # set_tid
> + st.d $zero, $sp, 72 # set_tid_size
> + st.d $zero, $sp, 80 # cgroup
> +
> + move $a0, $sp
> + li.d $a1, 88
> + li.d $a7, 435 # __NR_clone3
> + syscall 0 # call clone3
> +
> + beqz $a0, 1f # whether child process
> + addi.d $sp, $sp, 88
> + jirl $zero, $ra, 0 # parent process return
> +1:
> + ld.d $t8, $sp, 0 # function pointer
> + ld.d $a0, $sp, 8 # argument pointer
> + jirl $ra, $t8, 0 # call the user's function
> + li.d $a7, 93
> + syscall 0 # child process exit
> diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
> new file mode 100644
> index 00000000..3903ed2c
> --- /dev/null
> +++ b/src/thread/loongarch64/syscall_cp.s
> @@ -0,0 +1,29 @@
> +.global __cp_begin
> +.hidden __cp_begin
> +.global __cp_end
> +.hidden __cp_end
> +.global __cp_cancel
> +.hidden __cp_cancel
> +.hidden __cancel
> +.global __syscall_cp_asm
> +.hidden __syscall_cp_asm
> +.type __syscall_cp_asm,@function
> +
> +__syscall_cp_asm:
> +__cp_begin:
> + ld.w $a0, $a0, 0
> + bnez $a0, __cp_cancel
> + or $t8, $a1, $zero # reserve system call number
> + or $a0, $a2, $zero
> + or $a1, $a3, $zero
> + or $a2, $a4, $zero
> + or $a3, $a5, $zero
> + or $a4, $a6, $zero
> + or $a5, $a7, $zero
> + or $a7, $t8, $zero
> + syscall 0
> +__cp_end:
> + jirl $zero, $ra, 0
> +__cp_cancel:
> + la.local $t8, __cancel
> + jirl $zero, $t8, 0
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [musl] Re: add loongarch64 port v4
2022-06-23 1:59 ` Rich Felker
@ 2022-07-05 12:56 ` 王洪亮
2022-07-16 8:13 ` 王洪亮
0 siblings, 1 reply; 7+ messages in thread
From: 王洪亮 @ 2022-07-05 12:56 UTC (permalink / raw)
To: musl
[-- Attachment #1: Type: text/plain, Size: 53258 bytes --]
Hi, Rich
Have you reviewed it?
This patch has some new problems?
在 2022/6/23 上午9:59, Rich Felker 写道:
> Hi. I just haven't gotten to reviewing it again. I'll try to take a
> good look in the next day or two.
>
> On Thu, Jun 23, 2022 at 09:30:55AM +0800, 王洪亮 wrote:
>> Hi, Rich
>>
>> this patch has any other problems need to be modified?
>>
>> Looking forward to your reply. thanks.
>>
>>
>> Hongliang Wang
>>
>> 在 2022/6/20 下午5:49, 王洪亮 写道:
>>> Hi, Rich
>>>
>>> 1. this patch has any other problems need to be modified?
>>>
>>> 2.what are the suggestions for support LA32 later?
>>>
>>>
>>> 在 2022/6/14 下午3:23, 王洪亮 写道:
>>>> Hi,
>>>>
>>>> 1. this patch has any other problems need to be modified?
>>>>
>>>> 2.what are the suggestions for support LA32?
>>>>
>>>>
>>>> 在 2022/6/8 上午11:56, 王洪亮 写道:
>>>>> Hi,
>>>>>
>>>>> I published loongarch64 port v4 in
>>>>> https://github.com/loongson/musl/tree/loongarch-v2.0.
>>>>>
>>>>> fixed the following problems:
>>>>>
>>>>> 1.fixed the extension field of struct mcontext
>>>>>
>>>>> 2.removed arch/loongarch64/kstat.h
>>>>>
>>>>> 3.deleted the incorrect definition in arch/loongarch64/reloc.h
>>>>>
>>>>> 4.optimize dlsym
>>>>>
>>>>> please code review if there are any other problems ? thanks.
>>>>>
>>>>> I have one questions:
>>>>>
>>>>> Through add "long__uc_pad" in struct ucontext_t to meet the
>>>>> extcontext[] 16 bytes alignment,
>>>>>
>>>>> if run in loongarch32, this method not meet the 16 bytes
>>>>> alignment requirement. how to do it ?
>>>>>
>>>>>
>>>>> Hongliang Wang.
>>>>>
>> >From 5535c500f137c3cb9ad36c7c96e7aaca440c85bd Mon Sep 17 00:00:00 2001
>> From: wanghongliang <wanghongliang@loongson.cn>
>> Date: Wed, 8 Jun 2022 01:42:12 +0800
>> Subject: [PATCH] add loongarch64 port v4.
>>
>> Author: xiaojuanZhai <zhaixiaojuan@loongson.cn>
>> Author: meidanLi <limeidan@loongson.cn>
>> Author: guoqiChen <chenguoqi@loongson.cn>
>> Author: xiaolinZhao <zhaoxiaolin@loongson.cn>
>> Author: Fanpeng <fanpeng@loongson.cn>
>> Author: jiantaoShan <shanjiantao@loongson.cn>
>> Author: xuhuiQiang <qiangxuhui@loongson.cn>
>> Author: jingyunHua <huajingyun@loongson.cn>
>> Author: liuxue <liuxue@loongson.cn>
>> Author: wanghongliang <wanghongliang@loongson.cn
>>
>> Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
>> ---
>> arch/loongarch64/atomic_arch.h | 53 ++++
>> arch/loongarch64/bits/alltypes.h.in | 18 ++
>> arch/loongarch64/bits/fenv.h | 20 ++
>> arch/loongarch64/bits/float.h | 16 ++
>> arch/loongarch64/bits/hwcap.h | 14 +
>> arch/loongarch64/bits/posix.h | 2 +
>> arch/loongarch64/bits/ptrace.h | 4 +
>> arch/loongarch64/bits/reg.h | 66 +++++
>> arch/loongarch64/bits/setjmp.h | 1 +
>> arch/loongarch64/bits/signal.h | 80 ++++++
>> arch/loongarch64/bits/stat.h | 18 ++
>> arch/loongarch64/bits/stdint.h | 20 ++
>> arch/loongarch64/bits/syscall.h.in | 303 +++++++++++++++++++++
>> arch/loongarch64/bits/user.h | 5 +
>> arch/loongarch64/crt_arch.h | 14 +
>> arch/loongarch64/pthread_arch.h | 13 +
>> arch/loongarch64/reloc.h | 27 ++
>> arch/loongarch64/syscall_arch.h | 137 ++++++++++
>> configure | 1 +
>> crt/loongarch64/crti.s | 15 +
>> crt/loongarch64/crtn.s | 12 +
>> include/elf.h | 66 +++++
>> src/fenv/loongarch64/fenv.S | 72 +++++
>> src/ldso/loongarch64/dlsym.s | 7 +
>> src/setjmp/loongarch64/longjmp.S | 37 +++
>> src/setjmp/loongarch64/setjmp.S | 34 +++
>> src/signal/loongarch64/restore.s | 10 +
>> src/signal/loongarch64/sigsetjmp.s | 29 ++
>> src/thread/loongarch64/__set_thread_area.s | 7 +
>> src/thread/loongarch64/__unmapself.s | 7 +
>> src/thread/loongarch64/clone.s | 47 ++++
>> src/thread/loongarch64/syscall_cp.s | 29 ++
>> 32 files changed, 1184 insertions(+)
>> create mode 100644 arch/loongarch64/atomic_arch.h
>> create mode 100644 arch/loongarch64/bits/alltypes.h.in
>> create mode 100644 arch/loongarch64/bits/fenv.h
>> create mode 100644 arch/loongarch64/bits/float.h
>> create mode 100644 arch/loongarch64/bits/hwcap.h
>> create mode 100644 arch/loongarch64/bits/posix.h
>> create mode 100644 arch/loongarch64/bits/ptrace.h
>> create mode 100644 arch/loongarch64/bits/reg.h
>> create mode 100644 arch/loongarch64/bits/setjmp.h
>> create mode 100644 arch/loongarch64/bits/signal.h
>> create mode 100644 arch/loongarch64/bits/stat.h
>> create mode 100644 arch/loongarch64/bits/stdint.h
>> create mode 100644 arch/loongarch64/bits/syscall.h.in
>> create mode 100644 arch/loongarch64/bits/user.h
>> create mode 100644 arch/loongarch64/crt_arch.h
>> create mode 100644 arch/loongarch64/pthread_arch.h
>> create mode 100644 arch/loongarch64/reloc.h
>> create mode 100644 arch/loongarch64/syscall_arch.h
>> create mode 100644 crt/loongarch64/crti.s
>> create mode 100644 crt/loongarch64/crtn.s
>> create mode 100644 src/fenv/loongarch64/fenv.S
>> create mode 100644 src/ldso/loongarch64/dlsym.s
>> create mode 100644 src/setjmp/loongarch64/longjmp.S
>> create mode 100644 src/setjmp/loongarch64/setjmp.S
>> create mode 100644 src/signal/loongarch64/restore.s
>> create mode 100644 src/signal/loongarch64/sigsetjmp.s
>> create mode 100644 src/thread/loongarch64/__set_thread_area.s
>> create mode 100644 src/thread/loongarch64/__unmapself.s
>> create mode 100644 src/thread/loongarch64/clone.s
>> create mode 100644 src/thread/loongarch64/syscall_cp.s
>>
>> diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
>> new file mode 100644
>> index 00000000..bf4805c9
>> --- /dev/null
>> +++ b/arch/loongarch64/atomic_arch.h
>> @@ -0,0 +1,53 @@
>> +#define a_ll a_ll
>> +static inline int a_ll(volatile int *p)
>> +{
>> + int v;
>> + __asm__ __volatile__ (
>> + "ll.w %0, %1"
>> + : "=r"(v)
>> + : "ZC"(*p));
>> + return v;
>> +}
>> +
>> +#define a_sc a_sc
>> +static inline int a_sc(volatile int *p, int v)
>> +{
>> + int r;
>> + __asm__ __volatile__ (
>> + "sc.w %0, %1"
>> + : "=r"(r), "=ZC"(*p)
>> + : "0"(v) : "memory");
>> + return r;
>> +}
>> +
>> +#define a_ll_p a_ll_p
>> +static inline void *a_ll_p(volatile void *p)
>> +{
>> + void *v;
>> + __asm__ __volatile__ (
>> + "ll.d %0, %1"
>> + : "=r"(v)
>> + : "ZC"(*(void *volatile *)p));
>> + return v;
>> +}
>> +
>> +#define a_sc_p a_sc_p
>> +static inline int a_sc_p(volatile void *p, void *v)
>> +{
>> + long r;
>> + __asm__ __volatile__ (
>> + "sc.d %0, %1"
>> + : "=r"(r), "=ZC"(*(void *volatile *)p)
>> + : "0"(v)
>> + : "memory");
>> + return r;
>> +}
>> +
>> +#define a_barrier a_barrier
>> +static inline void a_barrier()
>> +{
>> + __asm__ __volatile__ ("dbar 0" : : : "memory");
>> +}
>> +
>> +#define a_pre_llsc a_barrier
>> +#define a_post_llsc a_barrier
>> diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
>> new file mode 100644
>> index 00000000..d1807aca
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/alltypes.h.in
>> @@ -0,0 +1,18 @@
>> +#define _Addr long
>> +#define _Int64 long
>> +#define _Reg long
>> +
>> +#define __BYTE_ORDER 1234
>> +#define __LONG_MAX 0x7fffffffffffffffL
>> +
>> +#ifndef __cplusplus
>> +TYPEDEF int wchar_t;
>> +#endif
>> +
>> +TYPEDEF float float_t;
>> +TYPEDEF double double_t;
>> +
>> +TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
>> +
>> +TYPEDEF unsigned nlink_t;
>> +TYPEDEF int blksize_t;
>> diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
>> new file mode 100644
>> index 00000000..264cafb5
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/fenv.h
>> @@ -0,0 +1,20 @@
>> +#define FE_INEXACT 0x010000
>> +#define FE_UNDERFLOW 0x020000
>> +#define FE_OVERFLOW 0x040000
>> +#define FE_DIVBYZERO 0x080000
>> +#define FE_INVALID 0x100000
>> +
>> +#define FE_ALL_EXCEPT 0x1F0000
>> +
>> +#define FE_TONEAREST 0x000
>> +#define FE_TOWARDZERO 0x100
>> +#define FE_UPWARD 0x200
>> +#define FE_DOWNWARD 0x300
>> +
>> +typedef unsigned fexcept_t;
>> +
>> +typedef struct {
>> + unsigned __cw;
>> +} fenv_t;
>> +
>> +#define FE_DFL_ENV ((const fenv_t *) -1)
>> diff --git a/arch/loongarch64/bits/float.h b/arch/loongarch64/bits/float.h
>> new file mode 100644
>> index 00000000..719c7908
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/float.h
>> @@ -0,0 +1,16 @@
>> +#define FLT_EVAL_METHOD 0
>> +
>> +#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
>> +#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
>> +#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
>> +#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
>> +
>> +#define LDBL_MANT_DIG 113
>> +#define LDBL_MIN_EXP (-16381)
>> +#define LDBL_MAX_EXP 16384
>> +
>> +#define LDBL_DIG 33
>> +#define LDBL_MIN_10_EXP (-4931)
>> +#define LDBL_MAX_10_EXP 4932
>> +
>> +#define DECIMAL_DIG 36
>> diff --git a/arch/loongarch64/bits/hwcap.h b/arch/loongarch64/bits/hwcap.h
>> new file mode 100644
>> index 00000000..c9fa08f6
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/hwcap.h
>> @@ -0,0 +1,14 @@
>> +/* HWCAP - Hardware Capabilities.
>> + * Hardware information is not clear at present, leave it blank.
>> + */
>> +#define HWCAP_LOONGARCH_CPUCFG (1 << 0)
>> +#define HWCAP_LOONGARCH_FPU (1 << 1)
>> +#define HWCAP_LOONGARCH_LSX (1 << 2) /* support 128bit vectors*/
>> +#define HWCAP_LOONGARCH_LASX (1 << 3) /* support 256bit vectors*/
>> +#define HWCAP_LOONGARCH_LBT (1 << 4) /* support LBT*/
>> +#define HWCAP_LOONGARCH_LVZ (1 << 5) /* support virtualization expansion*/
>> +#define HWCAP_LOONGARCH_CRC32 (1 << 7) /* support CRC32 check*/
>> +#define HWCAP_LOONGARCH_AES (1 << 6)
>> +#define HWCAP_LOONGARCH_SHA1 (1 << 8)
>> +#define HWCAP_LOONGARCH_SHA2 (1 << 9)
>> +#define HWCAP_LOONGARCH_SHA3 (1 << 10)
>> diff --git a/arch/loongarch64/bits/posix.h b/arch/loongarch64/bits/posix.h
>> new file mode 100644
>> index 00000000..8068ce98
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/posix.h
>> @@ -0,0 +1,2 @@
>> +#define _POSIX_V6_LP64_OFF64 1
>> +#define _POSIX_V7_LP64_OFF64 1
>> diff --git a/arch/loongarch64/bits/ptrace.h b/arch/loongarch64/bits/ptrace.h
>> new file mode 100644
>> index 00000000..741fc668
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/ptrace.h
>> @@ -0,0 +1,4 @@
>> +#define PTRACE_GET_THREAD_AREA 25
>> +#define PTRACE_SET_THREAD_AREA 26
>> +#define PTRACE_GET_WATCH_REGS 0xd0
>> +#define PTRACE_SET_WATCH_REGS 0xd1
>> diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
>> new file mode 100644
>> index 00000000..5d3f92c5
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/reg.h
>> @@ -0,0 +1,66 @@
>> +#undef __WORDSIZE
>> +#define __WORDSIZE 64
>> +#define LOONGARCH64_EF_R0 0
>> +#define LOONGARCH64_EF_R1 1
>> +#define LOONGARCH64_EF_R2 2
>> +#define LOONGARCH64_EF_R3 3
>> +#define LOONGARCH64_EF_R4 4
>> +#define LOONGARCH64_EF_R5 5
>> +#define LOONGARCH64_EF_R6 6
>> +#define LOONGARCH64_EF_R7 7
>> +#define LOONGARCH64_EF_R8 8
>> +#define LOONGARCH64_EF_R9 9
>> +#define LOONGARCH64_EF_R10 10
>> +#define LOONGARCH64_EF_R11 11
>> +#define LOONGARCH64_EF_R12 12
>> +#define LOONGARCH64_EF_R13 13
>> +#define LOONGARCH64_EF_R14 14
>> +#define LOONGARCH64_EF_R15 15
>> +#define LOONGARCH64_EF_R16 16
>> +#define LOONGARCH64_EF_R17 17
>> +#define LOONGARCH64_EF_R18 18
>> +#define LOONGARCH64_EF_R19 19
>> +#define LOONGARCH64_EF_R20 20
>> +#define LOONGARCH64_EF_R21 21
>> +#define LOONGARCH64_EF_R22 22
>> +#define LOONGARCH64_EF_R23 23
>> +#define LOONGARCH64_EF_R24 24
>> +#define LOONGARCH64_EF_R25 25
>> +#define LOONGARCH64_EF_R26 26
>> +#define LOONGARCH64_EF_R27 27
>> +#define LOONGARCH64_EF_R28 28
>> +#define LOONGARCH64_EF_R29 29
>> +#define LOONGARCH64_EF_R30 30
>> +#define LOONGARCH64_EF_R31 31
>> +
>> +#define LOONGARCH64_EF_SIZE 304 /* size in bytes */
>> +
>> +#define EF_R0 LOONGARCH64_EF_R0
>> +#define EF_R1 LOONGARCH64_EF_R1
>> +#define EF_R2 LOONGARCH64_EF_R2
>> +#define EF_R3 LOONGARCH64_EF_R3
>> +#define EF_R4 LOONGARCH64_EF_R4
>> +#define EF_R5 LOONGARCH64_EF_R5
>> +#define EF_R6 LOONGARCH64_EF_R6
>> +#define EF_R7 LOONGARCH64_EF_R7
>> +#define EF_R8 LOONGARCH64_EF_R8
>> +#define EF_R9 LOONGARCH64_EF_R9
>> +#define EF_R10 LOONGARCH64_EF_R10
>> +#define EF_R11 LOONGARCH64_EF_R11
>> +#define EF_R12 LOONGARCH64_EF_R12
>> +#define EF_R13 LOONGARCH64_EF_R13
>> +#define EF_R14 LOONGARCH64_EF_R14
>> +#define EF_R15 LOONGARCH64_EF_R15
>> +#define EF_R16 LOONGARCH64_EF_R16
>> +#define EF_R17 LOONGARCH64_EF_R17
>> +#define EF_R18 LOONGARCH64_EF_R18
>> +#define EF_R19 LOONGARCH64_EF_R19
>> +#define EF_R20 LOONGARCH64_EF_R20
>> +#define EF_R21 LOONGARCH64_EF_R21
>> +#define EF_R22 LOONGARCH64_EF_R22
>> +#define EF_R23 LOONGARCH64_EF_R23
>> +#define EF_R24 LOONGARCH64_EF_R24
>> +#define EF_R25 LOONGARCH64_EF_R25
>> +#define EF_R26 LOONGARCH64_EF_R26
>> +#define EF_R27 LOONGARCH64_EF_R27
>> +#define EF_R28 LOONGARCH64_EF_R28
>> diff --git a/arch/loongarch64/bits/setjmp.h b/arch/loongarch64/bits/setjmp.h
>> new file mode 100644
>> index 00000000..f4a7f8a3
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/setjmp.h
>> @@ -0,0 +1 @@
>> +typedef unsigned long long __jmp_buf[22];
>> diff --git a/arch/loongarch64/bits/signal.h b/arch/loongarch64/bits/signal.h
>> new file mode 100644
>> index 00000000..4db790e7
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/signal.h
>> @@ -0,0 +1,80 @@
>> +#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
>> + || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
>> +
>> +#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
>> +#define MINSIGSTKSZ 4096
>> +#define SIGSTKSZ 16384
>> +#endif
>> +
>> +typedef unsigned long greg_t, gregset_t[32];
>> +
>> +typedef struct sigcontext {
>> + unsigned long pc;
>> + gregset_t gregs;
>> + unsigned int flags;
>> + unsigned long extcontext[];
>> +} mcontext_t;
>> +
>> +struct sigaltstack {
>> + void *ss_sp;
>> + int ss_flags;
>> + size_t ss_size;
>> +};
>> +
>> +typedef struct __ucontext
>> +{
>> + unsigned long uc_flags;
>> + struct __ucontext *uc_link;
>> + stack_t uc_stack;
>> + sigset_t uc_sigmask;
>> + long __uc_pad;
>> + mcontext_t uc_mcontext;
>> +} ucontext_t;
>> +
>> +#define SA_NOCLDSTOP 1
>> +#define SA_NOCLDWAIT 2
>> +#define SA_SIGINFO 4
>> +#define SA_ONSTACK 0x08000000
>> +#define SA_RESTART 0x10000000
>> +#define SA_NODEFER 0x40000000
>> +#define SA_RESETHAND 0x80000000
>> +#define SA_RESTORER 0x04000000
>> +
>> +#endif
>> +
>> +#define SIGHUP 1
>> +#define SIGINT 2
>> +#define SIGQUIT 3
>> +#define SIGILL 4
>> +#define SIGTRAP 5
>> +#define SIGABRT 6
>> +#define SIGIOT SIGABRT
>> +#define SIGBUS 7
>> +#define SIGFPE 8
>> +#define SIGKILL 9
>> +#define SIGUSR1 10
>> +#define SIGSEGV 11
>> +#define SIGUSR2 12
>> +#define SIGPIPE 13
>> +#define SIGALRM 14
>> +#define SIGTERM 15
>> +#define SIGSTKFLT 16
>> +#define SIGCHLD 17
>> +#define SIGCONT 18
>> +#define SIGSTOP 19
>> +#define SIGTSTP 20
>> +#define SIGTTIN 21
>> +#define SIGTTOU 22
>> +#define SIGURG 23
>> +#define SIGXCPU 24
>> +#define SIGXFSZ 25
>> +#define SIGVTALRM 26
>> +#define SIGPROF 27
>> +#define SIGWINCH 28
>> +#define SIGIO 29
>> +#define SIGPOLL SIGIO
>> +#define SIGPWR 30
>> +#define SIGSYS 31
>> +#define SIGUNUSED SIGSYS
>> +
>> +#define _NSIG 65
>> diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
>> new file mode 100644
>> index 00000000..b7f4221b
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/stat.h
>> @@ -0,0 +1,18 @@
>> +struct stat {
>> + dev_t st_dev;
>> + ino_t st_ino;
>> + mode_t st_mode;
>> + nlink_t st_nlink;
>> + uid_t st_uid;
>> + gid_t st_gid;
>> + dev_t st_rdev;
>> + unsigned long __pad;
>> + off_t st_size;
>> + blksize_t st_blksize;
>> + int __pad2;
>> + blkcnt_t st_blocks;
>> + struct timespec st_atim;
>> + struct timespec st_mtim;
>> + struct timespec st_ctim;
>> + unsigned __unused[2];
>> +};
>> diff --git a/arch/loongarch64/bits/stdint.h b/arch/loongarch64/bits/stdint.h
>> new file mode 100644
>> index 00000000..1bb147f2
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/stdint.h
>> @@ -0,0 +1,20 @@
>> +typedef int32_t int_fast16_t;
>> +typedef int32_t int_fast32_t;
>> +typedef uint32_t uint_fast16_t;
>> +typedef uint32_t uint_fast32_t;
>> +
>> +#define INT_FAST16_MIN INT32_MIN
>> +#define INT_FAST32_MIN INT32_MIN
>> +
>> +#define INT_FAST16_MAX INT32_MAX
>> +#define INT_FAST32_MAX INT32_MAX
>> +
>> +#define UINT_FAST16_MAX UINT32_MAX
>> +#define UINT_FAST32_MAX UINT32_MAX
>> +
>> +#define INTPTR_MIN INT64_MIN
>> +#define INTPTR_MAX INT64_MAX
>> +#define UINTPTR_MAX UINT64_MAX
>> +#define PTRDIFF_MIN INT64_MIN
>> +#define PTRDIFF_MAX INT64_MAX
>> +#define SIZE_MAX UINT64_MAX
>> diff --git a/arch/loongarch64/bits/syscall.h.in b/arch/loongarch64/bits/syscall.h.in
>> new file mode 100644
>> index 00000000..689ff36b
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/syscall.h.in
>> @@ -0,0 +1,303 @@
>> +#define __NR_io_setup 0
>> +#define __NR_io_destroy 1
>> +#define __NR_io_submit 2
>> +#define __NR_io_cancel 3
>> +#define __NR_io_getevents 4
>> +#define __NR_setxattr 5
>> +#define __NR_lsetxattr 6
>> +#define __NR_fsetxattr 7
>> +#define __NR_getxattr 8
>> +#define __NR_lgetxattr 9
>> +#define __NR_fgetxattr 10
>> +#define __NR_listxattr 11
>> +#define __NR_llistxattr 12
>> +#define __NR_flistxattr 13
>> +#define __NR_removexattr 14
>> +#define __NR_lremovexattr 15
>> +#define __NR_fremovexattr 16
>> +#define __NR_getcwd 17
>> +#define __NR_lookup_dcookie 18
>> +#define __NR_eventfd2 19
>> +#define __NR_epoll_create1 20
>> +#define __NR_epoll_ctl 21
>> +#define __NR_epoll_pwait 22
>> +#define __NR_dup 23
>> +#define __NR_dup3 24
>> +#define __NR3264_fcntl 25
>> +#define __NR_inotify_init1 26
>> +#define __NR_inotify_add_watch 27
>> +#define __NR_inotify_rm_watch 28
>> +#define __NR_ioctl 29
>> +#define __NR_ioprio_set 30
>> +#define __NR_ioprio_get 31
>> +#define __NR_flock 32
>> +#define __NR_mknodat 33
>> +#define __NR_mkdirat 34
>> +#define __NR_unlinkat 35
>> +#define __NR_symlinkat 36
>> +#define __NR_linkat 37
>> +#define __NR_umount2 39
>> +#define __NR_mount 40
>> +#define __NR_pivot_root 41
>> +#define __NR_nfsservctl 42
>> +#define __NR3264_statfs 43
>> +#define __NR3264_fstatfs 44
>> +#define __NR3264_truncate 45
>> +#define __NR3264_ftruncate 46
>> +#define __NR_fallocate 47
>> +#define __NR_faccessat 48
>> +#define __NR_chdir 49
>> +#define __NR_fchdir 50
>> +#define __NR_chroot 51
>> +#define __NR_fchmod 52
>> +#define __NR_fchmodat 53
>> +#define __NR_fchownat 54
>> +#define __NR_fchown 55
>> +#define __NR_openat 56
>> +#define __NR_close 57
>> +#define __NR_vhangup 58
>> +#define __NR_pipe2 59
>> +#define __NR_quotactl 60
>> +#define __NR_getdents64 61
>> +#define __NR3264_lseek 62
>> +#define __NR_read 63
>> +#define __NR_write 64
>> +#define __NR_readv 65
>> +#define __NR_writev 66
>> +#define __NR_pread64 67
>> +#define __NR_pwrite64 68
>> +#define __NR_preadv 69
>> +#define __NR_pwritev 70
>> +#define __NR3264_sendfile 71
>> +#define __NR_pselect6 72
>> +#define __NR_ppoll 73
>> +#define __NR_signalfd4 74
>> +#define __NR_vmsplice 75
>> +#define __NR_splice 76
>> +#define __NR_tee 77
>> +#define __NR_readlinkat 78
>> +#define __NR_sync 81
>> +#define __NR_fsync 82
>> +#define __NR_fdatasync 83
>> +#define __NR_sync_file_range 84
>> +#define __NR_timerfd_create 85
>> +#define __NR_timerfd_settime 86
>> +#define __NR_timerfd_gettime 87
>> +#define __NR_utimensat 88
>> +#define __NR_acct 89
>> +#define __NR_capget 90
>> +#define __NR_capset 91
>> +#define __NR_personality 92
>> +#define __NR_exit 93
>> +#define __NR_exit_group 94
>> +#define __NR_waitid 95
>> +#define __NR_set_tid_address 96
>> +#define __NR_unshare 97
>> +#define __NR_futex 98
>> +#define __NR_set_robust_list 99
>> +#define __NR_get_robust_list 100
>> +#define __NR_nanosleep 101
>> +#define __NR_getitimer 102
>> +#define __NR_setitimer 103
>> +#define __NR_kexec_load 104
>> +#define __NR_init_module 105
>> +#define __NR_delete_module 106
>> +#define __NR_timer_create 107
>> +#define __NR_timer_gettime 108
>> +#define __NR_timer_getoverrun 109
>> +#define __NR_timer_settime 110
>> +#define __NR_timer_delete 111
>> +#define __NR_clock_settime 112
>> +#define __NR_clock_gettime 113
>> +#define __NR_clock_getres 114
>> +#define __NR_clock_nanosleep 115
>> +#define __NR_syslog 116
>> +#define __NR_ptrace 117
>> +#define __NR_sched_setparam 118
>> +#define __NR_sched_setscheduler 119
>> +#define __NR_sched_getscheduler 120
>> +#define __NR_sched_getparam 121
>> +#define __NR_sched_setaffinity 122
>> +#define __NR_sched_getaffinity 123
>> +#define __NR_sched_yield 124
>> +#define __NR_sched_get_priority_max 125
>> +#define __NR_sched_get_priority_min 126
>> +#define __NR_sched_rr_get_interval 127
>> +#define __NR_restart_syscall 128
>> +#define __NR_kill 129
>> +#define __NR_tkill 130
>> +#define __NR_tgkill 131
>> +#define __NR_sigaltstack 132
>> +#define __NR_rt_sigsuspend 133
>> +#define __NR_rt_sigaction 134
>> +#define __NR_rt_sigprocmask 135
>> +#define __NR_rt_sigpending 136
>> +#define __NR_rt_sigtimedwait 137
>> +#define __NR_rt_sigqueueinfo 138
>> +#define __NR_rt_sigreturn 139
>> +#define __NR_setpriority 140
>> +#define __NR_getpriority 141
>> +#define __NR_reboot 142
>> +#define __NR_setregid 143
>> +#define __NR_setgid 144
>> +#define __NR_setreuid 145
>> +#define __NR_setuid 146
>> +#define __NR_setresuid 147
>> +#define __NR_getresuid 148
>> +#define __NR_setresgid 149
>> +#define __NR_getresgid 150
>> +#define __NR_setfsuid 151
>> +#define __NR_setfsgid 152
>> +#define __NR_times 153
>> +#define __NR_setpgid 154
>> +#define __NR_getpgid 155
>> +#define __NR_getsid 156
>> +#define __NR_setsid 157
>> +#define __NR_getgroups 158
>> +#define __NR_setgroups 159
>> +#define __NR_uname 160
>> +#define __NR_sethostname 161
>> +#define __NR_setdomainname 162
>> +#define __NR_getrlimit 163
>> +#define __NR_setrlimit 164
>> +#define __NR_getrusage 165
>> +#define __NR_umask 166
>> +#define __NR_prctl 167
>> +#define __NR_getcpu 168
>> +#define __NR_gettimeofday 169
>> +#define __NR_settimeofday 170
>> +#define __NR_adjtimex 171
>> +#define __NR_getpid 172
>> +#define __NR_getppid 173
>> +#define __NR_getuid 174
>> +#define __NR_geteuid 175
>> +#define __NR_getgid 176
>> +#define __NR_getegid 177
>> +#define __NR_gettid 178
>> +#define __NR_sysinfo 179
>> +#define __NR_mq_open 180
>> +#define __NR_mq_unlink 181
>> +#define __NR_mq_timedsend 182
>> +#define __NR_mq_timedreceive 183
>> +#define __NR_mq_notify 184
>> +#define __NR_mq_getsetattr 185
>> +#define __NR_msgget 186
>> +#define __NR_msgctl 187
>> +#define __NR_msgrcv 188
>> +#define __NR_msgsnd 189
>> +#define __NR_semget 190
>> +#define __NR_semctl 191
>> +#define __NR_semtimedop 192
>> +#define __NR_semop 193
>> +#define __NR_shmget 194
>> +#define __NR_shmctl 195
>> +#define __NR_shmat 196
>> +#define __NR_shmdt 197
>> +#define __NR_socket 198
>> +#define __NR_socketpair 199
>> +#define __NR_bind 200
>> +#define __NR_listen 201
>> +#define __NR_accept 202
>> +#define __NR_connect 203
>> +#define __NR_getsockname 204
>> +#define __NR_getpeername 205
>> +#define __NR_sendto 206
>> +#define __NR_recvfrom 207
>> +#define __NR_setsockopt 208
>> +#define __NR_getsockopt 209
>> +#define __NR_shutdown 210
>> +#define __NR_sendmsg 211
>> +#define __NR_recvmsg 212
>> +#define __NR_readahead 213
>> +#define __NR_brk 214
>> +#define __NR_munmap 215
>> +#define __NR_mremap 216
>> +#define __NR_add_key 217
>> +#define __NR_request_key 218
>> +#define __NR_keyctl 219
>> +#define __NR_clone 220
>> +#define __NR_execve 221
>> +#define __NR3264_mmap 222
>> +#define __NR3264_fadvise64 223
>> +#define __NR_swapon 224
>> +#define __NR_swapoff 225
>> +#define __NR_mprotect 226
>> +#define __NR_msync 227
>> +#define __NR_mlock 228
>> +#define __NR_munlock 229
>> +#define __NR_mlockall 230
>> +#define __NR_munlockall 231
>> +#define __NR_mincore 232
>> +#define __NR_madvise 233
>> +#define __NR_remap_file_pages 234
>> +#define __NR_mbind 235
>> +#define __NR_get_mempolicy 236
>> +#define __NR_set_mempolicy 237
>> +#define __NR_migrate_pages 238
>> +#define __NR_move_pages 239
>> +#define __NR_rt_tgsigqueueinfo 240
>> +#define __NR_perf_event_open 241
>> +#define __NR_accept4 242
>> +#define __NR_recvmmsg 243
>> +#define __NR_arch_specific_syscall 244
>> +#define __NR_wait4 260
>> +#define __NR_prlimit64 261
>> +#define __NR_fanotify_init 262
>> +#define __NR_fanotify_mark 263
>> +#define __NR_name_to_handle_at 264
>> +#define __NR_open_by_handle_at 265
>> +#define __NR_clock_adjtime 266
>> +#define __NR_syncfs 267
>> +#define __NR_setns 268
>> +#define __NR_sendmmsg 269
>> +#define __NR_process_vm_readv 270
>> +#define __NR_process_vm_writev 271
>> +#define __NR_kcmp 272
>> +#define __NR_finit_module 273
>> +#define __NR_sched_setattr 274
>> +#define __NR_sched_getattr 275
>> +#define __NR_renameat2 276
>> +#define __NR_seccomp 277
>> +#define __NR_getrandom 278
>> +#define __NR_memfd_create 279
>> +#define __NR_bpf 280
>> +#define __NR_execveat 281
>> +#define __NR_userfaultfd 282
>> +#define __NR_membarrier 283
>> +#define __NR_mlock2 284
>> +#define __NR_copy_file_range 285
>> +#define __NR_preadv2 286
>> +#define __NR_pwritev2 287
>> +#define __NR_pkey_mprotect 288
>> +#define __NR_pkey_alloc 289
>> +#define __NR_pkey_free 290
>> +#define __NR_statx 291
>> +#define __NR_io_pgetevents 292
>> +#define __NR_rseq 293
>> +#define __NR_kexec_file_load 294
>> +#define __NR_pidfd_send_signal 424
>> +#define __NR_io_uring_setup 425
>> +#define __NR_io_uring_enter 426
>> +#define __NR_io_uring_register 427
>> +#define __NR_open_tree 428
>> +#define __NR_move_mount 429
>> +#define __NR_fsopen 430
>> +#define __NR_fsconfig 431
>> +#define __NR_fsmount 432
>> +#define __NR_fspick 433
>> +#define __NR_pidfd_open 434
>> +#define __NR_clone3 435
>> +#define __NR_close_range 436
>> +#define __NR_openat2 437
>> +#define __NR_pidfd_getfd 438
>> +#define __NR_faccessat2 439
>> +#define __NR_process_madvise 440
>> +#define __NR_fcntl __NR3264_fcntl
>> +#define __NR_statfs __NR3264_statfs
>> +#define __NR_fstatfs __NR3264_fstatfs
>> +#define __NR_truncate __NR3264_truncate
>> +#define __NR_ftruncate __NR3264_ftruncate
>> +#define __NR_lseek __NR3264_lseek
>> +#define __NR_sendfile __NR3264_sendfile
>> +#define __NR_mmap __NR3264_mmap
>> +#define __NR_fadvise64 __NR3264_fadvise64
>> diff --git a/arch/loongarch64/bits/user.h b/arch/loongarch64/bits/user.h
>> new file mode 100644
>> index 00000000..4d4cd534
>> --- /dev/null
>> +++ b/arch/loongarch64/bits/user.h
>> @@ -0,0 +1,5 @@
>> +#define ELF_NGREG 45
>> +#define ELF_NFPREG 33
>> +
>> +typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
>> +typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
>> diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
>> new file mode 100644
>> index 00000000..c806a0bf
>> --- /dev/null
>> +++ b/arch/loongarch64/crt_arch.h
>> @@ -0,0 +1,14 @@
>> +__asm__(
>> +".text \n"
>> +".global " START "\n"
>> +".type " START ", @function\n"
>> +START ":\n"
>> +" add.w $fp, $r0,$r0\n"
>> +" or $a0, $sp, $zero\n"
>> +".weak _DYNAMIC\n"
>> +".hidden _DYNAMIC\n"
>> +" la.local $a1, _DYNAMIC\n"
>> +" addi.w $t7, $r0, -16\n"
>> +" and $sp, $sp, $t7\n"
>> +" b " START "_c\n"
>> +);
>> diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
>> new file mode 100644
>> index 00000000..95ee4c7a
>> --- /dev/null
>> +++ b/arch/loongarch64/pthread_arch.h
>> @@ -0,0 +1,13 @@
>> +static inline uintptr_t __get_tp()
>> +{
>> + register uintptr_t tp __asm__("tp");
>> + __asm__ ("" : "=r" (tp) );
>> + return tp;
>> +}
>> +
>> +#define TLS_ABOVE_TP
>> +#define GAP_ABOVE_TP 0
>> +
>> +#define DTP_OFFSET 0
>> +
>> +#define MC_PC pc
>> diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
>> new file mode 100644
>> index 00000000..2f759a34
>> --- /dev/null
>> +++ b/arch/loongarch64/reloc.h
>> @@ -0,0 +1,27 @@
>> +#ifdef __loongarch64_soft_float
>> +#define FP_SUFFIX "-sf"
>> +#else
>> +#define FP_SUFFIX ""
>> +#endif
>> +
>> +#define LDSO_ARCH "loongarch64" FP_SUFFIX
>> +
>> +#define TPOFF_K (0x0)
>> +
>> +#define REL_PLT R_LARCH_JUMP_SLOT
>> +#define REL_COPY R_LARCH_COPY
>> +#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
>> +#define REL_DTPOFF R_LARCH_TLS_DTPREL64
>> +#define REL_TPOFF R_LARCH_TLS_TPREL64
>> +#define REL_RELATIVE R_LARCH_RELATIVE
>> +#define REL_SYMBOLIC R_LARCH_64
>> +
>> +#define CRTJMP(pc,sp) __asm__ __volatile__( \
>> + "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
>> +
>> +#define GETFUNCSYM(fp, sym, got) __asm__ ( \
>> + ".hidden " #sym "\n" \
>> + ".align 8 \n" \
>> + " la.local $t1, "#sym" \n" \
>> + " or %0, $t1, $zero \n" \
>> + : "=r"(*(fp)) : : "memory" )
>> diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
>> new file mode 100644
>> index 00000000..ddd29578
>> --- /dev/null
>> +++ b/arch/loongarch64/syscall_arch.h
>> @@ -0,0 +1,137 @@
>> +#define __SYSCALL_LL_E(x) (x)
>> +#define __SYSCALL_LL_O(x) (x)
>> +
>> +#define SYSCALL_CLOBBERLIST \
>> + "$t0", "$t1", "$t2", "$t3", \
>> + "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
>> +
>> +static inline long __syscall0(long n)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0");
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "=r"(a0)
>> + : "r"(a7)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall1(long n, long a)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall2(long n, long a, long b)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> + register long a1 __asm__("$a1") = b;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7), "r"(a1)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall3(long n, long a, long b, long c)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> + register long a1 __asm__("$a1") = b;
>> + register long a2 __asm__("$a2") = c;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7), "r"(a1), "r"(a2)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall4(long n, long a, long b, long c, long d)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> + register long a1 __asm__("$a1") = b;
>> + register long a2 __asm__("$a2") = c;
>> + register long a3 __asm__("$a3") = d;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall5(long n, long a, long b, long c, long d, long e)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> + register long a1 __asm__("$a1") = b;
>> + register long a2 __asm__("$a2") = c;
>> + register long a3 __asm__("$a3") = d;
>> + register long a4 __asm__("$a4") = e;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> + register long a1 __asm__("$a1") = b;
>> + register long a2 __asm__("$a2") = c;
>> + register long a3 __asm__("$a3") = d;
>> + register long a4 __asm__("$a4") = e;
>> + register long a5 __asm__("$a5") = f;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
>> +{
>> + register long a7 __asm__("$a7") = n;
>> + register long a0 __asm__("$a0") = a;
>> + register long a1 __asm__("$a1") = b;
>> + register long a2 __asm__("$a2") = c;
>> + register long a3 __asm__("$a3") = d;
>> + register long a4 __asm__("$a4") = e;
>> + register long a5 __asm__("$a5") = f;
>> + register long a6 __asm__("$a6") = g;
>> +
>> + __asm__ __volatile__ (
>> + "syscall 0"
>> + : "+r"(a0)
>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
>> + : SYSCALL_CLOBBERLIST);
>> + return a0;
>> +}
>> +
>> +#define VDSO_USEFUL
>> +#define VDSO_CGT_SYM "__vdso_clock_gettime"
>> +#define VDSO_CGT_VER "LINUX_2.6"
>> +
>> +#define IPC_64 0
>> diff --git a/configure b/configure
>> index 6f5453f5..aac0c467 100755
>> --- a/configure
>> +++ b/configure
>> @@ -338,6 +338,7 @@ powerpc*|ppc*) ARCH=powerpc ;;
>> riscv64*) ARCH=riscv64 ;;
>> sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
>> s390x*) ARCH=s390x ;;
>> +loongarch64*) ARCH=loongarch64 ;;
>> unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;;
>> *) fail "$0: unknown or unsupported target \"$target\"" ;;
>> esac
>> diff --git a/crt/loongarch64/crti.s b/crt/loongarch64/crti.s
>> new file mode 100644
>> index 00000000..96a754d3
>> --- /dev/null
>> +++ b/crt/loongarch64/crti.s
>> @@ -0,0 +1,15 @@
>> +.section .init
>> +.global _init
>> +_init:
>> + addi.d $r3,$r3,-16
>> + st.d $fp,$r3,0
>> + st.d $ra,$r3,8
>> + addi.d $fp,$r3,16
>> +
>> +.section .fini
>> +.global _fini
>> +_fini:
>> + addi.d $r3,$r3,-16
>> + st.d $fp,$r3,0
>> + st.d $ra,$r3,8
>> + addi.d $fp,$r3,16
>> diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
>> new file mode 100644
>> index 00000000..bffb18f4
>> --- /dev/null
>> +++ b/crt/loongarch64/crtn.s
>> @@ -0,0 +1,12 @@
>> +.section .init
>> + ld.d $fp,$r3,0
>> + ld.d $ra,$r3,8
>> + addi.d $r3,$r3,16
>> + jirl $r0,$ra,0
>> +
>> +
>> +.section .fini
>> + ld.d $fp,$r3,0
>> + ld.d $ra,$r3,8
>> + addi.d $r3,$r3,16
>> + jirl $r0,$ra,0
>> diff --git a/include/elf.h b/include/elf.h
>> index 86e2f0bb..69b01ff4 100644
>> --- a/include/elf.h
>> +++ b/include/elf.h
>> @@ -697,6 +697,11 @@ typedef struct {
>> #define NT_MIPS_FP_MODE 0x801
>> #define NT_MIPS_MSA 0x802
>> #define NT_VERSION 1
>> +#define NT_LOONGARCH_CPUCFG 0xa00
>> +#define NT_LOONGARCH_CSR 0xa01
>> +#define NT_LOONGARCH_LSX 0xa02
>> +#define NT_LOONGARCH_LASX 0xa03
>> +#define NT_LOONGARCH_LBT 0xa04
>>
>>
>>
>> @@ -3288,6 +3293,67 @@ enum
>> #define R_RISCV_SET32 56
>> #define R_RISCV_32_PCREL 57
>>
>> +/* LoongISA ELF Flags */
>> +#define EM_LOONGARCH 258
>> +
>> +#define EF_LARCH_ABI 0x0003
>> +#define EF_LARCH_ABI_LP64 0x0003
>> +#define EF_LARCH_ABI_LP32 0x0001
>> +
>> +/* Loongarch specific dynamic relocations. */
>> +#define R_LARCH_NONE 0
>> +#define R_LARCH_32 1
>> +#define R_LARCH_64 2
>> +#define R_LARCH_RELATIVE 3
>> +#define R_LARCH_COPY 4
>> +#define R_LARCH_JUMP_SLOT 5
>> +#define R_LARCH_TLS_DTPMOD32 6
>> +#define R_LARCH_TLS_DTPMOD64 7
>> +#define R_LARCH_TLS_DTPREL32 8
>> +#define R_LARCH_TLS_DTPREL64 9
>> +#define R_LARCH_TLS_TPREL32 10
>> +#define R_LARCH_TLS_TPREL64 11
>> +#define R_LARCH_IRELATIVE 12
>> +#define R_LARCH_MARK_LA 20
>> +#define R_LARCH_MARK_PCREL 21
>> +#define R_LARCH_SOP_PUSH_PCREL 22
>> +#define R_LARCH_SOP_PUSH_ABSOLUTE 23
>> +#define R_LARCH_SOP_PUSH_DUP 24
>> +#define R_LARCH_SOP_PUSH_GPREL 25
>> +#define R_LARCH_SOP_PUSH_TLS_TPREL 26
>> +#define R_LARCH_SOP_PUSH_TLS_GOT 27
>> +#define R_LARCH_SOP_PUSH_TLS_GD 28
>> +#define R_LARCH_SOP_PUSH_PLT_PCREL 29
>> +#define R_LARCH_SOP_ASSERT 30
>> +#define R_LARCH_SOP_NOT 31
>> +#define R_LARCH_SOP_SUB 32
>> +#define R_LARCH_SOP_SL 33
>> +#define R_LARCH_SOP_SR 34
>> +#define R_LARCH_SOP_ADD 35
>> +#define R_LARCH_SOP_AND 36
>> +#define R_LARCH_SOP_IF_ELSE 37
>> +#define R_LARCH_SOP_POP_32_S_10_5 38
>> +#define R_LARCH_SOP_POP_32_U_10_12 39
>> +#define R_LARCH_SOP_POP_32_S_10_12 40
>> +#define R_LARCH_SOP_POP_32_S_10_16 41
>> +#define R_LARCH_SOP_POP_32_S_10_16_S2 42
>> +#define R_LARCH_SOP_POP_32_S_5_20 43
>> +#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
>> +#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
>> +#define R_LARCH_SOP_POP_32_U 46
>> +#define R_LARCH_ADD8 47
>> +#define R_LARCH_ADD16 48
>> +#define R_LARCH_ADD24 49
>> +#define R_LARCH_ADD32 50
>> +#define R_LARCH_ADD64 51
>> +#define R_LARCH_SUB8 52
>> +#define R_LARCH_SUB16 53
>> +#define R_LARCH_SUB24 54
>> +#define R_LARCH_SUB32 55
>> +#define R_LARCH_SUB64 56
>> +#define R_LARCH_GNU_VTINHERIT 57
>> +#define R_LARCH_GNU_VTENTRY 58
>> +
>> #ifdef __cplusplus
>> }
>> #endif
>> diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
>> new file mode 100644
>> index 00000000..049234be
>> --- /dev/null
>> +++ b/src/fenv/loongarch64/fenv.S
>> @@ -0,0 +1,72 @@
>> +#ifndef __loongarch_soft_float
>> +
>> +.global feclearexcept
>> +.type feclearexcept,@function
>> +feclearexcept:
>> + li.w $a1, 0x1f0000 //flags in 16-20 bit of fcsr0.
>> + and $a0, $a0, $a1
>> + movfcsr2gr $a1, $r0
>> + or $a1, $a1, $a0
>> + xor $a1, $a1, $a0
>> + movgr2fcsr $r0, $a1
>> + li.w $v0, 0
>> + jirl $zero, $ra, 0
>> +
>> +.global feraiseexcept
>> +.type feraiseexcept,@function
>> +feraiseexcept:
>> + li.w $a1, 0x1f0000
>> + and $a0, $a0, $a1
>> + movfcsr2gr $a1, $r0
>> + or $a1, $a1, $a0
>> + movgr2fcsr $r0, $a1
>> + li.w $v0, 0
>> + jirl $zero, $ra, 0
>> +
>> +.global fetestexcept
>> +.type fetestexcept,@function
>> +fetestexcept:
>> + li.w $a1, 0x1f0000
>> + and $a0, $a0, $a1
>> + movfcsr2gr $a1, $r0
>> + and $v0, $a1, $a0
>> + jirl $zero, $ra, 0
>> +
>> +.global fegetround
>> +.type fegetround,@function
>> +fegetround:
>> + movfcsr2gr $v0, $r0
>> + andi $v0, $v0, 0x300 //fcsr0.RM
>> + jirl $zero, $ra, 0
>> +
>> +.global __fesetround
>> +.hidden __fesetround
>> +.type __fesetround,@function
>> +__fesetround:
>> + movfcsr2gr $a1, $r0
>> + li.w $a2, -769 //0xfffffcff
>> + and $a1, $a1, $a2
>> + or $a1, $a1, $a0
>> + movgr2fcsr $r0, $a1
>> + li.w $v0, 0
>> + jirl $zero, $ra, 0
>> +
>> +.global fegetenv
>> +.type fegetenv,@function
>> +fegetenv:
>> + movfcsr2gr $a1, $r0
>> + st.w $a1, $a0, 0
>> + li.w $v0, 0
>> + jirl $zero, $ra, 0
>> +
>> +.global fesetenv
>> +.type fesetenv,@function
>> +fesetenv:
>> + addi.d $a1, $a0, 1
>> + beq $a1, $r0, 1f
>> + ld.w $a1, $a0, 0
>> +1: movgr2fcsr $r0, $a1
>> + li.w $v0, 0
>> + jirl $zero, $ra, 0
>> +
>> +#endif
>> diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
>> new file mode 100644
>> index 00000000..5f51ed85
>> --- /dev/null
>> +++ b/src/ldso/loongarch64/dlsym.s
>> @@ -0,0 +1,7 @@
>> +.global dlsym
>> +.hidden __dlsym
>> +.type dlsym,@function
>> +dlsym:
>> + move $a2, $ra
>> + la.global $r16, __dlsym
>> + jirl $r0, $r16, 0
>> diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
>> new file mode 100644
>> index 00000000..41d897ed
>> --- /dev/null
>> +++ b/src/setjmp/loongarch64/longjmp.S
>> @@ -0,0 +1,37 @@
>> +.global _longjmp
>> +.global longjmp
>> +.type _longjmp,@function
>> +.type longjmp,@function
>> +_longjmp:
>> +longjmp:
>> + add.d $t5, $a0, $zero
>> + add.d $v0, $a1, $zero
>> +
>> + bne $v0, $zero, 1f
>> + addi.d $v0, $v0, 1
>> +
>> +1:
>> + ld.d $ra, $t5, 0
>> + ld.d $sp, $t5, 8
>> + ld.d $r21,$t5, 16
>> + ld.d $fp, $t5, 24
>> + ld.d $s0, $t5, 32
>> + ld.d $s1, $t5, 40
>> + ld.d $s2, $t5, 48
>> + ld.d $s3, $t5, 56
>> + ld.d $s4, $t5, 64
>> + ld.d $s5, $t5, 72
>> + ld.d $s6, $t5, 80
>> + ld.d $s7, $t5, 88
>> + ld.d $s8, $t5, 96
>> +#ifndef __loongarch64_soft_float
>> + fld.d $fs0, $t5, 104
>> + fld.d $fs1, $t5, 112
>> + fld.d $fs2, $t5, 120
>> + fld.d $fs3, $t5, 128
>> + fld.d $fs4, $t5, 136
>> + fld.d $fs5, $t5, 144
>> + fld.d $fs6, $t5, 152
>> + fld.d $fs7, $t5, 160
>> +#endif
>> + jirl $zero, $ra, 0
>> diff --git a/src/setjmp/loongarch64/setjmp.S b/src/setjmp/loongarch64/setjmp.S
>> new file mode 100644
>> index 00000000..8dca3cb8
>> --- /dev/null
>> +++ b/src/setjmp/loongarch64/setjmp.S
>> @@ -0,0 +1,34 @@
>> +.global __setjmp
>> +.global _setjmp
>> +.global setjmp
>> +.type __setjmp,@function
>> +.type _setjmp,@function
>> +.type setjmp,@function
>> +__setjmp:
>> +_setjmp:
>> +setjmp:
>> + st.d $ra, $a0, 0
>> + st.d $sp, $a0, 8
>> + st.d $r21,$a0, 16
>> + st.d $fp, $a0, 24
>> + st.d $s0, $a0, 32
>> + st.d $s1, $a0, 40
>> + st.d $s2, $a0, 48
>> + st.d $s3, $a0, 56
>> + st.d $s4, $a0, 64
>> + st.d $s5, $a0, 72
>> + st.d $s6, $a0, 80
>> + st.d $s7, $a0, 88
>> + st.d $s8, $a0, 96
>> +#ifndef __loongarch64_soft_float
>> + fst.d $fs0, $a0, 104
>> + fst.d $fs1, $a0, 112
>> + fst.d $fs2, $a0, 120
>> + fst.d $fs3, $a0, 128
>> + fst.d $fs4, $a0, 136
>> + fst.d $fs5, $a0, 144
>> + fst.d $fs6, $a0, 152
>> + fst.d $fs7, $a0, 160
>> +#endif
>> + xor $v0, $v0, $v0
>> + jirl $zero, $ra, 0
>> diff --git a/src/signal/loongarch64/restore.s b/src/signal/loongarch64/restore.s
>> new file mode 100644
>> index 00000000..9bf015a0
>> --- /dev/null
>> +++ b/src/signal/loongarch64/restore.s
>> @@ -0,0 +1,10 @@
>> +.global __restore_rt
>> +.global __restore
>> +.hidden __restore_rt
>> +.hidden __restore
>> +.type __restore_rt,@function
>> +.type __restore,@function
>> +__restore_rt:
>> +__restore:
>> + ori $a7, $zero, 139
>> + syscall 0
>> diff --git a/src/signal/loongarch64/sigsetjmp.s b/src/signal/loongarch64/sigsetjmp.s
>> new file mode 100644
>> index 00000000..d53f334a
>> --- /dev/null
>> +++ b/src/signal/loongarch64/sigsetjmp.s
>> @@ -0,0 +1,29 @@
>> +.global sigsetjmp
>> +.global __sigsetjmp
>> +.type sigsetjmp,@function
>> +.type __sigsetjmp,@function
>> +sigsetjmp:
>> +__sigsetjmp:
>> + or $t5, $a0, $zero
>> + or $t6, $a1, $zero
>> +
>> + # comparing save mask with 0, if equals to 0 then
>> + # sigsetjmp is equal to setjmp.
>> + beq $t6, $zero, 1f
>> + st.d $ra, $t5, 168
>> +
>> + # save base of got so that we can use it later
>> + # once we return from 'longjmp'
>> + la.global $t8, setjmp
>> + jirl $ra, $t8, 0
>> +
>> + or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
>> + ld.d $ra, $t5, 168 # Restore ra of sigsetjmp
>> + or $a0, $t5, $zero
>> +
>> +.hidden __sigsetjmp_tail
>> + la.global $t8, __sigsetjmp_tail
>> + jirl $zero, $t8, 0
>> +1:
>> + la.global $t8, setjmp
>> + jirl $zero, $t8, 0
>> diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
>> new file mode 100644
>> index 00000000..421cd381
>> --- /dev/null
>> +++ b/src/thread/loongarch64/__set_thread_area.s
>> @@ -0,0 +1,7 @@
>> +.global __set_thread_area
>> +.hidden __set_thread_area
>> +.type __set_thread_area,@function
>> +__set_thread_area:
>> + or $tp, $a0, $zero
>> + ori $a0, $zero, 0
>> + jirl $zero, $ra, 0
>> diff --git a/src/thread/loongarch64/__unmapself.s b/src/thread/loongarch64/__unmapself.s
>> new file mode 100644
>> index 00000000..b77e6d1d
>> --- /dev/null
>> +++ b/src/thread/loongarch64/__unmapself.s
>> @@ -0,0 +1,7 @@
>> +.global __unmapself
>> +.type __unmapself, @function
>> +__unmapself:
>> + li.d $a7, 215
>> + syscall 0 # call munmap
>> + li.d $a7, 93
>> + syscall 0 # call exit
>> diff --git a/src/thread/loongarch64/clone.s b/src/thread/loongarch64/clone.s
>> new file mode 100644
>> index 00000000..ec920c7b
>> --- /dev/null
>> +++ b/src/thread/loongarch64/clone.s
>> @@ -0,0 +1,47 @@
>> +#__clone(func, stack, flags, arg, ptid, tls, ctid)
>> +# a0, a1, a2, a3, a4, a5, a6
>> +# sys_clone3(struct clone_args *cl_args, size_t size)
>> +# a0 a1
>> +
>> +.global __clone
>> +.hidden __clone
>> +.type __clone,@function
>> +__clone:
>> + # Save function pointer and argument pointer on new thread stack
>> + addi.d $a1, $a1, -16
>> + st.d $a0, $a1, 0 # save function pointer
>> + st.d $a3, $a1, 8 # save argument pointer
>> +
>> + li.d $t0, ~0x004000ff # mask CSIGNAL and CLONE_DETACHED
>> + and $t1, $a2, $t0 # cl_args.flags
>> + li.d $t0, 0x000000ff # CSIGNAL
>> + and $t2, $a2, $t0 # cl_args.exit_signal
>> +
>> + bstrins.d $sp, $zero, 2, 0 # align stack to 8 bytes
>> + addi.d $sp, $sp, -88 # struct clone_args
>> + st.d $t1, $sp, 0 # flags
>> + st.d $a4, $sp, 8 # pidfd
>> + st.d $a6, $sp, 16 # child_tid
>> + st.d $a4, $sp, 24 # parent_tid
>> + st.d $t2, $sp, 32 # exit_signal
>> + st.d $a1, $sp, 40 # stack
>> + st.d $zero, $sp, 48 # stack_size
>> + st.d $a5, $sp, 56 # tls
>> + st.d $zero, $sp, 64 # set_tid
>> + st.d $zero, $sp, 72 # set_tid_size
>> + st.d $zero, $sp, 80 # cgroup
>> +
>> + move $a0, $sp
>> + li.d $a1, 88
>> + li.d $a7, 435 # __NR_clone3
>> + syscall 0 # call clone3
>> +
>> + beqz $a0, 1f # whether child process
>> + addi.d $sp, $sp, 88
>> + jirl $zero, $ra, 0 # parent process return
>> +1:
>> + ld.d $t8, $sp, 0 # function pointer
>> + ld.d $a0, $sp, 8 # argument pointer
>> + jirl $ra, $t8, 0 # call the user's function
>> + li.d $a7, 93
>> + syscall 0 # child process exit
>> diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
>> new file mode 100644
>> index 00000000..3903ed2c
>> --- /dev/null
>> +++ b/src/thread/loongarch64/syscall_cp.s
>> @@ -0,0 +1,29 @@
>> +.global __cp_begin
>> +.hidden __cp_begin
>> +.global __cp_end
>> +.hidden __cp_end
>> +.global __cp_cancel
>> +.hidden __cp_cancel
>> +.hidden __cancel
>> +.global __syscall_cp_asm
>> +.hidden __syscall_cp_asm
>> +.type __syscall_cp_asm,@function
>> +
>> +__syscall_cp_asm:
>> +__cp_begin:
>> + ld.w $a0, $a0, 0
>> + bnez $a0, __cp_cancel
>> + or $t8, $a1, $zero # reserve system call number
>> + or $a0, $a2, $zero
>> + or $a1, $a3, $zero
>> + or $a2, $a4, $zero
>> + or $a3, $a5, $zero
>> + or $a4, $a6, $zero
>> + or $a5, $a7, $zero
>> + or $a7, $t8, $zero
>> + syscall 0
>> +__cp_end:
>> + jirl $zero, $ra, 0
>> +__cp_cancel:
>> + la.local $t8, __cancel
>> + jirl $zero, $t8, 0
>> --
>> 2.34.1
>>
[-- Attachment #2: 0001-add-loongarch64-port-v4.patch --]
[-- Type: text/x-patch, Size: 47132 bytes --]
From 5535c500f137c3cb9ad36c7c96e7aaca440c85bd Mon Sep 17 00:00:00 2001
From: wanghongliang <wanghongliang@loongson.cn>
Date: Wed, 8 Jun 2022 01:42:12 +0800
Subject: [PATCH] add loongarch64 port v4.
Author: xiaojuanZhai <zhaixiaojuan@loongson.cn>
Author: meidanLi <limeidan@loongson.cn>
Author: guoqiChen <chenguoqi@loongson.cn>
Author: xiaolinZhao <zhaoxiaolin@loongson.cn>
Author: Fanpeng <fanpeng@loongson.cn>
Author: jiantaoShan <shanjiantao@loongson.cn>
Author: xuhuiQiang <qiangxuhui@loongson.cn>
Author: jingyunHua <huajingyun@loongson.cn>
Author: liuxue <liuxue@loongson.cn>
Author: wanghongliang <wanghongliang@loongson.cn
Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
---
arch/loongarch64/atomic_arch.h | 53 ++++
arch/loongarch64/bits/alltypes.h.in | 18 ++
arch/loongarch64/bits/fenv.h | 20 ++
arch/loongarch64/bits/float.h | 16 ++
arch/loongarch64/bits/hwcap.h | 14 +
arch/loongarch64/bits/posix.h | 2 +
arch/loongarch64/bits/ptrace.h | 4 +
arch/loongarch64/bits/reg.h | 66 +++++
arch/loongarch64/bits/setjmp.h | 1 +
arch/loongarch64/bits/signal.h | 80 ++++++
arch/loongarch64/bits/stat.h | 18 ++
arch/loongarch64/bits/stdint.h | 20 ++
arch/loongarch64/bits/syscall.h.in | 303 +++++++++++++++++++++
arch/loongarch64/bits/user.h | 5 +
arch/loongarch64/crt_arch.h | 14 +
arch/loongarch64/pthread_arch.h | 13 +
arch/loongarch64/reloc.h | 27 ++
arch/loongarch64/syscall_arch.h | 137 ++++++++++
configure | 1 +
crt/loongarch64/crti.s | 15 +
crt/loongarch64/crtn.s | 12 +
include/elf.h | 66 +++++
src/fenv/loongarch64/fenv.S | 72 +++++
src/ldso/loongarch64/dlsym.s | 7 +
src/setjmp/loongarch64/longjmp.S | 37 +++
src/setjmp/loongarch64/setjmp.S | 34 +++
src/signal/loongarch64/restore.s | 10 +
src/signal/loongarch64/sigsetjmp.s | 29 ++
src/thread/loongarch64/__set_thread_area.s | 7 +
src/thread/loongarch64/__unmapself.s | 7 +
src/thread/loongarch64/clone.s | 47 ++++
src/thread/loongarch64/syscall_cp.s | 29 ++
32 files changed, 1184 insertions(+)
create mode 100644 arch/loongarch64/atomic_arch.h
create mode 100644 arch/loongarch64/bits/alltypes.h.in
create mode 100644 arch/loongarch64/bits/fenv.h
create mode 100644 arch/loongarch64/bits/float.h
create mode 100644 arch/loongarch64/bits/hwcap.h
create mode 100644 arch/loongarch64/bits/posix.h
create mode 100644 arch/loongarch64/bits/ptrace.h
create mode 100644 arch/loongarch64/bits/reg.h
create mode 100644 arch/loongarch64/bits/setjmp.h
create mode 100644 arch/loongarch64/bits/signal.h
create mode 100644 arch/loongarch64/bits/stat.h
create mode 100644 arch/loongarch64/bits/stdint.h
create mode 100644 arch/loongarch64/bits/syscall.h.in
create mode 100644 arch/loongarch64/bits/user.h
create mode 100644 arch/loongarch64/crt_arch.h
create mode 100644 arch/loongarch64/pthread_arch.h
create mode 100644 arch/loongarch64/reloc.h
create mode 100644 arch/loongarch64/syscall_arch.h
create mode 100644 crt/loongarch64/crti.s
create mode 100644 crt/loongarch64/crtn.s
create mode 100644 src/fenv/loongarch64/fenv.S
create mode 100644 src/ldso/loongarch64/dlsym.s
create mode 100644 src/setjmp/loongarch64/longjmp.S
create mode 100644 src/setjmp/loongarch64/setjmp.S
create mode 100644 src/signal/loongarch64/restore.s
create mode 100644 src/signal/loongarch64/sigsetjmp.s
create mode 100644 src/thread/loongarch64/__set_thread_area.s
create mode 100644 src/thread/loongarch64/__unmapself.s
create mode 100644 src/thread/loongarch64/clone.s
create mode 100644 src/thread/loongarch64/syscall_cp.s
diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
new file mode 100644
index 00000000..bf4805c9
--- /dev/null
+++ b/arch/loongarch64/atomic_arch.h
@@ -0,0 +1,53 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+ int v;
+ __asm__ __volatile__ (
+ "ll.w %0, %1"
+ : "=r"(v)
+ : "ZC"(*p));
+ return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+ int r;
+ __asm__ __volatile__ (
+ "sc.w %0, %1"
+ : "=r"(r), "=ZC"(*p)
+ : "0"(v) : "memory");
+ return r;
+}
+
+#define a_ll_p a_ll_p
+static inline void *a_ll_p(volatile void *p)
+{
+ void *v;
+ __asm__ __volatile__ (
+ "ll.d %0, %1"
+ : "=r"(v)
+ : "ZC"(*(void *volatile *)p));
+ return v;
+}
+
+#define a_sc_p a_sc_p
+static inline int a_sc_p(volatile void *p, void *v)
+{
+ long r;
+ __asm__ __volatile__ (
+ "sc.d %0, %1"
+ : "=r"(r), "=ZC"(*(void *volatile *)p)
+ : "0"(v)
+ : "memory");
+ return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+ __asm__ __volatile__ ("dbar 0" : : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
new file mode 100644
index 00000000..d1807aca
--- /dev/null
+++ b/arch/loongarch64/bits/alltypes.h.in
@@ -0,0 +1,18 @@
+#define _Addr long
+#define _Int64 long
+#define _Reg long
+
+#define __BYTE_ORDER 1234
+#define __LONG_MAX 0x7fffffffffffffffL
+
+#ifndef __cplusplus
+TYPEDEF int wchar_t;
+#endif
+
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+
+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
+
+TYPEDEF unsigned nlink_t;
+TYPEDEF int blksize_t;
diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
new file mode 100644
index 00000000..264cafb5
--- /dev/null
+++ b/arch/loongarch64/bits/fenv.h
@@ -0,0 +1,20 @@
+#define FE_INEXACT 0x010000
+#define FE_UNDERFLOW 0x020000
+#define FE_OVERFLOW 0x040000
+#define FE_DIVBYZERO 0x080000
+#define FE_INVALID 0x100000
+
+#define FE_ALL_EXCEPT 0x1F0000
+
+#define FE_TONEAREST 0x000
+#define FE_TOWARDZERO 0x100
+#define FE_UPWARD 0x200
+#define FE_DOWNWARD 0x300
+
+typedef unsigned fexcept_t;
+
+typedef struct {
+ unsigned __cw;
+} fenv_t;
+
+#define FE_DFL_ENV ((const fenv_t *) -1)
diff --git a/arch/loongarch64/bits/float.h b/arch/loongarch64/bits/float.h
new file mode 100644
index 00000000..719c7908
--- /dev/null
+++ b/arch/loongarch64/bits/float.h
@@ -0,0 +1,16 @@
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
+#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
+#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
+#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
+
+#define LDBL_MANT_DIG 113
+#define LDBL_MIN_EXP (-16381)
+#define LDBL_MAX_EXP 16384
+
+#define LDBL_DIG 33
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_10_EXP 4932
+
+#define DECIMAL_DIG 36
diff --git a/arch/loongarch64/bits/hwcap.h b/arch/loongarch64/bits/hwcap.h
new file mode 100644
index 00000000..c9fa08f6
--- /dev/null
+++ b/arch/loongarch64/bits/hwcap.h
@@ -0,0 +1,14 @@
+/* HWCAP - Hardware Capabilities.
+ * Hardware information is not clear at present, leave it blank.
+ */
+#define HWCAP_LOONGARCH_CPUCFG (1 << 0)
+#define HWCAP_LOONGARCH_FPU (1 << 1)
+#define HWCAP_LOONGARCH_LSX (1 << 2) /* support 128bit vectors*/
+#define HWCAP_LOONGARCH_LASX (1 << 3) /* support 256bit vectors*/
+#define HWCAP_LOONGARCH_LBT (1 << 4) /* support LBT*/
+#define HWCAP_LOONGARCH_LVZ (1 << 5) /* support virtualization expansion*/
+#define HWCAP_LOONGARCH_CRC32 (1 << 7) /* support CRC32 check*/
+#define HWCAP_LOONGARCH_AES (1 << 6)
+#define HWCAP_LOONGARCH_SHA1 (1 << 8)
+#define HWCAP_LOONGARCH_SHA2 (1 << 9)
+#define HWCAP_LOONGARCH_SHA3 (1 << 10)
diff --git a/arch/loongarch64/bits/posix.h b/arch/loongarch64/bits/posix.h
new file mode 100644
index 00000000..8068ce98
--- /dev/null
+++ b/arch/loongarch64/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_LP64_OFF64 1
+#define _POSIX_V7_LP64_OFF64 1
diff --git a/arch/loongarch64/bits/ptrace.h b/arch/loongarch64/bits/ptrace.h
new file mode 100644
index 00000000..741fc668
--- /dev/null
+++ b/arch/loongarch64/bits/ptrace.h
@@ -0,0 +1,4 @@
+#define PTRACE_GET_THREAD_AREA 25
+#define PTRACE_SET_THREAD_AREA 26
+#define PTRACE_GET_WATCH_REGS 0xd0
+#define PTRACE_SET_WATCH_REGS 0xd1
diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
new file mode 100644
index 00000000..5d3f92c5
--- /dev/null
+++ b/arch/loongarch64/bits/reg.h
@@ -0,0 +1,66 @@
+#undef __WORDSIZE
+#define __WORDSIZE 64
+#define LOONGARCH64_EF_R0 0
+#define LOONGARCH64_EF_R1 1
+#define LOONGARCH64_EF_R2 2
+#define LOONGARCH64_EF_R3 3
+#define LOONGARCH64_EF_R4 4
+#define LOONGARCH64_EF_R5 5
+#define LOONGARCH64_EF_R6 6
+#define LOONGARCH64_EF_R7 7
+#define LOONGARCH64_EF_R8 8
+#define LOONGARCH64_EF_R9 9
+#define LOONGARCH64_EF_R10 10
+#define LOONGARCH64_EF_R11 11
+#define LOONGARCH64_EF_R12 12
+#define LOONGARCH64_EF_R13 13
+#define LOONGARCH64_EF_R14 14
+#define LOONGARCH64_EF_R15 15
+#define LOONGARCH64_EF_R16 16
+#define LOONGARCH64_EF_R17 17
+#define LOONGARCH64_EF_R18 18
+#define LOONGARCH64_EF_R19 19
+#define LOONGARCH64_EF_R20 20
+#define LOONGARCH64_EF_R21 21
+#define LOONGARCH64_EF_R22 22
+#define LOONGARCH64_EF_R23 23
+#define LOONGARCH64_EF_R24 24
+#define LOONGARCH64_EF_R25 25
+#define LOONGARCH64_EF_R26 26
+#define LOONGARCH64_EF_R27 27
+#define LOONGARCH64_EF_R28 28
+#define LOONGARCH64_EF_R29 29
+#define LOONGARCH64_EF_R30 30
+#define LOONGARCH64_EF_R31 31
+
+#define LOONGARCH64_EF_SIZE 304 /* size in bytes */
+
+#define EF_R0 LOONGARCH64_EF_R0
+#define EF_R1 LOONGARCH64_EF_R1
+#define EF_R2 LOONGARCH64_EF_R2
+#define EF_R3 LOONGARCH64_EF_R3
+#define EF_R4 LOONGARCH64_EF_R4
+#define EF_R5 LOONGARCH64_EF_R5
+#define EF_R6 LOONGARCH64_EF_R6
+#define EF_R7 LOONGARCH64_EF_R7
+#define EF_R8 LOONGARCH64_EF_R8
+#define EF_R9 LOONGARCH64_EF_R9
+#define EF_R10 LOONGARCH64_EF_R10
+#define EF_R11 LOONGARCH64_EF_R11
+#define EF_R12 LOONGARCH64_EF_R12
+#define EF_R13 LOONGARCH64_EF_R13
+#define EF_R14 LOONGARCH64_EF_R14
+#define EF_R15 LOONGARCH64_EF_R15
+#define EF_R16 LOONGARCH64_EF_R16
+#define EF_R17 LOONGARCH64_EF_R17
+#define EF_R18 LOONGARCH64_EF_R18
+#define EF_R19 LOONGARCH64_EF_R19
+#define EF_R20 LOONGARCH64_EF_R20
+#define EF_R21 LOONGARCH64_EF_R21
+#define EF_R22 LOONGARCH64_EF_R22
+#define EF_R23 LOONGARCH64_EF_R23
+#define EF_R24 LOONGARCH64_EF_R24
+#define EF_R25 LOONGARCH64_EF_R25
+#define EF_R26 LOONGARCH64_EF_R26
+#define EF_R27 LOONGARCH64_EF_R27
+#define EF_R28 LOONGARCH64_EF_R28
diff --git a/arch/loongarch64/bits/setjmp.h b/arch/loongarch64/bits/setjmp.h
new file mode 100644
index 00000000..f4a7f8a3
--- /dev/null
+++ b/arch/loongarch64/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long long __jmp_buf[22];
diff --git a/arch/loongarch64/bits/signal.h b/arch/loongarch64/bits/signal.h
new file mode 100644
index 00000000..4db790e7
--- /dev/null
+++ b/arch/loongarch64/bits/signal.h
@@ -0,0 +1,80 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MINSIGSTKSZ 4096
+#define SIGSTKSZ 16384
+#endif
+
+typedef unsigned long greg_t, gregset_t[32];
+
+typedef struct sigcontext {
+ unsigned long pc;
+ gregset_t gregs;
+ unsigned int flags;
+ unsigned long extcontext[];
+} mcontext_t;
+
+struct sigaltstack {
+ void *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+};
+
+typedef struct __ucontext
+{
+ unsigned long uc_flags;
+ struct __ucontext *uc_link;
+ stack_t uc_stack;
+ sigset_t uc_sigmask;
+ long __uc_pad;
+ mcontext_t uc_mcontext;
+} ucontext_t;
+
+#define SA_NOCLDSTOP 1
+#define SA_NOCLDWAIT 2
+#define SA_SIGINFO 4
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+#define SA_RESTORER 0x04000000
+
+#endif
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT SIGABRT
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 65
diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
new file mode 100644
index 00000000..b7f4221b
--- /dev/null
+++ b/arch/loongarch64/bits/stat.h
@@ -0,0 +1,18 @@
+struct stat {
+ dev_t st_dev;
+ ino_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ dev_t st_rdev;
+ unsigned long __pad;
+ off_t st_size;
+ blksize_t st_blksize;
+ int __pad2;
+ blkcnt_t st_blocks;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned __unused[2];
+};
diff --git a/arch/loongarch64/bits/stdint.h b/arch/loongarch64/bits/stdint.h
new file mode 100644
index 00000000..1bb147f2
--- /dev/null
+++ b/arch/loongarch64/bits/stdint.h
@@ -0,0 +1,20 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST32_MIN INT32_MIN
+
+#define INT_FAST16_MAX INT32_MAX
+#define INT_FAST32_MAX INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INTPTR_MIN INT64_MIN
+#define INTPTR_MAX INT64_MAX
+#define UINTPTR_MAX UINT64_MAX
+#define PTRDIFF_MIN INT64_MIN
+#define PTRDIFF_MAX INT64_MAX
+#define SIZE_MAX UINT64_MAX
diff --git a/arch/loongarch64/bits/syscall.h.in b/arch/loongarch64/bits/syscall.h.in
new file mode 100644
index 00000000..689ff36b
--- /dev/null
+++ b/arch/loongarch64/bits/syscall.h.in
@@ -0,0 +1,303 @@
+#define __NR_io_setup 0
+#define __NR_io_destroy 1
+#define __NR_io_submit 2
+#define __NR_io_cancel 3
+#define __NR_io_getevents 4
+#define __NR_setxattr 5
+#define __NR_lsetxattr 6
+#define __NR_fsetxattr 7
+#define __NR_getxattr 8
+#define __NR_lgetxattr 9
+#define __NR_fgetxattr 10
+#define __NR_listxattr 11
+#define __NR_llistxattr 12
+#define __NR_flistxattr 13
+#define __NR_removexattr 14
+#define __NR_lremovexattr 15
+#define __NR_fremovexattr 16
+#define __NR_getcwd 17
+#define __NR_lookup_dcookie 18
+#define __NR_eventfd2 19
+#define __NR_epoll_create1 20
+#define __NR_epoll_ctl 21
+#define __NR_epoll_pwait 22
+#define __NR_dup 23
+#define __NR_dup3 24
+#define __NR3264_fcntl 25
+#define __NR_inotify_init1 26
+#define __NR_inotify_add_watch 27
+#define __NR_inotify_rm_watch 28
+#define __NR_ioctl 29
+#define __NR_ioprio_set 30
+#define __NR_ioprio_get 31
+#define __NR_flock 32
+#define __NR_mknodat 33
+#define __NR_mkdirat 34
+#define __NR_unlinkat 35
+#define __NR_symlinkat 36
+#define __NR_linkat 37
+#define __NR_umount2 39
+#define __NR_mount 40
+#define __NR_pivot_root 41
+#define __NR_nfsservctl 42
+#define __NR3264_statfs 43
+#define __NR3264_fstatfs 44
+#define __NR3264_truncate 45
+#define __NR3264_ftruncate 46
+#define __NR_fallocate 47
+#define __NR_faccessat 48
+#define __NR_chdir 49
+#define __NR_fchdir 50
+#define __NR_chroot 51
+#define __NR_fchmod 52
+#define __NR_fchmodat 53
+#define __NR_fchownat 54
+#define __NR_fchown 55
+#define __NR_openat 56
+#define __NR_close 57
+#define __NR_vhangup 58
+#define __NR_pipe2 59
+#define __NR_quotactl 60
+#define __NR_getdents64 61
+#define __NR3264_lseek 62
+#define __NR_read 63
+#define __NR_write 64
+#define __NR_readv 65
+#define __NR_writev 66
+#define __NR_pread64 67
+#define __NR_pwrite64 68
+#define __NR_preadv 69
+#define __NR_pwritev 70
+#define __NR3264_sendfile 71
+#define __NR_pselect6 72
+#define __NR_ppoll 73
+#define __NR_signalfd4 74
+#define __NR_vmsplice 75
+#define __NR_splice 76
+#define __NR_tee 77
+#define __NR_readlinkat 78
+#define __NR_sync 81
+#define __NR_fsync 82
+#define __NR_fdatasync 83
+#define __NR_sync_file_range 84
+#define __NR_timerfd_create 85
+#define __NR_timerfd_settime 86
+#define __NR_timerfd_gettime 87
+#define __NR_utimensat 88
+#define __NR_acct 89
+#define __NR_capget 90
+#define __NR_capset 91
+#define __NR_personality 92
+#define __NR_exit 93
+#define __NR_exit_group 94
+#define __NR_waitid 95
+#define __NR_set_tid_address 96
+#define __NR_unshare 97
+#define __NR_futex 98
+#define __NR_set_robust_list 99
+#define __NR_get_robust_list 100
+#define __NR_nanosleep 101
+#define __NR_getitimer 102
+#define __NR_setitimer 103
+#define __NR_kexec_load 104
+#define __NR_init_module 105
+#define __NR_delete_module 106
+#define __NR_timer_create 107
+#define __NR_timer_gettime 108
+#define __NR_timer_getoverrun 109
+#define __NR_timer_settime 110
+#define __NR_timer_delete 111
+#define __NR_clock_settime 112
+#define __NR_clock_gettime 113
+#define __NR_clock_getres 114
+#define __NR_clock_nanosleep 115
+#define __NR_syslog 116
+#define __NR_ptrace 117
+#define __NR_sched_setparam 118
+#define __NR_sched_setscheduler 119
+#define __NR_sched_getscheduler 120
+#define __NR_sched_getparam 121
+#define __NR_sched_setaffinity 122
+#define __NR_sched_getaffinity 123
+#define __NR_sched_yield 124
+#define __NR_sched_get_priority_max 125
+#define __NR_sched_get_priority_min 126
+#define __NR_sched_rr_get_interval 127
+#define __NR_restart_syscall 128
+#define __NR_kill 129
+#define __NR_tkill 130
+#define __NR_tgkill 131
+#define __NR_sigaltstack 132
+#define __NR_rt_sigsuspend 133
+#define __NR_rt_sigaction 134
+#define __NR_rt_sigprocmask 135
+#define __NR_rt_sigpending 136
+#define __NR_rt_sigtimedwait 137
+#define __NR_rt_sigqueueinfo 138
+#define __NR_rt_sigreturn 139
+#define __NR_setpriority 140
+#define __NR_getpriority 141
+#define __NR_reboot 142
+#define __NR_setregid 143
+#define __NR_setgid 144
+#define __NR_setreuid 145
+#define __NR_setuid 146
+#define __NR_setresuid 147
+#define __NR_getresuid 148
+#define __NR_setresgid 149
+#define __NR_getresgid 150
+#define __NR_setfsuid 151
+#define __NR_setfsgid 152
+#define __NR_times 153
+#define __NR_setpgid 154
+#define __NR_getpgid 155
+#define __NR_getsid 156
+#define __NR_setsid 157
+#define __NR_getgroups 158
+#define __NR_setgroups 159
+#define __NR_uname 160
+#define __NR_sethostname 161
+#define __NR_setdomainname 162
+#define __NR_getrlimit 163
+#define __NR_setrlimit 164
+#define __NR_getrusage 165
+#define __NR_umask 166
+#define __NR_prctl 167
+#define __NR_getcpu 168
+#define __NR_gettimeofday 169
+#define __NR_settimeofday 170
+#define __NR_adjtimex 171
+#define __NR_getpid 172
+#define __NR_getppid 173
+#define __NR_getuid 174
+#define __NR_geteuid 175
+#define __NR_getgid 176
+#define __NR_getegid 177
+#define __NR_gettid 178
+#define __NR_sysinfo 179
+#define __NR_mq_open 180
+#define __NR_mq_unlink 181
+#define __NR_mq_timedsend 182
+#define __NR_mq_timedreceive 183
+#define __NR_mq_notify 184
+#define __NR_mq_getsetattr 185
+#define __NR_msgget 186
+#define __NR_msgctl 187
+#define __NR_msgrcv 188
+#define __NR_msgsnd 189
+#define __NR_semget 190
+#define __NR_semctl 191
+#define __NR_semtimedop 192
+#define __NR_semop 193
+#define __NR_shmget 194
+#define __NR_shmctl 195
+#define __NR_shmat 196
+#define __NR_shmdt 197
+#define __NR_socket 198
+#define __NR_socketpair 199
+#define __NR_bind 200
+#define __NR_listen 201
+#define __NR_accept 202
+#define __NR_connect 203
+#define __NR_getsockname 204
+#define __NR_getpeername 205
+#define __NR_sendto 206
+#define __NR_recvfrom 207
+#define __NR_setsockopt 208
+#define __NR_getsockopt 209
+#define __NR_shutdown 210
+#define __NR_sendmsg 211
+#define __NR_recvmsg 212
+#define __NR_readahead 213
+#define __NR_brk 214
+#define __NR_munmap 215
+#define __NR_mremap 216
+#define __NR_add_key 217
+#define __NR_request_key 218
+#define __NR_keyctl 219
+#define __NR_clone 220
+#define __NR_execve 221
+#define __NR3264_mmap 222
+#define __NR3264_fadvise64 223
+#define __NR_swapon 224
+#define __NR_swapoff 225
+#define __NR_mprotect 226
+#define __NR_msync 227
+#define __NR_mlock 228
+#define __NR_munlock 229
+#define __NR_mlockall 230
+#define __NR_munlockall 231
+#define __NR_mincore 232
+#define __NR_madvise 233
+#define __NR_remap_file_pages 234
+#define __NR_mbind 235
+#define __NR_get_mempolicy 236
+#define __NR_set_mempolicy 237
+#define __NR_migrate_pages 238
+#define __NR_move_pages 239
+#define __NR_rt_tgsigqueueinfo 240
+#define __NR_perf_event_open 241
+#define __NR_accept4 242
+#define __NR_recvmmsg 243
+#define __NR_arch_specific_syscall 244
+#define __NR_wait4 260
+#define __NR_prlimit64 261
+#define __NR_fanotify_init 262
+#define __NR_fanotify_mark 263
+#define __NR_name_to_handle_at 264
+#define __NR_open_by_handle_at 265
+#define __NR_clock_adjtime 266
+#define __NR_syncfs 267
+#define __NR_setns 268
+#define __NR_sendmmsg 269
+#define __NR_process_vm_readv 270
+#define __NR_process_vm_writev 271
+#define __NR_kcmp 272
+#define __NR_finit_module 273
+#define __NR_sched_setattr 274
+#define __NR_sched_getattr 275
+#define __NR_renameat2 276
+#define __NR_seccomp 277
+#define __NR_getrandom 278
+#define __NR_memfd_create 279
+#define __NR_bpf 280
+#define __NR_execveat 281
+#define __NR_userfaultfd 282
+#define __NR_membarrier 283
+#define __NR_mlock2 284
+#define __NR_copy_file_range 285
+#define __NR_preadv2 286
+#define __NR_pwritev2 287
+#define __NR_pkey_mprotect 288
+#define __NR_pkey_alloc 289
+#define __NR_pkey_free 290
+#define __NR_statx 291
+#define __NR_io_pgetevents 292
+#define __NR_rseq 293
+#define __NR_kexec_file_load 294
+#define __NR_pidfd_send_signal 424
+#define __NR_io_uring_setup 425
+#define __NR_io_uring_enter 426
+#define __NR_io_uring_register 427
+#define __NR_open_tree 428
+#define __NR_move_mount 429
+#define __NR_fsopen 430
+#define __NR_fsconfig 431
+#define __NR_fsmount 432
+#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
+#define __NR_close_range 436
+#define __NR_openat2 437
+#define __NR_pidfd_getfd 438
+#define __NR_faccessat2 439
+#define __NR_process_madvise 440
+#define __NR_fcntl __NR3264_fcntl
+#define __NR_statfs __NR3264_statfs
+#define __NR_fstatfs __NR3264_fstatfs
+#define __NR_truncate __NR3264_truncate
+#define __NR_ftruncate __NR3264_ftruncate
+#define __NR_lseek __NR3264_lseek
+#define __NR_sendfile __NR3264_sendfile
+#define __NR_mmap __NR3264_mmap
+#define __NR_fadvise64 __NR3264_fadvise64
diff --git a/arch/loongarch64/bits/user.h b/arch/loongarch64/bits/user.h
new file mode 100644
index 00000000..4d4cd534
--- /dev/null
+++ b/arch/loongarch64/bits/user.h
@@ -0,0 +1,5 @@
+#define ELF_NGREG 45
+#define ELF_NFPREG 33
+
+typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
+typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
new file mode 100644
index 00000000..c806a0bf
--- /dev/null
+++ b/arch/loongarch64/crt_arch.h
@@ -0,0 +1,14 @@
+__asm__(
+".text \n"
+".global " START "\n"
+".type " START ", @function\n"
+START ":\n"
+" add.w $fp, $r0,$r0\n"
+" or $a0, $sp, $zero\n"
+".weak _DYNAMIC\n"
+".hidden _DYNAMIC\n"
+" la.local $a1, _DYNAMIC\n"
+" addi.w $t7, $r0, -16\n"
+" and $sp, $sp, $t7\n"
+" b " START "_c\n"
+);
diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
new file mode 100644
index 00000000..95ee4c7a
--- /dev/null
+++ b/arch/loongarch64/pthread_arch.h
@@ -0,0 +1,13 @@
+static inline uintptr_t __get_tp()
+{
+ register uintptr_t tp __asm__("tp");
+ __asm__ ("" : "=r" (tp) );
+ return tp;
+}
+
+#define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
+
+#define DTP_OFFSET 0
+
+#define MC_PC pc
diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
new file mode 100644
index 00000000..2f759a34
--- /dev/null
+++ b/arch/loongarch64/reloc.h
@@ -0,0 +1,27 @@
+#ifdef __loongarch64_soft_float
+#define FP_SUFFIX "-sf"
+#else
+#define FP_SUFFIX ""
+#endif
+
+#define LDSO_ARCH "loongarch64" FP_SUFFIX
+
+#define TPOFF_K (0x0)
+
+#define REL_PLT R_LARCH_JUMP_SLOT
+#define REL_COPY R_LARCH_COPY
+#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
+#define REL_DTPOFF R_LARCH_TLS_DTPREL64
+#define REL_TPOFF R_LARCH_TLS_TPREL64
+#define REL_RELATIVE R_LARCH_RELATIVE
+#define REL_SYMBOLIC R_LARCH_64
+
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+ "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+ ".hidden " #sym "\n" \
+ ".align 8 \n" \
+ " la.local $t1, "#sym" \n" \
+ " or %0, $t1, $zero \n" \
+ : "=r"(*(fp)) : : "memory" )
diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
new file mode 100644
index 00000000..ddd29578
--- /dev/null
+++ b/arch/loongarch64/syscall_arch.h
@@ -0,0 +1,137 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define SYSCALL_CLOBBERLIST \
+ "$t0", "$t1", "$t2", "$t3", \
+ "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
+
+static inline long __syscall0(long n)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0");
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "=r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall1(long n, long a)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+ register long a6 __asm__("$a6") = g;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
+
+#define IPC_64 0
diff --git a/configure b/configure
index 6f5453f5..aac0c467 100755
--- a/configure
+++ b/configure
@@ -338,6 +338,7 @@ powerpc*|ppc*) ARCH=powerpc ;;
riscv64*) ARCH=riscv64 ;;
sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
s390x*) ARCH=s390x ;;
+loongarch64*) ARCH=loongarch64 ;;
unknown) fail "$0: unable to detect target arch; try $0 --target=..." ;;
*) fail "$0: unknown or unsupported target \"$target\"" ;;
esac
diff --git a/crt/loongarch64/crti.s b/crt/loongarch64/crti.s
new file mode 100644
index 00000000..96a754d3
--- /dev/null
+++ b/crt/loongarch64/crti.s
@@ -0,0 +1,15 @@
+.section .init
+.global _init
+_init:
+ addi.d $r3,$r3,-16
+ st.d $fp,$r3,0
+ st.d $ra,$r3,8
+ addi.d $fp,$r3,16
+
+.section .fini
+.global _fini
+_fini:
+ addi.d $r3,$r3,-16
+ st.d $fp,$r3,0
+ st.d $ra,$r3,8
+ addi.d $fp,$r3,16
diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
new file mode 100644
index 00000000..bffb18f4
--- /dev/null
+++ b/crt/loongarch64/crtn.s
@@ -0,0 +1,12 @@
+.section .init
+ ld.d $fp,$r3,0
+ ld.d $ra,$r3,8
+ addi.d $r3,$r3,16
+ jirl $r0,$ra,0
+
+
+.section .fini
+ ld.d $fp,$r3,0
+ ld.d $ra,$r3,8
+ addi.d $r3,$r3,16
+ jirl $r0,$ra,0
diff --git a/include/elf.h b/include/elf.h
index 86e2f0bb..69b01ff4 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -697,6 +697,11 @@ typedef struct {
#define NT_MIPS_FP_MODE 0x801
#define NT_MIPS_MSA 0x802
#define NT_VERSION 1
+#define NT_LOONGARCH_CPUCFG 0xa00
+#define NT_LOONGARCH_CSR 0xa01
+#define NT_LOONGARCH_LSX 0xa02
+#define NT_LOONGARCH_LASX 0xa03
+#define NT_LOONGARCH_LBT 0xa04
@@ -3288,6 +3293,67 @@ enum
#define R_RISCV_SET32 56
#define R_RISCV_32_PCREL 57
+/* LoongISA ELF Flags */
+#define EM_LOONGARCH 258
+
+#define EF_LARCH_ABI 0x0003
+#define EF_LARCH_ABI_LP64 0x0003
+#define EF_LARCH_ABI_LP32 0x0001
+
+/* Loongarch specific dynamic relocations. */
+#define R_LARCH_NONE 0
+#define R_LARCH_32 1
+#define R_LARCH_64 2
+#define R_LARCH_RELATIVE 3
+#define R_LARCH_COPY 4
+#define R_LARCH_JUMP_SLOT 5
+#define R_LARCH_TLS_DTPMOD32 6
+#define R_LARCH_TLS_DTPMOD64 7
+#define R_LARCH_TLS_DTPREL32 8
+#define R_LARCH_TLS_DTPREL64 9
+#define R_LARCH_TLS_TPREL32 10
+#define R_LARCH_TLS_TPREL64 11
+#define R_LARCH_IRELATIVE 12
+#define R_LARCH_MARK_LA 20
+#define R_LARCH_MARK_PCREL 21
+#define R_LARCH_SOP_PUSH_PCREL 22
+#define R_LARCH_SOP_PUSH_ABSOLUTE 23
+#define R_LARCH_SOP_PUSH_DUP 24
+#define R_LARCH_SOP_PUSH_GPREL 25
+#define R_LARCH_SOP_PUSH_TLS_TPREL 26
+#define R_LARCH_SOP_PUSH_TLS_GOT 27
+#define R_LARCH_SOP_PUSH_TLS_GD 28
+#define R_LARCH_SOP_PUSH_PLT_PCREL 29
+#define R_LARCH_SOP_ASSERT 30
+#define R_LARCH_SOP_NOT 31
+#define R_LARCH_SOP_SUB 32
+#define R_LARCH_SOP_SL 33
+#define R_LARCH_SOP_SR 34
+#define R_LARCH_SOP_ADD 35
+#define R_LARCH_SOP_AND 36
+#define R_LARCH_SOP_IF_ELSE 37
+#define R_LARCH_SOP_POP_32_S_10_5 38
+#define R_LARCH_SOP_POP_32_U_10_12 39
+#define R_LARCH_SOP_POP_32_S_10_12 40
+#define R_LARCH_SOP_POP_32_S_10_16 41
+#define R_LARCH_SOP_POP_32_S_10_16_S2 42
+#define R_LARCH_SOP_POP_32_S_5_20 43
+#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
+#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
+#define R_LARCH_SOP_POP_32_U 46
+#define R_LARCH_ADD8 47
+#define R_LARCH_ADD16 48
+#define R_LARCH_ADD24 49
+#define R_LARCH_ADD32 50
+#define R_LARCH_ADD64 51
+#define R_LARCH_SUB8 52
+#define R_LARCH_SUB16 53
+#define R_LARCH_SUB24 54
+#define R_LARCH_SUB32 55
+#define R_LARCH_SUB64 56
+#define R_LARCH_GNU_VTINHERIT 57
+#define R_LARCH_GNU_VTENTRY 58
+
#ifdef __cplusplus
}
#endif
diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
new file mode 100644
index 00000000..049234be
--- /dev/null
+++ b/src/fenv/loongarch64/fenv.S
@@ -0,0 +1,72 @@
+#ifndef __loongarch_soft_float
+
+.global feclearexcept
+.type feclearexcept,@function
+feclearexcept:
+ li.w $a1, 0x1f0000 //flags in 16-20 bit of fcsr0.
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ xor $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global feraiseexcept
+.type feraiseexcept,@function
+feraiseexcept:
+ li.w $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fetestexcept
+.type fetestexcept,@function
+fetestexcept:
+ li.w $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ and $v0, $a1, $a0
+ jirl $zero, $ra, 0
+
+.global fegetround
+.type fegetround,@function
+fegetround:
+ movfcsr2gr $v0, $r0
+ andi $v0, $v0, 0x300 //fcsr0.RM
+ jirl $zero, $ra, 0
+
+.global __fesetround
+.hidden __fesetround
+.type __fesetround,@function
+__fesetround:
+ movfcsr2gr $a1, $r0
+ li.w $a2, -769 //0xfffffcff
+ and $a1, $a1, $a2
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fegetenv
+.type fegetenv,@function
+fegetenv:
+ movfcsr2gr $a1, $r0
+ st.w $a1, $a0, 0
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+.global fesetenv
+.type fesetenv,@function
+fesetenv:
+ addi.d $a1, $a0, 1
+ beq $a1, $r0, 1f
+ ld.w $a1, $a0, 0
+1: movgr2fcsr $r0, $a1
+ li.w $v0, 0
+ jirl $zero, $ra, 0
+
+#endif
diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
new file mode 100644
index 00000000..5f51ed85
--- /dev/null
+++ b/src/ldso/loongarch64/dlsym.s
@@ -0,0 +1,7 @@
+.global dlsym
+.hidden __dlsym
+.type dlsym,@function
+dlsym:
+ move $a2, $ra
+ la.global $r16, __dlsym
+ jirl $r0, $r16, 0
diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
new file mode 100644
index 00000000..41d897ed
--- /dev/null
+++ b/src/setjmp/loongarch64/longjmp.S
@@ -0,0 +1,37 @@
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+ add.d $t5, $a0, $zero
+ add.d $v0, $a1, $zero
+
+ bne $v0, $zero, 1f
+ addi.d $v0, $v0, 1
+
+1:
+ ld.d $ra, $t5, 0
+ ld.d $sp, $t5, 8
+ ld.d $r21,$t5, 16
+ ld.d $fp, $t5, 24
+ ld.d $s0, $t5, 32
+ ld.d $s1, $t5, 40
+ ld.d $s2, $t5, 48
+ ld.d $s3, $t5, 56
+ ld.d $s4, $t5, 64
+ ld.d $s5, $t5, 72
+ ld.d $s6, $t5, 80
+ ld.d $s7, $t5, 88
+ ld.d $s8, $t5, 96
+#ifndef __loongarch64_soft_float
+ fld.d $fs0, $t5, 104
+ fld.d $fs1, $t5, 112
+ fld.d $fs2, $t5, 120
+ fld.d $fs3, $t5, 128
+ fld.d $fs4, $t5, 136
+ fld.d $fs5, $t5, 144
+ fld.d $fs6, $t5, 152
+ fld.d $fs7, $t5, 160
+#endif
+ jirl $zero, $ra, 0
diff --git a/src/setjmp/loongarch64/setjmp.S b/src/setjmp/loongarch64/setjmp.S
new file mode 100644
index 00000000..8dca3cb8
--- /dev/null
+++ b/src/setjmp/loongarch64/setjmp.S
@@ -0,0 +1,34 @@
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+ st.d $ra, $a0, 0
+ st.d $sp, $a0, 8
+ st.d $r21,$a0, 16
+ st.d $fp, $a0, 24
+ st.d $s0, $a0, 32
+ st.d $s1, $a0, 40
+ st.d $s2, $a0, 48
+ st.d $s3, $a0, 56
+ st.d $s4, $a0, 64
+ st.d $s5, $a0, 72
+ st.d $s6, $a0, 80
+ st.d $s7, $a0, 88
+ st.d $s8, $a0, 96
+#ifndef __loongarch64_soft_float
+ fst.d $fs0, $a0, 104
+ fst.d $fs1, $a0, 112
+ fst.d $fs2, $a0, 120
+ fst.d $fs3, $a0, 128
+ fst.d $fs4, $a0, 136
+ fst.d $fs5, $a0, 144
+ fst.d $fs6, $a0, 152
+ fst.d $fs7, $a0, 160
+#endif
+ xor $v0, $v0, $v0
+ jirl $zero, $ra, 0
diff --git a/src/signal/loongarch64/restore.s b/src/signal/loongarch64/restore.s
new file mode 100644
index 00000000..9bf015a0
--- /dev/null
+++ b/src/signal/loongarch64/restore.s
@@ -0,0 +1,10 @@
+.global __restore_rt
+.global __restore
+.hidden __restore_rt
+.hidden __restore
+.type __restore_rt,@function
+.type __restore,@function
+__restore_rt:
+__restore:
+ ori $a7, $zero, 139
+ syscall 0
diff --git a/src/signal/loongarch64/sigsetjmp.s b/src/signal/loongarch64/sigsetjmp.s
new file mode 100644
index 00000000..d53f334a
--- /dev/null
+++ b/src/signal/loongarch64/sigsetjmp.s
@@ -0,0 +1,29 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+ or $t5, $a0, $zero
+ or $t6, $a1, $zero
+
+ # comparing save mask with 0, if equals to 0 then
+ # sigsetjmp is equal to setjmp.
+ beq $t6, $zero, 1f
+ st.d $ra, $t5, 168
+
+ # save base of got so that we can use it later
+ # once we return from 'longjmp'
+ la.global $t8, setjmp
+ jirl $ra, $t8, 0
+
+ or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
+ ld.d $ra, $t5, 168 # Restore ra of sigsetjmp
+ or $a0, $t5, $zero
+
+.hidden __sigsetjmp_tail
+ la.global $t8, __sigsetjmp_tail
+ jirl $zero, $t8, 0
+1:
+ la.global $t8, setjmp
+ jirl $zero, $t8, 0
diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
new file mode 100644
index 00000000..421cd381
--- /dev/null
+++ b/src/thread/loongarch64/__set_thread_area.s
@@ -0,0 +1,7 @@
+.global __set_thread_area
+.hidden __set_thread_area
+.type __set_thread_area,@function
+__set_thread_area:
+ or $tp, $a0, $zero
+ ori $a0, $zero, 0
+ jirl $zero, $ra, 0
diff --git a/src/thread/loongarch64/__unmapself.s b/src/thread/loongarch64/__unmapself.s
new file mode 100644
index 00000000..b77e6d1d
--- /dev/null
+++ b/src/thread/loongarch64/__unmapself.s
@@ -0,0 +1,7 @@
+.global __unmapself
+.type __unmapself, @function
+__unmapself:
+ li.d $a7, 215
+ syscall 0 # call munmap
+ li.d $a7, 93
+ syscall 0 # call exit
diff --git a/src/thread/loongarch64/clone.s b/src/thread/loongarch64/clone.s
new file mode 100644
index 00000000..ec920c7b
--- /dev/null
+++ b/src/thread/loongarch64/clone.s
@@ -0,0 +1,47 @@
+#__clone(func, stack, flags, arg, ptid, tls, ctid)
+# a0, a1, a2, a3, a4, a5, a6
+# sys_clone3(struct clone_args *cl_args, size_t size)
+# a0 a1
+
+.global __clone
+.hidden __clone
+.type __clone,@function
+__clone:
+ # Save function pointer and argument pointer on new thread stack
+ addi.d $a1, $a1, -16
+ st.d $a0, $a1, 0 # save function pointer
+ st.d $a3, $a1, 8 # save argument pointer
+
+ li.d $t0, ~0x004000ff # mask CSIGNAL and CLONE_DETACHED
+ and $t1, $a2, $t0 # cl_args.flags
+ li.d $t0, 0x000000ff # CSIGNAL
+ and $t2, $a2, $t0 # cl_args.exit_signal
+
+ bstrins.d $sp, $zero, 2, 0 # align stack to 8 bytes
+ addi.d $sp, $sp, -88 # struct clone_args
+ st.d $t1, $sp, 0 # flags
+ st.d $a4, $sp, 8 # pidfd
+ st.d $a6, $sp, 16 # child_tid
+ st.d $a4, $sp, 24 # parent_tid
+ st.d $t2, $sp, 32 # exit_signal
+ st.d $a1, $sp, 40 # stack
+ st.d $zero, $sp, 48 # stack_size
+ st.d $a5, $sp, 56 # tls
+ st.d $zero, $sp, 64 # set_tid
+ st.d $zero, $sp, 72 # set_tid_size
+ st.d $zero, $sp, 80 # cgroup
+
+ move $a0, $sp
+ li.d $a1, 88
+ li.d $a7, 435 # __NR_clone3
+ syscall 0 # call clone3
+
+ beqz $a0, 1f # whether child process
+ addi.d $sp, $sp, 88
+ jirl $zero, $ra, 0 # parent process return
+1:
+ ld.d $t8, $sp, 0 # function pointer
+ ld.d $a0, $sp, 8 # argument pointer
+ jirl $ra, $t8, 0 # call the user's function
+ li.d $a7, 93
+ syscall 0 # child process exit
diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
new file mode 100644
index 00000000..3903ed2c
--- /dev/null
+++ b/src/thread/loongarch64/syscall_cp.s
@@ -0,0 +1,29 @@
+.global __cp_begin
+.hidden __cp_begin
+.global __cp_end
+.hidden __cp_end
+.global __cp_cancel
+.hidden __cp_cancel
+.hidden __cancel
+.global __syscall_cp_asm
+.hidden __syscall_cp_asm
+.type __syscall_cp_asm,@function
+
+__syscall_cp_asm:
+__cp_begin:
+ ld.w $a0, $a0, 0
+ bnez $a0, __cp_cancel
+ or $t8, $a1, $zero # reserve system call number
+ or $a0, $a2, $zero
+ or $a1, $a3, $zero
+ or $a2, $a4, $zero
+ or $a3, $a5, $zero
+ or $a4, $a6, $zero
+ or $a5, $a7, $zero
+ or $a7, $t8, $zero
+ syscall 0
+__cp_end:
+ jirl $zero, $ra, 0
+__cp_cancel:
+ la.local $t8, __cancel
+ jirl $zero, $t8, 0
--
2.34.1
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [musl] Re: add loongarch64 port v4
2022-07-05 12:56 ` 王洪亮
@ 2022-07-16 8:13 ` 王洪亮
0 siblings, 0 replies; 7+ messages in thread
From: 王洪亮 @ 2022-07-16 8:13 UTC (permalink / raw)
To: musl
[-- Attachment #1: Type: text/plain, Size: 65950 bytes --]
Hi, Rich
I'm Looking forward to your reply,thank you.
在 2022/7/5 下午8:56, 王洪亮 写道:
> Hi, Rich
>
> Have you reviewed it?
> This patch has some new problems?
>
> 在 2022/6/23 上午9:59, Rich Felker 写道:
>> Hi. I just haven't gotten to reviewing it again. I'll try to take a
>> good look in the next day or two.
>>
>> On Thu, Jun 23, 2022 at 09:30:55AM +0800, 王洪亮 wrote:
>>> Hi, Rich
>>>
>>> this patch has any other problems need to be modified?
>>>
>>> Looking forward to your reply. thanks.
>>>
>>>
>>> Hongliang Wang
>>>
>>> 在 2022/6/20 下午5:49, 王洪亮 写道:
>>>> Hi, Rich
>>>>
>>>> 1. this patch has any other problems need to be modified?
>>>>
>>>> 2.what are the suggestions for support LA32 later?
>>>>
>>>>
>>>> 在 2022/6/14 下午3:23, 王洪亮 写道:
>>>>> Hi,
>>>>>
>>>>> 1. this patch has any other problems need to be modified?
>>>>>
>>>>> 2.what are the suggestions for support LA32?
>>>>>
>>>>>
>>>>> 在 2022/6/8 上午11:56, 王洪亮 写道:
>>>>>> Hi,
>>>>>>
>>>>>> I published loongarch64 port v4 in
>>>>>> https://github.com/loongson/musl/tree/loongarch-v2.0.
>>>>>>
>>>>>> fixed the following problems:
>>>>>>
>>>>>> 1.fixed the extension field of struct mcontext
>>>>>>
>>>>>> 2.removed arch/loongarch64/kstat.h
>>>>>>
>>>>>> 3.deleted the incorrect definition in arch/loongarch64/reloc.h
>>>>>>
>>>>>> 4.optimize dlsym
>>>>>>
>>>>>> please code review if there are any other problems ? thanks.
>>>>>>
>>>>>> I have one questions:
>>>>>>
>>>>>> Through add "long__uc_pad" in struct ucontext_t to meet the
>>>>>> extcontext[] 16 bytes alignment,
>>>>>>
>>>>>> if run in loongarch32, this method not meet the 16 bytes
>>>>>> alignment requirement. how to do it ?
>>>>>>
>>>>>>
>>>>>> Hongliang Wang.
>>>>>>
>>> >From 5535c500f137c3cb9ad36c7c96e7aaca440c85bd Mon Sep 17 00:00:00 2001
>>> From: wanghongliang <wanghongliang@loongson.cn>
>>> Date: Wed, 8 Jun 2022 01:42:12 +0800
>>> Subject: [PATCH] add loongarch64 port v4.
>>>
>>> Author: xiaojuanZhai <zhaixiaojuan@loongson.cn>
>>> Author: meidanLi <limeidan@loongson.cn>
>>> Author: guoqiChen <chenguoqi@loongson.cn>
>>> Author: xiaolinZhao <zhaoxiaolin@loongson.cn>
>>> Author: Fanpeng <fanpeng@loongson.cn>
>>> Author: jiantaoShan <shanjiantao@loongson.cn>
>>> Author: xuhuiQiang <qiangxuhui@loongson.cn>
>>> Author: jingyunHua <huajingyun@loongson.cn>
>>> Author: liuxue <liuxue@loongson.cn>
>>> Author: wanghongliang <wanghongliang@loongson.cn
>>>
>>> Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
>>> ---
>>> arch/loongarch64/atomic_arch.h | 53 ++++
>>> arch/loongarch64/bits/alltypes.h.in | 18 ++
>>> arch/loongarch64/bits/fenv.h | 20 ++
>>> arch/loongarch64/bits/float.h | 16 ++
>>> arch/loongarch64/bits/hwcap.h | 14 +
>>> arch/loongarch64/bits/posix.h | 2 +
>>> arch/loongarch64/bits/ptrace.h | 4 +
>>> arch/loongarch64/bits/reg.h | 66 +++++
>>> arch/loongarch64/bits/setjmp.h | 1 +
>>> arch/loongarch64/bits/signal.h | 80 ++++++
>>> arch/loongarch64/bits/stat.h | 18 ++
>>> arch/loongarch64/bits/stdint.h | 20 ++
>>> arch/loongarch64/bits/syscall.h.in | 303
>>> +++++++++++++++++++++
>>> arch/loongarch64/bits/user.h | 5 +
>>> arch/loongarch64/crt_arch.h | 14 +
>>> arch/loongarch64/pthread_arch.h | 13 +
>>> arch/loongarch64/reloc.h | 27 ++
>>> arch/loongarch64/syscall_arch.h | 137 ++++++++++
>>> configure | 1 +
>>> crt/loongarch64/crti.s | 15 +
>>> crt/loongarch64/crtn.s | 12 +
>>> include/elf.h | 66 +++++
>>> src/fenv/loongarch64/fenv.S | 72 +++++
>>> src/ldso/loongarch64/dlsym.s | 7 +
>>> src/setjmp/loongarch64/longjmp.S | 37 +++
>>> src/setjmp/loongarch64/setjmp.S | 34 +++
>>> src/signal/loongarch64/restore.s | 10 +
>>> src/signal/loongarch64/sigsetjmp.s | 29 ++
>>> src/thread/loongarch64/__set_thread_area.s | 7 +
>>> src/thread/loongarch64/__unmapself.s | 7 +
>>> src/thread/loongarch64/clone.s | 47 ++++
>>> src/thread/loongarch64/syscall_cp.s | 29 ++
>>> 32 files changed, 1184 insertions(+)
>>> create mode 100644 arch/loongarch64/atomic_arch.h
>>> create mode 100644 arch/loongarch64/bits/alltypes.h.in
>>> create mode 100644 arch/loongarch64/bits/fenv.h
>>> create mode 100644 arch/loongarch64/bits/float.h
>>> create mode 100644 arch/loongarch64/bits/hwcap.h
>>> create mode 100644 arch/loongarch64/bits/posix.h
>>> create mode 100644 arch/loongarch64/bits/ptrace.h
>>> create mode 100644 arch/loongarch64/bits/reg.h
>>> create mode 100644 arch/loongarch64/bits/setjmp.h
>>> create mode 100644 arch/loongarch64/bits/signal.h
>>> create mode 100644 arch/loongarch64/bits/stat.h
>>> create mode 100644 arch/loongarch64/bits/stdint.h
>>> create mode 100644 arch/loongarch64/bits/syscall.h.in
>>> create mode 100644 arch/loongarch64/bits/user.h
>>> create mode 100644 arch/loongarch64/crt_arch.h
>>> create mode 100644 arch/loongarch64/pthread_arch.h
>>> create mode 100644 arch/loongarch64/reloc.h
>>> create mode 100644 arch/loongarch64/syscall_arch.h
>>> create mode 100644 crt/loongarch64/crti.s
>>> create mode 100644 crt/loongarch64/crtn.s
>>> create mode 100644 src/fenv/loongarch64/fenv.S
>>> create mode 100644 src/ldso/loongarch64/dlsym.s
>>> create mode 100644 src/setjmp/loongarch64/longjmp.S
>>> create mode 100644 src/setjmp/loongarch64/setjmp.S
>>> create mode 100644 src/signal/loongarch64/restore.s
>>> create mode 100644 src/signal/loongarch64/sigsetjmp.s
>>> create mode 100644 src/thread/loongarch64/__set_thread_area.s
>>> create mode 100644 src/thread/loongarch64/__unmapself.s
>>> create mode 100644 src/thread/loongarch64/clone.s
>>> create mode 100644 src/thread/loongarch64/syscall_cp.s
>>>
>>> diff --git a/arch/loongarch64/atomic_arch.h
>>> b/arch/loongarch64/atomic_arch.h
>>> new file mode 100644
>>> index 00000000..bf4805c9
>>> --- /dev/null
>>> +++ b/arch/loongarch64/atomic_arch.h
>>> @@ -0,0 +1,53 @@
>>> +#define a_ll a_ll
>>> +static inline int a_ll(volatile int *p)
>>> +{
>>> + int v;
>>> + __asm__ __volatile__ (
>>> + "ll.w %0, %1"
>>> + : "=r"(v)
>>> + : "ZC"(*p));
>>> + return v;
>>> +}
>>> +
>>> +#define a_sc a_sc
>>> +static inline int a_sc(volatile int *p, int v)
>>> +{
>>> + int r;
>>> + __asm__ __volatile__ (
>>> + "sc.w %0, %1"
>>> + : "=r"(r), "=ZC"(*p)
>>> + : "0"(v) : "memory");
>>> + return r;
>>> +}
>>> +
>>> +#define a_ll_p a_ll_p
>>> +static inline void *a_ll_p(volatile void *p)
>>> +{
>>> + void *v;
>>> + __asm__ __volatile__ (
>>> + "ll.d %0, %1"
>>> + : "=r"(v)
>>> + : "ZC"(*(void *volatile *)p));
>>> + return v;
>>> +}
>>> +
>>> +#define a_sc_p a_sc_p
>>> +static inline int a_sc_p(volatile void *p, void *v)
>>> +{
>>> + long r;
>>> + __asm__ __volatile__ (
>>> + "sc.d %0, %1"
>>> + : "=r"(r), "=ZC"(*(void *volatile *)p)
>>> + : "0"(v)
>>> + : "memory");
>>> + return r;
>>> +}
>>> +
>>> +#define a_barrier a_barrier
>>> +static inline void a_barrier()
>>> +{
>>> + __asm__ __volatile__ ("dbar 0" : : : "memory");
>>> +}
>>> +
>>> +#define a_pre_llsc a_barrier
>>> +#define a_post_llsc a_barrier
>>> diff --git a/arch/loongarch64/bits/alltypes.h.in
>>> b/arch/loongarch64/bits/alltypes.h.in
>>> new file mode 100644
>>> index 00000000..d1807aca
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/alltypes.h.in
>>> @@ -0,0 +1,18 @@
>>> +#define _Addr long
>>> +#define _Int64 long
>>> +#define _Reg long
>>> +
>>> +#define __BYTE_ORDER 1234
>>> +#define __LONG_MAX 0x7fffffffffffffffL
>>> +
>>> +#ifndef __cplusplus
>>> +TYPEDEF int wchar_t;
>>> +#endif
>>> +
>>> +TYPEDEF float float_t;
>>> +TYPEDEF double double_t;
>>> +
>>> +TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
>>> +
>>> +TYPEDEF unsigned nlink_t;
>>> +TYPEDEF int blksize_t;
>>> diff --git a/arch/loongarch64/bits/fenv.h
>>> b/arch/loongarch64/bits/fenv.h
>>> new file mode 100644
>>> index 00000000..264cafb5
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/fenv.h
>>> @@ -0,0 +1,20 @@
>>> +#define FE_INEXACT 0x010000
>>> +#define FE_UNDERFLOW 0x020000
>>> +#define FE_OVERFLOW 0x040000
>>> +#define FE_DIVBYZERO 0x080000
>>> +#define FE_INVALID 0x100000
>>> +
>>> +#define FE_ALL_EXCEPT 0x1F0000
>>> +
>>> +#define FE_TONEAREST 0x000
>>> +#define FE_TOWARDZERO 0x100
>>> +#define FE_UPWARD 0x200
>>> +#define FE_DOWNWARD 0x300
>>> +
>>> +typedef unsigned fexcept_t;
>>> +
>>> +typedef struct {
>>> + unsigned __cw;
>>> +} fenv_t;
>>> +
>>> +#define FE_DFL_ENV ((const fenv_t *) -1)
>>> diff --git a/arch/loongarch64/bits/float.h
>>> b/arch/loongarch64/bits/float.h
>>> new file mode 100644
>>> index 00000000..719c7908
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/float.h
>>> @@ -0,0 +1,16 @@
>>> +#define FLT_EVAL_METHOD 0
>>> +
>>> +#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
>>> +#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
>>> +#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
>>> +#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
>>> +
>>> +#define LDBL_MANT_DIG 113
>>> +#define LDBL_MIN_EXP (-16381)
>>> +#define LDBL_MAX_EXP 16384
>>> +
>>> +#define LDBL_DIG 33
>>> +#define LDBL_MIN_10_EXP (-4931)
>>> +#define LDBL_MAX_10_EXP 4932
>>> +
>>> +#define DECIMAL_DIG 36
>>> diff --git a/arch/loongarch64/bits/hwcap.h
>>> b/arch/loongarch64/bits/hwcap.h
>>> new file mode 100644
>>> index 00000000..c9fa08f6
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/hwcap.h
>>> @@ -0,0 +1,14 @@
>>> +/* HWCAP - Hardware Capabilities.
>>> + * Hardware information is not clear at present, leave it blank.
>>> + */
>>> +#define HWCAP_LOONGARCH_CPUCFG (1 << 0)
>>> +#define HWCAP_LOONGARCH_FPU (1 << 1)
>>> +#define HWCAP_LOONGARCH_LSX (1 << 2) /* support 128bit vectors*/
>>> +#define HWCAP_LOONGARCH_LASX (1 << 3) /* support 256bit vectors*/
>>> +#define HWCAP_LOONGARCH_LBT (1 << 4) /* support LBT*/
>>> +#define HWCAP_LOONGARCH_LVZ (1 << 5) /* support virtualization
>>> expansion*/
>>> +#define HWCAP_LOONGARCH_CRC32 (1 << 7) /* support CRC32 check*/
>>> +#define HWCAP_LOONGARCH_AES (1 << 6)
>>> +#define HWCAP_LOONGARCH_SHA1 (1 << 8)
>>> +#define HWCAP_LOONGARCH_SHA2 (1 << 9)
>>> +#define HWCAP_LOONGARCH_SHA3 (1 << 10)
>>> diff --git a/arch/loongarch64/bits/posix.h
>>> b/arch/loongarch64/bits/posix.h
>>> new file mode 100644
>>> index 00000000..8068ce98
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/posix.h
>>> @@ -0,0 +1,2 @@
>>> +#define _POSIX_V6_LP64_OFF64 1
>>> +#define _POSIX_V7_LP64_OFF64 1
>>> diff --git a/arch/loongarch64/bits/ptrace.h
>>> b/arch/loongarch64/bits/ptrace.h
>>> new file mode 100644
>>> index 00000000..741fc668
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/ptrace.h
>>> @@ -0,0 +1,4 @@
>>> +#define PTRACE_GET_THREAD_AREA 25
>>> +#define PTRACE_SET_THREAD_AREA 26
>>> +#define PTRACE_GET_WATCH_REGS 0xd0
>>> +#define PTRACE_SET_WATCH_REGS 0xd1
>>> diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
>>> new file mode 100644
>>> index 00000000..5d3f92c5
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/reg.h
>>> @@ -0,0 +1,66 @@
>>> +#undef __WORDSIZE
>>> +#define __WORDSIZE 64
>>> +#define LOONGARCH64_EF_R0 0
>>> +#define LOONGARCH64_EF_R1 1
>>> +#define LOONGARCH64_EF_R2 2
>>> +#define LOONGARCH64_EF_R3 3
>>> +#define LOONGARCH64_EF_R4 4
>>> +#define LOONGARCH64_EF_R5 5
>>> +#define LOONGARCH64_EF_R6 6
>>> +#define LOONGARCH64_EF_R7 7
>>> +#define LOONGARCH64_EF_R8 8
>>> +#define LOONGARCH64_EF_R9 9
>>> +#define LOONGARCH64_EF_R10 10
>>> +#define LOONGARCH64_EF_R11 11
>>> +#define LOONGARCH64_EF_R12 12
>>> +#define LOONGARCH64_EF_R13 13
>>> +#define LOONGARCH64_EF_R14 14
>>> +#define LOONGARCH64_EF_R15 15
>>> +#define LOONGARCH64_EF_R16 16
>>> +#define LOONGARCH64_EF_R17 17
>>> +#define LOONGARCH64_EF_R18 18
>>> +#define LOONGARCH64_EF_R19 19
>>> +#define LOONGARCH64_EF_R20 20
>>> +#define LOONGARCH64_EF_R21 21
>>> +#define LOONGARCH64_EF_R22 22
>>> +#define LOONGARCH64_EF_R23 23
>>> +#define LOONGARCH64_EF_R24 24
>>> +#define LOONGARCH64_EF_R25 25
>>> +#define LOONGARCH64_EF_R26 26
>>> +#define LOONGARCH64_EF_R27 27
>>> +#define LOONGARCH64_EF_R28 28
>>> +#define LOONGARCH64_EF_R29 29
>>> +#define LOONGARCH64_EF_R30 30
>>> +#define LOONGARCH64_EF_R31 31
>>> +
>>> +#define LOONGARCH64_EF_SIZE 304 /* size in bytes */
>>> +
>>> +#define EF_R0 LOONGARCH64_EF_R0
>>> +#define EF_R1 LOONGARCH64_EF_R1
>>> +#define EF_R2 LOONGARCH64_EF_R2
>>> +#define EF_R3 LOONGARCH64_EF_R3
>>> +#define EF_R4 LOONGARCH64_EF_R4
>>> +#define EF_R5 LOONGARCH64_EF_R5
>>> +#define EF_R6 LOONGARCH64_EF_R6
>>> +#define EF_R7 LOONGARCH64_EF_R7
>>> +#define EF_R8 LOONGARCH64_EF_R8
>>> +#define EF_R9 LOONGARCH64_EF_R9
>>> +#define EF_R10 LOONGARCH64_EF_R10
>>> +#define EF_R11 LOONGARCH64_EF_R11
>>> +#define EF_R12 LOONGARCH64_EF_R12
>>> +#define EF_R13 LOONGARCH64_EF_R13
>>> +#define EF_R14 LOONGARCH64_EF_R14
>>> +#define EF_R15 LOONGARCH64_EF_R15
>>> +#define EF_R16 LOONGARCH64_EF_R16
>>> +#define EF_R17 LOONGARCH64_EF_R17
>>> +#define EF_R18 LOONGARCH64_EF_R18
>>> +#define EF_R19 LOONGARCH64_EF_R19
>>> +#define EF_R20 LOONGARCH64_EF_R20
>>> +#define EF_R21 LOONGARCH64_EF_R21
>>> +#define EF_R22 LOONGARCH64_EF_R22
>>> +#define EF_R23 LOONGARCH64_EF_R23
>>> +#define EF_R24 LOONGARCH64_EF_R24
>>> +#define EF_R25 LOONGARCH64_EF_R25
>>> +#define EF_R26 LOONGARCH64_EF_R26
>>> +#define EF_R27 LOONGARCH64_EF_R27
>>> +#define EF_R28 LOONGARCH64_EF_R28
>>> diff --git a/arch/loongarch64/bits/setjmp.h
>>> b/arch/loongarch64/bits/setjmp.h
>>> new file mode 100644
>>> index 00000000..f4a7f8a3
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/setjmp.h
>>> @@ -0,0 +1 @@
>>> +typedef unsigned long long __jmp_buf[22];
>>> diff --git a/arch/loongarch64/bits/signal.h
>>> b/arch/loongarch64/bits/signal.h
>>> new file mode 100644
>>> index 00000000..4db790e7
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/signal.h
>>> @@ -0,0 +1,80 @@
>>> +#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
>>> + || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) ||
>>> defined(_BSD_SOURCE)
>>> +
>>> +#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) ||
>>> defined(_BSD_SOURCE)
>>> +#define MINSIGSTKSZ 4096
>>> +#define SIGSTKSZ 16384
>>> +#endif
>>> +
>>> +typedef unsigned long greg_t, gregset_t[32];
>>> +
>>> +typedef struct sigcontext {
>>> + unsigned long pc;
>>> + gregset_t gregs;
>>> + unsigned int flags;
>>> + unsigned long extcontext[];
>>> +} mcontext_t;
>>> +
>>> +struct sigaltstack {
>>> + void *ss_sp;
>>> + int ss_flags;
>>> + size_t ss_size;
>>> +};
>>> +
>>> +typedef struct __ucontext
>>> +{
>>> + unsigned long uc_flags;
>>> + struct __ucontext *uc_link;
>>> + stack_t uc_stack;
>>> + sigset_t uc_sigmask;
>>> + long __uc_pad;
>>> + mcontext_t uc_mcontext;
>>> +} ucontext_t;
>>> +
>>> +#define SA_NOCLDSTOP 1
>>> +#define SA_NOCLDWAIT 2
>>> +#define SA_SIGINFO 4
>>> +#define SA_ONSTACK 0x08000000
>>> +#define SA_RESTART 0x10000000
>>> +#define SA_NODEFER 0x40000000
>>> +#define SA_RESETHAND 0x80000000
>>> +#define SA_RESTORER 0x04000000
>>> +
>>> +#endif
>>> +
>>> +#define SIGHUP 1
>>> +#define SIGINT 2
>>> +#define SIGQUIT 3
>>> +#define SIGILL 4
>>> +#define SIGTRAP 5
>>> +#define SIGABRT 6
>>> +#define SIGIOT SIGABRT
>>> +#define SIGBUS 7
>>> +#define SIGFPE 8
>>> +#define SIGKILL 9
>>> +#define SIGUSR1 10
>>> +#define SIGSEGV 11
>>> +#define SIGUSR2 12
>>> +#define SIGPIPE 13
>>> +#define SIGALRM 14
>>> +#define SIGTERM 15
>>> +#define SIGSTKFLT 16
>>> +#define SIGCHLD 17
>>> +#define SIGCONT 18
>>> +#define SIGSTOP 19
>>> +#define SIGTSTP 20
>>> +#define SIGTTIN 21
>>> +#define SIGTTOU 22
>>> +#define SIGURG 23
>>> +#define SIGXCPU 24
>>> +#define SIGXFSZ 25
>>> +#define SIGVTALRM 26
>>> +#define SIGPROF 27
>>> +#define SIGWINCH 28
>>> +#define SIGIO 29
>>> +#define SIGPOLL SIGIO
>>> +#define SIGPWR 30
>>> +#define SIGSYS 31
>>> +#define SIGUNUSED SIGSYS
>>> +
>>> +#define _NSIG 65
>>> diff --git a/arch/loongarch64/bits/stat.h
>>> b/arch/loongarch64/bits/stat.h
>>> new file mode 100644
>>> index 00000000..b7f4221b
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/stat.h
>>> @@ -0,0 +1,18 @@
>>> +struct stat {
>>> + dev_t st_dev;
>>> + ino_t st_ino;
>>> + mode_t st_mode;
>>> + nlink_t st_nlink;
>>> + uid_t st_uid;
>>> + gid_t st_gid;
>>> + dev_t st_rdev;
>>> + unsigned long __pad;
>>> + off_t st_size;
>>> + blksize_t st_blksize;
>>> + int __pad2;
>>> + blkcnt_t st_blocks;
>>> + struct timespec st_atim;
>>> + struct timespec st_mtim;
>>> + struct timespec st_ctim;
>>> + unsigned __unused[2];
>>> +};
>>> diff --git a/arch/loongarch64/bits/stdint.h
>>> b/arch/loongarch64/bits/stdint.h
>>> new file mode 100644
>>> index 00000000..1bb147f2
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/stdint.h
>>> @@ -0,0 +1,20 @@
>>> +typedef int32_t int_fast16_t;
>>> +typedef int32_t int_fast32_t;
>>> +typedef uint32_t uint_fast16_t;
>>> +typedef uint32_t uint_fast32_t;
>>> +
>>> +#define INT_FAST16_MIN INT32_MIN
>>> +#define INT_FAST32_MIN INT32_MIN
>>> +
>>> +#define INT_FAST16_MAX INT32_MAX
>>> +#define INT_FAST32_MAX INT32_MAX
>>> +
>>> +#define UINT_FAST16_MAX UINT32_MAX
>>> +#define UINT_FAST32_MAX UINT32_MAX
>>> +
>>> +#define INTPTR_MIN INT64_MIN
>>> +#define INTPTR_MAX INT64_MAX
>>> +#define UINTPTR_MAX UINT64_MAX
>>> +#define PTRDIFF_MIN INT64_MIN
>>> +#define PTRDIFF_MAX INT64_MAX
>>> +#define SIZE_MAX UINT64_MAX
>>> diff --git a/arch/loongarch64/bits/syscall.h.in
>>> b/arch/loongarch64/bits/syscall.h.in
>>> new file mode 100644
>>> index 00000000..689ff36b
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/syscall.h.in
>>> @@ -0,0 +1,303 @@
>>> +#define __NR_io_setup 0
>>> +#define __NR_io_destroy 1
>>> +#define __NR_io_submit 2
>>> +#define __NR_io_cancel 3
>>> +#define __NR_io_getevents 4
>>> +#define __NR_setxattr 5
>>> +#define __NR_lsetxattr 6
>>> +#define __NR_fsetxattr 7
>>> +#define __NR_getxattr 8
>>> +#define __NR_lgetxattr 9
>>> +#define __NR_fgetxattr 10
>>> +#define __NR_listxattr 11
>>> +#define __NR_llistxattr 12
>>> +#define __NR_flistxattr 13
>>> +#define __NR_removexattr 14
>>> +#define __NR_lremovexattr 15
>>> +#define __NR_fremovexattr 16
>>> +#define __NR_getcwd 17
>>> +#define __NR_lookup_dcookie 18
>>> +#define __NR_eventfd2 19
>>> +#define __NR_epoll_create1 20
>>> +#define __NR_epoll_ctl 21
>>> +#define __NR_epoll_pwait 22
>>> +#define __NR_dup 23
>>> +#define __NR_dup3 24
>>> +#define __NR3264_fcntl 25
>>> +#define __NR_inotify_init1 26
>>> +#define __NR_inotify_add_watch 27
>>> +#define __NR_inotify_rm_watch 28
>>> +#define __NR_ioctl 29
>>> +#define __NR_ioprio_set 30
>>> +#define __NR_ioprio_get 31
>>> +#define __NR_flock 32
>>> +#define __NR_mknodat 33
>>> +#define __NR_mkdirat 34
>>> +#define __NR_unlinkat 35
>>> +#define __NR_symlinkat 36
>>> +#define __NR_linkat 37
>>> +#define __NR_umount2 39
>>> +#define __NR_mount 40
>>> +#define __NR_pivot_root 41
>>> +#define __NR_nfsservctl 42
>>> +#define __NR3264_statfs 43
>>> +#define __NR3264_fstatfs 44
>>> +#define __NR3264_truncate 45
>>> +#define __NR3264_ftruncate 46
>>> +#define __NR_fallocate 47
>>> +#define __NR_faccessat 48
>>> +#define __NR_chdir 49
>>> +#define __NR_fchdir 50
>>> +#define __NR_chroot 51
>>> +#define __NR_fchmod 52
>>> +#define __NR_fchmodat 53
>>> +#define __NR_fchownat 54
>>> +#define __NR_fchown 55
>>> +#define __NR_openat 56
>>> +#define __NR_close 57
>>> +#define __NR_vhangup 58
>>> +#define __NR_pipe2 59
>>> +#define __NR_quotactl 60
>>> +#define __NR_getdents64 61
>>> +#define __NR3264_lseek 62
>>> +#define __NR_read 63
>>> +#define __NR_write 64
>>> +#define __NR_readv 65
>>> +#define __NR_writev 66
>>> +#define __NR_pread64 67
>>> +#define __NR_pwrite64 68
>>> +#define __NR_preadv 69
>>> +#define __NR_pwritev 70
>>> +#define __NR3264_sendfile 71
>>> +#define __NR_pselect6 72
>>> +#define __NR_ppoll 73
>>> +#define __NR_signalfd4 74
>>> +#define __NR_vmsplice 75
>>> +#define __NR_splice 76
>>> +#define __NR_tee 77
>>> +#define __NR_readlinkat 78
>>> +#define __NR_sync 81
>>> +#define __NR_fsync 82
>>> +#define __NR_fdatasync 83
>>> +#define __NR_sync_file_range 84
>>> +#define __NR_timerfd_create 85
>>> +#define __NR_timerfd_settime 86
>>> +#define __NR_timerfd_gettime 87
>>> +#define __NR_utimensat 88
>>> +#define __NR_acct 89
>>> +#define __NR_capget 90
>>> +#define __NR_capset 91
>>> +#define __NR_personality 92
>>> +#define __NR_exit 93
>>> +#define __NR_exit_group 94
>>> +#define __NR_waitid 95
>>> +#define __NR_set_tid_address 96
>>> +#define __NR_unshare 97
>>> +#define __NR_futex 98
>>> +#define __NR_set_robust_list 99
>>> +#define __NR_get_robust_list 100
>>> +#define __NR_nanosleep 101
>>> +#define __NR_getitimer 102
>>> +#define __NR_setitimer 103
>>> +#define __NR_kexec_load 104
>>> +#define __NR_init_module 105
>>> +#define __NR_delete_module 106
>>> +#define __NR_timer_create 107
>>> +#define __NR_timer_gettime 108
>>> +#define __NR_timer_getoverrun 109
>>> +#define __NR_timer_settime 110
>>> +#define __NR_timer_delete 111
>>> +#define __NR_clock_settime 112
>>> +#define __NR_clock_gettime 113
>>> +#define __NR_clock_getres 114
>>> +#define __NR_clock_nanosleep 115
>>> +#define __NR_syslog 116
>>> +#define __NR_ptrace 117
>>> +#define __NR_sched_setparam 118
>>> +#define __NR_sched_setscheduler 119
>>> +#define __NR_sched_getscheduler 120
>>> +#define __NR_sched_getparam 121
>>> +#define __NR_sched_setaffinity 122
>>> +#define __NR_sched_getaffinity 123
>>> +#define __NR_sched_yield 124
>>> +#define __NR_sched_get_priority_max 125
>>> +#define __NR_sched_get_priority_min 126
>>> +#define __NR_sched_rr_get_interval 127
>>> +#define __NR_restart_syscall 128
>>> +#define __NR_kill 129
>>> +#define __NR_tkill 130
>>> +#define __NR_tgkill 131
>>> +#define __NR_sigaltstack 132
>>> +#define __NR_rt_sigsuspend 133
>>> +#define __NR_rt_sigaction 134
>>> +#define __NR_rt_sigprocmask 135
>>> +#define __NR_rt_sigpending 136
>>> +#define __NR_rt_sigtimedwait 137
>>> +#define __NR_rt_sigqueueinfo 138
>>> +#define __NR_rt_sigreturn 139
>>> +#define __NR_setpriority 140
>>> +#define __NR_getpriority 141
>>> +#define __NR_reboot 142
>>> +#define __NR_setregid 143
>>> +#define __NR_setgid 144
>>> +#define __NR_setreuid 145
>>> +#define __NR_setuid 146
>>> +#define __NR_setresuid 147
>>> +#define __NR_getresuid 148
>>> +#define __NR_setresgid 149
>>> +#define __NR_getresgid 150
>>> +#define __NR_setfsuid 151
>>> +#define __NR_setfsgid 152
>>> +#define __NR_times 153
>>> +#define __NR_setpgid 154
>>> +#define __NR_getpgid 155
>>> +#define __NR_getsid 156
>>> +#define __NR_setsid 157
>>> +#define __NR_getgroups 158
>>> +#define __NR_setgroups 159
>>> +#define __NR_uname 160
>>> +#define __NR_sethostname 161
>>> +#define __NR_setdomainname 162
>>> +#define __NR_getrlimit 163
>>> +#define __NR_setrlimit 164
>>> +#define __NR_getrusage 165
>>> +#define __NR_umask 166
>>> +#define __NR_prctl 167
>>> +#define __NR_getcpu 168
>>> +#define __NR_gettimeofday 169
>>> +#define __NR_settimeofday 170
>>> +#define __NR_adjtimex 171
>>> +#define __NR_getpid 172
>>> +#define __NR_getppid 173
>>> +#define __NR_getuid 174
>>> +#define __NR_geteuid 175
>>> +#define __NR_getgid 176
>>> +#define __NR_getegid 177
>>> +#define __NR_gettid 178
>>> +#define __NR_sysinfo 179
>>> +#define __NR_mq_open 180
>>> +#define __NR_mq_unlink 181
>>> +#define __NR_mq_timedsend 182
>>> +#define __NR_mq_timedreceive 183
>>> +#define __NR_mq_notify 184
>>> +#define __NR_mq_getsetattr 185
>>> +#define __NR_msgget 186
>>> +#define __NR_msgctl 187
>>> +#define __NR_msgrcv 188
>>> +#define __NR_msgsnd 189
>>> +#define __NR_semget 190
>>> +#define __NR_semctl 191
>>> +#define __NR_semtimedop 192
>>> +#define __NR_semop 193
>>> +#define __NR_shmget 194
>>> +#define __NR_shmctl 195
>>> +#define __NR_shmat 196
>>> +#define __NR_shmdt 197
>>> +#define __NR_socket 198
>>> +#define __NR_socketpair 199
>>> +#define __NR_bind 200
>>> +#define __NR_listen 201
>>> +#define __NR_accept 202
>>> +#define __NR_connect 203
>>> +#define __NR_getsockname 204
>>> +#define __NR_getpeername 205
>>> +#define __NR_sendto 206
>>> +#define __NR_recvfrom 207
>>> +#define __NR_setsockopt 208
>>> +#define __NR_getsockopt 209
>>> +#define __NR_shutdown 210
>>> +#define __NR_sendmsg 211
>>> +#define __NR_recvmsg 212
>>> +#define __NR_readahead 213
>>> +#define __NR_brk 214
>>> +#define __NR_munmap 215
>>> +#define __NR_mremap 216
>>> +#define __NR_add_key 217
>>> +#define __NR_request_key 218
>>> +#define __NR_keyctl 219
>>> +#define __NR_clone 220
>>> +#define __NR_execve 221
>>> +#define __NR3264_mmap 222
>>> +#define __NR3264_fadvise64 223
>>> +#define __NR_swapon 224
>>> +#define __NR_swapoff 225
>>> +#define __NR_mprotect 226
>>> +#define __NR_msync 227
>>> +#define __NR_mlock 228
>>> +#define __NR_munlock 229
>>> +#define __NR_mlockall 230
>>> +#define __NR_munlockall 231
>>> +#define __NR_mincore 232
>>> +#define __NR_madvise 233
>>> +#define __NR_remap_file_pages 234
>>> +#define __NR_mbind 235
>>> +#define __NR_get_mempolicy 236
>>> +#define __NR_set_mempolicy 237
>>> +#define __NR_migrate_pages 238
>>> +#define __NR_move_pages 239
>>> +#define __NR_rt_tgsigqueueinfo 240
>>> +#define __NR_perf_event_open 241
>>> +#define __NR_accept4 242
>>> +#define __NR_recvmmsg 243
>>> +#define __NR_arch_specific_syscall 244
>>> +#define __NR_wait4 260
>>> +#define __NR_prlimit64 261
>>> +#define __NR_fanotify_init 262
>>> +#define __NR_fanotify_mark 263
>>> +#define __NR_name_to_handle_at 264
>>> +#define __NR_open_by_handle_at 265
>>> +#define __NR_clock_adjtime 266
>>> +#define __NR_syncfs 267
>>> +#define __NR_setns 268
>>> +#define __NR_sendmmsg 269
>>> +#define __NR_process_vm_readv 270
>>> +#define __NR_process_vm_writev 271
>>> +#define __NR_kcmp 272
>>> +#define __NR_finit_module 273
>>> +#define __NR_sched_setattr 274
>>> +#define __NR_sched_getattr 275
>>> +#define __NR_renameat2 276
>>> +#define __NR_seccomp 277
>>> +#define __NR_getrandom 278
>>> +#define __NR_memfd_create 279
>>> +#define __NR_bpf 280
>>> +#define __NR_execveat 281
>>> +#define __NR_userfaultfd 282
>>> +#define __NR_membarrier 283
>>> +#define __NR_mlock2 284
>>> +#define __NR_copy_file_range 285
>>> +#define __NR_preadv2 286
>>> +#define __NR_pwritev2 287
>>> +#define __NR_pkey_mprotect 288
>>> +#define __NR_pkey_alloc 289
>>> +#define __NR_pkey_free 290
>>> +#define __NR_statx 291
>>> +#define __NR_io_pgetevents 292
>>> +#define __NR_rseq 293
>>> +#define __NR_kexec_file_load 294
>>> +#define __NR_pidfd_send_signal 424
>>> +#define __NR_io_uring_setup 425
>>> +#define __NR_io_uring_enter 426
>>> +#define __NR_io_uring_register 427
>>> +#define __NR_open_tree 428
>>> +#define __NR_move_mount 429
>>> +#define __NR_fsopen 430
>>> +#define __NR_fsconfig 431
>>> +#define __NR_fsmount 432
>>> +#define __NR_fspick 433
>>> +#define __NR_pidfd_open 434
>>> +#define __NR_clone3 435
>>> +#define __NR_close_range 436
>>> +#define __NR_openat2 437
>>> +#define __NR_pidfd_getfd 438
>>> +#define __NR_faccessat2 439
>>> +#define __NR_process_madvise 440
>>> +#define __NR_fcntl __NR3264_fcntl
>>> +#define __NR_statfs __NR3264_statfs
>>> +#define __NR_fstatfs __NR3264_fstatfs
>>> +#define __NR_truncate __NR3264_truncate
>>> +#define __NR_ftruncate __NR3264_ftruncate
>>> +#define __NR_lseek __NR3264_lseek
>>> +#define __NR_sendfile __NR3264_sendfile
>>> +#define __NR_mmap __NR3264_mmap
>>> +#define __NR_fadvise64 __NR3264_fadvise64
>>> diff --git a/arch/loongarch64/bits/user.h
>>> b/arch/loongarch64/bits/user.h
>>> new file mode 100644
>>> index 00000000..4d4cd534
>>> --- /dev/null
>>> +++ b/arch/loongarch64/bits/user.h
>>> @@ -0,0 +1,5 @@
>>> +#define ELF_NGREG 45
>>> +#define ELF_NFPREG 33
>>> +
>>> +typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
>>> +typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
>>> diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
>>> new file mode 100644
>>> index 00000000..c806a0bf
>>> --- /dev/null
>>> +++ b/arch/loongarch64/crt_arch.h
>>> @@ -0,0 +1,14 @@
>>> +__asm__(
>>> +".text \n"
>>> +".global " START "\n"
>>> +".type " START ", @function\n"
>>> +START ":\n"
>>> +" add.w $fp, $r0,$r0\n"
>>> +" or $a0, $sp, $zero\n"
>>> +".weak _DYNAMIC\n"
>>> +".hidden _DYNAMIC\n"
>>> +" la.local $a1, _DYNAMIC\n"
>>> +" addi.w $t7, $r0, -16\n"
>>> +" and $sp, $sp, $t7\n"
>>> +" b " START "_c\n"
>>> +);
>>> diff --git a/arch/loongarch64/pthread_arch.h
>>> b/arch/loongarch64/pthread_arch.h
>>> new file mode 100644
>>> index 00000000..95ee4c7a
>>> --- /dev/null
>>> +++ b/arch/loongarch64/pthread_arch.h
>>> @@ -0,0 +1,13 @@
>>> +static inline uintptr_t __get_tp()
>>> +{
>>> + register uintptr_t tp __asm__("tp");
>>> + __asm__ ("" : "=r" (tp) );
>>> + return tp;
>>> +}
>>> +
>>> +#define TLS_ABOVE_TP
>>> +#define GAP_ABOVE_TP 0
>>> +
>>> +#define DTP_OFFSET 0
>>> +
>>> +#define MC_PC pc
>>> diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
>>> new file mode 100644
>>> index 00000000..2f759a34
>>> --- /dev/null
>>> +++ b/arch/loongarch64/reloc.h
>>> @@ -0,0 +1,27 @@
>>> +#ifdef __loongarch64_soft_float
>>> +#define FP_SUFFIX "-sf"
>>> +#else
>>> +#define FP_SUFFIX ""
>>> +#endif
>>> +
>>> +#define LDSO_ARCH "loongarch64" FP_SUFFIX
>>> +
>>> +#define TPOFF_K (0x0)
>>> +
>>> +#define REL_PLT R_LARCH_JUMP_SLOT
>>> +#define REL_COPY R_LARCH_COPY
>>> +#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
>>> +#define REL_DTPOFF R_LARCH_TLS_DTPREL64
>>> +#define REL_TPOFF R_LARCH_TLS_TPREL64
>>> +#define REL_RELATIVE R_LARCH_RELATIVE
>>> +#define REL_SYMBOLIC R_LARCH_64
>>> +
>>> +#define CRTJMP(pc,sp) __asm__ __volatile__( \
>>> + "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
>>> +
>>> +#define GETFUNCSYM(fp, sym, got) __asm__ ( \
>>> + ".hidden " #sym "\n" \
>>> + ".align 8 \n" \
>>> + " la.local $t1, "#sym" \n" \
>>> + " or %0, $t1, $zero \n" \
>>> + : "=r"(*(fp)) : : "memory" )
>>> diff --git a/arch/loongarch64/syscall_arch.h
>>> b/arch/loongarch64/syscall_arch.h
>>> new file mode 100644
>>> index 00000000..ddd29578
>>> --- /dev/null
>>> +++ b/arch/loongarch64/syscall_arch.h
>>> @@ -0,0 +1,137 @@
>>> +#define __SYSCALL_LL_E(x) (x)
>>> +#define __SYSCALL_LL_O(x) (x)
>>> +
>>> +#define SYSCALL_CLOBBERLIST \
>>> + "$t0", "$t1", "$t2", "$t3", \
>>> + "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
>>> +
>>> +static inline long __syscall0(long n)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0");
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "=r"(a0)
>>> + : "r"(a7)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall1(long n, long a)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall2(long n, long a, long b)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> + register long a1 __asm__("$a1") = b;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7), "r"(a1)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall3(long n, long a, long b, long c)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> + register long a1 __asm__("$a1") = b;
>>> + register long a2 __asm__("$a2") = c;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7), "r"(a1), "r"(a2)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall4(long n, long a, long b, long c, long d)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> + register long a1 __asm__("$a1") = b;
>>> + register long a2 __asm__("$a2") = c;
>>> + register long a3 __asm__("$a3") = d;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall5(long n, long a, long b, long c, long
>>> d, long e)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> + register long a1 __asm__("$a1") = b;
>>> + register long a2 __asm__("$a2") = c;
>>> + register long a3 __asm__("$a3") = d;
>>> + register long a4 __asm__("$a4") = e;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall6(long n, long a, long b, long c, long
>>> d, long e, long f)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> + register long a1 __asm__("$a1") = b;
>>> + register long a2 __asm__("$a2") = c;
>>> + register long a3 __asm__("$a3") = d;
>>> + register long a4 __asm__("$a4") = e;
>>> + register long a5 __asm__("$a5") = f;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +static inline long __syscall7(long n, long a, long b, long c, long
>>> d, long e, long f, long g)
>>> +{
>>> + register long a7 __asm__("$a7") = n;
>>> + register long a0 __asm__("$a0") = a;
>>> + register long a1 __asm__("$a1") = b;
>>> + register long a2 __asm__("$a2") = c;
>>> + register long a3 __asm__("$a3") = d;
>>> + register long a4 __asm__("$a4") = e;
>>> + register long a5 __asm__("$a5") = f;
>>> + register long a6 __asm__("$a6") = g;
>>> +
>>> + __asm__ __volatile__ (
>>> + "syscall 0"
>>> + : "+r"(a0)
>>> + : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5),
>>> "r"(a6)
>>> + : SYSCALL_CLOBBERLIST);
>>> + return a0;
>>> +}
>>> +
>>> +#define VDSO_USEFUL
>>> +#define VDSO_CGT_SYM "__vdso_clock_gettime"
>>> +#define VDSO_CGT_VER "LINUX_2.6"
>>> +
>>> +#define IPC_64 0
>>> diff --git a/configure b/configure
>>> index 6f5453f5..aac0c467 100755
>>> --- a/configure
>>> +++ b/configure
>>> @@ -338,6 +338,7 @@ powerpc*|ppc*) ARCH=powerpc ;;
>>> riscv64*) ARCH=riscv64 ;;
>>> sh[1-9bel-]*|sh|superh*) ARCH=sh ;;
>>> s390x*) ARCH=s390x ;;
>>> +loongarch64*) ARCH=loongarch64 ;;
>>> unknown) fail "$0: unable to detect target arch; try $0
>>> --target=..." ;;
>>> *) fail "$0: unknown or unsupported target \"$target\"" ;;
>>> esac
>>> diff --git a/crt/loongarch64/crti.s b/crt/loongarch64/crti.s
>>> new file mode 100644
>>> index 00000000..96a754d3
>>> --- /dev/null
>>> +++ b/crt/loongarch64/crti.s
>>> @@ -0,0 +1,15 @@
>>> +.section .init
>>> +.global _init
>>> +_init:
>>> + addi.d $r3,$r3,-16
>>> + st.d $fp,$r3,0
>>> + st.d $ra,$r3,8
>>> + addi.d $fp,$r3,16
>>> +
>>> +.section .fini
>>> +.global _fini
>>> +_fini:
>>> + addi.d $r3,$r3,-16
>>> + st.d $fp,$r3,0
>>> + st.d $ra,$r3,8
>>> + addi.d $fp,$r3,16
>>> diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
>>> new file mode 100644
>>> index 00000000..bffb18f4
>>> --- /dev/null
>>> +++ b/crt/loongarch64/crtn.s
>>> @@ -0,0 +1,12 @@
>>> +.section .init
>>> + ld.d $fp,$r3,0
>>> + ld.d $ra,$r3,8
>>> + addi.d $r3,$r3,16
>>> + jirl $r0,$ra,0
>>> +
>>> +
>>> +.section .fini
>>> + ld.d $fp,$r3,0
>>> + ld.d $ra,$r3,8
>>> + addi.d $r3,$r3,16
>>> + jirl $r0,$ra,0
>>> diff --git a/include/elf.h b/include/elf.h
>>> index 86e2f0bb..69b01ff4 100644
>>> --- a/include/elf.h
>>> +++ b/include/elf.h
>>> @@ -697,6 +697,11 @@ typedef struct {
>>> #define NT_MIPS_FP_MODE 0x801
>>> #define NT_MIPS_MSA 0x802
>>> #define NT_VERSION 1
>>> +#define NT_LOONGARCH_CPUCFG 0xa00
>>> +#define NT_LOONGARCH_CSR 0xa01
>>> +#define NT_LOONGARCH_LSX 0xa02
>>> +#define NT_LOONGARCH_LASX 0xa03
>>> +#define NT_LOONGARCH_LBT 0xa04
>>> @@ -3288,6 +3293,67 @@ enum
>>> #define R_RISCV_SET32 56
>>> #define R_RISCV_32_PCREL 57
>>> +/* LoongISA ELF Flags */
>>> +#define EM_LOONGARCH 258
>>> +
>>> +#define EF_LARCH_ABI 0x0003
>>> +#define EF_LARCH_ABI_LP64 0x0003
>>> +#define EF_LARCH_ABI_LP32 0x0001
>>> +
>>> +/* Loongarch specific dynamic relocations. */
>>> +#define R_LARCH_NONE 0
>>> +#define R_LARCH_32 1
>>> +#define R_LARCH_64 2
>>> +#define R_LARCH_RELATIVE 3
>>> +#define R_LARCH_COPY 4
>>> +#define R_LARCH_JUMP_SLOT 5
>>> +#define R_LARCH_TLS_DTPMOD32 6
>>> +#define R_LARCH_TLS_DTPMOD64 7
>>> +#define R_LARCH_TLS_DTPREL32 8
>>> +#define R_LARCH_TLS_DTPREL64 9
>>> +#define R_LARCH_TLS_TPREL32 10
>>> +#define R_LARCH_TLS_TPREL64 11
>>> +#define R_LARCH_IRELATIVE 12
>>> +#define R_LARCH_MARK_LA 20
>>> +#define R_LARCH_MARK_PCREL 21
>>> +#define R_LARCH_SOP_PUSH_PCREL 22
>>> +#define R_LARCH_SOP_PUSH_ABSOLUTE 23
>>> +#define R_LARCH_SOP_PUSH_DUP 24
>>> +#define R_LARCH_SOP_PUSH_GPREL 25
>>> +#define R_LARCH_SOP_PUSH_TLS_TPREL 26
>>> +#define R_LARCH_SOP_PUSH_TLS_GOT 27
>>> +#define R_LARCH_SOP_PUSH_TLS_GD 28
>>> +#define R_LARCH_SOP_PUSH_PLT_PCREL 29
>>> +#define R_LARCH_SOP_ASSERT 30
>>> +#define R_LARCH_SOP_NOT 31
>>> +#define R_LARCH_SOP_SUB 32
>>> +#define R_LARCH_SOP_SL 33
>>> +#define R_LARCH_SOP_SR 34
>>> +#define R_LARCH_SOP_ADD 35
>>> +#define R_LARCH_SOP_AND 36
>>> +#define R_LARCH_SOP_IF_ELSE 37
>>> +#define R_LARCH_SOP_POP_32_S_10_5 38
>>> +#define R_LARCH_SOP_POP_32_U_10_12 39
>>> +#define R_LARCH_SOP_POP_32_S_10_12 40
>>> +#define R_LARCH_SOP_POP_32_S_10_16 41
>>> +#define R_LARCH_SOP_POP_32_S_10_16_S2 42
>>> +#define R_LARCH_SOP_POP_32_S_5_20 43
>>> +#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
>>> +#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
>>> +#define R_LARCH_SOP_POP_32_U 46
>>> +#define R_LARCH_ADD8 47
>>> +#define R_LARCH_ADD16 48
>>> +#define R_LARCH_ADD24 49
>>> +#define R_LARCH_ADD32 50
>>> +#define R_LARCH_ADD64 51
>>> +#define R_LARCH_SUB8 52
>>> +#define R_LARCH_SUB16 53
>>> +#define R_LARCH_SUB24 54
>>> +#define R_LARCH_SUB32 55
>>> +#define R_LARCH_SUB64 56
>>> +#define R_LARCH_GNU_VTINHERIT 57
>>> +#define R_LARCH_GNU_VTENTRY 58
>>> +
>>> #ifdef __cplusplus
>>> }
>>> #endif
>>> diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
>>> new file mode 100644
>>> index 00000000..049234be
>>> --- /dev/null
>>> +++ b/src/fenv/loongarch64/fenv.S
>>> @@ -0,0 +1,72 @@
>>> +#ifndef __loongarch_soft_float
>>> +
>>> +.global feclearexcept
>>> +.type feclearexcept,@function
>>> +feclearexcept:
>>> + li.w $a1, 0x1f0000 //flags in 16-20 bit of fcsr0.
>>> + and $a0, $a0, $a1
>>> + movfcsr2gr $a1, $r0
>>> + or $a1, $a1, $a0
>>> + xor $a1, $a1, $a0
>>> + movgr2fcsr $r0, $a1
>>> + li.w $v0, 0
>>> + jirl $zero, $ra, 0
>>> +
>>> +.global feraiseexcept
>>> +.type feraiseexcept,@function
>>> +feraiseexcept:
>>> + li.w $a1, 0x1f0000
>>> + and $a0, $a0, $a1
>>> + movfcsr2gr $a1, $r0
>>> + or $a1, $a1, $a0
>>> + movgr2fcsr $r0, $a1
>>> + li.w $v0, 0
>>> + jirl $zero, $ra, 0
>>> +
>>> +.global fetestexcept
>>> +.type fetestexcept,@function
>>> +fetestexcept:
>>> + li.w $a1, 0x1f0000
>>> + and $a0, $a0, $a1
>>> + movfcsr2gr $a1, $r0
>>> + and $v0, $a1, $a0
>>> + jirl $zero, $ra, 0
>>> +
>>> +.global fegetround
>>> +.type fegetround,@function
>>> +fegetround:
>>> + movfcsr2gr $v0, $r0
>>> + andi $v0, $v0, 0x300 //fcsr0.RM
>>> + jirl $zero, $ra, 0
>>> +
>>> +.global __fesetround
>>> +.hidden __fesetround
>>> +.type __fesetround,@function
>>> +__fesetround:
>>> + movfcsr2gr $a1, $r0
>>> + li.w $a2, -769 //0xfffffcff
>>> + and $a1, $a1, $a2
>>> + or $a1, $a1, $a0
>>> + movgr2fcsr $r0, $a1
>>> + li.w $v0, 0
>>> + jirl $zero, $ra, 0
>>> +
>>> +.global fegetenv
>>> +.type fegetenv,@function
>>> +fegetenv:
>>> + movfcsr2gr $a1, $r0
>>> + st.w $a1, $a0, 0
>>> + li.w $v0, 0
>>> + jirl $zero, $ra, 0
>>> +
>>> +.global fesetenv
>>> +.type fesetenv,@function
>>> +fesetenv:
>>> + addi.d $a1, $a0, 1
>>> + beq $a1, $r0, 1f
>>> + ld.w $a1, $a0, 0
>>> +1: movgr2fcsr $r0, $a1
>>> + li.w $v0, 0
>>> + jirl $zero, $ra, 0
>>> +
>>> +#endif
>>> diff --git a/src/ldso/loongarch64/dlsym.s
>>> b/src/ldso/loongarch64/dlsym.s
>>> new file mode 100644
>>> index 00000000..5f51ed85
>>> --- /dev/null
>>> +++ b/src/ldso/loongarch64/dlsym.s
>>> @@ -0,0 +1,7 @@
>>> +.global dlsym
>>> +.hidden __dlsym
>>> +.type dlsym,@function
>>> +dlsym:
>>> + move $a2, $ra
>>> + la.global $r16, __dlsym
>>> + jirl $r0, $r16, 0
>>> diff --git a/src/setjmp/loongarch64/longjmp.S
>>> b/src/setjmp/loongarch64/longjmp.S
>>> new file mode 100644
>>> index 00000000..41d897ed
>>> --- /dev/null
>>> +++ b/src/setjmp/loongarch64/longjmp.S
>>> @@ -0,0 +1,37 @@
>>> +.global _longjmp
>>> +.global longjmp
>>> +.type _longjmp,@function
>>> +.type longjmp,@function
>>> +_longjmp:
>>> +longjmp:
>>> + add.d $t5, $a0, $zero
>>> + add.d $v0, $a1, $zero
>>> +
>>> + bne $v0, $zero, 1f
>>> + addi.d $v0, $v0, 1
>>> +
>>> +1:
>>> + ld.d $ra, $t5, 0
>>> + ld.d $sp, $t5, 8
>>> + ld.d $r21,$t5, 16
>>> + ld.d $fp, $t5, 24
>>> + ld.d $s0, $t5, 32
>>> + ld.d $s1, $t5, 40
>>> + ld.d $s2, $t5, 48
>>> + ld.d $s3, $t5, 56
>>> + ld.d $s4, $t5, 64
>>> + ld.d $s5, $t5, 72
>>> + ld.d $s6, $t5, 80
>>> + ld.d $s7, $t5, 88
>>> + ld.d $s8, $t5, 96
>>> +#ifndef __loongarch64_soft_float
>>> + fld.d $fs0, $t5, 104
>>> + fld.d $fs1, $t5, 112
>>> + fld.d $fs2, $t5, 120
>>> + fld.d $fs3, $t5, 128
>>> + fld.d $fs4, $t5, 136
>>> + fld.d $fs5, $t5, 144
>>> + fld.d $fs6, $t5, 152
>>> + fld.d $fs7, $t5, 160
>>> +#endif
>>> + jirl $zero, $ra, 0
>>> diff --git a/src/setjmp/loongarch64/setjmp.S
>>> b/src/setjmp/loongarch64/setjmp.S
>>> new file mode 100644
>>> index 00000000..8dca3cb8
>>> --- /dev/null
>>> +++ b/src/setjmp/loongarch64/setjmp.S
>>> @@ -0,0 +1,34 @@
>>> +.global __setjmp
>>> +.global _setjmp
>>> +.global setjmp
>>> +.type __setjmp,@function
>>> +.type _setjmp,@function
>>> +.type setjmp,@function
>>> +__setjmp:
>>> +_setjmp:
>>> +setjmp:
>>> + st.d $ra, $a0, 0
>>> + st.d $sp, $a0, 8
>>> + st.d $r21,$a0, 16
>>> + st.d $fp, $a0, 24
>>> + st.d $s0, $a0, 32
>>> + st.d $s1, $a0, 40
>>> + st.d $s2, $a0, 48
>>> + st.d $s3, $a0, 56
>>> + st.d $s4, $a0, 64
>>> + st.d $s5, $a0, 72
>>> + st.d $s6, $a0, 80
>>> + st.d $s7, $a0, 88
>>> + st.d $s8, $a0, 96
>>> +#ifndef __loongarch64_soft_float
>>> + fst.d $fs0, $a0, 104
>>> + fst.d $fs1, $a0, 112
>>> + fst.d $fs2, $a0, 120
>>> + fst.d $fs3, $a0, 128
>>> + fst.d $fs4, $a0, 136
>>> + fst.d $fs5, $a0, 144
>>> + fst.d $fs6, $a0, 152
>>> + fst.d $fs7, $a0, 160
>>> +#endif
>>> + xor $v0, $v0, $v0
>>> + jirl $zero, $ra, 0
>>> diff --git a/src/signal/loongarch64/restore.s
>>> b/src/signal/loongarch64/restore.s
>>> new file mode 100644
>>> index 00000000..9bf015a0
>>> --- /dev/null
>>> +++ b/src/signal/loongarch64/restore.s
>>> @@ -0,0 +1,10 @@
>>> +.global __restore_rt
>>> +.global __restore
>>> +.hidden __restore_rt
>>> +.hidden __restore
>>> +.type __restore_rt,@function
>>> +.type __restore,@function
>>> +__restore_rt:
>>> +__restore:
>>> + ori $a7, $zero, 139
>>> + syscall 0
>>> diff --git a/src/signal/loongarch64/sigsetjmp.s
>>> b/src/signal/loongarch64/sigsetjmp.s
>>> new file mode 100644
>>> index 00000000..d53f334a
>>> --- /dev/null
>>> +++ b/src/signal/loongarch64/sigsetjmp.s
>>> @@ -0,0 +1,29 @@
>>> +.global sigsetjmp
>>> +.global __sigsetjmp
>>> +.type sigsetjmp,@function
>>> +.type __sigsetjmp,@function
>>> +sigsetjmp:
>>> +__sigsetjmp:
>>> + or $t5, $a0, $zero
>>> + or $t6, $a1, $zero
>>> +
>>> + # comparing save mask with 0, if equals to 0 then
>>> + # sigsetjmp is equal to setjmp.
>>> + beq $t6, $zero, 1f
>>> + st.d $ra, $t5, 168
>>> +
>>> + # save base of got so that we can use it later
>>> + # once we return from 'longjmp'
>>> + la.global $t8, setjmp
>>> + jirl $ra, $t8, 0
>>> +
>>> + or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
>>> + ld.d $ra, $t5, 168 # Restore ra of sigsetjmp
>>> + or $a0, $t5, $zero
>>> +
>>> +.hidden __sigsetjmp_tail
>>> + la.global $t8, __sigsetjmp_tail
>>> + jirl $zero, $t8, 0
>>> +1:
>>> + la.global $t8, setjmp
>>> + jirl $zero, $t8, 0
>>> diff --git a/src/thread/loongarch64/__set_thread_area.s
>>> b/src/thread/loongarch64/__set_thread_area.s
>>> new file mode 100644
>>> index 00000000..421cd381
>>> --- /dev/null
>>> +++ b/src/thread/loongarch64/__set_thread_area.s
>>> @@ -0,0 +1,7 @@
>>> +.global __set_thread_area
>>> +.hidden __set_thread_area
>>> +.type __set_thread_area,@function
>>> +__set_thread_area:
>>> + or $tp, $a0, $zero
>>> + ori $a0, $zero, 0
>>> + jirl $zero, $ra, 0
>>> diff --git a/src/thread/loongarch64/__unmapself.s
>>> b/src/thread/loongarch64/__unmapself.s
>>> new file mode 100644
>>> index 00000000..b77e6d1d
>>> --- /dev/null
>>> +++ b/src/thread/loongarch64/__unmapself.s
>>> @@ -0,0 +1,7 @@
>>> +.global __unmapself
>>> +.type __unmapself, @function
>>> +__unmapself:
>>> + li.d $a7, 215
>>> + syscall 0 # call munmap
>>> + li.d $a7, 93
>>> + syscall 0 # call exit
>>> diff --git a/src/thread/loongarch64/clone.s
>>> b/src/thread/loongarch64/clone.s
>>> new file mode 100644
>>> index 00000000..ec920c7b
>>> --- /dev/null
>>> +++ b/src/thread/loongarch64/clone.s
>>> @@ -0,0 +1,47 @@
>>> +#__clone(func, stack, flags, arg, ptid, tls, ctid)
>>> +# a0, a1, a2, a3, a4, a5, a6
>>> +# sys_clone3(struct clone_args *cl_args, size_t size)
>>> +# a0 a1
>>> +
>>> +.global __clone
>>> +.hidden __clone
>>> +.type __clone,@function
>>> +__clone:
>>> + # Save function pointer and argument pointer on new thread stack
>>> + addi.d $a1, $a1, -16
>>> + st.d $a0, $a1, 0 # save function pointer
>>> + st.d $a3, $a1, 8 # save argument pointer
>>> +
>>> + li.d $t0, ~0x004000ff # mask CSIGNAL and CLONE_DETACHED
>>> + and $t1, $a2, $t0 # cl_args.flags
>>> + li.d $t0, 0x000000ff # CSIGNAL
>>> + and $t2, $a2, $t0 # cl_args.exit_signal
>>> +
>>> + bstrins.d $sp, $zero, 2, 0 # align stack to 8 bytes
>>> + addi.d $sp, $sp, -88 # struct clone_args
>>> + st.d $t1, $sp, 0 # flags
>>> + st.d $a4, $sp, 8 # pidfd
>>> + st.d $a6, $sp, 16 # child_tid
>>> + st.d $a4, $sp, 24 # parent_tid
>>> + st.d $t2, $sp, 32 # exit_signal
>>> + st.d $a1, $sp, 40 # stack
>>> + st.d $zero, $sp, 48 # stack_size
>>> + st.d $a5, $sp, 56 # tls
>>> + st.d $zero, $sp, 64 # set_tid
>>> + st.d $zero, $sp, 72 # set_tid_size
>>> + st.d $zero, $sp, 80 # cgroup
>>> +
>>> + move $a0, $sp
>>> + li.d $a1, 88
>>> + li.d $a7, 435 # __NR_clone3
>>> + syscall 0 # call clone3
>>> +
>>> + beqz $a0, 1f # whether child process
>>> + addi.d $sp, $sp, 88
>>> + jirl $zero, $ra, 0 # parent process return
>>> +1:
>>> + ld.d $t8, $sp, 0 # function pointer
>>> + ld.d $a0, $sp, 8 # argument pointer
>>> + jirl $ra, $t8, 0 # call the user's function
>>> + li.d $a7, 93
>>> + syscall 0 # child process exit
>>> diff --git a/src/thread/loongarch64/syscall_cp.s
>>> b/src/thread/loongarch64/syscall_cp.s
>>> new file mode 100644
>>> index 00000000..3903ed2c
>>> --- /dev/null
>>> +++ b/src/thread/loongarch64/syscall_cp.s
>>> @@ -0,0 +1,29 @@
>>> +.global __cp_begin
>>> +.hidden __cp_begin
>>> +.global __cp_end
>>> +.hidden __cp_end
>>> +.global __cp_cancel
>>> +.hidden __cp_cancel
>>> +.hidden __cancel
>>> +.global __syscall_cp_asm
>>> +.hidden __syscall_cp_asm
>>> +.type __syscall_cp_asm,@function
>>> +
>>> +__syscall_cp_asm:
>>> +__cp_begin:
>>> + ld.w $a0, $a0, 0
>>> + bnez $a0, __cp_cancel
>>> + or $t8, $a1, $zero # reserve system call number
>>> + or $a0, $a2, $zero
>>> + or $a1, $a3, $zero
>>> + or $a2, $a4, $zero
>>> + or $a3, $a5, $zero
>>> + or $a4, $a6, $zero
>>> + or $a5, $a7, $zero
>>> + or $a7, $t8, $zero
>>> + syscall 0
>>> +__cp_end:
>>> + jirl $zero, $ra, 0
>>> +__cp_cancel:
>>> + la.local $t8, __cancel
>>> + jirl $zero, $t8, 0
>>> --
>>> 2.34.1
>>>
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2022-06-08 3:56 [musl] add loongarch64 port v4 王洪亮
2022-06-14 7:23 ` [musl] " 王洪亮
2022-06-20 9:49 ` 王洪亮
2022-06-23 1:30 ` 王洪亮
2022-06-23 1:59 ` Rich Felker
2022-07-05 12:56 ` 王洪亮
2022-07-16 8:13 ` 王洪亮
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