From: 翟小娟 <zhaixiaojuan@loongson.cn>
To: musl@lists.openwall.com
Subject: Re: Re: [musl] Port the new architecture loongarch64 to musl
Date: Thu, 24 Jun 2021 19:43:11 +0800 (GMT+08:00) [thread overview]
Message-ID: <631a1416.5853.17a3dd4c129.Coremail.zhaixiaojuan@loongson.cn> (raw)
In-Reply-To: <CAE2XoE_9sQrizuiy0afA1dQdPxgOkPda_39oB9DOJN1c2FB0Cw@mail.gmail.com>
[-- Attachment #1: Type: text/plain, Size: 2125 bytes --]
Hi, qemu supports loongarch64 architecture has been completed: https://github.com/loongson/qemu .
For musl loongarch64 source code can also be obtained from https://github.com/loongson-community/musl. If necessary, we can also provide a remote testing enviroment.
See the attachment for specific modifications.
-----原始邮件-----
发件人:"罗勇刚(Yonggang Luo)" <luoyonggang@gmail.com>
发送时间:2021-05-08 00:29:40 (星期六)
收件人: Musl <musl@lists.openwall.com>
抄送: "陈国祺" <chenguoqi@loongson.cn>
主题: Re: [musl] Port the new architecture loongarch64 to musl
Same question, does qemu have already support for loongarch64, that's means a lot for auto testing
As the real hardware will be not broadly available in the next few years.
On Fri, May 7, 2021 at 5:01 PM 翟小娟 <zhaixiaojuan@loongson.cn> wrote:
Hi,
I ported a new architecture loongarch64 on the latest branch of musl master. It has been successfully compiled and run the official test libraries libc-testsuit and libc-test of musl.
The source code of the prot has been published in https://github.com/loongson-community/musl. Or check the attachment 0001-port-to-loongarch64.patch, it is the transplanted patch file.
Introduction to loongarch architecture:
The Loongarch architecture is a simplified instruction computer style instruction system architecture. The instruction length is fixed and the encoding format is regular. Most instructions have only two source operands and one destination operand. The load/store architecture is adopted, that is, only load/store memory access instructions can access the memory, and the operation objects of other instructions are all It is the immediate value in the register or instruction code in the processor core.
The Loongson architecture is divided into two versions, 32bit and 64bit, called LA32 and LA64 respectively. LA64 architecture application level is downward binary compatible with LA32 architecture.
--
此致
礼
罗勇刚
Yours
sincerely,
Yonggang Luo
</zhaixiaojuan@loongson.cn></chenguoqi@loongson.cn></musl@lists.openwall.com></luoyonggang@gmail.com>
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[-- Attachment #2: 0001-port-to-loongarch64.patch --]
[-- Type: text/x-patch; name=0001-port-to-loongarch64.patch, Size: 53991 bytes --]
From 137506d1039e0800c6c2631df16f1584c0f64b07 Mon Sep 17 00:00:00 2001
From: zhaixiaojuan <zhaixiaojuan@loongson.cn>
Date: Fri, 7 May 2021 15:35:11 +0800
Subject: [PATCH] port to loongarch64
Signed-off-by: zhaixiaojuan <zhaixiaojuan@loongson.cn>
---
arch/loongarch64/atomic_arch.h | 52 ++++
arch/loongarch64/bits/alltypes.h.in | 20 ++
arch/loongarch64/bits/fcntl.h | 40 +++
arch/loongarch64/bits/fenv.h | 25 ++
arch/loongarch64/bits/float.h | 16 ++
arch/loongarch64/bits/hwcap.h | 15 ++
arch/loongarch64/bits/posix.h | 2 +
arch/loongarch64/bits/ptrace.h | 4 +
arch/loongarch64/bits/reg.h | 66 +++++
arch/loongarch64/bits/resource.h | 5 +
arch/loongarch64/bits/setjmp.h | 1 +
arch/loongarch64/bits/signal.h | 144 ++++++++++
arch/loongarch64/bits/stat.h | 20 ++
arch/loongarch64/bits/statfs.h | 6 +
arch/loongarch64/bits/stdint.h | 20 ++
arch/loongarch64/bits/syscall.h.in | 291 +++++++++++++++++++++
arch/loongarch64/bits/user.h | 5 +
arch/loongarch64/crt_arch.h | 23 ++
arch/loongarch64/ksigaction.h | 13 +
arch/loongarch64/kstat.h | 22 ++
arch/loongarch64/pthread_arch.h | 13 +
arch/loongarch64/reloc.h | 43 +++
arch/loongarch64/syscall_arch.h | 121 +++++++++
configure | 1 +
crt/loongarch64/crti.s | 15 ++
crt/loongarch64/crtn.s | 12 +
include/elf.h | 65 +++++
src/fenv/loongarch64/fenv-sf.c | 3 +
src/fenv/loongarch64/fenv.S | 75 ++++++
src/ldso/loongarch64/dlsym.s | 12 +
src/setjmp/loongarch64/longjmp.S | 37 +++
src/setjmp/loongarch64/setjmp.S | 35 +++
src/signal/loongarch64/restore.s | 10 +
src/signal/loongarch64/sigsetjmp.s | 33 +++
src/thread/loongarch64/__set_thread_area.s | 7 +
src/thread/loongarch64/__unmapself.s | 8 +
src/thread/loongarch64/clone.s | 27 ++
src/thread/loongarch64/syscall_cp.s | 34 +++
src/unistd/loongarch64/pipe.s | 12 +
39 files changed, 1353 insertions(+)
create mode 100644 arch/loongarch64/atomic_arch.h
create mode 100644 arch/loongarch64/bits/alltypes.h.in
create mode 100644 arch/loongarch64/bits/fcntl.h
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/resource.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/statfs.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/ksigaction.h
create mode 100644 arch/loongarch64/kstat.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-sf.c
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
create mode 100644 src/unistd/loongarch64/pipe.s
diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
new file mode 100644
index 00000000..eb2dedda
--- /dev/null
+++ b/arch/loongarch64/atomic_arch.h
@@ -0,0 +1,52 @@
+#define LLSC_M "m"
+
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+ int v;
+ __asm__ __volatile__ (
+ "ll.w %0, %1"
+ : "=r"(v) : LLSC_M(*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), "="LLSC_M(*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) : LLSC_M(*(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), "="LLSC_M(*(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
+
+#undef LLSC_M
diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
new file mode 100644
index 00000000..38871b5f
--- /dev/null
+++ b/arch/loongarch64/bits/alltypes.h.in
@@ -0,0 +1,20 @@
+#define _Addr long
+#define _Int64 long
+#define _Reg long
+
+#define __BYTE_ORDER 1234
+#define __LONG_MAX 0x7fffffffffffffffL
+
+TYPEDEF __builtin_va_list va_list;
+TYPEDEF __builtin_va_list __isoc_va_list;
+
+#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;
diff --git a/arch/loongarch64/bits/fcntl.h b/arch/loongarch64/bits/fcntl.h
new file mode 100644
index 00000000..9bcbb7ff
--- /dev/null
+++ b/arch/loongarch64/bits/fcntl.h
@@ -0,0 +1,40 @@
+#define O_CREAT 0100
+#define O_EXCL 0200
+#define O_NOCTTY 0400
+#define O_TRUNC 01000
+#define O_APPEND 02000
+#define O_NONBLOCK 04000
+#define O_DSYNC 010000
+#define O_SYNC 04010000
+#define O_RSYNC 04010000
+#define O_DIRECTORY 0200000
+#define O_NOFOLLOW 0400000
+#define O_CLOEXEC 02000000
+
+#define O_ASYNC 020000
+#define O_DIRECT 040000
+#define O_LARGEFILE 0100000
+#define O_NOATIME 01000000
+#define O_PATH 010000000
+#define O_TMPFILE 020000000
+#define O_NDELAY O_NONBLOCK
+
+#define F_DUPFD 0
+#define F_GETFD 1
+#define F_SETFD 2
+#define F_GETFL 3
+#define F_SETFL 4
+
+#define F_SETOWN 8
+#define F_GETOWN 9
+#define F_SETSIG 10
+#define F_GETSIG 11
+
+#define F_GETLK 5
+#define F_SETLK 6
+#define F_SETLKW 7
+
+#define F_SETOWN_EX 15
+#define F_GETOWN_EX 16
+
+#define F_GETOWNER_UIDS 17
diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
new file mode 100644
index 00000000..6f98053a
--- /dev/null
+++ b/arch/loongarch64/bits/fenv.h
@@ -0,0 +1,25 @@
+#ifdef __loongarch_soft_float
+#define FE_ALL_EXCEPT 0
+#define FE_TONEAREST 0
+#else
+#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
+#endif
+
+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..bb505da8
--- /dev/null
+++ b/arch/loongarch64/bits/hwcap.h
@@ -0,0 +1,15 @@
+/* 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/resource.h b/arch/loongarch64/bits/resource.h
new file mode 100644
index 00000000..da983617
--- /dev/null
+++ b/arch/loongarch64/bits/resource.h
@@ -0,0 +1,5 @@
+#define RLIMIT_NOFILE 7 /* num of file limit, able to open file */
+#define RLIMIT_AS 9 /* address space limit */
+#define RLIMIT_RSS 5 /* max resident set size */
+#define RLIMIT_NPROC 6 /* max number of processes */
+#define RLIMIT_MEMLOCK 8 /* max locked-in-memory address space */
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..318551a7
--- /dev/null
+++ b/arch/loongarch64/bits/signal.h
@@ -0,0 +1,144 @@
+#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 8192
+#define SIGSTKSZ (MINSIGSTKSZ + 32768)
+#endif
+
+#define ARCH_MIN_TASKALIGN 32
+#define FPU_REG_WIDTH 256
+#define FPU_ALIGN __attribute__((aligned(32)))
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef unsigned long greg_t, gregset_t[32];
+
+struct sigcontext {
+ unsigned long sc_pc;
+ unsigned long sc_regs[32];
+ unsigned int sc_flags;
+ unsigned int sc_fcsr;
+ unsigned int sc_vcsr;
+ unsigned long sc_fcc;
+ unsigned long sc_scr[4];
+ union {
+ unsigned int val32[FPU_REG_WIDTH / 32];
+ unsigned long long val64[FPU_REG_WIDTH / 64];
+ } sc_fpregs[32] FPU_ALIGN;
+ unsigned char sc_reserved[4096] __attribute__((__aligned__(16)));
+};
+
+typedef struct {
+ unsigned long pc;
+ unsigned long gregs[32];
+ unsigned int flags;
+ unsigned int fcsr;
+ unsigned int vcsr;
+ unsigned long fcc;
+ unsigned long scr[4];
+ union {
+ unsigned int val32[FPU_REG_WIDTH / 32];
+ unsigned long long val64[FPU_REG_WIDTH / 64];
+ } fpregs[32] FPU_ALIGN;
+ unsigned char reserved[4096] __attribute__((__aligned__(16)));
+} mcontext_t;
+
+#else
+typedef struct {
+ unsigned long __mc1[32];
+ union {
+ unsigned int val32[FPU_REG_WIDTH / 32];
+ unsigned long long val64[FPU_REG_WIDTH / 64];
+ } _mc2[32] FPU_ALIGN;
+ unsigned int __mc3[3];
+ unsigned long __mc4[2];
+ unsigned long __mc5[4];
+ unsigned char reserved[4096] __attribute__((__aligned__(16)));
+} mcontext_t;
+
+#endif
+
+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;
+ mcontext_t uc_mcontext;
+ sigset_t uc_sigmask;
+} ucontext_t;
+
+
+#define SA_NOCLDSTOP 1 /* Don't send SIGCHLD when children stop. */
+#define SA_NOCLDWAIT 2 /* Don't create zombie on child death. */
+#define SA_SIGINFO 4 /* Invoke signal-catching function with
+ three arguments instead of one. */
+#define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */
+#define SA_RESTART 0x10000000 /* Restart syscall on signal return. */
+#define SA_NODEFER 0x40000000 /* Don't automatically block the signal when
+ its handler is being executed. */
+#define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */
+#define SA_RESTORER 0x04000000
+
+#undef SIG_BLOCK
+#undef SIG_UNBLOCK
+#undef SIG_SETMASK
+#define SIG_BLOCK 0
+#define SIG_UNBLOCK 1
+#define SIG_SETMASK 2
+
+#undef SI_ASYNCIO
+#undef SI_MESGQ
+#undef SI_TIMER
+#define SI_ASYNCIO (-4)
+#define SI_MESGQ (-3)
+#define SI_TIMER (-2)
+
+
+#endif
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT 6
+#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 SIGLOST 29
+*/
+#define SIGPWR 30
+#define SIGSYS 31
+
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 128
diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
new file mode 100644
index 00000000..b620e142
--- /dev/null
+++ b/arch/loongarch64/bits/stat.h
@@ -0,0 +1,20 @@
+struct stat {
+ dev_t st_dev;
+ int __pad1[3];
+ 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 int __pad2[2];
+ off_t st_size;
+ int __pad3;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ blksize_t st_blksize;
+ unsigned int __pad4;
+ blkcnt_t st_blocks;
+ int __pad5[14];
+};
diff --git a/arch/loongarch64/bits/statfs.h b/arch/loongarch64/bits/statfs.h
new file mode 100644
index 00000000..389954ae
--- /dev/null
+++ b/arch/loongarch64/bits/statfs.h
@@ -0,0 +1,6 @@
+struct statfs {
+ long f_type, f_bsize;
+ unsigned long f_blocks, f_bfree, f_bavail, f_files, f_ffree;
+ fsid_t f_fsid;
+ long f_namelen, f_frsize, f_flags, f_spare[4];
+};
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..74bfd799
--- /dev/null
+++ b/arch/loongarch64/bits/syscall.h.in
@@ -0,0 +1,291 @@
+#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_faccessat2 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 __NR3264_fstatat 79
+#define __NR3264_fstat 80
+#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_syscalls 294
+#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_newfstatat __NR3264_fstatat
+#define __NR_fstat __NR3264_fstat
+#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..3db6aad5
--- /dev/null
+++ b/arch/loongarch64/crt_arch.h
@@ -0,0 +1,23 @@
+__asm__(
+".text \n"
+".global _" START "\n"
+".global " START "\n"
+".global " START "_data\n"
+".type _" START ", @function\n"
+".type " START ", @function\n"
+".type " START "_data, @function\n"
+"_" START ":\n"
+"" START ":\n"
+".align 8 \n"
+" add.w $fp, $r0,$r0 \n"
+" bl 1f \n"
+"" START "_data: \n"
+".weak _DYNAMIC \n"
+".hidden _DYNAMIC \n"
+"1: or $a0, $sp, $zero \n"
+" la.local $a1, _DYNAMIC \n"
+" addi.w $r19, $r0, -16 \n"
+" and $sp, $sp, $r19 \n"
+" la.local $t0," START "_c \n"
+" jirl $t1,$t0,0 \n"
+);
diff --git a/arch/loongarch64/ksigaction.h b/arch/loongarch64/ksigaction.h
new file mode 100644
index 00000000..0d352e8c
--- /dev/null
+++ b/arch/loongarch64/ksigaction.h
@@ -0,0 +1,13 @@
+#include <features.h>
+
+/* This is the structure used for the rt_sigaction syscall on most archs,
+ * but it can be overridden by a file with the same name in the top-level
+ * arch dir for a given arch, if necessary. */
+struct k_sigaction {
+ void (*handler)(int);
+ unsigned long flags;
+ unsigned long mask[2];
+ void (*restorer)();
+};
+
+hidden void __restore(), __restore_rt();
diff --git a/arch/loongarch64/kstat.h b/arch/loongarch64/kstat.h
new file mode 100644
index 00000000..f66ed2e9
--- /dev/null
+++ b/arch/loongarch64/kstat.h
@@ -0,0 +1,22 @@
+struct kstat {
+ unsigned long st_dev; /* Device. */
+ unsigned long st_ino; /* File serial number. */
+ unsigned int st_mode; /* File mode. */
+ unsigned int st_nlink; /* Link count. */
+ unsigned int st_uid; /* User ID of the file's owner. */
+ unsigned int st_gid; /* Group ID of the file's group. */
+ unsigned long st_rdev; /* Device number, if device. */
+ unsigned long __pad1;
+ long st_size; /* Size of file, in bytes. */
+ int st_blksize; /* Optimal block size for I/O. */
+ int __pad2;
+ long st_blocks; /* Number 512-byte blocks allocated. */
+ long st_atime_sec; /* Time of last access. */
+ unsigned long st_atime_nsec;
+ long st_mtime_sec; /* Time of last modification. */
+ unsigned long st_mtime_nsec;
+ long st_ctime_sec; /* Time of last status change. */
+ unsigned long st_ctime_nsec;
+ unsigned int __unused4;
+ unsigned int __unused5;
+};
diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
new file mode 100644
index 00000000..27f50e4c
--- /dev/null
+++ b/arch/loongarch64/pthread_arch.h
@@ -0,0 +1,13 @@
+static inline uintptr_t __get_tp()
+{
+ uintptr_t tp;
+ __asm__ ("or %0, $tp, $zero" : "=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..6e2b67e9
--- /dev/null
+++ b/arch/loongarch64/reloc.h
@@ -0,0 +1,43 @@
+#ifndef __RELOC_H__
+#define __RELOC_H__
+
+#define _GNU_SOURCE
+#include <endian.h>
+
+#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_SYM_OR_REL 4611
+#define REL_PLT R_LOONGARCH_JUMP_SLOT
+#define REL_COPY R_LOONGARCH_COPY
+#define REL_DTPMOD R_LOONGARCH_TLS_DTPMOD64
+#define REL_DTPOFF R_LOONGARCH_TLS_DTPREL64
+#define REL_TPOFF R_LOONGARCH_TLS_TPREL64
+#define REL_RELATIVE R_LOONGARCH_RELATIVE
+#define REL_SYMBOLIC R_LOONGARCH_64
+
+//#undef R_TYPE
+//#undef R_SYM
+//#undef R_INFO
+//#define R_TYPE(x) (be64toh(x)&0x7fffffff)
+//#define R_SYM(x) (be32toh(be64toh(x)>>32))
+//#define R_INFO(s,t) (htobe64((uint64_t)htobe32(s)<<32 | (uint64_t)t))
+
+#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, $zero \n" \
+ : "=r"(*(fp)) : : "memory" )
+
+#endif
diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
new file mode 100644
index 00000000..5b44089f
--- /dev/null
+++ b/arch/loongarch64/syscall_arch.h
@@ -0,0 +1,121 @@
+#define IPC_64 0x0
+
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define SYSCALL_CLOBBERLIST \
+ "$t0", "$t1", "$t2", "$t3", \
+ "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
+
+static inline long __syscall0(long n)
+{
+ register long a0 __asm__("$a0");
+ register long a7 __asm__("$a7") = n;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+&r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall1(long n, long a)
+{
+ register long a0 __asm__("$a0") = a;
+ register long a7 __asm__("$a7") = n;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+&r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a7 __asm__("$a7") = n;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+&r"(a0)
+ : "r"(a7), "r"(a1)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a7 __asm__("$a7") = n;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+&r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a7 __asm__("$a7") = n;
+
+ __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 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__("$a4") = e;
+ register long a7 __asm__("$a7") = n;
+
+ __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 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 a7 __asm__("$a7") = n;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+&r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
+
+#define SO_SNDTIMEO_OLD 21
+#define SO_RCVTIMEO_OLD 20
diff --git a/configure b/configure
index a5231a0e..54b7aa2b 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..77dc262e
--- /dev/null
+++ b/crt/loongarch64/crti.s
@@ -0,0 +1,15 @@
+.section .init
+.global _init
+.align 3
+_init:
+ addi.d $r3,$r3,-32
+ st.d $r31,$r3,16
+ st.d $r1,$r3,24
+
+.section .fini
+.global _fini
+.align 3
+_fini:
+ addi.d $r3,$r3,-32
+ st.d $r31,$r3,16
+ st.d $r1,$r3,24
diff --git a/crt/loongarch64/crtn.s b/crt/loongarch64/crtn.s
new file mode 100644
index 00000000..12c27c66
--- /dev/null
+++ b/crt/loongarch64/crtn.s
@@ -0,0 +1,12 @@
+.section .init
+ ld.d $r31,$r3,16
+ ld.d $r1,$r3,24
+ addi.d $r3,$r3,32
+ jirl $r0,$r1,0
+
+
+.section .fini
+ ld.d $r31,$r3,16
+ ld.d $r1,$r3,24
+ addi.d $r3,$r3,32
+ jirl $r0,$r1,0
diff --git a/include/elf.h b/include/elf.h
index 5170f3e2..47a86615 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -696,6 +696,10 @@ typedef struct {
#define NT_MIPS_FP_MODE 0x801
#define NT_MIPS_MSA 0x802
#define NT_VERSION 1
+#define NT_LOONGARCH_CPUCFG 0x900 /* Loongarch CPU config registers */
+#define NT_LOONGARCH_LBT 0x901 /* Loongarch Loongson Binary Translation registers */
+#define NT_LOONGARCH_LSX 0x902 /* Loongarch Loongson SIMD Extension registers */
+#define NT_LOONGARCH_LASX 0x903 /* Loongarch Loongson Advanced SIMD Extension registers */
@@ -3287,6 +3291,67 @@ enum
#define R_RISCV_SET32 56
#define R_RISCV_32_PCREL 57
+/* LoongISA ELF Flags */
+#define EM_LOONGARCH 258
+#define EF_LOONGARCH_ABI 0x0003
+#define EF_LOONGARCH_ABI_LP64 0x0003
+#define EF_LOONGARCH_ABI_LPX32 0x0002
+#define EF_LOONGARCH_ABI_LP32 0x0001
+
+/* Loongarch specific dynamic relocations. */
+#define R_LOONGARCH_NONE 0
+#define R_LOONGARCH_32 1
+#define R_LOONGARCH_64 2
+#define R_LOONGARCH_RELATIVE 3
+#define R_LOONGARCH_COPY 4
+#define R_LOONGARCH_JUMP_SLOT 5
+#define R_LOONGARCH_TLS_DTPMOD32 6
+#define R_LOONGARCH_TLS_DTPMOD64 7
+#define R_LOONGARCH_TLS_DTPREL32 8
+#define R_LOONGARCH_TLS_DTPREL64 9
+#define R_LOONGARCH_TLS_TPREL32 10
+#define R_LOONGARCH_TLS_TPREL64 11
+#define R_LOONGARCH_IRELATIVE 12
+#define R_LOONGARCH_MARK_LA 20
+#define R_LOONGARCH_MARK_PCREL 21
+#define R_LOONGARCH_SOP_PUSH_PCREL 22
+#define R_LOONGARCH_SOP_PUSH_ABSOLUTE 23
+#define R_LOONGARCH_SOP_PUSH_DUP 24
+#define R_LOONGARCH_SOP_PUSH_GPREL 25
+#define R_LOONGARCH_SOP_PUSH_TLS_TPREL 26
+#define R_LOONGARCH_SOP_PUSH_TLS_GOT 27
+#define R_LOONGARCH_SOP_PUSH_TLS_GD 28
+#define R_LOONGARCH_SOP_PUSH_PLT_PCREL 29
+#define R_LOONGARCH_SOP_ASSERT 30
+#define R_LOONGARCH_SOP_NOT 31
+#define R_LOONGARCH_SOP_SUB 32
+#define R_LOONGARCH_SOP_SL 33
+#define R_LOONGARCH_SOP_SR 34
+#define R_LOONGARCH_SOP_ADD 35
+#define R_LOONGARCH_SOP_AND 36
+#define R_LOONGARCH_SOP_IF_ELSE 37
+#define R_LOONGARCH_SOP_POP_32_S_10_5 38
+#define R_LOONGARCH_SOP_POP_32_U_10_12 39
+#define R_LOONGARCH_SOP_POP_32_S_10_12 40
+#define R_LOONGARCH_SOP_POP_32_S_10_16 41
+#define R_LOONGARCH_SOP_POP_32_S_10_16_S2 42
+#define R_LOONGARCH_SOP_POP_32_S_5_20 43
+#define R_LOONGARCH_SOP_POP_32_S_0_5_10_16_S2 44
+#define R_LOONGARCH_SOP_POP_32_S_0_10_10_16_S2 45
+#define R_LOONGARCH_SOP_POP_32_U 46
+#define R_LOONGARCH_ADD8 47
+#define R_LOONGARCH_ADD16 48
+#define R_LOONGARCH_ADD24 49
+#define R_LOONGARCH_ADD32 50
+#define R_LOONGARCH_ADD64 51
+#define R_LOONGARCH_SUB8 52
+#define R_LOONGARCH_SUB16 53
+#define R_LOONGARCH_SUB24 54
+#define R_LOONGARCH_SUB32 55
+#define R_LOONGARCH_SUB64 56
+#define R_LOONGARCH_GNU_VTINHERIT 57
+#define R_LOONGARCH_GNU_VTENTRY 58
+
#ifdef __cplusplus
}
#endif
diff --git a/src/fenv/loongarch64/fenv-sf.c b/src/fenv/loongarch64/fenv-sf.c
new file mode 100644
index 00000000..6aa9b545
--- /dev/null
+++ b/src/fenv/loongarch64/fenv-sf.c
@@ -0,0 +1,3 @@
+#ifdef __loongarch64_soft_float
+#include "../fenv.c"
+#endif
diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
new file mode 100644
index 00000000..beb2868e
--- /dev/null
+++ b/src/fenv/loongarch64/fenv.S
@@ -0,0 +1,75 @@
+#ifndef __loongarch_soft_float
+
+.global feclearexcept
+.type feclearexcept,@function
+feclearexcept:
+ //andi $a0, $a0, 0x1f0000 // la: exception bits in 16-20 bit of fcsr0.
+ li $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0 // r0 is fpu control status register 0(fcsr0), r0 -> fcsr0, r1 -> fcsr1, r2 -> fcsr2, r3 - fcsr3
+ or $a1, $a1, $a0
+ xor $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li $v0, 0
+ jr $ra
+
+.global feraiseexcept
+.type feraiseexcept,@function
+feraiseexcept:
+ //andi $a0, $a0, 0x1f0000
+ li $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li $v0, 0
+ jr $ra
+
+.global fetestexcept
+.type fetestexcept,@function
+fetestexcept:
+ //andi $a0, $a0, 0x1f0000
+ li $a1, 0x1f0000
+ and $a0, $a0, $a1
+ movfcsr2gr $a1, $r0
+ and $v0, $a1, $a0
+ jr $ra
+
+.global fegetround
+.type fegetround,@function
+fegetround:
+ movfcsr2gr $v0, $r0
+ andi $v0, $v0, 0x300 // RM
+ jr $ra
+
+.global __fesetround
+.hidden __fesetround
+.type __fesetround,@function
+__fesetround:
+ movfcsr2gr $a1, $r0
+ li $a2, -769
+ and $a1, $a1, $a2
+ or $a1, $a1, $a0
+ movgr2fcsr $r0, $a1
+ li $v0, 0
+ jr $ra
+
+.global fegetenv
+.type fegetenv,@function
+fegetenv:
+ movfcsr2gr $a1, $r0
+ st.w $a1, $a0, 0
+ li $v0, 0
+ jr $ra
+
+.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 $v0, 0
+ jr $ra
+
+#endif
diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
new file mode 100644
index 00000000..2faa8ed3
--- /dev/null
+++ b/src/ldso/loongarch64/dlsym.s
@@ -0,0 +1,12 @@
+.global dlsym
+.hidden __dlsym
+.type dlsym,@function
+dlsym:
+ move $r6, $ra
+ la.global $r16, __dlsym
+ addi.d $sp, $sp, -32
+ st.d $ra, $sp, 24
+ jirl $ra, $r16, 0
+ ld.d $ra, $sp, 24
+ addi.d $sp, $sp, 32
+ jr $ra
diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
new file mode 100644
index 00000000..90529b8c
--- /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 $fp, $t5, 16
+ ld.d $s0, $t5, 24
+ ld.d $s1, $t5, 32
+ ld.d $s2, $t5, 40
+ ld.d $s3, $t5, 48
+ ld.d $s4, $t5, 56
+ ld.d $s5, $t5, 64
+ ld.d $s6, $t5, 72
+ ld.d $s7, $t5, 80
+ ld.d $s8, $t5, 88
+#ifndef __loongarch64_soft_float
+ fld.d $fs0, $t5, 96
+ fld.d $fs1, $t5, 104
+ fld.d $fs2, $t5, 112
+ fld.d $fs3, $t5, 120
+ fld.d $fs4, $t5, 128
+ fld.d $fs5, $t5, 136
+ fld.d $fs6, $t5, 144
+ fld.d $fs7, $t5, 152
+#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..83170dea
--- /dev/null
+++ b/src/setjmp/loongarch64/setjmp.S
@@ -0,0 +1,35 @@
+.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 $fp, $a0, 16
+ st.d $s0, $a0, 24
+ st.d $s1, $a0, 32
+ st.d $s2, $a0, 40
+ st.d $s3, $a0, 48
+ st.d $s4, $a0, 56
+ st.d $s5, $a0, 64
+ st.d $s6, $a0, 72
+ st.d $s7, $a0, 80
+ st.d $s8, $a0, 88
+#ifndef __loongarch64_soft_float
+ fst.d $fs0, $a0, 96
+ fst.d $fs1, $a0, 104
+ fst.d $fs2, $a0, 112
+ fst.d $fs3, $a0, 120
+ fst.d $fs4, $a0, 128
+ fst.d $fs5, $a0, 136
+ fst.d $fs6, $a0, 144
+ fst.d $fs7, $a0, 152
+#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..e860c47b
--- /dev/null
+++ b/src/signal/loongarch64/sigsetjmp.s
@@ -0,0 +1,33 @@
+.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, 160
+ st.d $s0, $t5, 168
+
+ # save base of got so that we can use it later
+ # once we return from 'longjmp'
+ la.global $t8, setjmp
+ or $s0, $a0, $zero
+ jirl $ra, $t8, 0
+
+ or $v1, $v0, $zero # Return from 'setjmp' or 'longjmp'
+ ld.d $ra, $t5, 160 # Restore ra of sigsetjmp
+ ld.d $s0, $t5, 168 # Restore $s0 of sigsetjmp
+ or $a0, $t5, $zero
+
+.hidden __sigsetjmp_tail
+ la.global $t8, __sigsetjmp_tail
+ jr $t8
+1:
+ la.global $t8, setjmp
+ jr $t8
+
diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
new file mode 100644
index 00000000..891ac076
--- /dev/null
+++ b/src/thread/loongarch64/__set_thread_area.s
@@ -0,0 +1,7 @@
+.global __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..e0d2fcf6
--- /dev/null
+++ b/src/thread/loongarch64/__unmapself.s
@@ -0,0 +1,8 @@
+.global __unmapself
+.type __unmapself, @function
+__unmapself:
+ ori $a7, $zero, 215
+ syscall 0 # call munmap
+ ori $a0, $zero, 0
+ ori $a7, $zero, 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..a3fd82ba
--- /dev/null
+++ b/src/thread/loongarch64/clone.s
@@ -0,0 +1,27 @@
+.global __clone
+.hidden __clone
+.type __clone,@function
+__clone:
+ # Save function pointer and argument pointer on new thread stack
+ addi.d $a1, $a1, -16 # aligning stack to double word
+ st.d $a0, $a1, 0 # save function pointer
+ st.d $a3, $a1, 8 # save argument pointer
+
+ # Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid)
+ # sys_clone(u64 flags, u64 ustack_base, u64 parent_tidptr, u64 child_tidptr, u64 tls)
+ or $a0, $a2, $zero
+ or $a2, $a4, $zero
+ or $a3, $a6, $zero
+ or $a4, $a5, $zero
+ ori $a7, $zero, 220
+ syscall 0 # call clone
+
+ beqz $a0, 1f # whether child process
+ 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
+ ori $a7, $zero, 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..d833f625
--- /dev/null
+++ b/src/thread/loongarch64/syscall_cp.s
@@ -0,0 +1,34 @@
+.global __cp_begin
+.hidden __cp_begin
+.type __cp_begin,@function
+.global __cp_end
+.hidden __cp_end
+.type __cp_end,@function
+.global __cp_cancel
+.hidden __cp_cancel
+.type __cp_cancel,@function
+.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
+ ld.d $a6, $sp, 0
+ or $a7, $t8, $zero
+ syscall 0
+__cp_end:
+ jirl $zero, $ra, 0
+__cp_cancel:
+ la.local $t8, __cancel
+ jirl $zero, $t8, 0
+
diff --git a/src/unistd/loongarch64/pipe.s b/src/unistd/loongarch64/pipe.s
new file mode 100644
index 00000000..b7f5b7b4
--- /dev/null
+++ b/src/unistd/loongarch64/pipe.s
@@ -0,0 +1,12 @@
+.global pipe
+.type pipe,@function
+pipe:
+ move $a1, $r0
+ li $a7, 59
+ syscall 0
+ li $t0, -4096
+ bgeu $t0, $v0, 1f
+ la.global $t1, __syscall_ret
+ jr $t1
+1: move $v0, $r0
+ jr $ra
--
2.20.1
next prev parent reply other threads:[~2021-06-24 11:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <5f6d09a5.c3a.179460eee20.Coremail.zhaixiaojuan@loongson.cn>
2021-05-07 21:58 ` Arnd Bergmann
2021-05-08 5:16 ` 翟小娟
2021-05-09 7:56 ` Arnd Bergmann
[not found] ` <32e9f7ee-bd3c-762a-a771-2da41a8c1bb0@dereferenced.org>
2021-05-08 5:23 ` 翟小娟
2021-05-08 7:49 ` Ariadne Conill
2021-05-12 9:30 ` 翟小娟
2021-05-12 12:07 ` 罗勇刚(Yonggang Luo)
2021-05-12 19:53 ` Ariadne Conill
2021-05-17 11:19 ` 翟小娟
[not found] ` <CAE2XoE_9sQrizuiy0afA1dQdPxgOkPda_39oB9DOJN1c2FB0Cw@mail.gmail.com>
2021-05-08 5:18 ` 翟小娟
2021-06-24 11:43 ` 翟小娟 [this message]
2021-06-24 11:56 ` 罗勇刚(Yonggang Luo)
2021-06-24 12:17 ` 翟小娟
2021-06-24 12:47 ` 罗勇刚(Yonggang Luo)
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