From: voidlinux-github@inbox.vuxu.org
To: ml@inbox.vuxu.org
Subject: [PR PATCH] linux4.19/5.1/5.2: build with ELFv2 ABI on ppc64 big endian
Date: Fri, 12 Jul 2019 19:48:24 +0200 [thread overview]
Message-ID: <gh-mailinglist-notifications-41a7ca26-5023-4802-975b-f1789d68868e-void-packages-13064@inbox.vuxu.org> (raw)
[-- Attachment #1: Type: text/plain, Size: 1376 bytes --]
There is a new pull request by q66 against master on the void-packages repository
https://github.com/void-power/void-packages kernel-elfv2
https://github.com/void-linux/void-packages/pull/13064
linux4.19/5.1/5.2: build with ELFv2 ABI on ppc64 big endian
This adds patches to build the kernel as ELFv2 binaries for big endian ppc64, just like is default for little endian. While IBM does not officially support this and the upstream is not interested in it (because of the former), it has some mainly performance benefits (on unrelated note, we build all big endian userland as ELFv2 also, which IBM does not support either, but musl requires it and glibc at least allows it).
I tested this on a Power Mac G5 as well as in a virtual machine and it seems to be working very nicely. It's also a small patch that shouldn't conflict with anything much ever and is trivlal to redo or even ditch if needed (userland ABI does not affect kernel ABI or the other way around), it also fixes the GCC 9.1 build by side effect (as `-mcall-aixdesc` is no longer necessary).
@pullmoll / @stenstorp, mind giving this a spin also? I think it's worth a try at least. From my side there's still some stuff to confirm, so consider WIP for now, though I'm not expecting any changes to be necessary.
A patch file from https://github.com/void-linux/void-packages/pull/13064.patch is attached
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From 52374ae0df5e37e557b24004b7d35da779fe36d2 Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Fri, 12 Jul 2019 19:36:34 +0200
Subject: [PATCH 1/3] linux5.1: build ppc64 BE with ELFv2
---
srcpkgs/linux5.1/patches/ppc64-be-elfv2.patch | 84 +++++++++++++++++++
srcpkgs/linux5.1/patches/ppc64-be-gcc91.patch | 28 -------
2 files changed, 84 insertions(+), 28 deletions(-)
create mode 100644 srcpkgs/linux5.1/patches/ppc64-be-elfv2.patch
delete mode 100644 srcpkgs/linux5.1/patches/ppc64-be-gcc91.patch
diff --git a/srcpkgs/linux5.1/patches/ppc64-be-elfv2.patch b/srcpkgs/linux5.1/patches/ppc64-be-elfv2.patch
new file mode 100644
index 00000000000..ec65b442bdb
--- /dev/null
+++ b/srcpkgs/linux5.1/patches/ppc64-be-elfv2.patch
@@ -0,0 +1,84 @@
+This makes the Linux kernel build as ELFv2 on big endian ppc64. The upstream
+doesn't seem to be interested in this but it's a small patch that is unlikely
+to break/easy to remake and in worst case can always be ditched.
+
+Using ELFv2 has some potential performance benefits and is already always used
+on little endian. It requires a relatively modern toolchain, which we already
+have.
+
+Ping q66 if it does not apply.
+
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -93,10 +93,8 @@ MULTIPLEWORD := -mmultiple
+ endif
+
+ ifdef CONFIG_PPC64
+-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
+-aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+-aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
++cflags-y += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
++aflags-y += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ endif
+
+ ifndef CONFIG_CC_IS_CLANG
+@@ -144,14 +142,8 @@ endif
+ endif
+
+ CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no)
+-ifdef CONFIG_CPU_LITTLE_ENDIAN
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+-AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
+-else
+-CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
+-CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
+-AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
+-endif
++AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -48,8 +48,8 @@ ifdef CONFIG_CPU_BIG_ENDIAN
+ BOOTCFLAGS += -mbig-endian
+ else
+ BOOTCFLAGS += -mlittle-endian
+-BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
+ endif
++BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
+
+ BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
+
+--- a/drivers/crypto/vmx/Makefile
++++ b/drivers/crypto/vmx/Makefile
+@@ -5,7 +5,7 @@ vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes
+ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ TARGET := linux-ppc64le
+ else
+-TARGET := linux-ppc64
++TARGET := linux-ppc64v2
+ endif
+
+ quiet_cmd_perl = PERL $@
+--- a/drivers/crypto/vmx/ppc-xlate.pl
++++ b/drivers/crypto/vmx/ppc-xlate.pl
+@@ -40,7 +40,7 @@ my $globl = sub {
+ };
+ my $text = sub {
+ my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
+- $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
++ $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64(le|v2)/);
+ $ret;
+ };
+ my $machine = sub {
+@@ -142,7 +142,7 @@ my $vmr = sub {
+
+ # Some ABIs specify vrsave, special-purpose register #256, as reserved
+ # for system use.
+-my $no_vrsave = ($flavour =~ /linux-ppc64le/);
++my $no_vrsave = ($flavour =~ /linux-ppc64(le|v2)/);
+ my $mtspr = sub {
+ my ($f,$idx,$ra) = @_;
+ if ($idx == 256 && $no_vrsave) {
diff --git a/srcpkgs/linux5.1/patches/ppc64-be-gcc91.patch b/srcpkgs/linux5.1/patches/ppc64-be-gcc91.patch
deleted file mode 100644
index f168c161e6c..00000000000
--- a/srcpkgs/linux5.1/patches/ppc64-be-gcc91.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-Since gcc 9.1, adding `-mcall-aixdesc` to cflags makes it no longer define
-`__linux__`, which breaks compilation of the kernel in places where the macro
-is checked (which is multiple). This behavior is actually more correct than
-it was before, as `-mcall-aixdesc` is only meant to be used when compiling
-for AIX.
-
-However, it is not enough to just drop it and use `-mabi=elfv1`, as that
-results in a ton of undefined references all over the place when linking.
-So work around it until upstream sorts it out.
-
---- a/arch/powerpc/Makefile
-+++ b/arch/powerpc/Makefile
-@@ -96,6 +96,7 @@ endif
- ifdef CONFIG_PPC64
- cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
- cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
-+cflags-$(CONFIG_CPU_BIG_ENDIAN) += -D__linux__
- aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
- aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
- endif
-@@ -151,6 +152,7 @@ AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
- else
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
-+CFLAGS-$(CONFIG_PPC64) += -D__linux__
- AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
- endif
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
From fceb49a9fd5af0e2c3b0f16f6283f5f19e938b99 Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Fri, 12 Jul 2019 19:37:24 +0200
Subject: [PATCH 2/3] linux5.2: build ppc64 BE with ELFv2
---
srcpkgs/linux5.2/patches/ppc64-be-elfv2.patch | 84 +++++++++++++++++++
srcpkgs/linux5.2/patches/ppc64-be-gcc91.patch | 28 -------
2 files changed, 84 insertions(+), 28 deletions(-)
create mode 100644 srcpkgs/linux5.2/patches/ppc64-be-elfv2.patch
delete mode 100644 srcpkgs/linux5.2/patches/ppc64-be-gcc91.patch
diff --git a/srcpkgs/linux5.2/patches/ppc64-be-elfv2.patch b/srcpkgs/linux5.2/patches/ppc64-be-elfv2.patch
new file mode 100644
index 00000000000..ec65b442bdb
--- /dev/null
+++ b/srcpkgs/linux5.2/patches/ppc64-be-elfv2.patch
@@ -0,0 +1,84 @@
+This makes the Linux kernel build as ELFv2 on big endian ppc64. The upstream
+doesn't seem to be interested in this but it's a small patch that is unlikely
+to break/easy to remake and in worst case can always be ditched.
+
+Using ELFv2 has some potential performance benefits and is already always used
+on little endian. It requires a relatively modern toolchain, which we already
+have.
+
+Ping q66 if it does not apply.
+
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -93,10 +93,8 @@ MULTIPLEWORD := -mmultiple
+ endif
+
+ ifdef CONFIG_PPC64
+-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
+-aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+-aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
++cflags-y += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
++aflags-y += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ endif
+
+ ifndef CONFIG_CC_IS_CLANG
+@@ -144,14 +142,8 @@ endif
+ endif
+
+ CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no)
+-ifdef CONFIG_CPU_LITTLE_ENDIAN
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+-AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
+-else
+-CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
+-CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
+-AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
+-endif
++AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -48,8 +48,8 @@ ifdef CONFIG_CPU_BIG_ENDIAN
+ BOOTCFLAGS += -mbig-endian
+ else
+ BOOTCFLAGS += -mlittle-endian
+-BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
+ endif
++BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
+
+ BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
+
+--- a/drivers/crypto/vmx/Makefile
++++ b/drivers/crypto/vmx/Makefile
+@@ -5,7 +5,7 @@ vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes
+ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ TARGET := linux-ppc64le
+ else
+-TARGET := linux-ppc64
++TARGET := linux-ppc64v2
+ endif
+
+ quiet_cmd_perl = PERL $@
+--- a/drivers/crypto/vmx/ppc-xlate.pl
++++ b/drivers/crypto/vmx/ppc-xlate.pl
+@@ -40,7 +40,7 @@ my $globl = sub {
+ };
+ my $text = sub {
+ my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
+- $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
++ $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64(le|v2)/);
+ $ret;
+ };
+ my $machine = sub {
+@@ -142,7 +142,7 @@ my $vmr = sub {
+
+ # Some ABIs specify vrsave, special-purpose register #256, as reserved
+ # for system use.
+-my $no_vrsave = ($flavour =~ /linux-ppc64le/);
++my $no_vrsave = ($flavour =~ /linux-ppc64(le|v2)/);
+ my $mtspr = sub {
+ my ($f,$idx,$ra) = @_;
+ if ($idx == 256 && $no_vrsave) {
diff --git a/srcpkgs/linux5.2/patches/ppc64-be-gcc91.patch b/srcpkgs/linux5.2/patches/ppc64-be-gcc91.patch
deleted file mode 100644
index f168c161e6c..00000000000
--- a/srcpkgs/linux5.2/patches/ppc64-be-gcc91.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-Since gcc 9.1, adding `-mcall-aixdesc` to cflags makes it no longer define
-`__linux__`, which breaks compilation of the kernel in places where the macro
-is checked (which is multiple). This behavior is actually more correct than
-it was before, as `-mcall-aixdesc` is only meant to be used when compiling
-for AIX.
-
-However, it is not enough to just drop it and use `-mabi=elfv1`, as that
-results in a ton of undefined references all over the place when linking.
-So work around it until upstream sorts it out.
-
---- a/arch/powerpc/Makefile
-+++ b/arch/powerpc/Makefile
-@@ -96,6 +96,7 @@ endif
- ifdef CONFIG_PPC64
- cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
- cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
-+cflags-$(CONFIG_CPU_BIG_ENDIAN) += -D__linux__
- aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
- aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
- endif
-@@ -151,6 +152,7 @@ AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
- else
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
-+CFLAGS-$(CONFIG_PPC64) += -D__linux__
- AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
- endif
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
From a60f4676506ee8acc627cd59f24d37f55fb7ef4d Mon Sep 17 00:00:00 2001
From: q66 <daniel@octaforge.org>
Date: Fri, 12 Jul 2019 19:37:56 +0200
Subject: [PATCH 3/3] linux4.19: build ppc64 BE with ELFv2
[ci skip]
---
.../linux4.19/patches/ppc64-be-elfv2.patch | 84 +++++++++++++++++++
.../linux4.19/patches/ppc64-be-gcc91.patch | 28 -------
2 files changed, 84 insertions(+), 28 deletions(-)
create mode 100644 srcpkgs/linux4.19/patches/ppc64-be-elfv2.patch
delete mode 100644 srcpkgs/linux4.19/patches/ppc64-be-gcc91.patch
diff --git a/srcpkgs/linux4.19/patches/ppc64-be-elfv2.patch b/srcpkgs/linux4.19/patches/ppc64-be-elfv2.patch
new file mode 100644
index 00000000000..ec65b442bdb
--- /dev/null
+++ b/srcpkgs/linux4.19/patches/ppc64-be-elfv2.patch
@@ -0,0 +1,84 @@
+This makes the Linux kernel build as ELFv2 on big endian ppc64. The upstream
+doesn't seem to be interested in this but it's a small patch that is unlikely
+to break/easy to remake and in worst case can always be ditched.
+
+Using ELFv2 has some potential performance benefits and is already always used
+on little endian. It requires a relatively modern toolchain, which we already
+have.
+
+Ping q66 if it does not apply.
+
+--- a/arch/powerpc/Makefile
++++ b/arch/powerpc/Makefile
+@@ -93,10 +93,8 @@ MULTIPLEWORD := -mmultiple
+ endif
+
+ ifdef CONFIG_PPC64
+-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+-cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
+-aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
+-aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
++cflags-y += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
++aflags-y += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ endif
+
+ ifndef CONFIG_CC_IS_CLANG
+@@ -144,14 +142,8 @@ endif
+ endif
+
+ CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no)
+-ifdef CONFIG_CPU_LITTLE_ENDIAN
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc))
+-AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
+-else
+-CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
+-CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
+-AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
+-endif
++AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mabi=elfv1))
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
+ CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mno-pointers-to-nested-functions)
+
+--- a/arch/powerpc/boot/Makefile
++++ b/arch/powerpc/boot/Makefile
+@@ -48,8 +48,8 @@ ifdef CONFIG_CPU_BIG_ENDIAN
+ BOOTCFLAGS += -mbig-endian
+ else
+ BOOTCFLAGS += -mlittle-endian
+-BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
+ endif
++BOOTCFLAGS += $(call cc-option,-mabi=elfv2)
+
+ BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
+
+--- a/drivers/crypto/vmx/Makefile
++++ b/drivers/crypto/vmx/Makefile
+@@ -5,7 +5,7 @@ vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes
+ ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+ TARGET := linux-ppc64le
+ else
+-TARGET := linux-ppc64
++TARGET := linux-ppc64v2
+ endif
+
+ quiet_cmd_perl = PERL $@
+--- a/drivers/crypto/vmx/ppc-xlate.pl
++++ b/drivers/crypto/vmx/ppc-xlate.pl
+@@ -40,7 +40,7 @@ my $globl = sub {
+ };
+ my $text = sub {
+ my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
+- $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
++ $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64(le|v2)/);
+ $ret;
+ };
+ my $machine = sub {
+@@ -142,7 +142,7 @@ my $vmr = sub {
+
+ # Some ABIs specify vrsave, special-purpose register #256, as reserved
+ # for system use.
+-my $no_vrsave = ($flavour =~ /linux-ppc64le/);
++my $no_vrsave = ($flavour =~ /linux-ppc64(le|v2)/);
+ my $mtspr = sub {
+ my ($f,$idx,$ra) = @_;
+ if ($idx == 256 && $no_vrsave) {
diff --git a/srcpkgs/linux4.19/patches/ppc64-be-gcc91.patch b/srcpkgs/linux4.19/patches/ppc64-be-gcc91.patch
deleted file mode 100644
index f168c161e6c..00000000000
--- a/srcpkgs/linux4.19/patches/ppc64-be-gcc91.patch
+++ /dev/null
@@ -1,28 +0,0 @@
-Since gcc 9.1, adding `-mcall-aixdesc` to cflags makes it no longer define
-`__linux__`, which breaks compilation of the kernel in places where the macro
-is checked (which is multiple). This behavior is actually more correct than
-it was before, as `-mcall-aixdesc` is only meant to be used when compiling
-for AIX.
-
-However, it is not enough to just drop it and use `-mabi=elfv1`, as that
-results in a ton of undefined references all over the place when linking.
-So work around it until upstream sorts it out.
-
---- a/arch/powerpc/Makefile
-+++ b/arch/powerpc/Makefile
-@@ -96,6 +96,7 @@ endif
- ifdef CONFIG_PPC64
- cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
- cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc)
-+cflags-$(CONFIG_CPU_BIG_ENDIAN) += -D__linux__
- aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1)
- aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2
- endif
-@@ -151,6 +152,7 @@ AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2)
- else
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcall-aixdesc)
-+CFLAGS-$(CONFIG_PPC64) += -D__linux__
- AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv1)
- endif
- CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mcmodel=medium,$(call cc-option,-mminimal-toc))
next reply other threads:[~2019-07-12 17:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-12 17:48 voidlinux-github [this message]
2019-07-13 3:01 ` voidlinux-github
2019-07-13 4:05 ` voidlinux-github
2019-07-13 4:29 ` voidlinux-github
2019-07-13 7:19 ` [PR PATCH] [Merged]: " voidlinux-github
2019-07-13 13:27 ` voidlinux-github
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