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Patch GCC 4.7.4 for native musl support

Browse source 
Backport upstream patches to enable native musl toolchain support in
GCC. Only the changes required for i386 were taken, excluding
changes for libgo and libfortran.

These patches enable binaries built using gcc and g++ to automatically
use musl's dynamic linker as their interpreter when present during the
build.
This commit is contained in:
Dor Askayo 2022-09-10 20:49:56 +03:00
parent 4113d60b24
commit 238520fee7
10 changed files with 579 additions and 25 deletions
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39
sysc/gcc-4.7.4/patches/0007-x86-musl-support.patch Normal file
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@ -0,0 +1,39 @@
SPDX-FileCopyrightText: 2022 Dor Askayo <dor.askayo@gmail.com>
SPDX-FileCopyrightText: 2015 Gregor Richards <gregor.richards@uwaterloo.ca>
SPDX-License-Identifier: GPL-2.0-or-later
Backported from upstream commit cf57e99350d0b44876979c71986d8ca29c361f83
x86 musl support
2015-05-15 Gregor Richards <gregor.richards@uwaterloo.ca>
* config/i386/linux.h (MUSL_DYNAMIC_LINKER): Define.
* config/i386/linux64.h (MUSL_DYNAMIC_LINKER32): Define.
(MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERX32): Define.
From-SVN: r223218
--- gcc/config/i386/linux.h
+++ gcc/config/i386/linux.h
@@ -22,3 +22,6 @@ along with GCC; see the file COPYING3. If not see
#define GNU_USER_LINK_EMULATION "elf_i386"
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+
+#undef MUSL_DYNAMIC_LINKER
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
--- gcc/config/i386/linux64.h
+++ gcc/config/i386/linux64.h
@@ -31,3 +31,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
#define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
#define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
+
+#undef MUSL_DYNAMIC_LINKER32
+#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
+#undef MUSL_DYNAMIC_LINKER64
+#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
+#undef MUSL_DYNAMIC_LINKERX32
+#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"