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authorBlackNoxis <steven.darklight@gmail.com>2015-06-15 19:42:26 +0300
committerBlackNoxis <steven.darklight@gmail.com>2015-06-15 19:42:26 +0300
commita74bf6d2b35b2ef3254ba8330eac10d70d5d096f (patch)
tree3e7f271d69b8843feef5bb69158f4666866ce369 /sys-devel/gcc/files/4.1.0
parent75bbf3d6547e6e13e452c06e6a4f07367add5ba1 (diff)
[gcc] adding gentoo gcc.
Diffstat (limited to 'sys-devel/gcc/files/4.1.0')
-rw-r--r--sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch40
-rw-r--r--sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch64
2 files changed, 104 insertions, 0 deletions
diff --git a/sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch
new file mode 100644
index 00000000..523caa48
--- /dev/null
+++ b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-cross-compile.patch
@@ -0,0 +1,40 @@
+Some notes on the 'bootstrap with or without libc headers' debate:
+http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html
+http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html
+
+--- gcc/unwind-dw2.c
++++ gcc/unwind-dw2.c
+@@ -253,9 +253,11 @@
+ }
+ #endif
+
++#ifndef inhibit_libc
+ #ifdef MD_UNWIND_SUPPORT
+ #include MD_UNWIND_SUPPORT
+ #endif
++#endif
+
+ /* Extract any interesting information from the CIE for the translation
+ unit F belongs to. Return a pointer to the byte after the augmentation,
+--- gcc/configure
++++ gcc/configure
+@@ -12857,7 +12857,7 @@ then
+ | powerpc*-*-*,powerpc64*-*-*)
+ CROSS="$CROSS -DNATIVE_CROSS" ;;
+ esac
+-elif test "x$TARGET_SYSTEM_ROOT" != x; then
++elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
+ SYSTEM_HEADER_DIR=$build_system_header_dir
+ fi
+
+--- gcc/configure.ac
++++ gcc/configure.ac
+@@ -1717,7 +1717,7 @@ then
+ | powerpc*-*-*,powerpc64*-*-*)
+ CROSS="$CROSS -DNATIVE_CROSS" ;;
+ esac
+-elif test "x$TARGET_SYSTEM_ROOT" != x; then
++elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
+ SYSTEM_HEADER_DIR=$build_system_header_dir
+ fi
+
diff --git a/sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch
new file mode 100644
index 00000000..6090d66d
--- /dev/null
+++ b/sys-devel/gcc/files/4.1.0/gcc-4.1.0-fast-math-i386-Os-workaround.patch
@@ -0,0 +1,64 @@
+workaround for lame stack packing on i386 ...
+
+ - build gcc with -Os (crtfastmath.o to be specific)
+ - crtfastmath.o is installed into gcc libdir
+ - run gcc with -ffast-math and get crtfastmath.o linked in
+ - resulting compiled app segfaults due to init code in
+ crtfastmath.o that has mis-aligned structure on stack
+
+http://bugs.gentoo.org/147020
+http://gcc.gnu.org/PR28621
+
+this is supposed to be fixed in current 4.1 branch, but i'm unable to get
+the fix to work so until i can figure out what i'm doing wrong, we'll use
+this workaround for now.
+
+--- gcc-4.1.1/gcc/config/i386/crtfastmath.c
++++ gcc-4.1.1/gcc/config/i386/crtfastmath.c
+@@ -37,6 +37,23 @@
+ #define FXSAVE (1 << 24)
+ #define SSE (1 << 25)
+
++struct
++{
++ unsigned short int cwd;
++ unsigned short int swd;
++ unsigned short int twd;
++ unsigned short int fop;
++ long int fip;
++ long int fcs;
++ long int foo;
++ long int fos;
++ long int mxcsr;
++ long int mxcsr_mask;
++ long int st_space[32];
++ long int xmm_space[32];
++ long int padding[56];
++} __attribute__ ((aligned (16))) fxsave;
++
+ static void __attribute__((constructor))
+ set_fast_math (void)
+ {
+@@ -75,22 +92,6 @@
+ if (edx & FXSAVE)
+ {
+ /* Check if DAZ is available. */
+- struct
+- {
+- unsigned short int cwd;
+- unsigned short int swd;
+- unsigned short int twd;
+- unsigned short int fop;
+- long int fip;
+- long int fcs;
+- long int foo;
+- long int fos;
+- long int mxcsr;
+- long int mxcsr_mask;
+- long int st_space[32];
+- long int xmm_space[32];
+- long int padding[56];
+- } __attribute__ ((aligned (16))) fxsave;
+
+ __builtin_memset (&fxsave, 0, sizeof (fxsave));
+