patches/gcc/4.3.2/130-cross-compile.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jan 31 17:49:27 2009 +0000 (2009-01-31)
changeset 1183 268544004e77
parent 747 d3e603e7c17c
permissions -rw-r--r--
On 20090131.1659+0100, Vincent Sanders <vince@kyllikki.org> wrote:
[This]patch is a bit more involved. The patch addresses a gcc
regression in the 4.3 series (specifically this patch is against 4.3.2
which does *not* have a lot of other issues which affect kernel building)

GCC bug tracker has this issue as
#38453 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38453
#32044 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32044

comment 65 of #32044 has the fix being applied to gcc trunk as revision #142719

The attached patch is a backport to gcc 4.3.2 which allows this
version to be used to generate correct output for various ARM kernel
build (and indeed is teh correct answer in general).

/trunk/patches/gcc/4.3.2/360-fix-expensive-optimize.patch | 207 207 0 0 +++++++++++++++++++++
1 file changed, 207 insertions(+)
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Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/08_all_gcc-4.1-cross-compile.patch
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Some notes on the 'bootstrap with or without libc headers' debate:
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http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html
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http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html
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diff -durN gcc-4.3.2.orig/gcc/configure gcc-4.3.2/gcc/configure
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--- gcc-4.3.2.orig/gcc/configure	2008-08-01 11:51:03.000000000 +0200
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+++ gcc-4.3.2/gcc/configure	2008-09-23 19:39:43.000000000 +0200
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@@ -13442,7 +13442,7 @@
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 	    | powerpc*-*-*,powerpc64*-*-*)
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 		CROSS="$CROSS -DNATIVE_CROSS" ;;
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 	esac
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-elif test "x$TARGET_SYSTEM_ROOT" != x; then
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+elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
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         SYSTEM_HEADER_DIR=$build_system_header_dir
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 fi
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diff -durN gcc-4.3.2.orig/gcc/configure.ac gcc-4.3.2/gcc/configure.ac
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--- gcc-4.3.2.orig/gcc/configure.ac	2008-08-01 11:51:03.000000000 +0200
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+++ gcc-4.3.2/gcc/configure.ac	2008-09-23 19:39:43.000000000 +0200
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@@ -1749,7 +1749,7 @@
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 	    | powerpc*-*-*,powerpc64*-*-*)
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 		CROSS="$CROSS -DNATIVE_CROSS" ;;
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 	esac
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-elif test "x$TARGET_SYSTEM_ROOT" != x; then
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+elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
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         SYSTEM_HEADER_DIR=$build_system_header_dir 
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 fi
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diff -durN gcc-4.3.2.orig/gcc/unwind-dw2.c gcc-4.3.2/gcc/unwind-dw2.c
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--- gcc-4.3.2.orig/gcc/unwind-dw2.c	2007-07-25 20:14:57.000000000 +0200
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+++ gcc-4.3.2/gcc/unwind-dw2.c	2008-09-23 19:39:43.000000000 +0200
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@@ -334,9 +334,11 @@
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 }
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 #endif
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+#ifndef inhibit_libc
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 #ifdef MD_UNWIND_SUPPORT
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 #include MD_UNWIND_SUPPORT
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 #endif
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+#endif
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    42
 
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 /* Extract any interesting information from the CIE for the translation
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    unit F belongs to.  Return a pointer to the byte after the augmentation,