patches/gcc/4.4.5/130-cross-compile.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:46:47 2011 +0200 (2011-07-17)
changeset 2892 aa934ec4b4ee
permissions -rw-r--r--
cc/gcc: add the backend/frontend infra for final gcc

Currently, we issue the bare-metal compiler from the pass_1 & pass_2
core compilers, because the final gcc breaks while doing so.

This implies we have to build some libces during the start_files step,
instead of the standard libc step. This is the case for newlib.

By adding a backend/frontend infra to the final gcc, we can abstract
what backend to call: the standard backend for non-bare-metal gcc,
and the core backend for bare-metal.

This patch is just an no-op, it just adds the final backend and
frontend without changing the way bare-metal is built, to come in a
subsequent patch.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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diff -durN gcc-4.4.5.orig/gcc/configure gcc-4.4.5/gcc/configure
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--- gcc-4.4.5.orig/gcc/configure	2010-06-20 17:43:53.000000000 +0200
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+++ gcc-4.4.5/gcc/configure	2010-10-09 22:58:36.000000000 +0200
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@@ -13997,7 +13997,7 @@
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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-4.4.5.orig/gcc/configure.ac gcc-4.4.5/gcc/configure.ac
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--- gcc-4.4.5.orig/gcc/configure.ac	2010-06-20 17:43:53.000000000 +0200
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+++ gcc-4.4.5/gcc/configure.ac	2010-10-09 22:58:36.000000000 +0200
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@@ -1720,7 +1720,7 @@
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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-4.4.5.orig/gcc/unwind-dw2.c gcc-4.4.5/gcc/unwind-dw2.c
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--- gcc-4.4.5.orig/gcc/unwind-dw2.c	2010-01-20 09:39:18.000000000 +0100
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+++ gcc-4.4.5/gcc/unwind-dw2.c	2010-10-09 22:58:36.000000000 +0200
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@@ -329,9 +329,11 @@
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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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 /* 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,