patches/gcc/3.4.6/220-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 12 19:24:03 2010 +0100 (2010-01-12)
changeset 1761 88020b2c3246
parent 339 bd5e0a849352
permissions -rw-r--r--
scripts/functions: change handling of nochdir

- 'nochdir' must be the first option
- have systematic pushd/popd, even if nochdir
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diff -durN gcc-3.4.6.orig/gcc/config/arm/linux-elf.h gcc-3.4.6/gcc/config/arm/linux-elf.h
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--- gcc-3.4.6.orig/gcc/config/arm/linux-elf.h	2007-08-15 22:51:01.000000000 +0200
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+++ gcc-3.4.6/gcc/config/arm/linux-elf.h	2007-08-15 23:05:42.000000000 +0200
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@@ -30,17 +30,34 @@
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 /* Do not assume anything about header files.  */
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 #define NO_IMPLICIT_EXTERN_C
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+/*
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+ * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*
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+ * (big endian) configurations.
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+ */
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+#if TARGET_BIG_ENDIAN_DEFAULT
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+#define TARGET_ENDIAN_DEFAULT ARM_FLAG_BIG_END
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+#define TARGET_ENDIAN_OPTION "mbig-endian"
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+#define TARGET_LINKER_EMULATION "armelfb_linux"
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+#else
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+#define TARGET_ENDIAN_DEFAULT 0
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+#define TARGET_ENDIAN_OPTION "mlittle-endian"
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+#define TARGET_LINKER_EMULATION "armelf_linux"
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+#endif
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+
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 /* Default is to use APCS-32 mode.  */
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 #undef  TARGET_DEFAULT
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-#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)
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+#define TARGET_DEFAULT \
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+		( ARM_FLAG_APCS_32 | \
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+		  ARM_FLAG_MMU_TRAPS | \
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+		  TARGET_ENDIAN_DEFAULT )
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 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
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-#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
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+#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
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 #undef  MULTILIB_DEFAULTS
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 #define MULTILIB_DEFAULTS \
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-	{ "marm", "mlittle-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" }
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+	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mapcs-32", "mno-thumb-interwork" }
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 #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
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@@ -94,7 +111,7 @@
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    %{rdynamic:-export-dynamic} \
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    %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "} \
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    -X \
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-   %{mbig-endian:-EB}" \
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+   %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
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    SUBTARGET_EXTRA_LINK_SPEC
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 #define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
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diff -durN gcc-3.4.6.orig/gcc/config.gcc gcc-3.4.6/gcc/config.gcc
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--- gcc-3.4.6.orig/gcc/config.gcc	2007-08-15 22:51:01.000000000 +0200
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+++ gcc-3.4.6/gcc/config.gcc	2007-08-15 23:05:42.000000000 +0200
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@@ -678,6 +678,11 @@
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 	;;
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 arm*-*-linux*)			# ARM GNU/Linux with ELF
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 	tm_file="dbxelf.h elfos.h linux.h arm/elf.h  arm/linux-gas.h arm/linux-elf.h arm/aout.h arm/arm.h"
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+	case $target in
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+	arm*b-*)
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+		tm_defines="TARGET_BIG_ENDIAN_DEFAULT=1 $tm_defines"
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+		;;
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+	esac
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 	tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"
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 	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
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 	gnu_ld=yes