patches/gcc/4.0.4/190-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Dec 30 15:36:22 2009 +0100 (2009-12-30)
changeset 1669 61edd9d19e3c
parent 1 eeea35fbf182
permissions -rw-r--r--
scripts/functions: add aria2, a powerfull downloader

aria2 is a powerfull downloader that is capable of chunking and
parallel retrieval.

Due to li;itations in crosstool-NG retrieval facilities, it's not possible
to take fully advantage of aria2. It might happen that, in the future,
those limitations get lifted away, so we can take use features such as
parallel downloading from more than one server at the same time. For now,
it should still speed up downloads thanks to parallel downloading of chunks.
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diff -dur gcc-4.0.4.orig/gcc/config/arm/linux-elf.h gcc-4.0.4/gcc/config/arm/linux-elf.h
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--- gcc-4.0.4.orig/gcc/config/arm/linux-elf.h	2007-02-02 19:24:50.000000000 +0100
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+++ gcc-4.0.4/gcc/config/arm/linux-elf.h	2007-02-02 19:26:12.000000000 +0100
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@@ -31,19 +31,33 @@
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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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 #undef  TARGET_DEFAULT_FLOAT_ABI
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 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
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 #undef  TARGET_DEFAULT
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-#define TARGET_DEFAULT (0)
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+#define TARGET_DEFAULT (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", "mno-thumb-interwork" }
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+	{ "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
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 /* The GNU C++ standard library requires that these macros be defined.  */
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 #undef CPLUSPLUS_CPP_SPEC
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@@ -95,7 +109,7 @@
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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()		\
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Only in gcc-4.0.4/gcc/config/arm: linux-elf.h.orig
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diff -dur gcc-4.0.4.orig/gcc/config.gcc gcc-4.0.4/gcc/config.gcc
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--- gcc-4.0.4.orig/gcc/config.gcc	2007-02-02 19:24:50.000000000 +0100
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+++ gcc-4.0.4/gcc/config.gcc	2007-02-02 19:26:12.000000000 +0100
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@@ -672,6 +672,11 @@
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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 $tm_defines"
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+		;;
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+	esac
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 	tmake_file="${tmake_file} arm/t-arm arm/t-linux"
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 	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
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 	gnu_ld=yes