patches/gcc/4.2.1/240-arm-bigendian.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed May 20 20:13:13 2009 +0000 (2009-05-20)
changeset 1345 27fec561af53
parent 313 2f223aafc7cb
permissions -rw-r--r--
Merge the uClinux/noMMU stuff back to /trunk:
- merge Linux and uClinux back to a single kernel
- add ARCH_USE_MMU and acquainted config options that
architectures can auto-select
- make binutils and elf2flt two "Binary utilities" that
go in a single common sub-{menu,directory} structure

-------- diffstat follows --------
/trunk/scripts/build/kernel/uclinux.sh | 2 0 2 0 -
/trunk/scripts/build/kernel/linux.sh | 206 204 2 0 +++++++++++++++++++++++++++++
/trunk/scripts/build/kernel/linux-common.sh | 198 0 198 0 ----------------------------
/trunk/scripts/build/binutils.sh | 232 0 232 0 --------------------------------
/trunk/scripts/build/elf2flt.sh | 150 0 150 0 ---------------------
/trunk/scripts/crosstool-NG.sh.in | 6 4 2 0 +
/trunk/config/kernel/linux.in | 249 249 0 0 +++++++++++++++++++++++++++++++++++
/trunk/config/kernel/linux.in-common | 252 0 252 0 -----------------------------------
/trunk/config/kernel/uclinux.in | 21 0 21 0 ---
/trunk/config/target.in | 23 22 1 0 +++
/trunk/config/elf2flt.in | 49 0 49 0 -------
/trunk/config/libc/glibc.in | 2 1 1 0
/trunk/config/libc/eglibc.in | 2 1 1 0
/trunk/config/config.in | 1 0 1 0 -
/trunk/config/arch/sh.in | 1 1 0 0 +
/trunk/config/arch/arm.in | 2 1 1 0
/trunk/config/arch/powerpc.in | 1 1 0 0 +
/trunk/config/arch/ia64.in | 1 1 0 0 +
/trunk/config/arch/alpha.in | 1 1 0 0 +
/trunk/config/arch/x86.in | 1 1 0 0 +
/trunk/config/arch/mips.in | 1 1 0 0 +
/trunk/config/arch/powerpc64.in | 1 1 0 0 +
22 files changed, 489 insertions(+), 913 deletions(-)
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     1
diff -durN gcc-4.2.1.orig/gcc/config/arm/linux-elf.h gcc-4.2.1/gcc/config/arm/linux-elf.h
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--- gcc-4.2.1.orig/gcc/config/arm/linux-elf.h	2006-02-17 00:29:10.000000000 +0100
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+++ gcc-4.2.1/gcc/config/arm/linux-elf.h	2007-08-03 20:36:43.000000000 +0200
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@@ -28,19 +28,33 @@
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 #undef  TARGET_VERSION
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 #define TARGET_VERSION  fputs (" (ARM GNU/Linux with ELF)", stderr);
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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 MASK_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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 /* Now we define the strings used to build the spec file.  */
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 #undef  LIB_SPEC
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@@ -61,7 +75,7 @@
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    %{rdynamic:-export-dynamic} \
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    %{!dynamic-linker:-dynamic-linker " LINUX_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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 #undef  LINK_SPEC
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diff -durN gcc-4.2.1.orig/gcc/config.gcc gcc-4.2.1/gcc/config.gcc
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--- gcc-4.2.1.orig/gcc/config.gcc	2007-08-03 20:29:52.000000000 +0200
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+++ gcc-4.2.1/gcc/config.gcc	2007-08-03 20:36:43.000000000 +0200
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@@ -705,6 +705,11 @@
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 	tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"
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 	tmake_file="${tmake_file} t-linux arm/t-arm"
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 	case ${target} in
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+	arm*b-*)
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+		tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
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+		;;
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+	esac
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+	case ${target} in
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 	arm*-*-linux-*eabi)
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 	    tm_file="$tm_file arm/bpabi.h arm/linux-eabi.h"
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 	    tmake_file="$tmake_file arm/t-arm-elf arm/t-bpabi arm/t-linux-eabi"