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authorGravatar Mike Frysinger <vapier@gentoo.org>2006-04-13 05:51:11 +0000
committerGravatar Mike Frysinger <vapier@gentoo.org>2006-04-13 05:51:11 +0000
commit3b7f835fde0c6ae224fe1c945e0a6c80bb9716c0 (patch)
tree3d00130d477ad75c04f0e9cf928643db7dda709a
parentff6ca6a7107fd884fcb2e5292dfcaaa0b432aafc (diff)
downloadbuildroot-3b7f835fde0c6ae224fe1c945e0a6c80bb9716c0.tar.gz
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forward port big endian arm fix
-rw-r--r--toolchain/gcc/4.2/800-arm-bigendian.patch67
1 files changed, 67 insertions, 0 deletions
diff --git a/toolchain/gcc/4.2/800-arm-bigendian.patch b/toolchain/gcc/4.2/800-arm-bigendian.patch
new file mode 100644
index 0000000000..9ad4e59d1c
--- /dev/null
+++ b/toolchain/gcc/4.2/800-arm-bigendian.patch
@@ -0,0 +1,67 @@
+By Lennert Buytenhek <buytenh@wantstofly.org>
+Adds support for arm*b-linux* big-endian ARM targets
+
+See http://gcc.gnu.org/PR16350
+
+--- gcc-4.2.0/gcc/config/arm/linux-elf.h
++++ gcc-4.2.0/gcc/config/arm/linux-elf.h
+@@ -28,19 +28,33 @@
+ #undef TARGET_VERSION
+ #define TARGET_VERSION fputs (" (ARM GNU/Linux with ELF)", stderr);
+
++/*
++ * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*
++ * (big endian) configurations.
++ */
++#if TARGET_BIG_ENDIAN_DEFAULT
++#define TARGET_ENDIAN_DEFAULT MASK_BIG_END
++#define TARGET_ENDIAN_OPTION "mbig-endian"
++#define TARGET_LINKER_EMULATION "armelfb_linux"
++#else
++#define TARGET_ENDIAN_DEFAULT 0
++#define TARGET_ENDIAN_OPTION "mlittle-endian"
++#define TARGET_LINKER_EMULATION "armelf_linux"
++#endif
++
+ #undef TARGET_DEFAULT_FLOAT_ABI
+ #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
+
+ #undef TARGET_DEFAULT
+-#define TARGET_DEFAULT (0)
++#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
+
+ #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
+
+-#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
++#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
+
+ #undef MULTILIB_DEFAULTS
+ #define MULTILIB_DEFAULTS \
+- { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
++ { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
+
+ /* Now we define the strings used to build the spec file. */
+ #undef LIB_SPEC
+@@ -61,7 +75,7 @@
+ %{rdynamic:-export-dynamic} \
+ %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "} \
+ -X \
+- %{mbig-endian:-EB}" \
++ %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
+ SUBTARGET_EXTRA_LINK_SPEC
+
+ #undef LINK_SPEC
+--- gcc-4.2.0/gcc/config.gcc
++++ gcc-4.2.0/gcc/config.gcc
+@@ -694,6 +694,11 @@
+ ;;
+ arm*-*-linux*) # ARM GNU/Linux with ELF
+ tm_file="dbxelf.h elfos.h linux.h arm/elf.h arm/linux-gas.h arm/linux-elf.h"
++ case $target in
++ arm*b-*)
++ tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
++ ;;
++ esac
+ tmake_file="${tmake_file} t-linux arm/t-arm"
+ case ${target} in
+ arm*-*-linux-*eabi)