mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-27 13:36:47 +02:00
94266d6389
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4038 3c298f89-4303-0410-b956-a3cf2f4a3e73
71 lines
2.4 KiB
Diff
71 lines
2.4 KiB
Diff
By Lennert Buytenhek <buytenh@wantstofly.org>
|
|
Adds support for arm*b-linux* big-endian ARM targets
|
|
|
|
See http://gcc.gnu.org/PR16350
|
|
|
|
diff -urN gcc-3.4.1-dist/gcc/config/arm/linux-elf.h gcc-3.4.1/gcc/config/arm/linux-elf.h
|
|
--- gcc-3.4.1-dist/gcc/config/arm/linux-elf.h 2004-08-16 16:01:50.000000000 -0500
|
|
+++ gcc-3.4.1/gcc/config/arm/linux-elf.h 2004-08-16 15:43:40.000000000 -0500
|
|
@@ -30,17 +30,34 @@
|
|
/* Do not assume anything about header files. */
|
|
#define NO_IMPLICIT_EXTERN_C
|
|
|
|
+/*
|
|
+ * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*
|
|
+ * (big endian) configurations.
|
|
+ */
|
|
+#if TARGET_BIG_ENDIAN_DEFAULT
|
|
+#define TARGET_ENDIAN_DEFAULT ARM_FLAG_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
|
|
+
|
|
/* Default is to use APCS-32 mode. */
|
|
#undef TARGET_DEFAULT
|
|
-#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)
|
|
+#define TARGET_DEFAULT \
|
|
+ ( ARM_FLAG_APCS_32 | \
|
|
+ ARM_FLAG_MMU_TRAPS | \
|
|
+ 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", "mapcs-32", "mno-thumb-interwork" }
|
|
+ { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mapcs-32", "mno-thumb-interwork" }
|
|
|
|
#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
|
|
|
|
@@ -101,7 +118,7 @@
|
|
%{rdynamic:-export-dynamic} \
|
|
%{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2} \
|
|
-X \
|
|
- %{mbig-endian:-EB}" \
|
|
+ %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
|
|
SUBTARGET_EXTRA_LINK_SPEC
|
|
#endif
|
|
|
|
diff -urN gcc-3.4.1-dist/gcc/config.gcc gcc-3.4.1/gcc/config.gcc
|
|
--- gcc-3.4.1-dist/gcc/config.gcc 2004-08-16 16:01:50.000000000 -0500
|
|
+++ gcc-3.4.1/gcc/config.gcc 2004-08-16 16:01:25.000000000 -0500
|
|
@@ -672,6 +672,11 @@
|
|
;;
|
|
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 arm/aout.h arm/arm.h"
|
|
+ case $target in
|
|
+ arm*b-*)
|
|
+ tm_defines="TARGET_BIG_ENDIAN_DEFAULT=1 $tm_defines"
|
|
+ ;;
|
|
+ esac
|
|
tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"
|
|
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
|
|
gnu_ld=yes
|