Introduce target-specific LDFLAGS, the same way we have CFLAGS for the target.
It seems to be helping gcc somewhat into telling the correct endianness to ld that sticks with little endian even when the target is big (eg armeb-unknown-linux-uclibcgnueabi).
There's still work to do, especially finish the gcc part that is not in this commit.
/trunk/scripts/functions | 9 7 2 0 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
1 diff -durN gcc-3.4.6.orig/gcc/config/arm/linux-elf.h gcc-3.4.6/gcc/config/arm/linux-elf.h
2 --- gcc-3.4.6.orig/gcc/config/arm/linux-elf.h 2007-08-15 22:51:01.000000000 +0200
3 +++ gcc-3.4.6/gcc/config/arm/linux-elf.h 2007-08-15 23:05:42.000000000 +0200
5 /* Do not assume anything about header files. */
6 #define NO_IMPLICIT_EXTERN_C
9 + * 'config.gcc' defines TARGET_BIG_ENDIAN_DEFAULT as 1 for arm*b-*
10 + * (big endian) configurations.
12 +#if TARGET_BIG_ENDIAN_DEFAULT
13 +#define TARGET_ENDIAN_DEFAULT ARM_FLAG_BIG_END
14 +#define TARGET_ENDIAN_OPTION "mbig-endian"
15 +#define TARGET_LINKER_EMULATION "armelfb_linux"
17 +#define TARGET_ENDIAN_DEFAULT 0
18 +#define TARGET_ENDIAN_OPTION "mlittle-endian"
19 +#define TARGET_LINKER_EMULATION "armelf_linux"
22 /* Default is to use APCS-32 mode. */
24 -#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_MMU_TRAPS)
25 +#define TARGET_DEFAULT \
26 + ( ARM_FLAG_APCS_32 | \
27 + ARM_FLAG_MMU_TRAPS | \
28 + TARGET_ENDIAN_DEFAULT )
30 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
32 -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
33 +#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
35 #undef MULTILIB_DEFAULTS
36 #define MULTILIB_DEFAULTS \
37 - { "marm", "mlittle-endian", "mhard-float", "mapcs-32", "mno-thumb-interwork" }
38 + { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mapcs-32", "mno-thumb-interwork" }
40 #define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
43 %{rdynamic:-export-dynamic} \
44 %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "} \
46 - %{mbig-endian:-EB}" \
47 + %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
48 SUBTARGET_EXTRA_LINK_SPEC
50 #define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
51 diff -durN gcc-3.4.6.orig/gcc/config.gcc gcc-3.4.6/gcc/config.gcc
52 --- gcc-3.4.6.orig/gcc/config.gcc 2007-08-15 22:51:01.000000000 +0200
53 +++ gcc-3.4.6/gcc/config.gcc 2007-08-15 23:05:42.000000000 +0200
56 arm*-*-linux*) # ARM GNU/Linux with ELF
57 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"
60 + tm_defines="TARGET_BIG_ENDIAN_DEFAULT=1 $tm_defines"
63 tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"
64 extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"