Robert P. J. DAY says:
apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3. so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories. seems like a
cheap way to add a couple new versions.
1 diff -dur gcc-4.0.4.orig/gcc/config/arm/linux-elf.h gcc-4.0.4/gcc/config/arm/linux-elf.h
2 --- gcc-4.0.4.orig/gcc/config/arm/linux-elf.h 2007-02-02 19:24:50.000000000 +0100
3 +++ gcc-4.0.4/gcc/config/arm/linux-elf.h 2007-02-02 19:26:12.000000000 +0100
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 #undef TARGET_DEFAULT_FLOAT_ABI
23 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
26 -#define TARGET_DEFAULT (0)
27 +#define TARGET_DEFAULT (TARGET_ENDIAN_DEFAULT)
29 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6
31 -#define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux -p"
32 +#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION " -p"
34 #undef MULTILIB_DEFAULTS
35 #define MULTILIB_DEFAULTS \
36 - { "marm", "mlittle-endian", "mhard-float", "mno-thumb-interwork" }
37 + { "marm", TARGET_ENDIAN_OPTION, "mhard-float", "mno-thumb-interwork" }
39 /* The GNU C++ standard library requires that these macros be defined. */
40 #undef CPLUSPLUS_CPP_SPEC
42 %{rdynamic:-export-dynamic} \
43 %{!dynamic-linker:-dynamic-linker " ELF_DYNAMIC_LINKER "} \
45 - %{mbig-endian:-EB}" \
46 + %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
47 SUBTARGET_EXTRA_LINK_SPEC
49 #define TARGET_OS_CPP_BUILTINS() \
50 Only in gcc-4.0.4/gcc/config/arm: linux-elf.h.orig
51 diff -dur gcc-4.0.4.orig/gcc/config.gcc gcc-4.0.4/gcc/config.gcc
52 --- gcc-4.0.4.orig/gcc/config.gcc 2007-02-02 19:24:50.000000000 +0100
53 +++ gcc-4.0.4/gcc/config.gcc 2007-02-02 19:26:12.000000000 +0100
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 $tm_defines"
63 tmake_file="${tmake_file} arm/t-arm arm/t-linux"
64 extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"