1 2012-05-01 Richard Earnshaw <rearnsha@arm.com>
3 * arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_DEFAULT): Avoid ifdef
4 comparing enumeration values. Update comments.
6 2012-04-26 Michael Hope <michael.hope@linaro.org>
7 Richard Earnshaw <rearnsha@arm.com>
9 * config/arm/linux-eabi.h (GLIBC_DYNAMIC_LINKER_SOFT_FLOAT): Define.
10 (GLIBC_DYNAMIC_LINKER_HARD_FLOAT): Define.
11 (GLIBC_DYNAMIC_LINKER_DEFAULT): Define.
12 (GLIBC_DYNAMIC_LINKER): Redefine to use the hard float path.
15 --- gcc-4_7-branch/gcc/config/arm/linux-eabi.h 2012-03-02 13:36:59.221206250 +0100
16 +++ trunk/gcc/config/arm/linux-eabi.h 2012-05-03 19:41:43.484057843 +0200
20 /* We default to a soft-float ABI so that binaries can run on all
22 + target hardware. If you override this to use the hard-float ABI then
23 + change the setting of GLIBC_DYNAMIC_LINKER_DEFAULT as well. */
24 #undef TARGET_DEFAULT_FLOAT_ABI
25 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
28 #undef SUBTARGET_EXTRA_LINK_SPEC
29 #define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION
31 -/* Use ld-linux.so.3 so that it will be possible to run "classic"
32 - GNU/Linux binaries on an EABI system. */
33 +/* GNU/Linux on ARM currently supports three dynamic linkers:
34 + - ld-linux.so.2 - for the legacy ABI
35 + - ld-linux.so.3 - for the EABI-derived soft-float ABI
36 + - ld-linux-armhf.so.3 - for the EABI-derived hard-float ABI.
37 + All the dynamic linkers live in /lib.
38 + We default to soft-float, but this can be overridden by changing both
39 + GLIBC_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI. */
41 #undef GLIBC_DYNAMIC_LINKER
42 -#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
43 +#define GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-linux.so.3"
44 +#define GLIBC_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-linux-armhf.so.3"
45 +#define GLIBC_DYNAMIC_LINKER_DEFAULT GLIBC_DYNAMIC_LINKER_SOFT_FLOAT
47 +#define GLIBC_DYNAMIC_LINKER \
48 + "%{mfloat-abi=hard:" GLIBC_DYNAMIC_LINKER_HARD_FLOAT "} \
49 + %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
50 + %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
52 /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
53 use the GNU/Linux version, not the generic BPABI version. */