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| author | Fangrui Song <maskray@gcc.gnu.org> | 2024-10-27 12:37:21 -0700 |
|---|---|---|
| committer | Fangrui Song <maskray@gcc.gnu.org> | 2024-10-27 12:53:12 -0700 |
| commit | 8e6cc1e7cdbb431a0950e491ed2830213f3ad81b (patch) | |
| tree | 8b7f457711da626d5e61ef32783e002aa0f2d773 | |
| parent | 211459e12147e9ed42c0a0947b1b95b551e03ef3 (diff) | |
| download | gcc-8e6cc1e7cdbb431a0950e491ed2830213f3ad81b.zip gcc-8e6cc1e7cdbb431a0950e491ed2830213f3ad81b.tar.gz gcc-8e6cc1e7cdbb431a0950e491ed2830213f3ad81b.tar.bz2 | |
arm: Support -mfdpic for more targets
Targets that are not arm*-*-uclinuxfdpiceabi can use -S -mfdpic, but -c
-mfdpic does not pass --fdpic to gas. This is an unnecessary
restriction. Just define the ASM_SPEC in bpabi.h.
Additionally, use armelf[b]_linux_fdpiceabi emulations for -mfdpic in
linux-eabi.h. This will allow a future musl fdpic port to use the
desired BFD emulation.
gcc/ChangeLog:
* config/arm/bpabi.h (TARGET_FDPIC_ASM_SPEC): Transform -mfdpic.
* config/arm/linux-eabi.h (TARGET_FDPIC_LINKER_EMULATION): Define.
(SUBTARGET_EXTRA_LINK_SPEC): Use TARGET_FDPIC_LINKER_EMULATION
if -mfdpic.
| -rw-r--r-- | gcc/config/arm/bpabi.h | 2 | ||||
| -rw-r--r-- | gcc/config/arm/linux-eabi.h | 5 |
2 files changed, 5 insertions, 2 deletions
diff --git a/gcc/config/arm/bpabi.h b/gcc/config/arm/bpabi.h index 2e418fa..fd4b65a 100644 --- a/gcc/config/arm/bpabi.h +++ b/gcc/config/arm/bpabi.h @@ -55,7 +55,7 @@ #define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}" -#define TARGET_FDPIC_ASM_SPEC "" +#define TARGET_FDPIC_ASM_SPEC "%{mfdpic: --fdpic}" #define BE8_LINK_SPEC \ "%{!r:%{!mbe32:%:be8_linkopt(%{mlittle-endian:little}" \ diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h index 50b753d..b12e4ff 100644 --- a/gcc/config/arm/linux-eabi.h +++ b/gcc/config/arm/linux-eabi.h @@ -46,12 +46,15 @@ #undef TARGET_LINKER_EMULATION #if TARGET_BIG_ENDIAN_DEFAULT #define TARGET_LINKER_EMULATION "armelfb_linux_eabi" +#define TARGET_FDPIC_LINKER_EMULATION "armelfb_linux_fdpiceabi" #else #define TARGET_LINKER_EMULATION "armelf_linux_eabi" +#define TARGET_FDPIC_LINKER_EMULATION "armelf_linux_fdpiceabi" #endif #undef SUBTARGET_EXTRA_LINK_SPEC -#define SUBTARGET_EXTRA_LINK_SPEC " -m " TARGET_LINKER_EMULATION +#define SUBTARGET_EXTRA_LINK_SPEC " -m %{mfdpic: " \ + TARGET_FDPIC_LINKER_EMULATION ";:" TARGET_LINKER_EMULATION "}" /* GNU/Linux on ARM currently supports three dynamic linkers: - ld-linux.so.2 - for the legacy ABI |