diff options
| author | Paul Burton <paul.burton@mips.com> | 2018-11-07 23:14:09 +0000 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2018-11-09 10:23:18 -0800 |
| commit | ea6a37373f9aca4ecb98ea3a298fda57177ee6a5 (patch) | |
| tree | 8a374d55b08308d32052936e3d30496d21da6acf /arch/mips/kernel/elf.c | |
| parent | 4eec81d7d8b212766d04da8b30c07715a32b5dfb (diff) | |
MIPS: Avoid FP ELF checks when CONFIG_MIPS_FP_SUPPORT=n
When CONFIG_MIPS_FP_SUPPORT=n we don't support floating point, so we can
avoid needless checks of ELF headers specifying the FP ABI or NaN
encoding to use. Deselect CONFIG_ARCH_BINFMT_ELF_STATE in this case to
avoid the need for our arch_elf_pt_proc() & arch_check_elf() functions,
and stub out the mips_set_personality_nan() & mips_set_personality_fp()
functions such that SET_PERSONALITY() doesn't need to worry about any of
this.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/21011/
Cc: linux-mips@linux-mips.org
Diffstat (limited to 'arch/mips/kernel/elf.c')
| -rw-r--r-- | arch/mips/kernel/elf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c index 731325a61a78..72056d54a2b8 100644 --- a/arch/mips/kernel/elf.c +++ b/arch/mips/kernel/elf.c @@ -16,6 +16,8 @@ #include <asm/cpu-features.h> #include <asm/cpu-info.h> +#ifdef CONFIG_MIPS_FP_SUPPORT + /* Whether to accept legacy-NaN and 2008-NaN user binaries. */ bool mips_use_nan_legacy; bool mips_use_nan_2008; @@ -326,6 +328,8 @@ void mips_set_personality_nan(struct arch_elf_state *state) } } +#endif /* CONFIG_MIPS_FP_SUPPORT */ + int mips_elf_read_implies_exec(void *elf_ex, int exstack) { if (exstack != EXSTACK_DISABLE_X) { |