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| author | Rich Felker <dalias@aerifal.cx> | 2019-09-26 19:14:36 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-09-26 19:14:36 -0400 |
| commit | 9f6dd78593e1d3b06f6e72f8479c91361e28ac28 (patch) | |
| tree | aa6fb50dd9eb2a74e0cf0c23bf00ef28765cfa07 /arch/mips64 | |
| parent | b678f7b46a614ca8985b3ef662d96036e06e8810 (diff) | |
| download | musl-9f6dd78593e1d3b06f6e72f8479c91361e28ac28.tar.gz musl-9f6dd78593e1d3b06f6e72f8479c91361e28ac28.tar.xz musl-9f6dd78593e1d3b06f6e72f8479c91361e28ac28.zip | |
fix mips r6 syscall clobber lists not to include hi/lo registers
mips r6 (an incompatible isa from traditional mips) removes the hi and lo registers used for mul/div results. older gcc versions accepted them in the clobber list for asm, but their presence is incorrect and breaks on later versions. in the process of fixing this, the clobber list for 32-bit mips syscalls has been deduplicated via a macro like on mips64 and n32.
Diffstat (limited to 'arch/mips64')
| -rw-r--r-- | arch/mips64/syscall_arch.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips64/syscall_arch.h b/arch/mips64/syscall_arch.h index 013908dd..69c429b8 100644 --- a/arch/mips64/syscall_arch.h +++ b/arch/mips64/syscall_arch.h @@ -3,9 +3,15 @@ #define SYSCALL_RLIM_INFINITY (-1UL/2) +#if __mips_isa_rev >= 6 +#define SYSCALL_CLOBBERLIST \ + "$1", "$3", "$10", "$11", "$12", "$13", \ + "$14", "$15", "$24", "$25", "memory" +#else #define SYSCALL_CLOBBERLIST \ "$1", "$3", "$10", "$11", "$12", "$13", \ "$14", "$15", "$24", "$25", "hi", "lo", "memory" +#endif static inline long __syscall0(long n) { |