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| author | Rich Felker <dalias@aerifal.cx> | 2019-04-10 20:11:19 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2019-04-10 20:11:19 -0400 |
| commit | 788d5e24ca19c6291cebd8d1ad5b5ed6abf42665 (patch) | |
| tree | 1ae614424b48069950baec8ae09699d750fe3414 /src/internal/powerpc | |
| parent | 1bcdaeee6e659f1d856717c9aa562a068f2f3bd4 (diff) | |
| download | musl-788d5e24ca19c6291cebd8d1ad5b5ed6abf42665.tar.gz musl-788d5e24ca19c6291cebd8d1ad5b5ed6abf42665.tar.xz musl-788d5e24ca19c6291cebd8d1ad5b5ed6abf42665.zip | |
remove external __syscall function and last remaining users
the weak version of __syscall_cp_c was using a tail call to __syscall to avoid duplicating the 6-argument syscall code inline in small static-linked programs, but now that __syscall no longer exists, the inline expansion is no longer duplication. the syscall.h machinery suppported up to 7 syscall arguments, only via an external __syscall function, but we presently have no syscall call points that actually make use of that many, and the kernel only defines 7-argument calling conventions for arm, powerpc (32-bit), and sh. if it turns out we need them in the future, they can easily be added.
Diffstat (limited to 'src/internal/powerpc')
| -rw-r--r-- | src/internal/powerpc/syscall.s | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/src/internal/powerpc/syscall.s b/src/internal/powerpc/syscall.s deleted file mode 100644 index 5b16b8f2..00000000 --- a/src/internal/powerpc/syscall.s +++ /dev/null @@ -1,19 +0,0 @@ - .global __syscall - .hidden __syscall - .type __syscall,@function -__syscall: - mr 0, 3 # Save the system call number - mr 3, 4 # Shift the arguments: arg1 - mr 4, 5 # arg2 - mr 5, 6 # arg3 - mr 6, 7 # arg4 - mr 7, 8 # arg5 - mr 8, 9 # arg6 - sc - bnslr+ # return if not summary overflow - #else error: - # return negated value. - neg 3, 3 - blr - .end __syscall - .size __syscall, .-__syscall |