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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/microblaze | |
| 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/microblaze')
| -rw-r--r-- | src/internal/microblaze/syscall.s | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/src/internal/microblaze/syscall.s b/src/internal/microblaze/syscall.s deleted file mode 100644 index e0312e78..00000000 --- a/src/internal/microblaze/syscall.s +++ /dev/null @@ -1,14 +0,0 @@ -.global __syscall -.hidden __syscall -.type __syscall,@function -__syscall: - addi r12, r5, 0 # Save the system call number - add r5, r6, r0 # Shift the arguments, arg1 - add r6, r7, r0 # arg2 - add r7, r8, r0 # arg3 - add r8, r9, r0 # arg4 - add r9, r10, r0 # arg5 - lwi r10, r1, 28 # Get arg6. - brki r14, 0x8 # syscall - rtsd r15, 8 - nop |