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authorRich Felker <dalias@aerifal.cx>2019-04-10 20:11:19 -0400
committerRich Felker <dalias@aerifal.cx>2019-04-10 20:11:19 -0400
commit788d5e24ca19c6291cebd8d1ad5b5ed6abf42665 (patch)
tree1ae614424b48069950baec8ae09699d750fe3414 /src/internal/i386
parent1bcdaeee6e659f1d856717c9aa562a068f2f3bd4 (diff)
downloadmusl-788d5e24ca19c6291cebd8d1ad5b5ed6abf42665.tar.gz
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/i386')
-rw-r--r--src/internal/i386/syscall.s21
1 files changed, 0 insertions, 21 deletions
diff --git a/src/internal/i386/syscall.s b/src/internal/i386/syscall.s
deleted file mode 100644
index 004ddfef..00000000
--- a/src/internal/i386/syscall.s
+++ /dev/null
@@ -1,21 +0,0 @@
-.global __syscall
-.hidden __syscall
-.type __syscall,@function
-__syscall:
- push %ebx
- push %esi
- push %edi
- push %ebp
- mov 20(%esp),%eax
- mov 24(%esp),%ebx
- mov 28(%esp),%ecx
- mov 32(%esp),%edx
- mov 36(%esp),%esi
- mov 40(%esp),%edi
- mov 44(%esp),%ebp
- call *%gs:16
- pop %ebp
- pop %edi
- pop %esi
- pop %ebx
- ret