Remove unnecessary instructions from x86/x86_64 syscalls.

__set_errno returns -1 exactly so that callers don't need to bother. The other architectures were already taking advantage of this, but no one had ever fixed x86 and x86_64. Change-Id: Ie131494be664f6c4a1bbf8c61bbbed58eac56122
2014-06-05 17:24:30 -07:00
parent 50b79530c6
commit 15a0456d0b
386 changed files with 1 additions and 388 deletions
--- a/libc/arch-x86_64/syscalls/__rt_sigprocmask.S
+++ b/libc/arch-x86_64/syscalls/__rt_sigprocmask.S
@@ -11,7 +11,6 @@ ENTRY(__rt_sigprocmask)
    negl    %eax
    movl    %eax, %edi
    call    __set_errno
-    orq     $-1, %rax
 1:
    ret
 END(__rt_sigprocmask)