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#ifdef WANT_SYSENTER
.data
.type __vsyscall,@object
.global __vsyscall
__vsyscall:
.Lvsyscall:
.long .Lcallint80
#endif
.text
.weak exit
exit:
.global _exit
.type _exit,@function
_exit:
movb $1,%al
.size _exit,.-_exit
.global __unified_syscall
.type __unified_syscall,@function
__unified_syscall:
movzbl %al, %eax
.size __unified_syscall,.-__unified_syscall
.global __unified_return
.type __unified_return,@function
__unified_return:
push %edi
push %esi
push %ebx
movl %esp,%edi
/* we use movl instead of pop because otherwise a signal would
destroy the stack frame and crash the program, although it
would save a few bytes. */
movl 0x10(%edi),%ebx
movl 0x14(%edi),%ecx
movl 0x18(%edi),%edx
movl 0x1c(%edi),%esi
movl 0x20(%edi),%edi
#ifdef WANT_SYSENTER
call *.Lvsyscall /* 0xffffe000 */
#else
int $0x80
#endif
cmp $-124,%eax
jb .Lnoerror
neg %eax
#ifdef WANT_THREAD_SAFE
movl %eax,%ebx
call __errno_location
movl %ebx,(%eax)
orl $-1,%eax
#else
mov %eax,errno
sbb %eax,%eax # eax = eax - eax - CY = -1
#endif
.Lnoerror:
pop %ebx
pop %esi
pop %edi
ret
.size __unified_return,.-__unified_return
#ifdef WANT_SYSENTER
.Lcallint80:
int $0x80
ret
#endif
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