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- /*
- * June 27, 2001 Manuel Novoa III
- *
- * Modified to (hopefully) be PIC and REENTRANT safe.
- * Modified again to better follow the glibc implementation.
- *
- */
- #define _ERRNO_H 1
- #include <bits/errno.h>
- #include <sys/syscall.h>
- .text
- .globl __vfork;
- .type __vfork,@function;
- .align 1<<4;
-
- __vfork:
- #ifdef __NR_vfork
- popl %ecx
- movl $__NR_vfork,%eax
- int $0x80
- pushl %ecx
- cmpl $-4095,%eax
- jae .Lerror
- ret
- .Lerror:
- cmpl $-ENOSYS,%eax
- jne __syscall_error
- #endif
- /* Fall back on calling fork */
- movl $__NR_fork,%eax
- int $0x80
- cmpl $-4095,%eax
- jae __syscall_error
- ret
- __syscall_error:
- negl %eax
- pushl %eax
- #ifdef __PIC__
- call .Lthere
- .Lthere:
- popl %ebx
- addl $_GLOBAL_OFFSET_TABLE_+[.- .Lthere ], %ebx
- call __errno_location@PLT
- #else
- call __errno_location
- #endif
- popl %ecx
- movl %ecx, (%eax)
- xorl %eax, %eax
- decl %eax
- .Lsize:
- .size __vfork,.Lsize-__vfork
- .weak vfork ; vfork = __vfork
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