_longjmp.gs

来自「minix操作系统最新版本（3.1.1）的源代码」· GS 代码 · 共 39 行

/ _longjmp.gnu.s
/
/ Created:	Oct 15, 1993 by Philip Homburg <[e-mail]>

.text
.globl __longjmp
__longjmp:
	movl	4(%esp), %eax		# jmp_buf
	cmpl	$0, 0(%eax)			# save mask?
	je		1f
	leal	4(%eax), %ebx		# pointer to sigset_t
	pushl	%ebx
	call	___oldsigset		# restore mask
	addl	$4, %esp
	movl	4(%esp), %eax		# jmp_buf
1:	
	movl	8(%esp), %ecx		# result value
	movl	12(%eax), %esp 		# restore stack pointer

	movl	8(%eax), %ebx 		# restore program counter
	movl	%ebx, 0(%esp)

	pushl	%ecx			# save result code
	
	movl	16(%eax), %ebp		# restore frame pointer
	movl	20(%eax), %ebx
	movl	24(%eax), %ecx
	movl	28(%eax), %edx
	movl	32(%eax), %esi
	movl	36(%eax), %edi
	pop	%eax
	testl	%eax, %eax
	jz	1f
	ret
1:	movl	$1, %eax
	ret

/ $PchId: _longjmp.gnu.s,v 1.4 1996/03/12 19:30:02 philip Exp $