1/*- 2 * Copyright (c) 2003 Peter Wemm <peter@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <machine/asm.h> |
28__FBSDID("$FreeBSD: head/lib/libc/i386/sys/getcontext.S 184548 2008-11-02 01:28:47Z peter $"); |
29 30#include <SYS.h> 31 32/* 33 * This has to be magic to handle the multiple returns. 34 * Otherwise, the setcontext() syscall will return here and we'll 35 * pop off the return address and go to the *setcontext* call. 36 */ --- 6 unchanged lines hidden (view full) --- 43 mov $SYS_getcontext,%eax 44 KERNCALL 45 jb 1f 46 addl $4,%esp /* remove stale (setcontext) return address */ 47 jmp *%ecx /* restore return address */ 481: 49 PIC_PROLOGUE 50 jmp PIC_PLT(HIDENAME(cerror)) |
51END(__sys_getcontext) |