2 * Copyright (c) 1990 The Regents of the University of California.
5 * This code is derived from software contributed to Berkeley by
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * @(#)setjmp.s 5.1 (Berkeley) 4/23/90
33 * $Id: sigsetjmp.S,v 1.1 1993/12/05 13:01:05 ats Exp $
34 * $FreeBSD: src/lib/libc/amd64/gen/sigsetjmp.S,v 1.30 2008/11/02 01:10:54 peter Exp $
37 #include <machine/asm.h>
42 * Rename sigsetjmp to __sigsetjmp and siglongjmp to __siglongjmp,
43 * remove the other *jmp functions and define everything in terms
44 * of the renamed functions. This requires compiler support for
45 * the renamed functions (introduced in gcc-2.5.3; previous versions
46 * only supported *jmp with 0 or 1 leading underscores).
48 * Restore _all_ the registers and the signal mask atomically. Can
49 * use sigreturn() if sigreturn() works.
53 movl %esi,88(%rdi) /* 11; savemask */
58 movq $1,%rdi /* SIG_BLOCK */
59 movq $0,%rsi /* (sigset_t*)set */
60 leaq 72(%rcx),%rdx /* 9,10 (sigset_t*)oset */
61 call PIC_PLT(CNAME(_sigprocmask))
64 movq 0(%rsp),%rdx /* retval */
65 movq %rdx, 0(%rcx) /* 0; retval */
66 movq %rbx, 8(%rcx) /* 1; rbx */
67 movq %rsp,16(%rcx) /* 2; rsp */
68 movq %rbp,24(%rcx) /* 3; rbp */
69 movq %r12,32(%rcx) /* 4; r12 */
70 movq %r13,40(%rcx) /* 5; r13 */
71 movq %r14,48(%rcx) /* 6; r14 */
72 movq %r15,56(%rcx) /* 7; r15 */
73 fnstcw 64(%rcx) /* 8; fpu cw */
78 .weak CNAME(siglongjmp)
79 .set CNAME(siglongjmp),CNAME(__siglongjmp)
86 movq $3,%rdi /* SIG_SETMASK */
87 leaq 72(%rdx),%rsi /* (sigset_t*)set */
88 movq $0,%rdx /* (sigset_t*)oset */
89 call PIC_PLT(CNAME(_sigprocmask))
91 popq %rdi /* jmpbuf */
93 movq %rsi,%rax /* retval */