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 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)setjmp.s 5.1 (Berkeley) 4/23/90"
37 * $Id: sigsetjmp.S,v 1.1 1993/12/05 13:01:05 ats Exp $
38 * $FreeBSD: src/lib/libc/amd64/gen/sigsetjmp.S,v 1.28 2003/06/02 22:37:53 peter Exp $
39 * $DragonFly: src/lib/libc/amd64/gen/sigsetjmp.S,v 1.1 2004/02/02 05:43:14 dillon Exp $
42 #include <machine/asm.h>
48 * Rename sigsetjmp to __sigsetjmp and siglongjmp to __siglongjmp,
49 * remove the other *jmp functions and define everything in terms
50 * of the renamed functions. This requires compiler support for
51 * the renamed functions (introduced in gcc-2.5.3; previous versions
52 * only supported *jmp with 0 or 1 leading underscores).
54 * Restore _all_ the registers and the signal mask atomically. Can
55 * use sigreturn() if sigreturn() works.
59 movl %esi,88(%rdi) /* 11; savemask */
64 movq $1,%rdi /* SIG_BLOCK */
65 movq $0,%rsi /* (sigset_t*)set */
66 leaq 72(%rcx),%rdx /* 9,10 (sigset_t*)oset */
67 call PIC_PLT(CNAME(_sigprocmask))
70 movq 0(%rsp),%rdx /* retval */
71 movq %rdx, 0(%rcx) /* 0; retval */
72 movq %rbx, 8(%rcx) /* 1; rbx */
73 movq %rsp,16(%rcx) /* 2; rsp */
74 movq %rbp,24(%rcx) /* 3; rbp */
75 movq %r12,32(%rcx) /* 4; r12 */
76 movq %r13,40(%rcx) /* 5; r13 */
77 movq %r14,48(%rcx) /* 6; r14 */
78 movq %r15,56(%rcx) /* 7; r15 */
79 fnstcw 64(%rcx) /* 8; fpu cw */
83 .weak CNAME(siglongjmp)
84 .set CNAME(siglongjmp),CNAME(__siglongjmp)
91 movq $3,%rdi /* SIG_SETMASK */
92 leaq 72(%rdx),%rsi /* (sigset_t*)set */
93 movq $0,%rdx /* (sigset_t*)oset */
94 call PIC_PLT(CNAME(_sigprocmask))
96 popq %rdi /* jmpbuf */
98 movq %rsi,%rax /* retval */