1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
19 *
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
30 * SUCH DAMAGE.
31 *
32 * @(#)setjmp.s 5.1 (Berkeley) 4/23/90"
33 */
34
35#if defined(LIBC_SCCS) && !defined(lint)
36 .text
37 .asciz "$Id: sigsetjmp.S,v 1.1 1993/12/05 13:01:05 ats Exp $"
38#endif /* LIBC_SCCS and not lint */
39#include <machine/asm.h>
| 1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)setjmp.s 5.1 (Berkeley) 4/23/90"
33 */
34
35#if defined(LIBC_SCCS) && !defined(lint)
36 .text
37 .asciz "$Id: sigsetjmp.S,v 1.1 1993/12/05 13:01:05 ats Exp $"
38#endif /* LIBC_SCCS and not lint */
39#include <machine/asm.h>
|
40__FBSDID("$FreeBSD: head/lib/libc/amd64/gen/sigsetjmp.S 267307 2014-06-09 21:35:36Z jilles $");
| 40__FBSDID("$FreeBSD: head/lib/libc/amd64/gen/sigsetjmp.S 287292 2015-08-29 14:25:01Z kib $");
|
41
42#include "SYS.h"
43
44/*-
45 * TODO:
46 * Rename sigsetjmp to __sigsetjmp and siglongjmp to __siglongjmp,
47 * remove the other *jmp functions and define everything in terms
48 * of the renamed functions. This requires compiler support for
49 * the renamed functions (introduced in gcc-2.5.3; previous versions
50 * only supported *jmp with 0 or 1 leading underscores).
51 *
52 * Restore _all_ the registers and the signal mask atomically. Can
53 * use sigreturn() if sigreturn() works.
54 */
55
56ENTRY(sigsetjmp)
57 movl %esi,88(%rdi) /* 11; savemask */
58 testl %esi,%esi
59 jz 2f
60 pushq %rdi
61 movq %rdi,%rcx
62 movq $1,%rdi /* SIG_BLOCK */
63 movq $0,%rsi /* (sigset_t*)set */
64 leaq 72(%rcx),%rdx /* 9,10 (sigset_t*)oset */
65 /* stack is 16-byte aligned */
| 41
42#include "SYS.h"
43
44/*-
45 * TODO:
46 * Rename sigsetjmp to __sigsetjmp and siglongjmp to __siglongjmp,
47 * remove the other *jmp functions and define everything in terms
48 * of the renamed functions. This requires compiler support for
49 * the renamed functions (introduced in gcc-2.5.3; previous versions
50 * only supported *jmp with 0 or 1 leading underscores).
51 *
52 * Restore _all_ the registers and the signal mask atomically. Can
53 * use sigreturn() if sigreturn() works.
54 */
55
56ENTRY(sigsetjmp)
57 movl %esi,88(%rdi) /* 11; savemask */
58 testl %esi,%esi
59 jz 2f
60 pushq %rdi
61 movq %rdi,%rcx
62 movq $1,%rdi /* SIG_BLOCK */
63 movq $0,%rsi /* (sigset_t*)set */
64 leaq 72(%rcx),%rdx /* 9,10 (sigset_t*)oset */
65 /* stack is 16-byte aligned */
|
66 call PIC_PLT(CNAME(_sigprocmask))
| 66 call __libc_sigprocmask
|
67 popq %rdi
682: movq %rdi,%rcx
69 movq 0(%rsp),%rdx /* retval */
70 movq %rdx, 0(%rcx) /* 0; retval */
71 movq %rbx, 8(%rcx) /* 1; rbx */
72 movq %rsp,16(%rcx) /* 2; rsp */
73 movq %rbp,24(%rcx) /* 3; rbp */
74 movq %r12,32(%rcx) /* 4; r12 */
75 movq %r13,40(%rcx) /* 5; r13 */
76 movq %r14,48(%rcx) /* 6; r14 */
77 movq %r15,56(%rcx) /* 7; r15 */
78 fnstcw 64(%rcx) /* 8; fpu cw */
79 xorq %rax,%rax
80 ret
81END(sigsetjmp)
82
83 WEAK_REFERENCE(__siglongjmp, siglongjmp)
84ENTRY(__siglongjmp)
85 cmpl $0,88(%rdi)
86 jz 2f
87 movq %rdi,%rdx
88 pushq %rdi
89 pushq %rsi
90 movq $3,%rdi /* SIG_SETMASK */
91 leaq 72(%rdx),%rsi /* (sigset_t*)set */
92 movq $0,%rdx /* (sigset_t*)oset */
93 subq $0x8,%rsp /* make the stack 16-byte aligned */
| 67 popq %rdi
682: movq %rdi,%rcx
69 movq 0(%rsp),%rdx /* retval */
70 movq %rdx, 0(%rcx) /* 0; retval */
71 movq %rbx, 8(%rcx) /* 1; rbx */
72 movq %rsp,16(%rcx) /* 2; rsp */
73 movq %rbp,24(%rcx) /* 3; rbp */
74 movq %r12,32(%rcx) /* 4; r12 */
75 movq %r13,40(%rcx) /* 5; r13 */
76 movq %r14,48(%rcx) /* 6; r14 */
77 movq %r15,56(%rcx) /* 7; r15 */
78 fnstcw 64(%rcx) /* 8; fpu cw */
79 xorq %rax,%rax
80 ret
81END(sigsetjmp)
82
83 WEAK_REFERENCE(__siglongjmp, siglongjmp)
84ENTRY(__siglongjmp)
85 cmpl $0,88(%rdi)
86 jz 2f
87 movq %rdi,%rdx
88 pushq %rdi
89 pushq %rsi
90 movq $3,%rdi /* SIG_SETMASK */
91 leaq 72(%rdx),%rsi /* (sigset_t*)set */
92 movq $0,%rdx /* (sigset_t*)oset */
93 subq $0x8,%rsp /* make the stack 16-byte aligned */
|
94 call PIC_PLT(CNAME(_sigprocmask))
| 94 call __libc_sigprocmask
|
95 addq $0x8,%rsp
96 popq %rsi
97 popq %rdi /* jmpbuf */
982: movq %rdi,%rdx
99 movq %rsi,%rax /* retval */
100 movq 0(%rdx),%rcx
101 movq 8(%rdx),%rbx
102 movq 16(%rdx),%rsp
103 movq 24(%rdx),%rbp
104 movq 32(%rdx),%r12
105 movq 40(%rdx),%r13
106 movq 48(%rdx),%r14
107 movq 56(%rdx),%r15
108 fldcw 64(%rdx)
109 testq %rax,%rax
110 jnz 1f
111 incq %rax
1121: movq %rcx,0(%rsp)
113 ret
114END(__siglongjmp)
115
116 .section .note.GNU-stack,"",%progbits
| 95 addq $0x8,%rsp
96 popq %rsi
97 popq %rdi /* jmpbuf */
982: movq %rdi,%rdx
99 movq %rsi,%rax /* retval */
100 movq 0(%rdx),%rcx
101 movq 8(%rdx),%rbx
102 movq 16(%rdx),%rsp
103 movq 24(%rdx),%rbp
104 movq 32(%rdx),%r12
105 movq 40(%rdx),%r13
106 movq 48(%rdx),%r14
107 movq 56(%rdx),%r15
108 fldcw 64(%rdx)
109 testq %rax,%rax
110 jnz 1f
111 incq %rax
1121: movq %rcx,0(%rsp)
113 ret
114END(__siglongjmp)
115
116 .section .note.GNU-stack,"",%progbits
|