1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/* setjmp for x86-64.
Copyright (C) 2001, 2003, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <jmpbuf-offsets.h>
#include <asm-syntax.h>
ENTRY (__sigsetjmp)
/* Save registers. */
movq %rbx, (JB_RBX*8)(%rdi)
#ifdef PTR_MANGLE
movq %rbp, %rax
PTR_MANGLE (%rax)
movq %rax, (JB_RBP*8)(%rdi)
#else
movq %rbp, (JB_RBP*8)(%rdi)
#endif
movq %r12, (JB_R12*8)(%rdi)
movq %r13, (JB_R13*8)(%rdi)
movq %r14, (JB_R14*8)(%rdi)
movq %r15, (JB_R15*8)(%rdi)
leaq 8(%rsp), %rdx /* Save SP as it will be after we return. */
#ifdef PTR_MANGLE
PTR_MANGLE (%rdx)
#endif
movq %rdx, (JB_RSP*8)(%rdi)
movq (%rsp), %rax /* Save PC we are returning to now. */
#ifdef PTR_MANGLE
PTR_MANGLE (%rax)
#endif
movq %rax, (JB_PC*8)(%rdi)
#if defined NOT_IN_libc && defined IS_IN_rtld
/* In ld.so we never save the signal mask. */
xorl %eax, %eax
retq
#else
/* Make a tail call to __sigjmp_save; it takes the same args. */
# ifdef PIC
jmp C_SYMBOL_NAME (BP_SYM (__sigjmp_save))@PLT
# else
jmp BP_SYM (__sigjmp_save)
# endif
#endif
END (BP_SYM (__sigsetjmp))
hidden_def (__sigsetjmp)
|
