2 Copyright (C) 1995-2012 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
20 #include <jmpbuf-offsets.h>
21 #include <asm-syntax.h>
24 #include <stap-probe.h>
26 #define PARMS LINKAGE /* no space for saved regs */
28 #define SIGMSK JMPBUF+PTR_SIZE
30 ENTRY (BP_SYM (__sigsetjmp))
33 movl JMPBUF(%esp), %eax
34 CHECK_BOUNDS_BOTH_WIDE (%eax, JMPBUF(%esp), $JB_SIZE)
37 movl %ebx, (JB_BX*4)(%eax)
38 movl %esi, (JB_SI*4)(%eax)
39 movl %edi, (JB_DI*4)(%eax)
40 leal JMPBUF(%esp), %ecx /* Save SP as it will be after we return. */
44 movl %ecx, (JB_SP*4)(%eax)
45 movl PCOFF(%esp), %ecx /* Save PC we are returning to now. */
46 LIBC_PROBE (setjmp, 3, 4@%eax, -4@SIGMSK(%esp), 4@%ecx)
50 movl %ecx, (JB_PC*4)(%eax)
51 LEAVE /* pop frame pointer to prepare for tail-call. */
52 movl %ebp, (JB_BP*4)(%eax) /* Save caller's frame pointer. */
54 #if defined NOT_IN_libc && defined IS_IN_rtld
55 /* In ld.so we never save the signal mask. */
59 /* Make a tail call to __sigjmp_save; it takes the same args. */
62 END (BP_SYM (__sigsetjmp))