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1 | /* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. x86-64 version. | |
2 | Copyright (C) 1994-2015 Free Software Foundation, Inc. | |
3 | This file is part of the GNU C Library. | |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
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/>. */ | |
18 | ||
19 | /* This just does a tail-call to `__sigsetjmp (ARG, 0)'. | |
20 | We cannot do it in C because it must be a tail-call, so frame-unwinding | |
21 | in setjmp doesn't clobber the state restored by longjmp. */ | |
22 | ||
23 | #include <sysdep.h> | |
24 | #define _ASM | |
25 | #define _SETJMP_H | |
26 | #include <bits/setjmp.h> | |
27 | ||
28 | ENTRY (_setjmp) | |
29 | /* Set up arguments, we only need to set the second arg. */ | |
30 | xorl %esi, %esi | |
31 | #ifdef PIC | |
32 | jmp HIDDEN_JUMPTARGET (__sigsetjmp) | |
33 | #else | |
34 | jmp __sigsetjmp | |
35 | #endif | |
36 | END (_setjmp) | |
37 | libc_hidden_def (_setjmp) |