1 | /* Low-level statistical profiling support function. Linux/x86-64 version. |
2 | Copyright (C) 2001-2016 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 | #include <signal.h> |
20 | #include <sigcontextinfo.h> |
21 | |
22 | static void |
23 | __profil_counter (int signo, SIGCONTEXT scp) |
24 | { |
25 | profil_count ((void *) GET_PC (scp)); |
26 | |
27 | /* This is a hack to prevent the compiler from implementing the |
28 | above function call as a sibcall. The sibcall would overwrite |
29 | the signal context. */ |
30 | asm volatile ("" ); |
31 | } |
32 | |