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1 | /* Low-level statistical profiling support function. Linux/ARM version. |
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2 | Copyright (C) 1996-2022 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 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <signal.h> |
20 | #include <sigcontextinfo.h> |
21 | |
22 | void |
23 | __profil_counter (int signo, siginfo_t *_si, void *scp) |
24 | { |
25 | profil_count (sigcontext_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 | #ifndef __profil_counter |
33 | # include <shlib-compat.h> |
34 | # if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_31) |
35 | compat_symbol (libc, __profil_counter, profil_counter, GLIBC_2_0); |
36 | # endif |
37 | #endif |
38 |
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