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1 /* Machine-dependent SIGPROF signal handler. "Generic" version w/ sigcontext
2 Copyright (C) 1996-2021 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 /* In many Unix systems signal handlers are called like this
20 and the interrupted PC is easily findable in the `struct sigcontext'. */
21
22 #ifdef SA_SIGINFO
23 #include <sigcontextinfo.h>
24
25 static void
26 __profil_counter (int signr, siginfo_t *info, void *ctx)
27 {
28 profil_count (sigcontext_get_pc (ctx));
29 }
30 #else
31 static void
32 __profil_counter (int signr, int code, struct sigcontext *scp)
33 {
34 profil_count ((uintptr_t) scp->sc_pc);
35 }
36 #endif