glibc (2.38)
1 /* Copyright (C) 2001-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18 #ifndef _PROFIL_H
19 #define _PROFIL_H 1
20
21 #include <features.h>
22
23 #include <sys/time.h>
24 #include <sys/types.h>
25
26 /* This interface is intended to follow the sprofil() system calls as
27 described by the sprofil(2) man page of Irix v6.5, except that:
28
29 - there is no a priori limit on number of text sections
30 - pr_scale is declared as unsigned long (instead of "unsigned int")
31 - pr_size is declared as size_t (instead of "unsigned int")
32 - pr_off is declared as void * (instead of "__psunsigned_t")
33 - the overflow bin (pr_base==0, pr_scale==2) can appear anywhere
34 in the profp array
35 - PROF_FAST has no effect */
36
37 struct prof
38 {
39 void *pr_base; /* buffer base */
40 size_t pr_size; /* buffer size */
41 size_t pr_off; /* pc offset */
42 unsigned long int pr_scale; /* pc scaling (fixed-point number) */
43 };
44
45 enum
46 {
47 PROF_USHORT = 0, /* use 16-bit counters (default) */
48 PROF_UINT = 1 << 0, /* use 32-bit counters */
49 PROF_FAST = 1 << 1 /* profile faster than usual */
50 };
51
52
53 __BEGIN_DECLS
54
55 extern int sprofil (struct prof *__profp, int __profcnt,
56 struct timeval *__tvp, unsigned int __flags) __THROW;
57
58 __END_DECLS
59
60 #endif /* profil.h */
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