1 // SPDX-License-Identifier: GPL-2.0-only
2
3 #define __printf(a, b) __attribute__((format(printf, a, b)))
4
5 #include <stdio.h>
6 #include <stdarg.h>
7 #include <unistd.h>
8 #include <linux/compiler.h>
9 #include <perf/core.h>
10 #include <internal/lib.h>
11 #include "internal.h"
12
13 static int __base_pr(enum libperf_print_level level __maybe_unused, const char *format,
14 va_list args)
15 {
16 return vfprintf(stderr, format, args);
17 }
18
19 static libperf_print_fn_t __libperf_pr = __base_pr;
20
21 __printf(2, 3)
22 void libperf_print(enum libperf_print_level level, const char *format, ...)
23 {
24 va_list args;
25
26 if (!__libperf_pr)
27 return;
28
29 va_start(args, format);
30 __libperf_pr(level, format, args);
31 va_end(args);
32 }
33
34 void libperf_init(libperf_print_fn_t fn)
35 {
36 page_size = sysconf(_SC_PAGE_SIZE);
37 __libperf_pr = fn;
38 }
39
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.