Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 <perf/core.h>
9#include <internal/lib.h>
10#include "internal.h"
11
12static int __base_pr(enum libperf_print_level level, const char *format,
13 va_list args)
14{
15 return vfprintf(stderr, format, args);
16}
17
18static libperf_print_fn_t __libperf_pr = __base_pr;
19
20__printf(2, 3)
21void libperf_print(enum libperf_print_level level, const char *format, ...)
22{
23 va_list args;
24
25 if (!__libperf_pr)
26 return;
27
28 va_start(args, format);
29 __libperf_pr(level, format, args);
30 va_end(args);
31}
32
33void libperf_init(libperf_print_fn_t fn)
34{
35 page_size = sysconf(_SC_PAGE_SIZE);
36 __libperf_pr = fn;
37}