1*3ce311afSJiri Olsa // SPDX-License-Identifier: GPL-2.0-only
2*3ce311afSJiri Olsa
3*3ce311afSJiri Olsa #define __printf(a, b) __attribute__((format(printf, a, b)))
4*3ce311afSJiri Olsa
5*3ce311afSJiri Olsa #include <stdio.h>
6*3ce311afSJiri Olsa #include <stdarg.h>
7*3ce311afSJiri Olsa #include <unistd.h>
8*3ce311afSJiri Olsa #include <linux/compiler.h>
9*3ce311afSJiri Olsa #include <perf/core.h>
10*3ce311afSJiri Olsa #include <internal/lib.h>
11*3ce311afSJiri Olsa #include "internal.h"
12*3ce311afSJiri Olsa
__base_pr(enum libperf_print_level level __maybe_unused,const char * format,va_list args)13*3ce311afSJiri Olsa static int __base_pr(enum libperf_print_level level __maybe_unused, const char *format,
14*3ce311afSJiri Olsa va_list args)
15*3ce311afSJiri Olsa {
16*3ce311afSJiri Olsa return vfprintf(stderr, format, args);
17*3ce311afSJiri Olsa }
18*3ce311afSJiri Olsa
19*3ce311afSJiri Olsa static libperf_print_fn_t __libperf_pr = __base_pr;
20*3ce311afSJiri Olsa
21*3ce311afSJiri Olsa __printf(2, 3)
libperf_print(enum libperf_print_level level,const char * format,...)22*3ce311afSJiri Olsa void libperf_print(enum libperf_print_level level, const char *format, ...)
23*3ce311afSJiri Olsa {
24*3ce311afSJiri Olsa va_list args;
25*3ce311afSJiri Olsa
26*3ce311afSJiri Olsa if (!__libperf_pr)
27*3ce311afSJiri Olsa return;
28*3ce311afSJiri Olsa
29*3ce311afSJiri Olsa va_start(args, format);
30*3ce311afSJiri Olsa __libperf_pr(level, format, args);
31*3ce311afSJiri Olsa va_end(args);
32*3ce311afSJiri Olsa }
33*3ce311afSJiri Olsa
libperf_init(libperf_print_fn_t fn)34*3ce311afSJiri Olsa void libperf_init(libperf_print_fn_t fn)
35*3ce311afSJiri Olsa {
36*3ce311afSJiri Olsa page_size = sysconf(_SC_PAGE_SIZE);
37*3ce311afSJiri Olsa __libperf_pr = fn;
38*3ce311afSJiri Olsa }
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