diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2019-08-06 15:25:25 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-09-25 09:51:48 -0300 |
| commit | 20f2be1d48ec293b5a935595bd0c2e2915ffa77c (patch) | |
| tree | f949d8ac25875acc7639ba10f5cc026c94103760 /tools/perf/lib/core.c | |
| parent | d5a99483dece17dbde01968a7ffc03b7f575dc11 (diff) | |
| download | linux-20f2be1d48ec293b5a935595bd0c2e2915ffa77c.tar.bz2 | |
libperf: Move 'page_size' global variable to libperf
We need the 'page_size' variable in libperf, so move it there.
Add a libperf_init() as a global libperf init function to obtain this
value via sysconf() at tool start.
Committer notes:
Add internal/lib.h to tools/perf/ files using 'page_size', sometimes
replacing util.h with it if that was the only reason for having util.h
included.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lore.kernel.org/lkml/20190913132355.21634-33-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/lib/core.c')
| -rw-r--r-- | tools/perf/lib/core.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/lib/core.c b/tools/perf/lib/core.c index 29d5e3348718..6689d593c2d1 100644 --- a/tools/perf/lib/core.c +++ b/tools/perf/lib/core.c @@ -4,7 +4,9 @@ #include <stdio.h> #include <stdarg.h> +#include <unistd.h> #include <perf/core.h> +#include <internal/lib.h> #include "internal.h" static int __base_pr(enum libperf_print_level level, const char *format, @@ -32,3 +34,8 @@ void libperf_print(enum libperf_print_level level, const char *format, ...) __libperf_pr(level, format, args); va_end(args); } + +void libperf_init(void) +{ + page_size = sysconf(_SC_PAGE_SIZE); +} |