From 20f2be1d48ec293b5a935595bd0c2e2915ffa77c Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 6 Aug 2019 15:25:25 +0200 Subject: 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 Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20190913132355.21634-33-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/lib/include/internal/lib.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'tools/perf/lib/include/internal/lib.h') diff --git a/tools/perf/lib/include/internal/lib.h b/tools/perf/lib/include/internal/lib.h index 0b56f1201dc9..9168b7d2a7e1 100644 --- a/tools/perf/lib/include/internal/lib.h +++ b/tools/perf/lib/include/internal/lib.h @@ -4,6 +4,8 @@ #include +extern unsigned int page_size; + ssize_t readn(int fd, void *buf, size_t n); ssize_t writen(int fd, const void *buf, size_t n); -- cgit v1.2.3