From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- tools/perf/perf-read-vdso.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 tools/perf/perf-read-vdso.c (limited to 'tools/perf/perf-read-vdso.c') diff --git a/tools/perf/perf-read-vdso.c b/tools/perf/perf-read-vdso.c new file mode 100644 index 000000000..764e2547c --- /dev/null +++ b/tools/perf/perf-read-vdso.c @@ -0,0 +1,34 @@ +#include +#include + +#define VDSO__MAP_NAME "[vdso]" + +/* + * Include definition of find_vdso_map() also used in util/vdso.c for + * building perf. + */ +#include "util/find-vdso-map.c" + +int main(void) +{ + void *start, *end; + size_t size, written; + + if (find_vdso_map(&start, &end)) + return 1; + + size = end - start; + + while (size) { + written = fwrite(start, 1, size, stdout); + if (!written) + return 1; + start += written; + size -= written; + } + + if (fflush(stdout)) + return 1; + + return 0; +} -- cgit v1.2.3