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authorIngo Molnar <mingo@kernel.org>2013-10-01 13:26:13 +0200
committerIngo Molnar <mingo@kernel.org>2013-10-09 08:48:49 +0200
commitfb1c9185e36cf9c616ac15f54e54a01f052672bd (patch)
treeab6bcf354a39a2e662fd3492ca9f8b4384b3a7d9 /tools/perf/util/path.c
parent7a10822a30060eceddda16c051086c00acb449c9 (diff)
downloadop-kernel-dev-fb1c9185e36cf9c616ac15f54e54a01f052672bd.zip
op-kernel-dev-fb1c9185e36cf9c616ac15f54e54a01f052672bd.tar.gz
tools/perf: Turn strlcpy() into a __weak function
The strlcpy() feature check slows every build unnecessarily - so make it a __weak function so it does not have to be auto-detected. If the libc (or any other library) has an strlcpy() implementation it will be used - otherwise our fallback is active. Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: http://lkml.kernel.org/n/tip-zjbrcupapu08ePsyYhhhxiwk@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/path.c')
-rw-r--r--tools/perf/util/path.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
index f395874..5d13cb4 100644
--- a/tools/perf/util/path.c
+++ b/tools/perf/util/path.c
@@ -22,19 +22,23 @@ static const char *get_perf_dir(void)
return ".";
}
-#ifndef HAVE_STRLCPY_SUPPORT
-size_t strlcpy(char *dest, const char *src, size_t size)
+/*
+ * If libc has strlcpy() then that version will override this
+ * implementation:
+ */
+size_t __weak strlcpy(char *dest, const char *src, size_t size)
{
size_t ret = strlen(src);
if (size) {
size_t len = (ret >= size) ? size - 1 : ret;
+
memcpy(dest, src, len);
dest[len] = '\0';
}
+
return ret;
}
-#endif
static char *get_pathname(void)
{
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