summaryrefslogtreecommitdiff
path: root/tools/perf/util/string.c
diff options
context:
space:
mode:
authorAndi Kleen <ak@linux.intel.com>2013-04-20 18:02:28 (GMT)
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-07-12 16:53:52 (GMT)
commit50e200f07948400694238e08e7add73df5ba8f83 (patch)
tree91a2b5a0e0d06d1d7690bac23077d7d4c7c42c11 /tools/perf/util/string.c
parent380512345e13c3af64e59627f1b993c4faa94a84 (diff)
downloadlinux-fsl-qoriq-50e200f07948400694238e08e7add73df5ba8f83.tar.xz
perf tools: Default to cpu// for events v5
When an event fails to parse and it's not in a new style format, try to parse it again as a cpu event. This allows to use sysfs exported events directly without //, so you can use perf record -e mem-loads ... instead of perf record -e cpu/mem-loads/ Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1366480949-32292-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/string.c')
-rw-r--r--tools/perf/util/string.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 29c7b2c..f0b0c00 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -387,3 +387,27 @@ void *memdup(const void *src, size_t len)
return p;
}
+
+/**
+ * str_append - reallocate string and append another
+ * @s: pointer to string pointer
+ * @len: pointer to len (initialized)
+ * @a: string to append.
+ */
+int str_append(char **s, int *len, const char *a)
+{
+ int olen = *s ? strlen(*s) : 0;
+ int nlen = olen + strlen(a) + 1;
+ if (*len < nlen) {
+ *len = *len * 2;
+ if (*len < nlen)
+ *len = nlen;
+ *s = realloc(*s, *len);
+ if (!*s)
+ return -ENOMEM;
+ if (olen == 0)
+ **s = 0;
+ }
+ strcat(*s, a);
+ return 0;
+}