From 50e200f07948400694238e08e7add73df5ba8f83 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Sat, 20 Apr 2013 11:02:28 -0700 Subject: 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 Link: http://lkml.kernel.org/r/1366480949-32292-1-git-send-email-andi@firstfloor.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/string.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'tools/perf/util/string.c') 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; +} -- cgit v1.1