X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=tools%2Fperf%2Futil%2Fevsel.c;h=cda44b0e821c63baea1f9da52123184768fdd2f4;hb=caa164e37374609056c4d25255a6c7bef7a7f43b;hp=e4f7902d5afa62f0aecab1103bc05ca4bcb226e9;hpb=23416e230416a9201561f1db553b1515e9959f6a;p=karo-tx-linux.git

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index e4f7902d5afa..cda44b0e821c 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -273,8 +273,20 @@ struct perf_evsel *perf_evsel__new_cycles(void)
 	struct perf_evsel *evsel;
 
 	event_attr_init(&attr);
+	/*
+	 * Unnamed union member, not supported as struct member named
+	 * initializer in older compilers such as gcc 4.4.7
+	 *
+	 * Just for probing the precise_ip:
+	 */
+	attr.sample_period = 1;
 
 	perf_event_attr__set_max_precise_ip(&attr);
+	/*
+	 * Now let the usual logic to set up the perf_event_attr defaults
+	 * to kick in when we return and before perf_evsel__open() is called.
+	 */
+	attr.sample_period = 0;
 
 	evsel = perf_evsel__new(&attr);
 	if (evsel == NULL)