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-rw-r--r--tools/perf/util/util.c25
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index d03599fbe78..2055cf38041 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -1,6 +1,11 @@
#include "../perf.h"
#include "util.h"
#include <sys/mman.h>
+#ifndef NO_BACKTRACE
+#include <execinfo.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
/*
* XXX We need to find a better place for these things...
@@ -158,3 +163,23 @@ size_t hex_width(u64 v)
return n;
}
+
+/* Obtain a backtrace and print it to stdout. */
+#ifndef NO_BACKTRACE
+void dump_stack(void)
+{
+ void *array[16];
+ size_t size = backtrace(array, ARRAY_SIZE(array));
+ char **strings = backtrace_symbols(array, size);
+ size_t i;
+
+ printf("Obtained %zd stack frames.\n", size);
+
+ for (i = 0; i < size; i++)
+ printf("%s\n", strings[i]);
+
+ free(strings);
+}
+#else
+void dump_stack(void) {}
+#endif