diff options
| -rw-r--r-- | tools/perf/util/util.c | 19 | ||||
| -rw-r--r-- | tools/perf/util/util.h | 2 |
2 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index d03599f..1b8775c 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -1,6 +1,9 @@ #include "../perf.h" #include "util.h" #include <sys/mman.h> +#include <execinfo.h> +#include <stdio.h> +#include <stdlib.h> /* * XXX We need to find a better place for these things... @@ -158,3 +161,19 @@ size_t hex_width(u64 v) return n; } + +/* Obtain a backtrace and print it to stdout. */ +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); +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index b13c733..00a93a9 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -266,4 +266,6 @@ size_t hex_width(u64 v); char *rtrim(char *s); +void dump_stack(void); + #endif |
