diff options
| author | David S. Miller <davem@davemloft.net> | 2012-10-02 23:02:10 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-10-02 23:02:10 -0400 |
| commit | 954f9ac43b87b44152b8c21163cefd466a87145e (patch) | |
| tree | 31c4197f975c66c96976948663e6ce844900b41a /tools/perf/util/util.c | |
| parent | 1b62ca7bf5775bed048032b7e779561e1fe66aa0 (diff) | |
| parent | 7fe0b14b725d6d09a1d9e1409bd465cb88b587f9 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
There's a Niagara 2 memcpy fix in this tree and I have
a Kconfig fix from Dave Jones which requires the sparc-next
changes which went upstream yesterday.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/util/util.c')
| -rw-r--r-- | tools/perf/util/util.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index d03599fbe78b..2055cf38041c 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 |