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| author | Linus Walleij <linus.walleij@linaro.org> | 2015-01-30 10:38:15 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-01-30 10:38:15 +0100 |
| commit | b6afdbe8e841e20297a38e2af0a053d8eb26c19b (patch) | |
| tree | 4a336799dcd7d77a7d1f1e9b46b9e48551053524 /tools/perf/ui/tui/setup.c | |
| parent | 8090f7917b5d7cc2390afe33cb12f819173ef9c8 (diff) | |
| parent | 26bc420b59a38e4e6685a73345a0def461136dce (diff) | |
| download | linux-b6afdbe8e841e20297a38e2af0a053d8eb26c19b.tar.gz | |
Merge tag 'v3.19-rc6' into devel
Linux 3.19-rc6
Diffstat (limited to 'tools/perf/ui/tui/setup.c')
| -rw-r--r-- | tools/perf/ui/tui/setup.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c index 2f612562978c..3c38f25b1695 100644 --- a/tools/perf/ui/tui/setup.c +++ b/tools/perf/ui/tui/setup.c @@ -1,5 +1,8 @@ #include <signal.h> #include <stdbool.h> +#ifdef HAVE_BACKTRACE_SUPPORT +#include <execinfo.h> +#endif #include "../../util/cache.h" #include "../../util/debug.h" @@ -88,6 +91,25 @@ int ui__getch(int delay_secs) return SLkp_getkey(); } +#ifdef HAVE_BACKTRACE_SUPPORT +static void ui__signal_backtrace(int sig) +{ + void *stackdump[32]; + size_t size; + + ui__exit(false); + psignal(sig, "perf"); + + printf("-------- backtrace --------\n"); + size = backtrace(stackdump, ARRAY_SIZE(stackdump)); + backtrace_symbols_fd(stackdump, size, STDOUT_FILENO); + + exit(0); +} +#else +# define ui__signal_backtrace ui__signal +#endif + static void ui__signal(int sig) { ui__exit(false); @@ -122,8 +144,8 @@ int ui__init(void) ui_browser__init(); tui_progress__init(); - signal(SIGSEGV, ui__signal); - signal(SIGFPE, ui__signal); + signal(SIGSEGV, ui__signal_backtrace); + signal(SIGFPE, ui__signal_backtrace); signal(SIGINT, ui__signal); signal(SIGQUIT, ui__signal); signal(SIGTERM, ui__signal); |