diff options
| author |   Sean Paul <seanpaul@chromium.org> | 2017-08-14 13:14:36 -0400 |
|---|---|---|
| committer | Sean Paul <seanpaul@chromium.org> | 2017-08-14 13:14:36 -0400 |
| commit | 1724c7c0c9494dcbdd7f630f29e1e8427cb231d1 (patch) | |
| tree | d7c7ad032289cdf0633feee4bd6ec5800b666ca7 /tools/include/linux/stacktrace.h | |
| parent | drm/atomic: Handle -EDEADLK with out-fences correctly (diff) | |
| parent | Linux 4.13-rc5 (diff) | |
Merge origin/master into drm-misc-fixes
Backmerge 4.13-rc5 into drm-misc-fixes, it was getting a
little stale.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Diffstat (limited to 'tools/include/linux/stacktrace.h')
| -rw-r--r-- | tools/include/linux/stacktrace.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tools/include/linux/stacktrace.h b/tools/include/linux/stacktrace.h new file mode 100644 index 000000000000..39aecc6b19d1 --- /dev/null +++ b/tools/include/linux/stacktrace.h @@ -0,0 +1,32 @@ +#ifndef _LIBLOCKDEP_LINUX_STACKTRACE_H_ +#define _LIBLOCKDEP_LINUX_STACKTRACE_H_ + +#include <execinfo.h> + +struct stack_trace { + unsigned int nr_entries, max_entries; + unsigned long *entries; + int skip; +}; + +static inline void print_stack_trace(struct stack_trace *trace, int spaces) +{ + backtrace_symbols_fd((void **)trace->entries, trace->nr_entries, 1); +} + +#define save_stack_trace(trace) \ + ((trace)->nr_entries = \ + backtrace((void **)(trace)->entries, (trace)->max_entries)) + +static inline int dump_stack(void) +{ + void *array[64]; + size_t size; + + size = backtrace(array, 64); + backtrace_symbols_fd(array, size, 1); + + return 0; +} + +#endif |