diff options
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/bpf_lock_contention.c | 9 | ||||
| -rw-r--r-- | tools/perf/util/lock-contention.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/util/bpf_lock_contention.c b/tools/perf/util/bpf_lock_contention.c index c591a66733ef..6545bee65347 100644 --- a/tools/perf/util/bpf_lock_contention.c +++ b/tools/perf/util/bpf_lock_contention.c @@ -8,6 +8,7 @@ #include "util/thread_map.h" #include "util/lock-contention.h" #include <linux/zalloc.h> +#include <linux/string.h> #include <bpf/bpf.h> #include "bpf_skel/lock_contention.skel.h" @@ -171,6 +172,14 @@ int lock_contention_read(struct lock_contention *con) return -1; } + if (verbose) { + st->callstack = memdup(stack_trace, sizeof(stack_trace)); + if (st->callstack == NULL) { + free(st); + return -1; + } + } + hlist_add_head(&st->hash_entry, con->result); prev_key = key; } diff --git a/tools/perf/util/lock-contention.h b/tools/perf/util/lock-contention.h index 2146efc33396..bdb6e2a61e5b 100644 --- a/tools/perf/util/lock-contention.h +++ b/tools/perf/util/lock-contention.h @@ -11,6 +11,7 @@ struct lock_stat { u64 addr; /* address of lockdep_map, used as ID */ char *name; /* for strcpy(), we cannot use const */ + u64 *callstack; unsigned int nr_acquire; unsigned int nr_acquired; |