diff options
Diffstat (limited to 'tools/perf/util/thread.c')
| -rw-r--r-- | tools/perf/util/thread.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c index dfd00c6da..45fcb715a 100644 --- a/tools/perf/util/thread.c +++ b/tools/perf/util/thread.c @@ -10,6 +10,8 @@ #include "comm.h" #include "unwind.h" +#include <api/fs/fs.h> + int thread__init_map_groups(struct thread *thread, struct machine *machine) { struct thread *leader; @@ -153,6 +155,23 @@ int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp, return 0; } +int thread__set_comm_from_proc(struct thread *thread) +{ + char path[64]; + char *comm = NULL; + size_t sz; + int err = -1; + + if (!(snprintf(path, sizeof(path), "%d/task/%d/comm", + thread->pid_, thread->tid) >= (int)sizeof(path)) && + procfs__read_str(path, &comm, &sz) == 0) { + comm[sz - 1] = '\0'; + err = thread__set_comm(thread, comm, 0); + } + + return err; +} + const char *thread__comm_str(const struct thread *thread) { const struct comm *comm = thread__comm(thread); @@ -233,7 +252,7 @@ void thread__find_cpumode_addr_location(struct thread *thread, struct addr_location *al) { size_t i; - const u8 const cpumodes[] = { + const u8 cpumodes[] = { PERF_RECORD_MISC_USER, PERF_RECORD_MISC_KERNEL, PERF_RECORD_MISC_GUEST_USER, |