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perf tools: Get current comm instead of last one

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At insert time, a hist entry should reference comm at the time otherwise
it'll get the last comm anyway.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-n6pykiiymtgmcjs834go2t8x@git.kernel.org
[ Fixed up const pointer issues ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2013-09-13 16:28:57 +09:00 committed by Arnaldo Carvalho de Melo
parent fedd63d3cd
commit 4dfced359f
7 changed files with 30 additions and 12 deletions
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15
tools/perf/util/comm.c
View File

@ -94,6 +94,21 @@ struct comm *comm__new(const char *str, u64 timestamp)
return comm;
}
void comm__override(struct comm *comm, const char *str, u64 timestamp)
{
struct comm_str *old = comm->comm_str;
comm->comm_str = comm_str__findnew(str, &comm_str_root);
if (!comm->comm_str) {
comm->comm_str = old;
return;
}
comm->start = timestamp;
comm_str__get(comm->comm_str);
comm_str__put(old);
}
void comm__free(struct comm *comm)
{
comm_str__put(comm->comm_str);

1
tools/perf/util/comm.h
View File

@ -16,5 +16,6 @@ struct comm {
void comm__free(struct comm *comm);
struct comm *comm__new(const char *str, u64 timestamp);
const char *comm__str(const struct comm *comm);
void comm__override(struct comm *comm, const char *str, u64 timestamp);
#endif /* __PERF_COMM_H */

3
tools/perf/util/hist.c
View File

@ -416,6 +416,7 @@ struct hist_entry *__hists__add_mem_entry(struct hists *hists,
{
struct hist_entry entry = {
.thread = al->thread,
.comm = thread__comm(al->thread),
.ms = {
.map = al->map,
.sym = al->sym,
@ -446,6 +447,7 @@ struct hist_entry *__hists__add_branch_entry(struct hists *hists,
{
struct hist_entry entry = {
.thread = al->thread,
.comm = thread__comm(al->thread),
.ms = {
.map = bi->to.map,
.sym = bi->to.sym,
@ -475,6 +477,7 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
{
struct hist_entry entry = {
.thread = al->thread,
.comm = thread__comm(al->thread),
.ms = {
.map = al->map,
.sym = al->sym,

14
tools/perf/util/sort.c
View File

@ -1,5 +1,6 @@
#include "sort.h"
#include "hist.h"
#include "comm.h"
#include "symbol.h"
regex_t parent_regex;
@ -81,25 +82,20 @@ static int64_t
sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
{
/* Compare the addr that should be unique among comm */
return thread__comm_str(right->thread) - thread__comm_str(left->thread);
return comm__str(right->comm) - comm__str(left->comm);
}
static int64_t
sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
{
const char *comm_l = thread__comm_str(left->thread);
const char *comm_r = thread__comm_str(right->thread);
if (!comm_l || !comm_r)
return cmp_null(comm_l, comm_r);
return strcmp(comm_l, comm_r);
/* Compare the addr that should be unique among comm */
return comm__str(right->comm) - comm__str(left->comm);
}
static int hist_entry__comm_snprintf(struct hist_entry *he, char *bf,
size_t size, unsigned int width)
{
return repsep_snprintf(bf, size, "%*s", width, thread__comm_str(he->thread));
return repsep_snprintf(bf, size, "%*s", width, comm__str(he->comm));
}
struct sort_entry sort_comm = {

1
tools/perf/util/sort.h
View File

@ -84,6 +84,7 @@ struct hist_entry {
struct he_stat stat;
struct map_symbol ms;
struct thread *thread;
struct comm *comm;
u64 ip;
u64 transaction;
s32 cpu;

6
tools/perf/util/thread.c
View File

@ -54,7 +54,7 @@ void thread__delete(struct thread *thread)
free(thread);
}
static struct comm *thread__comm(const struct thread *thread)
struct comm *thread__comm(const struct thread *thread)
{
if (list_empty(&thread->comm_list))
return NULL;
@ -69,8 +69,8 @@ int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
/* Override latest entry if it had no specific time coverage */
if (!curr->start) {
list_del(&curr->list);
comm__free(curr);
comm__override(curr, str, timestamp);
return 0;
}
new = comm__new(str, timestamp);

2
tools/perf/util/thread.h
View File

@ -26,6 +26,7 @@ struct thread {
};
struct machine;
struct comm;
struct thread *thread__new(pid_t pid, pid_t tid);
void thread__delete(struct thread *self);
@ -36,6 +37,7 @@ static inline void thread__exited(struct thread *thread)
int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp);
int thread__comm_len(struct thread *self);
struct comm *thread__comm(const struct thread *thread);
const char *thread__comm_str(const struct thread *thread);
void thread__insert_map(struct thread *self, struct map *map);
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);