mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 12:41:55 +00:00
4dfced359f
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>
143 lines
2.9 KiB
C
143 lines
2.9 KiB
C
#include "../perf.h"
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "session.h"
|
|
#include "thread.h"
|
|
#include "util.h"
|
|
#include "debug.h"
|
|
#include "comm.h"
|
|
|
|
struct thread *thread__new(pid_t pid, pid_t tid)
|
|
{
|
|
char *comm_str;
|
|
struct comm *comm;
|
|
struct thread *thread = zalloc(sizeof(*thread));
|
|
|
|
if (thread != NULL) {
|
|
map_groups__init(&thread->mg);
|
|
thread->pid_ = pid;
|
|
thread->tid = tid;
|
|
thread->ppid = -1;
|
|
INIT_LIST_HEAD(&thread->comm_list);
|
|
|
|
comm_str = malloc(32);
|
|
if (!comm_str)
|
|
goto err_thread;
|
|
|
|
snprintf(comm_str, 32, ":%d", tid);
|
|
comm = comm__new(comm_str, 0);
|
|
free(comm_str);
|
|
if (!comm)
|
|
goto err_thread;
|
|
|
|
list_add(&comm->list, &thread->comm_list);
|
|
}
|
|
|
|
return thread;
|
|
|
|
err_thread:
|
|
free(thread);
|
|
return NULL;
|
|
}
|
|
|
|
void thread__delete(struct thread *thread)
|
|
{
|
|
struct comm *comm, *tmp;
|
|
|
|
map_groups__exit(&thread->mg);
|
|
list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) {
|
|
list_del(&comm->list);
|
|
comm__free(comm);
|
|
}
|
|
|
|
free(thread);
|
|
}
|
|
|
|
struct comm *thread__comm(const struct thread *thread)
|
|
{
|
|
if (list_empty(&thread->comm_list))
|
|
return NULL;
|
|
|
|
return list_first_entry(&thread->comm_list, struct comm, list);
|
|
}
|
|
|
|
/* CHECKME: time should always be 0 if event aren't ordered */
|
|
int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
|
|
{
|
|
struct comm *new, *curr = thread__comm(thread);
|
|
|
|
/* Override latest entry if it had no specific time coverage */
|
|
if (!curr->start) {
|
|
comm__override(curr, str, timestamp);
|
|
return 0;
|
|
}
|
|
|
|
new = comm__new(str, timestamp);
|
|
if (!new)
|
|
return -ENOMEM;
|
|
|
|
list_add(&new->list, &thread->comm_list);
|
|
thread->comm_set = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
const char *thread__comm_str(const struct thread *thread)
|
|
{
|
|
const struct comm *comm = thread__comm(thread);
|
|
|
|
if (!comm)
|
|
return NULL;
|
|
|
|
return comm__str(comm);
|
|
}
|
|
|
|
/* CHECKME: it should probably better return the max comm len from its comm list */
|
|
int thread__comm_len(struct thread *thread)
|
|
{
|
|
if (!thread->comm_len) {
|
|
const char *comm = thread__comm_str(thread);
|
|
if (!comm)
|
|
return 0;
|
|
thread->comm_len = strlen(comm);
|
|
}
|
|
|
|
return thread->comm_len;
|
|
}
|
|
|
|
size_t thread__fprintf(struct thread *thread, FILE *fp)
|
|
{
|
|
return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) +
|
|
map_groups__fprintf(&thread->mg, verbose, fp);
|
|
}
|
|
|
|
void thread__insert_map(struct thread *thread, struct map *map)
|
|
{
|
|
map_groups__fixup_overlappings(&thread->mg, map, verbose, stderr);
|
|
map_groups__insert(&thread->mg, map);
|
|
}
|
|
|
|
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp)
|
|
{
|
|
int i, err;
|
|
|
|
if (parent->comm_set) {
|
|
const char *comm = thread__comm_str(parent);
|
|
if (!comm)
|
|
return -ENOMEM;
|
|
err = thread__set_comm(thread, comm, timestamp);
|
|
if (!err)
|
|
return err;
|
|
thread->comm_set = true;
|
|
}
|
|
|
|
for (i = 0; i < MAP__NR_TYPES; ++i)
|
|
if (map_groups__clone(&thread->mg, &parent->mg, i) < 0)
|
|
return -ENOMEM;
|
|
|
|
thread->ppid = parent->tid;
|
|
|
|
return 0;
|
|
}
|