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-rw-r--r--tools/perf/util/session.c62
1 files changed, 39 insertions, 23 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index c422cd6..fa9d652 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -27,8 +27,10 @@ static int perf_session__open(struct perf_session *self, bool force)
self->fd = open(self->filename, O_RDONLY);
if (self->fd < 0) {
- pr_err("failed to open file: %s", self->filename);
- if (!strcmp(self->filename, "perf.data"))
+ int err = errno;
+
+ pr_err("failed to open %s: %s", self->filename, strerror(err));
+ if (err == ENOENT && !strcmp(self->filename, "perf.data"))
pr_err(" (try 'perf record' first)");
pr_err("\n");
return -errno;
@@ -77,6 +79,12 @@ int perf_session__create_kernel_maps(struct perf_session *self)
return ret;
}
+static void perf_session__destroy_kernel_maps(struct perf_session *self)
+{
+ machine__destroy_kernel_maps(&self->host_machine);
+ machines__destroy_guest_kernel_maps(&self->machines);
+}
+
struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe)
{
size_t len = filename ? strlen(filename) + 1 : 0;
@@ -94,8 +102,6 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
self->hists_tree = RB_ROOT;
self->last_match = NULL;
self->mmap_window = 32;
- self->cwd = NULL;
- self->cwdlen = 0;
self->machines = RB_ROOT;
self->repipe = repipe;
INIT_LIST_HEAD(&self->ordered_samples.samples_head);
@@ -124,16 +130,43 @@ out_delete:
return NULL;
}
+static void perf_session__delete_dead_threads(struct perf_session *self)
+{
+ struct thread *n, *t;
+
+ list_for_each_entry_safe(t, n, &self->dead_threads, node) {
+ list_del(&t->node);
+ thread__delete(t);
+ }
+}
+
+static void perf_session__delete_threads(struct perf_session *self)
+{
+ struct rb_node *nd = rb_first(&self->threads);
+
+ while (nd) {
+ struct thread *t = rb_entry(nd, struct thread, rb_node);
+
+ rb_erase(&t->rb_node, &self->threads);
+ nd = rb_next(nd);
+ thread__delete(t);
+ }
+}
+
void perf_session__delete(struct perf_session *self)
{
perf_header__exit(&self->header);
+ perf_session__destroy_kernel_maps(self);
+ perf_session__delete_dead_threads(self);
+ perf_session__delete_threads(self);
+ machine__exit(&self->host_machine);
close(self->fd);
- free(self->cwd);
free(self);
}
void perf_session__remove_thread(struct perf_session *self, struct thread *th)
{
+ self->last_match = NULL;
rb_erase(&th->rb_node, &self->threads);
/*
* We may have references to this thread, for instance in some hist_entry
@@ -830,23 +863,6 @@ int perf_session__process_events(struct perf_session *self,
if (perf_session__register_idle_thread(self) == NULL)
return -ENOMEM;
- if (!symbol_conf.full_paths) {
- char bf[PATH_MAX];
-
- if (getcwd(bf, sizeof(bf)) == NULL) {
- err = -errno;
-out_getcwd_err:
- pr_err("failed to get the current directory\n");
- goto out_err;
- }
- self->cwd = strdup(bf);
- if (self->cwd == NULL) {
- err = -ENOMEM;
- goto out_getcwd_err;
- }
- self->cwdlen = strlen(self->cwd);
- }
-
if (!self->fd_pipe)
err = __perf_session__process_events(self,
self->header.data_offset,
@@ -854,7 +870,7 @@ out_getcwd_err:
self->size, ops);
else
err = __perf_session__process_pipe_events(self, ops);
-out_err:
+
return err;
}
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