summaryrefslogtreecommitdiffstats
path: root/tools/perf/util/session.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/perf/util/session.c')
-rw-r--r--tools/perf/util/session.c84
1 files changed, 77 insertions, 7 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 707ce1c..ce3a6c8 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -4,6 +4,7 @@
#include <sys/types.h>
#include "session.h"
+#include "sort.h"
#include "util.h"
static int perf_session__open(struct perf_session *self, bool force)
@@ -50,31 +51,100 @@ out_close:
struct perf_session *perf_session__new(const char *filename, int mode, bool force)
{
- size_t len = strlen(filename) + 1;
+ size_t len = filename ? strlen(filename) + 1 : 0;
struct perf_session *self = zalloc(sizeof(*self) + len);
if (self == NULL)
goto out;
if (perf_header__init(&self->header) < 0)
- goto out_delete;
+ goto out_free;
memcpy(self->filename, filename, len);
+ self->threads = RB_ROOT;
+ self->last_match = NULL;
+ self->mmap_window = 32;
+ self->cwd = NULL;
+ self->cwdlen = 0;
+ map_groups__init(&self->kmaps);
+
+ if (perf_session__create_kernel_maps(self) < 0)
+ goto out_delete;
- if (mode == O_RDONLY && perf_session__open(self, force) < 0) {
- perf_session__delete(self);
- self = NULL;
- }
+ if (mode == O_RDONLY && perf_session__open(self, force) < 0)
+ goto out_delete;
out:
return self;
-out_delete:
+out_free:
free(self);
return NULL;
+out_delete:
+ perf_session__delete(self);
+ return NULL;
}
void perf_session__delete(struct perf_session *self)
{
perf_header__exit(&self->header);
close(self->fd);
+ free(self->cwd);
free(self);
}
+
+static bool symbol__match_parent_regex(struct symbol *sym)
+{
+ if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0))
+ return 1;
+
+ return 0;
+}
+
+struct symbol **perf_session__resolve_callchain(struct perf_session *self,
+ struct thread *thread,
+ struct ip_callchain *chain,
+ struct symbol **parent)
+{
+ u8 cpumode = PERF_RECORD_MISC_USER;
+ struct symbol **syms = NULL;
+ unsigned int i;
+
+ if (symbol_conf.use_callchain) {
+ syms = calloc(chain->nr, sizeof(*syms));
+ if (!syms) {
+ fprintf(stderr, "Can't allocate memory for symbols\n");
+ exit(-1);
+ }
+ }
+
+ for (i = 0; i < chain->nr; i++) {
+ u64 ip = chain->ips[i];
+ struct addr_location al;
+
+ if (ip >= PERF_CONTEXT_MAX) {
+ switch (ip) {
+ case PERF_CONTEXT_HV:
+ cpumode = PERF_RECORD_MISC_HYPERVISOR; break;
+ case PERF_CONTEXT_KERNEL:
+ cpumode = PERF_RECORD_MISC_KERNEL; break;
+ case PERF_CONTEXT_USER:
+ cpumode = PERF_RECORD_MISC_USER; break;
+ default:
+ break;
+ }
+ continue;
+ }
+
+ thread__find_addr_location(thread, self, cpumode,
+ MAP__FUNCTION, ip, &al, NULL);
+ if (al.sym != NULL) {
+ if (sort__has_parent && !*parent &&
+ symbol__match_parent_regex(al.sym))
+ *parent = al.sym;
+ if (!symbol_conf.use_callchain)
+ break;
+ syms[i] = al.sym;
+ }
+ }
+
+ return syms;
+}
OpenPOWER on IntegriCloud