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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/tools/perf/util/build-id.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/tools/perf/util/build-id.c')
-rw-r--r--kernel/tools/perf/util/build-id.c105
1 files changed, 57 insertions, 48 deletions
diff --git a/kernel/tools/perf/util/build-id.c b/kernel/tools/perf/util/build-id.c
index 61867dff5..6a7e273a5 100644
--- a/kernel/tools/perf/util/build-id.c
+++ b/kernel/tools/perf/util/build-id.c
@@ -43,6 +43,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
if (al.map != NULL)
al.map->dso->hit = 1;
+ thread__put(thread);
return 0;
}
@@ -59,8 +60,10 @@ static int perf_event__exit_del_thread(struct perf_tool *tool __maybe_unused,
dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid,
event->fork.ppid, event->fork.ptid);
- if (thread)
+ if (thread) {
machine__remove_thread(machine, thread);
+ thread__put(thread);
+ }
return 0;
}
@@ -73,6 +76,7 @@ struct perf_tool build_id__mark_dso_hit_ops = {
.exit = perf_event__exit_del_thread,
.attr = perf_event__process_attr,
.build_id = perf_event__process_build_id,
+ .ordered_events = true,
};
int build_id__sprintf(const u8 *build_id, int len, char *bf)
@@ -87,7 +91,39 @@ int build_id__sprintf(const u8 *build_id, int len, char *bf)
bid += 2;
}
- return raw - build_id;
+ return (bid - bf) + 1;
+}
+
+int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id)
+{
+ char notes[PATH_MAX];
+ u8 build_id[BUILD_ID_SIZE];
+ int ret;
+
+ if (!root_dir)
+ root_dir = "";
+
+ scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);
+
+ ret = sysfs__read_build_id(notes, build_id, sizeof(build_id));
+ if (ret < 0)
+ return ret;
+
+ return build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
+}
+
+int filename__sprintf_build_id(const char *pathname, char *sbuild_id)
+{
+ u8 build_id[BUILD_ID_SIZE];
+ int ret;
+
+ ret = filename__read_build_id(pathname, build_id, sizeof(build_id));
+ if (ret < 0)
+ return ret;
+ else if (ret != sizeof(build_id))
+ return -EINVAL;
+
+ return build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
}
/* asnprintf consolidates asprintf and snprintf */
@@ -121,7 +157,7 @@ static char *build_id__filename(const char *sbuild_id, char *bf, size_t size)
char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size)
{
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
+ char build_id_hex[SBUILD_ID_SIZE];
if (!dso->has_build_id)
return NULL;
@@ -159,15 +195,20 @@ static int write_buildid(const char *name, size_t name_len, u8 *build_id,
return write_padded(fd, name, name_len + 1, len);
}
-static int __dsos__write_buildid_table(struct list_head *head,
- struct machine *machine,
- pid_t pid, u16 misc, int fd)
+static int machine__write_buildid_table(struct machine *machine, int fd)
{
+ int err = 0;
char nm[PATH_MAX];
struct dso *pos;
+ u16 kmisc = PERF_RECORD_MISC_KERNEL,
+ umisc = PERF_RECORD_MISC_USER;
+
+ if (!machine__is_host(machine)) {
+ kmisc = PERF_RECORD_MISC_GUEST_KERNEL;
+ umisc = PERF_RECORD_MISC_GUEST_USER;
+ }
- dsos__for_each_with_build_id(pos, head) {
- int err;
+ dsos__for_each_with_build_id(pos, &machine->dsos.head) {
const char *name;
size_t name_len;
@@ -186,32 +227,12 @@ static int __dsos__write_buildid_table(struct list_head *head,
name_len = pos->long_name_len + 1;
}
- err = write_buildid(name, name_len, pos->build_id,
- pid, misc, fd);
+ err = write_buildid(name, name_len, pos->build_id, machine->pid,
+ pos->kernel ? kmisc : umisc, fd);
if (err)
- return err;
- }
-
- return 0;
-}
-
-static int machine__write_buildid_table(struct machine *machine, int fd)
-{
- int err;
- u16 kmisc = PERF_RECORD_MISC_KERNEL,
- umisc = PERF_RECORD_MISC_USER;
-
- if (!machine__is_host(machine)) {
- kmisc = PERF_RECORD_MISC_GUEST_KERNEL;
- umisc = PERF_RECORD_MISC_GUEST_USER;
+ break;
}
- err = __dsos__write_buildid_table(&machine->kernel_dsos.head, machine,
- machine->pid, kmisc, fd);
- if (err == 0)
- err = __dsos__write_buildid_table(&machine->user_dsos.head,
- machine, machine->pid, umisc,
- fd);
return err;
}
@@ -244,13 +265,7 @@ static int __dsos__hit_all(struct list_head *head)
static int machine__hit_all_dsos(struct machine *machine)
{
- int err;
-
- err = __dsos__hit_all(&machine->kernel_dsos.head);
- if (err)
- return err;
-
- return __dsos__hit_all(&machine->user_dsos.head);
+ return __dsos__hit_all(&machine->dsos.head);
}
int dsos__hit_all(struct perf_session *session)
@@ -309,7 +324,7 @@ int build_id_cache__list_build_ids(const char *pathname,
struct dirent *d;
int ret = 0;
- list = strlist__new(true, NULL);
+ list = strlist__new(NULL, NULL);
dir_name = build_id_cache__dirname_from_path(pathname, false, false);
if (!list || !dir_name) {
ret = -ENOMEM;
@@ -402,7 +417,7 @@ static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
const char *name, bool is_kallsyms,
bool is_vdso)
{
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
build_id__sprintf(build_id, build_id_size, sbuild_id);
@@ -490,9 +505,7 @@ static int __dsos__cache_build_ids(struct list_head *head,
static int machine__cache_build_ids(struct machine *machine)
{
- int ret = __dsos__cache_build_ids(&machine->kernel_dsos.head, machine);
- ret |= __dsos__cache_build_ids(&machine->user_dsos.head, machine);
- return ret;
+ return __dsos__cache_build_ids(&machine->dsos.head, machine);
}
int perf_session__cache_build_ids(struct perf_session *session)
@@ -517,11 +530,7 @@ int perf_session__cache_build_ids(struct perf_session *session)
static bool machine__read_build_ids(struct machine *machine, bool with_hits)
{
- bool ret;
-
- ret = __dsos__read_build_ids(&machine->kernel_dsos.head, with_hits);
- ret |= __dsos__read_build_ids(&machine->user_dsos.head, with_hits);
- return ret;
+ return __dsos__read_build_ids(&machine->dsos.head, with_hits);
}
bool perf_session__read_build_ids(struct perf_session *session, bool with_hits)