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Diffstat (limited to 'tools/perf/util/machine.c')
-rw-r--r--tools/perf/util/machine.c105
1 files changed, 73 insertions, 32 deletions
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 80b9b6a87990..639a2903065e 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -32,6 +32,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
machine->threads = RB_ROOT;
pthread_rwlock_init(&machine->threads_lock, NULL);
+ machine->nr_threads = 0;
INIT_LIST_HEAD(&machine->dead_threads);
machine->last_match = NULL;
@@ -430,6 +431,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
*/
thread__get(th);
machine->last_match = th;
+ ++machine->nr_threads;
}
return th;
@@ -681,11 +683,13 @@ size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp)
size_t machine__fprintf(struct machine *machine, FILE *fp)
{
- size_t ret = 0;
+ size_t ret;
struct rb_node *nd;
pthread_rwlock_rdlock(&machine->threads_lock);
+ ret = fprintf(fp, "Threads: %u\n", machine->nr_threads);
+
for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) {
struct thread *pos = rb_entry(nd, struct thread, rb_node);
@@ -908,11 +912,11 @@ int machines__create_kernel_maps(struct machines *machines, pid_t pid)
return machine__create_kernel_maps(machine);
}
-int machine__load_kallsyms(struct machine *machine, const char *filename,
- enum map_type type, symbol_filter_t filter)
+int __machine__load_kallsyms(struct machine *machine, const char *filename,
+ enum map_type type, bool no_kcore, symbol_filter_t filter)
{
struct map *map = machine__kernel_map(machine);
- int ret = dso__load_kallsyms(map->dso, filename, map, filter);
+ int ret = __dso__load_kallsyms(map->dso, filename, map, no_kcore, filter);
if (ret > 0) {
dso__set_loaded(map->dso, type);
@@ -927,6 +931,12 @@ int machine__load_kallsyms(struct machine *machine, const char *filename,
return ret;
}
+int machine__load_kallsyms(struct machine *machine, const char *filename,
+ enum map_type type, symbol_filter_t filter)
+{
+ return __machine__load_kallsyms(machine, filename, type, false, filter);
+}
+
int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
symbol_filter_t filter)
{
@@ -1413,6 +1423,7 @@ static void __machine__remove_thread(struct machine *machine, struct thread *th,
pthread_rwlock_wrlock(&machine->threads_lock);
rb_erase_init(&th->rb_node, &machine->threads);
RB_CLEAR_NODE(&th->rb_node);
+ --machine->nr_threads;
/*
* Move it first to the dead_threads list, then drop the reference,
* if this is the last reference, then the thread__delete destructor
@@ -1599,6 +1610,7 @@ struct mem_info *sample__resolve_mem(struct perf_sample *sample,
}
static int add_callchain_ip(struct thread *thread,
+ struct callchain_cursor *cursor,
struct symbol **parent,
struct addr_location *root_al,
u8 *cpumode,
@@ -1630,7 +1642,7 @@ static int add_callchain_ip(struct thread *thread,
* It seems the callchain is corrupted.
* Discard all.
*/
- callchain_cursor_reset(&callchain_cursor);
+ callchain_cursor_reset(cursor);
return 1;
}
return 0;
@@ -1640,7 +1652,7 @@ static int add_callchain_ip(struct thread *thread,
}
if (al.sym != NULL) {
- if (sort__has_parent && !*parent &&
+ if (perf_hpp_list.parent && !*parent &&
symbol__match_regex(al.sym, &parent_regex))
*parent = al.sym;
else if (have_ignore_callees && root_al &&
@@ -1648,13 +1660,13 @@ static int add_callchain_ip(struct thread *thread,
/* Treat this symbol as the root,
forgetting its callees. */
*root_al = al;
- callchain_cursor_reset(&callchain_cursor);
+ callchain_cursor_reset(cursor);
}
}
if (symbol_conf.hide_unresolved && al.sym == NULL)
return 0;
- return callchain_cursor_append(&callchain_cursor, al.addr, al.map, al.sym);
+ return callchain_cursor_append(cursor, al.addr, al.map, al.sym);
}
struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
@@ -1724,6 +1736,7 @@ static int remove_loops(struct branch_entry *l, int nr)
* negative error code on other errors.
*/
static int resolve_lbr_callchain_sample(struct thread *thread,
+ struct callchain_cursor *cursor,
struct perf_sample *sample,
struct symbol **parent,
struct addr_location *root_al,
@@ -1756,7 +1769,7 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
*/
int mix_chain_nr = i + 1 + lbr_nr + 1;
- if (mix_chain_nr > PERF_MAX_STACK_DEPTH + PERF_MAX_BRANCH_DEPTH) {
+ if (mix_chain_nr > (int)sysctl_perf_event_max_stack + PERF_MAX_BRANCH_DEPTH) {
pr_warning("corrupted callchain. skipping...\n");
return 0;
}
@@ -1778,7 +1791,7 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
ip = lbr_stack->entries[0].to;
}
- err = add_callchain_ip(thread, parent, root_al, &cpumode, ip);
+ err = add_callchain_ip(thread, cursor, parent, root_al, &cpumode, ip);
if (err)
return (err < 0) ? err : 0;
}
@@ -1789,6 +1802,7 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
}
static int thread__resolve_callchain_sample(struct thread *thread,
+ struct callchain_cursor *cursor,
struct perf_evsel *evsel,
struct perf_sample *sample,
struct symbol **parent,
@@ -1803,10 +1817,8 @@ static int thread__resolve_callchain_sample(struct thread *thread,
int skip_idx = -1;
int first_call = 0;
- callchain_cursor_reset(&callchain_cursor);
-
- if (has_branch_callstack(evsel)) {
- err = resolve_lbr_callchain_sample(thread, sample, parent,
+ if (perf_evsel__has_branch_callstack(evsel)) {
+ err = resolve_lbr_callchain_sample(thread, cursor, sample, parent,
root_al, max_stack);
if (err)
return (err < 0) ? err : 0;
@@ -1816,7 +1828,7 @@ static int thread__resolve_callchain_sample(struct thread *thread,
* Based on DWARF debug information, some architectures skip
* a callchain entry saved by the kernel.
*/
- if (chain->nr < PERF_MAX_STACK_DEPTH)
+ if (chain->nr < sysctl_perf_event_max_stack)
skip_idx = arch_skip_callchain_idx(thread, chain);
/*
@@ -1863,10 +1875,10 @@ static int thread__resolve_callchain_sample(struct thread *thread,
nr = remove_loops(be, nr);
for (i = 0; i < nr; i++) {
- err = add_callchain_ip(thread, parent, root_al,
+ err = add_callchain_ip(thread, cursor, parent, root_al,
NULL, be[i].to);
if (!err)
- err = add_callchain_ip(thread, parent, root_al,
+ err = add_callchain_ip(thread, cursor, parent, root_al,
NULL, be[i].from);
if (err == -EINVAL)
break;
@@ -1877,7 +1889,7 @@ static int thread__resolve_callchain_sample(struct thread *thread,
}
check_calls:
- if (chain->nr > PERF_MAX_STACK_DEPTH && (int)chain->nr > max_stack) {
+ if (chain->nr > sysctl_perf_event_max_stack && (int)chain->nr > max_stack) {
pr_warning("corrupted callchain. skipping...\n");
return 0;
}
@@ -1896,7 +1908,7 @@ check_calls:
#endif
ip = chain->ips[j];
- err = add_callchain_ip(thread, parent, root_al, &cpumode, ip);
+ err = add_callchain_ip(thread, cursor, parent, root_al, &cpumode, ip);
if (err)
return (err < 0) ? err : 0;
@@ -1915,19 +1927,12 @@ static int unwind_entry(struct unwind_entry *entry, void *arg)
entry->map, entry->sym);
}
-int thread__resolve_callchain(struct thread *thread,
- struct perf_evsel *evsel,
- struct perf_sample *sample,
- struct symbol **parent,
- struct addr_location *root_al,
- int max_stack)
+static int thread__resolve_callchain_unwind(struct thread *thread,
+ struct callchain_cursor *cursor,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample,
+ int max_stack)
{
- int ret = thread__resolve_callchain_sample(thread, evsel,
- sample, parent,
- root_al, max_stack);
- if (ret)
- return ret;
-
/* Can we do dwarf post unwind? */
if (!((evsel->attr.sample_type & PERF_SAMPLE_REGS_USER) &&
(evsel->attr.sample_type & PERF_SAMPLE_STACK_USER)))
@@ -1938,9 +1943,45 @@ int thread__resolve_callchain(struct thread *thread,
(!sample->user_stack.size))
return 0;
- return unwind__get_entries(unwind_entry, &callchain_cursor,
+ return unwind__get_entries(unwind_entry, cursor,
thread, sample, max_stack);
+}
+
+int thread__resolve_callchain(struct thread *thread,
+ struct callchain_cursor *cursor,
+ struct perf_evsel *evsel,
+ struct perf_sample *sample,
+ struct symbol **parent,
+ struct addr_location *root_al,
+ int max_stack)
+{
+ int ret = 0;
+
+ callchain_cursor_reset(&callchain_cursor);
+ if (callchain_param.order == ORDER_CALLEE) {
+ ret = thread__resolve_callchain_sample(thread, cursor,
+ evsel, sample,
+ parent, root_al,
+ max_stack);
+ if (ret)
+ return ret;
+ ret = thread__resolve_callchain_unwind(thread, cursor,
+ evsel, sample,
+ max_stack);
+ } else {
+ ret = thread__resolve_callchain_unwind(thread, cursor,
+ evsel, sample,
+ max_stack);
+ if (ret)
+ return ret;
+ ret = thread__resolve_callchain_sample(thread, cursor,
+ evsel, sample,
+ parent, root_al,
+ max_stack);
+ }
+
+ return ret;
}
int machine__for_each_thread(struct machine *machine,