* [PATCH 01/17] tools lib traceevent: Modify header to work in C++ programs
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 02/17] perf session: flush_sample_queue needs to handle errors from handlers Arnaldo Carvalho de Melo
` (15 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Steven Rostedt, Frederic Weisbecker, Ingo Molnar,
Namhyung Kim, Peter Zijlstra, Arnaldo Carvalho de Melo
From: Steven Rostedt <rostedt@goodmis.org>
Replace keyword "private" to "priv" in event-parse.h to allow it to be
used in C++ programs.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1345735321.5069.62.camel@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/lib/traceevent/event-parse.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 527df03..863a0bb 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -49,7 +49,7 @@ struct pevent_record {
int cpu;
int ref_count;
int locked; /* Do not free, even if ref_count is zero */
- void *private;
+ void *priv;
#if DEBUG_RECORD
struct pevent_record *prev;
struct pevent_record *next;
@@ -106,7 +106,7 @@ struct plugin_option {
char *plugin_alias;
char *description;
char *value;
- void *private;
+ void *priv;
int set;
};
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 02/17] perf session: flush_sample_queue needs to handle errors from handlers
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 01/17] tools lib traceevent: Modify header to work in C++ programs Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 03/17] perf tool: handle errors in synthesized event functions Arnaldo Carvalho de Melo
` (14 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Allows errors to propogate through event processing code and back to
commands.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/session.c | 24 +++++++++++++++---------
1 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index f7bb7ae..9453758 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -692,7 +692,7 @@ static int perf_session_deliver_event(struct perf_session *session,
struct perf_tool *tool,
u64 file_offset);
-static void flush_sample_queue(struct perf_session *s,
+static int flush_sample_queue(struct perf_session *s,
struct perf_tool *tool)
{
struct ordered_samples *os = &s->ordered_samples;
@@ -705,7 +705,7 @@ static void flush_sample_queue(struct perf_session *s,
int ret;
if (!tool->ordered_samples || !limit)
- return;
+ return 0;
list_for_each_entry_safe(iter, tmp, head, list) {
if (iter->timestamp > limit)
@@ -715,9 +715,12 @@ static void flush_sample_queue(struct perf_session *s,
s->header.needs_swap);
if (ret)
pr_err("Can't parse sample, err = %d\n", ret);
- else
- perf_session_deliver_event(s, iter->event, &sample, tool,
- iter->file_offset);
+ else {
+ ret = perf_session_deliver_event(s, iter->event, &sample, tool,
+ iter->file_offset);
+ if (ret)
+ return ret;
+ }
os->last_flush = iter->timestamp;
list_del(&iter->list);
@@ -737,6 +740,8 @@ static void flush_sample_queue(struct perf_session *s,
}
os->nr_samples = 0;
+
+ return 0;
}
/*
@@ -782,10 +787,11 @@ static int process_finished_round(struct perf_tool *tool,
union perf_event *event __used,
struct perf_session *session)
{
- flush_sample_queue(session, tool);
- session->ordered_samples.next_flush = session->ordered_samples.max_timestamp;
+ int ret = flush_sample_queue(session, tool);
+ if (!ret)
+ session->ordered_samples.next_flush = session->ordered_samples.max_timestamp;
- return 0;
+ return ret;
}
/* The queue is ordered by time */
@@ -1443,7 +1449,7 @@ more:
err = 0;
/* do the final flush for ordered samples */
session->ordered_samples.next_flush = ULLONG_MAX;
- flush_sample_queue(session, tool);
+ err = flush_sample_queue(session, tool);
out_err:
perf_session__warn_about_errors(session, tool);
perf_session_free_sample_buffers(session);
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 03/17] perf tool: handle errors in synthesized event functions
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 01/17] tools lib traceevent: Modify header to work in C++ programs Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 02/17] perf session: flush_sample_queue needs to handle errors from handlers Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 04/17] perf lock: Remove use of die and handle errors Arnaldo Carvalho de Melo
` (13 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Handle error from process callback and propagate back to caller.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-3-git-send-email-dsahern@gmail.com
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/event.c | 35 ++++++++++++++++++++++++++---------
1 files changed, 26 insertions(+), 9 deletions(-)
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 3a0f1a5..84ff6f1 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -120,7 +120,9 @@ static pid_t perf_event__synthesize_comm(struct perf_tool *tool,
if (!full) {
event->comm.tid = pid;
- process(tool, event, &synth_sample, machine);
+ if (process(tool, event, &synth_sample, machine) != 0)
+ return -1;
+
goto out;
}
@@ -151,7 +153,10 @@ static pid_t perf_event__synthesize_comm(struct perf_tool *tool,
event->comm.tid = pid;
- process(tool, event, &synth_sample, machine);
+ if (process(tool, event, &synth_sample, machine) != 0) {
+ tgid = -1;
+ break;
+ }
}
closedir(tasks);
@@ -167,6 +172,7 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
{
char filename[PATH_MAX];
FILE *fp;
+ int rc = 0;
snprintf(filename, sizeof(filename), "/proc/%d/maps", pid);
@@ -231,18 +237,22 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
event->mmap.pid = tgid;
event->mmap.tid = pid;
- process(tool, event, &synth_sample, machine);
+ if (process(tool, event, &synth_sample, machine) != 0) {
+ rc = -1;
+ break;
+ }
}
}
fclose(fp);
- return 0;
+ return rc;
}
int perf_event__synthesize_modules(struct perf_tool *tool,
perf_event__handler_t process,
struct machine *machine)
{
+ int rc = 0;
struct rb_node *nd;
struct map_groups *kmaps = &machine->kmaps;
union perf_event *event = zalloc((sizeof(event->mmap) +
@@ -284,11 +294,14 @@ int perf_event__synthesize_modules(struct perf_tool *tool,
memcpy(event->mmap.filename, pos->dso->long_name,
pos->dso->long_name_len + 1);
- process(tool, event, &synth_sample, machine);
+ if (process(tool, event, &synth_sample, machine) != 0) {
+ rc = -1;
+ break;
+ }
}
free(event);
- return 0;
+ return rc;
}
static int __event__synthesize_thread(union perf_event *comm_event,
@@ -392,12 +405,16 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
if (*end) /* only interested in proper numerical dirents */
continue;
- __event__synthesize_thread(comm_event, mmap_event, pid, 1,
- process, tool, machine);
+ if (__event__synthesize_thread(comm_event, mmap_event, pid, 1,
+ process, tool, machine) != 0) {
+ err = -1;
+ goto out_closedir;
+ }
}
- closedir(proc);
err = 0;
+out_closedir:
+ closedir(proc);
out_free_mmap:
free(mmap_event);
out_free_comm:
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 04/17] perf lock: Remove use of die and handle errors
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (2 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 03/17] perf tool: handle errors in synthesized event functions Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 05/17] perf stat: Remove use of die/exit " Arnaldo Carvalho de Melo
` (12 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Allows perf to clean up properly on exit.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-lock.c | 181 +++++++++++++++++++++++++++++++--------------
1 files changed, 124 insertions(+), 57 deletions(-)
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 585aae2..75153c8 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -161,8 +161,10 @@ static struct thread_stat *thread_stat_findnew_after_first(u32 tid)
return st;
st = zalloc(sizeof(struct thread_stat));
- if (!st)
- die("memory allocation failed\n");
+ if (!st) {
+ pr_err("memory allocation failed\n");
+ return NULL;
+ }
st->tid = tid;
INIT_LIST_HEAD(&st->seq_list);
@@ -181,8 +183,10 @@ static struct thread_stat *thread_stat_findnew_first(u32 tid)
struct thread_stat *st;
st = zalloc(sizeof(struct thread_stat));
- if (!st)
- die("memory allocation failed\n");
+ if (!st) {
+ pr_err("memory allocation failed\n");
+ return NULL;
+ }
st->tid = tid;
INIT_LIST_HEAD(&st->seq_list);
@@ -248,18 +252,20 @@ struct lock_key keys[] = {
{ NULL, NULL }
};
-static void select_key(void)
+static int select_key(void)
{
int i;
for (i = 0; keys[i].name; i++) {
if (!strcmp(keys[i].name, sort_key)) {
compare = keys[i].key;
- return;
+ return 0;
}
}
- die("Unknown compare key:%s\n", sort_key);
+ pr_err("Unknown compare key: %s\n", sort_key);
+
+ return -1;
}
static void insert_to_result(struct lock_stat *st,
@@ -324,7 +330,8 @@ static struct lock_stat *lock_stat_findnew(void *addr, const char *name)
return new;
alloc_failed:
- die("memory allocation failed\n");
+ pr_err("memory allocation failed\n");
+ return NULL;
}
static const char *input_name;
@@ -356,16 +363,16 @@ struct trace_release_event {
};
struct trace_lock_handler {
- void (*acquire_event)(struct trace_acquire_event *,
+ int (*acquire_event)(struct trace_acquire_event *,
const struct perf_sample *sample);
- void (*acquired_event)(struct trace_acquired_event *,
+ int (*acquired_event)(struct trace_acquired_event *,
const struct perf_sample *sample);
- void (*contended_event)(struct trace_contended_event *,
+ int (*contended_event)(struct trace_contended_event *,
const struct perf_sample *sample);
- void (*release_event)(struct trace_release_event *,
+ int (*release_event)(struct trace_release_event *,
const struct perf_sample *sample);
};
@@ -379,8 +386,10 @@ static struct lock_seq_stat *get_seq(struct thread_stat *ts, void *addr)
}
seq = zalloc(sizeof(struct lock_seq_stat));
- if (!seq)
- die("Not enough memory\n");
+ if (!seq) {
+ pr_err("memory allocation failed\n");
+ return NULL;
+ }
seq->state = SEQ_STATE_UNINITIALIZED;
seq->addr = addr;
@@ -403,7 +412,7 @@ enum acquire_flags {
READ_LOCK = 2,
};
-static void
+static int
report_lock_acquire_event(struct trace_acquire_event *acquire_event,
const struct perf_sample *sample)
{
@@ -412,11 +421,18 @@ report_lock_acquire_event(struct trace_acquire_event *acquire_event,
struct lock_seq_stat *seq;
ls = lock_stat_findnew(acquire_event->addr, acquire_event->name);
+ if (!ls)
+ return -1;
if (ls->discard)
- return;
+ return 0;
ts = thread_stat_findnew(sample->tid);
+ if (!ts)
+ return -1;
+
seq = get_seq(ts, acquire_event->addr);
+ if (!seq)
+ return -1;
switch (seq->state) {
case SEQ_STATE_UNINITIALIZED:
@@ -461,10 +477,10 @@ broken:
ls->nr_acquire++;
seq->prev_event_time = sample->time;
end:
- return;
+ return 0;
}
-static void
+static int
report_lock_acquired_event(struct trace_acquired_event *acquired_event,
const struct perf_sample *sample)
{
@@ -475,16 +491,23 @@ report_lock_acquired_event(struct trace_acquired_event *acquired_event,
u64 contended_term;
ls = lock_stat_findnew(acquired_event->addr, acquired_event->name);
+ if (!ls)
+ return -1;
if (ls->discard)
- return;
+ return 0;
ts = thread_stat_findnew(sample->tid);
+ if (!ts)
+ return -1;
+
seq = get_seq(ts, acquired_event->addr);
+ if (!seq)
+ return -1;
switch (seq->state) {
case SEQ_STATE_UNINITIALIZED:
/* orphan event, do nothing */
- return;
+ return 0;
case SEQ_STATE_ACQUIRING:
break;
case SEQ_STATE_CONTENDED:
@@ -515,10 +538,10 @@ report_lock_acquired_event(struct trace_acquired_event *acquired_event,
ls->nr_acquired++;
seq->prev_event_time = timestamp;
end:
- return;
+ return 0;
}
-static void
+static int
report_lock_contended_event(struct trace_contended_event *contended_event,
const struct perf_sample *sample)
{
@@ -527,16 +550,23 @@ report_lock_contended_event(struct trace_contended_event *contended_event,
struct lock_seq_stat *seq;
ls = lock_stat_findnew(contended_event->addr, contended_event->name);
+ if (!ls)
+ return -1;
if (ls->discard)
- return;
+ return 0;
ts = thread_stat_findnew(sample->tid);
+ if (!ts)
+ return -1;
+
seq = get_seq(ts, contended_event->addr);
+ if (!seq)
+ return -1;
switch (seq->state) {
case SEQ_STATE_UNINITIALIZED:
/* orphan event, do nothing */
- return;
+ return 0;
case SEQ_STATE_ACQUIRING:
break;
case SEQ_STATE_RELEASED:
@@ -559,10 +589,10 @@ report_lock_contended_event(struct trace_contended_event *contended_event,
ls->nr_contended++;
seq->prev_event_time = sample->time;
end:
- return;
+ return 0;
}
-static void
+static int
report_lock_release_event(struct trace_release_event *release_event,
const struct perf_sample *sample)
{
@@ -571,11 +601,18 @@ report_lock_release_event(struct trace_release_event *release_event,
struct lock_seq_stat *seq;
ls = lock_stat_findnew(release_event->addr, release_event->name);
+ if (!ls)
+ return -1;
if (ls->discard)
- return;
+ return 0;
ts = thread_stat_findnew(sample->tid);
+ if (!ts)
+ return -1;
+
seq = get_seq(ts, release_event->addr);
+ if (!seq)
+ return -1;
switch (seq->state) {
case SEQ_STATE_UNINITIALIZED:
@@ -609,7 +646,7 @@ free_seq:
list_del(&seq->list);
free(seq);
end:
- return;
+ return 0;
}
/* lock oriented handlers */
@@ -623,13 +660,14 @@ static struct trace_lock_handler report_lock_ops = {
static struct trace_lock_handler *trace_handler;
-static void perf_evsel__process_lock_acquire(struct perf_evsel *evsel,
+static int perf_evsel__process_lock_acquire(struct perf_evsel *evsel,
struct perf_sample *sample)
{
struct trace_acquire_event acquire_event;
struct event_format *event = evsel->tp_format;
void *data = sample->raw_data;
u64 tmp; /* this is required for casting... */
+ int rc = 0;
tmp = raw_field_value(event, "lockdep_addr", data);
memcpy(&acquire_event.addr, &tmp, sizeof(void *));
@@ -637,70 +675,84 @@ static void perf_evsel__process_lock_acquire(struct perf_evsel *evsel,
acquire_event.flag = (int)raw_field_value(event, "flag", data);
if (trace_handler->acquire_event)
- trace_handler->acquire_event(&acquire_event, sample);
+ rc = trace_handler->acquire_event(&acquire_event, sample);
+
+ return rc;
}
-static void perf_evsel__process_lock_acquired(struct perf_evsel *evsel,
+static int perf_evsel__process_lock_acquired(struct perf_evsel *evsel,
struct perf_sample *sample)
{
struct trace_acquired_event acquired_event;
struct event_format *event = evsel->tp_format;
void *data = sample->raw_data;
u64 tmp; /* this is required for casting... */
+ int rc = 0;
tmp = raw_field_value(event, "lockdep_addr", data);
memcpy(&acquired_event.addr, &tmp, sizeof(void *));
acquired_event.name = (char *)raw_field_ptr(event, "name", data);
- if (trace_handler->acquire_event)
- trace_handler->acquired_event(&acquired_event, sample);
+ if (trace_handler->acquired_event)
+ rc = trace_handler->acquired_event(&acquired_event, sample);
+
+ return rc;
}
-static void perf_evsel__process_lock_contended(struct perf_evsel *evsel,
+static int perf_evsel__process_lock_contended(struct perf_evsel *evsel,
struct perf_sample *sample)
{
struct trace_contended_event contended_event;
struct event_format *event = evsel->tp_format;
void *data = sample->raw_data;
u64 tmp; /* this is required for casting... */
+ int rc = 0;
tmp = raw_field_value(event, "lockdep_addr", data);
memcpy(&contended_event.addr, &tmp, sizeof(void *));
contended_event.name = (char *)raw_field_ptr(event, "name", data);
- if (trace_handler->acquire_event)
- trace_handler->contended_event(&contended_event, sample);
+ if (trace_handler->contended_event)
+ rc = trace_handler->contended_event(&contended_event, sample);
+
+ return rc;
}
-static void perf_evsel__process_lock_release(struct perf_evsel *evsel,
+static int perf_evsel__process_lock_release(struct perf_evsel *evsel,
struct perf_sample *sample)
{
struct trace_release_event release_event;
struct event_format *event = evsel->tp_format;
void *data = sample->raw_data;
u64 tmp; /* this is required for casting... */
+ int rc = 0;
tmp = raw_field_value(event, "lockdep_addr", data);
memcpy(&release_event.addr, &tmp, sizeof(void *));
release_event.name = (char *)raw_field_ptr(event, "name", data);
- if (trace_handler->acquire_event)
- trace_handler->release_event(&release_event, sample);
+ if (trace_handler->release_event)
+ rc = trace_handler->release_event(&release_event, sample);
+
+ return rc;
}
-static void perf_evsel__process_lock_event(struct perf_evsel *evsel,
+static int perf_evsel__process_lock_event(struct perf_evsel *evsel,
struct perf_sample *sample)
{
struct event_format *event = evsel->tp_format;
+ int rc = 0;
if (!strcmp(event->name, "lock_acquire"))
- perf_evsel__process_lock_acquire(evsel, sample);
+ rc = perf_evsel__process_lock_acquire(evsel, sample);
if (!strcmp(event->name, "lock_acquired"))
- perf_evsel__process_lock_acquired(evsel, sample);
+ rc = perf_evsel__process_lock_acquired(evsel, sample);
if (!strcmp(event->name, "lock_contended"))
- perf_evsel__process_lock_contended(evsel, sample);
+ rc = perf_evsel__process_lock_contended(evsel, sample);
if (!strcmp(event->name, "lock_release"))
- perf_evsel__process_lock_release(evsel, sample);
+ rc = perf_evsel__process_lock_release(evsel, sample);
+
+ return rc;
}
static void print_bad_events(int bad, int total)
@@ -802,14 +854,20 @@ static void dump_map(void)
}
}
-static void dump_info(void)
+static int dump_info(void)
{
+ int rc = 0;
+
if (info_threads)
dump_threads();
else if (info_map)
dump_map();
- else
- die("Unknown type of information\n");
+ else {
+ rc = -1;
+ pr_err("Unknown type of information\n");
+ }
+
+ return rc;
}
static int process_sample_event(struct perf_tool *tool __used,
@@ -826,8 +884,7 @@ static int process_sample_event(struct perf_tool *tool __used,
return -1;
}
- perf_evsel__process_lock_event(evsel, sample);
- return 0;
+ return perf_evsel__process_lock_event(evsel, sample);
}
static struct perf_tool eops = {
@@ -839,8 +896,10 @@ static struct perf_tool eops = {
static int read_events(void)
{
session = perf_session__new(input_name, O_RDONLY, 0, false, &eops);
- if (!session)
- die("Initializing perf session failed\n");
+ if (!session) {
+ pr_err("Initializing perf session failed\n");
+ return -1;
+ }
return perf_session__process_events(session, &eops);
}
@@ -857,13 +916,18 @@ static void sort_result(void)
}
}
-static void __cmd_report(void)
+static int __cmd_report(void)
{
setup_pager();
- select_key();
- read_events();
+
+ if ((select_key() != 0) ||
+ (read_events() != 0))
+ return -1;
+
sort_result();
print_result();
+
+ return 0;
}
static const char * const report_usage[] = {
@@ -959,6 +1023,7 @@ static int __cmd_record(int argc, const char **argv)
int cmd_lock(int argc, const char **argv, const char *prefix __used)
{
unsigned int i;
+ int rc = 0;
symbol__init();
for (i = 0; i < LOCKHASH_SIZE; i++)
@@ -993,11 +1058,13 @@ int cmd_lock(int argc, const char **argv, const char *prefix __used)
/* recycling report_lock_ops */
trace_handler = &report_lock_ops;
setup_pager();
- read_events();
- dump_info();
+ if (read_events() != 0)
+ rc = -1;
+ else
+ rc = dump_info();
} else {
usage_with_options(lock_usage, lock_options);
}
- return 0;
+ return rc;
}
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 05/17] perf stat: Remove use of die/exit and handle errors
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (3 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 04/17] perf lock: Remove use of die and handle errors Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 06/17] perf help: Remove use of die " Arnaldo Carvalho de Melo
` (11 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Allows perf to clean up properly on program termination.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-5-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-stat.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d53d8ab..02f49eb 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -428,7 +428,7 @@ static int run_perf_stat(int argc __used, const char **argv)
if (forks && (pipe(child_ready_pipe) < 0 || pipe(go_pipe) < 0)) {
perror("failed to create pipes");
- exit(1);
+ return -1;
}
if (forks) {
@@ -510,7 +510,8 @@ static int run_perf_stat(int argc __used, const char **argv)
}
if (child_pid != -1)
kill(child_pid, SIGTERM);
- die("Not all events could be opened.\n");
+
+ pr_err("Not all events could be opened.\n");
return -1;
}
counter->supported = true;
@@ -1189,7 +1190,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
output = fopen(output_name, mode);
if (!output) {
perror("failed to create output file");
- exit(-1);
+ return -1;
}
clock_gettime(CLOCK_REALTIME, &tm);
fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 06/17] perf help: Remove use of die and handle errors
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (4 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 05/17] perf stat: Remove use of die/exit " Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 07/17] perf script: Remove use of die/exit Arnaldo Carvalho de Melo
` (10 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Allows perf to clean up properly on exit.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-6-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-help.c | 48 +++++++++++++++++++++++++++++++-------------
1 files changed, 34 insertions(+), 14 deletions(-)
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index 6d5a8a7..f9daae5 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -24,13 +24,14 @@ static struct man_viewer_info_list {
} *man_viewer_info_list;
enum help_format {
+ HELP_FORMAT_NONE,
HELP_FORMAT_MAN,
HELP_FORMAT_INFO,
HELP_FORMAT_WEB,
};
static bool show_all = false;
-static enum help_format help_format = HELP_FORMAT_MAN;
+static enum help_format help_format = HELP_FORMAT_NONE;
static struct option builtin_help_options[] = {
OPT_BOOLEAN('a', "all", &show_all, "print all available commands"),
OPT_SET_UINT('m', "man", &help_format, "show man page", HELP_FORMAT_MAN),
@@ -54,7 +55,9 @@ static enum help_format parse_help_format(const char *format)
return HELP_FORMAT_INFO;
if (!strcmp(format, "web") || !strcmp(format, "html"))
return HELP_FORMAT_WEB;
- die("unrecognized help format '%s'", format);
+
+ pr_err("unrecognized help format '%s'", format);
+ return HELP_FORMAT_NONE;
}
static const char *get_man_viewer_info(const char *name)
@@ -259,6 +262,8 @@ static int perf_help_config(const char *var, const char *value, void *cb)
if (!value)
return config_error_nonbool(var);
help_format = parse_help_format(value);
+ if (help_format == HELP_FORMAT_NONE)
+ return -1;
return 0;
}
if (!strcmp(var, "man.viewer")) {
@@ -352,7 +357,7 @@ static void exec_viewer(const char *name, const char *page)
warning("'%s': unknown man viewer.", name);
}
-static void show_man_page(const char *perf_cmd)
+static int show_man_page(const char *perf_cmd)
{
struct man_viewer_list *viewer;
const char *page = cmd_to_page(perf_cmd);
@@ -365,28 +370,35 @@ static void show_man_page(const char *perf_cmd)
if (fallback)
exec_viewer(fallback, page);
exec_viewer("man", page);
- die("no man viewer handled the request");
+
+ pr_err("no man viewer handled the request");
+ return -1;
}
-static void show_info_page(const char *perf_cmd)
+static int show_info_page(const char *perf_cmd)
{
const char *page = cmd_to_page(perf_cmd);
setenv("INFOPATH", system_path(PERF_INFO_PATH), 1);
execlp("info", "info", "perfman", page, NULL);
+ return -1;
}
-static void get_html_page_path(struct strbuf *page_path, const char *page)
+static int get_html_page_path(struct strbuf *page_path, const char *page)
{
struct stat st;
const char *html_path = system_path(PERF_HTML_PATH);
/* Check that we have a perf documentation directory. */
if (stat(mkpath("%s/perf.html", html_path), &st)
- || !S_ISREG(st.st_mode))
- die("'%s': not a documentation directory.", html_path);
+ || !S_ISREG(st.st_mode)) {
+ pr_err("'%s': not a documentation directory.", html_path);
+ return -1;
+ }
strbuf_init(page_path, 0);
strbuf_addf(page_path, "%s/%s.html", html_path, page);
+
+ return 0;
}
/*
@@ -401,19 +413,23 @@ static void open_html(const char *path)
}
#endif
-static void show_html_page(const char *perf_cmd)
+static int show_html_page(const char *perf_cmd)
{
const char *page = cmd_to_page(perf_cmd);
struct strbuf page_path; /* it leaks but we exec bellow */
- get_html_page_path(&page_path, page);
+ if (get_html_page_path(&page_path, page) != 0)
+ return -1;
open_html(page_path.buf);
+
+ return 0;
}
int cmd_help(int argc, const char **argv, const char *prefix __used)
{
const char *alias;
+ int rc = 0;
load_command_list("perf-", &main_cmds, &other_cmds);
@@ -444,16 +460,20 @@ int cmd_help(int argc, const char **argv, const char *prefix __used)
switch (help_format) {
case HELP_FORMAT_MAN:
- show_man_page(argv[0]);
+ rc = show_man_page(argv[0]);
break;
case HELP_FORMAT_INFO:
- show_info_page(argv[0]);
+ rc = show_info_page(argv[0]);
break;
case HELP_FORMAT_WEB:
- show_html_page(argv[0]);
+ rc = show_html_page(argv[0]);
+ break;
+ case HELP_FORMAT_NONE:
+ /* fall-through */
default:
+ rc = -1;
break;
}
- return 0;
+ return rc;
}
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 07/17] perf script: Remove use of die/exit
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (5 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 06/17] perf help: Remove use of die " Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 08/17] perf record: " Arnaldo Carvalho de Melo
` (9 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Allows perf to clean up properly on exit. Only exits left are exec
failures which are appropriate and usage callbacks that list available
options.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-7-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-script.c | 60 +++++++++++++++++++++++++++++-------------
1 files changed, 41 insertions(+), 19 deletions(-)
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 2d6e3b2..c350cfe 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1153,18 +1153,23 @@ static const struct option options[] = {
OPT_END()
};
-static bool have_cmd(int argc, const char **argv)
+static int have_cmd(int argc, const char **argv)
{
char **__argv = malloc(sizeof(const char *) * argc);
- if (!__argv)
- die("malloc");
+ if (!__argv) {
+ pr_err("malloc failed\n");
+ return -1;
+ }
+
memcpy(__argv, argv, sizeof(const char *) * argc);
argc = parse_options(argc, (const char **)__argv, record_options,
NULL, PARSE_OPT_STOP_AT_NON_OPTION);
free(__argv);
- return argc != 0;
+ system_wide = (argc == 0);
+
+ return 0;
}
int cmd_script(int argc, const char **argv, const char *prefix __used)
@@ -1231,13 +1236,13 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
if (pipe(live_pipe) < 0) {
perror("failed to create pipe");
- exit(-1);
+ return -1;
}
pid = fork();
if (pid < 0) {
perror("failed to fork");
- exit(-1);
+ return -1;
}
if (!pid) {
@@ -1249,13 +1254,18 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
if (is_top_script(argv[0])) {
system_wide = true;
} else if (!system_wide) {
- system_wide = !have_cmd(argc - rep_args,
- &argv[rep_args]);
+ if (have_cmd(argc - rep_args, &argv[rep_args]) != 0) {
+ err = -1;
+ goto out;
+ }
}
__argv = malloc((argc + 6) * sizeof(const char *));
- if (!__argv)
- die("malloc");
+ if (!__argv) {
+ pr_err("malloc failed\n");
+ err = -ENOMEM;
+ goto out;
+ }
__argv[j++] = "/bin/sh";
__argv[j++] = rec_script_path;
@@ -1277,8 +1287,12 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
close(live_pipe[1]);
__argv = malloc((argc + 4) * sizeof(const char *));
- if (!__argv)
- die("malloc");
+ if (!__argv) {
+ pr_err("malloc failed\n");
+ err = -ENOMEM;
+ goto out;
+ }
+
j = 0;
__argv[j++] = "/bin/sh";
__argv[j++] = rep_script_path;
@@ -1303,12 +1317,20 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
if (!rec_script_path)
system_wide = false;
- else if (!system_wide)
- system_wide = !have_cmd(argc - 1, &argv[1]);
+ else if (!system_wide) {
+ if (have_cmd(argc - 1, &argv[1]) != 0) {
+ err = -1;
+ goto out;
+ }
+ }
__argv = malloc((argc + 2) * sizeof(const char *));
- if (!__argv)
- die("malloc");
+ if (!__argv) {
+ pr_err("malloc failed\n");
+ err = -ENOMEM;
+ goto out;
+ }
+
__argv[j++] = "/bin/sh";
__argv[j++] = script_path;
if (system_wide)
@@ -1357,18 +1379,18 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
input = open(session->filename, O_RDONLY); /* input_name */
if (input < 0) {
perror("failed to open file");
- exit(-1);
+ return -1;
}
err = fstat(input, &perf_stat);
if (err < 0) {
perror("failed to stat file");
- exit(-1);
+ return -1;
}
if (!perf_stat.st_size) {
fprintf(stderr, "zero-sized file, nothing to do!\n");
- exit(0);
+ return 0;
}
scripting_ops = script_spec__lookup(generate_script_lang);
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 08/17] perf record: Remove use of die/exit
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (6 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 07/17] perf script: Remove use of die/exit Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 09/17] perf tools: Fix x86 builds with ARCH specified on the command line Arnaldo Carvalho de Melo
` (8 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
Allows perf to clean up properly on exit. If perf-record is exiting due
to failure, the on_exit should not run as the session has been deleted.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346005487-62961-8-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-record.c | 158 +++++++++++++++++++++++++++++-------------
1 files changed, 109 insertions(+), 49 deletions(-)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 479ff2a..7b8b891 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -71,19 +71,23 @@ static void advance_output(struct perf_record *rec, size_t size)
rec->bytes_written += size;
}
-static void write_output(struct perf_record *rec, void *buf, size_t size)
+static int write_output(struct perf_record *rec, void *buf, size_t size)
{
while (size) {
int ret = write(rec->output, buf, size);
- if (ret < 0)
- die("failed to write");
+ if (ret < 0) {
+ pr_err("failed to write\n");
+ return -1;
+ }
size -= ret;
buf += ret;
rec->bytes_written += ret;
}
+
+ return 0;
}
static int process_synthesized_event(struct perf_tool *tool,
@@ -92,11 +96,13 @@ static int process_synthesized_event(struct perf_tool *tool,
struct machine *machine __used)
{
struct perf_record *rec = container_of(tool, struct perf_record, tool);
- write_output(rec, event, event->header.size);
+ if (write_output(rec, event, event->header.size) < 0)
+ return -1;
+
return 0;
}
-static void perf_record__mmap_read(struct perf_record *rec,
+static int perf_record__mmap_read(struct perf_record *rec,
struct perf_mmap *md)
{
unsigned int head = perf_mmap__read_head(md);
@@ -104,9 +110,10 @@ static void perf_record__mmap_read(struct perf_record *rec,
unsigned char *data = md->base + rec->page_size;
unsigned long size;
void *buf;
+ int rc = 0;
if (old == head)
- return;
+ return 0;
rec->samples++;
@@ -117,17 +124,26 @@ static void perf_record__mmap_read(struct perf_record *rec,
size = md->mask + 1 - (old & md->mask);
old += size;
- write_output(rec, buf, size);
+ if (write_output(rec, buf, size) < 0) {
+ rc = -1;
+ goto out;
+ }
}
buf = &data[old & md->mask];
size = head - old;
old += size;
- write_output(rec, buf, size);
+ if (write_output(rec, buf, size) < 0) {
+ rc = -1;
+ goto out;
+ }
md->prev = old;
perf_mmap__write_tail(md, old);
+
+out:
+ return rc;
}
static volatile int done = 0;
@@ -183,12 +199,13 @@ static bool perf_evlist__equal(struct perf_evlist *evlist,
return true;
}
-static void perf_record__open(struct perf_record *rec)
+static int perf_record__open(struct perf_record *rec)
{
struct perf_evsel *pos;
struct perf_evlist *evlist = rec->evlist;
struct perf_session *session = rec->session;
struct perf_record_opts *opts = &rec->opts;
+ int rc = 0;
perf_evlist__config_attrs(evlist, opts);
@@ -222,10 +239,13 @@ try_again:
if (err == EPERM || err == EACCES) {
ui__error_paranoid();
- exit(EXIT_FAILURE);
+ rc = -err;
+ goto out;
} else if (err == ENODEV && opts->target.cpu_list) {
- die("No such device - did you specify"
- " an out-of-range profile CPU?\n");
+ pr_err("No such device - did you specify"
+ " an out-of-range profile CPU?\n");
+ rc = -err;
+ goto out;
} else if (err == EINVAL) {
if (!opts->exclude_guest_missing &&
(attr->exclude_guest || attr->exclude_host)) {
@@ -272,7 +292,8 @@ try_again:
if (err == ENOENT) {
ui__error("The %s event is not supported.\n",
perf_evsel__name(pos));
- exit(EXIT_FAILURE);
+ rc = -err;
+ goto out;
}
printf("\n");
@@ -280,34 +301,46 @@ try_again:
err, strerror(err));
#if defined(__i386__) || defined(__x86_64__)
- if (attr->type == PERF_TYPE_HARDWARE && err == EOPNOTSUPP)
- die("No hardware sampling interrupt available."
- " No APIC? If so then you can boot the kernel"
- " with the \"lapic\" boot parameter to"
- " force-enable it.\n");
+ if (attr->type == PERF_TYPE_HARDWARE &&
+ err == EOPNOTSUPP) {
+ pr_err("No hardware sampling interrupt available."
+ " No APIC? If so then you can boot the kernel"
+ " with the \"lapic\" boot parameter to"
+ " force-enable it.\n");
+ rc = -err;
+ goto out;
+ }
#endif
- die("No CONFIG_PERF_EVENTS=y kernel support configured?\n");
+ pr_err("No CONFIG_PERF_EVENTS=y kernel support configured?\n");
+ rc = -err;
+ goto out;
}
}
if (perf_evlist__set_filters(evlist)) {
error("failed to set filter with %d (%s)\n", errno,
strerror(errno));
- exit(-1);
+ rc = -1;
+ goto out;
}
if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
- if (errno == EPERM)
- die("Permission error mapping pages.\n"
- "Consider increasing "
- "/proc/sys/kernel/perf_event_mlock_kb,\n"
- "or try again with a smaller value of -m/--mmap_pages.\n"
- "(current value: %d)\n", opts->mmap_pages);
- else if (!is_power_of_2(opts->mmap_pages))
- die("--mmap_pages/-m value must be a power of two.");
-
- die("failed to mmap with %d (%s)\n", errno, strerror(errno));
+ if (errno == EPERM) {
+ pr_err("Permission error mapping pages.\n"
+ "Consider increasing "
+ "/proc/sys/kernel/perf_event_mlock_kb,\n"
+ "or try again with a smaller value of -m/--mmap_pages.\n"
+ "(current value: %d)\n", opts->mmap_pages);
+ rc = -errno;
+ } else if (!is_power_of_2(opts->mmap_pages)) {
+ pr_err("--mmap_pages/-m value must be a power of two.");
+ rc = -EINVAL;
+ } else {
+ pr_err("failed to mmap with %d (%s)\n", errno, strerror(errno));
+ rc = -errno;
+ }
+ goto out;
}
if (rec->file_new)
@@ -315,11 +348,14 @@ try_again:
else {
if (!perf_evlist__equal(session->evlist, evlist)) {
fprintf(stderr, "incompatible append\n");
- exit(-1);
+ rc = -1;
+ goto out;
}
}
perf_session__set_id_hdr_size(session);
+out:
+ return rc;
}
static int process_buildids(struct perf_record *rec)
@@ -335,10 +371,13 @@ static int process_buildids(struct perf_record *rec)
size, &build_id__mark_dso_hit_ops);
}
-static void perf_record__exit(int status __used, void *arg)
+static void perf_record__exit(int status, void *arg)
{
struct perf_record *rec = arg;
+ if (status != 0)
+ return;
+
if (!rec->opts.pipe_output) {
rec->session->header.data_size += rec->bytes_written;
@@ -393,17 +432,26 @@ static struct perf_event_header finished_round_event = {
.type = PERF_RECORD_FINISHED_ROUND,
};
-static void perf_record__mmap_read_all(struct perf_record *rec)
+static int perf_record__mmap_read_all(struct perf_record *rec)
{
int i;
+ int rc = 0;
for (i = 0; i < rec->evlist->nr_mmaps; i++) {
- if (rec->evlist->mmap[i].base)
- perf_record__mmap_read(rec, &rec->evlist->mmap[i]);
+ if (rec->evlist->mmap[i].base) {
+ if (perf_record__mmap_read(rec, &rec->evlist->mmap[i]) != 0) {
+ rc = -1;
+ goto out;
+ }
+ }
}
if (perf_header__has_feat(&rec->session->header, HEADER_TRACING_DATA))
- write_output(rec, &finished_round_event, sizeof(finished_round_event));
+ rc = write_output(rec, &finished_round_event,
+ sizeof(finished_round_event));
+
+out:
+ return rc;
}
static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
@@ -463,7 +511,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
output = open(output_name, flags, S_IRUSR | S_IWUSR);
if (output < 0) {
perror("failed to create output file");
- exit(-1);
+ return -1;
}
rec->output = output;
@@ -503,7 +551,10 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
}
}
- perf_record__open(rec);
+ if (perf_record__open(rec) != 0) {
+ err = -1;
+ goto out_delete_session;
+ }
/*
* perf_session__delete(session) will be called at perf_record__exit()
@@ -513,19 +564,20 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
if (opts->pipe_output) {
err = perf_header__write_pipe(output);
if (err < 0)
- return err;
+ goto out_delete_session;
} else if (rec->file_new) {
err = perf_session__write_header(session, evsel_list,
output, false);
if (err < 0)
- return err;
+ goto out_delete_session;
}
if (!rec->no_buildid
&& !perf_header__has_feat(&session->header, HEADER_BUILD_ID)) {
pr_err("Couldn't generate buildids. "
"Use --no-buildid to profile anyway.\n");
- return -1;
+ err = -1;
+ goto out_delete_session;
}
rec->post_processing_offset = lseek(output, 0, SEEK_CUR);
@@ -533,7 +585,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
machine = perf_session__find_host_machine(session);
if (!machine) {
pr_err("Couldn't find native kernel information.\n");
- return -1;
+ err = -1;
+ goto out_delete_session;
}
if (opts->pipe_output) {
@@ -541,14 +594,14 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
process_synthesized_event);
if (err < 0) {
pr_err("Couldn't synthesize attrs.\n");
- return err;
+ goto out_delete_session;
}
err = perf_event__synthesize_event_types(tool, process_synthesized_event,
machine);
if (err < 0) {
pr_err("Couldn't synthesize event_types.\n");
- return err;
+ goto out_delete_session;
}
if (have_tracepoints(&evsel_list->entries)) {
@@ -564,7 +617,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
process_synthesized_event);
if (err <= 0) {
pr_err("Couldn't record tracing data.\n");
- return err;
+ goto out_delete_session;
}
advance_output(rec, err);
}
@@ -592,20 +645,24 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
perf_event__synthesize_guest_os);
if (!opts->target.system_wide)
- perf_event__synthesize_thread_map(tool, evsel_list->threads,
+ err = perf_event__synthesize_thread_map(tool, evsel_list->threads,
process_synthesized_event,
machine);
else
- perf_event__synthesize_threads(tool, process_synthesized_event,
+ err = perf_event__synthesize_threads(tool, process_synthesized_event,
machine);
+ if (err != 0)
+ goto out_delete_session;
+
if (rec->realtime_prio) {
struct sched_param param;
param.sched_priority = rec->realtime_prio;
if (sched_setscheduler(0, SCHED_FIFO, ¶m)) {
pr_err("Could not set realtime priority.\n");
- exit(-1);
+ err = -1;
+ goto out_delete_session;
}
}
@@ -620,7 +677,10 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
for (;;) {
int hits = rec->samples;
- perf_record__mmap_read_all(rec);
+ if (perf_record__mmap_read_all(rec) < 0) {
+ err = -1;
+ goto out_delete_session;
+ }
if (hits == rec->samples) {
if (done)
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 09/17] perf tools: Fix x86 builds with ARCH specified on the command line
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (7 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 08/17] perf record: " Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 10/17] perf tools: Fix intlist node removal Arnaldo Carvalho de Melo
` (7 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
e.g., compiling i386 on x86_64 using:
$ make -C tools/perf ARCH=i386
fails with:
CC /tmp/pbuild/util/evsel.o
In file included from util/evsel.c:21:0:
util/perf_regs.h:5:23: fatal error: perf_regs.h: No such file or directory
compilation terminated.
Adding V=1 you see that the include argument for the arch is
'-Iarch/i386/include' is wrong. It is supposed to be -Iarch/x86/include
per the redefinition of ARCH in the Makefile.
According to the make manual,
http://www.gnu.org/software/make/manual/make.html#Override-Directive:
"If a variable has been set with a command argument (see Overriding
Variables), then ordinary assignments in the makefile are ignored. If
you want to set the variable in the makefile even though it was set
with a command argument, you can use an override directive ..."
Make it so.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346094354-74356-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Makefile | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 722ddee..939cf6d 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -64,12 +64,12 @@ AR = $(CROSS_COMPILE)ar
# Additional ARCH settings for x86
ifeq ($(ARCH),i386)
- ARCH := x86
+ override ARCH := x86
NO_PERF_REGS := 0
LIBUNWIND_LIBS = -lunwind -lunwind-x86
endif
ifeq ($(ARCH),x86_64)
- ARCH := x86
+ override ARCH := x86
IS_X86_64 := 0
ifeq (, $(findstring m32,$(EXTRA_CFLAGS)))
IS_X86_64 := $(shell echo __x86_64__ | ${CC} -E -xc - | tail -n 1)
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 10/17] perf tools: Fix intlist node removal
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (8 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 09/17] perf tools: Fix x86 builds with ARCH specified on the command line Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 11/17] perf tools: Remove the node from rblist in strlist__remove Arnaldo Carvalho de Melo
` (6 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Suzuki K. Poulose, David Ahern, Arnaldo Carvalho de Melo
From: Suzuki K. Poulose <suzuki@in.ibm.com>
Similar to the one in :
https://lkml.org/lkml/2012/8/29/27
Make sure we remove the node from the rblist before we delete the node.
The rblist__remove_node() will invoke rblist->node_delete, which will
take care of deleting the node with the suitable function provided by
the user.
Signed-off-by: Suzuki K Poulose <suzuki@in.ibm.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Suzuki K Poulose <suzuki@in.ibm.com>
Link: http://lkml.kernel.org/r/20120831065840.5167.90318.stgit@suzukikp.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/intlist.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/intlist.c b/tools/perf/util/intlist.c
index fd530dc..77c504f 100644
--- a/tools/perf/util/intlist.c
+++ b/tools/perf/util/intlist.c
@@ -52,9 +52,9 @@ int intlist__add(struct intlist *ilist, int i)
return rblist__add_node(&ilist->rblist, (void *)((long)i));
}
-void intlist__remove(struct intlist *ilist __used, struct int_node *node)
+void intlist__remove(struct intlist *ilist, struct int_node *node)
{
- int_node__delete(node);
+ rblist__remove_node(&ilist->rblist, &node->rb_node);
}
struct int_node *intlist__find(struct intlist *ilist, int i)
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 11/17] perf tools: Remove the node from rblist in strlist__remove
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (9 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 10/17] perf tools: Fix intlist node removal Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:32 ` David Ahern
2012-09-05 23:08 ` [PATCH 12/17] perf tools: remove unneeded include of network header files Arnaldo Carvalho de Melo
` (5 subsequent siblings)
16 siblings, 1 reply; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Suzuki K. Poulose, Ananth N Mavinakayanahalli,
David Ahern, Frederic Weisbecker, Jiri Olsa, Namhyung Kim,
Peter Zijlstra, Arnaldo Carvalho de Melo
From: Suzuki K. Poulose <suzuki@in.ibm.com>
The following commit:
author David Ahern <dsahern@gmail.com>
Tue, 31 Jul 2012 04:31:33 +0000 (22:31 -0600)
committer Arnaldo Carvalho de Melo <acme@redhat.com>
Fri, 3 Aug 2012 13:39:51 +0000 (10:39 -0300)
commit ee8dd3ca43f151d9fbe1edeef68fb8a77eb9f047
causes a double free during a probe deletion as the node is never
removed from the list via strlist__remove(), even though it gets
'deleted' (read free()'d). This causes a double free when we do
strlist__delete() as the node is already deleted but present in the
rblist.
[suzukikp@suzukikp perf]$ sudo ./perf probe -a do_fork
Added new event:
probe:do_fork (on do_fork)
You can now use it in all perf tools, such as:
perf record -e probe:do_fork -aR sleep 1
[suzukikp@suzukikp perf]$ sudo ./perf probe -d do_fork
Removed event: probe:do_fork
*** glibc detected *** ./perf: double free or corruption (fasttop): 0x000000000133d600 ***
======= Backtrace: =========
/lib64/libc.so.6[0x38eec7dda6]
./perf(rblist__delete+0x5c)[0x47d3dc]
./perf(del_perf_probe_events+0xb6)[0x47b826]
./perf(cmd_probe+0x471)[0x42c8d1]
./perf[0x4150b3]
./perf(main+0x501)[0x4148e1]
/lib64/libc.so.6(__libc_start_main+0xed)[0x38eec2169d]
./perf[0x414a61]
Make sure we remove the node from the rblist before we delete the node.
The rblist__remove_node() will invoke rblist->node_delete, which will
take care of deleting the node with the suitable function provided by
the user.
Reported-by: Ananth N. Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20120829055840.7802.1459.stgit@suzukikp.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/strlist.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
index 95856ff..155d8b7 100644
--- a/tools/perf/util/strlist.c
+++ b/tools/perf/util/strlist.c
@@ -93,7 +93,7 @@ out:
void strlist__remove(struct strlist *slist, struct str_node *snode)
{
- str_node__delete(snode, slist->dupstr);
+ rblist__remove_node(&slist->rblist, &snode->rb_node);
}
struct str_node *strlist__find(struct strlist *slist, const char *entry)
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* Re: [PATCH 11/17] perf tools: Remove the node from rblist in strlist__remove
2012-09-05 23:08 ` [PATCH 11/17] perf tools: Remove the node from rblist in strlist__remove Arnaldo Carvalho de Melo
@ 2012-09-05 23:32 ` David Ahern
0 siblings, 0 replies; 21+ messages in thread
From: David Ahern @ 2012-09-05 23:32 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: Ingo Molnar, linux-kernel, Suzuki K. Poulose,
Ananth N Mavinakayanahalli, Frederic Weisbecker, Jiri Olsa,
Namhyung Kim, Peter Zijlstra, Arnaldo Carvalho de Melo
This one needs to go through urgent.
On 9/5/12 5:08 PM, Arnaldo Carvalho de Melo wrote:
> From: Suzuki K. Poulose <suzuki@in.ibm.com>
>
> The following commit:
>
> author David Ahern <dsahern@gmail.com>
> Tue, 31 Jul 2012 04:31:33 +0000 (22:31 -0600)
> committer Arnaldo Carvalho de Melo <acme@redhat.com>
> Fri, 3 Aug 2012 13:39:51 +0000 (10:39 -0300)
> commit ee8dd3ca43f151d9fbe1edeef68fb8a77eb9f047
>
> causes a double free during a probe deletion as the node is never
> removed from the list via strlist__remove(), even though it gets
> 'deleted' (read free()'d). This causes a double free when we do
> strlist__delete() as the node is already deleted but present in the
> rblist.
>
> [suzukikp@suzukikp perf]$ sudo ./perf probe -a do_fork
> Added new event:
> probe:do_fork (on do_fork)
>
> You can now use it in all perf tools, such as:
>
> perf record -e probe:do_fork -aR sleep 1
>
> [suzukikp@suzukikp perf]$ sudo ./perf probe -d do_fork
> Removed event: probe:do_fork
> *** glibc detected *** ./perf: double free or corruption (fasttop): 0x000000000133d600 ***
> ======= Backtrace: =========
> /lib64/libc.so.6[0x38eec7dda6]
> ./perf(rblist__delete+0x5c)[0x47d3dc]
> ./perf(del_perf_probe_events+0xb6)[0x47b826]
> ./perf(cmd_probe+0x471)[0x42c8d1]
> ./perf[0x4150b3]
> ./perf(main+0x501)[0x4148e1]
> /lib64/libc.so.6(__libc_start_main+0xed)[0x38eec2169d]
> ./perf[0x414a61]
>
> Make sure we remove the node from the rblist before we delete the node.
> The rblist__remove_node() will invoke rblist->node_delete, which will
> take care of deleting the node with the suitable function provided by
> the user.
>
> Reported-by: Ananth N. Mavinakayanahalli <ananth@in.ibm.com>
> Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
> Acked-by: David Ahern <dsahern@gmail.com>
> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
> Cc: David Ahern <dsahern@gmail.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Jiri Olsa <jolsa@redhat.com>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Link: http://lkml.kernel.org/r/20120829055840.7802.1459.stgit@suzukikp.in.ibm.com
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
> tools/perf/util/strlist.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
> index 95856ff..155d8b7 100644
> --- a/tools/perf/util/strlist.c
> +++ b/tools/perf/util/strlist.c
> @@ -93,7 +93,7 @@ out:
>
> void strlist__remove(struct strlist *slist, struct str_node *snode)
> {
> - str_node__delete(snode, slist->dupstr);
> + rblist__remove_node(&slist->rblist, &snode->rb_node);
> }
>
> struct str_node *strlist__find(struct strlist *slist, const char *entry)
>
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH 12/17] perf tools: remove unneeded include of network header files
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (10 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 11/17] perf tools: Remove the node from rblist in strlist__remove Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 13/17] perf header: Use evlist->nr_entries on write_event_desc() Arnaldo Carvalho de Melo
` (4 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, David Ahern, Frederic Weisbecker, Peter Zijlstra,
Arnaldo Carvalho de Melo
From: David Ahern <dsahern@gmail.com>
perf does not have networking related functionality, and the inclusion
of these headers is one of the causes of compile failures for Android:
https://lkml.org/lkml/2012/8/23/316
https://lkml.org/lkml/2012/8/28/293
So, remove them.
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1346255732-93246-1-git-send-email-dsahern@gmail.com
[ committer note: fix trace-event-perl.c compile failure by reordering includes ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
.../perf/util/scripting-engines/trace-event-perl.c | 8 ++++----
tools/perf/util/util.h | 5 -----
2 files changed, 4 insertions(+), 9 deletions(-)
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index d280010..94e6736 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -25,16 +25,16 @@
#include <ctype.h>
#include <errno.h>
-#include "../../perf.h"
#include "../util.h"
+#include <EXTERN.h>
+#include <perl.h>
+
+#include "../../perf.h"
#include "../thread.h"
#include "../event.h"
#include "../trace-event.h"
#include "../evsel.h"
-#include <EXTERN.h>
-#include <perl.h>
-
void boot_Perf__Trace__Context(pTHX_ CV *cv);
void boot_DynaLoader(pTHX_ CV *cv);
typedef PerlInterpreter * INTERP;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 00a93a9..67a3713 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -69,11 +69,6 @@
#include <sys/poll.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
-#include <sys/select.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <arpa/inet.h>
-#include <netdb.h>
#include <inttypes.h>
#include "../../../include/linux/magic.h"
#include "types.h"
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 13/17] perf header: Use evlist->nr_entries on write_event_desc()
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (11 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 12/17] perf tools: remove unneeded include of network header files Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 14/17] perf header: Set tracepoint event name only if not set Arnaldo Carvalho de Melo
` (3 subsequent siblings)
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Namhyung Kim, Namhyung Kim, Paul Mackerras,
Peter Zijlstra, Arnaldo Carvalho de Melo
From: Namhyung Kim <namhyung.kim@lge.com>
Number of events (evsels) in a evlist is kept on nr_entries field
so that we don't need to recalculate it.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346821373-31621-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
| 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
--git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 9696e64..a124b93 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -610,11 +610,10 @@ static int write_event_desc(int fd, struct perf_header *h __used,
struct perf_evlist *evlist)
{
struct perf_evsel *evsel;
- u32 nre = 0, nri, sz;
+ u32 nre, nri, sz;
int ret;
- list_for_each_entry(evsel, &evlist->entries, node)
- nre++;
+ nre = evlist->nr_entries;
/*
* write number of events
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 14/17] perf header: Set tracepoint event name only if not set
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (12 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 13/17] perf header: Use evlist->nr_entries on write_event_desc() Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-06 0:01 ` David Ahern
2012-09-05 23:08 ` [PATCH 15/17] perf header: Swap pmu mapping numbers if needed Arnaldo Carvalho de Melo
` (2 subsequent siblings)
16 siblings, 1 reply; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Namhyung Kim, Namhyung Kim, Paul Mackerras,
Peter Zijlstra, Arnaldo Carvalho de Melo
From: Namhyung Kim <namhyung.kim@lge.com>
The event name can be set already by processing a event_desc data.
So check it before setting to prevent possible leak.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346821373-31621-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
| 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
--git a/tools/perf/util/header.c b/tools/perf/util/header.c
index a124b93..05c9310 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2314,7 +2314,7 @@ static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist,
struct perf_evsel *pos;
list_for_each_entry(pos, &evlist->entries, node) {
- if (pos->attr.type == PERF_TYPE_TRACEPOINT &&
+ if (pos->attr.type == PERF_TYPE_TRACEPOINT && !pos->name &&
perf_evsel__set_tracepoint_name(pos, pevent))
return -1;
}
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* Re: [PATCH 14/17] perf header: Set tracepoint event name only if not set
2012-09-05 23:08 ` [PATCH 14/17] perf header: Set tracepoint event name only if not set Arnaldo Carvalho de Melo
@ 2012-09-06 0:01 ` David Ahern
2012-09-06 1:30 ` Namhyung Kim
0 siblings, 1 reply; 21+ messages in thread
From: David Ahern @ 2012-09-06 0:01 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo, Namhyung Kim
Cc: Ingo Molnar, linux-kernel, Namhyung Kim, Paul Mackerras,
Peter Zijlstra, Arnaldo Carvalho de Melo
On 9/5/12 5:08 PM, Arnaldo Carvalho de Melo wrote:
> From: Namhyung Kim <namhyung.kim@lge.com>
>
> The event name can be set already by processing a event_desc data.
>
> So check it before setting to prevent possible leak.
>
> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
> Link: http://lkml.kernel.org/r/1346821373-31621-3-git-send-email-namhyung@kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
> ---
> tools/perf/util/header.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
> index a124b93..05c9310 100644
> --- a/tools/perf/util/header.c
> +++ b/tools/perf/util/header.c
> @@ -2314,7 +2314,7 @@ static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist,
> struct perf_evsel *pos;
>
> list_for_each_entry(pos, &evlist->entries, node) {
> - if (pos->attr.type == PERF_TYPE_TRACEPOINT &&
> + if (pos->attr.type == PERF_TYPE_TRACEPOINT && !pos->name &&
> perf_evsel__set_tracepoint_name(pos, pevent))
> return -1;
> }
>
I'm getting a segfault running perf-script due to this patch. Most
likely this is exposing another problem. Back trace is:
#0 0x000000000049f4f2 in pevent_event_info (s=0x7fffffffdab0,
event=0x0, record=0x7fffffffda70)
at tools/lib/traceevent/event-parse.c:4183
#1 0x000000000046cd52 in event_format__print (event=0x0, cpu=<optimized
out>, data=<optimized out>, size=<optimized out>)
at util/trace-event-parse.c:182
#2 0x000000000042d41b in process_event (event=0x7fffef9d1e60,
sample=0x7fffffffdc90, evsel=0x90d870, machine=0x906f80,
al=<optimized out>) at builtin-script.c:415
#3 0x000000000042c4e1 in process_sample_event (tool=<optimized out>,
event=0x7fffef9d1e60, sample=0x7fffffffdc90, evsel=
0x90d870, machine=0x906f80) at builtin-script.c:515
#4 0x000000000046864d in perf_session_deliver_event (session=<optimized
out>, event=0x7fffef9d1e60, sample=0x7fffffffdc90,
tool=0x79d020, file_offset=<optimized out>) at util/session.c:1065
#5 0x0000000000468c5a in flush_sample_queue (s=0x906f20, tool=0x79d020)
at util/session.c:719
#6 0x0000000000468d46 in process_finished_round (tool=<optimized out>,
event=<optimized out>, session=0x906f20)
at util/session.c:790
#7 0x0000000000469055 in perf_session__process_user_event
(file_offset=541768, tool=0x79d020, event=0x7fffefa2b448,
session=0x906f20) at util/session.c:1129
#8 perf_session__process_event (session=0x906f20, event=0x7fffefa2b448,
tool=0x79d020, file_offset=541768)
at util/session.c:1161
#9 0x000000000046a851 in __perf_session__process_events
(session=0x906f20, data_offset=<optimized out>,
data_size=<optimized out>, file_size=2564784, tool=0x79d020) at
util/session.c:1429
#10 0x000000000042ebdc in __cmd_script (session=0x906f20) at
builtin-script.c:548
^ permalink raw reply [flat|nested] 21+ messages in thread* Re: [PATCH 14/17] perf header: Set tracepoint event name only if not set
2012-09-06 0:01 ` David Ahern
@ 2012-09-06 1:30 ` Namhyung Kim
0 siblings, 0 replies; 21+ messages in thread
From: Namhyung Kim @ 2012-09-06 1:30 UTC (permalink / raw)
To: David Ahern
Cc: Arnaldo Carvalho de Melo, Namhyung Kim, Ingo Molnar,
linux-kernel, Paul Mackerras, Peter Zijlstra,
Arnaldo Carvalho de Melo
On Wed, 05 Sep 2012 18:01:16 -0600, David Ahern wrote:
> On 9/5/12 5:08 PM, Arnaldo Carvalho de Melo wrote:
>> From: Namhyung Kim <namhyung.kim@lge.com>
>>
>> The event name can be set already by processing a event_desc data.
>>
>> So check it before setting to prevent possible leak.
>>
>> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
>> Cc: Ingo Molnar <mingo@kernel.org>
>> Cc: Paul Mackerras <paulus@samba.org>
>> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
>> Link: http://lkml.kernel.org/r/1346821373-31621-3-git-send-email-namhyung@kernel.org
>> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
>> ---
>> tools/perf/util/header.c | 2 +-
>> 1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
>> index a124b93..05c9310 100644
>> --- a/tools/perf/util/header.c
>> +++ b/tools/perf/util/header.c
>> @@ -2314,7 +2314,7 @@ static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist,
>> struct perf_evsel *pos;
>>
>> list_for_each_entry(pos, &evlist->entries, node) {
>> - if (pos->attr.type == PERF_TYPE_TRACEPOINT &&
>> + if (pos->attr.type == PERF_TYPE_TRACEPOINT && !pos->name &&
>> perf_evsel__set_tracepoint_name(pos, pevent))
>> return -1;
>> }
>>
>
> I'm getting a segfault running perf-script due to this patch. Most
> likely this is exposing another problem. Back trace is:
Hmm. It's because evsel->tp_format being not set, not sure why I didn't
detect this during tests. Will find out a solution.
Thanks,
Namhyung
>
> #0 0x000000000049f4f2 in pevent_event_info (s=0x7fffffffdab0,
> event=0x0, record=0x7fffffffda70)
> at tools/lib/traceevent/event-parse.c:4183
> #1 0x000000000046cd52 in event_format__print (event=0x0,
> cpu=<optimized out>, data=<optimized out>, size=<optimized out>)
> at util/trace-event-parse.c:182
> #2 0x000000000042d41b in process_event (event=0x7fffef9d1e60,
> sample=0x7fffffffdc90, evsel=0x90d870, machine=0x906f80,
> al=<optimized out>) at builtin-script.c:415
> #3 0x000000000042c4e1 in process_sample_event (tool=<optimized out>,
> event=0x7fffef9d1e60, sample=0x7fffffffdc90, evsel=
> 0x90d870, machine=0x906f80) at builtin-script.c:515
> #4 0x000000000046864d in perf_session_deliver_event
> (session=<optimized out>, event=0x7fffef9d1e60, sample=0x7fffffffdc90,
> tool=0x79d020, file_offset=<optimized out>) at util/session.c:1065
> #5 0x0000000000468c5a in flush_sample_queue (s=0x906f20,
> tool=0x79d020) at util/session.c:719
> #6 0x0000000000468d46 in process_finished_round (tool=<optimized
> out>, event=<optimized out>, session=0x906f20)
> at util/session.c:790
> #7 0x0000000000469055 in perf_session__process_user_event
> (file_offset=541768, tool=0x79d020, event=0x7fffefa2b448,
> session=0x906f20) at util/session.c:1129
> #8 perf_session__process_event (session=0x906f20,
> event=0x7fffefa2b448, tool=0x79d020, file_offset=541768)
> at util/session.c:1161
> #9 0x000000000046a851 in __perf_session__process_events
> (session=0x906f20, data_offset=<optimized out>,
> data_size=<optimized out>, file_size=2564784, tool=0x79d020) at
> util/session.c:1429
> #10 0x000000000042ebdc in __cmd_script (session=0x906f20) at
> builtin-script.c:548
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH 15/17] perf header: Swap pmu mapping numbers if needed
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (13 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 14/17] perf header: Set tracepoint event name only if not set Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 16/17] perf tools: Replace mempcpy with memcpy Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 17/17] perf tools: Allow user to indicate path to objdump in command line Arnaldo Carvalho de Melo
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Namhyung Kim, Namhyung Kim, Paul Mackerras,
Peter Zijlstra, Robert Richter, Arnaldo Carvalho de Melo
From: Namhyung Kim <namhyung.kim@lge.com>
Like others, the numbers can be saved in a different endian format than
a host machine. Swap them if needed.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Link: http://lkml.kernel.org/r/1346821373-31621-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
| 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
--git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 05c9310..43425b7 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1440,6 +1440,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp)
if (ret != sizeof(pmu_num))
goto error;
+ if (ph->needs_swap)
+ pmu_num = bswap_32(pmu_num);
+
if (!pmu_num) {
fprintf(fp, "# pmu mappings: not available\n");
return;
@@ -1448,6 +1451,9 @@ static void print_pmu_mappings(struct perf_header *ph, int fd, FILE *fp)
while (pmu_num) {
if (read(fd, &type, sizeof(type)) != sizeof(type))
break;
+ if (ph->needs_swap)
+ type = bswap_32(type);
+
name = do_read_string(fd, ph);
if (!name)
break;
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 16/17] perf tools: Replace mempcpy with memcpy
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (14 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 15/17] perf header: Swap pmu mapping numbers if needed Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
2012-09-05 23:08 ` [PATCH 17/17] perf tools: Allow user to indicate path to objdump in command line Arnaldo Carvalho de Melo
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar
Cc: linux-kernel, Irina Tirdea, Irina Tirdea, Frederic Weisbecker,
Namhyung Kim, Peter Zijlstra, Steven Rostedt,
Arnaldo Carvalho de Melo
From: Irina Tirdea <irina.tirdea@gmail.com>
mempcpy is not supported by bionic in Android and will lead to
compilation errors.
Replacing mempcpy with memcpy so it will work in Android.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/CANg8OW+Y3ZMG-GdhYu2_yKOYH_XEMgw73PdCX_23UTnfYhmttA@mail.gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/target.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
index 051eaa6..065528b 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -117,8 +117,8 @@ int perf_target__strerror(struct perf_target *target, int errnum,
if (err != buf) {
size_t len = strlen(err);
- char *c = mempcpy(buf, err, min(buflen - 1, len));
- *c = '\0';
+ memcpy(buf, err, min(buflen - 1, len));
+ *(buf + min(buflen - 1, len)) = '\0';
}
return 0;
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread* [PATCH 17/17] perf tools: Allow user to indicate path to objdump in command line
2012-09-05 23:08 [GIT PULL 00/17] perf/core improvements and fixes Arnaldo Carvalho de Melo
` (15 preceding siblings ...)
2012-09-05 23:08 ` [PATCH 16/17] perf tools: Replace mempcpy with memcpy Arnaldo Carvalho de Melo
@ 2012-09-05 23:08 ` Arnaldo Carvalho de Melo
16 siblings, 0 replies; 21+ messages in thread
From: Arnaldo Carvalho de Melo @ 2012-09-05 23:08 UTC (permalink / raw)
To: Ingo Molnar; +Cc: linux-kernel, Maciek Borzecki, Arnaldo Carvalho de Melo
From: Maciek Borzecki <maciek.borzecki@gmail.com>
When analyzing perf data from hosts of other architecture than one of
the local host it's useful to call objdump that is part of a toolchain
for that architecture. Instead of calling regular objdump, call one that
user specified in command line.
Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>
Acked-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1346754750.16299.3.camel@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/Documentation/perf-annotate.txt | 3 +++
tools/perf/Documentation/perf-report.txt | 3 +++
tools/perf/builtin-annotate.c | 2 ++
tools/perf/builtin-report.c | 2 ++
tools/perf/util/annotate.c | 4 +++-
tools/perf/util/annotate.h | 1 +
6 files changed, 14 insertions(+), 1 deletions(-)
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index c89f9e1..c8ffd9f 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -85,6 +85,9 @@ OPTIONS
-M::
--disassembler-style=:: Set disassembler style for objdump.
+--objdump=<path>::
+ Path to objdump binary.
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-report[1]
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 495210a..f4d91be 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -168,6 +168,9 @@ OPTIONS
branch stacks and it will automatically switch to the branch view mode,
unless --no-branch-stack is used.
+--objdump=<path>::
+ Path to objdump binary.
+
SEE ALSO
--------
linkperf:perf-stat[1], linkperf:perf-annotate[1]
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 67522cf..2f3f002 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -282,6 +282,8 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __used)
"Display raw encoding of assembly instructions (default)"),
OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
"Specify disassembler style (e.g. -M intel for intel syntax)"),
+ OPT_STRING(0, "objdump", &objdump_path, "path",
+ "objdump binary to use for disassembly and annotations"),
OPT_END()
};
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index d618253..1f8d11b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -638,6 +638,8 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
"Show a column with the sum of periods"),
OPT_CALLBACK_NOOPT('b', "branch-stack", &sort__branch_mode, "",
"use branch records for histogram filling", parse_branch_mode),
+ OPT_STRING(0, "objdump", &objdump_path, "path",
+ "objdump binary to use for disassembly and annotations"),
OPT_END()
};
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 3a282c0..51ef69c 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -17,6 +17,7 @@
#include <pthread.h>
const char *disassembler_style;
+const char *objdump_path;
static struct ins *ins__find(const char *name);
static int disasm_line__parse(char *line, char **namep, char **rawp);
@@ -820,9 +821,10 @@ fallback:
dso, dso->long_name, sym, sym->name);
snprintf(command, sizeof(command),
- "objdump %s%s --start-address=0x%016" PRIx64
+ "%s %s%s --start-address=0x%016" PRIx64
" --stop-address=0x%016" PRIx64
" -d %s %s -C %s|grep -v %s|expand",
+ objdump_path ? objdump_path : "objdump",
disassembler_style ? "-M " : "",
disassembler_style ? disassembler_style : "",
map__rip_2objdump(map, sym->start),
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 78a5692..a6d6bc5 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -152,5 +152,6 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
#endif
extern const char *disassembler_style;
+extern const char *objdump_path;
#endif /* __PERF_ANNOTATE_H */
--
1.7.1
^ permalink raw reply related [flat|nested] 21+ messages in thread