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-rw-r--r--tools/perf/util/intel-pt.c246
1 files changed, 184 insertions, 62 deletions
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index df061599fef4..33cf8928cf05 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -9,10 +9,10 @@
#include <stdbool.h>
#include <errno.h>
#include <linux/kernel.h>
+#include <linux/string.h>
#include <linux/types.h>
#include <linux/zalloc.h>
-#include "../perf.h"
#include "session.h"
#include "machine.h"
#include "memswap.h"
@@ -33,6 +33,7 @@
#include "tsc.h"
#include "intel-pt.h"
#include "config.h"
+#include "util/synthetic-events.h"
#include "time-utils.h"
#include "../arch/x86/include/uapi/asm/perf_regs.h"
@@ -56,7 +57,7 @@ struct intel_pt {
u32 auxtrace_type;
struct perf_session *session;
struct machine *machine;
- struct perf_evsel *switch_evsel;
+ struct evsel *switch_evsel;
struct thread *unknown_thread;
bool timeless_decoding;
bool sampling_mode;
@@ -104,7 +105,7 @@ struct intel_pt {
u64 cbr_id;
bool sample_pebs;
- struct perf_evsel *pebs_evsel;
+ struct evsel *pebs_evsel;
u64 tsc_bit;
u64 mtc_bit;
@@ -232,6 +233,16 @@ static void intel_pt_log_event(union perf_event *event)
perf_event__fprintf(event, f);
}
+static void intel_pt_dump_sample(struct perf_session *session,
+ struct perf_sample *sample)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+
+ printf("\n");
+ intel_pt_dump(pt, sample->aux_sample.data, sample->aux_sample.size);
+}
+
static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *a,
struct auxtrace_buffer *b)
{
@@ -723,11 +734,11 @@ static bool intel_pt_get_config(struct intel_pt *pt,
static bool intel_pt_exclude_kernel(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (intel_pt_get_config(pt, &evsel->attr, NULL) &&
- !evsel->attr.exclude_kernel)
+ if (intel_pt_get_config(pt, &evsel->core.attr, NULL) &&
+ !evsel->core.attr.exclude_kernel)
return false;
}
return true;
@@ -735,14 +746,14 @@ static bool intel_pt_exclude_kernel(struct intel_pt *pt)
static bool intel_pt_return_compression(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
u64 config;
if (!pt->noretcomp_bit)
return true;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (intel_pt_get_config(pt, &evsel->attr, &config) &&
+ if (intel_pt_get_config(pt, &evsel->core.attr, &config) &&
(config & pt->noretcomp_bit))
return false;
}
@@ -751,11 +762,11 @@ static bool intel_pt_return_compression(struct intel_pt *pt)
static bool intel_pt_branch_enable(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
u64 config;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (intel_pt_get_config(pt, &evsel->attr, &config) &&
+ if (intel_pt_get_config(pt, &evsel->core.attr, &config) &&
(config & 1) && !(config & 0x2000))
return false;
}
@@ -764,7 +775,7 @@ static bool intel_pt_branch_enable(struct intel_pt *pt)
static unsigned int intel_pt_mtc_period(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
unsigned int shift;
u64 config;
@@ -775,7 +786,7 @@ static unsigned int intel_pt_mtc_period(struct intel_pt *pt)
config >>= 1;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (intel_pt_get_config(pt, &evsel->attr, &config))
+ if (intel_pt_get_config(pt, &evsel->core.attr, &config))
return (config & pt->mtc_freq_bits) >> shift;
}
return 0;
@@ -783,7 +794,7 @@ static unsigned int intel_pt_mtc_period(struct intel_pt *pt)
static bool intel_pt_timeless_decoding(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
bool timeless_decoding = true;
u64 config;
@@ -791,9 +802,9 @@ static bool intel_pt_timeless_decoding(struct intel_pt *pt)
return true;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (!(evsel->attr.sample_type & PERF_SAMPLE_TIME))
+ if (!(evsel->core.attr.sample_type & PERF_SAMPLE_TIME))
return true;
- if (intel_pt_get_config(pt, &evsel->attr, &config)) {
+ if (intel_pt_get_config(pt, &evsel->core.attr, &config)) {
if (config & pt->tsc_bit)
timeless_decoding = false;
else
@@ -805,11 +816,11 @@ static bool intel_pt_timeless_decoding(struct intel_pt *pt)
static bool intel_pt_tracing_kernel(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (intel_pt_get_config(pt, &evsel->attr, NULL) &&
- !evsel->attr.exclude_kernel)
+ if (intel_pt_get_config(pt, &evsel->core.attr, NULL) &&
+ !evsel->core.attr.exclude_kernel)
return true;
}
return false;
@@ -817,7 +828,7 @@ static bool intel_pt_tracing_kernel(struct intel_pt *pt)
static bool intel_pt_have_tsc(struct intel_pt *pt)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
bool have_tsc = false;
u64 config;
@@ -825,7 +836,7 @@ static bool intel_pt_have_tsc(struct intel_pt *pt)
return false;
evlist__for_each_entry(pt->session->evlist, evsel) {
- if (intel_pt_get_config(pt, &evsel->attr, &config)) {
+ if (intel_pt_get_config(pt, &evsel->core.attr, &config)) {
if (config & pt->tsc_bit)
have_tsc = true;
else
@@ -835,6 +846,18 @@ static bool intel_pt_have_tsc(struct intel_pt *pt)
return have_tsc;
}
+static bool intel_pt_sampling_mode(struct intel_pt *pt)
+{
+ struct evsel *evsel;
+
+ evlist__for_each_entry(pt->session->evlist, evsel) {
+ if ((evsel->core.attr.sample_type & PERF_SAMPLE_AUX) &&
+ evsel->core.attr.aux_sample_size)
+ return true;
+ }
+ return false;
+}
+
static u64 intel_pt_ns_to_ticks(const struct intel_pt *pt, u64 ns)
{
u64 quot, rem;
@@ -1702,9 +1725,9 @@ static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq)
struct perf_sample sample = { .ip = 0, };
union perf_event *event = ptq->event_buf;
struct intel_pt *pt = ptq->pt;
- struct perf_evsel *evsel = pt->pebs_evsel;
- u64 sample_type = evsel->attr.sample_type;
- u64 id = evsel->id[0];
+ struct evsel *evsel = pt->pebs_evsel;
+ u64 sample_type = evsel->core.attr.sample_type;
+ u64 id = evsel->core.id[0];
u8 cpumode;
if (intel_pt_skip_event(pt))
@@ -1715,8 +1738,8 @@ static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq)
sample.id = id;
sample.stream_id = id;
- if (!evsel->attr.freq)
- sample.period = evsel->attr.sample_period;
+ if (!evsel->core.attr.freq)
+ sample.period = evsel->core.attr.sample_period;
/* No support for non-zero CS base */
if (items->has_ip)
@@ -1757,7 +1780,7 @@ static int intel_pt_synth_pebs_sample(struct intel_pt_queue *ptq)
if (sample_type & PERF_SAMPLE_REGS_INTR &&
items->mask[INTEL_PT_GP_REGS_POS]) {
u64 regs[sizeof(sample.intr_regs.mask)];
- u64 regs_mask = evsel->attr.sample_regs_intr;
+ u64 regs_mask = evsel->core.attr.sample_regs_intr;
u64 *pos;
sample.intr_regs.abi = items->is_32_bit ?
@@ -2319,6 +2342,56 @@ static int intel_pt_process_timeless_queues(struct intel_pt *pt, pid_t tid,
return 0;
}
+static void intel_pt_sample_set_pid_tid_cpu(struct intel_pt_queue *ptq,
+ struct auxtrace_queue *queue,
+ struct perf_sample *sample)
+{
+ struct machine *m = ptq->pt->machine;
+
+ ptq->pid = sample->pid;
+ ptq->tid = sample->tid;
+ ptq->cpu = queue->cpu;
+
+ intel_pt_log("queue %u cpu %d pid %d tid %d\n",
+ ptq->queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+
+ thread__zput(ptq->thread);
+
+ if (ptq->tid == -1)
+ return;
+
+ if (ptq->pid == -1) {
+ ptq->thread = machine__find_thread(m, -1, ptq->tid);
+ if (ptq->thread)
+ ptq->pid = ptq->thread->pid_;
+ return;
+ }
+
+ ptq->thread = machine__findnew_thread(m, ptq->pid, ptq->tid);
+}
+
+static int intel_pt_process_timeless_sample(struct intel_pt *pt,
+ struct perf_sample *sample)
+{
+ struct auxtrace_queue *queue;
+ struct intel_pt_queue *ptq;
+ u64 ts = 0;
+
+ queue = auxtrace_queues__sample_queue(&pt->queues, sample, pt->session);
+ if (!queue)
+ return -EINVAL;
+
+ ptq = queue->priv;
+ if (!ptq)
+ return 0;
+
+ ptq->stop = false;
+ ptq->time = sample->time;
+ intel_pt_sample_set_pid_tid_cpu(ptq, queue, sample);
+ intel_pt_run_decoder(ptq, &ts);
+ return 0;
+}
+
static int intel_pt_lost(struct intel_pt *pt, struct perf_sample *sample)
{
return intel_pt_synth_error(pt, INTEL_PT_ERR_LOST, sample->cpu,
@@ -2401,7 +2474,7 @@ static int intel_pt_sync_switch(struct intel_pt *pt, int cpu, pid_t tid,
static int intel_pt_process_switch(struct intel_pt *pt,
struct perf_sample *sample)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
pid_t tid;
int cpu, ret;
@@ -2549,7 +2622,11 @@ static int intel_pt_process_event(struct perf_session *session,
}
if (pt->timeless_decoding) {
- if (event->header.type == PERF_RECORD_EXIT) {
+ if (pt->sampling_mode) {
+ if (sample->aux_sample.size)
+ err = intel_pt_process_timeless_sample(pt,
+ sample);
+ } else if (event->header.type == PERF_RECORD_EXIT) {
err = intel_pt_process_timeless_queues(pt,
event->fork.tid,
sample->time);
@@ -2675,6 +2752,28 @@ static int intel_pt_process_auxtrace_event(struct perf_session *session,
return 0;
}
+static int intel_pt_queue_data(struct perf_session *session,
+ struct perf_sample *sample,
+ union perf_event *event, u64 data_offset)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ u64 timestamp;
+
+ if (event) {
+ return auxtrace_queues__add_event(&pt->queues, session, event,
+ data_offset, NULL);
+ }
+
+ if (sample->time && sample->time != (u64)-1)
+ timestamp = perf_time_to_tsc(sample->time, &pt->tc);
+ else
+ timestamp = 0;
+
+ return auxtrace_queues__add_sample(&pt->queues, session, sample,
+ data_offset, timestamp);
+}
+
struct intel_pt_synth {
struct perf_tool dummy_tool;
struct perf_session *session;
@@ -2713,13 +2812,13 @@ static int intel_pt_synth_event(struct perf_session *session, const char *name,
return err;
}
-static void intel_pt_set_event_name(struct perf_evlist *evlist, u64 id,
+static void intel_pt_set_event_name(struct evlist *evlist, u64 id,
const char *name)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
evlist__for_each_entry(evlist, evsel) {
- if (evsel->id && evsel->id[0] == id) {
+ if (evsel->core.id && evsel->core.id[0] == id) {
if (evsel->name)
zfree(&evsel->name);
evsel->name = strdup(name);
@@ -2728,13 +2827,13 @@ static void intel_pt_set_event_name(struct perf_evlist *evlist, u64 id,
}
}
-static struct perf_evsel *intel_pt_evsel(struct intel_pt *pt,
- struct perf_evlist *evlist)
+static struct evsel *intel_pt_evsel(struct intel_pt *pt,
+ struct evlist *evlist)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
evlist__for_each_entry(evlist, evsel) {
- if (evsel->attr.type == pt->pmu_type && evsel->ids)
+ if (evsel->core.attr.type == pt->pmu_type && evsel->core.ids)
return evsel;
}
@@ -2744,8 +2843,8 @@ static struct perf_evsel *intel_pt_evsel(struct intel_pt *pt,
static int intel_pt_synth_events(struct intel_pt *pt,
struct perf_session *session)
{
- struct perf_evlist *evlist = session->evlist;
- struct perf_evsel *evsel = intel_pt_evsel(pt, evlist);
+ struct evlist *evlist = session->evlist;
+ struct evsel *evsel = intel_pt_evsel(pt, evlist);
struct perf_event_attr attr;
u64 id;
int err;
@@ -2758,7 +2857,7 @@ static int intel_pt_synth_events(struct intel_pt *pt,
memset(&attr, 0, sizeof(struct perf_event_attr));
attr.size = sizeof(struct perf_event_attr);
attr.type = PERF_TYPE_HARDWARE;
- attr.sample_type = evsel->attr.sample_type & PERF_SAMPLE_MASK;
+ attr.sample_type = evsel->core.attr.sample_type & PERF_SAMPLE_MASK;
attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
PERF_SAMPLE_PERIOD;
if (pt->timeless_decoding)
@@ -2767,15 +2866,15 @@ static int intel_pt_synth_events(struct intel_pt *pt,
attr.sample_type |= PERF_SAMPLE_TIME;
if (!pt->per_cpu_mmaps)
attr.sample_type &= ~(u64)PERF_SAMPLE_CPU;
- attr.exclude_user = evsel->attr.exclude_user;
- attr.exclude_kernel = evsel->attr.exclude_kernel;
- attr.exclude_hv = evsel->attr.exclude_hv;
- attr.exclude_host = evsel->attr.exclude_host;
- attr.exclude_guest = evsel->attr.exclude_guest;
- attr.sample_id_all = evsel->attr.sample_id_all;
- attr.read_format = evsel->attr.read_format;
-
- id = evsel->id[0] + 1000000000;
+ attr.exclude_user = evsel->core.attr.exclude_user;
+ attr.exclude_kernel = evsel->core.attr.exclude_kernel;
+ attr.exclude_hv = evsel->core.attr.exclude_hv;
+ attr.exclude_host = evsel->core.attr.exclude_host;
+ attr.exclude_guest = evsel->core.attr.exclude_guest;
+ attr.sample_id_all = evsel->core.attr.sample_id_all;
+ attr.read_format = evsel->core.attr.read_format;
+
+ id = evsel->core.id[0] + 1000000000;
if (!id)
id = 1;
@@ -2857,7 +2956,7 @@ static int intel_pt_synth_events(struct intel_pt *pt,
id += 1;
}
- if (pt->synth_opts.pwr_events && (evsel->attr.config & 0x10)) {
+ if (pt->synth_opts.pwr_events && (evsel->core.attr.config & 0x10)) {
attr.config = PERF_SYNTH_INTEL_MWAIT;
err = intel_pt_synth_event(session, "mwait", &attr, id);
if (err)
@@ -2894,9 +2993,25 @@ static int intel_pt_synth_events(struct intel_pt *pt,
return 0;
}
-static struct perf_evsel *intel_pt_find_sched_switch(struct perf_evlist *evlist)
+static void intel_pt_setup_pebs_events(struct intel_pt *pt)
+{
+ struct evsel *evsel;
+
+ if (!pt->synth_opts.other_events)
+ return;
+
+ evlist__for_each_entry(pt->session->evlist, evsel) {
+ if (evsel->core.attr.aux_output && evsel->core.id) {
+ pt->sample_pebs = true;
+ pt->pebs_evsel = evsel;
+ return;
+ }
+ }
+}
+
+static struct evsel *intel_pt_find_sched_switch(struct evlist *evlist)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
evlist__for_each_entry_reverse(evlist, evsel) {
const char *name = perf_evsel__name(evsel);
@@ -2908,12 +3023,12 @@ static struct perf_evsel *intel_pt_find_sched_switch(struct perf_evlist *evlist)
return NULL;
}
-static bool intel_pt_find_switch(struct perf_evlist *evlist)
+static bool intel_pt_find_switch(struct evlist *evlist)
{
- struct perf_evsel *evsel;
+ struct evsel *evsel;
evlist__for_each_entry(evlist, evsel) {
- if (evsel->attr.context_switch)
+ if (evsel->core.attr.context_switch)
return true;
}
@@ -3028,7 +3143,7 @@ static const char * const intel_pt_info_fmts[] = {
[INTEL_PT_FILTER_STR_LEN] = " Filter string len. %"PRIu64"\n",
};
-static void intel_pt_print_info(u64 *arr, int start, int finish)
+static void intel_pt_print_info(__u64 *arr, int start, int finish)
{
int i;
@@ -3047,23 +3162,23 @@ static void intel_pt_print_info_str(const char *name, const char *str)
fprintf(stdout, " %-20s%s\n", name, str ? str : "");
}
-static bool intel_pt_has(struct auxtrace_info_event *auxtrace_info, int pos)
+static bool intel_pt_has(struct perf_record_auxtrace_info *auxtrace_info, int pos)
{
return auxtrace_info->header.size >=
- sizeof(struct auxtrace_info_event) + (sizeof(u64) * (pos + 1));
+ sizeof(struct perf_record_auxtrace_info) + (sizeof(u64) * (pos + 1));
}
int intel_pt_process_auxtrace_info(union perf_event *event,
struct perf_session *session)
{
- struct auxtrace_info_event *auxtrace_info = &event->auxtrace_info;
+ struct perf_record_auxtrace_info *auxtrace_info = &event->auxtrace_info;
size_t min_sz = sizeof(u64) * INTEL_PT_PER_CPU_MMAPS;
struct intel_pt *pt;
void *info_end;
- u64 *info;
+ __u64 *info;
int err;
- if (auxtrace_info->header.size < sizeof(struct auxtrace_info_event) +
+ if (auxtrace_info->header.size < sizeof(struct perf_record_auxtrace_info) +
min_sz)
return -EINVAL;
@@ -3161,7 +3276,7 @@ int intel_pt_process_auxtrace_info(union perf_event *event,
if (pt->timeless_decoding && !pt->tc.time_mult)
pt->tc.time_mult = 1;
pt->have_tsc = intel_pt_have_tsc(pt);
- pt->sampling_mode = false;
+ pt->sampling_mode = intel_pt_sampling_mode(pt);
pt->est_tsc = !pt->timeless_decoding;
pt->unknown_thread = thread__new(999999999, 999999999);
@@ -3181,13 +3296,15 @@ int intel_pt_process_auxtrace_info(union perf_event *event,
err = thread__set_comm(pt->unknown_thread, "unknown", 0);
if (err)
goto err_delete_thread;
- if (thread__init_map_groups(pt->unknown_thread, pt->machine)) {
+ if (thread__init_maps(pt->unknown_thread, pt->machine)) {
err = -ENOMEM;
goto err_delete_thread;
}
pt->auxtrace.process_event = intel_pt_process_event;
pt->auxtrace.process_auxtrace_event = intel_pt_process_auxtrace_event;
+ pt->auxtrace.queue_data = intel_pt_queue_data;
+ pt->auxtrace.dump_auxtrace_sample = intel_pt_dump_sample;
pt->auxtrace.flush_events = intel_pt_flush;
pt->auxtrace.free_events = intel_pt_free_events;
pt->auxtrace.free = intel_pt_free;
@@ -3263,7 +3380,12 @@ int intel_pt_process_auxtrace_info(union perf_event *event,
if (err)
goto err_delete_thread;
- err = auxtrace_queues__process_index(&pt->queues, session);
+ intel_pt_setup_pebs_events(pt);
+
+ if (pt->sampling_mode || list_empty(&session->auxtrace_index))
+ err = auxtrace_queue_data(session, true, true);
+ else
+ err = auxtrace_queues__process_index(&pt->queues, session);
if (err)
goto err_delete_thread;
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