mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-19 10:14:23 +08:00
perf/core improvements and fixes:
. Fix version when building out of tree, as when using one of these:
$ make help | grep perf
perf-tar-src-pkg - Build perf-3.12.0.tar source tarball
perf-targz-src-pkg - Build perf-3.12.0.tar.gz source tarball
perf-tarbz2-src-pkg - Build perf-3.12.0.tar.bz2 source tarball
perf-tarxz-src-pkg - Build perf-3.12.0.tar.xz source tarball
$
from David Ahern.
. Don't relookup fields by name in each sample in 'trace'.
. 'perf record' code cleanups, from David Ahern.
. Remove unneeded include in sort.h, from Rodrigo Campos.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
* Fix version when building out of tree, as when using one of these:
$ make help | grep perf
perf-tar-src-pkg - Build perf-3.12.0.tar source tarball
perf-targz-src-pkg - Build perf-3.12.0.tar.gz source tarball
perf-tarbz2-src-pkg - Build perf-3.12.0.tar.bz2 source tarball
perf-tarxz-src-pkg - Build perf-3.12.0.tar.xz source tarball
$
from David Ahern.
* Don't relookup fields by name in each sample in 'trace',
by Arnaldo Carvalho de Melo.
* 'perf record' code cleanups, from David Ahern.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar
commit
4d9218daae
@ -115,7 +115,9 @@ git --git-dir=$(srctree)/.git archive --prefix=$(perf-tar)/ \
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-o $(perf-tar).tar; \
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mkdir -p $(perf-tar); \
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git --git-dir=$(srctree)/.git rev-parse HEAD > $(perf-tar)/HEAD; \
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tar rf $(perf-tar).tar $(perf-tar)/HEAD; \
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(cd $(srctree)/tools/perf; \
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util/PERF-VERSION-GEN ../../$(perf-tar)/ 2>/dev/null); \
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tar rf $(perf-tar).tar $(perf-tar)/HEAD $(perf-tar)/PERF-VERSION-FILE; \
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rm -r $(perf-tar); \
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$(if $(findstring tar-src,$@),, \
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$(if $(findstring bz2,$@),bzip2, \
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@ -106,8 +106,8 @@ static int perf_event__repipe_sample(struct perf_tool *tool,
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struct perf_evsel *evsel,
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struct machine *machine)
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{
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if (evsel->handler.func) {
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inject_handler f = evsel->handler.func;
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if (evsel->handler) {
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inject_handler f = evsel->handler;
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return f(tool, event, sample, evsel, machine);
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}
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@ -383,11 +383,11 @@ static int __cmd_inject(struct perf_inject *inject)
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if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID"))
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return -EINVAL;
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evsel->handler.func = perf_inject__sched_switch;
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evsel->handler = perf_inject__sched_switch;
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} else if (!strcmp(name, "sched:sched_process_exit"))
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evsel->handler.func = perf_inject__sched_process_exit;
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evsel->handler = perf_inject__sched_process_exit;
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else if (!strncmp(name, "sched:sched_stat_", 17))
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evsel->handler.func = perf_inject__sched_stat;
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evsel->handler = perf_inject__sched_stat;
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}
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}
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@ -317,8 +317,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
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dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
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if (evsel->handler.func != NULL) {
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tracepoint_handler f = evsel->handler.func;
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if (evsel->handler != NULL) {
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tracepoint_handler f = evsel->handler;
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return f(evsel, sample);
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}
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@ -819,8 +819,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
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return -1;
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}
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if (evsel->handler.func != NULL) {
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tracepoint_handler f = evsel->handler.func;
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if (evsel->handler != NULL) {
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tracepoint_handler f = evsel->handler;
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return f(evsel, sample);
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}
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@ -74,14 +74,8 @@ struct perf_record {
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bool no_buildid;
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bool no_buildid_cache;
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long samples;
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off_t post_processing_offset;
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};
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static void advance_output(struct perf_record *rec, size_t size)
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{
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rec->bytes_written += size;
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}
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static int write_output(struct perf_record *rec, void *buf, size_t size)
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{
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struct perf_data_file *file = &rec->file;
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@ -252,13 +246,14 @@ static int process_buildids(struct perf_record *rec)
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{
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struct perf_data_file *file = &rec->file;
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struct perf_session *session = rec->session;
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u64 start = session->header.data_offset;
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u64 size = lseek(file->fd, 0, SEEK_CUR);
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if (size == 0)
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return 0;
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return __perf_session__process_events(session, rec->post_processing_offset,
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size - rec->post_processing_offset,
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return __perf_session__process_events(session, start,
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size - start,
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size, &build_id__mark_dso_hit_ops);
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}
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@ -342,9 +337,28 @@ out:
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return rc;
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}
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static void perf_record__init_features(struct perf_record *rec)
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{
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struct perf_evlist *evsel_list = rec->evlist;
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struct perf_session *session = rec->session;
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int feat;
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for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
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perf_header__set_feat(&session->header, feat);
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if (rec->no_buildid)
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perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
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if (!have_tracepoints(&evsel_list->entries))
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perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
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if (!rec->opts.branch_stack)
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perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
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}
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static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
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{
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int err, feat;
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int err;
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unsigned long waking = 0;
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const bool forks = argc > 0;
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struct machine *machine;
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@ -371,17 +385,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
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rec->session = session;
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for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
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perf_header__set_feat(&session->header, feat);
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if (rec->no_buildid)
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perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
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if (!have_tracepoints(&evsel_list->entries))
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perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
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if (!rec->opts.branch_stack)
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perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
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perf_record__init_features(rec);
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if (forks) {
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err = perf_evlist__prepare_workload(evsel_list, &opts->target,
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@ -425,8 +429,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
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goto out_delete_session;
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}
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rec->post_processing_offset = lseek(file->fd, 0, SEEK_CUR);
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machine = &session->machines.host;
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if (file->is_pipe) {
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@ -452,7 +454,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
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pr_err("Couldn't record tracing data.\n");
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goto out_delete_session;
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}
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advance_output(rec, err);
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rec->bytes_written += err;
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}
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}
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@ -1427,8 +1427,8 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_
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evsel->hists.stats.total_period += sample->period;
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hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
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if (evsel->handler.func != NULL) {
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tracepoint_handler f = evsel->handler.func;
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if (evsel->handler != NULL) {
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tracepoint_handler f = evsel->handler;
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err = f(tool, evsel, sample, machine);
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}
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@ -483,8 +483,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
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if (sample->cpu > numcpus)
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numcpus = sample->cpu;
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if (evsel->handler.func != NULL) {
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tracepoint_handler f = evsel->handler.func;
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if (evsel->handler != NULL) {
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tracepoint_handler f = evsel->handler;
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return f(evsel, sample);
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}
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@ -35,6 +35,189 @@
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# define MADV_UNMERGEABLE 13
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#endif
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struct tp_field {
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int offset;
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union {
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u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
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void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
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};
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};
|
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|
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#define TP_UINT_FIELD(bits) \
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static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
|
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{ \
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return *(u##bits *)(sample->raw_data + field->offset); \
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}
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TP_UINT_FIELD(8);
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TP_UINT_FIELD(16);
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TP_UINT_FIELD(32);
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TP_UINT_FIELD(64);
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#define TP_UINT_FIELD__SWAPPED(bits) \
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static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
|
||||
{ \
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||||
u##bits value = *(u##bits *)(sample->raw_data + field->offset); \
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||||
return bswap_##bits(value);\
|
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}
|
||||
|
||||
TP_UINT_FIELD__SWAPPED(16);
|
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TP_UINT_FIELD__SWAPPED(32);
|
||||
TP_UINT_FIELD__SWAPPED(64);
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|
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static int tp_field__init_uint(struct tp_field *field,
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||||
struct format_field *format_field,
|
||||
bool needs_swap)
|
||||
{
|
||||
field->offset = format_field->offset;
|
||||
|
||||
switch (format_field->size) {
|
||||
case 1:
|
||||
field->integer = tp_field__u8;
|
||||
break;
|
||||
case 2:
|
||||
field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
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||||
break;
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||||
case 4:
|
||||
field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
|
||||
break;
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||||
case 8:
|
||||
field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
|
||||
break;
|
||||
default:
|
||||
return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
|
||||
{
|
||||
return sample->raw_data + field->offset;
|
||||
}
|
||||
|
||||
static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field)
|
||||
{
|
||||
field->offset = format_field->offset;
|
||||
field->pointer = tp_field__ptr;
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct syscall_tp {
|
||||
struct tp_field id;
|
||||
union {
|
||||
struct tp_field args, ret;
|
||||
};
|
||||
};
|
||||
|
||||
static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel,
|
||||
struct tp_field *field,
|
||||
const char *name)
|
||||
{
|
||||
struct format_field *format_field = perf_evsel__field(evsel, name);
|
||||
|
||||
if (format_field == NULL)
|
||||
return -1;
|
||||
|
||||
return tp_field__init_uint(field, format_field, evsel->needs_swap);
|
||||
}
|
||||
|
||||
#define perf_evsel__init_sc_tp_uint_field(evsel, name) \
|
||||
({ struct syscall_tp *sc = evsel->priv;\
|
||||
perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); })
|
||||
|
||||
static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel,
|
||||
struct tp_field *field,
|
||||
const char *name)
|
||||
{
|
||||
struct format_field *format_field = perf_evsel__field(evsel, name);
|
||||
|
||||
if (format_field == NULL)
|
||||
return -1;
|
||||
|
||||
return tp_field__init_ptr(field, format_field);
|
||||
}
|
||||
|
||||
#define perf_evsel__init_sc_tp_ptr_field(evsel, name) \
|
||||
({ struct syscall_tp *sc = evsel->priv;\
|
||||
perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); })
|
||||
|
||||
static void perf_evsel__delete_priv(struct perf_evsel *evsel)
|
||||
{
|
||||
free(evsel->priv);
|
||||
evsel->priv = NULL;
|
||||
perf_evsel__delete(evsel);
|
||||
}
|
||||
|
||||
static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction,
|
||||
void *handler, int idx)
|
||||
{
|
||||
struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction, idx);
|
||||
|
||||
if (evsel) {
|
||||
evsel->priv = malloc(sizeof(struct syscall_tp));
|
||||
|
||||
if (evsel->priv == NULL)
|
||||
goto out_delete;
|
||||
|
||||
if (perf_evsel__init_sc_tp_uint_field(evsel, id))
|
||||
goto out_delete;
|
||||
|
||||
evsel->handler = handler;
|
||||
}
|
||||
|
||||
return evsel;
|
||||
|
||||
out_delete:
|
||||
perf_evsel__delete_priv(evsel);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
#define perf_evsel__sc_tp_uint(evsel, name, sample) \
|
||||
({ struct syscall_tp *fields = evsel->priv; \
|
||||
fields->name.integer(&fields->name, sample); })
|
||||
|
||||
#define perf_evsel__sc_tp_ptr(evsel, name, sample) \
|
||||
({ struct syscall_tp *fields = evsel->priv; \
|
||||
fields->name.pointer(&fields->name, sample); })
|
||||
|
||||
static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
|
||||
void *sys_enter_handler,
|
||||
void *sys_exit_handler)
|
||||
{
|
||||
int ret = -1;
|
||||
int idx = evlist->nr_entries;
|
||||
struct perf_evsel *sys_enter, *sys_exit;
|
||||
|
||||
sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler, idx++);
|
||||
if (sys_enter == NULL)
|
||||
goto out;
|
||||
|
||||
if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
|
||||
goto out_delete_sys_enter;
|
||||
|
||||
sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler, idx++);
|
||||
if (sys_exit == NULL)
|
||||
goto out_delete_sys_enter;
|
||||
|
||||
if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
|
||||
goto out_delete_sys_exit;
|
||||
|
||||
perf_evlist__add(evlist, sys_enter);
|
||||
perf_evlist__add(evlist, sys_exit);
|
||||
|
||||
ret = 0;
|
||||
out:
|
||||
return ret;
|
||||
|
||||
out_delete_sys_exit:
|
||||
perf_evsel__delete_priv(sys_exit);
|
||||
out_delete_sys_enter:
|
||||
perf_evsel__delete_priv(sys_enter);
|
||||
goto out;
|
||||
}
|
||||
|
||||
|
||||
struct syscall_arg {
|
||||
unsigned long val;
|
||||
struct thread *thread;
|
||||
@ -1392,7 +1575,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
|
||||
void *args;
|
||||
size_t printed = 0;
|
||||
struct thread *thread;
|
||||
int id = perf_evsel__intval(evsel, sample, "id");
|
||||
int id = perf_evsel__sc_tp_uint(evsel, id, sample);
|
||||
struct syscall *sc = trace__syscall_info(trace, evsel, id);
|
||||
struct thread_trace *ttrace;
|
||||
|
||||
@ -1407,12 +1590,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
|
||||
if (ttrace == NULL)
|
||||
return -1;
|
||||
|
||||
args = perf_evsel__rawptr(evsel, sample, "args");
|
||||
if (args == NULL) {
|
||||
fprintf(trace->output, "Problems reading syscall arguments\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
args = perf_evsel__sc_tp_ptr(evsel, args, sample);
|
||||
ttrace = thread->priv;
|
||||
|
||||
if (ttrace->entry_str == NULL) {
|
||||
@ -1445,7 +1623,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
|
||||
int ret;
|
||||
u64 duration = 0;
|
||||
struct thread *thread;
|
||||
int id = perf_evsel__intval(evsel, sample, "id");
|
||||
int id = perf_evsel__sc_tp_uint(evsel, id, sample);
|
||||
struct syscall *sc = trace__syscall_info(trace, evsel, id);
|
||||
struct thread_trace *ttrace;
|
||||
|
||||
@ -1463,7 +1641,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
|
||||
if (trace->summary)
|
||||
thread__update_stats(ttrace, id, sample);
|
||||
|
||||
ret = perf_evsel__intval(evsel, sample, "ret");
|
||||
ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
|
||||
|
||||
if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
|
||||
trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
|
||||
@ -1570,7 +1748,7 @@ static int trace__process_sample(struct perf_tool *tool,
|
||||
struct trace *trace = container_of(tool, struct trace, tool);
|
||||
int err = 0;
|
||||
|
||||
tracepoint_handler handler = evsel->handler.func;
|
||||
tracepoint_handler handler = evsel->handler;
|
||||
|
||||
if (skip_sample(trace, sample))
|
||||
return 0;
|
||||
@ -1656,7 +1834,7 @@ static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
|
||||
return;
|
||||
}
|
||||
|
||||
evsel->handler.func = trace__vfs_getname;
|
||||
evsel->handler = trace__vfs_getname;
|
||||
perf_evlist__add(evlist, evsel);
|
||||
}
|
||||
|
||||
@ -1675,8 +1853,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_enter", trace__sys_enter) ||
|
||||
perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit))
|
||||
if (perf_evlist__add_syscall_newtp(evlist, trace__sys_enter, trace__sys_exit))
|
||||
goto out_error_tp;
|
||||
|
||||
perf_evlist__add_vfs_getname(evlist);
|
||||
@ -1768,7 +1945,7 @@ again:
|
||||
goto next_event;
|
||||
}
|
||||
|
||||
handler = evsel->handler.func;
|
||||
handler = evsel->handler;
|
||||
handler(trace, evsel, &sample);
|
||||
next_event:
|
||||
perf_evlist__mmap_consume(evlist, i);
|
||||
|
||||
@ -19,6 +19,9 @@ if test -d ../../.git -o -f ../../.git
|
||||
then
|
||||
TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
|
||||
CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
|
||||
elif test -f ../../PERF-VERSION-FILE
|
||||
then
|
||||
TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g')
|
||||
fi
|
||||
if test -z "$TAG"
|
||||
then
|
||||
|
||||
@ -255,7 +255,7 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist,
|
||||
if (evsel == NULL)
|
||||
return -1;
|
||||
|
||||
evsel->handler.func = handler;
|
||||
evsel->handler = handler;
|
||||
perf_evlist__add(evlist, evsel);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -74,10 +74,7 @@ struct perf_evsel {
|
||||
off_t id_offset;
|
||||
};
|
||||
struct cgroup_sel *cgrp;
|
||||
struct {
|
||||
void *func;
|
||||
void *data;
|
||||
} handler;
|
||||
void *handler;
|
||||
struct cpu_map *cpus;
|
||||
unsigned int sample_size;
|
||||
int id_pos;
|
||||
|
||||
@ -1650,9 +1650,9 @@ int __perf_session__set_tracepoints_handlers(struct perf_session *session,
|
||||
continue;
|
||||
|
||||
err = -EEXIST;
|
||||
if (evsel->handler.func != NULL)
|
||||
if (evsel->handler != NULL)
|
||||
goto out;
|
||||
evsel->handler.func = assocs[i].handler;
|
||||
evsel->handler = assocs[i].handler;
|
||||
}
|
||||
|
||||
err = 0;
|
||||
|
||||
@ -22,7 +22,6 @@
|
||||
#include "parse-events.h"
|
||||
|
||||
#include "thread.h"
|
||||
#include "sort.h"
|
||||
|
||||
extern regex_t parent_regex;
|
||||
extern const char *sort_order;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user