From 47fbe53bef3b219a365ebf3eca949d6cd4c5291c Mon Sep 17 00:00:00 2001 From: David Ahern Date: Sun, 13 Nov 2011 10:45:27 -0700 Subject: perf session: Fix crash with invalid CPU list commit 5d67be9 added the option to specify a range of CPUs of interest, but does not catch an invalid CPU list: $ perf script -c foo Segmentation fault (core dumped) Cc: Anton Blanchard Link: http://lkml.kernel.org/r/1321206327-5881-1-git-send-email-dsahern@gmail.com Signed-off-by: David Ahern Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 85c1e6b76f0a..0f4555ce9063 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1333,6 +1333,10 @@ int perf_session__cpu_bitmap(struct perf_session *session, } map = cpu_map__new(cpu_list); + if (map == NULL) { + pr_err("Invalid cpu_list\n"); + return -1; + } for (i = 0; i < map->nr; i++) { int cpu = map->map[i]; -- cgit v1.2.3 From b424eba27160dd19577896d4520b8eebabed919f Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 9 Nov 2011 13:24:25 -0200 Subject: perf session: Move threads to struct machine The 'machine' abstraction was introduced with 'perf kvm' where we could have samples for the host and multiple guests, but at the time we ended up keeping the list of all machines threads all in session->host_machine. Move the threads rb_tree to struct machine to separate the namespaces. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-mdg7sm6j3va09vtgj49gbsrp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 47 ++++++++++++++++++++++++++++++++++++++++------- 1 file changed, 40 insertions(+), 7 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 85c1e6b76f0a..a76666f17767 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -139,9 +139,6 @@ struct perf_session *perf_session__new(const char *filename, int mode, goto out; memcpy(self->filename, filename, len); - self->threads = RB_ROOT; - INIT_LIST_HEAD(&self->dead_threads); - self->last_match = NULL; /* * On 64bit we can mmap the data file in one go. No need for tiny mmap * slices. On 32bit we use 32MB. @@ -184,17 +181,22 @@ out_delete: return NULL; } -static void perf_session__delete_dead_threads(struct perf_session *self) +static void machine__delete_dead_threads(struct machine *machine) { struct thread *n, *t; - list_for_each_entry_safe(t, n, &self->dead_threads, node) { + list_for_each_entry_safe(t, n, &machine->dead_threads, node) { list_del(&t->node); thread__delete(t); } } -static void perf_session__delete_threads(struct perf_session *self) +static void perf_session__delete_dead_threads(struct perf_session *session) +{ + machine__delete_dead_threads(&session->host_machine); +} + +static void machine__delete_threads(struct machine *self) { struct rb_node *nd = rb_first(&self->threads); @@ -207,6 +209,11 @@ static void perf_session__delete_threads(struct perf_session *self) } } +static void perf_session__delete_threads(struct perf_session *session) +{ + machine__delete_threads(&session->host_machine); +} + void perf_session__delete(struct perf_session *self) { perf_session__destroy_kernel_maps(self); @@ -217,7 +224,7 @@ void perf_session__delete(struct perf_session *self) free(self); } -void perf_session__remove_thread(struct perf_session *self, struct thread *th) +void machine__remove_thread(struct machine *self, struct thread *th) { self->last_match = NULL; rb_erase(&th->rb_node, &self->threads); @@ -884,6 +891,11 @@ void perf_event_header__bswap(struct perf_event_header *self) self->size = bswap_16(self->size); } +struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) +{ + return machine__findnew_thread(&session->host_machine, pid); +} + static struct thread *perf_session__register_idle_thread(struct perf_session *self) { struct thread *thread = perf_session__findnew(self, 0); @@ -1224,6 +1236,27 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) return ret; } +size_t perf_session__fprintf(struct perf_session *session, FILE *fp) +{ + /* + * FIXME: Here we have to actually print all the machines in this + * session, not just the host... + */ + return machine__fprintf(&session->host_machine, fp); +} + +void perf_session__remove_thread(struct perf_session *session, + struct thread *th) +{ + /* + * FIXME: This one makes no sense, we need to remove the thread from + * the machine it belongs to, perf_session can have many machines, so + * doing it always on ->host_machine is wrong. Fix when auditing all + * the 'perf kvm' code. + */ + machine__remove_thread(&session->host_machine, th); +} + struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, unsigned int type) { -- cgit v1.2.3 From 81e36bffad95e015af9741b5b1ee16afe08aab05 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 11 Nov 2011 22:28:50 -0200 Subject: perf evlist: Introduce id_hdr_size method out of perf_session We will need this when not using perf_session in cases like 'perf top' and strace where no perf.data file is created nor consumed. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-za923wjc41q5xot5vrhuhj3j@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 29 +---------------------------- 1 file changed, 1 insertion(+), 28 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index a76666f17767..675e080f66b6 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -78,39 +78,12 @@ out_close: return -1; } -static void perf_session__id_header_size(struct perf_session *session) -{ - struct perf_sample *data; - u64 sample_type = session->sample_type; - u16 size = 0; - - if (!session->sample_id_all) - goto out; - - if (sample_type & PERF_SAMPLE_TID) - size += sizeof(data->tid) * 2; - - if (sample_type & PERF_SAMPLE_TIME) - size += sizeof(data->time); - - if (sample_type & PERF_SAMPLE_ID) - size += sizeof(data->id); - - if (sample_type & PERF_SAMPLE_STREAM_ID) - size += sizeof(data->stream_id); - - if (sample_type & PERF_SAMPLE_CPU) - size += sizeof(data->cpu) * 2; -out: - session->id_hdr_size = size; -} - void perf_session__update_sample_type(struct perf_session *self) { self->sample_type = perf_evlist__sample_type(self->evlist); self->sample_size = __perf_evsel__sample_size(self->sample_type); self->sample_id_all = perf_evlist__sample_id_all(self->evlist); - perf_session__id_header_size(self); + self->id_hdr_size = perf_evlist__id_hdr_size(self->evlist); } int perf_session__create_kernel_maps(struct perf_session *self) -- cgit v1.2.3 From 10d0f086df77f3ff259b46cb501362dbaf2c7989 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 11 Nov 2011 22:45:41 -0200 Subject: perf event: perf_event_ops->attr() manipulates only an evlist Removing another case where a perf_session is required when processing events. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-ug1wtjbnva4bxwknflkkrlrh@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 675e080f66b6..6e7d5f54b37d 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -277,6 +277,13 @@ static int process_event_synth_stub(union perf_event *event __used, return 0; } +static int process_event_synth_attr_stub(union perf_event *event __used, + struct perf_evlist **pevlist __used) +{ + dump_printf(": unhandled!\n"); + return 0; +} + static int process_event_sample_stub(union perf_event *event __used, struct perf_sample *sample __used, struct perf_evsel *evsel __used, @@ -327,7 +334,7 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) if (handler->unthrottle == NULL) handler->unthrottle = process_event_stub; if (handler->attr == NULL) - handler->attr = process_event_synth_stub; + handler->attr = process_event_synth_attr_stub; if (handler->event_type == NULL) handler->event_type = process_event_synth_stub; if (handler->tracing_data == NULL) @@ -794,12 +801,17 @@ static int perf_session__preprocess_sample(struct perf_session *session, static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, struct perf_event_ops *ops, u64 file_offset) { + int err; + dump_event(session, event, file_offset, NULL); /* These events are processed right away */ switch (event->header.type) { case PERF_RECORD_HEADER_ATTR: - return ops->attr(event, session); + err = ops->attr(event, &session->evlist); + if (err == 0) + perf_session__update_sample_type(session); + return err; case PERF_RECORD_HEADER_EVENT_TYPE: return ops->event_type(event, session); case PERF_RECORD_HEADER_TRACING_DATA: -- cgit v1.2.3 From 246d4ce8107ea16521384c8b2a8fcff354ef2b7c Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 11 Nov 2011 23:10:26 -0200 Subject: perf session: Remove superfluous callchain_cursor member Since we have it in evsel->hists.callchain_cursor, remove it from perf_session. One more step in disentangling several places from requiring a perf_session pointer. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-rxr5dj3di7ckyfmnz0naku1z@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 6e7d5f54b37d..734358b51ed1 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -216,7 +216,7 @@ static bool symbol__match_parent_regex(struct symbol *sym) return 0; } -int perf_session__resolve_callchain(struct perf_session *self, +int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel, struct thread *thread, struct ip_callchain *chain, struct symbol **parent) @@ -225,7 +225,7 @@ int perf_session__resolve_callchain(struct perf_session *self, unsigned int i; int err; - callchain_cursor_reset(&self->callchain_cursor); + callchain_cursor_reset(&evsel->hists.callchain_cursor); for (i = 0; i < chain->nr; i++) { u64 ip; @@ -261,7 +261,7 @@ int perf_session__resolve_callchain(struct perf_session *self, break; } - err = callchain_cursor_append(&self->callchain_cursor, + err = callchain_cursor_append(&evsel->hists.callchain_cursor, ip, al.map, al.sym); if (err) return err; @@ -1254,14 +1254,14 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, return NULL; } -void perf_session__print_ip(union perf_event *event, +void perf_session__print_ip(union perf_event *event, struct perf_evsel *evsel, struct perf_sample *sample, struct perf_session *session, int print_sym, int print_dso) { struct addr_location al; const char *symname, *dsoname; - struct callchain_cursor *cursor = &session->callchain_cursor; + struct callchain_cursor *cursor = &evsel->hists.callchain_cursor; struct callchain_cursor_node *node; if (perf_event__preprocess_sample(event, session, &al, sample, @@ -1273,7 +1273,7 @@ void perf_session__print_ip(union perf_event *event, if (symbol_conf.use_callchain && sample->callchain) { - if (perf_session__resolve_callchain(session, al.thread, + if (perf_session__resolve_callchain(session, evsel, al.thread, sample->callchain, NULL) != 0) { if (verbose) error("Failed to resolve callchain. Skipping\n"); -- cgit v1.2.3 From d20deb64e0490ee9442b5181bc08a62d2cadcb90 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 25 Nov 2011 08:19:45 -0200 Subject: perf tools: Pass tool context in the the perf_event_ops functions So that we don't need to have that many globals. Next steps will remove the 'session' pointer, that in most cases is not needed. Then we can rename perf_event_ops to 'perf_tool' that better describes this class hierarchy. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-wp4djox7x6w1i2bab1pt4xxp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 60 +++++++++++++++++++++++++++-------------------- 1 file changed, 35 insertions(+), 25 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 734358b51ed1..a36023a66779 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -270,13 +270,21 @@ int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel return 0; } -static int process_event_synth_stub(union perf_event *event __used, +static int process_event_synth_stub(struct perf_event_ops *ops __used, + union perf_event *event __used, struct perf_session *session __used) { dump_printf(": unhandled!\n"); return 0; } +static int process_event_synth_tracing_data_stub(union perf_event *event __used, + struct perf_session *session __used) +{ + dump_printf(": unhandled!\n"); + return 0; +} + static int process_event_synth_attr_stub(union perf_event *event __used, struct perf_evlist **pevlist __used) { @@ -284,7 +292,8 @@ static int process_event_synth_attr_stub(union perf_event *event __used, return 0; } -static int process_event_sample_stub(union perf_event *event __used, +static int process_event_sample_stub(struct perf_event_ops *ops __used, + union perf_event *event __used, struct perf_sample *sample __used, struct perf_evsel *evsel __used, struct perf_session *session __used) @@ -293,7 +302,8 @@ static int process_event_sample_stub(union perf_event *event __used, return 0; } -static int process_event_stub(union perf_event *event __used, +static int process_event_stub(struct perf_event_ops *ops __used, + union perf_event *event __used, struct perf_sample *sample __used, struct perf_session *session __used) { @@ -301,17 +311,17 @@ static int process_event_stub(union perf_event *event __used, return 0; } -static int process_finished_round_stub(union perf_event *event __used, - struct perf_session *session __used, - struct perf_event_ops *ops __used) +static int process_finished_round_stub(struct perf_event_ops *ops __used, + union perf_event *event __used, + struct perf_session *session __used) { dump_printf(": unhandled!\n"); return 0; } -static int process_finished_round(union perf_event *event, - struct perf_session *session, - struct perf_event_ops *ops); +static int process_finished_round(struct perf_event_ops *ops, + union perf_event *event, + struct perf_session *session); static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) { @@ -338,7 +348,7 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) if (handler->event_type == NULL) handler->event_type = process_event_synth_stub; if (handler->tracing_data == NULL) - handler->tracing_data = process_event_synth_stub; + handler->tracing_data = process_event_synth_tracing_data_stub; if (handler->build_id == NULL) handler->build_id = process_event_synth_stub; if (handler->finished_round == NULL) { @@ -565,9 +575,9 @@ static void flush_sample_queue(struct perf_session *s, * Flush every events below timestamp 7 * etc... */ -static int process_finished_round(union perf_event *event __used, - struct perf_session *session, - struct perf_event_ops *ops) +static int process_finished_round(struct perf_event_ops *ops, + union perf_event *event __used, + struct perf_session *session) { flush_sample_queue(session, ops); session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; @@ -759,23 +769,23 @@ static int perf_session_deliver_event(struct perf_session *session, ++session->hists.stats.nr_unknown_id; return -1; } - return ops->sample(event, sample, evsel, session); + return ops->sample(ops, event, sample, evsel, session); case PERF_RECORD_MMAP: - return ops->mmap(event, sample, session); + return ops->mmap(ops, event, sample, session); case PERF_RECORD_COMM: - return ops->comm(event, sample, session); + return ops->comm(ops, event, sample, session); case PERF_RECORD_FORK: - return ops->fork(event, sample, session); + return ops->fork(ops, event, sample, session); case PERF_RECORD_EXIT: - return ops->exit(event, sample, session); + return ops->exit(ops, event, sample, session); case PERF_RECORD_LOST: - return ops->lost(event, sample, session); + return ops->lost(ops, event, sample, session); case PERF_RECORD_READ: - return ops->read(event, sample, session); + return ops->read(ops, event, sample, session); case PERF_RECORD_THROTTLE: - return ops->throttle(event, sample, session); + return ops->throttle(ops, event, sample, session); case PERF_RECORD_UNTHROTTLE: - return ops->unthrottle(event, sample, session); + return ops->unthrottle(ops, event, sample, session); default: ++session->hists.stats.nr_unknown_events; return -1; @@ -813,15 +823,15 @@ static int perf_session__process_user_event(struct perf_session *session, union perf_session__update_sample_type(session); return err; case PERF_RECORD_HEADER_EVENT_TYPE: - return ops->event_type(event, session); + return ops->event_type(ops, event, session); case PERF_RECORD_HEADER_TRACING_DATA: /* setup for reading amidst mmap */ lseek(session->fd, file_offset, SEEK_SET); return ops->tracing_data(event, session); case PERF_RECORD_HEADER_BUILD_ID: - return ops->build_id(event, session); + return ops->build_id(ops, event, session); case PERF_RECORD_FINISHED_ROUND: - return ops->finished_round(event, session, ops); + return ops->finished_round(ops, event, session); default: return -EINVAL; } -- cgit v1.2.3 From 743eb868657bdb1b26c7b24077ca21c67c82c777 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 28 Nov 2011 07:56:39 -0200 Subject: perf tools: Resolve machine earlier and pass it to perf_event_ops Reducing the exposure of perf_session further, so that we can use the classes in cases where no perf.data file is created. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-stua66dcscsezzrcdugvbmvd@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 91 +++++++++++++++++++++++++++-------------------- 1 file changed, 53 insertions(+), 38 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index a36023a66779..be33606386bf 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -84,6 +84,7 @@ void perf_session__update_sample_type(struct perf_session *self) self->sample_size = __perf_evsel__sample_size(self->sample_type); self->sample_id_all = perf_evlist__sample_id_all(self->evlist); self->id_hdr_size = perf_evlist__id_hdr_size(self->evlist); + self->host_machine.id_hdr_size = self->id_hdr_size; } int perf_session__create_kernel_maps(struct perf_session *self) @@ -216,10 +217,10 @@ static bool symbol__match_parent_regex(struct symbol *sym) return 0; } -int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel, - struct thread *thread, - struct ip_callchain *chain, - struct symbol **parent) +int machine__resolve_callchain(struct machine *self, struct perf_evsel *evsel, + struct thread *thread, + struct ip_callchain *chain, + struct symbol **parent) { u8 cpumode = PERF_RECORD_MISC_USER; unsigned int i; @@ -252,7 +253,7 @@ int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel al.filtered = false; thread__find_addr_location(thread, self, cpumode, - MAP__FUNCTION, thread->pid, ip, &al, NULL); + MAP__FUNCTION, ip, &al, NULL); if (al.sym != NULL) { if (sort__has_parent && !*parent && symbol__match_parent_regex(al.sym)) @@ -270,14 +271,6 @@ int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel return 0; } -static int process_event_synth_stub(struct perf_event_ops *ops __used, - union perf_event *event __used, - struct perf_session *session __used) -{ - dump_printf(": unhandled!\n"); - return 0; -} - static int process_event_synth_tracing_data_stub(union perf_event *event __used, struct perf_session *session __used) { @@ -296,7 +289,7 @@ static int process_event_sample_stub(struct perf_event_ops *ops __used, union perf_event *event __used, struct perf_sample *sample __used, struct perf_evsel *evsel __used, - struct perf_session *session __used) + struct machine *machine __used) { dump_printf(": unhandled!\n"); return 0; @@ -305,7 +298,7 @@ static int process_event_sample_stub(struct perf_event_ops *ops __used, static int process_event_stub(struct perf_event_ops *ops __used, union perf_event *event __used, struct perf_sample *sample __used, - struct perf_session *session __used) + struct machine *machine __used) { dump_printf(": unhandled!\n"); return 0; @@ -313,7 +306,14 @@ static int process_event_stub(struct perf_event_ops *ops __used, static int process_finished_round_stub(struct perf_event_ops *ops __used, union perf_event *event __used, - struct perf_session *session __used) + struct perf_session *perf_session __used) +{ + dump_printf(": unhandled!\n"); + return 0; +} + +static int process_event_type_stub(struct perf_event_ops *ops __used, + union perf_event *event __used) { dump_printf(": unhandled!\n"); return 0; @@ -338,7 +338,7 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) if (handler->lost == NULL) handler->lost = perf_event__process_lost; if (handler->read == NULL) - handler->read = process_event_stub; + handler->read = process_event_sample_stub; if (handler->throttle == NULL) handler->throttle = process_event_stub; if (handler->unthrottle == NULL) @@ -346,11 +346,11 @@ static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) if (handler->attr == NULL) handler->attr = process_event_synth_attr_stub; if (handler->event_type == NULL) - handler->event_type = process_event_synth_stub; + handler->event_type = process_event_type_stub; if (handler->tracing_data == NULL) handler->tracing_data = process_event_synth_tracing_data_stub; if (handler->build_id == NULL) - handler->build_id = process_event_synth_stub; + handler->build_id = process_finished_round_stub; if (handler->finished_round == NULL) { if (handler->ordered_samples) handler->finished_round = process_finished_round; @@ -734,6 +734,18 @@ static void dump_sample(struct perf_session *session, union perf_event *event, callchain__printf(sample); } +static struct machine * + perf_session__find_machine_for_cpumode(struct perf_session *session, + union perf_event *event) +{ + const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; + + if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) + return perf_session__find_machine(session, event->ip.pid); + + return perf_session__find_host_machine(session); +} + static int perf_session_deliver_event(struct perf_session *session, union perf_event *event, struct perf_sample *sample, @@ -741,6 +753,7 @@ static int perf_session_deliver_event(struct perf_session *session, u64 file_offset) { struct perf_evsel *evsel; + struct machine *machine; dump_event(session, event, file_offset, sample); @@ -762,6 +775,8 @@ static int perf_session_deliver_event(struct perf_session *session, hists__inc_nr_events(&evsel->hists, event->header.type); } + machine = perf_session__find_machine_for_cpumode(session, event); + switch (event->header.type) { case PERF_RECORD_SAMPLE: dump_sample(session, event, sample); @@ -769,23 +784,25 @@ static int perf_session_deliver_event(struct perf_session *session, ++session->hists.stats.nr_unknown_id; return -1; } - return ops->sample(ops, event, sample, evsel, session); + return ops->sample(ops, event, sample, evsel, machine); case PERF_RECORD_MMAP: - return ops->mmap(ops, event, sample, session); + return ops->mmap(ops, event, sample, machine); case PERF_RECORD_COMM: - return ops->comm(ops, event, sample, session); + return ops->comm(ops, event, sample, machine); case PERF_RECORD_FORK: - return ops->fork(ops, event, sample, session); + return ops->fork(ops, event, sample, machine); case PERF_RECORD_EXIT: - return ops->exit(ops, event, sample, session); + return ops->exit(ops, event, sample, machine); case PERF_RECORD_LOST: - return ops->lost(ops, event, sample, session); + if (ops->lost == perf_event__process_lost) + session->hists.stats.total_lost += event->lost.lost; + return ops->lost(ops, event, sample, machine); case PERF_RECORD_READ: - return ops->read(ops, event, sample, session); + return ops->read(ops, event, sample, evsel, machine); case PERF_RECORD_THROTTLE: - return ops->throttle(ops, event, sample, session); + return ops->throttle(ops, event, sample, machine); case PERF_RECORD_UNTHROTTLE: - return ops->unthrottle(ops, event, sample, session); + return ops->unthrottle(ops, event, sample, machine); default: ++session->hists.stats.nr_unknown_events; return -1; @@ -823,7 +840,7 @@ static int perf_session__process_user_event(struct perf_session *session, union perf_session__update_sample_type(session); return err; case PERF_RECORD_HEADER_EVENT_TYPE: - return ops->event_type(ops, event, session); + return ops->event_type(ops, event); case PERF_RECORD_HEADER_TRACING_DATA: /* setup for reading amidst mmap */ lseek(session->fd, file_offset, SEEK_SET); @@ -1170,9 +1187,8 @@ bool perf_session__has_traces(struct perf_session *self, const char *msg) return true; } -int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps, - const char *symbol_name, - u64 addr) +int maps__set_kallsyms_ref_reloc_sym(struct map **maps, + const char *symbol_name, u64 addr) { char *bracket; enum map_type i; @@ -1264,17 +1280,16 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, return NULL; } -void perf_session__print_ip(union perf_event *event, struct perf_evsel *evsel, - struct perf_sample *sample, - struct perf_session *session, - int print_sym, int print_dso) +void perf_event__print_ip(union perf_event *event, struct perf_sample *sample, + struct machine *machine, struct perf_evsel *evsel, + int print_sym, int print_dso) { struct addr_location al; const char *symname, *dsoname; struct callchain_cursor *cursor = &evsel->hists.callchain_cursor; struct callchain_cursor_node *node; - if (perf_event__preprocess_sample(event, session, &al, sample, + if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) { error("problem processing %d event, skipping it.\n", event->header.type); @@ -1283,7 +1298,7 @@ void perf_session__print_ip(union perf_event *event, struct perf_evsel *evsel, if (symbol_conf.use_callchain && sample->callchain) { - if (perf_session__resolve_callchain(session, evsel, al.thread, + if (machine__resolve_callchain(machine, evsel, al.thread, sample->callchain, NULL) != 0) { if (verbose) error("Failed to resolve callchain. Skipping\n"); -- cgit v1.2.3 From 45694aa7702bc44d538a3bcb51bb2bb96cf190c0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 28 Nov 2011 08:30:20 -0200 Subject: perf tools: Rename perf_event_ops to perf_tool To better reflect that it became the base class for all tools, that must be in each tool struct and where common stuff will be put. Cc: David Ahern Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-qgpc4msetqlwr8y2k7537cxe@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 163 +++++++++++++++++++++++----------------------- 1 file changed, 82 insertions(+), 81 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index be33606386bf..7d159088c4ac 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -10,6 +10,7 @@ #include "evlist.h" #include "evsel.h" #include "session.h" +#include "tool.h" #include "sort.h" #include "util.h" #include "cpumap.h" @@ -104,7 +105,7 @@ static void perf_session__destroy_kernel_maps(struct perf_session *self) struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe, - struct perf_event_ops *ops) + struct perf_tool *tool) { size_t len = filename ? strlen(filename) + 1 : 0; struct perf_session *self = zalloc(sizeof(*self) + len); @@ -142,10 +143,10 @@ struct perf_session *perf_session__new(const char *filename, int mode, goto out_delete; } - if (ops && ops->ordering_requires_timestamps && - ops->ordered_samples && !self->sample_id_all) { + if (tool && tool->ordering_requires_timestamps && + tool->ordered_samples && !self->sample_id_all) { dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); - ops->ordered_samples = false; + tool->ordered_samples = false; } out: @@ -285,7 +286,7 @@ static int process_event_synth_attr_stub(union perf_event *event __used, return 0; } -static int process_event_sample_stub(struct perf_event_ops *ops __used, +static int process_event_sample_stub(struct perf_tool *tool __used, union perf_event *event __used, struct perf_sample *sample __used, struct perf_evsel *evsel __used, @@ -295,7 +296,7 @@ static int process_event_sample_stub(struct perf_event_ops *ops __used, return 0; } -static int process_event_stub(struct perf_event_ops *ops __used, +static int process_event_stub(struct perf_tool *tool __used, union perf_event *event __used, struct perf_sample *sample __used, struct machine *machine __used) @@ -304,7 +305,7 @@ static int process_event_stub(struct perf_event_ops *ops __used, return 0; } -static int process_finished_round_stub(struct perf_event_ops *ops __used, +static int process_finished_round_stub(struct perf_tool *tool __used, union perf_event *event __used, struct perf_session *perf_session __used) { @@ -312,50 +313,50 @@ static int process_finished_round_stub(struct perf_event_ops *ops __used, return 0; } -static int process_event_type_stub(struct perf_event_ops *ops __used, +static int process_event_type_stub(struct perf_tool *tool __used, union perf_event *event __used) { dump_printf(": unhandled!\n"); return 0; } -static int process_finished_round(struct perf_event_ops *ops, +static int process_finished_round(struct perf_tool *tool, union perf_event *event, struct perf_session *session); -static void perf_event_ops__fill_defaults(struct perf_event_ops *handler) +static void perf_tool__fill_defaults(struct perf_tool *tool) { - if (handler->sample == NULL) - handler->sample = process_event_sample_stub; - if (handler->mmap == NULL) - handler->mmap = process_event_stub; - if (handler->comm == NULL) - handler->comm = process_event_stub; - if (handler->fork == NULL) - handler->fork = process_event_stub; - if (handler->exit == NULL) - handler->exit = process_event_stub; - if (handler->lost == NULL) - handler->lost = perf_event__process_lost; - if (handler->read == NULL) - handler->read = process_event_sample_stub; - if (handler->throttle == NULL) - handler->throttle = process_event_stub; - if (handler->unthrottle == NULL) - handler->unthrottle = process_event_stub; - if (handler->attr == NULL) - handler->attr = process_event_synth_attr_stub; - if (handler->event_type == NULL) - handler->event_type = process_event_type_stub; - if (handler->tracing_data == NULL) - handler->tracing_data = process_event_synth_tracing_data_stub; - if (handler->build_id == NULL) - handler->build_id = process_finished_round_stub; - if (handler->finished_round == NULL) { - if (handler->ordered_samples) - handler->finished_round = process_finished_round; + if (tool->sample == NULL) + tool->sample = process_event_sample_stub; + if (tool->mmap == NULL) + tool->mmap = process_event_stub; + if (tool->comm == NULL) + tool->comm = process_event_stub; + if (tool->fork == NULL) + tool->fork = process_event_stub; + if (tool->exit == NULL) + tool->exit = process_event_stub; + if (tool->lost == NULL) + tool->lost = perf_event__process_lost; + if (tool->read == NULL) + tool->read = process_event_sample_stub; + if (tool->throttle == NULL) + tool->throttle = process_event_stub; + if (tool->unthrottle == NULL) + tool->unthrottle = process_event_stub; + if (tool->attr == NULL) + tool->attr = process_event_synth_attr_stub; + if (tool->event_type == NULL) + tool->event_type = process_event_type_stub; + if (tool->tracing_data == NULL) + tool->tracing_data = process_event_synth_tracing_data_stub; + if (tool->build_id == NULL) + tool->build_id = process_finished_round_stub; + if (tool->finished_round == NULL) { + if (tool->ordered_samples) + tool->finished_round = process_finished_round; else - handler->finished_round = process_finished_round_stub; + tool->finished_round = process_finished_round_stub; } } @@ -487,11 +488,11 @@ static void perf_session_free_sample_buffers(struct perf_session *session) static int perf_session_deliver_event(struct perf_session *session, union perf_event *event, struct perf_sample *sample, - struct perf_event_ops *ops, + struct perf_tool *tool, u64 file_offset); static void flush_sample_queue(struct perf_session *s, - struct perf_event_ops *ops) + struct perf_tool *tool) { struct ordered_samples *os = &s->ordered_samples; struct list_head *head = &os->samples; @@ -502,7 +503,7 @@ static void flush_sample_queue(struct perf_session *s, unsigned idx = 0, progress_next = os->nr_samples / 16; int ret; - if (!ops->ordered_samples || !limit) + if (!tool->ordered_samples || !limit) return; list_for_each_entry_safe(iter, tmp, head, list) { @@ -513,7 +514,7 @@ static void flush_sample_queue(struct perf_session *s, if (ret) pr_err("Can't parse sample, err = %d\n", ret); else - perf_session_deliver_event(s, iter->event, &sample, ops, + perf_session_deliver_event(s, iter->event, &sample, tool, iter->file_offset); os->last_flush = iter->timestamp; @@ -575,11 +576,11 @@ static void flush_sample_queue(struct perf_session *s, * Flush every events below timestamp 7 * etc... */ -static int process_finished_round(struct perf_event_ops *ops, +static int process_finished_round(struct perf_tool *tool, union perf_event *event __used, struct perf_session *session) { - flush_sample_queue(session, ops); + flush_sample_queue(session, tool); session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; return 0; @@ -749,7 +750,7 @@ static struct machine * static int perf_session_deliver_event(struct perf_session *session, union perf_event *event, struct perf_sample *sample, - struct perf_event_ops *ops, + struct perf_tool *tool, u64 file_offset) { struct perf_evsel *evsel; @@ -784,25 +785,25 @@ static int perf_session_deliver_event(struct perf_session *session, ++session->hists.stats.nr_unknown_id; return -1; } - return ops->sample(ops, event, sample, evsel, machine); + return tool->sample(tool, event, sample, evsel, machine); case PERF_RECORD_MMAP: - return ops->mmap(ops, event, sample, machine); + return tool->mmap(tool, event, sample, machine); case PERF_RECORD_COMM: - return ops->comm(ops, event, sample, machine); + return tool->comm(tool, event, sample, machine); case PERF_RECORD_FORK: - return ops->fork(ops, event, sample, machine); + return tool->fork(tool, event, sample, machine); case PERF_RECORD_EXIT: - return ops->exit(ops, event, sample, machine); + return tool->exit(tool, event, sample, machine); case PERF_RECORD_LOST: - if (ops->lost == perf_event__process_lost) + if (tool->lost == perf_event__process_lost) session->hists.stats.total_lost += event->lost.lost; - return ops->lost(ops, event, sample, machine); + return tool->lost(tool, event, sample, machine); case PERF_RECORD_READ: - return ops->read(ops, event, sample, evsel, machine); + return tool->read(tool, event, sample, evsel, machine); case PERF_RECORD_THROTTLE: - return ops->throttle(ops, event, sample, machine); + return tool->throttle(tool, event, sample, machine); case PERF_RECORD_UNTHROTTLE: - return ops->unthrottle(ops, event, sample, machine); + return tool->unthrottle(tool, event, sample, machine); default: ++session->hists.stats.nr_unknown_events; return -1; @@ -826,7 +827,7 @@ static int perf_session__preprocess_sample(struct perf_session *session, } static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, - struct perf_event_ops *ops, u64 file_offset) + struct perf_tool *tool, u64 file_offset) { int err; @@ -835,20 +836,20 @@ static int perf_session__process_user_event(struct perf_session *session, union /* These events are processed right away */ switch (event->header.type) { case PERF_RECORD_HEADER_ATTR: - err = ops->attr(event, &session->evlist); + err = tool->attr(event, &session->evlist); if (err == 0) perf_session__update_sample_type(session); return err; case PERF_RECORD_HEADER_EVENT_TYPE: - return ops->event_type(ops, event); + return tool->event_type(tool, event); case PERF_RECORD_HEADER_TRACING_DATA: /* setup for reading amidst mmap */ lseek(session->fd, file_offset, SEEK_SET); - return ops->tracing_data(event, session); + return tool->tracing_data(event, session); case PERF_RECORD_HEADER_BUILD_ID: - return ops->build_id(ops, event, session); + return tool->build_id(tool, event, session); case PERF_RECORD_FINISHED_ROUND: - return ops->finished_round(ops, event, session); + return tool->finished_round(tool, event, session); default: return -EINVAL; } @@ -856,7 +857,7 @@ static int perf_session__process_user_event(struct perf_session *session, union static int perf_session__process_event(struct perf_session *session, union perf_event *event, - struct perf_event_ops *ops, + struct perf_tool *tool, u64 file_offset) { struct perf_sample sample; @@ -872,7 +873,7 @@ static int perf_session__process_event(struct perf_session *session, hists__inc_nr_events(&session->hists, event->header.type); if (event->header.type >= PERF_RECORD_USER_TYPE_START) - return perf_session__process_user_event(session, event, ops, file_offset); + return perf_session__process_user_event(session, event, tool, file_offset); /* * For all kernel events we get the sample data @@ -885,14 +886,14 @@ static int perf_session__process_event(struct perf_session *session, if (perf_session__preprocess_sample(session, event, &sample)) return 0; - if (ops->ordered_samples) { + if (tool->ordered_samples) { ret = perf_session_queue_event(session, event, &sample, file_offset); if (ret != -ETIME) return ret; } - return perf_session_deliver_event(session, event, &sample, ops, + return perf_session_deliver_event(session, event, &sample, tool, file_offset); } @@ -921,9 +922,9 @@ static struct thread *perf_session__register_idle_thread(struct perf_session *se } static void perf_session__warn_about_errors(const struct perf_session *session, - const struct perf_event_ops *ops) + const struct perf_tool *tool) { - if (ops->lost == perf_event__process_lost && + if (tool->lost == perf_event__process_lost && session->hists.stats.nr_events[PERF_RECORD_LOST] != 0) { ui__warning("Processed %d events and lost %d chunks!\n\n" "Check IO/CPU overload!\n\n", @@ -958,7 +959,7 @@ static void perf_session__warn_about_errors(const struct perf_session *session, volatile int session_done; static int __perf_session__process_pipe_events(struct perf_session *self, - struct perf_event_ops *ops) + struct perf_tool *tool) { union perf_event event; uint32_t size; @@ -967,7 +968,7 @@ static int __perf_session__process_pipe_events(struct perf_session *self, int err; void *p; - perf_event_ops__fill_defaults(ops); + perf_tool__fill_defaults(tool); head = 0; more: @@ -1004,7 +1005,7 @@ more: } if (size == 0 || - (skip = perf_session__process_event(self, &event, ops, head)) < 0) { + (skip = perf_session__process_event(self, &event, tool, head)) < 0) { dump_printf("%#" PRIx64 " [%#x]: skipping unknown header type: %d\n", head, event.header.size, event.header.type); /* @@ -1027,7 +1028,7 @@ more: done: err = 0; out_err: - perf_session__warn_about_errors(self, ops); + perf_session__warn_about_errors(self, tool); perf_session_free_sample_buffers(self); return err; } @@ -1058,7 +1059,7 @@ fetch_mmaped_event(struct perf_session *session, int __perf_session__process_events(struct perf_session *session, u64 data_offset, u64 data_size, - u64 file_size, struct perf_event_ops *ops) + u64 file_size, struct perf_tool *tool) { u64 head, page_offset, file_offset, file_pos, progress_next; int err, mmap_prot, mmap_flags, map_idx = 0; @@ -1067,7 +1068,7 @@ int __perf_session__process_events(struct perf_session *session, union perf_event *event; uint32_t size; - perf_event_ops__fill_defaults(ops); + perf_tool__fill_defaults(tool); page_size = sysconf(_SC_PAGESIZE); @@ -1122,7 +1123,7 @@ more: size = event->header.size; if (size == 0 || - perf_session__process_event(session, event, ops, file_pos) < 0) { + perf_session__process_event(session, event, tool, file_pos) < 0) { dump_printf("%#" PRIx64 " [%#x]: skipping unknown header type: %d\n", file_offset + head, event->header.size, event->header.type); @@ -1151,15 +1152,15 @@ more: err = 0; /* do the final flush for ordered samples */ session->ordered_samples.next_flush = ULLONG_MAX; - flush_sample_queue(session, ops); + flush_sample_queue(session, tool); out_err: - perf_session__warn_about_errors(session, ops); + perf_session__warn_about_errors(session, tool); perf_session_free_sample_buffers(session); return err; } int perf_session__process_events(struct perf_session *self, - struct perf_event_ops *ops) + struct perf_tool *tool) { int err; @@ -1170,9 +1171,9 @@ int perf_session__process_events(struct perf_session *self, err = __perf_session__process_events(self, self->header.data_offset, self->header.data_size, - self->size, ops); + self->size, tool); else - err = __perf_session__process_pipe_events(self, ops); + err = __perf_session__process_pipe_events(self, tool); return err; } -- cgit v1.2.3 From 002c4fd92d772becf8745b9cbcebe5c95fe6dad0 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Wed, 7 Dec 2011 10:02:52 +0100 Subject: perf tools: Fix out-of-bound access to struct perf_session If filename is NULL there is an out-of-bound access to struct perf_session if it would be used with perf_session__open(). Shouldn't actually happen in current implementation as filename is always !NULL. Fixing this by always null-terminating filename. Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1323248577-11268-3-git-send-email-robert.richter@amd.com Signed-off-by: Robert Richter Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index d9318d8a9ba1..ea17dfb85baa 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -107,7 +107,7 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe, struct perf_tool *tool) { - size_t len = filename ? strlen(filename) + 1 : 0; + size_t len = filename ? strlen(filename) : 0; struct perf_session *self = zalloc(sizeof(*self) + len); if (self == NULL) -- cgit v1.2.3 From efad14150a0b4429f37da7245001a8096ef7ee38 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Wed, 7 Dec 2011 10:02:54 +0100 Subject: perf report: Accept fifos as input file The default input file for perf report is not handled the same way as perf record does it for its output file. This leads to unexpected behavior of perf report, etc. E.g.: # perf record -a -e cpu-cycles sleep 2 | perf report | cat failed to open perf.data: No such file or directory (try 'perf record' first) While perf record writes to a fifo, perf report expects perf.data to be read. This patch changes this to accept fifos as input file. Applies to the following commands: perf annotate perf buildid-list perf evlist perf kmem perf lock perf report perf sched perf script perf timechart Also fixes char const* -> const char* type declaration for filename strings. v2: * Prevent potential null pointer access to input_name in builtin-report.c. Needed due to removal of patch "perf report: Setup browser if stdout is a pipe" Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1323248577-11268-5-git-send-email-robert.richter@amd.com Signed-off-by: Robert Richter Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index ea17dfb85baa..cc5e6be46d86 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -107,8 +107,19 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe, struct perf_tool *tool) { - size_t len = filename ? strlen(filename) : 0; - struct perf_session *self = zalloc(sizeof(*self) + len); + struct perf_session *self; + struct stat st; + size_t len; + + if (!filename || !strlen(filename)) { + if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) + filename = "-"; + else + filename = "perf.data"; + } + + len = strlen(filename); + self = zalloc(sizeof(*self) + len); if (self == NULL) goto out; -- cgit v1.2.3 From 29c9862f1b818bf4caa4c48a30dbe5f25c84ee08 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 28 Dec 2011 00:35:48 +0900 Subject: perf session: Remove impossible condition check The 'size' cannot be 0 because it was set to 8 on the above line in case it was 0 and never changed. Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1325000151-4463-1-git-send-email-namhyung@gmail.com Signed-off-by: Namhyung Kim Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'tools/perf/util/session.c') diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index cc5e6be46d86..b5ca2558c7bb 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1015,8 +1015,7 @@ more: } } - if (size == 0 || - (skip = perf_session__process_event(self, &event, tool, head)) < 0) { + if ((skip = perf_session__process_event(self, &event, tool, head)) < 0) { dump_printf("%#" PRIx64 " [%#x]: skipping unknown header type: %d\n", head, event.header.size, event.header.type); /* -- cgit v1.2.3