From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756854AbaGaGKq (ORCPT ); Thu, 31 Jul 2014 02:10:46 -0400 Received: from mga11.intel.com ([192.55.52.93]:44617 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756158AbaGaGC2 (ORCPT ); Thu, 31 Jul 2014 02:02:28 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,770,1400050800"; d="scan'208";a="569799663" From: Adrian Hunter To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, David Ahern , Frederic Weisbecker , Jiri Olsa , Namhyung Kim , Paul Mackerras , Stephane Eranian Subject: [PATCH 02/31] perf tools: Add machine__thread_exec_comm() Date: Thu, 31 Jul 2014 09:00:45 +0300 Message-Id: <1406786474-9306-3-git-send-email-adrian.hunter@intel.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1406786474-9306-1-git-send-email-adrian.hunter@intel.com> References: <1406786474-9306-1-git-send-email-adrian.hunter@intel.com> Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add machine__thread_exec_comm() to return the comm that matches the last exec, if the comm_exec flag is present, or the last comm otherwise. Signed-off-by: Adrian Hunter --- tools/perf/util/machine.c | 26 ++++++++++++++++++++++++++ tools/perf/util/machine.h | 4 ++++ tools/perf/util/session.c | 24 +++++++++++++++++++++++- 3 files changed, 53 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index ea3e09f..b093b93 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -31,6 +31,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid) machine->symbol_filter = NULL; machine->id_hdr_size = 0; + machine->comm_exec = false; machine->root_dir = strdup(root_dir); if (machine->root_dir == NULL) @@ -179,6 +180,19 @@ void machines__set_symbol_filter(struct machines *machines, } } +void machines__set_comm_exec(struct machines *machines, bool comm_exec) +{ + struct rb_node *nd; + + machines->host.comm_exec = comm_exec; + + for (nd = rb_first(&machines->guests); nd; nd = rb_next(nd)) { + struct machine *machine = rb_entry(nd, struct machine, rb_node); + + machine->comm_exec = comm_exec; + } +} + struct machine *machines__find(struct machines *machines, pid_t pid) { struct rb_node **p = &machines->guests.rb_node; @@ -398,6 +412,15 @@ struct thread *machine__find_thread(struct machine *machine, pid_t pid, return __machine__findnew_thread(machine, pid, tid, false); } +struct comm *machine__thread_exec_comm(struct machine *machine, + struct thread *thread) +{ + if (machine->comm_exec) + return thread__exec_comm(thread); + else + return thread__comm(thread); +} + int machine__process_comm_event(struct machine *machine, union perf_event *event, struct perf_sample *sample) { @@ -406,6 +429,9 @@ int machine__process_comm_event(struct machine *machine, union perf_event *event event->comm.tid); bool exec = event->header.misc & PERF_RECORD_MISC_COMM_EXEC; + if (exec) + machine->comm_exec = true; + if (dump_trace) perf_event__fprintf_comm(event, stdout); diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h index b972824..61216e0 100644 --- a/tools/perf/util/machine.h +++ b/tools/perf/util/machine.h @@ -26,6 +26,7 @@ struct machine { struct rb_node rb_node; pid_t pid; u16 id_hdr_size; + bool comm_exec; char *root_dir; struct rb_root threads; struct list_head dead_threads; @@ -47,6 +48,8 @@ struct map *machine__kernel_map(struct machine *machine, enum map_type type) struct thread *machine__find_thread(struct machine *machine, pid_t pid, pid_t tid); +struct comm *machine__thread_exec_comm(struct machine *machine, + struct thread *thread); int machine__process_comm_event(struct machine *machine, union perf_event *event, struct perf_sample *sample); @@ -88,6 +91,7 @@ char *machine__mmap_name(struct machine *machine, char *bf, size_t size); void machines__set_symbol_filter(struct machines *machines, symbol_filter_t symbol_filter); +void machines__set_comm_exec(struct machines *machines, bool comm_exec); struct machine *machine__new_host(void); int machine__init(struct machine *machine, const char *root_dir, pid_t pid); diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 88dfef7..bf24696 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -66,6 +66,25 @@ static void perf_session__destroy_kernel_maps(struct perf_session *session) machines__destroy_kernel_maps(&session->machines); } +static bool perf_session__has_comm_exec(struct perf_session *session) +{ + struct perf_evsel *evsel; + + evlist__for_each(session->evlist, evsel) { + if (evsel->attr.comm_exec) + return true; + } + + return false; +} + +static void perf_session__set_comm_exec(struct perf_session *session) +{ + bool comm_exec = perf_session__has_comm_exec(session); + + machines__set_comm_exec(&session->machines, comm_exec); +} + struct perf_session *perf_session__new(struct perf_data_file *file, bool repipe, struct perf_tool *tool) { @@ -91,6 +110,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file, goto out_close; perf_session__set_id_hdr_size(session); + perf_session__set_comm_exec(session); } } @@ -1005,8 +1025,10 @@ static s64 perf_session__process_user_event(struct perf_session *session, switch (event->header.type) { case PERF_RECORD_HEADER_ATTR: err = tool->attr(tool, event, &session->evlist); - if (err == 0) + if (err == 0) { perf_session__set_id_hdr_size(session); + perf_session__set_comm_exec(session); + } return err; case PERF_RECORD_HEADER_EVENT_TYPE: /* -- 1.8.3.2