Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934081Ab2HWPNh (ORCPT ); Thu, 23 Aug 2012 11:13:37 -0400 Received: from casper.infradead.org ([85.118.1.10]:57444 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753194Ab2HWPKT (ORCPT ); Thu, 23 Aug 2012 11:10:19 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Robert Richter , Jiri Olsa , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 03/12] perf tools: Catch event names from command line Date: Thu, 23 Aug 2012 12:09:47 -0300 Message-Id: <1345734596-7601-4-git-send-email-acme@infradead.org> X-Mailer: git-send-email 1.7.9.2.358.g22243 In-Reply-To: <1345734596-7601-1-git-send-email-acme@infradead.org> References: <1345734596-7601-1-git-send-email-acme@infradead.org> Content-Type: text/plain; charset="UTF-8" X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 10054 Lines: 293 From: Robert Richter Use command line string provided by the -e option to name events. This way we get unique events names that also support pmu event syntax (//). No need to reconstruct the name anymore from its attributes. We use the event_desc of the header to store the name in the perf.data header. Thus it is also available for perf report. Implemented by putting the parser in different states to parse events or configs. And since event names are now generated from the command line specification. Update event names in test cases accordingly. Signed-off-by: Robert Richter Cc: Ingo Molnar Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1345144224-27280-6-git-send-email-robert.richter@amd.com [ committer note: Folded patch fixing 'perf test' failure reported by Jiri Olsa ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/parse-events-test.c | 13 +++++---- tools/perf/util/parse-events.c | 12 ++++++++ tools/perf/util/parse-events.h | 1 + tools/perf/util/parse-events.l | 50 ++++++++++++++++++++++++++++------- tools/perf/util/parse-events.y | 20 ++++++++++++- 5 files changed, 78 insertions(+), 18 deletions(-) diff --git a/tools/perf/util/parse-events-test.c b/tools/perf/util/parse-events-test.c index 392308c..bc8b651 100644 --- a/tools/perf/util/parse-events-test.c +++ b/tools/perf/util/parse-events-test.c @@ -301,12 +301,13 @@ static int test__checkevent_breakpoint_modifier(struct perf_evlist *evlist) { struct perf_evsel *evsel = perf_evlist__first(evlist); + TEST_ASSERT_VAL("wrong exclude_user", !evsel->attr.exclude_user); TEST_ASSERT_VAL("wrong exclude_kernel", evsel->attr.exclude_kernel); TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip); TEST_ASSERT_VAL("wrong name", - !strcmp(perf_evsel__name(evsel), "mem:0x0:rw:u")); + !strcmp(perf_evsel__name(evsel), "mem:0:u")); return test__checkevent_breakpoint(evlist); } @@ -320,7 +321,7 @@ static int test__checkevent_breakpoint_x_modifier(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); TEST_ASSERT_VAL("wrong precise_ip", !evsel->attr.precise_ip); TEST_ASSERT_VAL("wrong name", - !strcmp(perf_evsel__name(evsel), "mem:0x0:x:k")); + !strcmp(perf_evsel__name(evsel), "mem:0:x:k")); return test__checkevent_breakpoint_x(evlist); } @@ -334,7 +335,7 @@ static int test__checkevent_breakpoint_r_modifier(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong exclude_hv", !evsel->attr.exclude_hv); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip); TEST_ASSERT_VAL("wrong name", - !strcmp(perf_evsel__name(evsel), "mem:0x0:r:hp")); + !strcmp(perf_evsel__name(evsel), "mem:0:r:hp")); return test__checkevent_breakpoint_r(evlist); } @@ -348,7 +349,7 @@ static int test__checkevent_breakpoint_w_modifier(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip); TEST_ASSERT_VAL("wrong name", - !strcmp(perf_evsel__name(evsel), "mem:0x0:w:up")); + !strcmp(perf_evsel__name(evsel), "mem:0:w:up")); return test__checkevent_breakpoint_w(evlist); } @@ -362,7 +363,7 @@ static int test__checkevent_breakpoint_rw_modifier(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong exclude_hv", evsel->attr.exclude_hv); TEST_ASSERT_VAL("wrong precise_ip", evsel->attr.precise_ip); TEST_ASSERT_VAL("wrong name", - !strcmp(perf_evsel__name(evsel), "mem:0x0:rw:kp")); + !strcmp(perf_evsel__name(evsel), "mem:0:rw:kp")); return test__checkevent_breakpoint_rw(evlist); } @@ -437,7 +438,7 @@ static int test__checkevent_pmu_name(struct perf_evlist *evlist) TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type); TEST_ASSERT_VAL("wrong config", 2 == evsel->attr.config); TEST_ASSERT_VAL("wrong name", - !strcmp(perf_evsel__name(evsel), "raw 0x2:u")); + !strcmp(perf_evsel__name(evsel), "cpu/config=2/u")); return 0; } diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 925784a..b246303 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -751,6 +751,18 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add) return 0; } +int parse_events_name(struct list_head *list, char *name) +{ + struct perf_evsel *evsel; + + list_for_each_entry(evsel, list, node) { + if (!evsel->name) + evsel->name = strdup(name); + } + + return 0; +} + static int parse_events__scanner(const char *str, void *data, int start_token) { YY_BUFFER_STATE buffer; diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 0b9782d..c356e44 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -81,6 +81,7 @@ int parse_events__term_clone(struct parse_events__term **new, void parse_events__free_terms(struct list_head *terms); int parse_events__modifier_event(struct list_head *list, char *str, bool add); int parse_events__modifier_group(struct list_head *list, char *event_mod); +int parse_events_name(struct list_head *list, char *name); int parse_events_add_tracepoint(struct list_head **list, int *idx, char *sys, char *event); int parse_events_add_numeric(struct list_head **list, int *idx, diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l index 2c0d006..f5e28dc 100644 --- a/tools/perf/util/parse-events.l +++ b/tools/perf/util/parse-events.l @@ -70,6 +70,12 @@ static int term(yyscan_t scanner, int type) %} %x mem +%s config +%x event + +group [^,{}/]*[{][^}]*[}][^,{}/]* +event_pmu [^,{}/]+[/][^/]*[/][^,{}/]* +event [^,{}/]+ num_dec [0-9]+ num_hex 0x[a-fA-F0-9]+ @@ -84,7 +90,13 @@ modifier_bp [rwx]{1,3} { int start_token; - start_token = (int) parse_events_get_extra(yyscanner); + start_token = parse_events_get_extra(yyscanner); + + if (start_token == PE_START_TERMS) + BEGIN(config); + else if (start_token == PE_START_EVENTS) + BEGIN(event); + if (start_token) { parse_events_set_extra(NULL, yyscanner); return start_token; @@ -92,6 +104,26 @@ modifier_bp [rwx]{1,3} } %} +{ + +{group} { + BEGIN(INITIAL); yyless(0); + } + +{event_pmu} | +{event} { + str(yyscanner, PE_EVENT_NAME); + BEGIN(INITIAL); yyless(0); + return PE_EVENT_NAME; + } + +. | +<> { + BEGIN(INITIAL); yyless(0); + } + +} + cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); } stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); } stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); } @@ -127,18 +159,16 @@ speculative-read|speculative-load | refs|Reference|ops|access | misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); } - /* - * These are event config hardcoded term names to be specified - * within xxx/.../ syntax. So far we dont clash with other names, - * so we can put them here directly. In case the we have a conflict - * in future, this needs to go into '//' condition block. - */ +{ config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); } config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); } config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); } name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); } period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); } branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); } +, { return ','; } +"/" { BEGIN(INITIAL); return '/'; } +} mem: { BEGIN(mem); return PE_PREFIX_MEM; } r{num_raw_hex} { return raw(yyscanner); } @@ -147,11 +177,11 @@ r{num_raw_hex} { return raw(yyscanner); } {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); } {name} { return str(yyscanner, PE_NAME); } -"/" { return '/'; } +"/" { BEGIN(config); return '/'; } - { return '-'; } -, { return ','; } +, { BEGIN(event); return ','; } : { return ':'; } -"{" { return '{'; } +"{" { BEGIN(event); return '{'; } "}" { return '}'; } = { return '='; } \n { } diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index 66850f8..42d9a17 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -27,6 +27,7 @@ do { \ %token PE_START_EVENTS PE_START_TERMS %token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_RAW PE_TERM +%token PE_EVENT_NAME %token PE_NAME %token PE_MODIFIER_EVENT PE_MODIFIER_BP %token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT @@ -42,6 +43,7 @@ do { \ %type PE_NAME_CACHE_OP_RESULT %type PE_MODIFIER_EVENT %type PE_MODIFIER_BP +%type PE_EVENT_NAME %type value_sym %type event_config %type event_term @@ -53,6 +55,8 @@ do { \ %type event_legacy_numeric %type event_legacy_raw %type event_def +%type event_mod +%type event_name %type event %type events %type group_def @@ -143,8 +147,10 @@ events ',' event | event -event: -event_def PE_MODIFIER_EVENT +event: event_mod + +event_mod: +event_name PE_MODIFIER_EVENT { struct list_head *list = $1; @@ -157,6 +163,16 @@ event_def PE_MODIFIER_EVENT $$ = list; } | +event_name + +event_name: +PE_EVENT_NAME event_def +{ + ABORT_ON(parse_events_name($2, $1)); + free($1); + $$ = $2; +} +| event_def event_def: event_pmu | -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/