linux-kernel - [PATCH v0 36/71] perf tools: Add support for parsing pmu itrace

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Message-Id: <1386765443-26966-37-git-send-email-alexander.shishkin@linux.intel.com>
Date:	Wed, 11 Dec 2013 14:36:48 +0200
From:	Alexander Shishkin <alexander.shishkin@...ux.intel.com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Stephane Eranian <eranian@...gle.com>,
	Andi Kleen <ak@...ux.intel.com>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH v0 36/71] perf tools: Add support for parsing pmu itrace_config

From: Adrian Hunter <adrian.hunter@...el.com>

Instruction Tracing uses a new perf_event_attr member
named itrace_config.  Add support for parsing pmu format
values and term types based on itrace_config.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/parse-events.c | 4 ++++
 tools/perf/util/parse-events.h | 1 +
 tools/perf/util/parse-events.l | 1 +
 tools/perf/util/pmu.c          | 3 +++
 tools/perf/util/pmu.h          | 1 +
 tools/perf/util/pmu.l          | 1 +
 tools/perf/util/pmu.y          | 9 ++++++++-
 7 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 464dafd..d494a5a 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -576,6 +576,10 @@ do {								\
 	case PARSE_EVENTS__TERM_TYPE_NAME:
 		CHECK_TYPE_VAL(STR);
 		break;
+	case PARSE_EVENTS__TERM_TYPE_ITRACE_CONFIG:
+		CHECK_TYPE_VAL(NUM);
+		attr->itrace_config = term->val.num;
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index f1cb4c4..86a2721 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -49,6 +49,7 @@ enum {
 	PARSE_EVENTS__TERM_TYPE_NAME,
 	PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
 	PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
+	PARSE_EVENTS__TERM_TYPE_ITRACE_CONFIG,
 };
 
 struct parse_events_term {
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 3432995..85106c4 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -133,6 +133,7 @@ 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); }
+itrace_config		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_ITRACE_CONFIG); }
 ,			{ return ','; }
 "/"			{ BEGIN(INITIAL); return '/'; }
 {name_minus}		{ return str(yyscanner, PE_NAME); }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index c6c240f..e308dfe 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -547,6 +547,9 @@ static int pmu_config_term(struct list_head *formats,
 	case PERF_PMU_FORMAT_VALUE_CONFIG2:
 		vp = &attr->config2;
 		break;
+	case PERF_PMU_FORMAT_VALUE_ITRACE_CONFIG:
+		vp = &attr->itrace_config;
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index d5266d1..52e4d30 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -9,6 +9,7 @@ enum {
 	PERF_PMU_FORMAT_VALUE_CONFIG,
 	PERF_PMU_FORMAT_VALUE_CONFIG1,
 	PERF_PMU_FORMAT_VALUE_CONFIG2,
+	PERF_PMU_FORMAT_VALUE_ITRACE_CONFIG,
 };
 
 #define PERF_PMU_FORMAT_BITS 64
diff --git a/tools/perf/util/pmu.l b/tools/perf/util/pmu.l
index a15d9fb..c94ee8cd 100644
--- a/tools/perf/util/pmu.l
+++ b/tools/perf/util/pmu.l
@@ -29,6 +29,7 @@ num_dec         [0-9]+
 config		{ return PP_CONFIG; }
 config1		{ return PP_CONFIG1; }
 config2		{ return PP_CONFIG2; }
+itrace_config	{ return PP_ITRACE_CONFIG; }
 -		{ return '-'; }
 :		{ return ':'; }
 ,		{ return ','; }
diff --git a/tools/perf/util/pmu.y b/tools/perf/util/pmu.y
index bfd7e85..caa190e 100644
--- a/tools/perf/util/pmu.y
+++ b/tools/perf/util/pmu.y
@@ -20,7 +20,7 @@ do { \
 
 %}
 
-%token PP_CONFIG PP_CONFIG1 PP_CONFIG2
+%token PP_CONFIG PP_CONFIG1 PP_CONFIG2 PP_ITRACE_CONFIG
 %token PP_VALUE PP_ERROR
 %type <num> PP_VALUE
 %type <bits> bit_term
@@ -60,6 +60,13 @@ PP_CONFIG2 ':' bits
 				      PERF_PMU_FORMAT_VALUE_CONFIG2,
 				      $3));
 }
+|
+PP_ITRACE_CONFIG ':' bits
+{
+	ABORT_ON(perf_pmu__new_format(format, name,
+				      PERF_PMU_FORMAT_VALUE_ITRACE_CONFIG,
+				      $3));
+}
 
 bits:
 bits ',' bit_term
-- 
1.8.5.1

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