[PATCH 1/3] perf, tools, list: Make vendor event matching case insensitive

[PATCH 1/3] perf, tools, list: Make vendor event matching case insensitive

[Andi Kleen]

From: Andi Kleen <ak@linux.intel.com>

Make the perf list glob matching for vendor events case insensitive.
This allows to use the upper case vendor events with perf list too.

Now the following works:

% perf list LONGEST_LAT

...

cache:
  longest_lat_cache.miss
       [Core-originated cacheable demand requests missed LLC]
  longest_lat_cache.reference
       [Core-originated cacheable demand requests that refer to LLC]

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/util/pmu.c    |  4 ++--
 tools/perf/util/string.c | 21 ++++++++++++++++-----
 tools/perf/util/util.h   |  1 +
 3 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index d8d7d4c0319c..101922b2a243 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1140,8 +1140,8 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 				continue;
 
 			if (event_glob != NULL &&
-			    !(strglobmatch(name, event_glob) ||
-			      (!is_cpu && strglobmatch(alias->name,
+			    !(strglobmatch_nocase(name, event_glob) ||
+			      (!is_cpu && strglobmatch_nocase(alias->name,
 						       event_glob))))
 				continue;
 
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 7f7e072be746..d8dfaf64b32e 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -193,7 +193,8 @@ static bool __match_charclass(const char *pat, char c, const char **npat)
 }
 
 /* Glob/lazy pattern matching */
-static bool __match_glob(const char *str, const char *pat, bool ignore_space)
+static bool __match_glob(const char *str, const char *pat, bool ignore_space,
+			bool case_ins)
 {
 	while (*str && *pat && *pat != '*') {
 		if (ignore_space) {
@@ -219,8 +220,13 @@ static bool __match_glob(const char *str, const char *pat, bool ignore_space)
 				return false;
 		else if (*pat == '\\') /* Escaped char match as normal char */
 			pat++;
-		if (*str++ != *pat++)
+		if (case_ins) {
+			if (tolower(*str) != tolower(*pat))
+				return false;
+		} else if (*str != *pat)
 			return false;
+		str++;
+		pat++;
 	}
 	/* Check wild card */
 	if (*pat == '*') {
@@ -229,7 +235,7 @@ static bool __match_glob(const char *str, const char *pat, bool ignore_space)
 		if (!*pat)	/* Tail wild card matches all */
 			return true;
 		while (*str)
-			if (__match_glob(str++, pat, ignore_space))
+			if (__match_glob(str++, pat, ignore_space, case_ins))
 				return true;
 	}
 	return !*str && !*pat;
@@ -249,7 +255,12 @@ static bool __match_glob(const char *str, const char *pat, bool ignore_space)
  */
 bool strglobmatch(const char *str, const char *pat)
 {
-	return __match_glob(str, pat, false);
+	return __match_glob(str, pat, false, false);
+}
+
+bool strglobmatch_nocase(const char *str, const char *pat)
+{
+	return __match_glob(str, pat, false, true);
 }
 
 /**
@@ -262,7 +273,7 @@ bool strglobmatch(const char *str, const char *pat)
  */
 bool strlazymatch(const char *str, const char *pat)
 {
-	return __match_glob(str, pat, true);
+	return __match_glob(str, pat, true, false);
 }
 
 /**
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 43899e0d6fa1..71b6992f1d98 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -222,6 +222,7 @@ s64 perf_atoll(const char *str);
 char **argv_split(const char *str, int *argcp);
 void argv_free(char **argv);
 bool strglobmatch(const char *str, const char *pat);
+bool strglobmatch_nocase(const char *str, const char *pat);
 bool strlazymatch(const char *str, const char *pat);
 static inline bool strisglob(const char *str)
 {
-- 
2.5.5

[PATCH 2/3] perf, tools, list: Support matching by topic

[Andi Kleen]

From: Andi Kleen <ak@linux.intel.com>

Add support in perf list topic to only show events belonging to a specific
vendor events topic. For example the following works now:

% perf list frontend
List of pre-defined events (to be used in -e):

  stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]

  stalled-cycles-frontend OR cpu/stalled-cycles-frontend/ [Kernel PMU event]

frontend:
  dsb2mite_switches.count
       [Decode Stream Buffer (DSB)-to-MITE switches]
  dsb2mite_switches.penalty_cycles
       [Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles]
  dsb_fill.exceed_dsb_lines
       [Cycles when Decode Stream Buffer (DSB) fill encounter more than 3 Decode Stream Buffer (DSB)
        lines]
  icache.hit
       [Number of Instruction Cache, Streaming Buffer and Victim Cache Reads. both cacheable and
        noncacheable, including UC fetches]
...

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/util/pmu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 101922b2a243..dc8eb30e8597 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1142,7 +1142,9 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 			if (event_glob != NULL &&
 			    !(strglobmatch_nocase(name, event_glob) ||
 			      (!is_cpu && strglobmatch_nocase(alias->name,
-						       event_glob))))
+						       event_glob)) ||
+			      (alias->topic &&
+			       strglobmatch_nocase(alias->topic, event_glob))))
 				continue;
 
 			if (is_cpu && !name_only && !alias->desc)
-- 
2.5.5

[PATCH 3/3] perf, tools, list: Support perf list cache for topics

[Andi Kleen]

From: Andi Kleen <ak@linux.intel.com>

"Cache" is a common topic name for vendor lists. But it couldn't
be matched with perf list cache, because that already prints only
the existing perf cache events.

Simply print the vendor cache events too in this case.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/builtin-list.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 1095a6dada66..c00b0eb343c0 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -67,9 +67,11 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
 			print_symbol_events(NULL, PERF_TYPE_SOFTWARE,
 					event_symbols_sw, PERF_COUNT_SW_MAX, raw_dump);
 		else if (strcmp(argv[i], "cache") == 0 ||
-			 strcmp(argv[i], "hwcache") == 0)
+			 strcmp(argv[i], "hwcache") == 0) {
 			print_hwcache_events(NULL, raw_dump);
-		else if (strcmp(argv[i], "pmu") == 0)
+			print_pmu_events(argv[i], raw_dump, !desc_flag,
+					long_desc_flag, true);
+		} else if (strcmp(argv[i], "pmu") == 0)
 			print_pmu_events(NULL, raw_dump, !desc_flag,
 						long_desc_flag, false);
 		else if (strcmp(argv[i], "sdt") == 0)
-- 
2.5.5

[tip:perf/core] perf list: Support matching by topic

[tip-bot for Andi Kleen]

Commit-ID:  67bdc35fb48c97502dd4b9eeac561e4bcc18684b
Gitweb:     http://git.kernel.org/tip/67bdc35fb48c97502dd4b9eeac561e4bcc18684b
Author:     Andi Kleen <ak@linux.intel.com>
AuthorDate: Wed, 19 Oct 2016 11:45:23 -0700
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 28 Oct 2016 11:29:42 -0200

perf list: Support matching by topic

Add support in perf list topic to only show events belonging to a
specific vendor events topic. For example the following works now:

  % perf list frontend
  List of pre-defined events (to be used in -e):

    stalled-cycles-frontend OR idle-cycles-frontend    [Hardware event]

    stalled-cycles-frontend OR cpu/stalled-cycles-frontend/ [Kernel PMU event]

  frontend:
    dsb2mite_switches.count
         [Decode Stream Buffer (DSB)-to-MITE switches]
    dsb2mite_switches.penalty_cycles
         [Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles]
    dsb_fill.exceed_dsb_lines
         [Cycles when Decode Stream Buffer (DSB) fill encounter more than 3 Decode Stream Buffer (DSB)
          lines]
    icache.hit
         [Number of Instruction Cache, Streaming Buffer and Victim Cache Reads. both cacheable and
          noncacheable, including UC fetches]
  ...

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/r/1476902724-9586-2-git-send-email-andi@firstfloor.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/pmu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 31b845e..dc6ccaa 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1141,7 +1141,9 @@ void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 			if (event_glob != NULL &&
 			    !(strglobmatch_nocase(name, event_glob) ||
 			      (!is_cpu && strglobmatch_nocase(alias->name,
-						       event_glob))))
+						       event_glob)) ||
+			      (alias->topic &&
+			       strglobmatch_nocase(alias->topic, event_glob))))
 				continue;
 
 			if (is_cpu && !name_only && !alias->desc)