Merge tag 'perf-urgent-for-mingo-5.7-20200403' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes and improvements from Arnaldo Carvalho de Melo:

perf python:

  Arnaldo Carvalho de Melo:

  - Fix clang detection to strip out options passed in $CC.

build:

  He Zhe:

  - Normalize gcc parameter when generating arch errno table, fixing
    the build by removing options from $(CC).

  Sam Lunt:

  - Support Python 3.8+ in Makefile.

perf report/top:

  Arnaldo Carvalho de Melo:

  - Fix title line formatting.

perf script:

  Andreas Gerstmayr:

  - Fix SEGFAULT when using DWARF mode.

  - Fix invalid read of directory entry after closedir(), found with valgrind.

  Hagen Paul Pfeifer:

  - Introduce --deltatime option.

  Stephane Eranian:

  - Allow --symbol to accept hexadecimal addresses.

  Ian Rogers:

  - Add -S/--symbols documentation

  Namhyung Kim:

  - Add --show-cgroup-events option.

perf python:

  Arnaldo Carvalho de Melo:

  - Include rwsem.c in the python binding, needed by the cgroups improvements.

build-test:

  Arnaldo Carvalho de Melo:

  - Honour JOBS to override detection of number of cores

perf top:

  Jin Yao:

  - Support --group-sort-idx to change the sort order

  - perf top: Support hotkey to change sort order

perf pmu-events x86:

  Jin Yao:

  - Use CPU_CLK_UNHALTED.THREAD in Kernel_Utilization metric

perf symbols arm64:

  Kemeng Shi:

  - Fix arm64 gap between kernel start and module end

kernel perf subsystem:

  Namhyung Kim:

  - Add PERF_RECORD_CGROUP event and Add PERF_SAMPLE_CGROUP feature,
    to allow cgroup tracking, saving a link between cgroup path and
    its id number.

perf cgroup:

  Namhyung Kim:

  - Maintain cgroup hierarchy.

perf report:

  Namhyung Kim:

  - Add 'cgroup' sort key.

perf record:

  Namhyung Kim:

  - Support synthesizing cgroup events for pre-existing cgroups.

  - Add --all-cgroups option

Documentation:

  Tony Jones:

  - Update docs regarding kernel/user space unwinding.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 24 insertions, 15 deletions

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 8b99fd312aae..ef6a63f3d386 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -21,7 +21,6 @@
 #include "pmu.h"
 #include "parse-events.h"
 #include "header.h"
-#include "pmu-events/pmu-events.h"
 #include "string2.h"
 #include "strbuf.h"
 #include "fncache.h"
@@ -699,7 +698,7 @@ struct pmu_events_map *perf_pmu__find_map(struct perf_pmu *pmu)
 	return map;
 }
 
-static bool pmu_uncore_alias_match(const char *pmu_name, const char *name)
+bool pmu_uncore_alias_match(const char *pmu_name, const char *name)
 {
 	char *tmp = NULL, *tok, *str;
 	bool res;
@@ -744,16 +743,11 @@ out:
  * to the current running CPU. Then, add all PMU events from that table
  * as aliases.
  */
-static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
+void pmu_add_cpu_aliases_map(struct list_head *head, struct perf_pmu *pmu,
+			     struct pmu_events_map *map)
 {
 	int i;
-	struct pmu_events_map *map;
 	const char *name = pmu->name;
-
-	map = perf_pmu__find_map(pmu);
-	if (!map)
-		return;
-
 	/*
 	 * Found a matching PMU events table. Create aliases
 	 */
@@ -788,6 +782,17 @@ new_alias:
 	}
 }
 
+static void pmu_add_cpu_aliases(struct list_head *head, struct perf_pmu *pmu)
+{
+	struct pmu_events_map *map;
+
+	map = perf_pmu__find_map(pmu);
+	if (!map)
+		return;
+
+	pmu_add_cpu_aliases_map(head, pmu, map);
+}
+
 struct perf_event_attr * __weak
 perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
 {
@@ -979,12 +984,11 @@ static int pmu_resolve_param_term(struct parse_events_term *term,
 	struct parse_events_term *t;
 
 	list_for_each_entry(t, head_terms, list) {
-		if (t->type_val == PARSE_EVENTS__TERM_TYPE_NUM) {
-			if (!strcmp(t->config, term->config)) {
-				t->used = true;
-				*value = t->val.num;
-				return 0;
-			}
+		if (t->type_val == PARSE_EVENTS__TERM_TYPE_NUM &&
+		    t->config && !strcmp(t->config, term->config)) {
+			t->used = true;
+			*value = t->val.num;
+			return 0;
 		}
 	}
 
@@ -1395,6 +1399,11 @@ static void wordwrap(char *s, int start, int max, int corr)
 	}
 }
 
+bool is_pmu_core(const char *name)
+{
+	return !strcmp(name, "cpu") || is_arm_pmu_core(name);
+}
+
 void print_pmu_events(const char *event_glob, bool name_only, bool quiet_flag,
 			bool long_desc, bool details_flag, bool deprecated)
 {