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Message-Id: <1394832698-322-10-git-send-email-andi@firstfloor.org>
Date: Fri, 14 Mar 2014 14:31:37 -0700
From: Andi Kleen <andi@...stfloor.org>
To: acme@...radead.org
Cc: mingo@...nel.org, linux-kernel@...r.kernel.org,
peterz@...radead.org, eranian@...gle.com, namhyung@...nel.org,
jolsa@...hat.com, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 09/10] perf, tools, test: Add test case for alias and JSON parsing
From: Andi Kleen <ak@...ux.intel.com>
Add a simple test case to perf test that runs perf download and parses
all the events. This needs adding an all event iterator to pmu.c
Signed-off-by: Andi Kleen <ak@...ux.intel.com>
---
tools/perf/Makefile.perf | 1 +
tools/perf/tests/aliases.c | 52 +++++++++++++++++++++++++++++++++++++++++
tools/perf/tests/builtin-test.c | 4 ++++
tools/perf/tests/tests.h | 1 +
tools/perf/util/pmu.c | 18 ++++++++++++++
tools/perf/util/pmu.h | 2 ++
6 files changed, 78 insertions(+)
create mode 100644 tools/perf/tests/aliases.c
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 8c4cc73..51bb490 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -416,6 +416,7 @@ endif
LIB_OBJS += $(OUTPUT)tests/code-reading.o
LIB_OBJS += $(OUTPUT)tests/sample-parsing.o
LIB_OBJS += $(OUTPUT)tests/parse-no-sample-id-all.o
+LIB_OBJS += $(OUTPUT)tests/aliases.o
ifndef NO_DWARF_UNWIND
ifeq ($(ARCH),x86)
LIB_OBJS += $(OUTPUT)tests/dwarf-unwind.o
diff --git a/tools/perf/tests/aliases.c b/tools/perf/tests/aliases.c
new file mode 100644
index 0000000..ec267d3
--- /dev/null
+++ b/tools/perf/tests/aliases.c
@@ -0,0 +1,52 @@
+/* Check if we can set up all aliases and can read JSON files */
+#include <stdlib.h>
+#include "tests.h"
+#include "pmu.h"
+#include "evlist.h"
+#include "parse-events.h"
+
+static struct perf_evlist *evlist;
+
+static int num_events;
+static int failed;
+
+static int test_event(const char *name)
+{
+ int ret = parse_events(evlist, name);
+
+ if (ret) {
+ /*
+ * We only print on failure because common perf setups
+ * have events that cannot be parsed.
+ */
+ fprintf(stderr, "invalid or unsupported event: '%s'\n", name);
+ ret = 0;
+ failed++;
+ } else
+ num_events++;
+ return ret;
+}
+
+int test__aliases(void)
+{
+ int err;
+
+ /* Download JSON files */
+ /* XXX assumes perf is installed */
+ /* For now user must manually download */
+ if (0 && system("perf download > /dev/null") < 0) {
+ /* Don't error out for this for now */
+ fprintf(stderr, "perf download failed\n");
+ }
+
+ evlist = perf_evlist__new();
+ if (evlist == NULL)
+ return -ENOMEM;
+
+ err = pmu_iterate_events(test_event);
+ fprintf(stderr, " Parsed %d events :", num_events);
+ if (failed > 0)
+ fprintf(stderr, " %d events failed", num_events);
+ perf_evlist__delete(evlist);
+ return err;
+}
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index b11bf8a..b77468d 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -115,6 +115,10 @@ static struct test {
.desc = "Test parsing with no sample_id_all bit set",
.func = test__parse_no_sample_id_all,
},
+ {
+ .desc = "Test parsing JSON aliases",
+ .func = test__aliases,
+ },
#if defined(__x86_64__) || defined(__i386__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
{
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index a24795c..d090866 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -41,6 +41,7 @@ int test__sample_parsing(void);
int test__keep_tracking(void);
int test__parse_no_sample_id_all(void);
int test__dwarf_unwind(void);
+int test__aliases(void);
#if defined(__x86_64__) || defined(__i386__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 8ae168c..fb58a51 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -869,3 +869,21 @@ bool pmu_have_event(const char *pname, const char *name)
}
return false;
}
+
+int pmu_iterate_events(int (*func)(const char *name))
+{
+ int ret = 0;
+ struct perf_pmu *pmu;
+ struct perf_pmu_alias *alias;
+
+ perf_pmu__find("cpu"); /* Load PMUs */
+ pmu = NULL;
+ while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+ list_for_each_entry(alias, &pmu->aliases, list) {
+ ret = func(alias->name);
+ if (ret != 0)
+ break;
+ }
+ }
+ return ret;
+}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 62255bb..b885c55 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -47,5 +47,7 @@ bool pmu_have_event(const char *pname, const char *name);
int perf_pmu__test(void);
+int pmu_iterate_events(int (*func)(const char *name));
+
extern const char *json_file;
#endif /* __PMU_H */
--
1.8.5.3
--
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