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Message-ID: <20140125073034.GA9143@gmail.com>
Date: Sat, 25 Jan 2014 08:30:34 +0100
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org,
Arnaldo Carvalho de Melo <acme@...radead.org>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Thomas Gleixner <tglx@...utronix.de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] perf fixes
Linus,
Please pull the latest perf-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf-urgent-for-linus
# HEAD: 993e5ee67a90c7b6a5dbb61b9c31df2955afff46 Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
A handful of tooling fixes.
Thanks,
Ingo
------------------>
Alan Cox (1):
perf tools: Ensure sscanf does not overrun the "mem" field
Baruch Siach (1):
perf tools: Add support for the xtensa architecture
Josh Boyer (1):
perf tools: Fix traceevent plugin path definitions
Masami Hiramatsu (1):
perf symbols: Load map before using map->map_ip()
Namhyung Kim (1):
perf symbols: Fix JIT symbol resolution on heap
Stanislav Fomichev (2):
perf timechart: Fix wrong SVG height
perf session: Free cpu_map in perf_session__cpu_bitmap
Stephane Eranian (3):
perf stat: fix NULL pointer reference bug with event unit
perf evsel: Remove duplicate member zeroing after free
perf stat: Fix memory corruption of xyarray when cpumask is used
tools/lib/traceevent/Makefile | 2 +-
tools/perf/builtin-timechart.c | 3 +++
tools/perf/config/Makefile | 2 +-
tools/perf/perf.h | 7 +++++++
tools/perf/util/evlist.c | 7 +++++--
tools/perf/util/evsel.c | 1 -
tools/perf/util/header.c | 2 +-
tools/perf/util/map.c | 7 ++++---
tools/perf/util/parse-events.c | 2 +-
tools/perf/util/pmu.c | 24 ++++++++++++++++++++----
tools/perf/util/pmu.h | 2 +-
tools/perf/util/session.c | 10 +++++++---
12 files changed, 51 insertions(+), 18 deletions(-)
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 56d52a3..005c9cc 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -63,7 +63,7 @@ endif
endif
ifeq ($(set_plugin_dir),1)
-PLUGIN_DIR = -DPLUGIN_DIR="$(DESTDIR)/$(plugin_dir)"
+PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
endif
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 652af0b..25526d6 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1045,6 +1045,9 @@ static void write_svg_file(struct timechart *tchart, const char *filename)
thresh /= 10;
} while (!process_filter && thresh && count < tchart->proc_num);
+ if (!tchart->proc_num)
+ count = 0;
+
open_svg(filename, tchart->numcpus, count, tchart->first_time, tchart->last_time);
svg_time_grid();
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index d604e50..c48d449 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -600,5 +600,5 @@ perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
# Otherwise we install plugins into the global $(libdir).
ifdef DESTDIR
plugindir=$(libdir)/traceevent/plugins
-plugindir_SQ= $(subst ','\'',$(prefix)/$(plugindir))
+plugindir_SQ= $(subst ','\'',$(plugindir))
endif
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 3c2f213..7daa806 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -132,6 +132,13 @@
#define CPUINFO_PROC "CPU"
#endif
+#ifdef __xtensa__
+#define mb() asm volatile("memw" ::: "memory")
+#define wmb() asm volatile("memw" ::: "memory")
+#define rmb() asm volatile("" ::: "memory")
+#define CPUINFO_PROC "core ID"
+#endif
+
#define barrier() asm volatile ("" ::: "memory")
#ifndef cpu_relax
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 40bd2c0..59ef280 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1003,9 +1003,12 @@ void perf_evlist__close(struct perf_evlist *evlist)
struct perf_evsel *evsel;
int ncpus = cpu_map__nr(evlist->cpus);
int nthreads = thread_map__nr(evlist->threads);
+ int n;
- evlist__for_each_reverse(evlist, evsel)
- perf_evsel__close(evsel, ncpus, nthreads);
+ evlist__for_each_reverse(evlist, evsel) {
+ n = evsel->cpus ? evsel->cpus->nr : ncpus;
+ perf_evsel__close(evsel, n, nthreads);
+ }
}
int perf_evlist__open(struct perf_evlist *evlist)
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 22e18a2..55407c5 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1081,7 +1081,6 @@ void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads)
perf_evsel__close_fd(evsel, ncpus, nthreads);
perf_evsel__free_fd(evsel);
- evsel->fd = NULL;
}
static struct {
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index bb3e0ed..893f8e2 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -930,7 +930,7 @@ static int write_topo_node(int fd, int node)
/* skip over invalid lines */
if (!strchr(buf, ':'))
continue;
- if (sscanf(buf, "%*s %*d %s %"PRIu64, field, &mem) != 2)
+ if (sscanf(buf, "%*s %*d %31s %"PRIu64, field, &mem) != 2)
goto done;
if (!strcmp(field, "MemTotal:"))
mem_total = mem;
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 9b9bd71..3b97513 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -69,7 +69,7 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
map->ino = ino;
map->ino_generation = ino_gen;
- if (anon) {
+ if ((anon || no_dso) && type == MAP__FUNCTION) {
snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid);
filename = newfilename;
}
@@ -93,7 +93,7 @@ struct map *map__new(struct list_head *dsos__list, u64 start, u64 len,
* functions still return NULL, and we avoid the
* unnecessary map__load warning.
*/
- if (no_dso)
+ if (type != MAP__FUNCTION)
dso__set_loaded(dso, map->type);
}
}
@@ -386,7 +386,8 @@ struct symbol *map_groups__find_symbol(struct map_groups *mg,
{
struct map *map = map_groups__find(mg, type, addr);
- if (map != NULL) {
+ /* Ensure map is loaded before using map->map_ip */
+ if (map != NULL && map__load(map, filter) >= 0) {
if (mapp != NULL)
*mapp = map;
return map__find_symbol(map, map->map_ip(map, addr), filter);
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index a7f1b6a..d248fca 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -635,7 +635,7 @@ int parse_events_add_pmu(struct list_head *list, int *idx,
struct perf_event_attr attr;
struct perf_pmu *pmu;
struct perf_evsel *evsel;
- char *unit;
+ const char *unit;
double scale;
pmu = perf_pmu__find(name);
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index d9cab4d..b752ecb 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -105,7 +105,7 @@ static int perf_pmu__parse_scale(struct perf_pmu_alias *alias, char *dir, char *
char scale[128];
int fd, ret = -1;
char path[PATH_MAX];
- char *lc;
+ const char *lc;
snprintf(path, PATH_MAX, "%s/%s.scale", dir, name);
@@ -609,7 +609,7 @@ static struct perf_pmu_alias *pmu_find_alias(struct perf_pmu *pmu,
static int check_unit_scale(struct perf_pmu_alias *alias,
- char **unit, double *scale)
+ const char **unit, double *scale)
{
/*
* Only one term in event definition can
@@ -634,14 +634,18 @@ static int check_unit_scale(struct perf_pmu_alias *alias,
* defined for the alias
*/
int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
- char **unit, double *scale)
+ const char **unit, double *scale)
{
struct parse_events_term *term, *h;
struct perf_pmu_alias *alias;
int ret;
+ /*
+ * Mark unit and scale as not set
+ * (different from default values, see below)
+ */
*unit = NULL;
- *scale = 0;
+ *scale = 0.0;
list_for_each_entry_safe(term, h, head_terms, list) {
alias = pmu_find_alias(pmu, term);
@@ -658,6 +662,18 @@ int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
list_del(&term->list);
free(term);
}
+
+ /*
+ * if no unit or scale foundin aliases, then
+ * set defaults as for evsel
+ * unit cannot left to NULL
+ */
+ if (*unit == NULL)
+ *unit = "";
+
+ if (*scale == 0.0)
+ *scale = 1.0;
+
return 0;
}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 9183380..8b64125 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -29,7 +29,7 @@ int perf_pmu__config_terms(struct list_head *formats,
struct perf_event_attr *attr,
struct list_head *head_terms);
int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
- char **unit, double *scale);
+ const char **unit, double *scale);
struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
struct list_head *head_terms);
int perf_pmu_wrap(void);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 7acc03e..0b39a48 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1573,7 +1573,7 @@ next:
int perf_session__cpu_bitmap(struct perf_session *session,
const char *cpu_list, unsigned long *cpu_bitmap)
{
- int i;
+ int i, err = -1;
struct cpu_map *map;
for (i = 0; i < PERF_TYPE_MAX; ++i) {
@@ -1602,13 +1602,17 @@ int perf_session__cpu_bitmap(struct perf_session *session,
if (cpu >= MAX_NR_CPUS) {
pr_err("Requested CPU %d too large. "
"Consider raising MAX_NR_CPUS\n", cpu);
- return -1;
+ goto out_delete_map;
}
set_bit(cpu, cpu_bitmap);
}
- return 0;
+ err = 0;
+
+out_delete_map:
+ cpu_map__delete(map);
+ return err;
}
void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
--
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