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Date: Sat, 20 Oct 2012 02:56:47 +0200
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: 45bff41a9a6f22af28e4ba22f83c87f619e573a8 perf python: Properly link with libtraceevent
Assorted small fixes.
Thanks,
Ingo
------------------>
Arnaldo Carvalho de Melo (4):
perf python: Initialize 'page_size' variable
perf python: Link with libtraceevent
perf hists browser: Add back callchain folding symbol
perf python: Properly link with libtraceevent
David Ahern (1):
perf tool: Precise mode requires exclude_guest
David Miller (1):
perf tools: Fix build on sparc.
Namhyung Kim (3):
perf tools: Fix segfault when using srcline sort key
perf tools: Remove warnings on JIT samples for srcline sort key
perf hists browser: Fix off-by-two bug on the first column
Peter Zijlstra (1):
perf: Require exclude_guest to use PEBS - kernel side enforcement
Steven Rostedt (2):
lib tools traceevent: Add back pevent assignment in __pevent_parse_format()
tools lib traceevent: Fix missed freeing of subargs in free_arg() in filter
arch/x86/kernel/cpu/perf_event.c | 6 ++++++
tools/lib/traceevent/event-parse.c | 9 ++++++---
tools/lib/traceevent/parse-filter.c | 15 +++++++++++++++
tools/perf/Makefile | 24 +++++++++++++-----------
tools/perf/perf.h | 2 +-
tools/perf/ui/browsers/hists.c | 6 ++++--
tools/perf/util/parse-events.c | 3 +++
tools/perf/util/setup.py | 2 ++
tools/perf/util/sort.c | 6 ++++++
9 files changed, 56 insertions(+), 17 deletions(-)
diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 915b876..3373f84 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -338,6 +338,9 @@ int x86_setup_perfctr(struct perf_event *event)
/* BTS is currently only allowed for user-mode. */
if (!attr->exclude_kernel)
return -EOPNOTSUPP;
+
+ if (!attr->exclude_guest)
+ return -EOPNOTSUPP;
}
hwc->config |= config;
@@ -380,6 +383,9 @@ int x86_pmu_hw_config(struct perf_event *event)
if (event->attr.precise_ip) {
int precise = 0;
+ if (!event->attr.exclude_guest)
+ return -EOPNOTSUPP;
+
/* Support for constant skid */
if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
precise++;
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 47264b4..f2989c5 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -2602,6 +2602,9 @@ find_func_handler(struct pevent *pevent, char *func_name)
{
struct pevent_function_handler *func;
+ if (!pevent)
+ return NULL;
+
for (func = pevent->func_handlers; func; func = func->next) {
if (strcmp(func->name, func_name) == 0)
break;
@@ -4938,6 +4941,9 @@ enum pevent_errno __pevent_parse_format(struct event_format **eventp,
goto event_alloc_failed;
}
+ /* Add pevent to event so that it can be referenced */
+ event->pevent = pevent;
+
ret = event_read_format(event);
if (ret < 0) {
ret = PEVENT_ERRNO__READ_FORMAT_FAILED;
@@ -5041,9 +5047,6 @@ enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
if (event == NULL)
return ret;
- /* Add pevent to event so that it can be referenced */
- event->pevent = pevent;
-
if (add_event(pevent, event)) {
ret = PEVENT_ERRNO__MEM_ALLOC_FAILED;
goto event_add_failed;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index ad17855..5ea4326 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -209,7 +209,16 @@ static void free_arg(struct filter_arg *arg)
switch (arg->type) {
case FILTER_ARG_NONE:
case FILTER_ARG_BOOLEAN:
+ break;
+
case FILTER_ARG_NUM:
+ free_arg(arg->num.left);
+ free_arg(arg->num.right);
+ break;
+
+ case FILTER_ARG_EXP:
+ free_arg(arg->exp.left);
+ free_arg(arg->exp.right);
break;
case FILTER_ARG_STR:
@@ -218,6 +227,12 @@ static void free_arg(struct filter_arg *arg)
free(arg->str.buffer);
break;
+ case FILTER_ARG_VALUE:
+ if (arg->value.type == FILTER_STRING ||
+ arg->value.type == FILTER_CHAR)
+ free(arg->value.str);
+ break;
+
case FILTER_ARG_OP:
free_arg(arg->op.left);
free_arg(arg->op.right);
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index f7c968a..00deed4d 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -184,9 +184,22 @@ SCRIPT_SH += perf-archive.sh
grep-libs = $(filter -l%,$(1))
strip-libs = $(filter-out -l%,$(1))
+TRACE_EVENT_DIR = ../lib/traceevent/
+
+ifneq ($(OUTPUT),)
+ TE_PATH=$(OUTPUT)
+else
+ TE_PATH=$(TRACE_EVENT_DIR)
+endif
+
+LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
+TE_LIB := -L$(TE_PATH) -ltraceevent
+
PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py
+export LIBTRACEEVENT
+
$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
$(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
--quiet build_ext; \
@@ -198,17 +211,6 @@ $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))
-TRACE_EVENT_DIR = ../lib/traceevent/
-
-ifneq ($(OUTPUT),)
- TE_PATH=$(OUTPUT)
-else
- TE_PATH=$(TRACE_EVENT_DIR)
-endif
-
-LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
-TE_LIB := -L$(TE_PATH) -ltraceevent
-
#
# Single 'perf' binary right now:
#
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 2762877..c50985e 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -57,7 +57,7 @@ void get_term_dimensions(struct winsize *ws);
#endif
#ifdef __sparc__
-#include "../../arch/sparc/include/asm/unistd.h"
+#include "../../arch/sparc/include/uapi/asm/unistd.h"
#define rmb() asm volatile("":::"memory")
#define cpu_relax() asm volatile("":::"memory")
#define CPUINFO_PROC "cpu"
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 0568536..ef2f93c 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -610,6 +610,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
char folded_sign = ' ';
bool current_entry = ui_browser__is_current_entry(&browser->b, row);
off_t row_offset = entry->row_offset;
+ bool first = true;
if (current_entry) {
browser->he_selection = entry;
@@ -633,10 +634,11 @@ static int hist_browser__show_entry(struct hist_browser *browser,
if (!perf_hpp__format[i].cond)
continue;
- if (i) {
+ if (!first) {
slsmg_printf(" ");
width -= 2;
}
+ first = false;
if (perf_hpp__format[i].color) {
hpp.ptr = &percent;
@@ -645,7 +647,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
ui_browser__set_percent_color(&browser->b, percent, current_entry);
- if (i == 0 && symbol_conf.use_callchain) {
+ if (i == PERF_HPP__OVERHEAD && symbol_conf.use_callchain) {
slsmg_printf("%c ", folded_sign);
width -= 2;
}
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index aed38e4..75c7b0f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -690,6 +690,9 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
eH = 0;
} else if (*str == 'p') {
precise++;
+ /* use of precise requires exclude_guest */
+ if (!exclude_GH)
+ eG = 1;
} else
break;
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index d0f9f29..73d5102 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -23,6 +23,7 @@ cflags += getenv('CFLAGS', '').split()
build_lib = getenv('PYTHON_EXTBUILD_LIB')
build_tmp = getenv('PYTHON_EXTBUILD_TMP')
+libtraceevent = getenv('LIBTRACEEVENT')
ext_sources = [f.strip() for f in file('util/python-ext-sources')
if len(f.strip()) > 0 and f[0] != '#']
@@ -31,6 +32,7 @@ perf = Extension('perf',
sources = ext_sources,
include_dirs = ['util/include'],
extra_compile_args = cflags,
+ extra_objects = [libtraceevent],
)
setup(name='perf',
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index b5b1b92..cfd1c0f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -260,6 +260,12 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
if (path != NULL)
goto out_path;
+ if (!self->ms.map)
+ goto out_ip;
+
+ if (!strncmp(self->ms.map->dso->long_name, "/tmp/perf-", 10))
+ goto out_ip;
+
snprintf(cmd, sizeof(cmd), "addr2line -e %s %016" PRIx64,
self->ms.map->dso->long_name, self->ip);
fp = popen(cmd, "r");
--
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