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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse Source 
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf symbols: Check '/tmp/perf-' symbol file ownership
  perf sched: Usage leftover from trace -> script rename
  perf sched: Do not delete session object prematurely
  perf tools: Check $HOME/.perfconfig ownership
  perf, x86: Add model 45 SandyBridge support
  perf tools: Add support to install perf python extension
  perf tools: do not look at ./config for configuration
  perf tools: Make clean leaves some files
  perf lock: Dropping unsupported ':r' modifier
  perf probe: Fix coredump introduced by probe module option
  jump label: Reduce the cycle count by changing the link order
  perf report: Use ui__warning in some more places
  perf python: Add PERF_RECORD_{LOST,READ,SAMPLE} routine tables
  perf evlist: Introduce 'disable' method
  trace events: Update version number reference to new 3.x scheme for EVENT_POWER_TRACING_DEPRECATED
  perf buildid-cache: Zero out buffer of filenames when adding/removing buildid
This commit is contained in:
Linus Torvalds 2011-08-11 09:03:48 -07:00
commit 1d229d54db
16 changed files with 240 additions and 69 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/kernel/cpu/perf_event_intel.c
View File

@ -1590,6 +1590,7 @@ static __init int intel_pmu_init(void)
break;
case 42: /* SandyBridge */
case 45: /* SandyBridge, "Romely-EP" */
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
sizeof(hw_cache_event_ids));

3
kernel/Makefile
View File

@ -10,7 +10,7 @@ obj-y = sched.o fork.o exec_domain.o panic.o printk.o \
kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
notifier.o ksysfs.o pm_qos_params.o sched_clock.o cred.o \
async.o range.o jump_label.o
async.o range.o
obj-y += groups.o
ifdef CONFIG_FUNCTION_TRACER
@ -107,6 +107,7 @@ obj-$(CONFIG_PERF_EVENTS) += events/
obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
obj-$(CONFIG_PADATA) += padata.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
# According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is

2
kernel/trace/Kconfig
View File

@ -82,7 +82,7 @@ config EVENT_POWER_TRACING_DEPRECATED
power:power_frequency
This is for userspace compatibility
and will vanish after 5 kernel iterations,
namely 2.6.41.
namely 3.1.
config CONTEXT_SWITCH_TRACER
bool

21
tools/perf/Makefile
View File

@ -181,9 +181,9 @@ strip-libs = $(filter-out -l%,$(1))
$(OUTPUT)python/perf.so: $(PYRF_OBJS)
$(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
--quiet build_ext \
--build-lib='$(OUTPUT)python' \
--build-temp='$(OUTPUT)python/temp'
--quiet build_ext; \
mkdir -p $(OUTPUT)python && \
cp $(PYTHON_EXTBUILD_LIB)perf.so $(OUTPUT)python/
#
# No Perl scripts right now:
#
@ -509,9 +509,13 @@ else
PYTHON_WORD := $(call shell-wordify,$(PYTHON))
python-clean := $(PYTHON_WORD) util/setup.py clean \
--build-lib='$(OUTPUT)python' \
--build-temp='$(OUTPUT)python/temp'
# python extension build directories
PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/
PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
ifdef NO_LIBPYTHON
$(call disable-python)
@ -868,6 +872,9 @@ install: all
$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
install-python_ext:
$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'
install-doc:
$(MAKE) -C Documentation install
@ -895,7 +902,7 @@ quick-install-html:
### Cleaning rules
clean:
$(RM) $(OUTPUT){*.o,*/*.o,*/*/*.o,*/*/*/*.o,$(LIB_FILE),perf-archive}
$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
$(RM) $(ALL_PROGRAMS) perf
$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
$(MAKE) -C Documentation/ clean

8
tools/perf/builtin-lock.c
View File

@ -942,10 +942,10 @@ static const char *record_args[] = {
"-f",
"-m", "1024",
"-c", "1",
"-e", "lock:lock_acquire:r",
"-e", "lock:lock_acquired:r",
"-e", "lock:lock_contended:r",
"-e", "lock:lock_release:r",
"-e", "lock:lock_acquire",
"-e", "lock:lock_acquired",
"-e", "lock:lock_contended",
"-e", "lock:lock_release",
};
static int __cmd_record(int argc, const char **argv)

19
tools/perf/builtin-record.c
View File

@ -30,8 +30,6 @@
#include <sched.h>
#include <sys/mman.h>
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
enum write_mode_t {
WRITE_FORCE,
WRITE_APPEND
@ -438,7 +436,6 @@ static void mmap_read_all(void)
static int __cmd_record(int argc, const char **argv)
{
int i;
struct stat st;
int flags;
int err;
@ -682,7 +679,6 @@ static int __cmd_record(int argc, const char **argv)
for (;;) {
int hits = samples;
int thread;
mmap_read_all();
@ -693,19 +689,8 @@ static int __cmd_record(int argc, const char **argv)
waking++;
}
if (done) {
for (i = 0; i < evsel_list->cpus->nr; i++) {
struct perf_evsel *pos;
list_for_each_entry(pos, &evsel_list->entries, node) {
for (thread = 0;
thread < evsel_list->threads->nr;
thread++)
ioctl(FD(pos, i, thread),
PERF_EVENT_IOC_DISABLE);
}
}
}
if (done)
perf_evlist__disable(evsel_list);
}
if (quiet || signr == SIGUSR1)

15
tools/perf/builtin-report.c
View File

@ -162,23 +162,22 @@ static int perf_session__setup_sample_type(struct perf_session *self)
{
if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
if (sort__has_parent) {
fprintf(stderr, "selected --sort parent, but no"
" callchain data. Did you call"
" perf record without -g?\n");
ui__warning("Selected --sort parent, but no "
"callchain data. Did you call "
"'perf record' without -g?\n");
return -EINVAL;
}
if (symbol_conf.use_callchain) {
fprintf(stderr, "selected -g but no callchain data."
" Did you call perf record without"
" -g?\n");
ui__warning("Selected -g but no callchain data. Did "
"you call 'perf record' without -g?\n");
return -1;
}
} else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE &&
!symbol_conf.use_callchain) {
symbol_conf.use_callchain = true;
if (callchain_register_param(&callchain_param) < 0) {
fprintf(stderr, "Can't register callchain"
" params\n");
ui__warning("Can't register callchain "
"params.\n");
return -EINVAL;
}
}

24
tools/perf/builtin-sched.c
View File

@ -1637,23 +1637,29 @@ static struct perf_event_ops event_ops = {
.ordered_samples = true,
};
static int read_events(void)
static void read_events(bool destroy, struct perf_session **psession)
{
int err = -EINVAL;
struct perf_session *session = perf_session__new(input_name, O_RDONLY,
0, false, &event_ops);
if (session == NULL)
return -ENOMEM;
die("No Memory");
if (perf_session__has_traces(session, "record -R")) {
err = perf_session__process_events(session, &event_ops);
if (err)
die("Failed to process events, error %d", err);
nr_events = session->hists.stats.nr_events[0];
nr_lost_events = session->hists.stats.total_lost;
nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST];
}
perf_session__delete(session);
return err;
if (destroy)
perf_session__delete(session);
if (psession)
*psession = session;
}
static void print_bad_events(void)
@ -1689,9 +1695,10 @@ static void print_bad_events(void)
static void __cmd_lat(void)
{
struct rb_node *next;
struct perf_session *session;
setup_pager();
read_events();
read_events(false, &session);
sort_lat();
printf("\n ---------------------------------------------------------------------------------------------------------------\n");
@ -1717,6 +1724,7 @@ static void __cmd_lat(void)
print_bad_events();
printf("\n");
perf_session__delete(session);
}
static struct trace_sched_handler map_ops = {
@ -1731,7 +1739,7 @@ static void __cmd_map(void)
max_cpu = sysconf(_SC_NPROCESSORS_CONF);
setup_pager();
read_events();
read_events(true, NULL);
print_bad_events();
}
@ -1744,7 +1752,7 @@ static void __cmd_replay(void)
test_calibrations();
read_events();
read_events(true, NULL);
printf("nr_run_events: %ld\n", nr_run_events);
printf("nr_sleep_events: %ld\n", nr_sleep_events);
@ -1769,7 +1777,7 @@ static void __cmd_replay(void)
static const char * const sched_usage[] = {
"perf sched [<options>] {record|latency|map|replay|trace}",
"perf sched [<options>] {record|latency|map|replay|script}",
NULL
};

34
tools/perf/util/config.c
View File

@ -399,7 +399,6 @@ static int perf_config_global(void)
int perf_config(config_fn_t fn, void *data)
{
int ret = 0, found = 0;
char *repo_config = NULL;
const char *home = NULL;
/* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
@ -414,19 +413,32 @@ int perf_config(config_fn_t fn, void *data)
home = getenv("HOME");
if (perf_config_global() && home) {
char *user_config = strdup(mkpath("%s/.perfconfig", home));
if (!access(user_config, R_OK)) {
ret += perf_config_from_file(fn, user_config, data);
found += 1;
struct stat st;
if (user_config == NULL) {
warning("Not enough memory to process %s/.perfconfig, "
"ignoring it.", home);
goto out;
}
if (stat(user_config, &st) < 0)
goto out_free;
if (st.st_uid && (st.st_uid != geteuid())) {
warning("File %s not owned by current user or root, "
"ignoring it.", user_config);
goto out_free;
}
if (!st.st_size)
goto out_free;
ret += perf_config_from_file(fn, user_config, data);
found += 1;
out_free:
free(user_config);
}
repo_config = perf_pathdup("config");
if (!access(repo_config, R_OK)) {
ret += perf_config_from_file(fn, repo_config, data);
found += 1;
}
free(repo_config);
out:
if (found == 0)
return -1;
return ret;

13
tools/perf/util/evlist.c
View File

@ -91,6 +91,19 @@ int perf_evlist__add_default(struct perf_evlist *evlist)
return 0;
}
void perf_evlist__disable(struct perf_evlist *evlist)
{
int cpu, thread;
struct perf_evsel *pos;
for (cpu = 0; cpu < evlist->cpus->nr; cpu++) {
list_for_each_entry(pos, &evlist->entries, node) {
for (thread = 0; thread < evlist->threads->nr; thread++)
ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_DISABLE);
}
}
}
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist)
{
int nfds = evlist->cpus->nr * evlist->threads->nr * evlist->nr_entries;

2
tools/perf/util/evlist.h
View File

@ -53,6 +53,8 @@ int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
void perf_evlist__munmap(struct perf_evlist *evlist);
void perf_evlist__disable(struct perf_evlist *evlist);
static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
struct cpu_map *cpus,
struct thread_map *threads)

8
tools/perf/util/header.c
View File

@ -189,8 +189,8 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
const char *name, bool is_kallsyms)
{
const size_t size = PATH_MAX;
char *realname, *filename = malloc(size),
*linkname = malloc(size), *targetname;
char *realname, *filename = zalloc(size),
*linkname = zalloc(size), *targetname;
int len, err = -1;
if (is_kallsyms) {
@ -254,8 +254,8 @@ static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir)
{
const size_t size = PATH_MAX;
char *filename = malloc(size),
*linkname = malloc(size);
char *filename = zalloc(size),
*linkname = zalloc(size);
int err = -1;
if (filename == NULL || linkname == NULL)

12
tools/perf/util/probe-event.c
View File

@ -1820,11 +1820,15 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
ret = -ENOMEM;
goto error;
}
tev->point.module = strdup(module);
if (tev->point.module == NULL) {
ret = -ENOMEM;
goto error;
if (module) {
tev->point.module = strdup(module);
if (tev->point.module == NULL) {
ret = -ENOMEM;
goto error;
}
}
tev->point.offset = pev->point.offset;
tev->point.retprobe = pev->point.retprobe;
tev->nargs = pev->nargs;

115
tools/perf/util/python.c
View File

@ -187,14 +187,117 @@ static PyTypeObject pyrf_throttle_event__type = {
.tp_repr = (reprfunc)pyrf_throttle_event__repr,
};
static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
static PyMemberDef pyrf_lost_event__members[] = {
sample_members
member_def(lost_event, id, T_ULONGLONG, "event id"),
member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
{ .name = NULL, },
};
static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
"lost: %#" PRIx64 " }",
pevent->event.lost.id, pevent->event.lost.lost) < 0) {
ret = PyErr_NoMemory();
} else {
ret = PyString_FromString(s);
free(s);
}
return ret;
}
static PyTypeObject pyrf_lost_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.lost_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_lost_event__doc,
.tp_members = pyrf_lost_event__members,
.tp_repr = (reprfunc)pyrf_lost_event__repr,
};
static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
static PyMemberDef pyrf_read_event__members[] = {
sample_members
member_def(read_event, pid, T_UINT, "event pid"),
member_def(read_event, tid, T_UINT, "event tid"),
{ .name = NULL, },
};
static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
{
return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
pevent->event.read.pid,
pevent->event.read.tid);
/*
* FIXME: return the array of read values,
* making this method useful ;-)
*/
}
static PyTypeObject pyrf_read_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.read_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_read_event__doc,
.tp_members = pyrf_read_event__members,
.tp_repr = (reprfunc)pyrf_read_event__repr,
};
static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
static PyMemberDef pyrf_sample_event__members[] = {
sample_members
member_def(perf_event_header, type, T_UINT, "event type"),
{ .name = NULL, },
};
static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
{
PyObject *ret;
char *s;
if (asprintf(&s, "{ type: sample }") < 0) {
ret = PyErr_NoMemory();
} else {
ret = PyString_FromString(s);
free(s);
}
return ret;
}
static PyTypeObject pyrf_sample_event__type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "perf.sample_event",
.tp_basicsize = sizeof(struct pyrf_event),
.tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
.tp_doc = pyrf_sample_event__doc,
.tp_members = pyrf_sample_event__members,
.tp_repr = (reprfunc)pyrf_sample_event__repr,
};
static int pyrf_event__setup_types(void)
{
int err;
pyrf_mmap_event__type.tp_new =
pyrf_task_event__type.tp_new =
pyrf_comm_event__type.tp_new =
pyrf_lost_event__type.tp_new =
pyrf_read_event__type.tp_new =
pyrf_sample_event__type.tp_new =
pyrf_throttle_event__type.tp_new = PyType_GenericNew;
err = PyType_Ready(&pyrf_mmap_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_lost_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_task_event__type);
@ -206,20 +309,26 @@ static int pyrf_event__setup_types(void)
err = PyType_Ready(&pyrf_throttle_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_read_event__type);
if (err < 0)
goto out;
err = PyType_Ready(&pyrf_sample_event__type);
if (err < 0)
goto out;
out:
return err;
}
static PyTypeObject *pyrf_event__type[] = {
[PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
[PERF_RECORD_LOST] = &pyrf_mmap_event__type,
[PERF_RECORD_LOST] = &pyrf_lost_event__type,
[PERF_RECORD_COMM] = &pyrf_comm_event__type,
[PERF_RECORD_EXIT] = &pyrf_task_event__type,
[PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_FORK] = &pyrf_task_event__type,
[PERF_RECORD_READ] = &pyrf_mmap_event__type,
[PERF_RECORD_SAMPLE] = &pyrf_mmap_event__type,
[PERF_RECORD_READ] = &pyrf_read_event__type,
[PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
};
static PyObject *pyrf_event__new(union perf_event *event)

21
tools/perf/util/setup.py
View File

@ -3,9 +3,27 @@
from distutils.core import setup, Extension
from os import getenv
from distutils.command.build_ext import build_ext as _build_ext
from distutils.command.install_lib import install_lib as _install_lib
class build_ext(_build_ext):
def finalize_options(self):
_build_ext.finalize_options(self)
self.build_lib = build_lib
self.build_temp = build_tmp
class install_lib(_install_lib):
def finalize_options(self):
_install_lib.finalize_options(self)
self.build_dir = build_lib
cflags = ['-fno-strict-aliasing', '-Wno-write-strings']
cflags += getenv('CFLAGS', '').split()
build_lib = getenv('PYTHON_EXTBUILD_LIB')
build_tmp = getenv('PYTHON_EXTBUILD_TMP')
perf = Extension('perf',
sources = ['util/python.c', 'util/ctype.c', 'util/evlist.c',
'util/evsel.c', 'util/cpumap.c', 'util/thread_map.c',
@ -21,4 +39,5 @@ setup(name='perf',
author_email='acme@redhat.com',
license='GPLv2',
url='http://perf.wiki.kernel.org',
ext_modules=[perf])
ext_modules=[perf],
cmdclass={'build_ext': build_ext, 'install_lib': install_lib})

11
tools/perf/util/symbol.c
View File

@ -1504,6 +1504,17 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
dso->adjust_symbols = 0;
if (strncmp(dso->name, "/tmp/perf-", 10) == 0) {
struct stat st;
if (stat(dso->name, &st) < 0)
return -1;
if (st.st_uid && (st.st_uid != geteuid())) {
pr_warning("File %s not owned by current user or root, "
"ignoring it.\n", dso->name);
return -1;
}
ret = dso__load_perf_map(dso, map, filter);
dso->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT :
SYMTAB__NOT_FOUND;