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perf/core improvements and fixes: 

. Check maximum frequency rate for record/top, emitting better error
   messages, from Jiri Olsa.
 
 . Disable live kvm command if timerfd is not supported, from David Ahern.
 
 . Add usage to 'perf list', from David Ahern.
 
 . Fix detection of non-core features, from David Ahern.
 
 . Consolidate __hists__add_*entry(), cleanup from Namhyung Kim.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

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

  * Check maximum frequency rate for record/top, emitting better error
    messages, from Jiri Olsa.

  * Disable live kvm command if timerfd is not supported, from David Ahern.

  * Add usage to 'perf list', from David Ahern.

  * Fix detection of non-core features, from David Ahern.

  * Consolidate __hists__add_*entry(), cleanup from Namhyung Kim.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2013-11-06 06:28:23 +01:00
parent 87968f94fb 316c7136f8
commit 83bf9702c8
45 changed files with 591 additions and 497 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/Makefile.perf
View File

@ -242,7 +242,7 @@ LIB_H += util/cache.h
LIB_H += util/callchain.h
LIB_H += util/build-id.h
LIB_H += util/debug.h
LIB_H += util/sysfs.h
LIB_H += util/fs.h
LIB_H += util/pmu.h
LIB_H += util/event.h
LIB_H += util/evsel.h
@ -304,7 +304,7 @@ LIB_OBJS += $(OUTPUT)util/annotate.o
LIB_OBJS += $(OUTPUT)util/build-id.o
LIB_OBJS += $(OUTPUT)util/config.o
LIB_OBJS += $(OUTPUT)util/ctype.o
LIB_OBJS += $(OUTPUT)util/sysfs.o
LIB_OBJS += $(OUTPUT)util/fs.o
LIB_OBJS += $(OUTPUT)util/pmu.o
LIB_OBJS += $(OUTPUT)util/environment.o
LIB_OBJS += $(OUTPUT)util/event.o

2
tools/perf/builtin-annotate.c
View File

@ -65,7 +65,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
return 0;
}
he = __hists__add_entry(&evsel->hists, al, NULL, 1, 1, 0);
he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 1, 1, 0);
if (he == NULL)
return -ENOMEM;

3
tools/perf/builtin-diff.c
View File

@ -307,7 +307,8 @@ static int hists__add_entry(struct hists *hists,
struct addr_location *al, u64 period,
u64 weight, u64 transaction)
{
if (__hists__add_entry(hists, al, NULL, period, weight, transaction) != NULL)
if (__hists__add_entry(hists, al, NULL, NULL, NULL, period, weight,
transaction) != NULL)
return 0;
return -ENOMEM;
}

12
tools/perf/builtin-kvm.c
View File

@ -20,7 +20,9 @@
#include "util/data.h"
#include <sys/prctl.h>
#ifdef HAVE_TIMERFD_SUPPORT
#include <sys/timerfd.h>
#endif
#include <termios.h>
#include <semaphore.h>
@ -337,6 +339,7 @@ static void init_kvm_event_record(struct perf_kvm_stat *kvm)
INIT_LIST_HEAD(&kvm->kvm_events_cache[i]);
}
#ifdef HAVE_TIMERFD_SUPPORT
static void clear_events_cache_stats(struct list_head *kvm_events_cache)
{
struct list_head *head;
@ -358,6 +361,7 @@ static void clear_events_cache_stats(struct list_head *kvm_events_cache)
}
}
}
#endif
static int kvm_events_hash_fn(u64 key)
{
@ -783,6 +787,7 @@ static void print_result(struct perf_kvm_stat *kvm)
pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events);
}
#ifdef HAVE_TIMERFD_SUPPORT
static int process_lost_event(struct perf_tool *tool,
union perf_event *event __maybe_unused,
struct perf_sample *sample __maybe_unused,
@ -793,6 +798,7 @@ static int process_lost_event(struct perf_tool *tool,
kvm->lost_events++;
return 0;
}
#endif
static bool skip_sample(struct perf_kvm_stat *kvm,
struct perf_sample *sample)
@ -872,6 +878,7 @@ static bool verify_vcpu(int vcpu)
return true;
}
#ifdef HAVE_TIMERFD_SUPPORT
/* keeping the max events to a modest level to keep
* the processing of samples per mmap smooth.
*/
@ -1213,6 +1220,7 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm)
out:
return rc;
}
#endif
static int read_events(struct perf_kvm_stat *kvm)
{
@ -1379,6 +1387,7 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv)
return kvm_events_report_vcpu(kvm);
}
#ifdef HAVE_TIMERFD_SUPPORT
static struct perf_evlist *kvm_live_event_list(void)
{
struct perf_evlist *evlist;
@ -1566,6 +1575,7 @@ out:
return err;
}
#endif
static void print_kvm_stat_usage(void)
{
@ -1604,8 +1614,10 @@ static int kvm_cmd_stat(const char *file_name, int argc, const char **argv)
if (!strncmp(argv[1], "rep", 3))
return kvm_events_report(&kvm, argc - 1 , argv + 1);
#ifdef HAVE_TIMERFD_SUPPORT
if (!strncmp(argv[1], "live", 4))
return kvm_events_live(&kvm, argc - 1 , argv + 1);
#endif
perf_stat:
return cmd_stat(argc, argv, NULL);

84
tools/perf/builtin-list.c
View File

@ -14,51 +14,63 @@
#include "util/parse-events.h"
#include "util/cache.h"
#include "util/pmu.h"
#include "util/parse-options.h"
int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
{
int i;
const struct option list_options[] = {
OPT_END()
};
const char * const list_usage[] = {
"perf list [hw|sw|cache|tracepoint|pmu|event_glob]",
NULL
};
argc = parse_options(argc, argv, list_options, list_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
setup_pager();
if (argc == 1)
if (argc == 0) {
print_events(NULL, false);
else {
int i;
return 0;
}
for (i = 1; i < argc; ++i) {
if (i > 2)
putchar('\n');
if (strncmp(argv[i], "tracepoint", 10) == 0)
print_tracepoint_events(NULL, NULL, false);
else if (strcmp(argv[i], "hw") == 0 ||
strcmp(argv[i], "hardware") == 0)
print_events_type(PERF_TYPE_HARDWARE);
else if (strcmp(argv[i], "sw") == 0 ||
strcmp(argv[i], "software") == 0)
print_events_type(PERF_TYPE_SOFTWARE);
else if (strcmp(argv[i], "cache") == 0 ||
strcmp(argv[i], "hwcache") == 0)
print_hwcache_events(NULL, false);
else if (strcmp(argv[i], "pmu") == 0)
print_pmu_events(NULL, false);
else if (strcmp(argv[i], "--raw-dump") == 0)
print_events(NULL, true);
else {
char *sep = strchr(argv[i], ':'), *s;
int sep_idx;
for (i = 0; i < argc; ++i) {
if (i)
putchar('\n');
if (strncmp(argv[i], "tracepoint", 10) == 0)
print_tracepoint_events(NULL, NULL, false);
else if (strcmp(argv[i], "hw") == 0 ||
strcmp(argv[i], "hardware") == 0)
print_events_type(PERF_TYPE_HARDWARE);
else if (strcmp(argv[i], "sw") == 0 ||
strcmp(argv[i], "software") == 0)
print_events_type(PERF_TYPE_SOFTWARE);
else if (strcmp(argv[i], "cache") == 0 ||
strcmp(argv[i], "hwcache") == 0)
print_hwcache_events(NULL, false);
else if (strcmp(argv[i], "pmu") == 0)
print_pmu_events(NULL, false);
else if (strcmp(argv[i], "--raw-dump") == 0)
print_events(NULL, true);
else {
char *sep = strchr(argv[i], ':'), *s;
int sep_idx;
if (sep == NULL) {
print_events(argv[i], false);
continue;
}
sep_idx = sep - argv[i];
s = strdup(argv[i]);
if (s == NULL)
return -1;
s[sep_idx] = '\0';
print_tracepoint_events(s, s + sep_idx + 1, false);
free(s);
if (sep == NULL) {
print_events(argv[i], false);
continue;
}
sep_idx = sep - argv[i];
s = strdup(argv[i]);
if (s == NULL)
return -1;
s[sep_idx] = '\0';
print_tracepoint_events(s, s + sep_idx + 1, false);
free(s);
}
}
return 0;

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

@ -958,20 +958,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
if (perf_evlist__create_maps(evsel_list, &rec->opts.target) < 0)
usage_with_options(record_usage, record_options);
if (rec->opts.user_interval != ULLONG_MAX)
rec->opts.default_interval = rec->opts.user_interval;
if (rec->opts.user_freq != UINT_MAX)
rec->opts.freq = rec->opts.user_freq;
/*
* User specified count overrides default frequency.
*/
if (rec->opts.default_interval)
rec->opts.freq = 0;
else if (rec->opts.freq) {
rec->opts.default_interval = rec->opts.freq;
} else {
ui__error("frequency and count are zero, aborting\n");
if (perf_record_opts__config(&rec->opts)) {
err = -EINVAL;
goto out_free_fd;
}

16
tools/perf/builtin-report.c
View File

@ -115,7 +115,8 @@ static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
* and this is indirectly achieved by passing period=weight here
* and the he_stat__add_period() function.
*/
he = __hists__add_mem_entry(&evsel->hists, al, parent, mi, cost, cost);
he = __hists__add_entry(&evsel->hists, al, parent, NULL, mi,
cost, cost, 0);
if (!he)
return -ENOMEM;
@ -200,12 +201,16 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
err = -ENOMEM;
/* overwrite the 'al' to branch-to info */
al->map = bi[i].to.map;
al->sym = bi[i].to.sym;
al->addr = bi[i].to.addr;
/*
* The report shows the percentage of total branches captured
* and not events sampled. Thus we use a pseudo period of 1.
*/
he = __hists__add_branch_entry(&evsel->hists, al, parent,
&bi[i], 1, 1);
he = __hists__add_entry(&evsel->hists, al, parent, &bi[i], NULL,
1, 1, 0);
if (he) {
struct annotation *notes;
bx = he->branch_info;
@ -266,8 +271,9 @@ static int perf_evsel__add_hist_entry(struct perf_tool *tool,
return err;
}
he = __hists__add_entry(&evsel->hists, al, parent, sample->period,
sample->weight, sample->transaction);
he = __hists__add_entry(&evsel->hists, al, parent, NULL, NULL,
sample->period, sample->weight,
sample->transaction);
if (he == NULL)
return -ENOMEM;

20
tools/perf/builtin-top.c
View File

@ -246,8 +246,9 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
struct hist_entry *he;
pthread_mutex_lock(&evsel->hists.lock);
he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
sample->weight, sample->transaction);
he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL,
sample->period, sample->weight,
sample->transaction);
pthread_mutex_unlock(&evsel->hists.lock);
if (he == NULL)
return NULL;
@ -1208,20 +1209,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
if (top.delay_secs < 1)
top.delay_secs = 1;
if (opts->user_interval != ULLONG_MAX)
opts->default_interval = opts->user_interval;
if (opts->user_freq != UINT_MAX)
opts->freq = opts->user_freq;
/*
* User specified count overrides default frequency.
*/
if (opts->default_interval)
opts->freq = 0;
else if (opts->freq) {
opts->default_interval = opts->freq;
} else {
ui__error("frequency and count are zero, aborting\n");
if (perf_record_opts__config(opts)) {
status = -EINVAL;
goto out_delete_maps;
}

17
tools/perf/config/Makefile
View File

@ -98,7 +98,7 @@ endif
feature_check = $(eval $(feature_check_code))
define feature_check_code
feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS="$(LDFLAGS)" LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
endef
feature_set = $(eval $(feature_set_code))
@ -235,7 +235,7 @@ CFLAGS += -I$(LIB_INCLUDE)
CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
ifndef NO_BIONIC
$(feature_check,bionic)
$(call feature_check,bionic)
ifeq ($(feature-bionic), 1)
BIONIC := 1
EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
@ -397,6 +397,13 @@ else
endif
endif
$(call feature_check,timerfd)
ifeq ($(feature-timerfd), 1)
CFLAGS += -DHAVE_TIMERFD_SUPPORT
else
msg := $(warning No timerfd support. Disables 'perf kvm stat live');
endif
disable-python = $(eval $(disable-python_code))
define disable-python_code
CFLAGS += -DNO_LIBPYTHON
@ -472,15 +479,15 @@ else
CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
else
ifneq ($(feature-libbfd), 1)
$(feature_check,liberty)
$(call feature_check,liberty)
ifeq ($(feature-liberty), 1)
EXTLIBS += -lbfd -liberty
else
$(feature_check,liberty-z)
$(call feature_check,liberty-z)
ifeq ($(feature-liberty-z), 1)
EXTLIBS += -lbfd -liberty -lz
else
$(feature_check,cplus-demangle)
$(call feature_check,cplus-demangle)
ifeq ($(feature-cplus-demangle), 1)
EXTLIBS += -liberty
CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT

6
tools/perf/config/feature-checks/Makefile
View File

@ -25,7 +25,8 @@ FILES= \
test-libunwind \
test-on-exit \
test-stackprotector-all \
test-stackprotector
test-stackprotector \
test-timerfd
CC := $(CC) -MD
@ -136,6 +137,9 @@ test-on-exit:
test-backtrace:
$(BUILD)
test-timerfd:
$(BUILD)
-include *.d
###############################

5
tools/perf/config/feature-checks/test-all.c
View File

@ -81,6 +81,10 @@
# include "test-libnuma.c"
#undef main
#define main main_test_timerfd
# include "test-timerfd.c"
#undef main
int main(int argc, char *argv[])
{
main_test_libpython();
@ -101,6 +105,7 @@ int main(int argc, char *argv[])
main_test_on_exit();
main_test_backtrace();
main_test_libnuma();
main_test_timerfd();
return 0;
}

18
tools/perf/config/feature-checks/test-timerfd.c Normal file
View File

@ -0,0 +1,18 @@
/*
* test for timerfd functions used by perf-kvm-stat-live
*/
#include <sys/timerfd.h>
int main(void)
{
struct itimerspec new_value;
int fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
if (fd < 0)
return 1;
if (timerfd_settime(fd, 0, &new_value, NULL) != 0)
return 1;
return 0;
}

6
tools/perf/scripts/python/Perf-Trace-Util/Context.c
View File

@ -25,7 +25,7 @@
PyMODINIT_FUNC initperf_trace_context(void);
static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args)
static PyObject *perf_trace_context_common_pc(PyObject *obj, PyObject *args)
{
static struct scripting_context *scripting_context;
PyObject *context;
@ -40,7 +40,7 @@ static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args)
return Py_BuildValue("i", retval);
}
static PyObject *perf_trace_context_common_flags(PyObject *self,
static PyObject *perf_trace_context_common_flags(PyObject *obj,
PyObject *args)
{
static struct scripting_context *scripting_context;
@ -56,7 +56,7 @@ static PyObject *perf_trace_context_common_flags(PyObject *self,
return Py_BuildValue("i", retval);
}
static PyObject *perf_trace_context_common_lock_depth(PyObject *self,
static PyObject *perf_trace_context_common_lock_depth(PyObject *obj,
PyObject *args)
{
static struct scripting_context *scripting_context;

6
tools/perf/tests/hists_link.c
View File

@ -223,7 +223,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
goto out;
he = __hists__add_entry(&evsel->hists, &al, NULL,
1, 1, 0);
NULL, NULL, 1, 1, 0);
if (he == NULL)
goto out;
@ -245,8 +245,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
&sample) < 0)
goto out;
he = __hists__add_entry(&evsel->hists, &al, NULL, 1, 1,
0);
he = __hists__add_entry(&evsel->hists, &al, NULL,
NULL, NULL, 1, 1, 0);
if (he == NULL)
goto out;

6
tools/perf/tests/parse-events.c
View File

@ -2,7 +2,7 @@
#include "parse-events.h"
#include "evsel.h"
#include "evlist.h"
#include "sysfs.h"
#include "fs.h"
#include <lk/debugfs.h>
#include "tests.h"
#include <linux/hw_breakpoint.h>
@ -1456,7 +1456,7 @@ static int test_pmu(void)
int ret;
snprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu/format/",
sysfs_find_mountpoint());
sysfs__mountpoint());
ret = stat(path, &st);
if (ret)
@ -1473,7 +1473,7 @@ static int test_pmu_events(void)
int ret;
snprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu/events/",
sysfs_find_mountpoint());
sysfs__mountpoint());
ret = stat(path, &st);
if (ret) {

32
tools/perf/ui/browser.h
View File

@ -21,32 +21,32 @@ struct ui_browser {
void *priv;
const char *title;
char *helpline;
unsigned int (*refresh)(struct ui_browser *self);
void (*write)(struct ui_browser *self, void *entry, int row);
void (*seek)(struct ui_browser *self, off_t offset, int whence);
bool (*filter)(struct ui_browser *self, void *entry);
unsigned int (*refresh)(struct ui_browser *browser);
void (*write)(struct ui_browser *browser, void *entry, int row);
void (*seek)(struct ui_browser *browser, off_t offset, int whence);
bool (*filter)(struct ui_browser *browser, void *entry);
u32 nr_entries;
bool navkeypressed;
bool use_navkeypressed;
};
int ui_browser__set_color(struct ui_browser *browser, int color);
void ui_browser__set_percent_color(struct ui_browser *self,
void ui_browser__set_percent_color(struct ui_browser *browser,
double percent, bool current);
bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row);
void ui_browser__refresh_dimensions(struct ui_browser *self);
void ui_browser__reset_index(struct ui_browser *self);
bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row);
void ui_browser__refresh_dimensions(struct ui_browser *browser);
void ui_browser__reset_index(struct ui_browser *browser);
void ui_browser__gotorc(struct ui_browser *self, int y, int x);
void ui_browser__gotorc(struct ui_browser *browser, int y, int x);
void ui_browser__write_graph(struct ui_browser *browser, int graph);
void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
u64 start, u64 end);
void __ui_browser__show_title(struct ui_browser *browser, const char *title);
void ui_browser__show_title(struct ui_browser *browser, const char *title);
int ui_browser__show(struct ui_browser *self, const char *title,
int ui_browser__show(struct ui_browser *browser, const char *title,
const char *helpline, ...);
void ui_browser__hide(struct ui_browser *self);
int ui_browser__refresh(struct ui_browser *self);
void ui_browser__hide(struct ui_browser *browser);
int ui_browser__refresh(struct ui_browser *browser);
int ui_browser__run(struct ui_browser *browser, int delay_secs);
void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries);
void ui_browser__handle_resize(struct ui_browser *browser);
@ -63,11 +63,11 @@ int ui_browser__input_window(const char *title, const char *text, char *input,
void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence);
unsigned int ui_browser__argv_refresh(struct ui_browser *browser);
void ui_browser__rb_tree_seek(struct ui_browser *self, off_t offset, int whence);
unsigned int ui_browser__rb_tree_refresh(struct ui_browser *self);
void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence);
unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser);
void ui_browser__list_head_seek(struct ui_browser *self, off_t offset, int whence);
unsigned int ui_browser__list_head_refresh(struct ui_browser *self);
void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence);
unsigned int ui_browser__list_head_refresh(struct ui_browser *browser);
void ui_browser__init(void);
void annotate_browser__init(void);

2
tools/perf/ui/browsers/hists.c
View File

@ -1889,7 +1889,7 @@ out:
return key;
}
static bool filter_group_entries(struct ui_browser *self __maybe_unused,
static bool filter_group_entries(struct ui_browser *browser __maybe_unused,
void *entry)
{
struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);

40
tools/perf/ui/browsers/map.c
View File

@ -18,30 +18,30 @@ struct map_browser {
u8 addrlen;
};
static void map_browser__write(struct ui_browser *self, void *nd, int row)
static void map_browser__write(struct ui_browser *browser, void *nd, int row)
{
struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
struct map_browser *mb = container_of(self, struct map_browser, b);
bool current_entry = ui_browser__is_current_entry(self, row);
struct map_browser *mb = container_of(browser, struct map_browser, b);
bool current_entry = ui_browser__is_current_entry(browser, row);
int width;
ui_browser__set_percent_color(self, 0, current_entry);
ui_browser__set_percent_color(browser, 0, current_entry);
slsmg_printf("%*" PRIx64 " %*" PRIx64 " %c ",
mb->addrlen, sym->start, mb->addrlen, sym->end,
sym->binding == STB_GLOBAL ? 'g' :
sym->binding == STB_LOCAL ? 'l' : 'w');
width = self->width - ((mb->addrlen * 2) + 4);
width = browser->width - ((mb->addrlen * 2) + 4);
if (width > 0)
slsmg_write_nstring(sym->name, width);
}
/* FIXME uber-kludgy, see comment on cmd_report... */
static u32 *symbol__browser_index(struct symbol *self)
static u32 *symbol__browser_index(struct symbol *browser)
{
return ((void *)self) - sizeof(struct rb_node) - sizeof(u32);
return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
}
static int map_browser__search(struct map_browser *self)
static int map_browser__search(struct map_browser *browser)
{
char target[512];
struct symbol *sym;
@ -53,37 +53,37 @@ static int map_browser__search(struct map_browser *self)
if (target[0] == '0' && tolower(target[1]) == 'x') {
u64 addr = strtoull(target, NULL, 16);
sym = map__find_symbol(self->map, addr, NULL);
sym = map__find_symbol(browser->map, addr, NULL);
} else
sym = map__find_symbol_by_name(self->map, target, NULL);
sym = map__find_symbol_by_name(browser->map, target, NULL);
if (sym != NULL) {
u32 *idx = symbol__browser_index(sym);
self->b.top = &sym->rb_node;
self->b.index = self->b.top_idx = *idx;
browser->b.top = &sym->rb_node;
browser->b.index = browser->b.top_idx = *idx;
} else
ui_helpline__fpush("%s not found!", target);
return 0;
}
static int map_browser__run(struct map_browser *self)
static int map_browser__run(struct map_browser *browser)
{
int key;
if (ui_browser__show(&self->b, self->map->dso->long_name,
if (ui_browser__show(&browser->b, browser->map->dso->long_name,
"Press <- or ESC to exit, %s / to search",
verbose ? "" : "restart with -v to use") < 0)
return -1;
while (1) {
key = ui_browser__run(&self->b, 0);
key = ui_browser__run(&browser->b, 0);
switch (key) {
case '/':
if (verbose)
map_browser__search(self);
map_browser__search(browser);
default:
break;
case K_LEFT:
@ -94,20 +94,20 @@ static int map_browser__run(struct map_browser *self)
}
}
out:
ui_browser__hide(&self->b);
ui_browser__hide(&browser->b);
return key;
}
int map__browse(struct map *self)
int map__browse(struct map *map)
{
struct map_browser mb = {
.b = {
.entries = &self->dso->symbols[self->type],
.entries = &map->dso->symbols[map->type],
.refresh = ui_browser__rb_tree_refresh,
.seek = ui_browser__rb_tree_seek,
.write = map_browser__write,
},
.map = self,
.map = map,
};
struct rb_node *nd;
char tmp[BITS_PER_LONG / 4];

2
tools/perf/ui/browsers/map.h
View File

@ -2,5 +2,5 @@
#define _PERF_UI_MAP_BROWSER_H_ 1
struct map;
int map__browse(struct map *self);
int map__browse(struct map *map);
#endif /* _PERF_UI_MAP_BROWSER_H_ */

8
tools/perf/ui/browsers/scripts.c
View File

@ -84,22 +84,22 @@ static void script_browser__write(struct ui_browser *browser,
slsmg_write_nstring(sline->line, browser->width);
}
static int script_browser__run(struct perf_script_browser *self)
static int script_browser__run(struct perf_script_browser *browser)
{
int key;
if (ui_browser__show(&self->b, self->script_name,
if (ui_browser__show(&browser->b, browser->script_name,
"Press <- or ESC to exit") < 0)
return -1;
while (1) {
key = ui_browser__run(&self->b, 0);
key = ui_browser__run(&browser->b, 0);
/* We can add some special key handling here if needed */
break;
}
ui_browser__hide(&self->b);
ui_browser__hide(&browser->b);
return key;
}

14
tools/perf/ui/stdio/hist.c
View File

@ -213,20 +213,19 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
return ret;
}
static size_t __callchain__fprintf_flat(FILE *fp,
struct callchain_node *self,
static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
u64 total_samples)
{
struct callchain_list *chain;
size_t ret = 0;
if (!self)
if (!node)
return 0;
ret += __callchain__fprintf_flat(fp, self->parent, total_samples);
ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
list_for_each_entry(chain, &self->val, list) {
list_for_each_entry(chain, &node->val, list) {
if (chain->ip >= PERF_CONTEXT_MAX)
continue;
if (chain->ms.sym)
@ -239,15 +238,14 @@ static size_t __callchain__fprintf_flat(FILE *fp,
return ret;
}
static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,
static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
u64 total_samples)
{
size_t ret = 0;
u32 entries_printed = 0;
struct rb_node *rb_node;
struct callchain_node *chain;
struct rb_node *rb_node = rb_first(tree);
rb_node = rb_first(self);
while (rb_node) {
double percent;

3
tools/perf/util/build-id.h
View File

@ -10,10 +10,9 @@ extern struct perf_tool build_id__mark_dso_hit_ops;
struct dso;
int build_id__sprintf(const u8 *build_id, int len, char *bf);
char *dso__build_id_filename(struct dso *self, char *bf, size_t size);
char *dso__build_id_filename(struct dso *dso, char *bf, size_t size);
int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
struct perf_sample *sample, struct perf_evsel *evsel,
struct machine *machine);
#endif

6
tools/perf/util/cpumap.c
View File

@ -1,5 +1,5 @@
#include "util.h"
#include "sysfs.h"
#include "fs.h"
#include "../perf.h"
#include "cpumap.h"
#include <assert.h>
@ -216,7 +216,7 @@ int cpu_map__get_socket(struct cpu_map *map, int idx)
cpu = map->map[idx];
mnt = sysfs_find_mountpoint();
mnt = sysfs__mountpoint();
if (!mnt)
return -1;
@ -279,7 +279,7 @@ int cpu_map__get_core(struct cpu_map *map, int idx)
cpu = map->map[idx];
mnt = sysfs_find_mountpoint();
mnt = sysfs__mountpoint();
if (!mnt)
return -1;

6
tools/perf/util/event.c
View File

@ -617,15 +617,15 @@ int perf_event__process(struct perf_tool *tool __maybe_unused,
return machine__process_event(machine, event, sample);
}
void thread__find_addr_map(struct thread *self,
void thread__find_addr_map(struct thread *thread,
struct machine *machine, u8 cpumode,
enum map_type type, u64 addr,
struct addr_location *al)
{
struct map_groups *mg = &self->mg;
struct map_groups *mg = &thread->mg;
bool load_map = false;
al->thread = self;
al->thread = thread;
al->addr = addr;
al->cpumode = cpumode;
al->filtered = false;

3
tools/perf/util/event.h
View File

@ -251,7 +251,8 @@ int perf_event__process(struct perf_tool *tool,
struct machine *machine);
struct addr_location;
int perf_event__preprocess_sample(const union perf_event *self,
int perf_event__preprocess_sample(const union perf_event *event,
struct machine *machine,
struct addr_location *al,
struct perf_sample *sample);

3
tools/perf/util/evlist.h
View File

@ -88,7 +88,7 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
@ -99,6 +99,7 @@ void perf_evlist__set_id_pos(struct perf_evlist *evlist);
bool perf_can_sample_identifier(void);
void perf_evlist__config(struct perf_evlist *evlist,
struct perf_record_opts *opts);
int perf_record_opts__config(struct perf_record_opts *opts);
int perf_evlist__prepare_workload(struct perf_evlist *evlist,
struct perf_target *target,

119
tools/perf/util/fs.c Normal file
View File

@ -0,0 +1,119 @@
/* TODO merge/factor into tools/lib/lk/debugfs.c */
#include "util.h"
#include "util/fs.h"
static const char * const sysfs__fs_known_mountpoints[] = {
"/sys",
0,
};
static const char * const procfs__known_mountpoints[] = {
"/proc",
0,
};
struct fs {
const char *name;
const char * const *mounts;
char path[PATH_MAX + 1];
bool found;
long magic;
};
enum {
FS__SYSFS = 0,
FS__PROCFS = 1,
};
static struct fs fs__entries[] = {
[FS__SYSFS] = {
.name = "sysfs",
.mounts = sysfs__fs_known_mountpoints,
.magic = SYSFS_MAGIC,
},
[FS__PROCFS] = {
.name = "proc",
.mounts = procfs__known_mountpoints,
.magic = PROC_SUPER_MAGIC,
},
};
static bool fs__read_mounts(struct fs *fs)
{
bool found = false;
char type[100];
FILE *fp;
fp = fopen("/proc/mounts", "r");
if (fp == NULL)
return NULL;
while (!found &&
fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
fs->path, type) == 2) {
if (strcmp(type, fs->name) == 0)
found = true;
}
fclose(fp);
return fs->found = found;
}
static int fs__valid_mount(const char *fs, long magic)
{
struct statfs st_fs;
if (statfs(fs, &st_fs) < 0)
return -ENOENT;
else if (st_fs.f_type != magic)
return -ENOENT;
return 0;
}
static bool fs__check_mounts(struct fs *fs)
{
const char * const *ptr;
ptr = fs->mounts;
while (*ptr) {
if (fs__valid_mount(*ptr, fs->magic) == 0) {
fs->found = true;
strcpy(fs->path, *ptr);
return true;
}
ptr++;
}
return false;
}
static const char *fs__get_mountpoint(struct fs *fs)
{
if (fs__check_mounts(fs))
return fs->path;
return fs__read_mounts(fs) ? fs->path : NULL;
}
static const char *fs__mountpoint(int idx)
{
struct fs *fs = &fs__entries[idx];
if (fs->found)
return (const char *)fs->path;
return fs__get_mountpoint(fs);
}
#define FS__MOUNTPOINT(name, idx) \
const char *name##__mountpoint(void) \
{ \
return fs__mountpoint(idx); \
}
FS__MOUNTPOINT(sysfs, FS__SYSFS);
FS__MOUNTPOINT(procfs, FS__PROCFS);

7
tools/perf/util/fs.h Normal file
View File

@ -0,0 +1,7 @@
#ifndef __PERF_FS
#define __PERF_FS
const char *sysfs__mountpoint(void);
const char *procfs__mountpoint(void);
#endif /* __PERF_FS */

75
tools/perf/util/hist.c
View File

@ -407,73 +407,12 @@ out:
return he;
}
struct hist_entry *__hists__add_mem_entry(struct hists *hists,
struct addr_location *al,
struct symbol *sym_parent,
struct mem_info *mi,
u64 period,
u64 weight)
{
struct hist_entry entry = {
.thread = al->thread,
.comm = thread__comm(al->thread),
.ms = {
.map = al->map,
.sym = al->sym,
},
.stat = {
.period = period,
.weight = weight,
.nr_events = 1,
},
.cpu = al->cpu,
.ip = al->addr,
.level = al->level,
.parent = sym_parent,
.filtered = symbol__parent_filter(sym_parent),
.hists = hists,
.mem_info = mi,
.branch_info = NULL,
};
return add_hist_entry(hists, &entry, al, period, weight);
}
struct hist_entry *__hists__add_branch_entry(struct hists *hists,
struct addr_location *al,
struct symbol *sym_parent,
struct branch_info *bi,
u64 period,
u64 weight)
{
struct hist_entry entry = {
.thread = al->thread,
.comm = thread__comm(al->thread),
.ms = {
.map = bi->to.map,
.sym = bi->to.sym,
},
.cpu = al->cpu,
.ip = bi->to.addr,
.level = al->level,
.stat = {
.period = period,
.nr_events = 1,
.weight = weight,
},
.parent = sym_parent,
.filtered = symbol__parent_filter(sym_parent),
.branch_info = bi,
.hists = hists,
.mem_info = NULL,
};
return add_hist_entry(hists, &entry, al, period, weight);
}
struct hist_entry *__hists__add_entry(struct hists *hists,
struct addr_location *al,
struct symbol *sym_parent, u64 period,
u64 weight, u64 transaction)
struct symbol *sym_parent,
struct branch_info *bi,
struct mem_info *mi,
u64 period, u64 weight, u64 transaction)
{
struct hist_entry entry = {
.thread = al->thread,
@ -486,15 +425,15 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
.ip = al->addr,
.level = al->level,
.stat = {
.period = period,
.nr_events = 1,
.period = period,
.weight = weight,
},
.parent = sym_parent,
.filtered = symbol__parent_filter(sym_parent),
.hists = hists,
.branch_info = NULL,
.mem_info = NULL,
.branch_info = bi,
.mem_info = mi,
.transaction = transaction,
};

51
tools/perf/util/hist.h
View File

@ -84,55 +84,43 @@ struct hists {
u16 col_len[HISTC_NR_COLS];
};
struct hist_entry *__hists__add_entry(struct hists *self,
struct hist_entry *__hists__add_entry(struct hists *hists,
struct addr_location *al,
struct symbol *parent, u64 period,
struct symbol *parent,
struct branch_info *bi,
struct mem_info *mi, u64 period,
u64 weight, u64 transaction);
int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
int hist_entry__transaction_len(void);
int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
struct hists *hists);
void hist_entry__free(struct hist_entry *);
struct hist_entry *__hists__add_branch_entry(struct hists *self,
struct addr_location *al,
struct symbol *sym_parent,
struct branch_info *bi,
u64 period,
u64 weight);
struct hist_entry *__hists__add_mem_entry(struct hists *self,
struct addr_location *al,
struct symbol *sym_parent,
struct mem_info *mi,
u64 period,
u64 weight);
void hists__output_resort(struct hists *self);
void hists__collapse_resort(struct hists *self, struct ui_progress *prog);
void hists__output_resort(struct hists *hists);
void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
void hists__output_recalc_col_len(struct hists *hists, int max_rows);
void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h);
void hists__inc_nr_events(struct hists *self, u32 type);
void hists__inc_nr_events(struct hists *hists, u32 type);
void events_stats__inc(struct events_stats *stats, u32 type);
size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);
size_t hists__fprintf(struct hists *self, bool show_header, int max_rows,
size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
int max_cols, float min_pcnt, FILE *fp);
int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
int hist_entry__annotate(struct hist_entry *self, size_t privsize);
int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
int hist_entry__annotate(struct hist_entry *he, size_t privsize);
void hists__filter_by_dso(struct hists *hists);
void hists__filter_by_thread(struct hists *hists);
void hists__filter_by_symbol(struct hists *hists);
u16 hists__col_len(struct hists *self, enum hist_column col);
void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
u16 hists__col_len(struct hists *hists, enum hist_column col);
void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
void hists__reset_col_len(struct hists *hists);
void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
@ -222,12 +210,9 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
return 0;
}
static inline int hist_entry__tui_annotate(struct hist_entry *self
__maybe_unused,
struct perf_evsel *evsel
__maybe_unused,
struct hist_browser_timer *hbt
__maybe_unused)
static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
struct perf_evsel *evsel __maybe_unused,
struct hist_browser_timer *hbt __maybe_unused)
{
return 0;
}
@ -242,5 +227,5 @@ static inline int script_browse(const char *script_opt __maybe_unused)
#define K_SWITCH_INPUT_DATA -3000
#endif
unsigned int hists__sort_list_width(struct hists *self);
unsigned int hists__sort_list_width(struct hists *hists);
#endif /* __PERF_HIST_H */

4
tools/perf/util/include/linux/magic.h
View File

@ -9,4 +9,8 @@
#define SYSFS_MAGIC 0x62656572
#endif
#ifndef PROC_SUPER_MAGIC
#define PROC_SUPER_MAGIC 0x9fa0
#endif
#endif

17
tools/perf/util/pmu.c
View File

@ -4,7 +4,7 @@
#include <unistd.h>
#include <stdio.h>
#include <dirent.h>
#include "sysfs.h"
#include "fs.h"
#include "util.h"
#include "pmu.h"
#include "parse-events.h"
@ -77,9 +77,8 @@ static int pmu_format(const char *name, struct list_head *format)
{
struct stat st;
char path[PATH_MAX];
const char *sysfs;
const char *sysfs = sysfs__mountpoint();
sysfs = sysfs_find_mountpoint();
if (!sysfs)
return -1;
@ -166,9 +165,8 @@ static int pmu_aliases(const char *name, struct list_head *head)
{
struct stat st;
char path[PATH_MAX];
const char *sysfs;
const char *sysfs = sysfs__mountpoint();
sysfs = sysfs_find_mountpoint();
if (!sysfs)
return -1;
@ -212,11 +210,10 @@ static int pmu_type(const char *name, __u32 *type)
{
struct stat st;
char path[PATH_MAX];
const char *sysfs;
FILE *file;
int ret = 0;
const char *sysfs = sysfs__mountpoint();
sysfs = sysfs_find_mountpoint();
if (!sysfs)
return -1;
@ -241,11 +238,10 @@ static int pmu_type(const char *name, __u32 *type)
static void pmu_read_sysfs(void)
{
char path[PATH_MAX];
const char *sysfs;
DIR *dir;
struct dirent *dent;
const char *sysfs = sysfs__mountpoint();
sysfs = sysfs_find_mountpoint();
if (!sysfs)
return;
@ -270,11 +266,10 @@ static struct cpu_map *pmu_cpumask(const char *name)
{
struct stat st;
char path[PATH_MAX];
const char *sysfs;
FILE *file;
struct cpu_map *cpus;
const char *sysfs = sysfs__mountpoint();
sysfs = sysfs_find_mountpoint();
if (!sysfs)
return NULL;

113
tools/perf/util/probe-finder.c
View File

@ -115,7 +115,7 @@ static const Dwfl_Callbacks offline_callbacks = {
};
/* Get a Dwarf from offline image */
static int debuginfo__init_offline_dwarf(struct debuginfo *self,
static int debuginfo__init_offline_dwarf(struct debuginfo *dbg,
const char *path)
{
int fd;
@ -124,25 +124,25 @@ static int debuginfo__init_offline_dwarf(struct debuginfo *self,
if (fd < 0)
return fd;
self->dwfl = dwfl_begin(&offline_callbacks);
if (!self->dwfl)
dbg->dwfl = dwfl_begin(&offline_callbacks);
if (!dbg->dwfl)
goto error;
self->mod = dwfl_report_offline(self->dwfl, "", "", fd);
if (!self->mod)
dbg->mod = dwfl_report_offline(dbg->dwfl, "", "", fd);
if (!dbg->mod)
goto error;
self->dbg = dwfl_module_getdwarf(self->mod, &self->bias);
if (!self->dbg)
dbg->dbg = dwfl_module_getdwarf(dbg->mod, &dbg->bias);
if (!dbg->dbg)
goto error;
return 0;
error:
if (self->dwfl)
dwfl_end(self->dwfl);
if (dbg->dwfl)
dwfl_end(dbg->dwfl);
else
close(fd);
memset(self, 0, sizeof(*self));
memset(dbg, 0, sizeof(*dbg));
return -ENOENT;
}
@ -180,24 +180,24 @@ static const Dwfl_Callbacks kernel_callbacks = {
};
/* Get a Dwarf from live kernel image */
static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
static int debuginfo__init_online_kernel_dwarf(struct debuginfo *dbg,
Dwarf_Addr addr)
{
self->dwfl = dwfl_begin(&kernel_callbacks);
if (!self->dwfl)
dbg->dwfl = dwfl_begin(&kernel_callbacks);
if (!dbg->dwfl)
return -EINVAL;
/* Load the kernel dwarves: Don't care the result here */
dwfl_linux_kernel_report_kernel(self->dwfl);
dwfl_linux_kernel_report_modules(self->dwfl);
dwfl_linux_kernel_report_kernel(dbg->dwfl);
dwfl_linux_kernel_report_modules(dbg->dwfl);
self->dbg = dwfl_addrdwarf(self->dwfl, addr, &self->bias);
dbg->dbg = dwfl_addrdwarf(dbg->dwfl, addr, &dbg->bias);
/* Here, check whether we could get a real dwarf */
if (!self->dbg) {
if (!dbg->dbg) {
pr_debug("Failed to find kernel dwarf at %lx\n",
(unsigned long)addr);
dwfl_end(self->dwfl);
memset(self, 0, sizeof(*self));
dwfl_end(dbg->dwfl);
memset(dbg, 0, sizeof(*dbg));
return -ENOENT;
}
@ -205,7 +205,7 @@ static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
}
#else
/* With older elfutils, this just support kernel module... */
static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
static int debuginfo__init_online_kernel_dwarf(struct debuginfo *dbg,
Dwarf_Addr addr __maybe_unused)
{
const char *path = kernel_get_module_path("kernel");
@ -216,44 +216,45 @@ static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
}
pr_debug2("Use file %s for debuginfo\n", path);
return debuginfo__init_offline_dwarf(self, path);
return debuginfo__init_offline_dwarf(dbg, path);
}
#endif
struct debuginfo *debuginfo__new(const char *path)
{
struct debuginfo *self = zalloc(sizeof(struct debuginfo));
if (!self)
struct debuginfo *dbg = zalloc(sizeof(*dbg));
if (!dbg)
return NULL;
if (debuginfo__init_offline_dwarf(self, path) < 0) {
free(self);
self = NULL;
if (debuginfo__init_offline_dwarf(dbg, path) < 0) {
free(dbg);
dbg = NULL;
}
return self;
return dbg;
}
struct debuginfo *debuginfo__new_online_kernel(unsigned long addr)
{
struct debuginfo *self = zalloc(sizeof(struct debuginfo));
if (!self)
struct debuginfo *dbg = zalloc(sizeof(*dbg));
if (!dbg)
return NULL;
if (debuginfo__init_online_kernel_dwarf(self, (Dwarf_Addr)addr) < 0) {
free(self);
self = NULL;
if (debuginfo__init_online_kernel_dwarf(dbg, (Dwarf_Addr)addr) < 0) {
free(dbg);
dbg = NULL;
}
return self;
return dbg;
}
void debuginfo__delete(struct debuginfo *self)
void debuginfo__delete(struct debuginfo *dbg)
{
if (self) {
if (self->dwfl)
dwfl_end(self->dwfl);
free(self);
if (dbg) {
if (dbg->dwfl)
dwfl_end(dbg->dwfl);
free(dbg);
}
}
@ -1083,7 +1084,7 @@ static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data)
}
/* Find probe points from debuginfo */
static int debuginfo__find_probes(struct debuginfo *self,
static int debuginfo__find_probes(struct debuginfo *dbg,
struct probe_finder *pf)
{
struct perf_probe_point *pp = &pf->pev->point;
@ -1094,7 +1095,7 @@ static int debuginfo__find_probes(struct debuginfo *self,
#if _ELFUTILS_PREREQ(0, 142)
/* Get the call frame information from this dwarf */
pf->cfi = dwarf_getcfi(self->dbg);
pf->cfi = dwarf_getcfi(dbg->dbg);
#endif
off = 0;
@ -1113,7 +1114,7 @@ static int debuginfo__find_probes(struct debuginfo *self,
.data = pf,
};
dwarf_getpubnames(self->dbg, pubname_search_cb,
dwarf_getpubnames(dbg->dbg, pubname_search_cb,
&pubname_param, 0);
if (pubname_param.found) {
ret = probe_point_search_cb(&pf->sp_die, &probe_param);
@ -1123,9 +1124,9 @@ static int debuginfo__find_probes(struct debuginfo *self,
}
/* Loop on CUs (Compilation Unit) */
while (!dwarf_nextcu(self->dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
while (!dwarf_nextcu(dbg->dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
/* Get the DIE(Debugging Information Entry) of this CU */
diep = dwarf_offdie(self->dbg, off + cuhl, &pf->cu_die);
diep = dwarf_offdie(dbg->dbg, off + cuhl, &pf->cu_die);
if (!diep)
continue;
@ -1281,13 +1282,13 @@ end:
}
/* Find probe_trace_events specified by perf_probe_event from debuginfo */
int debuginfo__find_trace_events(struct debuginfo *self,
int debuginfo__find_trace_events(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct probe_trace_event **tevs, int max_tevs)
{
struct trace_event_finder tf = {
.pf = {.pev = pev, .callback = add_probe_trace_event},
.mod = self->mod, .max_tevs = max_tevs};
.mod = dbg->mod, .max_tevs = max_tevs};
int ret;
/* Allocate result tevs array */
@ -1298,7 +1299,7 @@ int debuginfo__find_trace_events(struct debuginfo *self,
tf.tevs = *tevs;
tf.ntevs = 0;
ret = debuginfo__find_probes(self, &tf.pf);
ret = debuginfo__find_probes(dbg, &tf.pf);
if (ret < 0) {
free(*tevs);
*tevs = NULL;
@ -1389,14 +1390,14 @@ out:
}
/* Find available variables at given probe point */
int debuginfo__find_available_vars_at(struct debuginfo *self,
int debuginfo__find_available_vars_at(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct variable_list **vls,
int max_vls, bool externs)
{
struct available_var_finder af = {
.pf = {.pev = pev, .callback = add_available_vars},
.mod = self->mod,
.mod = dbg->mod,
.max_vls = max_vls, .externs = externs};
int ret;
@ -1408,7 +1409,7 @@ int debuginfo__find_available_vars_at(struct debuginfo *self,
af.vls = *vls;
af.nvls = 0;
ret = debuginfo__find_probes(self, &af.pf);
ret = debuginfo__find_probes(dbg, &af.pf);
if (ret < 0) {
/* Free vlist for error */
while (af.nvls--) {
@ -1426,7 +1427,7 @@ int debuginfo__find_available_vars_at(struct debuginfo *self,
}
/* Reverse search */
int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
struct perf_probe_point *ppt)
{
Dwarf_Die cudie, spdie, indie;
@ -1435,10 +1436,10 @@ int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
int baseline = 0, lineno = 0, ret = 0;
/* Adjust address with bias */
addr += self->bias;
addr += dbg->bias;
/* Find cu die */
if (!dwarf_addrdie(self->dbg, (Dwarf_Addr)addr - self->bias, &cudie)) {
if (!dwarf_addrdie(dbg->dbg, (Dwarf_Addr)addr - dbg->bias, &cudie)) {
pr_warning("Failed to find debug information for address %lx\n",
addr);
ret = -EINVAL;
@ -1639,7 +1640,7 @@ static int find_line_range_by_func(struct line_finder *lf)
return param.retval;
}
int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr)
{
struct line_finder lf = {.lr = lr, .found = 0};
int ret = 0;
@ -1656,7 +1657,7 @@ int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
struct dwarf_callback_param line_range_param = {
.data = (void *)&lf, .retval = 0};
dwarf_getpubnames(self->dbg, pubname_search_cb,
dwarf_getpubnames(dbg->dbg, pubname_search_cb,
&pubname_param, 0);
if (pubname_param.found) {
line_range_search_cb(&lf.sp_die, &line_range_param);
@ -1667,12 +1668,12 @@ int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
/* Loop on CUs (Compilation Unit) */
while (!lf.found && ret >= 0) {
if (dwarf_nextcu(self->dbg, off, &noff, &cuhl,
if (dwarf_nextcu(dbg->dbg, off, &noff, &cuhl,
NULL, NULL, NULL) != 0)
break;
/* Get the DIE(Debugging Information Entry) of this CU */
diep = dwarf_offdie(self->dbg, off + cuhl, &lf.cu_die);
diep = dwarf_offdie(dbg->dbg, off + cuhl, &lf.cu_die);
if (!diep)
continue;

10
tools/perf/util/probe-finder.h
View File

@ -31,25 +31,25 @@ struct debuginfo {
extern struct debuginfo *debuginfo__new(const char *path);
extern struct debuginfo *debuginfo__new_online_kernel(unsigned long addr);
extern void debuginfo__delete(struct debuginfo *self);
extern void debuginfo__delete(struct debuginfo *dbg);
/* Find probe_trace_events specified by perf_probe_event from debuginfo */
extern int debuginfo__find_trace_events(struct debuginfo *self,
extern int debuginfo__find_trace_events(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct probe_trace_event **tevs,
int max_tevs);
/* Find a perf_probe_point from debuginfo */
extern int debuginfo__find_probe_point(struct debuginfo *self,
extern int debuginfo__find_probe_point(struct debuginfo *dbg,
unsigned long addr,
struct perf_probe_point *ppt);
/* Find a line range */
extern int debuginfo__find_line_range(struct debuginfo *self,
extern int debuginfo__find_line_range(struct debuginfo *dbg,
struct line_range *lr);
/* Find available variables */
extern int debuginfo__find_available_vars_at(struct debuginfo *self,
extern int debuginfo__find_available_vars_at(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct variable_list **vls,
int max_points, bool externs);

10
tools/perf/util/pstack.h
View File

@ -5,10 +5,10 @@
struct pstack;
struct pstack *pstack__new(unsigned short max_nr_entries);
void pstack__delete(struct pstack *self);
bool pstack__empty(const struct pstack *self);
void pstack__remove(struct pstack *self, void *key);
void pstack__push(struct pstack *self, void *key);
void *pstack__pop(struct pstack *self);
void pstack__delete(struct pstack *pstack);
bool pstack__empty(const struct pstack *pstack);
void pstack__remove(struct pstack *pstack, void *key);
void pstack__push(struct pstack *pstack, void *key);
void *pstack__pop(struct pstack *pstack);
#endif /* _PERF_PSTACK_ */

2
tools/perf/util/python-ext-sources
View File

@ -17,5 +17,5 @@ util/xyarray.c
util/cgroup.c
util/rblist.c
util/strlist.c
util/sysfs.c
util/fs.c
../../lib/rbtree.c

71
tools/perf/util/record.c
View File

@ -2,6 +2,8 @@
#include "evsel.h"
#include "cpumap.h"
#include "parse-events.h"
#include "fs.h"
#include "util.h"
typedef void (*setup_probe_fn_t)(struct perf_evsel *evsel);
@ -106,3 +108,72 @@ void perf_evlist__config(struct perf_evlist *evlist,
perf_evlist__set_id_pos(evlist);
}
static int get_max_rate(unsigned int *rate)
{
char path[PATH_MAX];
const char *procfs = procfs__mountpoint();
if (!procfs)
return -1;
snprintf(path, PATH_MAX,
"%s/sys/kernel/perf_event_max_sample_rate", procfs);
return filename__read_int(path, (int *) rate);
}
static int perf_record_opts__config_freq(struct perf_record_opts *opts)
{
bool user_freq = opts->user_freq != UINT_MAX;
unsigned int max_rate;
if (opts->user_interval != ULLONG_MAX)
opts->default_interval = opts->user_interval;
if (user_freq)
opts->freq = opts->user_freq;
/*
* User specified count overrides default frequency.
*/
if (opts->default_interval)
opts->freq = 0;
else if (opts->freq) {
opts->default_interval = opts->freq;
} else {
pr_err("frequency and count are zero, aborting\n");
return -1;
}
if (get_max_rate(&max_rate))
return 0;
/*
* User specified frequency is over current maximum.
*/
if (user_freq && (max_rate < opts->freq)) {
pr_err("Maximum frequency rate (%u) reached.\n"
"Please use -F freq option with lower value or consider\n"
"tweaking /proc/sys/kernel/perf_event_max_sample_rate.\n",
max_rate);
return -1;
}
/*
* Default frequency is over current maximum.
*/
if (max_rate < opts->freq) {
pr_warning("Lowering default frequency rate to %u.\n"
"Please consider tweaking "
"/proc/sys/kernel/perf_event_max_sample_rate.\n",
max_rate);
opts->freq = max_rate;
}
return 0;
}
int perf_record_opts__config(struct perf_record_opts *opts)
{
return perf_record_opts__config_freq(opts);
}

121
tools/perf/util/session.c
View File

@ -16,11 +16,11 @@
#include "perf_regs.h"
#include "vdso.h"
static int perf_session__open(struct perf_session *self)
static int perf_session__open(struct perf_session *session)
{
struct perf_data_file *file = self->file;
struct perf_data_file *file = session->file;
if (perf_session__read_header(self) < 0) {
if (perf_session__read_header(session) < 0) {
pr_err("incompatible file format (rerun with -v to learn more)");
return -1;
}
@ -28,17 +28,17 @@ static int perf_session__open(struct perf_session *self)
if (perf_data_file__is_pipe(file))
return 0;
if (!perf_evlist__valid_sample_type(self->evlist)) {
if (!perf_evlist__valid_sample_type(session->evlist)) {
pr_err("non matching sample_type");
return -1;
}
if (!perf_evlist__valid_sample_id_all(self->evlist)) {
if (!perf_evlist__valid_sample_id_all(session->evlist)) {
pr_err("non matching sample_id_all");
return -1;
}
if (!perf_evlist__valid_read_format(self->evlist)) {
if (!perf_evlist__valid_read_format(session->evlist)) {
pr_err("non matching read_format");
return -1;
}
@ -53,46 +53,45 @@ void perf_session__set_id_hdr_size(struct perf_session *session)
machines__set_id_hdr_size(&session->machines, id_hdr_size);
}
int perf_session__create_kernel_maps(struct perf_session *self)
int perf_session__create_kernel_maps(struct perf_session *session)
{
int ret = machine__create_kernel_maps(&self->machines.host);
int ret = machine__create_kernel_maps(&session->machines.host);
if (ret >= 0)
ret = machines__create_guest_kernel_maps(&self->machines);
ret = machines__create_guest_kernel_maps(&session->machines);
return ret;
}
static void perf_session__destroy_kernel_maps(struct perf_session *self)
static void perf_session__destroy_kernel_maps(struct perf_session *session)
{
machines__destroy_kernel_maps(&self->machines);
machines__destroy_kernel_maps(&session->machines);
}
struct perf_session *perf_session__new(struct perf_data_file *file,
bool repipe, struct perf_tool *tool)
{
struct perf_session *self;
struct perf_session *session = zalloc(sizeof(*session));
self = zalloc(sizeof(*self));
if (!self)
if (!session)
goto out;
self->repipe = repipe;
INIT_LIST_HEAD(&self->ordered_samples.samples);
INIT_LIST_HEAD(&self->ordered_samples.sample_cache);
INIT_LIST_HEAD(&self->ordered_samples.to_free);
machines__init(&self->machines);
session->repipe = repipe;
INIT_LIST_HEAD(&session->ordered_samples.samples);
INIT_LIST_HEAD(&session->ordered_samples.sample_cache);
INIT_LIST_HEAD(&session->ordered_samples.to_free);
machines__init(&session->machines);
if (file) {
if (perf_data_file__open(file))
goto out_delete;
self->file = file;
session->file = file;
if (perf_data_file__is_read(file)) {
if (perf_session__open(self) < 0)
if (perf_session__open(session) < 0)
goto out_close;
perf_session__set_id_hdr_size(self);
perf_session__set_id_hdr_size(session);
}
}
@ -101,22 +100,22 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
* In O_RDONLY mode this will be performed when reading the
* kernel MMAP event, in perf_event__process_mmap().
*/
if (perf_session__create_kernel_maps(self) < 0)
if (perf_session__create_kernel_maps(session) < 0)
goto out_delete;
}
if (tool && tool->ordering_requires_timestamps &&
tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) {
tool->ordered_samples && !perf_evlist__sample_id_all(session->evlist)) {
dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
tool->ordered_samples = false;
}
return self;
return session;
out_close:
perf_data_file__close(file);
out_delete:
perf_session__delete(self);
perf_session__delete(session);
out:
return NULL;
}
@ -147,16 +146,16 @@ static void perf_session_env__delete(struct perf_session_env *env)
free(env->pmu_mappings);
}
void perf_session__delete(struct perf_session *self)
void perf_session__delete(struct perf_session *session)
{
perf_session__destroy_kernel_maps(self);
perf_session__delete_dead_threads(self);
perf_session__delete_threads(self);
perf_session_env__delete(&self->header.env);
machines__exit(&self->machines);
if (self->file)
perf_data_file__close(self->file);
free(self);
perf_session__destroy_kernel_maps(session);
perf_session__delete_dead_threads(session);
perf_session__delete_threads(session);
perf_session_env__delete(&session->header.env);
machines__exit(&session->machines);
if (session->file)
perf_data_file__close(session->file);
free(session);
vdso__exit();
}
@ -1084,11 +1083,11 @@ static int perf_session__process_event(struct perf_session *session,
file_offset);
}
void perf_event_header__bswap(struct perf_event_header *self)
void perf_event_header__bswap(struct perf_event_header *hdr)
{
self->type = bswap_32(self->type);
self->misc = bswap_16(self->misc);
self->size = bswap_16(self->size);
hdr->type = bswap_32(hdr->type);
hdr->misc = bswap_16(hdr->misc);
hdr->size = bswap_16(hdr->size);
}
struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
@ -1096,9 +1095,9 @@ struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
return machine__findnew_thread(&session->machines.host, 0, pid);
}
static struct thread *perf_session__register_idle_thread(struct perf_session *self)
static struct thread *perf_session__register_idle_thread(struct perf_session *session)
{
struct thread *thread = perf_session__findnew(self, 0);
struct thread *thread = perf_session__findnew(session, 0);
if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
pr_err("problem inserting idle task.\n");
@ -1150,10 +1149,10 @@ static void perf_session__warn_about_errors(const struct perf_session *session,
volatile int session_done;
static int __perf_session__process_pipe_events(struct perf_session *self,
static int __perf_session__process_pipe_events(struct perf_session *session,
struct perf_tool *tool)
{
int fd = perf_data_file__fd(self->file);
int fd = perf_data_file__fd(session->file);
union perf_event *event;
uint32_t size, cur_size = 0;
void *buf = NULL;
@ -1181,7 +1180,7 @@ more:
goto out_err;
}
if (self->header.needs_swap)
if (session->header.needs_swap)
perf_event_header__bswap(&event->header);
size = event->header.size;
@ -1216,7 +1215,7 @@ more:
}
}
if ((skip = perf_session__process_event(self, event, tool, head)) < 0) {
if ((skip = perf_session__process_event(session, event, tool, head)) < 0) {
pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
head, event->header.size, event->header.type);
err = -EINVAL;
@ -1232,12 +1231,12 @@ more:
goto more;
done:
/* do the final flush for ordered samples */
self->ordered_samples.next_flush = ULLONG_MAX;
err = flush_sample_queue(self, tool);
session->ordered_samples.next_flush = ULLONG_MAX;
err = flush_sample_queue(session, tool);
out_err:
free(buf);
perf_session__warn_about_errors(self, tool);
perf_session_free_sample_buffers(self);
perf_session__warn_about_errors(session, tool);
perf_session_free_sample_buffers(session);
return err;
}
@ -1377,22 +1376,22 @@ out_err:
return err;
}
int perf_session__process_events(struct perf_session *self,
int perf_session__process_events(struct perf_session *session,
struct perf_tool *tool)
{
u64 size = perf_data_file__size(self->file);
u64 size = perf_data_file__size(session->file);
int err;
if (perf_session__register_idle_thread(self) == NULL)
if (perf_session__register_idle_thread(session) == NULL)
return -ENOMEM;
if (!perf_data_file__is_pipe(self->file))
err = __perf_session__process_events(self,
self->header.data_offset,
self->header.data_size,
if (!perf_data_file__is_pipe(session->file))
err = __perf_session__process_events(session,
session->header.data_offset,
session->header.data_size,
size, tool);
else
err = __perf_session__process_pipe_events(self, tool);
err = __perf_session__process_pipe_events(session, tool);
return err;
}
@ -1441,15 +1440,15 @@ int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
return 0;
}
size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp)
size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
{
return machines__fprintf_dsos(&self->machines, fp);
return machines__fprintf_dsos(&session->machines, fp);
}
size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
bool (skip)(struct dso *dso, int parm), int parm)
{
return machines__fprintf_dsos_buildid(&self->machines, fp, skip, parm);
return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
}
size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)

27
tools/perf/util/session.h
View File

@ -51,12 +51,12 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
bool repipe, struct perf_tool *tool);
void perf_session__delete(struct perf_session *session);
void perf_event_header__bswap(struct perf_event_header *self);
void perf_event_header__bswap(struct perf_event_header *hdr);
int __perf_session__process_events(struct perf_session *self,
int __perf_session__process_events(struct perf_session *session,
u64 data_offset, u64 data_size, u64 size,
struct perf_tool *tool);
int perf_session__process_events(struct perf_session *self,
int perf_session__process_events(struct perf_session *session,
struct perf_tool *tool);
int perf_session_queue_event(struct perf_session *s, union perf_event *event,
@ -64,37 +64,38 @@ int perf_session_queue_event(struct perf_session *s, union perf_event *event,
void perf_tool__fill_defaults(struct perf_tool *tool);
int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
int perf_session__resolve_callchain(struct perf_session *session,
struct perf_evsel *evsel,
struct thread *thread,
struct ip_callchain *chain,
struct symbol **parent);
bool perf_session__has_traces(struct perf_session *self, const char *msg);
bool perf_session__has_traces(struct perf_session *session, const char *msg);
void mem_bswap_64(void *src, int byte_size);
void mem_bswap_32(void *src, int byte_size);
void perf_event__attr_swap(struct perf_event_attr *attr);
int perf_session__create_kernel_maps(struct perf_session *self);
int perf_session__create_kernel_maps(struct perf_session *session);
void perf_session__set_id_hdr_size(struct perf_session *session);
static inline
struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
{
return machines__find(&self->machines, pid);
return machines__find(&session->machines, pid);
}
static inline
struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
{
return machines__findnew(&self->machines, pid);
return machines__findnew(&session->machines, pid);
}
struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
bool (fn)(struct dso *dso, int parm), int parm);

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

@ -180,7 +180,7 @@ struct sort_entry {
int64_t (*se_cmp)(struct hist_entry *, struct hist_entry *);
int64_t (*se_collapse)(struct hist_entry *, struct hist_entry *);
int (*se_snprintf)(struct hist_entry *self, char *bf, size_t size,
int (*se_snprintf)(struct hist_entry *he, char *bf, size_t size,
unsigned int width);
u8 se_width_idx;
bool elide;

32
tools/perf/util/strfilter.c
View File

@ -62,15 +62,15 @@ static struct strfilter_node *strfilter_node__alloc(const char *op,
struct strfilter_node *l,
struct strfilter_node *r)
{
struct strfilter_node *ret = zalloc(sizeof(struct strfilter_node));
struct strfilter_node *node = zalloc(sizeof(*node));
if (ret) {
ret->p = op;
ret->l = l;
ret->r = r;
if (node) {
node->p = op;
node->l = l;
node->r = r;
}
return ret;
return node;
}
static struct strfilter_node *strfilter_node__new(const char *s,
@ -154,20 +154,20 @@ error:
*/
struct strfilter *strfilter__new(const char *rules, const char **err)
{
struct strfilter *ret = zalloc(sizeof(struct strfilter));
struct strfilter *filter = zalloc(sizeof(*filter));
const char *ep = NULL;
if (ret)
ret->root = strfilter_node__new(rules, &ep);
if (filter)
filter->root = strfilter_node__new(rules, &ep);
if (!ret || !ret->root || *ep != '\0') {
if (!filter || !filter->root || *ep != '\0') {
if (err)
*err = ep;
strfilter__delete(ret);
ret = NULL;
strfilter__delete(filter);
filter = NULL;
}
return ret;
return filter;
}
static bool strfilter_node__compare(struct strfilter_node *node,
@ -191,9 +191,9 @@ static bool strfilter_node__compare(struct strfilter_node *node,
}
/* Return true if STR matches the filter rules */
bool strfilter__compare(struct strfilter *node, const char *str)
bool strfilter__compare(struct strfilter *filter, const char *str)
{
if (!node)
if (!filter)
return false;
return strfilter_node__compare(node->root, str);
return strfilter_node__compare(filter->root, str);
}

12
tools/perf/util/strfilter.h
View File

@ -30,19 +30,19 @@ struct strfilter *strfilter__new(const char *rules, const char **err);
/**
* strfilter__compare - compare given string and a string filter
* @self: String filter
* @filter: String filter
* @str: target string
*
* Compare @str and @self. Return true if the str match the rule
* Compare @str and @filter. Return true if the str match the rule
*/
bool strfilter__compare(struct strfilter *self, const char *str);
bool strfilter__compare(struct strfilter *filter, const char *str);
/**
* strfilter__delete - delete a string filter
* @self: String filter to delete
* @filter: String filter to delete
*
* Delete @self.
* Delete @filter.
*/
void strfilter__delete(struct strfilter *self);
void strfilter__delete(struct strfilter *filter);
#endif

60
tools/perf/util/sysfs.c
View File

@ -1,60 +0,0 @@
#include "util.h"
#include "sysfs.h"
static const char * const sysfs_known_mountpoints[] = {
"/sys",
0,
};
static int sysfs_found;
char sysfs_mountpoint[PATH_MAX + 1];
static int sysfs_valid_mountpoint(const char *sysfs)
{
struct statfs st_fs;
if (statfs(sysfs, &st_fs) < 0)
return -ENOENT;
else if (st_fs.f_type != (long) SYSFS_MAGIC)
return -ENOENT;
return 0;
}
const char *sysfs_find_mountpoint(void)
{
const char * const *ptr;
char type[100];
FILE *fp;
if (sysfs_found)
return (const char *) sysfs_mountpoint;
ptr = sysfs_known_mountpoints;
while (*ptr) {
if (sysfs_valid_mountpoint(*ptr) == 0) {
sysfs_found = 1;
strcpy(sysfs_mountpoint, *ptr);
return sysfs_mountpoint;
}
ptr++;
}
/* give up and parse /proc/mounts */
fp = fopen("/proc/mounts", "r");
if (fp == NULL)
return NULL;
while (!sysfs_found &&
fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
sysfs_mountpoint, type) == 2) {
if (strcmp(type, "sysfs") == 0)
sysfs_found = 1;
}
fclose(fp);
return sysfs_found ? sysfs_mountpoint : NULL;
}

6
tools/perf/util/sysfs.h
View File

@ -1,6 +0,0 @@
#ifndef __SYSFS_H__
#define __SYSFS_H__
const char *sysfs_find_mountpoint(void);
#endif /* __DEBUGFS_H__ */

10
tools/perf/util/thread.h
View File

@ -29,24 +29,24 @@ struct machine;
struct comm;
struct thread *thread__new(pid_t pid, pid_t tid);
void thread__delete(struct thread *self);
void thread__delete(struct thread *thread);
static inline void thread__exited(struct thread *thread)
{
thread->dead = true;
}
int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp);
int thread__comm_len(struct thread *self);
int thread__comm_len(struct thread *thread);
struct comm *thread__comm(const struct thread *thread);
const char *thread__comm_str(const struct thread *thread);
void thread__insert_map(struct thread *self, struct map *map);
void thread__insert_map(struct thread *thread, struct map *map);
int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
size_t thread__fprintf(struct thread *thread, FILE *fp);
static inline struct map *thread__find_map(struct thread *self,
static inline struct map *thread__find_map(struct thread *thread,
enum map_type type, u64 addr)
{
return self ? map_groups__find(&self->mg, type, addr) : NULL;
return thread ? map_groups__find(&thread->mg, type, addr) : NULL;
}
void thread__find_addr_map(struct thread *thread, struct machine *machine,