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Commit a91e5431 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
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perf session: Use evlist/evsel for managing perf.data attributes 

So that we can reuse things like the id to attr lookup routine
(perf_evlist__id2evsel) that uses a hash table instead of the linear
lookup done in the older perf_header_attr routines, etc.

Also to make evsels/evlist more pervasive an API, simplyfing using the
emerging perf lib.

cc: Arun Sharma <arun@sharma-home.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 65472503
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Showing with 179 additions and 328 deletions
tools/perf/builtin-record.c
View file @ a91e5431
......@@ -31,7 +31,6 @@
#include <sys/mman.h>
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
#define SID(e, x, y) xyarray__entry(e->id, x, y)
enum write_mode_t {
WRITE_FORCE,
......@@ -40,7 +39,6 @@ enum write_mode_t {
static u64 user_interval = ULLONG_MAX;
static u64 default_interval = 0;
static u64 sample_type;
static unsigned int page_size;
static unsigned int mmap_pages = 128;
......@@ -160,54 +158,6 @@ static void sig_atexit(void)
kill(getpid(), signr);
}
static struct perf_header_attr *get_header_attr(struct perf_event_attr *a, int nr)
{
struct perf_header_attr *h_attr;
if (nr < session->header.attrs) {
h_attr = session->header.attr[nr];
} else {
h_attr = perf_header_attr__new(a);
if (h_attr != NULL)
if (perf_header__add_attr(&session->header, h_attr) < 0) {
perf_header_attr__delete(h_attr);
h_attr = NULL;
}
}
return h_attr;
}
static void create_counter(struct perf_evsel *evsel, int cpu)
{
struct perf_event_attr *attr = &evsel->attr;
struct perf_header_attr *h_attr;
struct perf_sample_id *sid;
int thread_index;
for (thread_index = 0; thread_index < evsel_list->threads->nr; thread_index++) {
h_attr = get_header_attr(attr, evsel->idx);
if (h_attr == NULL)
die("nomem\n");
if (!file_new) {
if (memcmp(&h_attr->attr, attr, sizeof(*attr))) {
fprintf(stderr, "incompatible append\n");
exit(-1);
}
}
sid = SID(evsel, cpu, thread_index);
if (perf_header_attr__add_id(h_attr, sid->id) < 0) {
pr_warning("Not enough memory to add id\n");
exit(-1);
}
}
if (!sample_type)
sample_type = attr->sample_type;
}
static void config_attr(struct perf_evsel *evsel, struct perf_evlist *evlist)
{
struct perf_event_attr *attr = &evsel->attr;
......@@ -278,10 +228,28 @@ static void config_attr(struct perf_evsel *evsel, struct perf_evlist *evlist)
}
}
static bool perf_evlist__equal(struct perf_evlist *evlist,
struct perf_evlist *other)
{
struct perf_evsel *pos, *pair;
if (evlist->nr_entries != other->nr_entries)
return false;
pair = list_entry(other->entries.next, struct perf_evsel, node);
list_for_each_entry(pos, &evlist->entries, node) {
if (memcmp(&pos->attr, &pair->attr, sizeof(pos->attr) != 0))
return false;
pair = list_entry(pair->node.next, struct perf_evsel, node);
}
return true;
}
static void open_counters(struct perf_evlist *evlist)
{
struct perf_evsel *pos;
int cpu;
list_for_each_entry(pos, &evlist->entries, node) {
struct perf_event_attr *attr = &pos->attr;
......@@ -364,10 +332,16 @@ static void open_counters(struct perf_evlist *evlist)
if (perf_evlist__mmap(evlist, mmap_pages, false) < 0)
die("failed to mmap with %d (%s)\n", errno, strerror(errno));
for (cpu = 0; cpu < evsel_list->cpus->nr; ++cpu) {
list_for_each_entry(pos, &evlist->entries, node)
create_counter(pos, cpu);
}
if (file_new)
session->evlist = evlist;
else {
if (!perf_evlist__equal(session->evlist, evlist)) {
fprintf(stderr, "incompatible append\n");
exit(-1);
}
}
perf_session__update_sample_type(session);
}
static int process_buildids(void)
......@@ -390,7 +364,7 @@ static void atexit_header(void)
if (!no_buildid)
process_buildids();
perf_header__write(&session->header, evsel_list, output, true);
perf_session__write_header(session, evsel_list, output, true);
perf_session__delete(session);
perf_evlist__delete(evsel_list);
symbol__exit();
......@@ -524,7 +498,7 @@ static int __cmd_record(int argc, const char **argv)
perf_header__set_feat(&session->header, HEADER_BUILD_ID);
if (!file_new) {
err = perf_header__read(session, output);
err = perf_session__read_header(session, output);
if (err < 0)
goto out_delete_session;
}
......@@ -588,8 +562,6 @@ static int __cmd_record(int argc, const char **argv)
open_counters(evsel_list);
perf_session__set_sample_type(session, sample_type);
/*
* perf_session__delete(session) will be called at atexit_header()
*/
......@@ -600,20 +572,17 @@ static int __cmd_record(int argc, const char **argv)
if (err < 0)
return err;
} else if (file_new) {
err = perf_header__write(&session->header, evsel_list,
output, false);
err = perf_session__write_header(session, evsel_list,
output, false);
if (err < 0)
return err;
}
post_processing_offset = lseek(output, 0, SEEK_CUR);
perf_session__set_sample_id_all(session, sample_id_all_avail);
if (pipe_output) {
err = perf_event__synthesize_attrs(&session->header,
process_synthesized_event,
session);
err = perf_session__synthesize_attrs(session,
process_synthesized_event);
if (err < 0) {
pr_err("Couldn't synthesize attrs.\n");
return err;
......
tools/perf/builtin-report.c
View file @ a91e5431
......@@ -70,8 +70,8 @@ static int perf_session__add_hist_entry(struct perf_session *session,
* FIXME: Propagate this back, but at least we're in a builtin,
* where exit() is allowed. ;-)
*/
ui__warning("Invalid %s file, contains samples with id not in "
"its header!\n", input_name);
ui__warning("Invalid %s file, contains samples with id %" PRIu64 " not in "
"its header!\n", input_name, sample->id);
exit_browser(0);
exit(1);
}
......
tools/perf/builtin-top.c
View file @ a91e5431
......@@ -883,7 +883,6 @@ static void start_counters(struct perf_evlist *evlist)
static int __cmd_top(void)
{
pthread_t thread;
struct perf_evsel *first;
int ret __used;
/*
* FIXME: perf_session__new should allow passing a O_MMAP, so that all this
......@@ -900,8 +899,8 @@ static int __cmd_top(void)
perf_event__synthesize_threads(perf_event__process, session);
start_counters(top.evlist);
first = list_entry(top.evlist->entries.next, struct perf_evsel, node);
perf_session__set_sample_type(session, first->attr.sample_type);
session->evlist = top.evlist;
perf_session__update_sample_type(session);
/* Wait for a minimal set of events before starting the snapshot */
poll(top.evlist->pollfd, top.evlist->nr_fds, 100);
......
tools/perf/util/evlist.c
View file @ a91e5431
......@@ -19,7 +19,7 @@
#include <linux/hash.h>
#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
#define SID(e, x, y) xyarray__entry(e->id, x, y)
#define SID(e, x, y) xyarray__entry(e->sample_id, x, y)
void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
struct thread_map *threads)
......@@ -106,8 +106,9 @@ void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd)
evlist->nr_fds++;
}
void perf_evlist__id_hash(struct perf_evlist *evlist, struct perf_evsel *evsel,
int cpu, int thread, u64 id)
static void perf_evlist__id_hash(struct perf_evlist *evlist,
struct perf_evsel *evsel,
int cpu, int thread, u64 id)
{
int hash;
struct perf_sample_id *sid = SID(evsel, cpu, thread);
......@@ -118,9 +119,16 @@ void perf_evlist__id_hash(struct perf_evlist *evlist, struct perf_evsel *evsel,
hlist_add_head(&sid->node, &evlist->heads[hash]);
}
static int perf_evlist__id_hash_fd(struct perf_evlist *evlist,
struct perf_evsel *evsel,
int cpu, int thread, int fd)
void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
int cpu, int thread, u64 id)
{
perf_evlist__id_hash(evlist, evsel, cpu, thread, id);
evsel->id[evsel->ids++] = id;
}
static int perf_evlist__id_add_fd(struct perf_evlist *evlist,
struct perf_evsel *evsel,
int cpu, int thread, int fd)
{
u64 read_data[4] = { 0, };
int id_idx = 1; /* The first entry is the counter value */
......@@ -134,7 +142,7 @@ static int perf_evlist__id_hash_fd(struct perf_evlist *evlist,
if (evsel->attr.read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
++id_idx;
perf_evlist__id_hash(evlist, evsel, cpu, thread, read_data[id_idx]);
perf_evlist__id_add(evlist, evsel, cpu, thread, read_data[id_idx]);
return 0;
}
......@@ -292,7 +300,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite)
list_for_each_entry(evsel, &evlist->entries, node) {
if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
evsel->id == NULL &&
evsel->sample_id == NULL &&
perf_evsel__alloc_id(evsel, cpus->nr, threads->nr) < 0)
return -ENOMEM;
......@@ -308,7 +316,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite)
goto out_unmap;
if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
perf_evlist__id_hash_fd(evlist, evsel, cpu, thread, fd) < 0)
perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0)
goto out_unmap;
}
}
......
tools/perf/util/evlist.h
View file @ a91e5431
......@@ -38,8 +38,8 @@ void perf_evlist__delete(struct perf_evlist *evlist);
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
int perf_evlist__add_default(struct perf_evlist *evlist);
void perf_evlist__id_hash(struct perf_evlist *evlist, struct perf_evsel *evsel,
int cpu, int thread, u64 id);
void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
int cpu, int thread, u64 id);
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
void perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
......
tools/perf/util/evsel.c
View file @ a91e5431
......@@ -41,8 +41,18 @@ int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads)
{
evsel->id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
return evsel->id != NULL ? 0 : -ENOMEM;
evsel->sample_id = xyarray__new(ncpus, nthreads, sizeof(struct perf_sample_id));
if (evsel->sample_id == NULL)
return -ENOMEM;
evsel->id = zalloc(ncpus * nthreads * sizeof(u64));
if (evsel->id == NULL) {
xyarray__delete(evsel->sample_id);
evsel->sample_id = NULL;
return -ENOMEM;
}
return 0;
}
int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus)
......@@ -60,7 +70,9 @@ void perf_evsel__free_fd(struct perf_evsel *evsel)
void perf_evsel__free_id(struct perf_evsel *evsel)
{
xyarray__delete(evsel->id);
xyarray__delete(evsel->sample_id);
evsel->sample_id = NULL;
free(evsel->id);
evsel->id = NULL;
}
......@@ -79,7 +91,8 @@ void perf_evsel__exit(struct perf_evsel *evsel)
{
assert(list_empty(&evsel->node));
xyarray__delete(evsel->fd);
xyarray__delete(evsel->id);
xyarray__delete(evsel->sample_id);
free(evsel->id);
}
void perf_evsel__delete(struct perf_evsel *evsel)
......
tools/perf/util/evsel.h
View file @ a91e5431
......@@ -49,12 +49,17 @@ struct perf_evsel {
struct perf_event_attr attr;
char *filter;
struct xyarray *fd;
struct xyarray *id;
struct xyarray *sample_id;
u64 *id;
struct perf_counts *counts;
int idx;
int ids;
struct hists hists;
char *name;
void *priv;
union {
void *priv;
off_t id_offset;
};
struct cgroup_sel *cgrp;
};
......
tools/perf/util/header.c
View file @ a91e5431
......@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include "evlist.h"
#include "evsel.h"
#include "util.h"
#include "header.h"
#include "../perf.h"
......@@ -19,89 +20,6 @@
static bool no_buildid_cache = false;
/*
* Create new perf.data header attribute:
*/
struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr)
{
struct perf_header_attr *self = malloc(sizeof(*self));
if (self != NULL) {
self->attr = *attr;
self->ids = 0;
self->size = 1;
self->id = malloc(sizeof(u64));
if (self->id == NULL) {
free(self);
self = NULL;
}
}
return self;
}
void perf_header_attr__delete(struct perf_header_attr *self)
{
free(self->id);
free(self);
}
int perf_header_attr__add_id(struct perf_header_attr *self, u64 id)
{
int pos = self->ids;
self->ids++;
if (self->ids > self->size) {
int nsize = self->size * 2;
u64 *nid = realloc(self->id, nsize * sizeof(u64));
if (nid == NULL)
return -1;
self->size = nsize;
self->id = nid;
}
self->id[pos] = id;
return 0;
}
int perf_header__init(struct perf_header *self)
{
self->size = 1;
self->attr = malloc(sizeof(void *));
return self->attr == NULL ? -ENOMEM : 0;
}
void perf_header__exit(struct perf_header *self)
{
int i;
for (i = 0; i < self->attrs; ++i)
perf_header_attr__delete(self->attr[i]);
free(self->attr);
}
int perf_header__add_attr(struct perf_header *self,
struct perf_header_attr *attr)
{
if (self->frozen)
return -1;
if (self->attrs == self->size) {
int nsize = self->size * 2;
struct perf_header_attr **nattr;
nattr = realloc(self->attr, nsize * sizeof(void *));
if (nattr == NULL)
return -1;
self->size = nsize;
self->attr = nattr;
}
self->attr[self->attrs++] = attr;
return 0;
}
static int event_count;
static struct perf_trace_event_type *events;
......@@ -515,33 +433,41 @@ int perf_header__write_pipe(int fd)
return 0;
}
int perf_header__write(struct perf_header *self, struct perf_evlist *evlist,
int fd, bool at_exit)
int perf_session__write_header(struct perf_session *session,
struct perf_evlist *evlist,
int fd, bool at_exit)
{
struct perf_file_header f_header;
struct perf_file_attr f_attr;
struct perf_header_attr *attr;
int i, err;
struct perf_header *self = &session->header;
struct perf_evsel *attr, *pair = NULL;
int err;
lseek(fd, sizeof(f_header), SEEK_SET);
for (i = 0; i < self->attrs; i++) {
attr = self->attr[i];
if (session->evlist != evlist)
pair = list_entry(session->evlist->entries.next, struct perf_evsel, node);
list_for_each_entry(attr, &evlist->entries, node) {
attr->id_offset = lseek(fd, 0, SEEK_CUR);
err = do_write(fd, attr->id, attr->ids * sizeof(u64));
if (err < 0) {
out_err_write:
pr_debug("failed to write perf header\n");
return err;
}
if (session->evlist != evlist) {
err = do_write(fd, pair->id, pair->ids * sizeof(u64));
if (err < 0)
goto out_err_write;
attr->ids += pair->ids;
pair = list_entry(pair->node.next, struct perf_evsel, node);
}
}
self->attr_offset = lseek(fd, 0, SEEK_CUR);
for (i = 0; i < self->attrs; i++) {
attr = self->attr[i];
list_for_each_entry(attr, &evlist->entries, node) {
f_attr = (struct perf_file_attr){
.attr = attr->attr,
.ids = {
......@@ -580,7 +506,7 @@ int perf_header__write(struct perf_header *self, struct perf_evlist *evlist,
.attr_size = sizeof(f_attr),
.attrs = {
.offset = self->attr_offset,
.size = self->attrs * sizeof(f_attr),
.size = evlist->nr_entries * sizeof(f_attr),
},
.data = {
.offset = self->data_offset,
......@@ -861,7 +787,7 @@ static int perf_header__read_pipe(struct perf_session *session, int fd)
return 0;
}
int perf_header__read(struct perf_session *session, int fd)
int perf_session__read_header(struct perf_session *session, int fd)
{
struct perf_header *self = &session->header;
struct perf_file_header f_header;
......@@ -869,6 +795,10 @@ int perf_header__read(struct perf_session *session, int fd)
u64 f_id;
int nr_attrs, nr_ids, i, j;
session->evlist = perf_evlist__new(NULL, NULL);
if (session->evlist == NULL)
return -ENOMEM;
if (session->fd_pipe)
return perf_header__read_pipe(session, fd);
......@@ -881,33 +811,39 @@ int perf_header__read(struct perf_session *session, int fd)
lseek(fd, f_header.attrs.offset, SEEK_SET);
for (i = 0; i < nr_attrs; i++) {
struct perf_header_attr *attr;
struct perf_evsel *evsel;
off_t tmp;
if (perf_header__getbuffer64(self, fd, &f_attr, sizeof(f_attr)))
goto out_errno;
tmp = lseek(fd, 0, SEEK_CUR);
evsel = perf_evsel__new(&f_attr.attr, i);
attr = perf_header_attr__new(&f_attr.attr);
if (attr == NULL)
return -ENOMEM;
if (evsel == NULL)
goto out_delete_evlist;
/*
* Do it before so that if perf_evsel__alloc_id fails, this
* entry gets purged too at perf_evlist__delete().
*/
perf_evlist__add(session->evlist, evsel);
nr_ids = f_attr.ids.size / sizeof(u64);
/*
* We don't have the cpu and thread maps on the header, so
* for allocating the perf_sample_id table we fake 1 cpu and
* hattr->ids threads.
*/
if (perf_evsel__alloc_id(evsel, 1, nr_ids))
goto out_delete_evlist;
lseek(fd, f_attr.ids.offset, SEEK_SET);
for (j = 0; j < nr_ids; j++) {
if (perf_header__getbuffer64(self, fd, &f_id, sizeof(f_id)))
goto out_errno;
if (perf_header_attr__add_id(attr, f_id) < 0) {
perf_header_attr__delete(attr);
return -ENOMEM;
}
}
if (perf_header__add_attr(self, attr) < 0) {
perf_header_attr__delete(attr);
return -ENOMEM;
perf_evlist__id_add(session->evlist, evsel, 0, j, f_id);
}
lseek(fd, tmp, SEEK_SET);
......@@ -932,37 +868,38 @@ int perf_header__read(struct perf_session *session, int fd)
return 0;
out_errno:
return -errno;
out_delete_evlist:
perf_evlist__delete(session->evlist);
session->evlist = NULL;
return -ENOMEM;
}
u64 perf_header__sample_type(struct perf_header *header)
u64 perf_evlist__sample_type(struct perf_evlist *evlist)
{
struct perf_evsel *pos;
u64 type = 0;
int i;
for (i = 0; i < header->attrs; i++) {
struct perf_header_attr *attr = header->attr[i];
list_for_each_entry(pos, &evlist->entries, node) {
if (!type)
type = attr->attr.sample_type;
else if (type != attr->attr.sample_type)
type = pos->attr.sample_type;
else if (type != pos->attr.sample_type)
die("non matching sample_type");
}
return type;
}
bool perf_header__sample_id_all(const struct perf_header *header)
bool perf_evlist__sample_id_all(const struct perf_evlist *evlist)
{
bool value = false, first = true;
int i;
for (i = 0; i < header->attrs; i++) {
struct perf_header_attr *attr = header->attr[i];
struct perf_evsel *pos;
list_for_each_entry(pos, &evlist->entries, node) {
if (first) {
value = attr->attr.sample_id_all;
value = pos->attr.sample_id_all;
first = false;
} else if (value != attr->attr.sample_id_all)
} else if (value != pos->attr.sample_id_all)
die("non matching sample_id_all");
}
......@@ -1000,16 +937,13 @@ int perf_event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
return err;
}
int perf_event__synthesize_attrs(struct perf_header *self,
perf_event__handler_t process,
struct perf_session *session)
int perf_session__synthesize_attrs(struct perf_session *session,
perf_event__handler_t process)
{
struct perf_header_attr *attr;
int i, err = 0;
for (i = 0; i < self->attrs; i++) {
attr = self->attr[i];
struct perf_evsel *attr;
int err = 0;
list_for_each_entry(attr, &session->evlist->entries, node) {
err = perf_event__synthesize_attr(&attr->attr, attr->ids,
attr->id, process, session);
if (err) {
......@@ -1024,27 +958,36 @@ int perf_event__synthesize_attrs(struct perf_header *self,
int perf_event__process_attr(union perf_event *event,
struct perf_session *session)
{
struct perf_header_attr *attr;
unsigned int i, ids, n_ids;
struct perf_evsel *evsel;
attr = perf_header_attr__new(&event->attr.attr);
if (attr == NULL)
if (session->evlist == NULL) {
session->evlist = perf_evlist__new(NULL, NULL);
if (session->evlist == NULL)
return -ENOMEM;
}
evsel = perf_evsel__new(&event->attr.attr,
session->evlist->nr_entries);
if (evsel == NULL)
return -ENOMEM;
perf_evlist__add(session->evlist, evsel);
ids = event->header.size;
ids -= (void *)&event->attr.id - (void *)event;
n_ids = ids / sizeof(u64);
/*
* We don't have the cpu and thread maps on the header, so
* for allocating the perf_sample_id table we fake 1 cpu and
* hattr->ids threads.
*/
if (perf_evsel__alloc_id(evsel, 1, n_ids))
return -ENOMEM;
for (i = 0; i < n_ids; i++) {
if (perf_header_attr__add_id(attr, event->attr.id[i]) < 0) {
perf_header_attr__delete(attr);
return -ENOMEM;
}
}
if (perf_header__add_attr(&session->header, attr) < 0) {
perf_header_attr__delete(attr);
return -ENOMEM;
perf_evlist__id_add(session->evlist, evsel, 0, i,
event->attr.id[i]);
}
perf_session__update_sample_type(session);
......
tools/perf/util/header.h
View file @ a91e5431
......@@ -9,13 +9,6 @@
#include <linux/bitmap.h>
struct perf_header_attr {
struct perf_event_attr attr;
int ids, size;
u64 *id;
off_t id_offset;
};
enum {
HEADER_TRACE_INFO = 1,
HEADER_BUILD_ID,
......@@ -51,9 +44,7 @@ int perf_file_header__read(struct perf_file_header *self,
struct perf_header {
int frozen;
int attrs, size;
bool needs_swap;
struct perf_header_attr **attr;
s64 attr_offset;
u64 data_offset;
u64 data_size;
......@@ -62,29 +53,19 @@ struct perf_header {
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
};
int perf_header__init(struct perf_header *self);
void perf_header__exit(struct perf_header *self);
struct perf_evlist;
int perf_header__read(struct perf_session *session, int fd);
int perf_header__write(struct perf_header *self, struct perf_evlist *evlist,
int fd, bool at_exit);
int perf_session__read_header(struct perf_session *session, int fd);
int perf_session__write_header(struct perf_session *session,
struct perf_evlist *evlist,
int fd, bool at_exit);
int perf_header__write_pipe(int fd);
int perf_header__add_attr(struct perf_header *self,
struct perf_header_attr *attr);
int perf_header__push_event(u64 id, const char *name);
char *perf_header__find_event(u64 id);
struct perf_header_attr *perf_header_attr__new(struct perf_event_attr *attr);
void perf_header_attr__delete(struct perf_header_attr *self);
int perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
u64 perf_header__sample_type(struct perf_header *header);
bool perf_header__sample_id_all(const struct perf_header *header);
u64 perf_evlist__sample_type(struct perf_evlist *evlist);
bool perf_evlist__sample_id_all(const struct perf_evlist *evlist);
void perf_header__set_feat(struct perf_header *self, int feat);
void perf_header__clear_feat(struct perf_header *self, int feat);
bool perf_header__has_feat(const struct perf_header *self, int feat);
......@@ -101,9 +82,8 @@ int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
int perf_event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
perf_event__handler_t process,
struct perf_session *session);
int perf_event__synthesize_attrs(struct perf_header *self,
perf_event__handler_t process,
struct perf_session *session);
int perf_session__synthesize_attrs(struct perf_session *session,
perf_event__handler_t process);
int perf_event__process_attr(union perf_event *event, struct perf_session *session);
int perf_event__synthesize_event_type(u64 event_id, char *name,
......
tools/perf/util/session.c
View file @ a91e5431
......@@ -13,46 +13,6 @@
#include "sort.h"
#include "util.h"
static int perf_session__read_evlist(struct perf_session *session)
{
int i, j;
session->evlist = perf_evlist__new(NULL, NULL);
if (session->evlist == NULL)
return -ENOMEM;
for (i = 0; i < session->header.attrs; ++i) {
struct perf_header_attr *hattr = session->header.attr[i];
struct perf_evsel *evsel = perf_evsel__new(&hattr->attr, i);
if (evsel == NULL)
goto out_delete_evlist;
/*
* Do it before so that if perf_evsel__alloc_id fails, this
* entry gets purged too at perf_evlist__delete().
*/
perf_evlist__add(session->evlist, evsel);
/*
* We don't have the cpu and thread maps on the header, so
* for allocating the perf_sample_id table we fake 1 cpu and
* hattr->ids threads.
*/
if (perf_evsel__alloc_id(evsel, 1, hattr->ids))
goto out_delete_evlist;
for (j = 0; j < hattr->ids; ++j)
perf_evlist__id_hash(session->evlist, evsel, 0, j,
hattr->id[j]);
}
return 0;
out_delete_evlist:
perf_evlist__delete(session->evlist);
session->evlist = NULL;
return -ENOMEM;
}
static int perf_session__open(struct perf_session *self, bool force)
{
struct stat input_stat;
......@@ -61,7 +21,7 @@ static int perf_session__open(struct perf_session *self, bool force)
self->fd_pipe = true;
self->fd = STDIN_FILENO;
if (perf_header__read(self, self->fd) < 0)
if (perf_session__read_header(self, self->fd) < 0)
pr_err("incompatible file format");
return 0;
......@@ -93,16 +53,11 @@ static int perf_session__open(struct perf_session *self, bool force)
goto out_close;
}
if (perf_header__read(self, self->fd) < 0) {
if (perf_session__read_header(self, self->fd) < 0) {
pr_err("incompatible file format");
goto out_close;
}
if (perf_session__read_evlist(self) < 0) {
pr_err("Not enough memory to read the event selector list\n");
goto out_close;
}
self->size = input_stat.st_size;
return 0;
......@@ -139,21 +94,10 @@ static void perf_session__id_header_size(struct perf_session *session)
session->id_hdr_size = size;
}
void perf_session__set_sample_id_all(struct perf_session *session, bool value)
{
session->sample_id_all = value;
perf_session__id_header_size(session);
}
void perf_session__set_sample_type(struct perf_session *session, u64 type)
{
session->sample_type = type;
}
void perf_session__update_sample_type(struct perf_session *self)
{
self->sample_type = perf_header__sample_type(&self->header);
self->sample_id_all = perf_header__sample_id_all(&self->header);
self->sample_type = perf_evlist__sample_type(self->evlist);
self->sample_id_all = perf_evlist__sample_id_all(self->evlist);
perf_session__id_header_size(self);
}
......@@ -182,9 +126,6 @@ struct perf_session *perf_session__new(const char *filename, int mode,
if (self == NULL)
goto out;
if (perf_header__init(&self->header) < 0)
goto out_free;
memcpy(self->filename, filename, len);
self->threads = RB_ROOT;
INIT_LIST_HEAD(&self->dead_threads);
......@@ -208,6 +149,7 @@ struct perf_session *perf_session__new(const char *filename, int mode,
if (mode == O_RDONLY) {
if (perf_session__open(self, force) < 0)
goto out_delete;
perf_session__update_sample_type(self);
} else if (mode == O_WRONLY) {
/*
* In O_RDONLY mode this will be performed when reading the
......@@ -217,8 +159,6 @@ struct perf_session *perf_session__new(const char *filename, int mode,
goto out_delete;
}
perf_session__update_sample_type(self);
if (ops && ops->ordering_requires_timestamps &&
ops->ordered_samples && !self->sample_id_all) {
dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
......@@ -227,9 +167,6 @@ struct perf_session *perf_session__new(const char *filename, int mode,
out:
return self;
out_free:
free(self);
return NULL;
out_delete:
perf_session__delete(self);
return NULL;
......@@ -260,7 +197,6 @@ static void perf_session__delete_threads(struct perf_session *self)
void perf_session__delete(struct perf_session *self)
{
perf_header__exit(&self->header);
perf_session__destroy_kernel_maps(self);
perf_session__delete_dead_threads(self);
perf_session__delete_threads(self);
......
tools/perf/util/session.h
View file @ a91e5431
......@@ -112,8 +112,6 @@ void mem_bswap_64(void *src, int byte_size);
int perf_session__create_kernel_maps(struct perf_session *self);
void perf_session__update_sample_type(struct perf_session *self);
void perf_session__set_sample_id_all(struct perf_session *session, bool value);
void perf_session__set_sample_type(struct perf_session *session, u64 type);
void perf_session__remove_thread(struct perf_session *self, struct thread *th);
static inline
......
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