struct perf_tool tool;
struct record_opts opts;
u64 bytes_written;
- struct perf_data_file file;
+ struct perf_data data;
struct auxtrace_record *itr;
struct perf_evlist *evlist;
struct perf_session *session;
static int record__write(struct record *rec, void *bf, size_t size)
{
- if (perf_data_file__write(rec->session->file, bf, size) < 0) {
+ if (perf_data__write(rec->session->data, bf, size) < 0) {
pr_err("failed to write perf data, error: %m\n");
return -1;
}
return record__write(rec, event, event->header.size);
}
-static int
-backward_rb_find_range(void *buf, int mask, u64 head, u64 *start, u64 *end)
+static int record__pushfn(void *to, void *bf, size_t size)
{
- struct perf_event_header *pheader;
- u64 evt_head = head;
- int size = mask + 1;
-
- pr_debug2("backward_rb_find_range: buf=%p, head=%"PRIx64"\n", buf, head);
- pheader = (struct perf_event_header *)(buf + (head & mask));
- *start = head;
- while (true) {
- if (evt_head - head >= (unsigned int)size) {
- pr_debug("Finished reading backward ring buffer: rewind\n");
- if (evt_head - head > (unsigned int)size)
- evt_head -= pheader->size;
- *end = evt_head;
- return 0;
- }
-
- pheader = (struct perf_event_header *)(buf + (evt_head & mask));
-
- if (pheader->size == 0) {
- pr_debug("Finished reading backward ring buffer: get start\n");
- *end = evt_head;
- return 0;
- }
-
- evt_head += pheader->size;
- pr_debug3("move evt_head: %"PRIx64"\n", evt_head);
- }
- WARN_ONCE(1, "Shouldn't get here\n");
- return -1;
-}
-
-static int
-rb_find_range(void *data, int mask, u64 head, u64 old,
- u64 *start, u64 *end, bool backward)
-{
- if (!backward) {
- *start = old;
- *end = head;
- return 0;
- }
-
- return backward_rb_find_range(data, mask, head, start, end);
-}
-
-static int
-record__mmap_read(struct record *rec, struct perf_mmap *md,
- bool overwrite, bool backward)
-{
- u64 head = perf_mmap__read_head(md);
- u64 old = md->prev;
- u64 end = head, start = old;
- unsigned char *data = md->base + page_size;
- unsigned long size;
- void *buf;
- int rc = 0;
-
- if (rb_find_range(data, md->mask, head,
- old, &start, &end, backward))
- return -1;
-
- if (start == end)
- return 0;
+ struct record *rec = to;
rec->samples++;
-
- size = end - start;
- if (size > (unsigned long)(md->mask) + 1) {
- WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n");
-
- md->prev = head;
- perf_mmap__consume(md, overwrite || backward);
- return 0;
- }
-
- if ((start & md->mask) + size != (end & md->mask)) {
- buf = &data[start & md->mask];
- size = md->mask + 1 - (start & md->mask);
- start += size;
-
- if (record__write(rec, buf, size) < 0) {
- rc = -1;
- goto out;
- }
- }
-
- buf = &data[start & md->mask];
- size = end - start;
- start += size;
-
- if (record__write(rec, buf, size) < 0) {
- rc = -1;
- goto out;
- }
-
- md->prev = head;
- perf_mmap__consume(md, overwrite || backward);
-out:
- return rc;
+ return record__write(rec, bf, size);
}
static volatile int done;
size_t len1, void *data2, size_t len2)
{
struct record *rec = container_of(tool, struct record, tool);
- struct perf_data_file *file = &rec->file;
+ struct perf_data *data = &rec->data;
size_t padding;
u8 pad[8] = {0};
- if (!perf_data_file__is_pipe(file)) {
+ if (!perf_data__is_pipe(data)) {
off_t file_offset;
- int fd = perf_data_file__fd(file);
+ int fd = perf_data__fd(data);
int err;
file_offset = lseek(fd, 0, SEEK_CUR);
static int process_buildids(struct record *rec)
{
- struct perf_data_file *file = &rec->file;
+ struct perf_data *data = &rec->data;
struct perf_session *session = rec->session;
- if (file->size == 0)
+ if (data->size == 0)
return 0;
/*
struct auxtrace_mmap *mm = &maps[i].auxtrace_mmap;
if (maps[i].base) {
- if (record__mmap_read(rec, &maps[i],
- evlist->overwrite, backward) != 0) {
+ if (perf_mmap__push(&maps[i], evlist->overwrite, backward, rec, record__pushfn) != 0) {
rc = -1;
goto out;
}
static void
record__finish_output(struct record *rec)
{
- struct perf_data_file *file = &rec->file;
- int fd = perf_data_file__fd(file);
+ struct perf_data *data = &rec->data;
+ int fd = perf_data__fd(data);
- if (file->is_pipe)
+ if (data->is_pipe)
return;
rec->session->header.data_size += rec->bytes_written;
- file->size = lseek(perf_data_file__fd(file), 0, SEEK_CUR);
+ data->size = lseek(perf_data__fd(data), 0, SEEK_CUR);
if (!rec->no_buildid) {
process_buildids(rec);
static int
record__switch_output(struct record *rec, bool at_exit)
{
- struct perf_data_file *file = &rec->file;
+ struct perf_data *data = &rec->data;
int fd, err;
/* Same Size: "2015122520103046"*/
return -EINVAL;
}
- fd = perf_data_file__switch(file, timestamp,
+ fd = perf_data__switch(data, timestamp,
rec->session->header.data_offset,
at_exit);
if (fd >= 0 && !at_exit) {
if (!quiet)
fprintf(stderr, "[ perf record: Dump %s.%s ]\n",
- file->path, timestamp);
+ data->file.path, timestamp);
/* Output tracking events */
if (!at_exit) {
{
struct perf_session *session = rec->session;
struct machine *machine = &session->machines.host;
- struct perf_data_file *file = &rec->file;
+ struct perf_data *data = &rec->data;
struct record_opts *opts = &rec->opts;
struct perf_tool *tool = &rec->tool;
- int fd = perf_data_file__fd(file);
+ int fd = perf_data__fd(data);
int err = 0;
if (rec->opts.tail_synthesize != tail)
return 0;
- if (file->is_pipe) {
+ if (data->is_pipe) {
err = perf_event__synthesize_features(
tool, session, rec->evlist, process_synthesized_event);
if (err < 0) {
err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads,
process_synthesized_event, opts->sample_address,
- opts->proc_map_timeout);
+ opts->proc_map_timeout, 1);
out:
return err;
}
struct machine *machine;
struct perf_tool *tool = &rec->tool;
struct record_opts *opts = &rec->opts;
- struct perf_data_file *file = &rec->file;
+ struct perf_data *data = &rec->data;
struct perf_session *session;
bool disabled = false, draining = false;
int fd;
signal(SIGUSR2, SIG_IGN);
}
- session = perf_session__new(file, false, tool);
+ session = perf_session__new(data, false, tool);
if (session == NULL) {
pr_err("Perf session creation failed.\n");
return -1;
}
- fd = perf_data_file__fd(file);
+ fd = perf_data__fd(data);
rec->session = session;
record__init_features(rec);
if (forks) {
err = perf_evlist__prepare_workload(rec->evlist, &opts->target,
- argv, file->is_pipe,
+ argv, data->is_pipe,
workload_exec_failed_signal);
if (err < 0) {
pr_err("Couldn't run the workload!\n");
if (!rec->evlist->nr_groups)
perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
- if (file->is_pipe) {
+ if (data->is_pipe) {
err = perf_header__write_pipe(fd);
if (err < 0)
goto out_child;
samples[0] = '\0';
fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s%s ]\n",
- perf_data_file__size(file) / 1024.0 / 1024.0,
- file->path, postfix, samples);
+ perf_data__size(data) / 1024.0 / 1024.0,
+ data->file.path, postfix, samples);
}
out_delete_session:
OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu",
"list of cpus to monitor"),
OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"),
- OPT_STRING('o', "output", &record.file.path, "file",
+ OPT_STRING('o', "output", &record.data.file.path, "file",
"output file name"),
OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit,
&record.opts.no_inherit_set,
OPT_CALLBACK_OPTARG('I', "intr-regs", &record.opts.sample_intr_regs, NULL, "any register",
"sample selected machine registers on interrupt,"
" use -I ? to list register names", parse_regs),
+ OPT_CALLBACK_OPTARG(0, "user-regs", &record.opts.sample_user_regs, NULL, "any register",
+ "sample selected machine registers on interrupt,"
+ " use -I ? to list register names", parse_regs),
OPT_BOOLEAN(0, "running-time", &record.opts.running_time,
"Record running/enabled time of read (:S) events"),
OPT_CALLBACK('k', "clockid", &record.opts,
projects / linux.git / blobdiff