#include "util/symbol.h"
#include "util/cpumap.h"
#include "util/thread_map.h"
+#include "util/data.h"
#include <unistd.h>
#include <sched.h>
#include <sys/mman.h>
-#ifndef HAVE_ON_EXIT
+#ifndef HAVE_ON_EXIT_SUPPORT
#ifndef ATEXIT_MAX
#define ATEXIT_MAX 32
#endif
struct perf_tool tool;
struct perf_record_opts opts;
u64 bytes_written;
- const char *output_name;
+ struct perf_data_file file;
struct perf_evlist *evlist;
struct perf_session *session;
const char *progname;
- int output;
- unsigned int page_size;
int realtime_prio;
bool no_buildid;
bool no_buildid_cache;
long samples;
- off_t post_processing_offset;
};
-static void advance_output(struct perf_record *rec, size_t size)
+static int do_write_output(struct perf_record *rec, void *buf, size_t size)
{
- rec->bytes_written += size;
-}
+ struct perf_data_file *file = &rec->file;
-static int write_output(struct perf_record *rec, void *buf, size_t size)
-{
while (size) {
- int ret = write(rec->output, buf, size);
+ ssize_t ret = write(file->fd, buf, size);
if (ret < 0) {
- pr_err("failed to write\n");
+ pr_err("failed to write perf data, error: %m\n");
return -1;
}
return 0;
}
+static int write_output(struct perf_record *rec, void *buf, size_t size)
+{
+ return do_write_output(rec, buf, size);
+}
+
static int process_synthesized_event(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample __maybe_unused,
{
unsigned int head = perf_mmap__read_head(md);
unsigned int old = md->prev;
- unsigned char *data = md->base + rec->page_size;
+ unsigned char *data = md->base + page_size;
unsigned long size;
void *buf;
int rc = 0;
"or try again with a smaller value of -m/--mmap_pages.\n"
"(current value: %d)\n", opts->mmap_pages);
rc = -errno;
- } else if (!is_power_of_2(opts->mmap_pages) &&
- (opts->mmap_pages != UINT_MAX)) {
- pr_err("--mmap_pages/-m value must be a power of two.");
- rc = -EINVAL;
} else {
pr_err("failed to mmap with %d (%s)\n", errno, strerror(errno));
rc = -errno;
static int process_buildids(struct perf_record *rec)
{
- u64 size = lseek(rec->output, 0, SEEK_CUR);
+ struct perf_data_file *file = &rec->file;
+ struct perf_session *session = rec->session;
+ u64 start = session->header.data_offset;
+ u64 size = lseek(file->fd, 0, SEEK_CUR);
if (size == 0)
return 0;
- rec->session->fd = rec->output;
- return __perf_session__process_events(rec->session, rec->post_processing_offset,
- size - rec->post_processing_offset,
+ return __perf_session__process_events(session, start,
+ size - start,
size, &build_id__mark_dso_hit_ops);
}
static void perf_record__exit(int status, void *arg)
{
struct perf_record *rec = arg;
+ struct perf_data_file *file = &rec->file;
if (status != 0)
return;
- if (!rec->opts.pipe_output) {
+ if (!file->is_pipe) {
rec->session->header.data_size += rec->bytes_written;
if (!rec->no_buildid)
process_buildids(rec);
perf_session__write_header(rec->session, rec->evlist,
- rec->output, true);
+ file->fd, true);
perf_session__delete(rec->session);
perf_evlist__delete(rec->evlist);
symbol__exit();
return rc;
}
+static void perf_record__init_features(struct perf_record *rec)
+{
+ struct perf_evlist *evsel_list = rec->evlist;
+ struct perf_session *session = rec->session;
+ int feat;
+
+ for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
+ perf_header__set_feat(&session->header, feat);
+
+ if (rec->no_buildid)
+ perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
+
+ if (!have_tracepoints(&evsel_list->entries))
+ perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
+
+ if (!rec->opts.branch_stack)
+ perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
+}
+
static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
{
- struct stat st;
- int flags;
- int err, output, feat;
+ int err;
unsigned long waking = 0;
const bool forks = argc > 0;
struct machine *machine;
struct perf_tool *tool = &rec->tool;
struct perf_record_opts *opts = &rec->opts;
struct perf_evlist *evsel_list = rec->evlist;
- const char *output_name = rec->output_name;
+ struct perf_data_file *file = &rec->file;
struct perf_session *session;
bool disabled = false;
rec->progname = argv[0];
- rec->page_size = sysconf(_SC_PAGE_SIZE);
-
on_exit(perf_record__sig_exit, rec);
signal(SIGCHLD, sig_handler);
signal(SIGINT, sig_handler);
signal(SIGUSR1, sig_handler);
signal(SIGTERM, sig_handler);
- if (!output_name) {
- if (!fstat(STDOUT_FILENO, &st) && S_ISFIFO(st.st_mode))
- opts->pipe_output = true;
- else
- rec->output_name = output_name = "perf.data";
- }
- if (output_name) {
- if (!strcmp(output_name, "-"))
- opts->pipe_output = true;
- else if (!stat(output_name, &st) && st.st_size) {
- char oldname[PATH_MAX];
- snprintf(oldname, sizeof(oldname), "%s.old",
- output_name);
- unlink(oldname);
- rename(output_name, oldname);
- }
- }
-
- flags = O_CREAT|O_RDWR|O_TRUNC;
-
- if (opts->pipe_output)
- output = STDOUT_FILENO;
- else
- output = open(output_name, flags, S_IRUSR | S_IWUSR);
- if (output < 0) {
- perror("failed to create output file");
- return -1;
- }
-
- rec->output = output;
-
- session = perf_session__new(output_name, O_WRONLY,
- true, false, NULL);
+ session = perf_session__new(file, false, NULL);
if (session == NULL) {
pr_err("Not enough memory for reading perf file header\n");
return -1;
rec->session = session;
- for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
- perf_header__set_feat(&session->header, feat);
-
- if (rec->no_buildid)
- perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
-
- if (!have_tracepoints(&evsel_list->entries))
- perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
-
- if (!rec->opts.branch_stack)
- perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
+ perf_record__init_features(rec);
if (forks) {
err = perf_evlist__prepare_workload(evsel_list, &opts->target,
- argv, opts->pipe_output,
+ argv, file->is_pipe,
true);
if (err < 0) {
pr_err("Couldn't run the workload!\n");
*/
on_exit(perf_record__exit, rec);
- if (opts->pipe_output) {
- err = perf_header__write_pipe(output);
+ if (file->is_pipe) {
+ err = perf_header__write_pipe(file->fd);
if (err < 0)
goto out_delete_session;
} else {
err = perf_session__write_header(session, evsel_list,
- output, false);
+ file->fd, false);
if (err < 0)
goto out_delete_session;
}
goto out_delete_session;
}
- rec->post_processing_offset = lseek(output, 0, SEEK_CUR);
-
machine = &session->machines.host;
- if (opts->pipe_output) {
+ if (file->is_pipe) {
err = perf_event__synthesize_attrs(tool, session,
process_synthesized_event);
if (err < 0) {
* return this more properly and also
* propagate errors that now are calling die()
*/
- err = perf_event__synthesize_tracing_data(tool, output, evsel_list,
+ err = perf_event__synthesize_tracing_data(tool, file->fd, evsel_list,
process_synthesized_event);
if (err <= 0) {
pr_err("Couldn't record tracing data.\n");
goto out_delete_session;
}
- advance_output(rec, err);
+ rec->bytes_written += err;
}
}
perf_event__synthesize_guest_os, tool);
}
- if (perf_target__has_task(&opts->target))
- err = perf_event__synthesize_thread_map(tool, evsel_list->threads,
- process_synthesized_event,
- machine);
- else if (perf_target__has_cpu(&opts->target))
- err = perf_event__synthesize_threads(tool, process_synthesized_event,
- machine);
- else /* command specified */
- err = 0;
-
+ err = __machine__synthesize_threads(machine, tool, &opts->target, evsel_list->threads,
+ process_synthesized_event, opts->sample_address);
if (err != 0)
goto out_delete_session;
* (apart from group members) have enable_on_exec=1 set,
* so don't spoil it by prematurely enabling them.
*/
- if (!perf_target__none(&opts->target))
+ if (!target__none(&opts->target))
perf_evlist__enable(evsel_list);
/*
* die with the process and we wait for that. Thus no need to
* disable events in this case.
*/
- if (done && !disabled && !perf_target__none(&opts->target)) {
+ if (done && !disabled && !target__none(&opts->target)) {
perf_evlist__disable(evsel_list);
disabled = true;
}
fprintf(stderr,
"[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n",
(double)rec->bytes_written / 1024.0 / 1024.0,
- output_name,
+ file->path,
rec->bytes_written / 24);
return 0;
BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL),
BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN),
BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL),
+ BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX),
+ BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX),
+ BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX),
BRANCH_END
};
return ret;
}
-#ifdef LIBUNWIND_SUPPORT
+#ifdef HAVE_LIBUNWIND_SUPPORT
static int get_stack_size(char *str, unsigned long *_size)
{
char *endptr;
max_size, str);
return -1;
}
-#endif /* LIBUNWIND_SUPPORT */
+#endif /* HAVE_LIBUNWIND_SUPPORT */
-int record_parse_callchain_opt(const struct option *opt,
- const char *arg, int unset)
+int record_parse_callchain(const char *arg, struct perf_record_opts *opts)
{
- struct perf_record_opts *opts = opt->value;
char *tok, *name, *saveptr = NULL;
char *buf;
int ret = -1;
- /* --no-call-graph */
- if (unset)
- return 0;
-
- /* We specified default option if none is provided. */
- BUG_ON(!arg);
-
/* We need buffer that we know we can write to. */
buf = malloc(strlen(arg) + 1);
if (!buf)
"needed for -g fp\n");
break;
-#ifdef LIBUNWIND_SUPPORT
+#ifdef HAVE_LIBUNWIND_SUPPORT
/* Dwarf style */
} else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
const unsigned long default_stack_dump_size = 8192;
ret = get_stack_size(tok, &size);
opts->stack_dump_size = size;
}
-
- if (!ret)
- pr_debug("callchain: stack dump size %d\n",
- opts->stack_dump_size);
-#endif /* LIBUNWIND_SUPPORT */
+#endif /* HAVE_LIBUNWIND_SUPPORT */
} else {
- pr_err("callchain: Unknown -g option "
+ pr_err("callchain: Unknown --call-graph option "
"value: %s\n", arg);
break;
}
} while (0);
free(buf);
+ return ret;
+}
+static void callchain_debug(struct perf_record_opts *opts)
+{
+ pr_debug("callchain: type %d\n", opts->call_graph);
+
+ if (opts->call_graph == CALLCHAIN_DWARF)
+ pr_debug("callchain: stack dump size %d\n",
+ opts->stack_dump_size);
+}
+
+int record_parse_callchain_opt(const struct option *opt,
+ const char *arg,
+ int unset)
+{
+ struct perf_record_opts *opts = opt->value;
+ int ret;
+
+ /* --no-call-graph */
+ if (unset) {
+ opts->call_graph = CALLCHAIN_NONE;
+ pr_debug("callchain: disabled\n");
+ return 0;
+ }
+
+ ret = record_parse_callchain(arg, opts);
if (!ret)
- pr_debug("callchain: type %d\n", opts->call_graph);
+ callchain_debug(opts);
return ret;
}
+int record_callchain_opt(const struct option *opt,
+ const char *arg __maybe_unused,
+ int unset __maybe_unused)
+{
+ struct perf_record_opts *opts = opt->value;
+
+ if (opts->call_graph == CALLCHAIN_NONE)
+ opts->call_graph = CALLCHAIN_FP;
+
+ callchain_debug(opts);
+ return 0;
+}
+
static const char * const record_usage[] = {
"perf record [<options>] [<command>]",
"perf record [<options>] -- <command> [<options>]",
},
};
-#define CALLCHAIN_HELP "do call-graph (stack chain/backtrace) recording: "
+#define CALLCHAIN_HELP "setup and enables call-graph (stack chain/backtrace) recording: "
-#ifdef LIBUNWIND_SUPPORT
-const char record_callchain_help[] = CALLCHAIN_HELP "[fp] dwarf";
+#ifdef HAVE_LIBUNWIND_SUPPORT
+const char record_callchain_help[] = CALLCHAIN_HELP "fp dwarf";
#else
-const char record_callchain_help[] = CALLCHAIN_HELP "[fp]";
+const char record_callchain_help[] = CALLCHAIN_HELP "fp";
#endif
/*
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.output_name, "file",
+ OPT_STRING('o', "output", &record.file.path, "file",
"output file name"),
OPT_BOOLEAN('i', "no-inherit", &record.opts.no_inherit,
"child tasks do not inherit counters"),
OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"),
- OPT_UINTEGER('m', "mmap-pages", &record.opts.mmap_pages,
- "number of mmap data pages"),
+ OPT_CALLBACK('m', "mmap-pages", &record.opts.mmap_pages, "pages",
+ "number of mmap data pages",
+ perf_evlist__parse_mmap_pages),
OPT_BOOLEAN(0, "group", &record.opts.group,
"put the counters into a counter group"),
- OPT_CALLBACK_DEFAULT('g', "call-graph", &record.opts,
- "mode[,dump_size]", record_callchain_help,
- &record_parse_callchain_opt, "fp"),
+ OPT_CALLBACK_NOOPT('g', NULL, &record.opts,
+ NULL, "enables call-graph recording" ,
+ &record_callchain_opt),
+ OPT_CALLBACK(0, "call-graph", &record.opts,
+ "mode[,dump_size]", record_callchain_help,
+ &record_parse_callchain_opt),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_BOOLEAN('q', "quiet", &quiet, "don't print any message"),
parse_branch_stack),
OPT_BOOLEAN('W', "weight", &record.opts.sample_weight,
"sample by weight (on special events only)"),
+ OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction,
+ "sample transaction flags (special events only)"),
OPT_END()
};
argc = parse_options(argc, argv, record_options, record_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- if (!argc && perf_target__none(&rec->opts.target))
+ if (!argc && target__none(&rec->opts.target))
usage_with_options(record_usage, record_options);
if (nr_cgroups && !rec->opts.target.system_wide) {
goto out_symbol_exit;
}
- err = perf_target__validate(&rec->opts.target);
+ err = target__validate(&rec->opts.target);
if (err) {
- perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
+ target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
ui__warning("%s", errbuf);
}
- err = perf_target__parse_uid(&rec->opts.target);
+ err = target__parse_uid(&rec->opts.target);
if (err) {
int saved_errno = errno;
- perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
+ target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
ui__error("%s", errbuf);
err = -saved_errno;
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;
}
projects / firefly-linux-kernel-4.4.55.git / blobdiff