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Diffstat (limited to 'tools/perf/util/data_map.c')
-rw-r--r--tools/perf/util/data_map.c167
1 files changed, 118 insertions, 49 deletions
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index 242b0555ab91..ca0bedf637c2 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -8,11 +8,9 @@ static struct perf_file_handler *curr_handler;
static unsigned long mmap_window = 32;
static char __cwd[PATH_MAX];
-static int
-process_event_stub(event_t *event __used,
- unsigned long offset __used,
- unsigned long head __used)
+static int process_event_stub(event_t *event __used)
{
+ dump_printf(": unhandled!\n");
return 0;
}
@@ -40,36 +38,97 @@ void register_perf_file_handler(struct perf_file_handler *handler)
curr_handler = handler;
}
+static const char *event__name[] = {
+ [0] = "TOTAL",
+ [PERF_RECORD_MMAP] = "MMAP",
+ [PERF_RECORD_LOST] = "LOST",
+ [PERF_RECORD_COMM] = "COMM",
+ [PERF_RECORD_EXIT] = "EXIT",
+ [PERF_RECORD_THROTTLE] = "THROTTLE",
+ [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
+ [PERF_RECORD_FORK] = "FORK",
+ [PERF_RECORD_READ] = "READ",
+ [PERF_RECORD_SAMPLE] = "SAMPLE",
+};
+
+unsigned long event__total[PERF_RECORD_MAX];
+
+void event__print_totals(void)
+{
+ int i;
+ for (i = 0; i < PERF_RECORD_MAX; ++i)
+ pr_info("%10s events: %10ld\n",
+ event__name[i], event__total[i]);
+}
+
static int
process_event(event_t *event, unsigned long offset, unsigned long head)
{
trace_event(event);
+ if (event->header.type < PERF_RECORD_MAX) {
+ dump_printf("%p [%p]: PERF_RECORD_%s",
+ (void *)(offset + head),
+ (void *)(long)(event->header.size),
+ event__name[event->header.type]);
+ ++event__total[0];
+ ++event__total[event->header.type];
+ }
+
switch (event->header.type) {
case PERF_RECORD_SAMPLE:
- return curr_handler->process_sample_event(event, offset, head);
+ return curr_handler->process_sample_event(event);
case PERF_RECORD_MMAP:
- return curr_handler->process_mmap_event(event, offset, head);
+ return curr_handler->process_mmap_event(event);
case PERF_RECORD_COMM:
- return curr_handler->process_comm_event(event, offset, head);
+ return curr_handler->process_comm_event(event);
case PERF_RECORD_FORK:
- return curr_handler->process_fork_event(event, offset, head);
+ return curr_handler->process_fork_event(event);
case PERF_RECORD_EXIT:
- return curr_handler->process_exit_event(event, offset, head);
+ return curr_handler->process_exit_event(event);
case PERF_RECORD_LOST:
- return curr_handler->process_lost_event(event, offset, head);
+ return curr_handler->process_lost_event(event);
case PERF_RECORD_READ:
- return curr_handler->process_read_event(event, offset, head);
+ return curr_handler->process_read_event(event);
case PERF_RECORD_THROTTLE:
- return curr_handler->process_throttle_event(event, offset, head);
+ return curr_handler->process_throttle_event(event);
case PERF_RECORD_UNTHROTTLE:
- return curr_handler->process_unthrottle_event(event, offset, head);
+ return curr_handler->process_unthrottle_event(event);
default:
curr_handler->total_unknown++;
return -1;
}
}
+int perf_header__read_build_ids(int input, off_t offset, off_t size)
+{
+ struct build_id_event bev;
+ char filename[PATH_MAX];
+ off_t limit = offset + size;
+ int err = -1;
+
+ while (offset < limit) {
+ struct dso *dso;
+ ssize_t len;
+
+ if (read(input, &bev, sizeof(bev)) != sizeof(bev))
+ goto out;
+
+ len = bev.header.size - sizeof(bev);
+ if (read(input, filename, len) != len)
+ goto out;
+
+ dso = dsos__findnew(filename);
+ if (dso != NULL)
+ dso__set_build_id(dso, &bev.build_id);
+
+ offset += bev.header.size;
+ }
+ err = 0;
+out:
+ return err;
+}
+
int mmap_dispatch_perf_file(struct perf_header **pheader,
const char *input_name,
int force,
@@ -77,7 +136,7 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
int *cwdlen,
char **cwd)
{
- int ret, rc = EXIT_FAILURE;
+ int err;
struct perf_header *header;
unsigned long head, shift;
unsigned long offset = 0;
@@ -89,56 +148,63 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
int input;
char *buf;
- if (!curr_handler)
- die("Forgot to register perf file handler");
+ if (curr_handler == NULL) {
+ pr_debug("Forgot to register perf file handler\n");
+ return -EINVAL;
+ }
page_size = getpagesize();
input = open(input_name, O_RDONLY);
if (input < 0) {
- fprintf(stderr, " failed to open file: %s", input_name);
+ pr_err("Failed to open file: %s", input_name);
if (!strcmp(input_name, "perf.data"))
- fprintf(stderr, " (try 'perf record' first)");
- fprintf(stderr, "\n");
- exit(-1);
+ pr_err(" (try 'perf record' first)");
+ pr_err("\n");
+ return -errno;
}
- ret = fstat(input, &input_stat);
- if (ret < 0) {
- perror("failed to stat file");
- exit(-1);
+ if (fstat(input, &input_stat) < 0) {
+ pr_err("failed to stat file");
+ err = -errno;
+ goto out_close;
}
+ err = -EACCES;
if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
- fprintf(stderr, "file: %s not owned by current user or root\n",
+ pr_err("file: %s not owned by current user or root\n",
input_name);
- exit(-1);
+ goto out_close;
}
- if (!input_stat.st_size) {
- fprintf(stderr, "zero-sized file, nothing to do!\n");
- exit(0);
+ if (input_stat.st_size == 0) {
+ pr_info("zero-sized file, nothing to do!\n");
+ goto done;
}
- *pheader = perf_header__read(input);
- header = *pheader;
+ err = -ENOMEM;
+ header = perf_header__new();
+ if (header == NULL)
+ goto out_close;
+
+ err = perf_header__read(header, input);
+ if (err < 0)
+ goto out_delete;
+ *pheader = header;
head = header->data_offset;
sample_type = perf_header__sample_type(header);
- if (curr_handler->sample_type_check)
- if (curr_handler->sample_type_check(sample_type) < 0)
- exit(-1);
-
- if (load_kernel() < 0) {
- perror("failed to load kernel symbols");
- return EXIT_FAILURE;
- }
+ err = -EINVAL;
+ if (curr_handler->sample_type_check &&
+ curr_handler->sample_type_check(sample_type) < 0)
+ goto out_delete;
if (!full_paths) {
if (getcwd(__cwd, sizeof(__cwd)) == NULL) {
- perror("failed to get the current directory");
- return EXIT_FAILURE;
+ pr_err("failed to get the current directory\n");
+ err = -errno;
+ goto out_delete;
}
*cwd = __cwd;
*cwdlen = strlen(*cwd);
@@ -152,11 +218,12 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
head -= shift;
remap:
- buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
- MAP_SHARED, input, offset);
+ buf = mmap(NULL, page_size * mmap_window, PROT_READ,
+ MAP_SHARED, input, offset);
if (buf == MAP_FAILED) {
- perror("failed to mmap file");
- exit(-1);
+ pr_err("failed to mmap file\n");
+ err = -errno;
+ goto out_delete;
}
more:
@@ -213,10 +280,12 @@ more:
goto more;
done:
- rc = EXIT_SUCCESS;
+ err = 0;
+out_close:
close(input);
- return rc;
+ return err;
+out_delete:
+ perf_header__delete(header);
+ goto out_close;
}
-
-
generated by cgit (git 2.34.1) at 2025-05-18 08:40:06 +0000