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Diffstat (limited to 'tools/perf/util/data_map.c')
-rw-r--r--tools/perf/util/data_map.c291
1 files changed, 0 insertions, 291 deletions
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
deleted file mode 100644
index 59b65d0bd7c..00000000000
--- a/tools/perf/util/data_map.c
+++ /dev/null
@@ -1,291 +0,0 @@
-#include "data_map.h"
-#include "symbol.h"
-#include "util.h"
-#include "debug.h"
-
-
-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)
-{
- dump_printf(": unhandled!\n");
- return 0;
-}
-
-void register_perf_file_handler(struct perf_file_handler *handler)
-{
- if (!handler->process_sample_event)
- handler->process_sample_event = process_event_stub;
- if (!handler->process_mmap_event)
- handler->process_mmap_event = process_event_stub;
- if (!handler->process_comm_event)
- handler->process_comm_event = process_event_stub;
- if (!handler->process_fork_event)
- handler->process_fork_event = process_event_stub;
- if (!handler->process_exit_event)
- handler->process_exit_event = process_event_stub;
- if (!handler->process_lost_event)
- handler->process_lost_event = process_event_stub;
- if (!handler->process_read_event)
- handler->process_read_event = process_event_stub;
- if (!handler->process_throttle_event)
- handler->process_throttle_event = process_event_stub;
- if (!handler->process_unthrottle_event)
- handler->process_unthrottle_event = process_event_stub;
-
- 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);
- case PERF_RECORD_MMAP:
- return curr_handler->process_mmap_event(event);
- case PERF_RECORD_COMM:
- return curr_handler->process_comm_event(event);
- case PERF_RECORD_FORK:
- return curr_handler->process_fork_event(event);
- case PERF_RECORD_EXIT:
- return curr_handler->process_exit_event(event);
- case PERF_RECORD_LOST:
- return curr_handler->process_lost_event(event);
- case PERF_RECORD_READ:
- return curr_handler->process_read_event(event);
- case PERF_RECORD_THROTTLE:
- return curr_handler->process_throttle_event(event);
- case PERF_RECORD_UNTHROTTLE:
- return curr_handler->process_unthrottle_event(event);
- default:
- curr_handler->total_unknown++;
- return -1;
- }
-}
-
-int perf_header__read_build_ids(int input, u64 offset, u64 size)
-{
- struct build_id_event bev;
- char filename[PATH_MAX];
- u64 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,
- int full_paths,
- int *cwdlen,
- char **cwd)
-{
- int err;
- struct perf_header *header;
- unsigned long head, shift;
- unsigned long offset = 0;
- struct stat input_stat;
- size_t page_size;
- u64 sample_type;
- event_t *event;
- uint32_t size;
- int input;
- char *buf;
-
- 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) {
- pr_err("Failed to open file: %s", input_name);
- if (!strcmp(input_name, "perf.data"))
- pr_err(" (try 'perf record' first)");
- pr_err("\n");
- return -errno;
- }
-
- 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())) {
- pr_err("file: %s not owned by current user or root\n",
- input_name);
- goto out_close;
- }
-
- if (input_stat.st_size == 0) {
- pr_info("zero-sized file, nothing to do!\n");
- goto done;
- }
-
- 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);
-
- 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) {
- pr_err("failed to get the current directory\n");
- err = -errno;
- goto out_delete;
- }
- *cwd = __cwd;
- *cwdlen = strlen(*cwd);
- } else {
- *cwd = NULL;
- *cwdlen = 0;
- }
-
- shift = page_size * (head / page_size);
- offset += shift;
- head -= shift;
-
-remap:
- buf = mmap(NULL, page_size * mmap_window, PROT_READ,
- MAP_SHARED, input, offset);
- if (buf == MAP_FAILED) {
- pr_err("failed to mmap file\n");
- err = -errno;
- goto out_delete;
- }
-
-more:
- event = (event_t *)(buf + head);
-
- size = event->header.size;
- if (!size)
- size = 8;
-
- if (head + event->header.size >= page_size * mmap_window) {
- int munmap_ret;
-
- shift = page_size * (head / page_size);
-
- munmap_ret = munmap(buf, page_size * mmap_window);
- assert(munmap_ret == 0);
-
- offset += shift;
- head -= shift;
- goto remap;
- }
-
- size = event->header.size;
-
- dump_printf("\n%p [%p]: event: %d\n",
- (void *)(offset + head),
- (void *)(long)event->header.size,
- event->header.type);
-
- if (!size || process_event(event, offset, head) < 0) {
-
- dump_printf("%p [%p]: skipping unknown header type: %d\n",
- (void *)(offset + head),
- (void *)(long)(event->header.size),
- event->header.type);
-
- /*
- * assume we lost track of the stream, check alignment, and
- * increment a single u64 in the hope to catch on again 'soon'.
- */
-
- if (unlikely(head & 7))
- head &= ~7ULL;
-
- size = 8;
- }
-
- head += size;
-
- if (offset + head >= header->data_offset + header->data_size)
- goto done;
-
- if (offset + head < (unsigned long)input_stat.st_size)
- goto more;
-
-done:
- err = 0;
-out_close:
- close(input);
-
- return err;
-out_delete:
- perf_header__delete(header);
- goto out_close;
-}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-08 22:26:35 +0000