Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf updates from Thomas Gleixner:
 "Perf updates and fixes:

  Kernel:
   - Handle events which have the bpf_event attribute set as side band
     events as they carry information about BPF programs.
   - Add missing switch-case fall-through comments

  Libraries:
   - Fix leaks and double frees in error code paths.
   - Prevent buffer overflows in libtraceevent

  Tools:
   - Improvements in handling Intel BT/PTS
   - Add BTF ELF markers to perf trace BPF programs to improve output
   - Support --time, --cpu, --pid and --tid filters for perf diff
   - Calculate the column width in perf annotate as the hardcoded 6
     characters for the instruction are not sufficient
   - Small fixes all over the place"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
  perf/core: Mark expected switch fall-through
  perf/x86/intel/uncore: Fix client IMC events return huge result
  perf/ring_buffer: Use high order allocations for AUX buffers optimistically
  perf data: Force perf_data__open|close zero data->file.path
  perf session: Fix double free in perf_data__close
  perf evsel: Probe for precise_ip with simple attr
  perf tools: Read and store caps/max_precise in perf_pmu
  perf hist: Fix memory leak of srcline
  perf hist: Add error path into hist_entry__init
  perf c2c: Fix c2c report for empty numa node
  perf script python: Add Python3 support to intel-pt-events.py
  perf script python: Add Python3 support to event_analyzing_sample.py
  perf script python: add Python3 support to check-perf-trace.py
  perf script python: Add Python3 support to futex-contention.py
  perf script python: Remove mixed indentation
  perf diff: Support --pid/--tid filter options
  perf diff: Support --cpu filter option
  perf diff: Support --time filter option
  perf thread: Generalize function to copy from thread addr space from intel-bts code
  perf annotate: Calculate the max instruction name, align column to that
  ...

1 files changed, 50 insertions, 1 deletions

diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c
index 6193b46050a5..0f53baec660e 100644
--- a/tools/perf/util/time-utils.c
+++ b/tools/perf/util/time-utils.c
@@ -11,6 +11,8 @@
 #include "perf.h"
 #include "debug.h"
 #include "time-utils.h"
+#include "session.h"
+#include "evlist.h"
 
 int parse_nsec_time(const char *str, u64 *ptime)
 {
@@ -374,7 +376,7 @@ bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf,
 	struct perf_time_interval *ptime;
 	int i;
 
-	if ((timestamp == 0) || (num == 0))
+	if ((!ptime_buf) || (timestamp == 0) || (num == 0))
 		return false;
 
 	if (num == 1)
@@ -396,6 +398,53 @@ bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf,
 	return (i == num) ? true : false;
 }
 
+int perf_time__parse_for_ranges(const char *time_str,
+				struct perf_session *session,
+				struct perf_time_interval **ranges,
+				int *range_size, int *range_num)
+{
+	struct perf_time_interval *ptime_range;
+	int size, num, ret;
+
+	ptime_range = perf_time__range_alloc(time_str, &size);
+	if (!ptime_range)
+		return -ENOMEM;
+
+	if (perf_time__parse_str(ptime_range, time_str) != 0) {
+		if (session->evlist->first_sample_time == 0 &&
+		    session->evlist->last_sample_time == 0) {
+			pr_err("HINT: no first/last sample time found in perf data.\n"
+			       "Please use latest perf binary to execute 'perf record'\n"
+			       "(if '--buildid-all' is enabled, please set '--timestamp-boundary').\n");
+			ret = -EINVAL;
+			goto error;
+		}
+
+		num = perf_time__percent_parse_str(
+				ptime_range, size,
+				time_str,
+				session->evlist->first_sample_time,
+				session->evlist->last_sample_time);
+
+		if (num < 0) {
+			pr_err("Invalid time string\n");
+			ret = -EINVAL;
+			goto error;
+		}
+	} else {
+		num = 1;
+	}
+
+	*range_size = size;
+	*range_num = num;
+	*ranges = ptime_range;
+	return 0;
+
+error:
+	free(ptime_range);
+	return ret;
+}
+
 int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz)
 {
 	u64  sec = timestamp / NSEC_PER_SEC;