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

Pull perf updates from Ingo Molnar:
 "Lots of tooling updates - too many to list, here's a few highlights:

   - Various subcommand updates to 'perf trace', 'perf report', 'perf
     record', 'perf annotate', 'perf script', 'perf test', etc.

   - CPU and NUMA topology and affinity handling improvements,

   - HW tracing and HW support updates:
      - Intel PT updates
      - ARM CoreSight updates
      - vendor HW event updates

   - BPF updates

   - Tons of infrastructure updates, both on the build system and the
     library support side

   - Documentation updates.

   - ... and lots of other changes, see the changelog for details.

  Kernel side updates:

   - Tighten up kprobes blacklist handling, reduce the number of places
     where developers can install a kprobe and hang/crash the system.

   - Fix/enhance vma address filter handling.

   - Various PMU driver updates, small fixes and additions.

   - refcount_t conversions

   - BPF updates

   - error code propagation enhancements

   - misc other changes"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (238 commits)
  perf script python: Add Python3 support to syscall-counts-by-pid.py
  perf script python: Add Python3 support to syscall-counts.py
  perf script python: Add Python3 support to stat-cpi.py
  perf script python: Add Python3 support to stackcollapse.py
  perf script python: Add Python3 support to sctop.py
  perf script python: Add Python3 support to powerpc-hcalls.py
  perf script python: Add Python3 support to net_dropmonitor.py
  perf script python: Add Python3 support to mem-phys-addr.py
  perf script python: Add Python3 support to failed-syscalls-by-pid.py
  perf script python: Add Python3 support to netdev-times.py
  perf tools: Add perf_exe() helper to find perf binary
  perf script: Handle missing fields with -F +..
  perf data: Add perf_data__open_dir_data function
  perf data: Add perf_data__(create_dir|close_dir) functions
  perf data: Fail check_backup in case of error
  perf data: Make check_backup work over directories
  perf tools: Add rm_rf_perf_data function
  perf tools: Add pattern name checking to rm_rf
  perf tools: Add depth checking to rm_rf
  perf data: Add global path holder
  ...

1 files changed, 31 insertions, 7 deletions

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b36061cd1ab8..f5b3a1e9c1dd 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -19,6 +19,7 @@
 #include <traceevent/event-parse.h>
 #include <api/fs/tracing_path.h>
 #include <bpf/bpf.h>
+#include "util/bpf_map.h"
 #include "builtin.h"
 #include "util/cgroup.h"
 #include "util/color.h"
@@ -29,6 +30,8 @@
 #include "util/evlist.h"
 #include <subcmd/exec-cmd.h>
 #include "util/machine.h"
+#include "util/map.h"
+#include "util/symbol.h"
 #include "util/path.h"
 #include "util/session.h"
 #include "util/thread.h"
@@ -85,6 +88,9 @@ struct trace {
 					  *augmented;
 		}		events;
 	} syscalls;
+	struct {
+		struct bpf_map *map;
+	} dump;
 	struct record_opts	opts;
 	struct perf_evlist	*evlist;
 	struct machine		*host;
@@ -1039,6 +1045,9 @@ static const size_t trace__entry_str_size = 2048;
 
 static struct file *thread_trace__files_entry(struct thread_trace *ttrace, int fd)
 {
+	if (fd < 0)
+		return NULL;
+
 	if (fd > ttrace->files.max) {
 		struct file *nfiles = realloc(ttrace->files.table, (fd + 1) * sizeof(struct file));
 
@@ -2766,7 +2775,8 @@ static int trace__set_filter_loop_pids(struct trace *trace)
 		if (parent == NULL)
 			break;
 
-		if (!strcmp(thread__comm_str(parent), "sshd")) {
+		if (!strcmp(thread__comm_str(parent), "sshd") ||
+		    strstarts(thread__comm_str(parent), "gnome-terminal")) {
 			pids[nr++] = parent->tid;
 			break;
 		}
@@ -2991,6 +3001,9 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	if (err < 0)
 		goto out_error_apply_filters;
 
+	if (trace->dump.map)
+		bpf_map__fprintf(trace->dump.map, trace->output);
+
 	err = perf_evlist__mmap(evlist, trace->opts.mmap_pages);
 	if (err < 0)
 		goto out_error_mmap;
@@ -3141,11 +3154,9 @@ static int trace__replay(struct trace *trace)
 		{ "probe:vfs_getname",	     trace__vfs_getname, },
 	};
 	struct perf_data data = {
-		.file      = {
-			.path = input_name,
-		},
-		.mode      = PERF_DATA_MODE_READ,
-		.force     = trace->force,
+		.path  = input_name,
+		.mode  = PERF_DATA_MODE_READ,
+		.force = trace->force,
 	};
 	struct perf_session *session;
 	struct perf_evsel *evsel;
@@ -3680,6 +3691,7 @@ int cmd_trace(int argc, const char **argv)
 		.max_stack = UINT_MAX,
 		.max_events = ULONG_MAX,
 	};
+	const char *map_dump_str = NULL;
 	const char *output_name = NULL;
 	const struct option trace_options[] = {
 	OPT_CALLBACK('e', "event", &trace, "event",
@@ -3712,6 +3724,9 @@ int cmd_trace(int argc, const char **argv)
 	OPT_CALLBACK(0, "duration", &trace, "float",
 		     "show only events with duration > N.M ms",
 		     trace__set_duration),
+#ifdef HAVE_LIBBPF_SUPPORT
+	OPT_STRING(0, "map-dump", &map_dump_str, "BPF map", "BPF map to periodically dump"),
+#endif
 	OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
 	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 	OPT_BOOLEAN('T', "time", &trace.full_time,
@@ -3806,6 +3821,14 @@ int cmd_trace(int argc, const char **argv)
 
 	err = -1;
 
+	if (map_dump_str) {
+		trace.dump.map = bpf__find_map_by_name(map_dump_str);
+		if (trace.dump.map == NULL) {
+			pr_err("ERROR: BPF map \"%s\" not found\n", map_dump_str);
+			goto out;
+		}
+	}
+
 	if (trace.trace_pgfaults) {
 		trace.opts.sample_address = true;
 		trace.opts.sample_time = true;
@@ -3865,7 +3888,8 @@ int cmd_trace(int argc, const char **argv)
 				goto init_augmented_syscall_tp;
 			}
 
-			if (strcmp(perf_evsel__name(evsel), "raw_syscalls:sys_enter") == 0) {
+			if (trace.syscalls.events.augmented->priv == NULL &&
+			    strstr(perf_evsel__name(evsel), "syscalls:sys_enter")) {
 				struct perf_evsel *augmented = trace.syscalls.events.augmented;
 				if (perf_evsel__init_augmented_syscall_tp(augmented, evsel) ||
 				    perf_evsel__init_augmented_syscall_tp_args(augmented))