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

Pull perf updates from Ingo Molnar:
 "Kernel side changes:

   - Clean up the x86 instruction decoder (Masami Hiramatsu)

   - Add new uprobes optimization for PUSH instructions on x86 (Yonghong
     Song)

   - Add MSR_IA32_THERM_STATUS to the MSR events (Stephane Eranian)

   - Fix misc bugs, update documentation, plus various cleanups (Jiri
     Olsa)

  There's a large number of tooling side improvements:

   - Intel-PT/BTS improvements (Adrian Hunter)

   - Numerous 'perf trace' improvements (Arnaldo Carvalho de Melo)

   - Introduce an errno code to string facility (Hendrik Brueckner)

   - Various build system improvements (Jiri Olsa)

   - Add support for CoreSight trace decoding by making the perf tools
     use the external openCSD (Mathieu Poirier, Tor Jeremiassen)

   - Add ARM Statistical Profiling Extensions (SPE) support (Kim
     Phillips)

   - libtraceevent updates (Steven Rostedt)

   - Intel vendor event JSON updates (Andi Kleen)

   - Introduce 'perf report --mmaps' and 'perf report --tasks' to show
     info present in 'perf.data' (Jiri Olsa, Arnaldo Carvalho de Melo)

   - Add infrastructure to record first and last sample time to the
     perf.data file header, so that when processing all samples in a
     'perf record' session, such as when doing build-id processing, or
     when specifically requesting that that info be recorded, use that
     in 'perf report --time', that also got support for percent slices
     in addition to absolute ones.

     I.e. now it is possible to ask for the samples in the 10%-20% time
     slice of a perf.data file (Jin Yao)

   - Allow system wide 'perf stat --per-thread', sorting the result (Jin
     Yao)

     E.g.:

      [root@jouet ~]# perf stat --per-thread --metrics IPC
      ^C
       Performance counter stats for 'system wide':

                  make-22229  23,012,094,032  inst_retired.any   #  0.8 IPC
                   cc1-22419     692,027,497  inst_retired.any   #  0.8 IPC
                   gcc-22418     328,231,855  inst_retired.any   #  0.9 IPC
                   cc1-22509     220,853,647  inst_retired.any   #  0.8 IPC
                   gcc-22486     199,874,810  inst_retired.any   #  1.0 IPC
                    as-22466     177,896,365  inst_retired.any   #  0.9 IPC
                   cc1-22465     150,732,374  inst_retired.any   #  0.8 IPC
                   gcc-22508     112,555,593  inst_retired.any   #  0.9 IPC
                   cc1-22487     108,964,079  inst_retired.any   #  0.7 IPC
       qemu-system-x86-2697       21,330,550  inst_retired.any   #  0.3 IPC
       systemd-journal-551        20,642,951  inst_retired.any   #  0.4 IPC
       docker-containe-17651       9,552,892  inst_retired.any   #  0.5 IPC
       dockerd-current-9809        7,528,586  inst_retired.any   #  0.5 IPC
                  make-22153  12,504,194,380  inst_retired.any   #  0.8 IPC
               python2-22429  12,081,290,954  inst_retired.any   #  0.8 IPC
      <SNIP>
               python2-22429  15,026,328,103  cpu_clk_unhalted.thread
                   cc1-22419     826,660,193  cpu_clk_unhalted.thread
                   gcc-22418     365,321,295  cpu_clk_unhalted.thread
                   cc1-22509     279,169,362  cpu_clk_unhalted.thread
                   gcc-22486     210,156,950  cpu_clk_unhalted.thread
      <SNIP>

           5.638075538 seconds time elapsed

     [root@jouet ~]#

   - Improve shell auto-completion of perf events (Jin Yao)

   - 'perf probe' improvements (Masami Hiramatsu)

   - Improve PMU infrastructure to support amp64's ThunderX2
     implementation defined core events (Ganapatrao Kulkarni)

   - Various annotation related improvements and fixes (Thomas Richter)

   - Clarify usage of 'overwrite' and 'backward' in the evlist/mmap
     code, removing the 'overwrite' parameter from several functions as
     it was always used it as 'false' (Wang Nan)

   - Fix/improve 'perf record' reverse recording support (Wang Nan)

   - Improve command line options documentation (Sihyeon Jang)

   - Optimize sample parsing for ordering events, where we don't need to
     parse all the PERF_SAMPLE_ bits, just the ones leading to the
     timestamp needed to reorder events (Jiri Olsa)

   - Generalize the annotation code to support other source information
     besides objdump/DWARF obtained ones, starting with python scripts,
     that will is slated to be merged soon (Jiri Olsa)

   - ... and a lot more that I failed to list, see the shortlog and
     changelog for details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
  perf trace beauty flock: Move to separate object file
  perf evlist: Remove fcntl.h from evlist.h
  perf trace beauty futex: Beautify FUTEX_BITSET_MATCH_ANY
  perf trace: Do not print from time delta for interrupted syscall lines
  perf trace: Add --print-sample
  perf bpf: Remove misplaced __maybe_unused attribute
  MAINTAINERS: Adding entry for CoreSight trace decoding
  perf tools: Add mechanic to synthesise CoreSight trace packets
  perf tools: Add full support for CoreSight trace decoding
  pert tools: Add queue management functionality
  perf tools: Add functionality to communicate with the openCSD decoder
  perf tools: Add support for decoding CoreSight trace data
  perf tools: Add decoder mechanic to support dumping trace data
  perf tools: Add processing of coresight metadata
  perf tools: Add initial entry point for decoder CoreSight traces
  perf tools: Integrating the CoreSight decoding library
  perf vendor events intel: Update IvyTown files to V20
  perf vendor events intel: Update IvyBridge files to V20
  perf vendor events intel: Update BroadwellDE events to V7
  perf vendor events intel: Update SkylakeX events to V1.06
  ...

4 files changed, 76 insertions, 36 deletions

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 7ce724fc0544..e5f2acbb70cc 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -1094,7 +1094,7 @@ static enum event_type __read_token(char **tok)
 		if (strcmp(*tok, "LOCAL_PR_FMT") == 0) {
 			free(*tok);
 			*tok = NULL;
-			return force_token("\"\%s\" ", tok);
+			return force_token("\"%s\" ", tok);
 		} else if (strcmp(*tok, "STA_PR_FMT") == 0) {
 			free(*tok);
 			*tok = NULL;
@@ -3970,6 +3970,11 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 				val &= ~fval;
 			}
 		}
+		if (val) {
+			if (print && arg->flags.delim)
+				trace_seq_puts(s, arg->flags.delim);
+			trace_seq_printf(s, "0x%llx", val);
+		}
 		break;
 	case PRINT_SYMBOL:
 		val = eval_num_arg(data, size, event, arg->symbol.field);
@@ -3980,6 +3985,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 				break;
 			}
 		}
+		if (!flag)
+			trace_seq_printf(s, "0x%llx", val);
 		break;
 	case PRINT_HEX:
 	case PRINT_HEX_STR:
@@ -4293,6 +4300,26 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 				goto process_again;
 			case 'p':
 				ls = 1;
+				if (isalnum(ptr[1])) {
+					ptr++;
+					/* Check for special pointers */
+					switch (*ptr) {
+					case 's':
+					case 'S':
+					case 'f':
+					case 'F':
+						break;
+					default:
+						/*
+						 * Older kernels do not process
+						 * dereferenced pointers.
+						 * Only process if the pointer
+						 * value is a printable.
+						 */
+						if (isprint(*(char *)bptr))
+							goto process_string;
+					}
+				}
 				/* fall through */
 			case 'd':
 			case 'u':
@@ -4345,6 +4372,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 
 				break;
 			case 's':
+ process_string:
 				arg = alloc_arg();
 				if (!arg) {
 					do_warning_event(event, "%s(%d): not enough memory!",
@@ -4949,21 +4977,27 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 				else
 					ls = 2;
 
-				if (*(ptr+1) == 'F' || *(ptr+1) == 'f' ||
-				    *(ptr+1) == 'S' || *(ptr+1) == 's') {
+				if (isalnum(ptr[1]))
 					ptr++;
+
+				if (arg->type == PRINT_BSTRING) {
+					trace_seq_puts(s, arg->string.string);
+					break;
+				}
+
+				if (*ptr == 'F' || *ptr == 'f' ||
+				    *ptr == 'S' || *ptr == 's') {
 					show_func = *ptr;
-				} else if (*(ptr+1) == 'M' || *(ptr+1) == 'm') {
-					print_mac_arg(s, *(ptr+1), data, size, event, arg);
-					ptr++;
+				} else if (*ptr == 'M' || *ptr == 'm') {
+					print_mac_arg(s, *ptr, data, size, event, arg);
 					arg = arg->next;
 					break;
-				} else if (*(ptr+1) == 'I' || *(ptr+1) == 'i') {
+				} else if (*ptr == 'I' || *ptr == 'i') {
 					int n;
 
-					n = print_ip_arg(s, ptr+1, data, size, event, arg);
+					n = print_ip_arg(s, ptr, data, size, event, arg);
 					if (n > 0) {
-						ptr += n;
+						ptr += n - 1;
 						arg = arg->next;
 						break;
 					}
@@ -5532,8 +5566,14 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
 
 	event = pevent_find_event_by_record(pevent, record);
 	if (!event) {
-		do_warning("ug! no event found for type %d",
-			   trace_parse_common_type(pevent, record->data));
+		int i;
+		int type = trace_parse_common_type(pevent, record->data);
+
+		do_warning("ug! no event found for type %d", type);
+		trace_seq_printf(s, "[UNKNOWN TYPE %d]", type);
+		for (i = 0; i < record->size; i++)
+			trace_seq_printf(s, " %02x",
+					 ((unsigned char *)record->data)[i]);
 		return;
 	}
 
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index a16756ae3526..d542cb60ca1a 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -120,12 +120,12 @@ char **traceevent_plugin_list_options(void)
 		for (op = reg->options; op->name; op++) {
 			char *alias = op->plugin_alias ? op->plugin_alias : op->file;
 			char **temp = list;
+			int ret;
 
-			name = malloc(strlen(op->name) + strlen(alias) + 2);
-			if (!name)
+			ret = asprintf(&name, "%s:%s", alias, op->name);
+			if (ret < 0)
 				goto err;
 
-			sprintf(name, "%s:%s", alias, op->name);
 			list = realloc(list, count + 2);
 			if (!list) {
 				list = temp;
@@ -290,17 +290,14 @@ load_plugin(struct pevent *pevent, const char *path,
 	const char *alias;
 	char *plugin;
 	void *handle;
+	int ret;
 
-	plugin = malloc(strlen(path) + strlen(file) + 2);
-	if (!plugin) {
+	ret = asprintf(&plugin, "%s/%s", path, file);
+	if (ret < 0) {
 		warning("could not allocate plugin memory\n");
 		return;
 	}
 
-	strcpy(plugin, path);
-	strcat(plugin, "/");
-	strcat(plugin, file);
-
 	handle = dlopen(plugin, RTLD_NOW | RTLD_GLOBAL);
 	if (!handle) {
 		warning("could not load plugin '%s'\n%s\n",
@@ -391,6 +388,7 @@ load_plugins(struct pevent *pevent, const char *suffix,
 	char *home;
 	char *path;
 	char *envdir;
+	int ret;
 
 	if (pevent->flags & PEVENT_DISABLE_PLUGINS)
 		return;
@@ -421,16 +419,12 @@ load_plugins(struct pevent *pevent, const char *suffix,
 	if (!home)
 		return;
 
-	path = malloc(strlen(home) + strlen(LOCAL_PLUGIN_DIR) + 2);
-	if (!path) {
+	ret = asprintf(&path, "%s/%s", home, LOCAL_PLUGIN_DIR);
+	if (ret < 0) {
 		warning("could not allocate plugin memory\n");
 		return;
 	}
 
-	strcpy(path, home);
-	strcat(path, "/");
-	strcat(path, LOCAL_PLUGIN_DIR);
-
 	load_plugins_dir(pevent, suffix, path, load_plugin, data);
 
 	free(path);
diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c
index c94e3641b046..ca424b157e46 100644
--- a/tools/lib/traceevent/kbuffer-parse.c
+++ b/tools/lib/traceevent/kbuffer-parse.c
@@ -24,8 +24,8 @@
 
 #include "kbuffer.h"
 
-#define MISSING_EVENTS (1 << 31)
-#define MISSING_STORED (1 << 30)
+#define MISSING_EVENTS (1UL << 31)
+#define MISSING_STORED (1UL << 30)
 
 #define COMMIT_MASK ((1 << 27) - 1)
 
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index 315df0a70265..431e8b309f6e 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -287,12 +287,10 @@ find_event(struct pevent *pevent, struct event_list **events,
 		sys_name = NULL;
 	}
 
-	reg = malloc(strlen(event_name) + 3);
-	if (reg == NULL)
+	ret = asprintf(&reg, "^%s$", event_name);
+	if (ret < 0)
 		return PEVENT_ERRNO__MEM_ALLOC_FAILED;
 
-	sprintf(reg, "^%s$", event_name);
-
 	ret = regcomp(&ereg, reg, REG_ICASE|REG_NOSUB);
 	free(reg);
 
@@ -300,13 +298,12 @@ find_event(struct pevent *pevent, struct event_list **events,
 		return PEVENT_ERRNO__INVALID_EVENT_NAME;
 
 	if (sys_name) {
-		reg = malloc(strlen(sys_name) + 3);
-		if (reg == NULL) {
+		ret = asprintf(&reg, "^%s$", sys_name);
+		if (ret < 0) {
 			regfree(&ereg);
 			return PEVENT_ERRNO__MEM_ALLOC_FAILED;
 		}
 
-		sprintf(reg, "^%s$", sys_name);
 		ret = regcomp(&sreg, reg, REG_ICASE|REG_NOSUB);
 		free(reg);
 		if (ret) {
@@ -1634,6 +1631,7 @@ int pevent_filter_clear_trivial(struct event_filter *filter,
 		case FILTER_TRIVIAL_FALSE:
 			if (filter_type->filter->boolean.value)
 				continue;
+			break;
 		case FILTER_TRIVIAL_TRUE:
 			if (!filter_type->filter->boolean.value)
 				continue;
@@ -1879,17 +1877,25 @@ static const char *get_field_str(struct filter_arg *arg, struct pevent_record *r
 	struct pevent *pevent;
 	unsigned long long addr;
 	const char *val = NULL;
+	unsigned int size;
 	char hex[64];
 
 	/* If the field is not a string convert it */
 	if (arg->str.field->flags & FIELD_IS_STRING) {
 		val = record->data + arg->str.field->offset;
+		size = arg->str.field->size;
+
+		if (arg->str.field->flags & FIELD_IS_DYNAMIC) {
+			addr = *(unsigned int *)val;
+			val = record->data + (addr & 0xffff);
+			size = addr >> 16;
+		}
 
 		/*
 		 * We need to copy the data since we can't be sure the field
 		 * is null terminated.
 		 */
-		if (*(val + arg->str.field->size - 1)) {
+		if (*(val + size - 1)) {
 			/* copy it */
 			memcpy(arg->str.buffer, val, arg->str.field->size);
 			/* the buffer is already NULL terminated */