Merge tag 'perf-urgent-for-mingo' of...

Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Fixes for perf/urgent from Arnaldo Carvalho de Melo:

 * Fix fallback to --stdio when TUI not supported, from Namhyung Kim.

 * Use right cast for pointers/long in libtraceevent, from Namhyung Kim.

 * Be consistent on using the right error reporting interface for fatal errors,
   from Namhyung Kim.

 * Fix fallback to --stdio when TUI not supported, from Namhyung Kim.

 * Use the right index in asm only view in the annotate browser.
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NIngo Molnar <mingo@kernel.org>

tools/lib/traceevent/parse-filter.c

@@ -1584,7 +1584,7 @@ get_value(struct event_format *event,
 		const char *name;
 
 		name = get_comm(event, record);
-		return (unsigned long long)name;
+		return (unsigned long)name;
 	}
 
 	pevent_read_number_field(field, record->data, &val);

tools/perf/Makefile

@@ -80,7 +80,7 @@ ifeq ("$(origin DEBUG)", "command line")
   PERF_DEBUG = $(DEBUG)
 endif
 ifndef PERF_DEBUG
-  CFLAGS_OPTIMIZE = -O6
+  CFLAGS_OPTIMIZE = -O6 -D_FORTIFY_SOURCE=2
 endif
 
 ifdef PARSER_DEBUG
@@ -89,7 +89,7 @@ ifdef PARSER_DEBUG
 	PARSER_DEBUG_CFLAGS := -DPARSER_DEBUG
 endif
 
-CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS)
+CFLAGS = -fno-omit-frame-pointer -ggdb3 -Wall -Wextra -std=gnu99 $(CFLAGS_WERROR) $(CFLAGS_OPTIMIZE) $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) $(PARSER_DEBUG_CFLAGS)
 EXTLIBS = -lpthread -lrt -lelf -lm
 ALL_CFLAGS = $(CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 ALL_LDFLAGS = $(LDFLAGS)

tools/perf/builtin-annotate.c

@@ -215,7 +215,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
 	}
 
 	if (total_nr_samples == 0) {
-		ui__warning("The %s file has no samples!\n", session->filename);
+		ui__error("The %s file has no samples!\n", session->filename);
 		goto out_delete;
 	}
 out_delete:

tools/perf/builtin-record.c

@@ -264,7 +264,7 @@ static void perf_record__open(struct perf_record *rec)
 			}
 
 			if (err == ENOENT) {
-				ui__warning("The %s event is not supported.\n",
+				ui__error("The %s event is not supported.\n",
 					    event_name(pos));
 				exit(EXIT_FAILURE);
 			}
@@ -858,8 +858,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
 		usage_with_options(record_usage, record_options);
 
 	if (rec->force && rec->append_file) {
-		fprintf(stderr, "Can't overwrite and append at the same time."
-				" You need to choose between -f and -A");
+		ui__error("Can't overwrite and append at the same time."
+			  " You need to choose between -f and -A");
 		usage_with_options(record_usage, record_options);
 	} else if (rec->append_file) {
 		rec->write_mode = WRITE_APPEND;
@@ -868,8 +868,8 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
 	}
 
 	if (nr_cgroups && !rec->opts.target.system_wide) {
-		fprintf(stderr, "cgroup monitoring only available in"
-			" system-wide mode\n");
+		ui__error("cgroup monitoring only available in"
+			  " system-wide mode\n");
 		usage_with_options(record_usage, record_options);
 	}
 
@@ -905,7 +905,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
 		int saved_errno = errno;
 
 		perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
-		ui__warning("%s", errbuf);
+		ui__error("%s", errbuf);
 
 		err = -saved_errno;
 		goto out_free_fd;
@@ -933,7 +933,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __used)
 	else if (rec->opts.freq) {
 		rec->opts.default_interval = rec->opts.freq;
 	} else {
-		fprintf(stderr, "frequency and count are zero, aborting\n");
+		ui__error("frequency and count are zero, aborting\n");
 		err = -EINVAL;
 		goto out_free_fd;
 	}

tools/perf/builtin-report.c

@@ -251,13 +251,13 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
 
 	if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
 		if (sort__has_parent) {
-			ui__warning("Selected --sort parent, but no "
+			ui__error("Selected --sort parent, but no "
 				    "callchain data. Did you call "
 				    "'perf record' without -g?\n");
 			return -EINVAL;
 		}
 		if (symbol_conf.use_callchain) {
-			ui__warning("Selected -g but no callchain data. Did "
+			ui__error("Selected -g but no callchain data. Did "
 				    "you call 'perf record' without -g?\n");
 			return -1;
 		}
@@ -266,17 +266,15 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
 		   !symbol_conf.use_callchain) {
 			symbol_conf.use_callchain = true;
 			if (callchain_register_param(&callchain_param) < 0) {
-				ui__warning("Can't register callchain "
-					    "params.\n");
+				ui__error("Can't register callchain params.\n");
 				return -EINVAL;
 			}
 	}
 
 	if (sort__branch_mode == 1) {
 		if (!(self->sample_type & PERF_SAMPLE_BRANCH_STACK)) {
-			fprintf(stderr, "selected -b but no branch data."
-					" Did you call perf record without"
-					" -b?\n");
+			ui__error("Selected -b but no branch data. "
+				  "Did you call perf record without -b?\n");
 			return -1;
 		}
 	}
@@ -420,7 +418,7 @@ static int __cmd_report(struct perf_report *rep)
 	}
 
 	if (nr_samples == 0) {
-		ui__warning("The %s file has no samples!\n", session->filename);
+		ui__error("The %s file has no samples!\n", session->filename);
 		goto out_delete;
 	}
 

tools/perf/builtin-top.c

@@ -953,22 +953,22 @@ static void perf_top__start_counters(struct perf_top *top)
 				attr->config = PERF_COUNT_SW_CPU_CLOCK;
 				if (counter->name) {
 					free(counter->name);
-					counter->name = strdup(event_name(counter));
+					counter->name = NULL;
 				}
 				goto try_again;
 			}
 
 			if (err == ENOENT) {
-				ui__warning("The %s event is not supported.\n",
+				ui__error("The %s event is not supported.\n",
 					    event_name(counter));
 				goto out_err;
 			} else if (err == EMFILE) {
-				ui__warning("Too many events are opened.\n"
+				ui__error("Too many events are opened.\n"
 					    "Try again after reducing the number of events\n");
 				goto out_err;
 			}
 
-			ui__warning("The sys_perf_event_open() syscall "
+			ui__error("The sys_perf_event_open() syscall "
 				    "returned with %d (%s).  /bin/dmesg "
 				    "may provide additional information.\n"
 				    "No CONFIG_PERF_EVENTS=y kernel support "
@@ -978,7 +978,7 @@ static void perf_top__start_counters(struct perf_top *top)
 	}
 
 	if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) {
-		ui__warning("Failed to mmap with %d (%s)\n",
+		ui__error("Failed to mmap with %d (%s)\n",
 			    errno, strerror(errno));
 		goto out_err;
 	}
@@ -994,12 +994,12 @@ static int perf_top__setup_sample_type(struct perf_top *top)
 {
 	if (!top->sort_has_symbols) {
 		if (symbol_conf.use_callchain) {
-			ui__warning("Selected -g but \"sym\" not present in --sort/-s.");
+			ui__error("Selected -g but \"sym\" not present in --sort/-s.");
 			return -EINVAL;
 		}
 	} else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) {
 		if (callchain_register_param(&callchain_param) < 0) {
-			ui__warning("Can't register callchain params.\n");
+			ui__error("Can't register callchain params.\n");
 			return -EINVAL;
 		}
 	}
@@ -1041,7 +1041,7 @@ static int __cmd_top(struct perf_top *top)
 
 	if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
 							    display_thread), top)) {
-		printf("Could not create display thread.\n");
+		ui__error("Could not create display thread.\n");
 		exit(-1);
 	}
 
@@ -1050,7 +1050,7 @@ static int __cmd_top(struct perf_top *top)
 
 		param.sched_priority = top->realtime_prio;
 		if (sched_setscheduler(0, SCHED_FIFO, &param)) {
-			printf("Could not set realtime priority.\n");
+			ui__error("Could not set realtime priority.\n");
 			exit(-1);
 		}
 	}
@@ -1274,7 +1274,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
 		int saved_errno = errno;
 
 		perf_target__strerror(&top.target, status, errbuf, BUFSIZ);
-		ui__warning("%s", errbuf);
+		ui__error("%s", errbuf);
 
 		status = -saved_errno;
 		goto out_delete_evlist;
@@ -1288,7 +1288,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
 
 	if (!top.evlist->nr_entries &&
 	    perf_evlist__add_default(top.evlist) < 0) {
-		pr_err("Not enough memory for event selector list\n");
+		ui__error("Not enough memory for event selector list\n");
 		return -ENOMEM;
 	}
 
@@ -1305,7 +1305,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
 	else if (top.freq) {
 		top.default_interval = top.freq;
 	} else {
-		fprintf(stderr, "frequency and count are zero, aborting\n");
+		ui__error("frequency and count are zero, aborting\n");
 		exit(EXIT_FAILURE);
 	}
 

tools/perf/perf.h

@@ -227,7 +227,7 @@ struct perf_record_opts {
 	unsigned int freq;
 	unsigned int mmap_pages;
 	unsigned int user_freq;
-	int	     branch_stack;
+	u64          branch_stack;
 	u64	     default_interval;
 	u64	     user_interval;
 };

tools/perf/ui/browsers/annotate.c

@@ -300,10 +300,14 @@ static void annotate_browser__set_rb_top(struct annotate_browser *browser,
 {
 	struct browser_disasm_line *bpos;
 	struct disasm_line *pos;
+	u32 idx;
 
 	bpos = rb_entry(nd, struct browser_disasm_line, rb_node);
 	pos = ((struct disasm_line *)bpos) - 1;
-	annotate_browser__set_top(browser, pos, bpos->idx);
+	idx = bpos->idx;
+	if (browser->hide_src_code)
+		idx = bpos->idx_asm;
+	annotate_browser__set_top(browser, pos, idx);
 	browser->curr_hot = nd;
 }
 

tools/perf/ui/setup.c

@@ -22,6 +22,7 @@ void setup_browser(bool fallback_to_pager)
 			break;
 		/* fall through */
 	default:
+		use_browser = 0;
 		if (fallback_to_pager)
 			setup_pager();
 		break;

tools/perf/util/evsel.c

@@ -15,6 +15,7 @@
 #include "cpumap.h"
 #include "thread_map.h"
 #include "target.h"
+#include "../../include/linux/perf_event.h"
 
 #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
 #define GROUP_FD(group_fd, cpu) (*(int *)xyarray__entry(group_fd, cpu, 0))
@@ -64,6 +65,95 @@ struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx)
 	return evsel;
 }
 
+static const char *perf_evsel__hw_names[PERF_COUNT_HW_MAX] = {
+	"cycles",
+	"instructions",
+	"cache-references",
+	"cache-misses",
+	"branches",
+	"branch-misses",
+	"bus-cycles",
+	"stalled-cycles-frontend",
+	"stalled-cycles-backend",
+	"ref-cycles",
+};
+
+const char *__perf_evsel__hw_name(u64 config)
+{
+	if (config < PERF_COUNT_HW_MAX && perf_evsel__hw_names[config])
+		return perf_evsel__hw_names[config];
+
+	return "unknown-hardware";
+}
+
+static int perf_evsel__hw_name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+	int colon = 0;
+	struct perf_event_attr *attr = &evsel->attr;
+	int r = scnprintf(bf, size, "%s", __perf_evsel__hw_name(attr->config));
+	bool exclude_guest_default = false;
+
+#define MOD_PRINT(context, mod)	do {					\
+		if (!attr->exclude_##context) {				\
+			if (!colon) colon = r++;			\
+			r += scnprintf(bf + r, size - r, "%c", mod);	\
+		} } while(0)
+
+	if (attr->exclude_kernel || attr->exclude_user || attr->exclude_hv) {
+		MOD_PRINT(kernel, 'k');
+		MOD_PRINT(user, 'u');
+		MOD_PRINT(hv, 'h');
+		exclude_guest_default = true;
+	}
+
+	if (attr->precise_ip) {
+		if (!colon)
+			colon = r++;
+		r += scnprintf(bf + r, size - r, "%.*s", attr->precise_ip, "ppp");
+		exclude_guest_default = true;
+	}
+
+	if (attr->exclude_host || attr->exclude_guest == exclude_guest_default) {
+		MOD_PRINT(host, 'H');
+		MOD_PRINT(guest, 'G');
+	}
+#undef MOD_PRINT
+	if (colon)
+		bf[colon] = ':';
+	return r;
+}
+
+int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size)
+{
+	int ret;
+
+	switch (evsel->attr.type) {
+	case PERF_TYPE_RAW:
+		ret = scnprintf(bf, size, "raw 0x%" PRIx64, evsel->attr.config);
+		break;
+
+	case PERF_TYPE_HARDWARE:
+		ret = perf_evsel__hw_name(evsel, bf, size);
+		break;
+	default:
+		/*
+		 * FIXME
+ 		 *
+		 * This is the minimal perf_evsel__name so that we can
+		 * reconstruct event names taking into account event modifiers.
+		 *
+		 * The old event_name uses it now for raw anr hw events, so that
+		 * we don't drag all the parsing stuff into the python binding.
+		 *
+		 * On the next devel cycle the rest of the event naming will be
+		 * brought here.
+ 		 */
+		return 0;
+	}
+
+	return ret;
+}
+
 void perf_evsel__config(struct perf_evsel *evsel, struct perf_record_opts *opts,
 			struct perf_evsel *first)
 {

tools/perf/util/evsel.h

@@ -83,6 +83,9 @@ void perf_evsel__config(struct perf_evsel *evsel,
 			struct perf_record_opts *opts,
 			struct perf_evsel *first);
 
+const char* __perf_evsel__hw_name(u64 config);
+int perf_evsel__name(struct perf_evsel *evsel, char *bf, size_t size);
+
 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus);

tools/perf/util/parse-events.c

@@ -62,19 +62,6 @@ static struct event_symbol event_symbols[] = {
 #define PERF_EVENT_TYPE(config)		__PERF_EVENT_FIELD(config, TYPE)
 #define PERF_EVENT_ID(config)		__PERF_EVENT_FIELD(config, EVENT)
 
-static const char *hw_event_names[PERF_COUNT_HW_MAX] = {
-	"cycles",
-	"instructions",
-	"cache-references",
-	"cache-misses",
-	"branches",
-	"branch-misses",
-	"bus-cycles",
-	"stalled-cycles-frontend",
-	"stalled-cycles-backend",
-	"ref-cycles",
-};
-
 static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
 	"cpu-clock",
 	"task-clock",
@@ -300,6 +287,16 @@ const char *event_name(struct perf_evsel *evsel)
 	u64 config = evsel->attr.config;
 	int type = evsel->attr.type;
 
+	if (type == PERF_TYPE_RAW || type == PERF_TYPE_HARDWARE) {
+		/*
+ 		 * XXX minimal fix, see comment on perf_evsen__name, this static buffer
+ 		 * will go away together with event_name in the next devel cycle.
+ 		 */
+		static char bf[128];
+		perf_evsel__name(evsel, bf, sizeof(bf));
+		return bf;
+	}
+
 	if (evsel->name)
 		return evsel->name;
 
@@ -317,9 +314,7 @@ const char *__event_name(int type, u64 config)
 
 	switch (type) {
 	case PERF_TYPE_HARDWARE:
-		if (config < PERF_COUNT_HW_MAX && hw_event_names[config])
-			return hw_event_names[config];
-		return "unknown-hardware";
+		return __perf_evsel__hw_name(config);
 
 	case PERF_TYPE_HW_CACHE: {
 		u8 cache_type, cache_op, cache_result;

tools/perf/util/thread_map.c

@@ -188,28 +188,27 @@ static struct thread_map *thread_map__new_by_pid_str(const char *pid_str)
 		nt = realloc(threads, (sizeof(*threads) +
 				       sizeof(pid_t) * total_tasks));
 		if (nt == NULL)
-			goto out_free_threads;
+			goto out_free_namelist;
 
 		threads = nt;
 
-		if (threads) {
-			for (i = 0; i < items; i++)
-				threads->map[j++] = atoi(namelist[i]->d_name);
-			threads->nr = total_tasks;
-		}
-
-		for (i = 0; i < items; i++)
+		for (i = 0; i < items; i++) {
+			threads->map[j++] = atoi(namelist[i]->d_name);
 			free(namelist[i]);
+		}
+		threads->nr = total_tasks;
 		free(namelist);
-
-		if (!threads)
-			break;
 	}
 
 out:
 	strlist__delete(slist);
 	return threads;
 
+out_free_namelist:
+	for (i = 0; i < items; i++)
+		free(namelist[i]);
+	free(namelist);
+
 out_free_threads:
 	free(threads);
 	threads = NULL;