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

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

* Don't show scripts menu for 'perf top', fix from Feng Tang

* Add framework for automated perf_event_attr tests, where tools with
different command line options will be run from a 'perf test', via
python glue, and the perf syscall will be intercepted to verify that
the perf_event_attr fields set by the tool are those expected,
from Jiri Olsa

* Use normalized arch name for searching objdump path. This fixes cases
where the system's objdump (e.g. x86_64) supports the architecture in
the perf.data file (e.g. i686), but is not the same,
fix from Namhyung Kim.

* Postpone objdump check until annotation requested, from Namhyung Kim.

* Add a 'link' method for hists, so that we can have the leader with
buckets for all the entries in all the hists. This new method
is now used in the default 'diff' output, making the sum of the 'baseline'
column be 100%, eliminating blind spots. Now we need to use this
for 'diff' with > 2 perf.data files and for multi event 'report' and
'annotate'.

* libtraceevent fixes for compiler warnings trying to make perf it build
on some distros, like fedora 14, 32-bit, some of the warnings really
pointed to real bugs.

* Remove temp dir on failure in 'perf test', fix from Jiri Olsa.

* Fixes for handling data, stack mmaps, from Namhyung Kim.

* Fix live annotation bug related to recent objdump lookup patches, from
Namhyung Kim

* Don't try to follow jump target on PLT symbols in the annotation browser,
fix from Namhyung Kim.

* Fix leak on hist_entry delete, from Namhyung Kim.

* Fix a CPU_ALLOC related build error on builtin-test, from Zheng Liu.

Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>
Signed-off-by: Ingo Molnar <[e-mail]>

tools/lib/traceevent/event-parse.c

···
 	return 0;
 }
 
-static char *find_cmdline(struct pevent *pevent, int pid)
+static const char *find_cmdline(struct pevent *pevent, int pid)
 {
 	const struct cmdline *comm;
 	struct cmdline key;
···
 	struct print_arg *farg;
 	enum event_type type;
 	char *token;
-	char *test;
+	const char *test;
 	int i;
 
 	arg->type = PRINT_FUNC;
···
 			  struct event_format *event, struct print_arg *arg)
 {
 	unsigned char *buf;
-	char *fmt = "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x";
+	const char *fmt = "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x";
 
 	if (arg->type == PRINT_FUNC) {
 		process_defined_func(s, data, size, event, arg);
···
 	return 1;
 }
 
-static void print_event_fields(struct trace_seq *s, void *data, int size,
+static void print_event_fields(struct trace_seq *s, void *data,
+			       int size __maybe_unused,
 			       struct event_format *event)
 {
 	struct format_field *field;
···
 void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
 			struct pevent_record *record)
 {
-	static char *spaces = "                    "; /* 20 spaces */
+	static const char *spaces = "                    "; /* 20 spaces */
 	struct event_format *event;
 	unsigned long secs;
 	unsigned long usecs;
···
 };
 #undef _PE
 
-int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
-		    char *buf, size_t buflen)
+int pevent_strerror(struct pevent *pevent __maybe_unused,
+		    enum pevent_errno errnum, char *buf, size_t buflen)
 {
 	int idx;
 	const char *msg;
···
 	case PEVENT_ERRNO__READ_FORMAT_FAILED:
 	case PEVENT_ERRNO__READ_PRINT_FAILED:
 	case PEVENT_ERRNO__OLD_FTRACE_ARG_FAILED:
+	case PEVENT_ERRNO__INVALID_ARG_TYPE:
 		snprintf(buf, buflen, "%s", msg);
 		break;
 
···
 		if (type == PEVENT_FUNC_ARG_VOID)
 			break;
 
-		if (type < 0 || type >= PEVENT_FUNC_ARG_MAX_TYPES) {
+		if (type >= PEVENT_FUNC_ARG_MAX_TYPES) {
 			do_warning("Invalid argument type %d", type);
 			ret = PEVENT_ERRNO__INVALID_ARG_TYPE;
 			goto out_free;
···
 	}
 
 	if (pevent->func_map) {
-		for (i = 0; i < pevent->func_count; i++) {
+		for (i = 0; i < (int)pevent->func_count; i++) {
 			free(pevent->func_map[i].func);
 			free(pevent->func_map[i].mod);
 		}
···
 	}
 
 	if (pevent->printk_map) {
-		for (i = 0; i < pevent->printk_count; i++)
+		for (i = 0; i < (int)pevent->printk_count; i++)
 			free(pevent->printk_map[i].printk);
 		free(pevent->printk_map);
 	}

tools/perf/Documentation/android.txt

···
 II. Compile perf for Android
 ------------------------------------------------
 You need to run make with the NDK toolchain and sysroot defined above:
-  make CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
+For arm:
+  make ARCH=arm CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
+For x86:
+  make ARCH=x86 CROSS_COMPILE=${NDK_TOOLCHAIN} CFLAGS="--sysroot=${NDK_SYSROOT}"
 
 III. Install perf
 -----------------------------------------------

tools/perf/Makefile

···
 
 ### --- END CONFIGURATION SECTION ---
 
-BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include -I$(OUTPUT)util -I$(TRACE_EVENT_DIR) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
+BASIC_CFLAGS = -Iutil/include -Iarch/$(ARCH)/include -I$(OUTPUT)util -Iutil -I. -I$(TRACE_EVENT_DIR) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 BASIC_LDFLAGS =
 
 ifeq ($(call try-cc,$(SOURCE_BIONIC),$(CFLAGS),bionic),y)
···
 LIB_OBJS += $(OUTPUT)util/levenshtein.o
 LIB_OBJS += $(OUTPUT)util/parse-options.o
 LIB_OBJS += $(OUTPUT)util/parse-events.o
-LIB_OBJS += $(OUTPUT)util/parse-events-test.o
 LIB_OBJS += $(OUTPUT)util/path.o
 LIB_OBJS += $(OUTPUT)util/rbtree.o
 LIB_OBJS += $(OUTPUT)util/bitmap.o
···
 LIB_OBJS += $(OUTPUT)util/dso.o
 LIB_OBJS += $(OUTPUT)util/symbol.o
 LIB_OBJS += $(OUTPUT)util/symbol-elf.o
-LIB_OBJS += $(OUTPUT)util/dso-test-data.o
 LIB_OBJS += $(OUTPUT)util/color.o
 LIB_OBJS += $(OUTPUT)util/pager.o
 LIB_OBJS += $(OUTPUT)util/header.o
···
 
 LIB_OBJS += $(OUTPUT)arch/common.o
 
+LIB_OBJS += $(OUTPUT)tests/parse-events.o
+LIB_OBJS += $(OUTPUT)tests/dso-data.o
+LIB_OBJS += $(OUTPUT)tests/attr.o
+
 BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
 BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
 # Benchmark modules
···
 BUILTIN_OBJS += $(OUTPUT)builtin-kmem.o
 BUILTIN_OBJS += $(OUTPUT)builtin-lock.o
 BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o
-BUILTIN_OBJS += $(OUTPUT)builtin-test.o
 BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
+BUILTIN_OBJS += $(OUTPUT)tests/builtin-test.o
 
 PERFLIBS = $(LIB_FILE) $(LIBTRACEEVENT)
 
···
 		LIBC_SUPPORT := 1
 	endif
 	ifeq ($(LIBC_SUPPORT),1)
+		msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
+
 		NO_LIBELF := 1
 		NO_DWARF := 1
 		NO_DEMANGLE := 1
···
 		msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
 	endif
 else
-	FLAGS_DWARF=$(ALL_CFLAGS) -ldw -lelf $(ALL_LDFLAGS) $(EXTLIBS)
+	# for linking with debug library, run like:
+	# make DEBUG=1 LIBDW_DIR=/opt/libdw/
+	ifdef LIBDW_DIR
+		LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
+		LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
+	endif
+
+	FLAGS_DWARF=$(ALL_CFLAGS) $(LIBDW_CFLAGS) -ldw -lelf $(LIBDW_LDFLAGS) $(ALL_LDFLAGS) $(EXTLIBS)
 	ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
 		msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
 		NO_DWARF := 1
···
 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
 	msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
 else
-	BASIC_CFLAGS += -DDWARF_SUPPORT
+	BASIC_CFLAGS := -DDWARF_SUPPORT $(LIBDW_CFLAGS) $(BASIC_CFLAGS)
+	BASIC_LDFLAGS := $(LIBDW_LDFLAGS) $(BASIC_LDFLAGS)
 	EXTLIBS += -lelf -ldw
 	LIB_OBJS += $(OUTPUT)util/probe-finder.o
 	LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
···
 $(OUTPUT)util/exec_cmd.o: util/exec_cmd.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
 		'-DPERF_EXEC_PATH="$(perfexecdir_SQ)"' \
-		'-DBINDIR="$(bindir_relative_SQ)"' \
 		'-DPREFIX="$(prefix_SQ)"' \
+		$<
+
+$(OUTPUT)tests/attr.o: tests/attr.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) \
+		'-DBINDIR="$(bindir_SQ)"' \
 		$<
 
 $(OUTPUT)util/config.o: util/config.c $(OUTPUT)PERF-CFLAGS
···
 	$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'
 	$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
+	$(INSTALL) tests/attr.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
+	$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
 
 install-python_ext:
 	$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'

tools/perf/arch/common.c

···
 	return -1;
 }
 
+/*
+ * Return architecture name in a normalized form.
+ * The conversion logic comes from the Makefile.
+ */
+static const char *normalize_arch(char *arch)
+{
+	if (!strcmp(arch, "x86_64"))
+		return "x86";
+	if (arch[0] == 'i' && arch[2] == '8' && arch[3] == '6')
+		return "x86";
+	if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5))
+		return "sparc";
+	if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110"))
+		return "arm";
+	if (!strncmp(arch, "s390", 4))
+		return "s390";
+	if (!strncmp(arch, "parisc", 6))
+		return "parisc";
+	if (!strncmp(arch, "powerpc", 7) || !strncmp(arch, "ppc", 3))
+		return "powerpc";
+	if (!strncmp(arch, "mips", 4))
+		return "mips";
+	if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
+		return "sh";
+
+	return arch;
+}
+
 static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
 						  const char *name,
 						  const char **path)
 {
 	int idx;
-	char *arch, *cross_env;
+	const char *arch, *cross_env;
 	struct utsname uts;
 	const char *const *path_list;
 	char *buf = NULL;
+
+	arch = normalize_arch(env->arch);
 
 	if (uname(&uts) < 0)
 		goto out;
···
 	 * We don't need to try to find objdump path for native system.
 	 * Just use default binutils path (e.g.: "objdump").
 	 */
-	if (!strcmp(uts.machine, env->arch))
+	if (!strcmp(normalize_arch(uts.machine), arch))
 		goto out;
 
 	cross_env = getenv("CROSS_COMPILE");
···
 		free(buf);
 	}
 
-	arch = env->arch;
-
 	if (!strcmp(arch, "arm"))
 		path_list = arm_triplets;
 	else if (!strcmp(arch, "powerpc"))
···
 		path_list = s390_triplets;
 	else if (!strcmp(arch, "sparc"))
 		path_list = sparc_triplets;
-	else if (!strcmp(arch, "x86") || !strcmp(arch, "i386") ||
-		 !strcmp(arch, "i486") || !strcmp(arch, "i586") ||
-		 !strcmp(arch, "i686"))
+	else if (!strcmp(arch, "x86"))
 		path_list = x86_triplets;
 	else if (!strcmp(arch, "mips"))
 		path_list = mips_triplets;
···
 
 int perf_session_env__lookup_objdump(struct perf_session_env *env)
 {
+	/*
+	 * For live mode, env->arch will be NULL and we can use
+	 * the native objdump tool.
+	 */
+	if (env->arch == NULL)
+		return 0;
+
 	return perf_session_env__lookup_binutils_path(env, "objdump",
 						      &objdump_path);
 }

tools/perf/builtin-annotate.c

···
 		}
 
 		if (use_browser > 0) {
-			key = hist_entry__tui_annotate(he, evidx, NULL, NULL, 0);
+			key = hist_entry__tui_annotate(he, evidx, NULL);
 			switch (key) {
 			case K_RIGHT:
 				next = rb_next(nd);

tools/perf/builtin-diff.c

···
 
 double perf_diff__compute_delta(struct hist_entry *he)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	double new_percent = get_period_percent(he, he->stat.period);
 	double old_percent = pair ? get_period_percent(pair, pair->stat.period) : 0.0;
 
···
 
 double perf_diff__compute_ratio(struct hist_entry *he)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	double new_period = he->stat.period;
 	double old_period = pair ? pair->stat.period : 0;
 
···
 
 s64 perf_diff__compute_wdiff(struct hist_entry *he)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	u64 new_period = he->stat.period;
 	u64 old_period = pair ? pair->stat.period : 0;
 
···
 
 static int formula_delta(struct hist_entry *he, char *buf, size_t size)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 
 	if (!pair)
 		return -1;
···
 
 static int formula_ratio(struct hist_entry *he, char *buf, size_t size)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	double new_period = he->stat.period;
 	double old_period = pair ? pair->stat.period : 0;
 
···
 
 static int formula_wdiff(struct hist_entry *he, char *buf, size_t size)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	u64 new_period = he->stat.period;
 	u64 old_period = pair ? pair->stat.period : 0;
 
···
 		self->entries = tmp;
 }
 
-static struct hist_entry *hists__find_entry(struct hists *self,
-					    struct hist_entry *he)
-{
-	struct rb_node *n = self->entries.rb_node;
-
-	while (n) {
-		struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node);
-		int64_t cmp = hist_entry__cmp(he, iter);
-
-		if (cmp < 0)
-			n = n->rb_left;
-		else if (cmp > 0)
-			n = n->rb_right;
-		else
-			return iter;
-	}
-
-	return NULL;
-}
-
-static void hists__match(struct hists *older, struct hists *newer)
-{
-	struct rb_node *nd;
-
-	for (nd = rb_first(&newer->entries); nd; nd = rb_next(nd)) {
-		struct hist_entry *pos = rb_entry(nd, struct hist_entry, rb_node);
-		pos->pair = hists__find_entry(older, pos);
-	}
-}
-
 static struct perf_evsel *evsel_match(struct perf_evsel *evsel,
 				      struct perf_evlist *evlist)
 {
···
 		struct hist_entry *he = rb_entry(next, struct hist_entry, rb_node);
 
 		next = rb_next(&he->rb_node);
-		if (!he->pair) {
+		if (!hist_entry__next_pair(he)) {
 			rb_erase(&he->rb_node, &hists->entries);
 			hist_entry__free(he);
 		}
···
 
 static void hists__process(struct hists *old, struct hists *new)
 {
-	hists__match(old, new);
+	hists__match(new, old);
 
 	if (show_baseline_only)
 		hists__baseline_only(new);
+	else
+		hists__link(new, old);
 
 	if (sort_compute) {
 		hists__precompute(new);

tools/perf/builtin-report.c

···
 	if (use_browser > 0) {
 		if (use_browser == 1) {
 			perf_evlist__tui_browse_hists(session->evlist, help,
-						      NULL, NULL, 0);
+						      NULL,
+						      &session->header.env);
 		} else if (use_browser == 2) {
 			perf_evlist__gtk_browse_hists(session->evlist, help,
-						      NULL, NULL, 0);
+						      NULL);
 		}
 	} else
 		perf_evlist__tty_browse_hists(session->evlist, rep, help);
···
 
 	has_br_stack = perf_header__has_feat(&session->header,
 					     HEADER_BRANCH_STACK);
-
-	if (!objdump_path) {
-		ret = perf_session_env__lookup_objdump(&session->header.env);
-		if (ret)
-			goto error;
-	}
 
 	if (sort__branch_mode == -1 && has_br_stack)
 		sort__branch_mode = 1;

tools/perf/builtin-test.c tools/perf/tests/builtin-test.c

···
 #include "util/debug.h"
 #include "util/debugfs.h"
 #include "util/evlist.h"
+#include "util/machine.h"
 #include "util/parse-options.h"
 #include "util/parse-events.h"
 #include "util/symbol.h"
···
 			 nr_open_calls, evsel->counts->cpu[0].val);
 		goto out_close_fd;
 	}
-	
+
 	err = 0;
 out_close_fd:
 	perf_evsel__close_fd(evsel, 1, threads->nr);
···
 #undef nsyscalls
 }
 
-static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t **maskp,
-					 size_t *sizep)
+static int sched__get_first_possible_cpu(pid_t pid, cpu_set_t *maskp)
 {
-	cpu_set_t *mask;
-	size_t size;
 	int i, cpu = -1, nrcpus = 1024;
 realloc:
-	mask = CPU_ALLOC(nrcpus);
-	size = CPU_ALLOC_SIZE(nrcpus);
-	CPU_ZERO_S(size, mask);
+	CPU_ZERO(maskp);
 
-	if (sched_getaffinity(pid, size, mask) == -1) {
-		CPU_FREE(mask);
+	if (sched_getaffinity(pid, sizeof(*maskp), maskp) == -1) {
 		if (errno == EINVAL && nrcpus < (1024 << 8)) {
 			nrcpus = nrcpus << 2;
 			goto realloc;
···
 	}
 
 	for (i = 0; i < nrcpus; i++) {
-		if (CPU_ISSET_S(i, size, mask)) {
-			if (cpu == -1) {
+		if (CPU_ISSET(i, maskp)) {
+			if (cpu == -1)
 				cpu = i;
-				*maskp = mask;
-				*sizep = size;
-			} else
-				CPU_CLR_S(i, size, mask);
+			else
+				CPU_CLR(i, maskp);
 		}
 	}
-
-	if (cpu == -1)
-		CPU_FREE(mask);
 
 	return cpu;
 }
···
 		.freq	    = 10,
 		.mmap_pages = 256,
 	};
-	cpu_set_t *cpu_mask = NULL;
-	size_t cpu_mask_size = 0;
+	cpu_set_t cpu_mask;
+	size_t cpu_mask_size = sizeof(cpu_mask);
 	struct perf_evlist *evlist = perf_evlist__new(NULL, NULL);
 	struct perf_evsel *evsel;
 	struct perf_sample sample;
···
 	evsel->attr.sample_type |= PERF_SAMPLE_TIME;
 	perf_evlist__config_attrs(evlist, &opts);
 
-	err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask,
-					    &cpu_mask_size);
+	err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask);
 	if (err < 0) {
 		pr_debug("sched__get_first_possible_cpu: %s\n", strerror(errno));
 		goto out_delete_evlist;
···
 	/*
 	 * So that we can check perf_sample.cpu on all the samples.
 	 */
-	if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, cpu_mask) < 0) {
+	if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, &cpu_mask) < 0) {
 		pr_debug("sched_setaffinity: %s\n", strerror(errno));
-		goto out_free_cpu_mask;
+		goto out_delete_evlist;
 	}
 
 	/*
···
 	}
 out_err:
 	perf_evlist__munmap(evlist);
-out_free_cpu_mask:
-	CPU_FREE(cpu_mask);
 out_delete_evlist:
 	perf_evlist__delete(evlist);
 out:
···
 	perf_evlist__enable(evlist);
 
 	/*
- 	 * Generate the event:
- 	 */
+	 * Generate the event:
+	 */
 	open(filename, flags);
 
 	while (1) {
···
 		.func = test__syscall_open_tp_fields,
 	},
 	{
+		.desc = "struct perf_event_attr setup",
+		.func = test_attr__run,
+	},
+	{
 		.func = NULL,
 	},
 };
···
 			width = len;
 		++i;
 	}
-		
+
 	i = 0;
 	while (tests[i].func) {
 		int curr = i++, err;

tools/perf/builtin-top.c

···
 	struct perf_evsel *pos;
 	struct perf_top *top = arg;
 	const char *help = "For a higher level overview, try: perf top --sort comm,dso";
+	struct hist_browser_timer hbt = {
+		.timer		= perf_top__sort_new_samples,
+		.arg		= top,
+		.refresh	= top->delay_secs,
+	};
 
 	perf_top__sort_new_samples(top);
 
···
 	list_for_each_entry(pos, &top->evlist->entries, node)
 		pos->hists.uid_filter_str = top->target.uid_str;
 
-	perf_evlist__tui_browse_hists(top->evlist, help,
-				      perf_top__sort_new_samples,
-				      top, top->delay_secs);
+	perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
+				      &top->session->header.env);
 
 	exit_browser(0);
 	exit(0);

tools/perf/perf.c

···
 	}
 	cmd = argv[0];
 
+	test_attr__init();
+
 	/*
 	 * We use PATH to find perf commands, but we prepend some higher
 	 * precedence paths: the "--exec-path" option, the PERF_EXEC_PATH

tools/perf/perf.h

···
 	(void) (&_min1 == &_min2);		\
 	_min1 < _min2 ? _min1 : _min2; })
 
+extern bool test_attr__enabled;
+void test_attr__init(void);
+void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
+		     int fd, int group_fd, unsigned long flags);
+int  test_attr__run(void);
+
 static inline int
 sys_perf_event_open(struct perf_event_attr *attr,
 		      pid_t pid, int cpu, int group_fd,
 		      unsigned long flags)
 {
-	return syscall(__NR_perf_event_open, attr, pid, cpu,
-		       group_fd, flags);
+	int fd;
+
+	fd = syscall(__NR_perf_event_open, attr, pid, cpu,
+		     group_fd, flags);
+
+	if (unlikely(test_attr__enabled))
+		test_attr__open(attr, pid, cpu, fd, group_fd, flags);
+
+	return fd;
 }
 
 #define MAX_COUNTERS			256

tools/perf/tests/attr.c

···
+
+/*
+ * The struct perf_event_attr test support.
+ *
+ * This test is embedded inside into perf directly and is governed
+ * by the PERF_TEST_ATTR environment variable and hook inside
+ * sys_perf_event_open function.
+ *
+ * The general idea is to store 'struct perf_event_attr' details for
+ * each event created within single perf command. Each event details
+ * are stored into separate text file. Once perf command is finished
+ * these files can be checked for values we expect for command.
+ *
+ * Besides 'struct perf_event_attr' values we also store 'fd' and
+ * 'group_fd' values to allow checking for groups created.
+ *
+ * This all is triggered by setting PERF_TEST_ATTR environment variable.
+ * It must contain name of existing directory with access and write
+ * permissions. All the event text files are stored there.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include "../perf.h"
+#include "util.h"
+#include "exec_cmd.h"
+
+#define ENV "PERF_TEST_ATTR"
+
+extern int verbose;
+
+bool test_attr__enabled;
+
+static char *dir;
+
+void test_attr__init(void)
+{
+	dir = getenv(ENV);
+	test_attr__enabled = (dir != NULL);
+}
+
+#define BUFSIZE 1024
+
+#define __WRITE_ASS(str, fmt, data)					\
+do {									\
+	char buf[BUFSIZE];						\
+	size_t size;							\
+									\
+	size = snprintf(buf, BUFSIZE, #str "=%"fmt "\n", data);		\
+	if (1 != fwrite(buf, size, 1, file)) {				\
+		perror("test attr - failed to write event file");	\
+		fclose(file);						\
+		return -1;						\
+	}								\
+									\
+} while (0)
+
+#define WRITE_ASS(field, fmt) __WRITE_ASS(field, fmt, attr->field)
+
+static int store_event(struct perf_event_attr *attr, pid_t pid, int cpu,
+		       int fd, int group_fd, unsigned long flags)
+{
+	FILE *file;
+	char path[PATH_MAX];
+
+	snprintf(path, PATH_MAX, "%s/event-%d-%llu-%d", dir,
+		 attr->type, attr->config, fd);
+
+	file = fopen(path, "w+");
+	if (!file) {
+		perror("test attr - failed to open event file");
+		return -1;
+	}
+
+	if (fprintf(file, "[event-%d-%llu-%d]\n",
+		    attr->type, attr->config, fd) < 0) {
+		perror("test attr - failed to write event file");
+		fclose(file);
+		return -1;
+	}
+
+	/* syscall arguments */
+	__WRITE_ASS(fd,       "d", fd);
+	__WRITE_ASS(group_fd, "d", group_fd);
+	__WRITE_ASS(cpu,      "d", cpu);
+	__WRITE_ASS(pid,      "d", pid);
+	__WRITE_ASS(flags,   "lu", flags);
+
+	/* struct perf_event_attr */
+	WRITE_ASS(type,   PRIu32);
+	WRITE_ASS(size,   PRIu32);
+	WRITE_ASS(config,  "llu");
+	WRITE_ASS(sample_period, "llu");
+	WRITE_ASS(sample_type,   "llu");
+	WRITE_ASS(read_format,   "llu");
+	WRITE_ASS(disabled,       "d");
+	WRITE_ASS(inherit,        "d");
+	WRITE_ASS(pinned,         "d");
+	WRITE_ASS(exclusive,      "d");
+	WRITE_ASS(exclude_user,   "d");
+	WRITE_ASS(exclude_kernel, "d");
+	WRITE_ASS(exclude_hv,     "d");
+	WRITE_ASS(exclude_idle,   "d");
+	WRITE_ASS(mmap,           "d");
+	WRITE_ASS(comm,           "d");
+	WRITE_ASS(freq,           "d");
+	WRITE_ASS(inherit_stat,   "d");
+	WRITE_ASS(enable_on_exec, "d");
+	WRITE_ASS(task,           "d");
+	WRITE_ASS(watermark,      "d");
+	WRITE_ASS(precise_ip,     "d");
+	WRITE_ASS(mmap_data,      "d");
+	WRITE_ASS(sample_id_all,  "d");
+	WRITE_ASS(exclude_host,   "d");
+	WRITE_ASS(exclude_guest,  "d");
+	WRITE_ASS(exclude_callchain_kernel, "d");
+	WRITE_ASS(exclude_callchain_user, "d");
+	WRITE_ASS(wakeup_events, PRIu32);
+	WRITE_ASS(bp_type, PRIu32);
+	WRITE_ASS(config1, "llu");
+	WRITE_ASS(config2, "llu");
+	WRITE_ASS(branch_sample_type, "llu");
+	WRITE_ASS(sample_regs_user,   "llu");
+	WRITE_ASS(sample_stack_user,  PRIu32);
+
+	fclose(file);
+	return 0;
+}
+
+void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
+		     int fd, int group_fd, unsigned long flags)
+{
+	int errno_saved = errno;
+
+	if (store_event(attr, pid, cpu, fd, group_fd, flags))
+		die("test attr FAILED");
+
+	errno = errno_saved;
+}
+
+static int run_dir(const char *d, const char *perf)
+{
+	char cmd[3*PATH_MAX];
+
+	snprintf(cmd, 3*PATH_MAX, "python %s/attr.py -d %s/attr/ -p %s %s",
+		 d, d, perf, verbose ? "-v" : "");
+
+	return system(cmd);
+}
+
+int test_attr__run(void)
+{
+	struct stat st;
+	char path_perf[PATH_MAX];
+	char path_dir[PATH_MAX];
+
+	/* First try developement tree tests. */
+	if (!lstat("./tests", &st))
+		return run_dir("./tests", "./perf");
+
+	/* Then installed path. */
+	snprintf(path_dir,  PATH_MAX, "%s/tests", perf_exec_path());
+	snprintf(path_perf, PATH_MAX, "%s/perf", BINDIR);
+
+	if (!lstat(path_dir, &st) &&
+	    !lstat(path_perf, &st))
+		return run_dir(path_dir, path_perf);
+
+	fprintf(stderr, " (ommitted)");
+	return 0;
+}

tools/perf/tests/attr.py

···
+#! /usr/bin/python
+
+import os
+import sys
+import glob
+import optparse
+import tempfile
+import logging
+import shutil
+import ConfigParser
+
+class Fail(Exception):
+    def __init__(self, test, msg):
+        self.msg = msg
+        self.test = test
+    def getMsg(self):
+        return '\'%s\' - %s' % (self.test.path, self.msg)
+
+class Unsup(Exception):
+    def __init__(self, test):
+        self.test = test
+    def getMsg(self):
+        return '\'%s\'' % self.test.path
+
+class Event(dict):
+    terms = [
+        'flags',
+        'type',
+        'size',
+        'config',
+        'sample_period',
+        'sample_type',
+        'read_format',
+        'disabled',
+        'inherit',
+        'pinned',
+        'exclusive',
+        'exclude_user',
+        'exclude_kernel',
+        'exclude_hv',
+        'exclude_idle',
+        'mmap',
+        'comm',
+        'freq',
+        'inherit_stat',
+        'enable_on_exec',
+        'task',
+        'watermark',
+        'precise_ip',
+        'mmap_data',
+        'sample_id_all',
+        'exclude_host',
+        'exclude_guest',
+        'exclude_callchain_kernel',
+        'exclude_callchain_user',
+        'wakeup_events',
+        'bp_type',
+        'config1',
+        'config2',
+        'branch_sample_type',
+        'sample_regs_user',
+        'sample_stack_user',
+    ]
+
+    def add(self, data):
+        for key, val in data:
+            log.debug("      %s = %s" % (key, val))
+            self[key] = val
+
+    def __init__(self, name, data, base):
+        log.info("    Event %s" % name);
+        self.name  = name;
+        self.group = ''
+        self.add(base)
+        self.add(data)
+
+    def compare_data(self, a, b):
+        # Allow multiple values in assignment separated by '|'
+        a_list = a.split('|')
+        b_list = b.split('|')
+
+        for a_item in a_list:
+            for b_item in b_list:
+                if (a_item == b_item):
+                    return True
+                elif (a_item == '*') or (b_item == '*'):
+                    return True
+
+        return False
+
+    def equal(self, other):
+        for t in Event.terms:
+            log.debug("      [%s] %s %s" % (t, self[t], other[t]));
+            if not self.has_key(t) or not other.has_key(t):
+                return False
+            if not self.compare_data(self[t], other[t]):
+                return False
+        return True
+
+# Test file description needs to have following sections:
+# [config]
+#   - just single instance in file
+#   - needs to specify:
+#     'command' - perf command name
+#     'args'    - special command arguments
+#     'ret'     - expected command return value (0 by default)
+#
+# [eventX:base]
+#   - one or multiple instances in file
+#   - expected values assignments
+class Test(object):
+    def __init__(self, path, options):
+        parser = ConfigParser.SafeConfigParser()
+        parser.read(path)
+
+        log.warning("running '%s'" % path)
+
+        self.path     = path
+        self.test_dir = options.test_dir
+        self.perf     = options.perf
+        self.command  = parser.get('config', 'command')
+        self.args     = parser.get('config', 'args')
+
+        try:
+            self.ret  = parser.get('config', 'ret')
+        except:
+            self.ret  = 0
+
+        self.expect   = {}
+        self.result   = {}
+        log.info("  loading expected events");
+        self.load_events(path, self.expect)
+
+    def is_event(self, name):
+        if name.find("event") == -1:
+            return False
+        else:
+            return True
+
+    def load_events(self, path, events):
+        parser_event = ConfigParser.SafeConfigParser()
+        parser_event.read(path)
+
+        # The event record section header contains 'event' word,
+        # optionaly followed by ':' allowing to load 'parent
+        # event' first as a base
+        for section in filter(self.is_event, parser_event.sections()):
+
+            parser_items = parser_event.items(section);
+            base_items   = {}
+
+            # Read parent event if there's any
+            if (':' in section):
+                base = section[section.index(':') + 1:]
+                parser_base = ConfigParser.SafeConfigParser()
+                parser_base.read(self.test_dir + '/' + base)
+                base_items = parser_base.items('event')
+
+            e = Event(section, parser_items, base_items)
+            events[section] = e
+
+    def run_cmd(self, tempdir):
+        cmd = "PERF_TEST_ATTR=%s %s %s -o %s/perf.data %s" % (tempdir,
+              self.perf, self.command, tempdir, self.args)
+        ret = os.WEXITSTATUS(os.system(cmd))
+
+        log.info("  running '%s' ret %d " % (cmd, ret))
+
+        if ret != int(self.ret):
+            raise Unsup(self)
+
+    def compare(self, expect, result):
+        match = {}
+
+        log.info("  compare");
+
+        # For each expected event find all matching
+        # events in result. Fail if there's not any.
+        for exp_name, exp_event in expect.items():
+            exp_list = []
+            log.debug("    matching [%s]" % exp_name)
+            for res_name, res_event in result.items():
+                log.debug("      to [%s]" % res_name)
+                if (exp_event.equal(res_event)):
+                    exp_list.append(res_name)
+                    log.debug("    ->OK")
+                else:
+                    log.debug("    ->FAIL");
+
+            log.info("    match: [%s] matches %s" % (exp_name, str(exp_list)))
+
+            # we did not any matching event - fail
+            if (not exp_list):
+                raise Fail(self, 'match failure');
+
+            match[exp_name] = exp_list
+
+        # For each defined group in the expected events
+        # check we match the same group in the result.
+        for exp_name, exp_event in expect.items():
+            group = exp_event.group
+
+            if (group == ''):
+                continue
+
+            for res_name in match[exp_name]:
+                res_group = result[res_name].group
+                if res_group not in match[group]:
+                    raise Fail(self, 'group failure')
+
+                log.info("    group: [%s] matches group leader %s" %
+                         (exp_name, str(match[group])))
+
+        log.info("  matched")
+
+    def resolve_groups(self, events):
+        for name, event in events.items():
+            group_fd = event['group_fd'];
+            if group_fd == '-1':
+                continue;
+
+            for iname, ievent in events.items():
+                if (ievent['fd'] == group_fd):
+                    event.group = iname
+                    log.debug('[%s] has group leader [%s]' % (name, iname))
+                    break;
+
+    def run(self):
+        tempdir = tempfile.mkdtemp();
+
+        try:
+            # run the test script
+            self.run_cmd(tempdir);
+
+            # load events expectation for the test
+            log.info("  loading result events");
+            for f in glob.glob(tempdir + '/event*'):
+                self.load_events(f, self.result);
+
+            # resolve group_fd to event names
+            self.resolve_groups(self.expect);
+            self.resolve_groups(self.result);
+
+            # do the expectation - results matching - both ways
+            self.compare(self.expect, self.result)
+            self.compare(self.result, self.expect)
+
+        finally:
+            # cleanup
+            shutil.rmtree(tempdir)
+
+
+def run_tests(options):
+    for f in glob.glob(options.test_dir + '/' + options.test):
+        try:
+            Test(f, options).run()
+        except Unsup, obj:
+            log.warning("unsupp  %s" % obj.getMsg())
+
+def setup_log(verbose):
+    global log
+    level = logging.CRITICAL
+
+    if verbose == 1:
+        level = logging.WARNING
+    if verbose == 2:
+        level = logging.INFO
+    if verbose >= 3:
+        level = logging.DEBUG
+
+    log = logging.getLogger('test')
+    log.setLevel(level)
+    ch  = logging.StreamHandler()
+    ch.setLevel(level)
+    formatter = logging.Formatter('%(message)s')
+    ch.setFormatter(formatter)
+    log.addHandler(ch)
+
+USAGE = '''%s [OPTIONS]
+  -d dir  # tests dir
+  -p path # perf binary
+  -t test # single test
+  -v      # verbose level
+''' % sys.argv[0]
+
+def main():
+    parser = optparse.OptionParser(usage=USAGE)
+
+    parser.add_option("-t", "--test",
+                      action="store", type="string", dest="test")
+    parser.add_option("-d", "--test-dir",
+                      action="store", type="string", dest="test_dir")
+    parser.add_option("-p", "--perf",
+                      action="store", type="string", dest="perf")
+    parser.add_option("-v", "--verbose",
+                      action="count", dest="verbose")
+
+    options, args = parser.parse_args()
+    if args:
+        parser.error('FAILED wrong arguments %s' %  ' '.join(args))
+        return -1
+
+    setup_log(options.verbose)
+
+    if not options.test_dir:
+        print 'FAILED no -d option specified'
+        sys.exit(-1)
+
+    if not options.test:
+        options.test = 'test*'
+
+    try:
+        run_tests(options)
+
+    except Fail, obj:
+        print "FAILED %s" % obj.getMsg();
+        sys.exit(-1)
+
+    sys.exit(0)
+
+if __name__ == '__main__':
+    main()

tools/perf/tests/attr/README

···
+The struct perf_event_attr test (attr tests) support
+====================================================
+This testing support is embedded into perf directly and is governed
+by the PERF_TEST_ATTR environment variable and hook inside the
+sys_perf_event_open function.
+
+The general idea is to store 'struct perf_event_attr' details for
+each event created within single perf command. Each event details
+are stored into separate text file. Once perf command is finished
+these files are checked for values we expect for command.
+
+The attr tests consist of following parts:
+
+tests/attr.c
+------------
+This is the sys_perf_event_open hook implementation. The hook
+is triggered when the PERF_TEST_ATTR environment variable is
+defined. It must contain name of existing directory with access
+and write permissions.
+
+For each sys_perf_event_open call event details are stored in
+separate file. Besides 'struct perf_event_attr' values we also
+store 'fd' and 'group_fd' values to allow checking for groups.
+
+tests/attr.py
+-------------
+This is the python script that does all the hard work. It reads
+the test definition, executes it and checks results.
+
+tests/attr/
+-----------
+Directory containing all attr test definitions.
+Following tests are defined (with perf commands):
+
+  perf record kill                              (test-record-basic)
+  perf record -b kill                           (test-record-branch-any)
+  perf record -j any kill                       (test-record-branch-filter-any)
+  perf record -j any_call kill                  (test-record-branch-filter-any_call)
+  perf record -j any_ret kill                   (test-record-branch-filter-any_ret)
+  perf record -j hv kill                        (test-record-branch-filter-hv)
+  perf record -j ind_call kill                  (test-record-branch-filter-ind_call)
+  perf record -j k kill                         (test-record-branch-filter-k)
+  perf record -j u kill                         (test-record-branch-filter-u)
+  perf record -c 123 kill                       (test-record-count)
+  perf record -d kill                           (test-record-data)
+  perf record -F 100 kill                       (test-record-freq)
+  perf record -g -- kill                        (test-record-graph-default)
+  perf record -g dwarf -- kill                  (test-record-graph-dwarf)
+  perf record -g fp kill                        (test-record-graph-fp)
+  perf record --group -e cycles,instructions kill (test-record-group)
+  perf record -e '{cycles,instructions}' kill   (test-record-group1)
+  perf record -D kill                           (test-record-no-delay)
+  perf record -i kill                           (test-record-no-inherit)
+  perf record -n kill                           (test-record-no-samples)
+  perf record -c 100 -P kill                    (test-record-period)
+  perf record -R kill                           (test-record-raw)
+  perf stat -e cycles kill                      (test-stat-basic)
+  perf stat kill                                (test-stat-default)
+  perf stat -d kill                             (test-stat-detailed-1)
+  perf stat -dd kill                            (test-stat-detailed-2)
+  perf stat -ddd kill                           (test-stat-detailed-3)
+  perf stat --group -e cycles,instructions kill (test-stat-group)
+  perf stat -e '{cycles,instructions}' kill     (test-stat-group1)
+  perf stat -i -e cycles kill                   (test-stat-no-inherit)

tools/perf/tests/attr/base-record

···
+[event]
+fd=1
+group_fd=-1
+flags=0
+type=0|1
+size=96
+config=0
+sample_period=4000
+sample_type=263
+read_format=7
+disabled=1
+inherit=1
+pinned=0
+exclusive=0
+exclude_user=0
+exclude_kernel=0
+exclude_hv=0
+exclude_idle=0
+mmap=1
+comm=1
+freq=1
+inherit_stat=0
+enable_on_exec=1
+task=0
+watermark=0
+precise_ip=0
+mmap_data=0
+sample_id_all=1
+exclude_host=0
+exclude_guest=1
+exclude_callchain_kernel=0
+exclude_callchain_user=0
+wakeup_events=0
+bp_type=0
+config1=0
+config2=0
+branch_sample_type=0
+sample_regs_user=0
+sample_stack_user=0

tools/perf/tests/attr/base-stat

···
+[event]
+fd=1
+group_fd=-1
+flags=0
+type=0
+size=96
+config=0
+sample_period=0
+sample_type=0
+read_format=3
+disabled=1
+inherit=1
+pinned=0
+exclusive=0
+exclude_user=0
+exclude_kernel=0
+exclude_hv=0
+exclude_idle=0
+mmap=0
+comm=0
+freq=0
+inherit_stat=0
+enable_on_exec=1
+task=0
+watermark=0
+precise_ip=0
+mmap_data=0
+sample_id_all=0
+exclude_host=0
+exclude_guest=1
+exclude_callchain_kernel=0
+exclude_callchain_user=0
+wakeup_events=0
+bp_type=0
+config1=0
+config2=0
+branch_sample_type=0
+sample_regs_user=0
+sample_stack_user=0

tools/perf/tests/attr/test-record-basic

···
+[config]
+command = record
+args    = kill >/dev/null 2>&1
+
+[event:base-record]

tools/perf/tests/attr/test-record-branch-any

···
+[config]
+command = record
+args    = -b kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=8

tools/perf/tests/attr/test-record-branch-filter-any

···
+[config]
+command = record
+args    = -j any kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=8

tools/perf/tests/attr/test-record-branch-filter-any_call

···
+[config]
+command = record
+args    = -j any_call kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=16

tools/perf/tests/attr/test-record-branch-filter-any_ret

···
+[config]
+command = record
+args    = -j any_ret kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=32

tools/perf/tests/attr/test-record-branch-filter-hv

···
+[config]
+command = record
+args    = -j hv kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=8

tools/perf/tests/attr/test-record-branch-filter-ind_call

···
+[config]
+command = record
+args    = -j ind_call kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=64

tools/perf/tests/attr/test-record-branch-filter-k

···
+[config]
+command = record
+args    = -j k kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=8

tools/perf/tests/attr/test-record-branch-filter-u

···
+[config]
+command = record
+args    = -j u kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=2311
+branch_sample_type=8

tools/perf/tests/attr/test-record-count

···
+[config]
+command = record
+args    = -c 123 kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=123
+sample_type=7
+freq=0

tools/perf/tests/attr/test-record-data

···
+[config]
+command = record
+args    = -d kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=271
+mmap_data=1

tools/perf/tests/attr/test-record-freq

···
+[config]
+command = record
+args    = -F 100 kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=100

tools/perf/tests/attr/test-record-graph-default

···
+[config]
+command = record
+args    = -g -- kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=295

tools/perf/tests/attr/test-record-graph-dwarf

···
+[config]
+command = record
+args    = -g dwarf -- kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=12583
+exclude_callchain_user=1
+sample_stack_user=8192
+# TODO different for each arch, no support for that now
+sample_regs_user=*

tools/perf/tests/attr/test-record-graph-fp

···
+[config]
+command = record
+args    = -g fp kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=295

tools/perf/tests/attr/test-record-group

···
+[config]
+command = record
+args    = --group -e cycles,instructions kill >/dev/null 2>&1
+
+[event-1:base-record]
+fd=1
+group_fd=-1
+sample_type=327
+
+[event-2:base-record]
+fd=2
+group_fd=1
+config=1
+sample_type=327
+mmap=0
+comm=0
+enable_on_exec=0

tools/perf/tests/attr/test-record-group1

···
+[config]
+command = record
+args    = -e '{cycles,instructions}' kill >/tmp/krava 2>&1
+
+[event-1:base-record]
+fd=1
+group_fd=-1
+sample_type=327
+
+[event-2:base-record]
+fd=2
+group_fd=1
+type=0
+config=1
+sample_type=327
+mmap=0
+comm=0
+# TODO this is disabled for --group option, enabled otherwise
+#      check why..
+enable_on_exec=1

tools/perf/tests/attr/test-record-no-delay

···
+[config]
+command = record
+args    = -D kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=263
+watermark=0
+wakeup_events=1

tools/perf/tests/attr/test-record-no-inherit

···
+[config]
+command = record
+args    = -i kill >/dev/null 2>&1
+
+[event:base-record]
+sample_type=259
+inherit=0

tools/perf/tests/attr/test-record-no-samples

···
+[config]
+command = record
+args    = -n kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=0

tools/perf/tests/attr/test-record-period

···
+[config]
+command = record
+args    = -c 100 -P kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=100
+freq=0

tools/perf/tests/attr/test-record-raw

···
+[config]
+command = record
+args    = -R kill >/dev/null 2>&1
+
+[event:base-record]
+sample_period=4000
+sample_type=1415

tools/perf/tests/attr/test-stat-basic

···
+[config]
+command = stat
+args    = -e cycles kill >/dev/null 2>&1
+ret     = 1
+
+[event:base-stat]

tools/perf/tests/attr/test-stat-default

···
+[config]
+command = stat
+args    = kill >/dev/null 2>&1
+ret     = 1
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_TASK_CLOCK
+[event1:base-stat]
+fd=1
+type=1
+config=1
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CONTEXT_SWITCHES
+[event2:base-stat]
+fd=2
+type=1
+config=3
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CPU_MIGRATIONS
+[event3:base-stat]
+fd=3
+type=1
+config=4
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_PAGE_FAULTS
+[event4:base-stat]
+fd=4
+type=1
+config=2
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_CPU_CYCLES
+[event5:base-stat]
+fd=5
+type=0
+config=0
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+[event6:base-stat]
+fd=6
+type=0
+config=7
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+[event7:base-stat]
+fd=7
+type=0
+config=8
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_INSTRUCTIONS
+[event8:base-stat]
+fd=8
+type=0
+config=1
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
+[event9:base-stat]
+fd=9
+type=0
+config=4
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
+[event10:base-stat]
+fd=10
+type=0
+config=5

tools/perf/tests/attr/test-stat-detailed-1

···
+[config]
+command = stat
+args    = -d kill >/dev/null 2>&1
+ret     = 1
+
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_TASK_CLOCK
+[event1:base-stat]
+fd=1
+type=1
+config=1
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CONTEXT_SWITCHES
+[event2:base-stat]
+fd=2
+type=1
+config=3
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CPU_MIGRATIONS
+[event3:base-stat]
+fd=3
+type=1
+config=4
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_PAGE_FAULTS
+[event4:base-stat]
+fd=4
+type=1
+config=2
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_CPU_CYCLES
+[event5:base-stat]
+fd=5
+type=0
+config=0
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+[event6:base-stat]
+fd=6
+type=0
+config=7
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+[event7:base-stat]
+fd=7
+type=0
+config=8
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_INSTRUCTIONS
+[event8:base-stat]
+fd=8
+type=0
+config=1
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
+[event9:base-stat]
+fd=9
+type=0
+config=4
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
+[event10:base-stat]
+fd=10
+type=0
+config=5
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event11:base-stat]
+fd=11
+type=3
+config=0
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event12:base-stat]
+fd=12
+type=3
+config=65536
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_LL                 <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event13:base-stat]
+fd=13
+type=3
+config=2
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_LL                 <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event14:base-stat]
+fd=14
+type=3
+config=65538

tools/perf/tests/attr/test-stat-detailed-2

···
+[config]
+command = stat
+args    = -dd kill >/dev/null 2>&1
+ret     = 1
+
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_TASK_CLOCK
+[event1:base-stat]
+fd=1
+type=1
+config=1
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CONTEXT_SWITCHES
+[event2:base-stat]
+fd=2
+type=1
+config=3
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CPU_MIGRATIONS
+[event3:base-stat]
+fd=3
+type=1
+config=4
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_PAGE_FAULTS
+[event4:base-stat]
+fd=4
+type=1
+config=2
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_CPU_CYCLES
+[event5:base-stat]
+fd=5
+type=0
+config=0
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+[event6:base-stat]
+fd=6
+type=0
+config=7
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+[event7:base-stat]
+fd=7
+type=0
+config=8
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_INSTRUCTIONS
+[event8:base-stat]
+fd=8
+type=0
+config=1
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
+[event9:base-stat]
+fd=9
+type=0
+config=4
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
+[event10:base-stat]
+fd=10
+type=0
+config=5
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event11:base-stat]
+fd=11
+type=3
+config=0
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event12:base-stat]
+fd=12
+type=3
+config=65536
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_LL                 <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event13:base-stat]
+fd=13
+type=3
+config=2
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_LL                 <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event14:base-stat]
+fd=14
+type=3
+config=65538
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_L1I                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event15:base-stat]
+fd=15
+type=3
+config=1
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_L1I                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event16:base-stat]
+fd=16
+type=3
+config=65537
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event17:base-stat]
+fd=17
+type=3
+config=3
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event18:base-stat]
+fd=18
+type=3
+config=65539
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event19:base-stat]
+fd=19
+type=3
+config=4
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event20:base-stat]
+fd=20
+type=3
+config=65540

tools/perf/tests/attr/test-stat-detailed-3

···
+[config]
+command = stat
+args    = -ddd kill >/dev/null 2>&1
+ret     = 1
+
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_TASK_CLOCK
+[event1:base-stat]
+fd=1
+type=1
+config=1
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CONTEXT_SWITCHES
+[event2:base-stat]
+fd=2
+type=1
+config=3
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_CPU_MIGRATIONS
+[event3:base-stat]
+fd=3
+type=1
+config=4
+
+# PERF_TYPE_SOFTWARE / PERF_COUNT_SW_PAGE_FAULTS
+[event4:base-stat]
+fd=4
+type=1
+config=2
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_CPU_CYCLES
+[event5:base-stat]
+fd=5
+type=0
+config=0
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+[event6:base-stat]
+fd=6
+type=0
+config=7
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+[event7:base-stat]
+fd=7
+type=0
+config=8
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_INSTRUCTIONS
+[event8:base-stat]
+fd=8
+type=0
+config=1
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
+[event9:base-stat]
+fd=9
+type=0
+config=4
+
+# PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
+[event10:base-stat]
+fd=10
+type=0
+config=5
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event11:base-stat]
+fd=11
+type=3
+config=0
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event12:base-stat]
+fd=12
+type=3
+config=65536
+
+# PERF_TYPE_HW_CACHE /
+#  PERF_COUNT_HW_CACHE_LL                 <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event13:base-stat]
+fd=13
+type=3
+config=2
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_LL                 <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event14:base-stat]
+fd=14
+type=3
+config=65538
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_L1I                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event15:base-stat]
+fd=15
+type=3
+config=1
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_L1I                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event16:base-stat]
+fd=16
+type=3
+config=65537
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event17:base-stat]
+fd=17
+type=3
+config=3
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event18:base-stat]
+fd=18
+type=3
+config=65539
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event19:base-stat]
+fd=19
+type=3
+config=4
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_READ            <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event20:base-stat]
+fd=20
+type=3
+config=65540
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_PREFETCH        <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_ACCESS      << 16)
+[event21:base-stat]
+fd=21
+type=3
+config=512
+
+# PERF_TYPE_HW_CACHE,
+#  PERF_COUNT_HW_CACHE_L1D                <<  0  |
+# (PERF_COUNT_HW_CACHE_OP_PREFETCH        <<  8) |
+# (PERF_COUNT_HW_CACHE_RESULT_MISS        << 16)
+[event22:base-stat]
+fd=22
+type=3
+config=66048

tools/perf/tests/attr/test-stat-group

···
+[config]
+command = stat
+args    = --group -e cycles,instructions kill >/dev/null 2>&1
+ret     = 1
+
+[event-1:base-stat]
+fd=1
+group_fd=-1
+
+[event-2:base-stat]
+fd=2
+group_fd=1
+config=1
+disabled=0
+enable_on_exec=0

tools/perf/tests/attr/test-stat-group1

···
+[config]
+command = stat
+args    = -e '{cycles,instructions}' kill >/dev/null 2>&1
+ret     = 1
+
+[event-1:base-stat]
+fd=1
+group_fd=-1
+
+[event-2:base-stat]
+fd=2
+group_fd=1
+config=1
+# TODO both disabled and enable_on_exec are disabled for --group option,
+#      enabled otherwise, check why..
+disabled=1
+enable_on_exec=1

tools/perf/tests/attr/test-stat-no-inherit

···
+[config]
+command = stat
+args    = -i -e cycles kill >/dev/null 2>&1
+ret     = 1
+
+[event:base-stat]
+inherit=0

tools/perf/ui/browsers/annotate.c

···
 	struct disasm_line *cursor = ab->selection, *target;
 	struct browser_disasm_line *btarget, *bcursor;
 	unsigned int from, to;
+	struct map_symbol *ms = ab->b.priv;
+	struct symbol *sym = ms->sym;
+
+	/* PLT symbols contain external offsets */
+	if (strstr(sym->name, "@plt"))
+		return;
 
 	if (!cursor || !cursor->ins || !ins__is_jump(cursor->ins) ||
 	    !disasm_line__has_offset(cursor))
···
 	browser->b.nr_entries = browser->nr_asm_entries;
 }
 
-static bool annotate_browser__callq(struct annotate_browser *browser,
-				    int evidx, void (*timer)(void *arg),
-				    void *arg, int delay_secs)
+static bool annotate_browser__callq(struct annotate_browser *browser, int evidx,
+				    struct hist_browser_timer *hbt)
 {
 	struct map_symbol *ms = browser->b.priv;
 	struct disasm_line *dl = browser->selection;
···
 	}
 
 	pthread_mutex_unlock(&notes->lock);
-	symbol__tui_annotate(target, ms->map, evidx, timer, arg, delay_secs);
+	symbol__tui_annotate(target, ms->map, evidx, hbt);
 	ui_browser__show_title(&browser->b, sym->name);
 	return true;
 }
···
 }
 
 static int annotate_browser__run(struct annotate_browser *browser, int evidx,
-				 void(*timer)(void *arg),
-				 void *arg, int delay_secs)
+				 struct hist_browser_timer *hbt)
 {
 	struct rb_node *nd = NULL;
 	struct map_symbol *ms = browser->b.priv;
 	struct symbol *sym = ms->sym;
 	const char *help = "Press 'h' for help on key bindings";
+	int delay_secs = hbt ? hbt->refresh : 0;
 	int key;
 
 	if (ui_browser__show(&browser->b, sym->name, help) < 0)
···
 
 		switch (key) {
 		case K_TIMER:
-			if (timer != NULL)
-				timer(arg);
+			if (hbt)
+				hbt->timer(hbt->arg);
 
 			if (delay_secs != 0)
 				symbol__annotate_decay_histogram(sym, evidx);
···
 					goto show_sup_ins;
 				goto out;
 			} else if (!(annotate_browser__jump(browser) ||
-				     annotate_browser__callq(browser, evidx, timer, arg, delay_secs))) {
+				     annotate_browser__callq(browser, evidx, hbt))) {
 show_sup_ins:
 				ui_helpline__puts("Actions are only available for 'callq', 'retq' & jump instructions.");
 			}
···
 }
 
 int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
-			     void(*timer)(void *arg), void *arg, int delay_secs)
+			     struct hist_browser_timer *hbt)
 {
-	return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx,
-				    timer, arg, delay_secs);
+	return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx, hbt);
 }
 
 static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
 						size_t size)
 {
 	u64 offset;
+	struct map_symbol *ms = browser->b.priv;
+	struct symbol *sym = ms->sym;
+
+	/* PLT symbols contain external offsets */
+	if (strstr(sym->name, "@plt"))
+		return;
 
 	for (offset = 0; offset < size; ++offset) {
 		struct disasm_line *dl = browser->offsets[offset], *dlt;
···
 }
 
 int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
-			 void(*timer)(void *arg), void *arg,
-			 int delay_secs)
+			 struct hist_browser_timer *hbt)
 {
 	struct disasm_line *pos, *n;
 	struct annotation *notes;
···
 
 	annotate_browser__update_addr_width(&browser);
 
-	ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
+	ret = annotate_browser__run(&browser, evidx, hbt);
 	list_for_each_entry_safe(pos, n, &notes->src->source, node) {
 		list_del(&pos->node);
 		disasm_line__free(pos);

tools/perf/ui/browsers/hists.c

···
 #include "../../util/pstack.h"
 #include "../../util/sort.h"
 #include "../../util/util.h"
+#include "../../arch/common.h"
 
 #include "../browser.h"
 #include "../helpline.h"
···
 }
 
 static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
-			     void(*timer)(void *arg), void *arg, int delay_secs)
+			     struct hist_browser_timer *hbt)
 {
 	int key;
 	char title[160];
+	int delay_secs = hbt ? hbt->refresh : 0;
 
 	browser->b.entries = &browser->hists->entries;
 	browser->b.nr_entries = browser->hists->nr_entries;
···
 
 		switch (key) {
 		case K_TIMER:
-			timer(arg);
+			hbt->timer(hbt->arg);
 			ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
 
 			if (browser->hists->stats.nr_lost_warned !=
···
 	}
 }
 
+/* Check whether the browser is for 'top' or 'report' */
+static inline bool is_report_browser(void *timer)
+{
+	return timer == NULL;
+}
+
 static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 				    const char *helpline, const char *ev_name,
 				    bool left_exits,
-				    void(*timer)(void *arg), void *arg,
-				    int delay_secs)
+				    struct hist_browser_timer *hbt,
+				    struct perf_session_env *env)
 {
 	struct hists *hists = &evsel->hists;
 	struct hist_browser *browser = hist_browser__new(hists);
···
 	int key = -1;
 	char buf[64];
 	char script_opt[64];
+	int delay_secs = hbt ? hbt->refresh : 0;
 
 	if (browser == NULL)
 		return -1;
···
 
 		nr_options = 0;
 
-		key = hist_browser__run(browser, ev_name, timer, arg, delay_secs);
+		key = hist_browser__run(browser, ev_name, hbt);
 
 		if (browser->he_selection != NULL) {
 			thread = hist_browser__selected_thread(browser);
···
 			}
 			continue;
 		case 'r':
-			goto do_scripts;
+			if (is_report_browser(hbt))
+				goto do_scripts;
+			continue;
 		case K_F1:
 		case 'h':
 		case '?':
···
 					"E             Expand all callchains\n"
 					"d             Zoom into current DSO\n"
 					"t             Zoom into current Thread\n"
-					"r             Run available scripts\n"
+					"r             Run available scripts('perf report' only)\n"
 					"P             Print histograms to perf.hist.N\n"
 					"V             Verbose (DSO names in callchains, etc)\n"
 					"/             Filter symbol by name");
···
 			struct hist_entry *he;
 			int err;
 do_annotate:
+			if (!objdump_path && perf_session_env__lookup_objdump(env))
+				continue;
+
 			he = hist_browser__selected_entry(browser);
 			if (he == NULL)
 				continue;
···
 			 * Don't let this be freed, say, by hists__decay_entry.
 			 */
 			he->used = true;
-			err = hist_entry__tui_annotate(he, evsel->idx,
-						       timer, arg, delay_secs);
+			err = hist_entry__tui_annotate(he, evsel->idx, hbt);
 			he->used = false;
 			/*
 			 * offer option to annotate the other branch source or target
···
 	struct ui_browser b;
 	struct perf_evsel *selection;
 	bool lost_events, lost_events_warned;
+	struct perf_session_env *env;
 };
 
 static void perf_evsel_menu__write(struct ui_browser *browser,
···
 
 static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
 				int nr_events, const char *help,
-				void(*timer)(void *arg), void *arg, int delay_secs)
+				struct hist_browser_timer *hbt)
 {
 	struct perf_evlist *evlist = menu->b.priv;
 	struct perf_evsel *pos;
 	const char *ev_name, *title = "Available samples";
+	int delay_secs = hbt ? hbt->refresh : 0;
 	int key;
 
 	if (ui_browser__show(&menu->b, title,
···
 
 		switch (key) {
 		case K_TIMER:
-			timer(arg);
+			hbt->timer(hbt->arg);
 
 			if (!menu->lost_events_warned && menu->lost_events) {
 				ui_browser__warn_lost_events(&menu->b);
···
 			 * Give the calling tool a chance to populate the non
 			 * default evsel resorted hists tree.
 			 */
-			if (timer)
-				timer(arg);
+			if (hbt)
+				hbt->timer(hbt->arg);
 			ev_name = perf_evsel__name(pos);
 			key = perf_evsel__hists_browse(pos, nr_events, help,
-						       ev_name, true, timer,
-						       arg, delay_secs);
+						       ev_name, true, hbt,
+						       menu->env);
 			ui_browser__show_title(&menu->b, title);
 			switch (key) {
 			case K_TAB:
···
 
 static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
 					   const char *help,
-					   void(*timer)(void *arg), void *arg,
-					   int delay_secs)
+					   struct hist_browser_timer *hbt,
+					   struct perf_session_env *env)
 {
 	struct perf_evsel *pos;
 	struct perf_evsel_menu menu = {
···
 			.nr_entries = evlist->nr_entries,
 			.priv	    = evlist,
 		},
+		.env = env,
 	};
 
 	ui_helpline__push("Press ESC to exit");
···
 			menu.b.width = line_len;
 	}
 
-	return perf_evsel_menu__run(&menu, evlist->nr_entries, help, timer,
-				    arg, delay_secs);
+	return perf_evsel_menu__run(&menu, evlist->nr_entries, help, hbt);
 }
 
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
-				  void(*timer)(void *arg), void *arg,
-				  int delay_secs)
+				  struct hist_browser_timer *hbt,
+				  struct perf_session_env *env)
 {
 	if (evlist->nr_entries == 1) {
 		struct perf_evsel *first = list_entry(evlist->entries.next,
 						      struct perf_evsel, node);
 		const char *ev_name = perf_evsel__name(first);
 		return perf_evsel__hists_browse(first, evlist->nr_entries, help,
-						ev_name, false, timer, arg,
-						delay_secs);
+						ev_name, false, hbt, env);
 	}
 
-	return __perf_evlist__tui_browse_hists(evlist, help,
-					       timer, arg, delay_secs);
+	return __perf_evlist__tui_browse_hists(evlist, help, hbt, env);
 }

tools/perf/ui/gtk/browser.c

···
 
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
 				  const char *help,
-				  void (*timer) (void *arg)__maybe_unused,
-				  void *arg __maybe_unused,
-				  int delay_secs __maybe_unused)
+				  struct hist_browser_timer *hbt __maybe_unused)
 {
 	struct perf_evsel *pos;
 	GtkWidget *vbox;

tools/perf/ui/hist.c

···
 
 static double baseline_percent(struct hist_entry *he)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	struct hists *pair_hists = pair ? pair->hists : NULL;
 	double percent = 0.0;
 
···
 {
 	double percent = baseline_percent(he);
 
-	if (he->pair)
+	if (hist_entry__has_pairs(he))
 		return percent_color_snprintf(hpp->buf, hpp->size, " %6.2f%%", percent);
 	else
 		return scnprintf(hpp->buf, hpp->size, "        ");
···
 	double percent = baseline_percent(he);
 	const char *fmt = symbol_conf.field_sep ? "%.2f" : " %6.2f%%";
 
-	if (he->pair || symbol_conf.field_sep)
+	if (hist_entry__has_pairs(he) || symbol_conf.field_sep)
 		return scnprintf(hpp->buf, hpp->size, fmt, percent);
 	else
 		return scnprintf(hpp->buf, hpp->size, "            ");
···
 
 static int hpp__entry_period_baseline(struct perf_hpp *hpp, struct hist_entry *he)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	u64 period = pair ? pair->stat.period : 0;
 	const char *fmt = symbol_conf.field_sep ? "%" PRIu64 : "%12" PRIu64;
 
···
 static int hpp__entry_displ(struct perf_hpp *hpp,
 			    struct hist_entry *he)
 {
-	struct hist_entry *pair = he->pair;
+	struct hist_entry *pair = hist_entry__next_pair(he);
 	long displacement = pair ? pair->position - he->position : 0;
 	const char *fmt = symbol_conf.field_sep ? "%s" : "%6.6s";
 	char buf[32] = " ";

tools/perf/util/PERF-VERSION-GEN

···
 LF='
 '
 
+#
 # First check if there is a .git to get the version from git describe
-# otherwise try to get the version from the kernel makefile
+# otherwise try to get the version from the kernel Makefile
+#
 if test -d ../../.git -o -f ../../.git &&
-	VN=$(git describe --match 'v[0-9].[0-9]*' --abbrev=4 HEAD 2>/dev/null) &&
-	case "$VN" in
-	*$LF*) (exit 1) ;;
-	v[0-9]*)
-		git update-index -q --refresh
-		test -z "$(git diff-index --name-only HEAD --)" ||
-		VN="$VN-dirty" ;;
-	esac
+	VN=$(git tag 2>/dev/null | tail -1 | grep -E "v[0-9].[0-9]*")
 then
+	VN=$(echo $VN"-g"$(git log -1 --abbrev=4 --pretty=format:"%h" HEAD))
 	VN=$(echo "$VN" | sed -e 's/-/./g');
 else
 	VN=$(MAKEFLAGS= make -sC ../.. kernelversion)

tools/perf/util/annotate.c

···
 	if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
 		goto out_free_ops;
 
-        ops->locked.ins = ins__find(name);
-        if (ops->locked.ins == NULL)
-                goto out_free_ops;
+	ops->locked.ins = ins__find(name);
+	if (ops->locked.ins == NULL)
+		goto out_free_ops;
 
-        if (!ops->locked.ins->ops)
-                return 0;
+	if (!ops->locked.ins->ops)
+		return 0;
 
-        if (ops->locked.ins->ops->parse)
-                ops->locked.ins->ops->parse(ops->locked.ops);
+	if (ops->locked.ins->ops->parse)
+		ops->locked.ins->ops->parse(ops->locked.ops);
 
 	return 0;
 
···
 	{ .name = "testb", .ops  = &mov_ops, },
 	{ .name = "testl", .ops  = &mov_ops, },
 	{ .name = "xadd",  .ops  = &mov_ops, },
+	{ .name = "xbeginl", .ops  = &jump_ops, },
+	{ .name = "xbeginq", .ops  = &jump_ops, },
 };
 
 static int ins__cmp(const void *name, const void *insp)
···
 	struct source_line *iter;
 	struct rb_node **p = &root->rb_node;
 	struct rb_node *parent = NULL;
+	int ret;
 
 	while (*p != NULL) {
 		parent = *p;
 		iter = rb_entry(parent, struct source_line, node);
 
-		if (src_line->percent > iter->percent)
+		ret = strcmp(iter->path, src_line->path);
+		if (ret == 0) {
+			iter->percent_sum += src_line->percent;
+			return;
+		}
+
+		if (ret < 0)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+
+	src_line->percent_sum = src_line->percent;
+
+	rb_link_node(&src_line->node, parent, p);
+	rb_insert_color(&src_line->node, root);
+}
+
+static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
+{
+	struct source_line *iter;
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *parent = NULL;
+
+	while (*p != NULL) {
+		parent = *p;
+		iter = rb_entry(parent, struct source_line, node);
+
+		if (src_line->percent_sum > iter->percent_sum)
 			p = &(*p)->rb_left;
 		else
 			p = &(*p)->rb_right;
···
 
 	rb_link_node(&src_line->node, parent, p);
 	rb_insert_color(&src_line->node, root);
+}
+
+static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
+{
+	struct source_line *src_line;
+	struct rb_node *node;
+
+	node = rb_first(src_root);
+	while (node) {
+		struct rb_node *next;
+
+		src_line = rb_entry(node, struct source_line, node);
+		next = rb_next(node);
+		rb_erase(node, src_root);
+
+		__resort_source_line(dest_root, src_line);
+		node = next;
+	}
 }
 
 static void symbol__free_source_line(struct symbol *sym, int len)
···
 	struct source_line *src_line;
 	struct annotation *notes = symbol__annotation(sym);
 	struct sym_hist *h = annotation__histogram(notes, evidx);
+	struct rb_root tmp_root = RB_ROOT;
 
 	if (!h->sum)
 		return 0;
···
 			goto next;
 
 		strcpy(src_line[i].path, path);
-		insert_source_line(root, &src_line[i]);
+		insert_source_line(&tmp_root, &src_line[i]);
 
 	next:
 		pclose(fp);
 	}
 
+	resort_source_line(root, &tmp_root);
 	return 0;
 }
 
···
 		char *path;
 
 		src_line = rb_entry(node, struct source_line, node);
-		percent = src_line->percent;
+		percent = src_line->percent_sum;
 		color = get_percent_color(percent);
 		path = src_line->path;
 

tools/perf/util/annotate.h

···
 #include <stdint.h>
 #include "types.h"
 #include "symbol.h"
+#include "hist.h"
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <pthread.h>
···
 struct source_line {
 	struct rb_node	node;
 	double		percent;
+	double		percent_sum;
 	char		*path;
 };
 
···
 
 #ifdef NEWT_SUPPORT
 int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
-			 void(*timer)(void *arg), void *arg, int delay_secs);
+			 struct hist_browser_timer *hbt);
 #else
 static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
 				       struct map *map __maybe_unused,
 				       int evidx __maybe_unused,
-				       void(*timer)(void *arg) __maybe_unused,
-				       void *arg __maybe_unused,
-				       int delay_secs __maybe_unused)
+				       struct hist_browser_timer *hbt
+				       __maybe_unused)
 {
 	return 0;
 }

tools/perf/util/dso-test-data.c tools/perf/tests/dso-data.c

···
 #include <fcntl.h>
 #include <string.h>
 
+#include "machine.h"
 #include "symbol.h"
 
 #define TEST_ASSERT_VAL(text, cond) \

tools/perf/util/dso.c

···
 #include "symbol.h"
 #include "dso.h"
+#include "machine.h"
 #include "util.h"
 #include "debug.h"
 

tools/perf/util/hist.c

···
 			he->ms.map->referenced = true;
 		if (symbol_conf.use_callchain)
 			callchain_init(he->callchain);
+
+		INIT_LIST_HEAD(&he->pairs.node);
 	}
 
 	return he;
···
 
 void hist_entry__free(struct hist_entry *he)
 {
+	free(he->branch_info);
 	free(he);
 }
 
···
 {
 	++hists->stats.nr_events[0];
 	++hists->stats.nr_events[type];
+}
+
+static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
+						 struct hist_entry *pair)
+{
+	struct rb_node **p = &hists->entries.rb_node;
+	struct rb_node *parent = NULL;
+	struct hist_entry *he;
+	int cmp;
+
+	while (*p != NULL) {
+		parent = *p;
+		he = rb_entry(parent, struct hist_entry, rb_node);
+
+		cmp = hist_entry__cmp(pair, he);
+
+		if (!cmp)
+			goto out;
+
+		if (cmp < 0)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+
+	he = hist_entry__new(pair);
+	if (he) {
+		he->stat.nr_events = 0;
+		he->stat.period    = 0;
+		he->hists	   = hists;
+		rb_link_node(&he->rb_node, parent, p);
+		rb_insert_color(&he->rb_node, &hists->entries);
+		hists__inc_nr_entries(hists, he);
+	}
+out:
+	return he;
+}
+
+static struct hist_entry *hists__find_entry(struct hists *hists,
+					    struct hist_entry *he)
+{
+	struct rb_node *n = hists->entries.rb_node;
+
+	while (n) {
+		struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node);
+		int64_t cmp = hist_entry__cmp(he, iter);
+
+		if (cmp < 0)
+			n = n->rb_left;
+		else if (cmp > 0)
+			n = n->rb_right;
+		else
+			return iter;
+	}
+
+	return NULL;
+}
+
+/*
+ * Look for pairs to link to the leader buckets (hist_entries):
+ */
+void hists__match(struct hists *leader, struct hists *other)
+{
+	struct rb_node *nd;
+	struct hist_entry *pos, *pair;
+
+	for (nd = rb_first(&leader->entries); nd; nd = rb_next(nd)) {
+		pos  = rb_entry(nd, struct hist_entry, rb_node);
+		pair = hists__find_entry(other, pos);
+
+		if (pair)
+			hist__entry_add_pair(pos, pair);
+	}
+}
+
+/*
+ * Look for entries in the other hists that are not present in the leader, if
+ * we find them, just add a dummy entry on the leader hists, with period=0,
+ * nr_events=0, to serve as the list header.
+ */
+int hists__link(struct hists *leader, struct hists *other)
+{
+	struct rb_node *nd;
+	struct hist_entry *pos, *pair;
+
+	for (nd = rb_first(&other->entries); nd; nd = rb_next(nd)) {
+		pos = rb_entry(nd, struct hist_entry, rb_node);
+
+		if (!hist_entry__has_pairs(pos)) {
+			pair = hists__add_dummy_entry(leader, pos);
+			if (pair == NULL)
+				return -1;
+			hist__entry_add_pair(pair, pos);
+		}
+	}
+
+	return 0;
 }

tools/perf/util/hist.h

···
 #include <linux/types.h>
 #include <pthread.h>
 #include "callchain.h"
+#include "header.h"
 
 extern struct callchain_param callchain_param;
 
···
 void hists__reset_col_len(struct hists *hists);
 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
 
+void hists__match(struct hists *leader, struct hists *other);
+int hists__link(struct hists *leader, struct hists *other);
+
 struct perf_hpp {
 	char *buf;
 	size_t size;
···
 
 struct perf_evlist;
 
+struct hist_browser_timer {
+	void (*timer)(void *arg);
+	void *arg;
+	int refresh;
+};
+
 #ifdef NEWT_SUPPORT
 #include "../ui/keysyms.h"
 int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
-			     void(*timer)(void *arg), void *arg, int delay_secs);
+			     struct hist_browser_timer *hbt);
 
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
-				  void(*timer)(void *arg), void *arg,
-				  int refresh);
+				  struct hist_browser_timer *hbt,
+				  struct perf_session_env *env);
 int script_browse(const char *script_opt);
 #else
 static inline
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
 				  const char *help __maybe_unused,
-				  void(*timer)(void *arg) __maybe_unused,
-				  void *arg __maybe_unused,
-				  int refresh __maybe_unused)
+				  struct hist_browser_timer *hbt __maybe_unused,
+				  struct perf_session_env *env __maybe_unused)
 {
 	return 0;
 }
···
 static inline int hist_entry__tui_annotate(struct hist_entry *self
 					   __maybe_unused,
 					   int evidx __maybe_unused,
-					   void(*timer)(void *arg)
-					   __maybe_unused,
-					   void *arg __maybe_unused,
-					   int delay_secs __maybe_unused)
+					   struct hist_browser_timer *hbt
+					   __maybe_unused)
 {
 	return 0;
 }
···
 
 #ifdef GTK2_SUPPORT
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
-				  void(*timer)(void *arg), void *arg,
-				  int refresh);
+				  struct hist_browser_timer *hbt __maybe_unused);
 #else
 static inline
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist __maybe_unused,
 				  const char *help __maybe_unused,
-				  void(*timer)(void *arg) __maybe_unused,
-				  void *arg __maybe_unused,
-				  int refresh __maybe_unused)
+				  struct hist_browser_timer *hbt __maybe_unused)
 {
 	return 0;
 }

tools/perf/util/machine.c

···
 #include "event.h"
 #include "machine.h"
 #include "map.h"
+#include "strlist.h"
 #include "thread.h"
 #include <stdbool.h>
+
+int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
+{
+	map_groups__init(&machine->kmaps);
+	RB_CLEAR_NODE(&machine->rb_node);
+	INIT_LIST_HEAD(&machine->user_dsos);
+	INIT_LIST_HEAD(&machine->kernel_dsos);
+
+	machine->threads = RB_ROOT;
+	INIT_LIST_HEAD(&machine->dead_threads);
+	machine->last_match = NULL;
+
+	machine->kmaps.machine = machine;
+	machine->pid = pid;
+
+	machine->root_dir = strdup(root_dir);
+	if (machine->root_dir == NULL)
+		return -ENOMEM;
+
+	if (pid != HOST_KERNEL_ID) {
+		struct thread *thread = machine__findnew_thread(machine, pid);
+		char comm[64];
+
+		if (thread == NULL)
+			return -ENOMEM;
+
+		snprintf(comm, sizeof(comm), "[guest/%d]", pid);
+		thread__set_comm(thread, comm);
+	}
+
+	return 0;
+}
+
+static void dsos__delete(struct list_head *dsos)
+{
+	struct dso *pos, *n;
+
+	list_for_each_entry_safe(pos, n, dsos, node) {
+		list_del(&pos->node);
+		dso__delete(pos);
+	}
+}
+
+void machine__exit(struct machine *machine)
+{
+	map_groups__exit(&machine->kmaps);
+	dsos__delete(&machine->user_dsos);
+	dsos__delete(&machine->kernel_dsos);
+	free(machine->root_dir);
+	machine->root_dir = NULL;
+}
+
+void machine__delete(struct machine *machine)
+{
+	machine__exit(machine);
+	free(machine);
+}
+
+struct machine *machines__add(struct rb_root *machines, pid_t pid,
+			      const char *root_dir)
+{
+	struct rb_node **p = &machines->rb_node;
+	struct rb_node *parent = NULL;
+	struct machine *pos, *machine = malloc(sizeof(*machine));
+
+	if (machine == NULL)
+		return NULL;
+
+	if (machine__init(machine, root_dir, pid) != 0) {
+		free(machine);
+		return NULL;
+	}
+
+	while (*p != NULL) {
+		parent = *p;
+		pos = rb_entry(parent, struct machine, rb_node);
+		if (pid < pos->pid)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+
+	rb_link_node(&machine->rb_node, parent, p);
+	rb_insert_color(&machine->rb_node, machines);
+
+	return machine;
+}
+
+struct machine *machines__find(struct rb_root *machines, pid_t pid)
+{
+	struct rb_node **p = &machines->rb_node;
+	struct rb_node *parent = NULL;
+	struct machine *machine;
+	struct machine *default_machine = NULL;
+
+	while (*p != NULL) {
+		parent = *p;
+		machine = rb_entry(parent, struct machine, rb_node);
+		if (pid < machine->pid)
+			p = &(*p)->rb_left;
+		else if (pid > machine->pid)
+			p = &(*p)->rb_right;
+		else
+			return machine;
+		if (!machine->pid)
+			default_machine = machine;
+	}
+
+	return default_machine;
+}
+
+struct machine *machines__findnew(struct rb_root *machines, pid_t pid)
+{
+	char path[PATH_MAX];
+	const char *root_dir = "";
+	struct machine *machine = machines__find(machines, pid);
+
+	if (machine && (machine->pid == pid))
+		goto out;
+
+	if ((pid != HOST_KERNEL_ID) &&
+	    (pid != DEFAULT_GUEST_KERNEL_ID) &&
+	    (symbol_conf.guestmount)) {
+		sprintf(path, "%s/%d", symbol_conf.guestmount, pid);
+		if (access(path, R_OK)) {
+			static struct strlist *seen;
+
+			if (!seen)
+				seen = strlist__new(true, NULL);
+
+			if (!strlist__has_entry(seen, path)) {
+				pr_err("Can't access file %s\n", path);
+				strlist__add(seen, path);
+			}
+			machine = NULL;
+			goto out;
+		}
+		root_dir = path;
+	}
+
+	machine = machines__add(machines, pid, root_dir);
+out:
+	return machine;
+}
+
+void machines__process(struct rb_root *machines,
+		       machine__process_t process, void *data)
+{
+	struct rb_node *nd;
+
+	for (nd = rb_first(machines); nd; nd = rb_next(nd)) {
+		struct machine *pos = rb_entry(nd, struct machine, rb_node);
+		process(pos, data);
+	}
+}
+
+char *machine__mmap_name(struct machine *machine, char *bf, size_t size)
+{
+	if (machine__is_host(machine))
+		snprintf(bf, size, "[%s]", "kernel.kallsyms");
+	else if (machine__is_default_guest(machine))
+		snprintf(bf, size, "[%s]", "guest.kernel.kallsyms");
+	else {
+		snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms",
+			 machine->pid);
+	}
+
+	return bf;
+}
+
+void machines__set_id_hdr_size(struct rb_root *machines, u16 id_hdr_size)
+{
+	struct rb_node *node;
+	struct machine *machine;
+
+	for (node = rb_first(machines); node; node = rb_next(node)) {
+		machine = rb_entry(node, struct machine, rb_node);
+		machine->id_hdr_size = id_hdr_size;
+	}
+
+	return;
+}
 
 static struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid,
 						bool create)
···
 static void machine__set_kernel_mmap_len(struct machine *machine,
 					 union perf_event *event)
 {
-	machine->vmlinux_maps[MAP__FUNCTION]->start = event->mmap.start;
-	machine->vmlinux_maps[MAP__FUNCTION]->end   = (event->mmap.start +
-						       event->mmap.len);
-	/*
-	 * Be a bit paranoid here, some perf.data file came with
-	 * a zero sized synthesized MMAP event for the kernel.
-	 */
-	if (machine->vmlinux_maps[MAP__FUNCTION]->end == 0)
-		machine->vmlinux_maps[MAP__FUNCTION]->end = ~0ULL;
+	int i;
+
+	for (i = 0; i < MAP__NR_TYPES; i++) {
+		machine->vmlinux_maps[i]->start = event->mmap.start;
+		machine->vmlinux_maps[i]->end   = (event->mmap.start +
+						   event->mmap.len);
+		/*
+		 * Be a bit paranoid here, some perf.data file came with
+		 * a zero sized synthesized MMAP event for the kernel.
+		 */
+		if (machine->vmlinux_maps[i]->end == 0)
+			machine->vmlinux_maps[i]->end = ~0ULL;
+	}
 }
 
 static int machine__process_kernel_mmap_event(struct machine *machine,

tools/perf/util/machine.h

···
 #define __PERF_MACHINE_H
 
 #include <sys/types.h>
+#include <linux/rbtree.h>
+#include "map.h"
 
+struct branch_stack;
+struct perf_evsel;
+struct perf_sample;
+struct symbol;
 struct thread;
-struct machine;
 union perf_event;
+
+/* Native host kernel uses -1 as pid index in machine */
+#define	HOST_KERNEL_ID			(-1)
+#define	DEFAULT_GUEST_KERNEL_ID		(0)
+
+struct machine {
+	struct rb_node	  rb_node;
+	pid_t		  pid;
+	u16		  id_hdr_size;
+	char		  *root_dir;
+	struct rb_root	  threads;
+	struct list_head  dead_threads;
+	struct thread	  *last_match;
+	struct list_head  user_dsos;
+	struct list_head  kernel_dsos;
+	struct map_groups kmaps;
+	struct map	  *vmlinux_maps[MAP__NR_TYPES];
+};
+
+static inline
+struct map *machine__kernel_map(struct machine *machine, enum map_type type)
+{
+	return machine->vmlinux_maps[type];
+}
 
 struct thread *machine__find_thread(struct machine *machine, pid_t pid);
 
···
 int machine__process_lost_event(struct machine *machine, union perf_event *event);
 int machine__process_mmap_event(struct machine *machine, union perf_event *event);
 int machine__process_event(struct machine *machine, union perf_event *event);
+
+typedef void (*machine__process_t)(struct machine *machine, void *data);
+
+void machines__process(struct rb_root *machines,
+		       machine__process_t process, void *data);
+
+struct machine *machines__add(struct rb_root *machines, pid_t pid,
+			      const char *root_dir);
+struct machine *machines__find_host(struct rb_root *machines);
+struct machine *machines__find(struct rb_root *machines, pid_t pid);
+struct machine *machines__findnew(struct rb_root *machines, pid_t pid);
+
+void machines__set_id_hdr_size(struct rb_root *machines, u16 id_hdr_size);
+char *machine__mmap_name(struct machine *machine, char *bf, size_t size);
+
+int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
+void machine__exit(struct machine *machine);
+void machine__delete(struct machine *machine);
+
+
+struct branch_info *machine__resolve_bstack(struct machine *machine,
+					    struct thread *thread,
+					    struct branch_stack *bs);
+int machine__resolve_callchain(struct machine *machine,
+			       struct perf_evsel *evsel,
+			       struct thread *thread,
+			       struct perf_sample *sample,
+			       struct symbol **parent);
+
+/*
+ * Default guest kernel is defined by parameter --guestkallsyms
+ * and --guestmodules
+ */
+static inline bool machine__is_default_guest(struct machine *machine)
+{
+	return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
+}
+
+static inline bool machine__is_host(struct machine *machine)
+{
+	return machine ? machine->pid == HOST_KERNEL_ID : false;
+}
+
+struct thread *machine__findnew_thread(struct machine *machine, pid_t pid);
+void machine__remove_thread(struct machine *machine, struct thread *th);
+
+size_t machine__fprintf(struct machine *machine, FILE *fp);
+
+static inline
+struct symbol *machine__find_kernel_symbol(struct machine *machine,
+					   enum map_type type, u64 addr,
+					   struct map **mapp,
+					   symbol_filter_t filter)
+{
+	return map_groups__find_symbol(&machine->kmaps, type, addr,
+				       mapp, filter);
+}
+
+static inline
+struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
+					     struct map **mapp,
+					     symbol_filter_t filter)
+{
+	return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
+					   mapp, filter);
+}
+
+static inline
+struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
+						     const char *name,
+						     struct map **mapp,
+						     symbol_filter_t filter)
+{
+	return map_groups__find_function_by_name(&machine->kmaps, name, mapp,
+						 filter);
+}
+
+struct map *machine__new_module(struct machine *machine, u64 start,
+				const char *filename);
+
+int machine__load_kallsyms(struct machine *machine, const char *filename,
+			   enum map_type type, symbol_filter_t filter);
+int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
+			       symbol_filter_t filter);
+
+size_t machine__fprintf_dsos_buildid(struct machine *machine,
+				     FILE *fp, bool with_hits);
+size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp);
+size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
+				      FILE *fp, bool with_hits);
+
+void machine__destroy_kernel_maps(struct machine *machine);
+int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
+int machine__create_kernel_maps(struct machine *machine);
+
+int machines__create_kernel_maps(struct rb_root *machines, pid_t pid);
+int machines__create_guest_kernel_maps(struct rb_root *machines);
+void machines__destroy_guest_kernel_maps(struct rb_root *machines);
+
+size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
 
 #endif /* __PERF_MACHINE_H */

tools/perf/util/map.c

···
 
 static inline int is_no_dso_memory(const char *filename)
 {
-	return !strcmp(filename, "[stack]") ||
+	return !strncmp(filename, "[stack", 6) ||
 	       !strcmp(filename, "[heap]");
 }
 
···
 	}
 
 	return NULL;
-}
-
-int machine__init(struct machine *self, const char *root_dir, pid_t pid)
-{
-	map_groups__init(&self->kmaps);
-	RB_CLEAR_NODE(&self->rb_node);
-	INIT_LIST_HEAD(&self->user_dsos);
-	INIT_LIST_HEAD(&self->kernel_dsos);
-
-	self->threads = RB_ROOT;
-	INIT_LIST_HEAD(&self->dead_threads);
-	self->last_match = NULL;
-
-	self->kmaps.machine = self;
-	self->pid	    = pid;
-	self->root_dir      = strdup(root_dir);
-	if (self->root_dir == NULL)
-		return -ENOMEM;
-
-	if (pid != HOST_KERNEL_ID) {
-		struct thread *thread = machine__findnew_thread(self, pid);
-		char comm[64];
-
-		if (thread == NULL)
-			return -ENOMEM;
-
-		snprintf(comm, sizeof(comm), "[guest/%d]", pid);
-		thread__set_comm(thread, comm);
-	}
-
-	return 0;
-}
-
-static void dsos__delete(struct list_head *self)
-{
-	struct dso *pos, *n;
-
-	list_for_each_entry_safe(pos, n, self, node) {
-		list_del(&pos->node);
-		dso__delete(pos);
-	}
-}
-
-void machine__exit(struct machine *self)
-{
-	map_groups__exit(&self->kmaps);
-	dsos__delete(&self->user_dsos);
-	dsos__delete(&self->kernel_dsos);
-	free(self->root_dir);
-	self->root_dir = NULL;
-}
-
-void machine__delete(struct machine *self)
-{
-	machine__exit(self);
-	free(self);
-}
-
-struct machine *machines__add(struct rb_root *self, pid_t pid,
-			      const char *root_dir)
-{
-	struct rb_node **p = &self->rb_node;
-	struct rb_node *parent = NULL;
-	struct machine *pos, *machine = malloc(sizeof(*machine));
-
-	if (!machine)
-		return NULL;
-
-	if (machine__init(machine, root_dir, pid) != 0) {
-		free(machine);
-		return NULL;
-	}
-
-	while (*p != NULL) {
-		parent = *p;
-		pos = rb_entry(parent, struct machine, rb_node);
-		if (pid < pos->pid)
-			p = &(*p)->rb_left;
-		else
-			p = &(*p)->rb_right;
-	}
-
-	rb_link_node(&machine->rb_node, parent, p);
-	rb_insert_color(&machine->rb_node, self);
-
-	return machine;
-}
-
-struct machine *machines__find(struct rb_root *self, pid_t pid)
-{
-	struct rb_node **p = &self->rb_node;
-	struct rb_node *parent = NULL;
-	struct machine *machine;
-	struct machine *default_machine = NULL;
-
-	while (*p != NULL) {
-		parent = *p;
-		machine = rb_entry(parent, struct machine, rb_node);
-		if (pid < machine->pid)
-			p = &(*p)->rb_left;
-		else if (pid > machine->pid)
-			p = &(*p)->rb_right;
-		else
-			return machine;
-		if (!machine->pid)
-			default_machine = machine;
-	}
-
-	return default_machine;
-}
-
-struct machine *machines__findnew(struct rb_root *self, pid_t pid)
-{
-	char path[PATH_MAX];
-	const char *root_dir = "";
-	struct machine *machine = machines__find(self, pid);
-
-	if (machine && (machine->pid == pid))
-		goto out;
-
-	if ((pid != HOST_KERNEL_ID) &&
-	    (pid != DEFAULT_GUEST_KERNEL_ID) &&
-	    (symbol_conf.guestmount)) {
-		sprintf(path, "%s/%d", symbol_conf.guestmount, pid);
-		if (access(path, R_OK)) {
-			static struct strlist *seen;
-
-			if (!seen)
-				seen = strlist__new(true, NULL);
-
-			if (!strlist__has_entry(seen, path)) {
-				pr_err("Can't access file %s\n", path);
-				strlist__add(seen, path);
-			}
-			machine = NULL;
-			goto out;
-		}
-		root_dir = path;
-	}
-
-	machine = machines__add(self, pid, root_dir);
-
-out:
-	return machine;
-}
-
-void machines__process(struct rb_root *self, machine__process_t process, void *data)
-{
-	struct rb_node *nd;
-
-	for (nd = rb_first(self); nd; nd = rb_next(nd)) {
-		struct machine *pos = rb_entry(nd, struct machine, rb_node);
-		process(pos, data);
-	}
-}
-
-char *machine__mmap_name(struct machine *self, char *bf, size_t size)
-{
-	if (machine__is_host(self))
-		snprintf(bf, size, "[%s]", "kernel.kallsyms");
-	else if (machine__is_default_guest(self))
-		snprintf(bf, size, "[%s]", "guest.kernel.kallsyms");
-	else
-		snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms", self->pid);
-
-	return bf;
-}
-
-void machines__set_id_hdr_size(struct rb_root *machines, u16 id_hdr_size)
-{
-	struct rb_node *node;
-	struct machine *machine;
-
-	for (node = rb_first(machines); node; node = rb_next(node)) {
-		machine = rb_entry(node, struct machine, rb_node);
-		machine->id_hdr_size = id_hdr_size;
-	}
-
-	return;
 }

tools/perf/util/map.h

···
 	struct machine	 *machine;
 };
 
-/* Native host kernel uses -1 as pid index in machine */
-#define	HOST_KERNEL_ID			(-1)
-#define	DEFAULT_GUEST_KERNEL_ID		(0)
-
-struct machine {
-	struct rb_node	  rb_node;
-	pid_t		  pid;
-	u16		  id_hdr_size;
-	char		  *root_dir;
-	struct rb_root	  threads;
-	struct list_head  dead_threads;
-	struct thread	  *last_match;
-	struct list_head  user_dsos;
-	struct list_head  kernel_dsos;
-	struct map_groups kmaps;
-	struct map	  *vmlinux_maps[MAP__NR_TYPES];
-};
-
-static inline
-struct map *machine__kernel_map(struct machine *self, enum map_type type)
-{
-	return self->vmlinux_maps[type];
-}
-
 static inline struct kmap *map__kmap(struct map *self)
 {
 	return (struct kmap *)(self + 1);
···
 size_t map_groups__fprintf(struct map_groups *mg, int verbose, FILE *fp);
 size_t map_groups__fprintf_maps(struct map_groups *mg, int verbose, FILE *fp);
 
-typedef void (*machine__process_t)(struct machine *self, void *data);
-
-void machines__process(struct rb_root *self, machine__process_t process, void *data);
-struct machine *machines__add(struct rb_root *self, pid_t pid,
-			      const char *root_dir);
-struct machine *machines__find_host(struct rb_root *self);
-struct machine *machines__find(struct rb_root *self, pid_t pid);
-struct machine *machines__findnew(struct rb_root *self, pid_t pid);
-void machines__set_id_hdr_size(struct rb_root *self, u16 id_hdr_size);
-char *machine__mmap_name(struct machine *self, char *bf, size_t size);
-int machine__init(struct machine *self, const char *root_dir, pid_t pid);
-void machine__exit(struct machine *self);
-void machine__delete(struct machine *self);
-
-struct perf_evsel;
-struct perf_sample;
-int machine__resolve_callchain(struct machine *machine,
-			       struct perf_evsel *evsel,
-			       struct thread *thread,
-			       struct perf_sample *sample,
-			       struct symbol **parent);
 int maps__set_kallsyms_ref_reloc_sym(struct map **maps, const char *symbol_name,
 				     u64 addr);
-
-/*
- * Default guest kernel is defined by parameter --guestkallsyms
- * and --guestmodules
- */
-static inline bool machine__is_default_guest(struct machine *self)
-{
-	return self ? self->pid == DEFAULT_GUEST_KERNEL_ID : false;
-}
-
-static inline bool machine__is_host(struct machine *self)
-{
-	return self ? self->pid == HOST_KERNEL_ID : false;
-}
 
 static inline void map_groups__insert(struct map_groups *mg, struct map *map)
 {
···
 					       struct map **mapp,
 					       symbol_filter_t filter);
 
-
-struct thread *machine__findnew_thread(struct machine *machine, pid_t pid);
-void machine__remove_thread(struct machine *machine, struct thread *th);
-
-size_t machine__fprintf(struct machine *machine, FILE *fp);
-
-static inline
-struct symbol *machine__find_kernel_symbol(struct machine *self,
-					   enum map_type type, u64 addr,
-					   struct map **mapp,
-					   symbol_filter_t filter)
-{
-	return map_groups__find_symbol(&self->kmaps, type, addr, mapp, filter);
-}
-
-static inline
-struct symbol *machine__find_kernel_function(struct machine *self, u64 addr,
-					     struct map **mapp,
-					     symbol_filter_t filter)
-{
-	return machine__find_kernel_symbol(self, MAP__FUNCTION, addr, mapp, filter);
-}
-
 static inline
 struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
 						 const char *name, struct map **mapp,
···
 	return map_groups__find_symbol_by_name(mg, MAP__FUNCTION, name, mapp, filter);
 }
 
-static inline
-struct symbol *machine__find_kernel_function_by_name(struct machine *self,
-						     const char *name,
-						     struct map **mapp,
-						     symbol_filter_t filter)
-{
-	return map_groups__find_function_by_name(&self->kmaps, name, mapp,
-						 filter);
-}
-
 int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
 				   int verbose, FILE *fp);
 
 struct map *map_groups__find_by_name(struct map_groups *mg,
 				     enum map_type type, const char *name);
-struct map *machine__new_module(struct machine *self, u64 start, const char *filename);
 
 void map_groups__flush(struct map_groups *mg);
 

tools/perf/util/parse-events.l

···
 num_hex		0x[a-fA-F0-9]+
 num_raw_hex	[a-fA-F0-9]+
 name		[a-zA-Z_*?][a-zA-Z0-9_*?]*
+name_minus	[a-zA-Z_*?][a-zA-Z0-9\-_*?]*
 modifier_event	[ukhpGH]{1,8}
 modifier_bp	[rwx]{1,3}
 
···
 branch_type		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
 ,			{ return ','; }
 "/"			{ BEGIN(INITIAL); return '/'; }
+{name_minus}		{ return str(yyscanner, PE_NAME); }
 }
 
 mem:			{ BEGIN(mem); return PE_PREFIX_MEM; }

tools/perf/util/session.h

···
 #include "hist.h"
 #include "event.h"
 #include "header.h"
+#include "machine.h"
 #include "symbol.h"
 #include "thread.h"
 #include <linux/rbtree.h>
···
 				    struct thread *thread,
 				    struct ip_callchain *chain,
 				    struct symbol **parent);
-
-struct branch_info *machine__resolve_bstack(struct machine *self,
-					    struct thread *thread,
-					    struct branch_stack *bs);
 
 bool perf_session__has_traces(struct perf_session *self, const char *msg);
 

tools/perf/util/sort.h

···
 struct hist_entry {
 	struct rb_node		rb_node_in;
 	struct rb_node		rb_node;
+	union {
+		struct list_head node;
+		struct list_head head;
+	} pairs;
 	struct he_stat		stat;
 	struct map_symbol	ms;
 	struct thread		*thread;
···
 	char			*srcline;
 	struct symbol		*parent;
 	unsigned long		position;
-	union {
-		struct hist_entry *pair;
-		struct rb_root	  sorted_chain;
-	};
+	struct rb_root		sorted_chain;
 	struct branch_info	*branch_info;
 	struct hists		*hists;
 	struct callchain_root	callchain[0];
 };
+
+static inline bool hist_entry__has_pairs(struct hist_entry *he)
+{
+	return !list_empty(&he->pairs.node);
+}
+
+static inline struct hist_entry *hist_entry__next_pair(struct hist_entry *he)
+{
+	if (hist_entry__has_pairs(he))
+		return list_entry(he->pairs.node.next, struct hist_entry, pairs.node);
+	return NULL;
+}
+
+static inline void hist__entry_add_pair(struct hist_entry *he,
+					struct hist_entry *pair)
+{
+	list_add_tail(&he->pairs.head, &pair->pairs.node);
+}
 
 enum sort_type {
 	SORT_PID,

tools/perf/util/symbol.c

···
 #include "build-id.h"
 #include "util.h"
 #include "debug.h"
+#include "machine.h"
 #include "symbol.h"
 #include "strlist.h"
 

tools/perf/util/symbol.h

···
 			   symbol_filter_t filter);
 int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map,
 		       symbol_filter_t filter);
-int machine__load_kallsyms(struct machine *machine, const char *filename,
-			   enum map_type type, symbol_filter_t filter);
-int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
-			       symbol_filter_t filter);
-
-size_t machine__fprintf_dsos_buildid(struct machine *machine,
-				     FILE *fp, bool with_hits);
-size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp);
-size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
-				      FILE *fp, bool with_hits);
 
 struct symbol *dso__find_symbol(struct dso *dso, enum map_type type,
 				u64 addr);
···
 int filename__read_debuglink(const char *filename, char *debuglink,
 			     size_t size);
 
-void machine__destroy_kernel_maps(struct machine *machine);
-int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
-int machine__create_kernel_maps(struct machine *machine);
-
-int machines__create_kernel_maps(struct rb_root *machines, pid_t pid);
-int machines__create_guest_kernel_maps(struct rb_root *machines);
-void machines__destroy_guest_kernel_maps(struct rb_root *machines);
-
 int symbol__init(void);
 void symbol__exit(void);
 void symbol__elf_init(void);
···
 size_t symbol__fprintf_symname(const struct symbol *sym, FILE *fp);
 size_t symbol__fprintf(struct symbol *sym, FILE *fp);
 bool symbol_type__is_a(char symbol_type, enum map_type map_type);
-
-size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
 
 int dso__test_data(void);
 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,