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

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

   - Add branch type profiling/tracing support. (Jin Yao)

   - Add the PERF_SAMPLE_PHYS_ADDR ABI to allow the tracing/profiling of
     physical memory addresses, where the PMU supports it. (Kan Liang)

   - Export some PMU capability details in the new
     /sys/bus/event_source/devices/cpu/caps/ sysfs directory. (Andi
     Kleen)

   - Aux data fixes and updates (Will Deacon)

   - kprobes fixes and updates (Masami Hiramatsu)

   - AMD uncore PMU driver fixes and updates (Janakarajan Natarajan)

  On the tooling side, here's a (limited!) list of highlights - there
  were many other changes that I could not list, see the shortlog and
  git history for details:

  UI improvements:

   - Implement a visual marker for fused x86 instructions in the
     annotate TUI browser, available now in 'perf report', more work
     needed to have it available as well in 'perf top' (Jin Yao)

     Further explanation from one of Jin's patches:

             │   ┌──cmpl   $0x0,argp_program_version_hook
       81.93 │   ├──je     20
             │   │  lock   cmpxchg %esi,0x38a9a4(%rip)
             │   │↓ jne    29
             │   │↓ jmp    43
       11.47 │20:└─→cmpxch %esi,0x38a999(%rip)

     That means the cmpl+je is a fused instruction pair and they should
     be considered together.

   - Record the branch type and then show statistics and info about in
     callchain entries (Jin Yao)

     Example from one of Jin's patches:

        # perf record -g -j any,save_type
        # perf report --branch-history --stdio --no-children

        38.50%  div.c:45                [.] main                    div
                |
                ---main div.c:42 (RET CROSS_2M cycles:2)
                   compute_flag div.c:28 (cycles:2)
                   compute_flag div.c:27 (RET CROSS_2M cycles:1)
                   rand rand.c:28 (cycles:1)
                   rand rand.c:28 (RET CROSS_2M cycles:1)
                   __random random.c:298 (cycles:1)
                   __random random.c:297 (COND_BWD CROSS_2M cycles:1)
                   __random random.c:295 (cycles:1)
                   __random random.c:295 (COND_BWD CROSS_2M cycles:1)
                   __random random.c:295 (cycles:1)
                   __random random.c:295 (RET CROSS_2M cycles:9)

  namespaces support:

   - Add initial support for namespaces, using setns to access files in
     namespaces, grabbing their build-ids, etc. (Krister Johansen)

  perf trace enhancements:

   - Beautify pkey_{alloc,free,mprotect} arguments in 'perf trace'
     (Arnaldo Carvalho de Melo)

   - Add initial 'clone' syscall args beautifier in 'perf trace'
     (Arnaldo Carvalho de Melo)

   - Ignore 'fd' and 'offset' args for MAP_ANONYMOUS in 'perf trace'
     (Arnaldo Carvalho de Melo)

   - Beautifiers for the 'cmd' arg of several ioctl types, including:
     sound, DRM, KVM, vhost virtio and perf_events. (Arnaldo Carvalho de
     Melo)

   - Add PERF_SAMPLE_CALLCHAIN and PERF_RECORD_MMAP[2] to 'perf data'
     CTF conversion, allowing CTF trace visualization tools to show
     callchains and to resolve symbols (Geneviève Bastien)

   - Beautify the fcntl syscall, which is an interesting one in the
     sense that infrastructure had to be put in place to change the
     formatters of some arguments according to the value in a previous
     one, i.e. cmd dictates how arg and the syscall return will be
     formatted. (Arnaldo Carvalho de Melo

  perf stat enhancements:

   - Use group read for event groups in 'perf stat', reducing overhead
     when groups are defined in the event specification, i.e. when using
     {} to enclose a list of events, asking them to be read at the same
     time, e.g.: "perf stat -e '{cycles,instructions}'" (Jiri Olsa)

  pipe mode improvements:

   - Process tracing data in 'perf annotate' pipe mode (David
     Carrillo-Cisneros)

   - Add header record types to pipe-mode, now this command:

        $ perf record -o - -e cycles sleep 1 | perf report --stdio --header

     Will show the same as in non-pipe mode, i.e. involving a perf.data
     file (David Carrillo-Cisneros)

  Vendor specific hardware event support updates/enhancements:

   - Update POWER9 vendor events tables (Sukadev Bhattiprolu)

   - Add POWER9 PMU events Sukadev (Bhattiprolu)

   - Support additional POWER8+ PVR in PMU mapfile (Shriya)

   - Add Skylake server uncore JSON vendor events (Andi Kleen)

   - Support exporting Intel PT data to sqlite3 with python perf
     scripts, this is in addition to the postgresql support that was
     already there (Adrian Hunter)"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (253 commits)
  perf symbols: Fix plt entry calculation for ARM and AARCH64
  perf probe: Fix kprobe blacklist checking condition
  perf/x86: Fix caps/ for !Intel
  perf/core, x86: Add PERF_SAMPLE_PHYS_ADDR
  perf/core, pt, bts: Get rid of itrace_started
  perf trace beauty: Beautify pkey_{alloc,free,mprotect} arguments
  tools headers: Sync cpu features kernel ABI headers with tooling headers
  perf tools: Pass full path of FEATURES_DUMP
  perf tools: Robustify detection of clang binary
  tools lib: Allow external definition of CC, AR and LD
  perf tools: Allow external definition of flex and bison binary names
  tools build tests: Don't hardcode gcc name
  perf report: Group stat values on global event id
  perf values: Zero value buffers
  perf values: Fix allocation check
  perf values: Fix thread index bug
  perf report: Add dump_read function
  perf record: Set read_format for inherit_stat
  perf c2c: Fix remote HITM detection for Skylake
  perf tools: Fix static build with newer toolchains
  ...

68 files changed, 2690 insertions, 1005 deletions

diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 79dea95a7f68..94518c1bf8b6 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -22,6 +22,7 @@ libperf-y += rbtree.o
 libperf-y += libstring.o
 libperf-y += bitmap.o
 libperf-y += hweight.o
+libperf-y += smt.o
 libperf-y += quote.o
 libperf-y += strbuf.o
 libperf-y += string.o
@@ -93,6 +94,7 @@ libperf-y += drv_configs.o
 libperf-y += units.o
 libperf-y += time-utils.o
 libperf-y += expr-bison.o
+libperf-y += branch.o
 
 libperf-$(CONFIG_LIBBPF) += bpf-loader.o
 libperf-$(CONFIG_BPF_PROLOGUE) += bpf-prologue.o
@@ -104,6 +106,10 @@ ifndef CONFIG_LIBELF
 libperf-y += symbol-minimal.o
 endif
 
+ifndef CONFIG_SETNS
+libperf-y += setns.o
+endif
+
 libperf-$(CONFIG_DWARF) += probe-finder.o
 libperf-$(CONFIG_DWARF) += dwarf-aux.o
 libperf-$(CONFIG_DWARF) += dwarf-regs.o
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index be1caabb9290..4397a8b6e6cd 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -47,7 +47,12 @@ struct arch {
 	bool		sorted_instructions;
 	bool		initialized;
 	void		*priv;
+	unsigned int	model;
+	unsigned int	family;
 	int		(*init)(struct arch *arch);
+	bool		(*ins_is_fused)(struct arch *arch, const char *ins1,
+					const char *ins2);
+	int		(*cpuid_parse)(struct arch *arch, char *cpuid);
 	struct		{
 		char comment_char;
 		char skip_functions_char;
@@ -129,6 +134,8 @@ static struct arch architectures[] = {
 		.name = "x86",
 		.instructions = x86__instructions,
 		.nr_instructions = ARRAY_SIZE(x86__instructions),
+		.ins_is_fused = x86__ins_is_fused,
+		.cpuid_parse = x86__cpuid_parse,
 		.objdump =  {
 			.comment_char = '#',
 		},
@@ -171,6 +178,14 @@ int ins__scnprintf(struct ins *ins, char *bf, size_t size,
 	return ins__raw_scnprintf(ins, bf, size, ops);
 }
 
+bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
+{
+	if (!arch || !arch->ins_is_fused)
+		return false;
+
+	return arch->ins_is_fused(arch, ins1, ins2);
+}
+
 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map *map)
 {
 	char *endptr, *tok, *name;
@@ -502,6 +517,11 @@ bool ins__is_ret(const struct ins *ins)
 	return ins->ops == &ret_ops;
 }
 
+bool ins__is_lock(const struct ins *ins)
+{
+	return ins->ops == &lock_ops;
+}
+
 static int ins__key_cmp(const void *name, const void *insp)
 {
 	const struct ins *ins = insp;
@@ -590,10 +610,10 @@ int symbol__alloc_hist(struct symbol *sym)
 	size_t sizeof_sym_hist;
 
 	/* Check for overflow when calculating sizeof_sym_hist */
-	if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
+	if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
 		return -1;
 
-	sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
+	sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
 
 	/* Check for overflow in zalloc argument */
 	if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
@@ -677,7 +697,8 @@ static int __symbol__account_cycles(struct annotation *notes,
 }
 
 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
-				      struct annotation *notes, int evidx, u64 addr)
+				      struct annotation *notes, int evidx, u64 addr,
+				      struct perf_sample *sample)
 {
 	unsigned offset;
 	struct sym_hist *h;
@@ -693,12 +714,15 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 
 	offset = addr - sym->start;
 	h = annotation__histogram(notes, evidx);
-	h->sum++;
-	h->addr[offset]++;
+	h->nr_samples++;
+	h->addr[offset].nr_samples++;
+	h->period += sample->period;
+	h->addr[offset].period += sample->period;
 
 	pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
-		  ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
-		  addr, addr - sym->start, evidx, h->addr[offset]);
+		  ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
+		  sym->start, sym->name, addr, addr - sym->start, evidx,
+		  h->addr[offset].nr_samples, h->addr[offset].period);
 	return 0;
 }
 
@@ -718,7 +742,8 @@ static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles
 }
 
 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
-				    int evidx, u64 addr)
+				    int evidx, u64 addr,
+				    struct perf_sample *sample)
 {
 	struct annotation *notes;
 
@@ -727,7 +752,7 @@ static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 	notes = symbol__get_annotation(sym, false);
 	if (notes == NULL)
 		return -ENOMEM;
-	return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
+	return __symbol__inc_addr_samples(sym, map, notes, evidx, addr, sample);
 }
 
 static int symbol__account_cycles(u64 addr, u64 start,
@@ -791,14 +816,16 @@ int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
 	return err;
 }
 
-int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
+int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
+				 int evidx)
 {
-	return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
+	return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr, sample);
 }
 
-int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
+int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
+				 int evidx, u64 ip)
 {
-	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
+	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip, sample);
 }
 
 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map *map)
@@ -908,11 +935,12 @@ struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disa
 }
 
 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
-			    s64 end, const char **path, u64 *nr_samples)
+			    s64 end, const char **path, struct sym_hist_entry *sample)
 {
 	struct source_line *src_line = notes->src->lines;
 	double percent = 0.0;
-	*nr_samples = 0;
+
+	sample->nr_samples = sample->period = 0;
 
 	if (src_line) {
 		size_t sizeof_src_line = sizeof(*src_line) +
@@ -926,19 +954,24 @@ double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
 				*path = src_line->path;
 
 			percent += src_line->samples[evidx].percent;
-			*nr_samples += src_line->samples[evidx].nr;
+			sample->nr_samples += src_line->samples[evidx].nr;
 			offset++;
 		}
 	} else {
 		struct sym_hist *h = annotation__histogram(notes, evidx);
 		unsigned int hits = 0;
+		u64 period = 0;
 
-		while (offset < end)
-			hits += h->addr[offset++];
+		while (offset < end) {
+			hits   += h->addr[offset].nr_samples;
+			period += h->addr[offset].period;
+			++offset;
+		}
 
-		if (h->sum) {
-			*nr_samples = hits;
-			percent = 100.0 * hits / h->sum;
+		if (h->nr_samples) {
+			sample->period	   = period;
+			sample->nr_samples = hits;
+			percent = 100.0 * hits / h->nr_samples;
 		}
 	}
 
@@ -1037,10 +1070,10 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
 
 	if (dl->offset != -1) {
 		const char *path = NULL;
-		u64 nr_samples;
 		double percent, max_percent = 0.0;
 		double *ppercents = &percent;
-		u64 *psamples = &nr_samples;
+		struct sym_hist_entry sample;
+		struct sym_hist_entry *psamples = &sample;
 		int i, nr_percent = 1;
 		const char *color;
 		struct annotation *notes = symbol__annotation(sym);
@@ -1054,7 +1087,7 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
 		if (perf_evsel__is_group_event(evsel)) {
 			nr_percent = evsel->nr_members;
 			ppercents = calloc(nr_percent, sizeof(double));
-			psamples = calloc(nr_percent, sizeof(u64));
+			psamples = calloc(nr_percent, sizeof(struct sym_hist_entry));
 			if (ppercents == NULL || psamples == NULL) {
 				return -1;
 			}
@@ -1065,10 +1098,10 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
 					notes->src->lines ? i : evsel->idx + i,
 					offset,
 					next ? next->offset : (s64) len,
-					&path, &nr_samples);
+					&path, &sample);
 
 			ppercents[i] = percent;
-			psamples[i] = nr_samples;
+			psamples[i] = sample;
 			if (percent > max_percent)
 				max_percent = percent;
 		}
@@ -1106,12 +1139,15 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
 
 		for (i = 0; i < nr_percent; i++) {
 			percent = ppercents[i];
-			nr_samples = psamples[i];
+			sample = psamples[i];
 			color = get_percent_color(percent);
 
 			if (symbol_conf.show_total_period)
+				color_fprintf(stdout, color, " %11" PRIu64,
+					      sample.period);
+			else if (symbol_conf.show_nr_samples)
 				color_fprintf(stdout, color, " %7" PRIu64,
-					      nr_samples);
+					      sample.nr_samples);
 			else
 				color_fprintf(stdout, color, " %7.2f", percent);
 		}
@@ -1127,13 +1163,13 @@ static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 st
 		if (ppercents != &percent)
 			free(ppercents);
 
-		if (psamples != &nr_samples)
+		if (psamples != &sample)
 			free(psamples);
 
 	} else if (max_lines && printed >= max_lines)
 		return 1;
 	else {
-		int width = 8;
+		int width = symbol_conf.show_total_period ? 12 : 8;
 
 		if (queue)
 			return -1;
@@ -1327,7 +1363,7 @@ static int dso__disassemble_filename(struct dso *dso, char *filename, size_t fil
 	    !dso__is_kcore(dso))
 		return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
 
-	build_id_filename = dso__build_id_filename(dso, NULL, 0);
+	build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
 	if (build_id_filename) {
 		__symbol__join_symfs(filename, filename_size, build_id_filename);
 		free(build_id_filename);
@@ -1381,7 +1417,7 @@ static const char *annotate__norm_arch(const char *arch_name)
 
 int symbol__disassemble(struct symbol *sym, struct map *map,
 			const char *arch_name, size_t privsize,
-			struct arch **parch)
+			struct arch **parch, char *cpuid)
 {
 	struct dso *dso = map->dso;
 	char command[PATH_MAX * 2];
@@ -1418,6 +1454,9 @@ int symbol__disassemble(struct symbol *sym, struct map *map,
 		}
 	}
 
+	if (arch->cpuid_parse && cpuid)
+		arch->cpuid_parse(arch, cpuid);
+
 	pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
 		 symfs_filename, sym->name, map->unmap_ip(map, sym->start),
 		 map->unmap_ip(map, sym->end));
@@ -1648,19 +1687,19 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 	struct sym_hist *h = annotation__histogram(notes, evidx);
 	struct rb_root tmp_root = RB_ROOT;
 	int nr_pcnt = 1;
-	u64 h_sum = h->sum;
+	u64 nr_samples = h->nr_samples;
 	size_t sizeof_src_line = sizeof(struct source_line);
 
 	if (perf_evsel__is_group_event(evsel)) {
 		for (i = 1; i < evsel->nr_members; i++) {
 			h = annotation__histogram(notes, evidx + i);
-			h_sum += h->sum;
+			nr_samples += h->nr_samples;
 		}
 		nr_pcnt = evsel->nr_members;
 		sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
 	}
 
-	if (!h_sum)
+	if (!nr_samples)
 		return 0;
 
 	src_line = notes->src->lines = calloc(len, sizeof_src_line);
@@ -1670,7 +1709,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 	start = map__rip_2objdump(map, sym->start);
 
 	for (i = 0; i < len; i++) {
-		u64 offset, nr_samples;
+		u64 offset;
 		double percent_max = 0.0;
 
 		src_line->nr_pcnt = nr_pcnt;
@@ -1679,9 +1718,9 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 			double percent = 0.0;
 
 			h = annotation__histogram(notes, evidx + k);
-			nr_samples = h->addr[i];
-			if (h->sum)
-				percent = 100.0 * nr_samples / h->sum;
+			nr_samples = h->addr[i].nr_samples;
+			if (h->nr_samples)
+				percent = 100.0 * nr_samples / h->nr_samples;
 
 			if (percent > percent_max)
 				percent_max = percent;
@@ -1750,10 +1789,10 @@ static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
 	u64 len = symbol__size(sym), offset;
 
 	for (offset = 0; offset < len; ++offset)
-		if (h->addr[offset] != 0)
+		if (h->addr[offset].nr_samples != 0)
 			printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
-			       sym->start + offset, h->addr[offset]);
-	printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
+			       sym->start + offset, h->addr[offset].nr_samples);
+	printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
 }
 
 int symbol__annotate_printf(struct symbol *sym, struct map *map,
@@ -1771,7 +1810,7 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
 	int printed = 2, queue_len = 0;
 	int more = 0;
 	u64 len;
-	int width = 8;
+	int width = symbol_conf.show_total_period ? 12 : 8;
 	int graph_dotted_len;
 
 	filename = strdup(dso->long_name);
@@ -1789,7 +1828,9 @@ int symbol__annotate_printf(struct symbol *sym, struct map *map,
 		width *= evsel->nr_members;
 
 	graph_dotted_len = printf(" %-*.*s|	Source code & Disassembly of %s for %s (%" PRIu64 " samples)\n",
-	       width, width, "Percent", d_filename, evsel_name, h->sum);
+				  width, width, symbol_conf.show_total_period ? "Period" :
+				  symbol_conf.show_nr_samples ? "Samples" : "Percent",
+				  d_filename, evsel_name, h->nr_samples);
 
 	printf("%-*.*s----\n",
 	       graph_dotted_len, graph_dotted_len, graph_dotted_line);
@@ -1853,10 +1894,10 @@ void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
 	struct sym_hist *h = annotation__histogram(notes, evidx);
 	int len = symbol__size(sym), offset;
 
-	h->sum = 0;
+	h->nr_samples = 0;
 	for (offset = 0; offset < len; ++offset) {
-		h->addr[offset] = h->addr[offset] * 7 / 8;
-		h->sum += h->addr[offset];
+		h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
+		h->nr_samples += h->addr[offset].nr_samples;
 	}
 }
 
@@ -1907,7 +1948,7 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
 	u64 len;
 
 	if (symbol__disassemble(sym, map, perf_evsel__env_arch(evsel),
-				0, NULL) < 0)
+				0, NULL, NULL) < 0)
 		return -1;
 
 	len = symbol__size(sym);
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 21055034aedd..9ce575c25fd9 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -52,7 +52,9 @@ struct ins_ops {
 bool ins__is_jump(const struct ins *ins);
 bool ins__is_call(const struct ins *ins);
 bool ins__is_ret(const struct ins *ins);
+bool ins__is_lock(const struct ins *ins);
 int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops);
+bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2);
 
 struct annotation;
 
@@ -72,16 +74,22 @@ static inline bool disasm_line__has_offset(const struct disasm_line *dl)
 	return dl->ops.target.offset_avail;
 }
 
+struct sym_hist_entry {
+	u64		nr_samples;
+	u64		period;
+};
+
 void disasm_line__free(struct disasm_line *dl);
 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos);
 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
 size_t disasm__fprintf(struct list_head *head, FILE *fp);
 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
-			    s64 end, const char **path, u64 *nr_samples);
+			    s64 end, const char **path, struct sym_hist_entry *sample);
 
 struct sym_hist {
-	u64		sum;
-	u64		addr[0];
+	u64		      nr_samples;
+	u64		      period;
+	struct sym_hist_entry addr[0];
 };
 
 struct cyc_hist {
@@ -147,20 +155,22 @@ static inline struct annotation *symbol__annotation(struct symbol *sym)
 	return (void *)sym - symbol_conf.priv_size;
 }
 
-int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx);
+int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
+				 int evidx);
 
 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
 				    struct addr_map_symbol *start,
 				    unsigned cycles);
 
-int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
+int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
+				 int evidx, u64 addr);
 
 int symbol__alloc_hist(struct symbol *sym);
 void symbol__annotate_zero_histograms(struct symbol *sym);
 
 int symbol__disassemble(struct symbol *sym, struct map *map,
 			const char *arch_name, size_t privsize,
-			struct arch **parch);
+			struct arch **parch, char *cpuid);
 
 enum symbol_disassemble_errno {
 	SYMBOL_ANNOTATE_ERRNO__SUCCESS		= 0,
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 4bd2d1d882af..4a1264c66101 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1246,7 +1246,7 @@ int bpf__config_obj(struct bpf_object *obj,
 	if (!obj || !term || !term->config)
 		return -EINVAL;
 
-	if (!prefixcmp(term->config, "map:")) {
+	if (strstarts(term->config, "map:")) {
 		key_scan_pos = sizeof("map:") - 1;
 		err = bpf__obj_config_map(obj, term, evlist, &key_scan_pos);
 		goto out;
diff --git a/tools/perf/util/bpf-prologue.c b/tools/perf/util/bpf-prologue.c
index 1356220a9f1b..827f9140f3b8 100644
--- a/tools/perf/util/bpf-prologue.c
+++ b/tools/perf/util/bpf-prologue.c
@@ -58,6 +58,46 @@ check_pos(struct bpf_insn_pos *pos)
 	return 0;
 }
 
+/*
+ * Convert type string (u8/u16/u32/u64/s8/s16/s32/s64 ..., see
+ * Documentation/trace/kprobetrace.txt) to size field of BPF_LDX_MEM
+ * instruction (BPF_{B,H,W,DW}).
+ */
+static int
+argtype_to_ldx_size(const char *type)
+{
+	int arg_size = type ? atoi(&type[1]) : 64;
+
+	switch (arg_size) {
+	case 8:
+		return BPF_B;
+	case 16:
+		return BPF_H;
+	case 32:
+		return BPF_W;
+	case 64:
+	default:
+		return BPF_DW;
+	}
+}
+
+static const char *
+insn_sz_to_str(int insn_sz)
+{
+	switch (insn_sz) {
+	case BPF_B:
+		return "BPF_B";
+	case BPF_H:
+		return "BPF_H";
+	case BPF_W:
+		return "BPF_W";
+	case BPF_DW:
+		return "BPF_DW";
+	default:
+		return "UNKNOWN";
+	}
+}
+
 /* Give it a shorter name */
 #define ins(i, p) append_insn((i), (p))
 
@@ -258,9 +298,14 @@ gen_prologue_slowpath(struct bpf_insn_pos *pos,
 	}
 
 	/* Final pass: read to registers */
-	for (i = 0; i < nargs; i++)
-		ins(BPF_LDX_MEM(BPF_DW, BPF_PROLOGUE_START_ARG_REG + i,
+	for (i = 0; i < nargs; i++) {
+		int insn_sz = (args[i].ref) ? argtype_to_ldx_size(args[i].type) : BPF_DW;
+
+		pr_debug("prologue: load arg %d, insn_sz is %s\n",
+			 i, insn_sz_to_str(insn_sz));
+		ins(BPF_LDX_MEM(insn_sz, BPF_PROLOGUE_START_ARG_REG + i,
 				BPF_REG_FP, -BPF_REG_SIZE * (i + 1)), pos);
+	}
 
 	ins(BPF_JMP_IMM(BPF_JA, BPF_REG_0, 0, JMP_TO_SUCCESS_CODE), pos);
 
diff --git a/tools/perf/util/branch.c b/tools/perf/util/branch.c
new file mode 100644
index 000000000000..a4fce2729e50
--- /dev/null
+++ b/tools/perf/util/branch.c
@@ -0,0 +1,147 @@
+#include "perf.h"
+#include "util/util.h"
+#include "util/debug.h"
+#include "util/branch.h"
+
+static bool cross_area(u64 addr1, u64 addr2, int size)
+{
+	u64 align1, align2;
+
+	align1 = addr1 & ~(size - 1);
+	align2 = addr2 & ~(size - 1);
+
+	return (align1 != align2) ? true : false;
+}
+
+#define AREA_4K		4096
+#define AREA_2M		(2 * 1024 * 1024)
+
+void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
+		       u64 from, u64 to)
+{
+	if (flags->type == PERF_BR_UNKNOWN || from == 0)
+		return;
+
+	st->counts[flags->type]++;
+
+	if (flags->type == PERF_BR_COND) {
+		if (to > from)
+			st->cond_fwd++;
+		else
+			st->cond_bwd++;
+	}
+
+	if (cross_area(from, to, AREA_2M))
+		st->cross_2m++;
+	else if (cross_area(from, to, AREA_4K))
+		st->cross_4k++;
+}
+
+const char *branch_type_name(int type)
+{
+	const char *branch_names[PERF_BR_MAX] = {
+		"N/A",
+		"COND",
+		"UNCOND",
+		"IND",
+		"CALL",
+		"IND_CALL",
+		"RET",
+		"SYSCALL",
+		"SYSRET",
+		"COND_CALL",
+		"COND_RET"
+	};
+
+	if (type >= 0 && type < PERF_BR_MAX)
+		return branch_names[type];
+
+	return NULL;
+}
+
+void branch_type_stat_display(FILE *fp, struct branch_type_stat *st)
+{
+	u64 total = 0;
+	int i;
+
+	for (i = 0; i < PERF_BR_MAX; i++)
+		total += st->counts[i];
+
+	if (total == 0)
+		return;
+
+	fprintf(fp, "\n#");
+	fprintf(fp, "\n# Branch Statistics:");
+	fprintf(fp, "\n#");
+
+	if (st->cond_fwd > 0) {
+		fprintf(fp, "\n%8s: %5.1f%%",
+			"COND_FWD",
+			100.0 * (double)st->cond_fwd / (double)total);
+	}
+
+	if (st->cond_bwd > 0) {
+		fprintf(fp, "\n%8s: %5.1f%%",
+			"COND_BWD",
+			100.0 * (double)st->cond_bwd / (double)total);
+	}
+
+	if (st->cross_4k > 0) {
+		fprintf(fp, "\n%8s: %5.1f%%",
+			"CROSS_4K",
+			100.0 * (double)st->cross_4k / (double)total);
+	}
+
+	if (st->cross_2m > 0) {
+		fprintf(fp, "\n%8s: %5.1f%%",
+			"CROSS_2M",
+			100.0 * (double)st->cross_2m / (double)total);
+	}
+
+	for (i = 0; i < PERF_BR_MAX; i++) {
+		if (st->counts[i] > 0)
+			fprintf(fp, "\n%8s: %5.1f%%",
+				branch_type_name(i),
+				100.0 *
+				(double)st->counts[i] / (double)total);
+	}
+}
+
+static int count_str_scnprintf(int idx, const char *str, char *bf, int size)
+{
+	return scnprintf(bf, size, "%s%s", (idx) ? " " : " (", str);
+}
+
+int branch_type_str(struct branch_type_stat *st, char *bf, int size)
+{
+	int i, j = 0, printed = 0;
+	u64 total = 0;
+
+	for (i = 0; i < PERF_BR_MAX; i++)
+		total += st->counts[i];
+
+	if (total == 0)
+		return 0;
+
+	if (st->cond_fwd > 0)
+		printed += count_str_scnprintf(j++, "COND_FWD", bf + printed, size - printed);
+
+	if (st->cond_bwd > 0)
+		printed += count_str_scnprintf(j++, "COND_BWD", bf + printed, size - printed);
+
+	for (i = 0; i < PERF_BR_MAX; i++) {
+		if (i == PERF_BR_COND)
+			continue;
+
+		if (st->counts[i] > 0)
+			printed += count_str_scnprintf(j++, branch_type_name(i), bf + printed, size - printed);
+	}
+
+	if (st->cross_4k > 0)
+		printed += count_str_scnprintf(j++, "CROSS_4K", bf + printed, size - printed);
+
+	if (st->cross_2m > 0)
+		printed += count_str_scnprintf(j++, "CROSS_2M", bf + printed, size - printed);
+
+	return printed;
+}
diff --git a/tools/perf/util/branch.h b/tools/perf/util/branch.h
new file mode 100644
index 000000000000..1e3c7c5cdc63
--- /dev/null
+++ b/tools/perf/util/branch.h
@@ -0,0 +1,25 @@
+#ifndef _PERF_BRANCH_H
+#define _PERF_BRANCH_H 1
+
+#include <stdint.h>
+#include "../perf.h"
+
+struct branch_type_stat {
+	bool	branch_to;
+	u64	counts[PERF_BR_MAX];
+	u64	cond_fwd;
+	u64	cond_bwd;
+	u64	cross_4k;
+	u64	cross_2m;
+};
+
+struct branch_flags;
+
+void branch_type_count(struct branch_type_stat *st, struct branch_flags *flags,
+		       u64 from, u64 to);
+
+const char *branch_type_name(int type);
+void branch_type_stat_display(FILE *fp, struct branch_type_stat *st);
+int branch_type_str(struct branch_type_stat *st, char *bf, int bfsize);
+
+#endif /* _PERF_BRANCH_H */
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index e0148b081bdf..c1a06fcd7e70 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -243,12 +243,15 @@ static bool build_id_cache__valid_id(char *sbuild_id)
 	return result;
 }
 
-static const char *build_id_cache__basename(bool is_kallsyms, bool is_vdso)
+static const char *build_id_cache__basename(bool is_kallsyms, bool is_vdso,
+					    bool is_debug)
 {
-	return is_kallsyms ? "kallsyms" : (is_vdso ? "vdso" : "elf");
+	return is_kallsyms ? "kallsyms" : (is_vdso ? "vdso" : (is_debug ?
+	    "debug" : "elf"));
 }
 
-char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size)
+char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
+			     bool is_debug)
 {
 	bool is_kallsyms = dso__is_kallsyms((struct dso *)dso);
 	bool is_vdso = dso__is_vdso((struct dso *)dso);
@@ -270,7 +273,8 @@ char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size)
 		ret = asnprintf(&bf, size, "%s", linkname);
 	else
 		ret = asnprintf(&bf, size, "%s/%s", linkname,
-			 build_id_cache__basename(is_kallsyms, is_vdso));
+			 build_id_cache__basename(is_kallsyms, is_vdso,
+						  is_debug));
 	if (ret < 0 || (!alloc && size < (unsigned int)ret))
 		bf = NULL;
 	free(linkname);
@@ -285,7 +289,7 @@ char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size)
 		else
 
 static int write_buildid(const char *name, size_t name_len, u8 *build_id,
-			 pid_t pid, u16 misc, int fd)
+			 pid_t pid, u16 misc, struct feat_fd *fd)
 {
 	int err;
 	struct build_id_event b;
@@ -300,14 +304,15 @@ static int write_buildid(const char *name, size_t name_len, u8 *build_id,
 	b.header.misc = misc;
 	b.header.size = sizeof(b) + len;
 
-	err = writen(fd, &b, sizeof(b));
+	err = do_write(fd, &b, sizeof(b));
 	if (err < 0)
 		return err;
 
 	return write_padded(fd, name, name_len + 1, len);
 }
 
-static int machine__write_buildid_table(struct machine *machine, int fd)
+static int machine__write_buildid_table(struct machine *machine,
+					struct feat_fd *fd)
 {
 	int err = 0;
 	char nm[PATH_MAX];
@@ -352,7 +357,8 @@ static int machine__write_buildid_table(struct machine *machine, int fd)
 	return err;
 }
 
-int perf_session__write_buildid_table(struct perf_session *session, int fd)
+int perf_session__write_buildid_table(struct perf_session *session,
+				      struct feat_fd *fd)
 {
 	struct rb_node *nd;
 	int err = machine__write_buildid_table(&session->machines.host, fd);
@@ -534,13 +540,14 @@ char *build_id_cache__complement(const char *incomplete_sbuild_id)
 }
 
 char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
-			       bool is_kallsyms, bool is_vdso)
+			       struct nsinfo *nsi, bool is_kallsyms,
+			       bool is_vdso)
 {
 	char *realname = (char *)name, *filename;
 	bool slash = is_kallsyms || is_vdso;
 
 	if (!slash) {
-		realname = realpath(name, NULL);
+		realname = nsinfo__realpath(name, nsi);
 		if (!realname)
 			return NULL;
 	}
@@ -556,13 +563,13 @@ char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
 	return filename;
 }
 
-int build_id_cache__list_build_ids(const char *pathname,
+int build_id_cache__list_build_ids(const char *pathname, struct nsinfo *nsi,
 				   struct strlist **result)
 {
 	char *dir_name;
 	int ret = 0;
 
-	dir_name = build_id_cache__cachedir(NULL, pathname, false, false);
+	dir_name = build_id_cache__cachedir(NULL, pathname, nsi, false, false);
 	if (!dir_name)
 		return -ENOMEM;
 
@@ -576,16 +583,20 @@ int build_id_cache__list_build_ids(const char *pathname,
 
 #if defined(HAVE_LIBELF_SUPPORT) && defined(HAVE_GELF_GETNOTE_SUPPORT)
 static int build_id_cache__add_sdt_cache(const char *sbuild_id,
-					  const char *realname)
+					  const char *realname,
+					  struct nsinfo *nsi)
 {
 	struct probe_cache *cache;
 	int ret;
+	struct nscookie nsc;
 
-	cache = probe_cache__new(sbuild_id);
+	cache = probe_cache__new(sbuild_id, nsi);
 	if (!cache)
 		return -1;
 
+	nsinfo__mountns_enter(nsi, &nsc);
 	ret = probe_cache__scan_sdt(cache, realname);
+	nsinfo__mountns_exit(&nsc);
 	if (ret >= 0) {
 		pr_debug4("Found %d SDTs in %s\n", ret, realname);
 		if (probe_cache__commit(cache) < 0)
@@ -595,25 +606,56 @@ static int build_id_cache__add_sdt_cache(const char *sbuild_id,
 	return ret;
 }
 #else
-#define build_id_cache__add_sdt_cache(sbuild_id, realname) (0)
+#define build_id_cache__add_sdt_cache(sbuild_id, realname, nsi) (0)
 #endif
 
+static char *build_id_cache__find_debug(const char *sbuild_id,
+					struct nsinfo *nsi)
+{
+	char *realname = NULL;
+	char *debugfile;
+	struct nscookie nsc;
+	size_t len = 0;
+
+	debugfile = calloc(1, PATH_MAX);
+	if (!debugfile)
+		goto out;
+
+	len = __symbol__join_symfs(debugfile, PATH_MAX,
+				   "/usr/lib/debug/.build-id/");
+	snprintf(debugfile + len, PATH_MAX - len, "%.2s/%s.debug", sbuild_id,
+		 sbuild_id + 2);
+
+	nsinfo__mountns_enter(nsi, &nsc);
+	realname = realpath(debugfile, NULL);
+	if (realname && access(realname, R_OK))
+		zfree(&realname);
+	nsinfo__mountns_exit(&nsc);
+out:
+	free(debugfile);
+	return realname;
+}
+
 int build_id_cache__add_s(const char *sbuild_id, const char *name,
-			  bool is_kallsyms, bool is_vdso)
+			  struct nsinfo *nsi, bool is_kallsyms, bool is_vdso)
 {
 	const size_t size = PATH_MAX;
 	char *realname = NULL, *filename = NULL, *dir_name = NULL,
 	     *linkname = zalloc(size), *tmp;
+	char *debugfile = NULL;
 	int err = -1;
 
 	if (!is_kallsyms) {
-		realname = realpath(name, NULL);
+		if (!is_vdso)
+			realname = nsinfo__realpath(name, nsi);
+		else
+			realname = realpath(name, NULL);
 		if (!realname)
 			goto out_free;
 	}
 
-	dir_name = build_id_cache__cachedir(sbuild_id, name,
-					    is_kallsyms, is_vdso);
+	dir_name = build_id_cache__cachedir(sbuild_id, name, nsi, is_kallsyms,
+					    is_vdso);
 	if (!dir_name)
 		goto out_free;
 
@@ -627,20 +669,52 @@ int build_id_cache__add_s(const char *sbuild_id, const char *name,
 
 	/* Save the allocated buildid dirname */
 	if (asprintf(&filename, "%s/%s", dir_name,
-		     build_id_cache__basename(is_kallsyms, is_vdso)) < 0) {
+		     build_id_cache__basename(is_kallsyms, is_vdso,
+		     false)) < 0) {
 		filename = NULL;
 		goto out_free;
 	}
 
 	if (access(filename, F_OK)) {
 		if (is_kallsyms) {
-			 if (copyfile("/proc/kallsyms", filename))
+			if (copyfile("/proc/kallsyms", filename))
+				goto out_free;
+		} else if (nsi && nsi->need_setns) {
+			if (copyfile_ns(name, filename, nsi))
 				goto out_free;
 		} else if (link(realname, filename) && errno != EEXIST &&
 				copyfile(name, filename))
 			goto out_free;
 	}
 
+	/* Some binaries are stripped, but have .debug files with their symbol
+	 * table.  Check to see if we can locate one of those, since the elf
+	 * file itself may not be very useful to users of our tools without a
+	 * symtab.
+	 */
+	if (!is_kallsyms && !is_vdso &&
+	    strncmp(".ko", name + strlen(name) - 3, 3)) {
+		debugfile = build_id_cache__find_debug(sbuild_id, nsi);
+		if (debugfile) {
+			zfree(&filename);
+			if (asprintf(&filename, "%s/%s", dir_name,
+			    build_id_cache__basename(false, false, true)) < 0) {
+				filename = NULL;
+				goto out_free;
+			}
+			if (access(filename, F_OK)) {
+				if (nsi && nsi->need_setns) {
+					if (copyfile_ns(debugfile, filename,
+							nsi))
+						goto out_free;
+				} else if (link(debugfile, filename) &&
+						errno != EEXIST &&
+						copyfile(debugfile, filename))
+					goto out_free;
+			}
+		}
+	}
+
 	if (!build_id_cache__linkname(sbuild_id, linkname, size))
 		goto out_free;
 	tmp = strrchr(linkname, '/');
@@ -657,27 +731,30 @@ int build_id_cache__add_s(const char *sbuild_id, const char *name,
 		err = 0;
 
 	/* Update SDT cache : error is just warned */
-	if (realname && build_id_cache__add_sdt_cache(sbuild_id, realname) < 0)
+	if (realname &&
+	    build_id_cache__add_sdt_cache(sbuild_id, realname, nsi) < 0)
 		pr_debug4("Failed to update/scan SDT cache for %s\n", realname);
 
 out_free:
 	if (!is_kallsyms)
 		free(realname);
 	free(filename);
+	free(debugfile);
 	free(dir_name);
 	free(linkname);
 	return err;
 }
 
 static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
-				 const char *name, bool is_kallsyms,
-				 bool is_vdso)
+				 const char *name, struct nsinfo *nsi,
+				 bool is_kallsyms, bool is_vdso)
 {
 	char sbuild_id[SBUILD_ID_SIZE];
 
 	build_id__sprintf(build_id, build_id_size, sbuild_id);
 
-	return build_id_cache__add_s(sbuild_id, name, is_kallsyms, is_vdso);
+	return build_id_cache__add_s(sbuild_id, name, nsi, is_kallsyms,
+				     is_vdso);
 }
 
 bool build_id_cache__cached(const char *sbuild_id)
@@ -743,7 +820,7 @@ static int dso__cache_build_id(struct dso *dso, struct machine *machine)
 		name = nm;
 	}
 	return build_id_cache__add_b(dso->build_id, sizeof(dso->build_id), name,
-				     is_kallsyms, is_vdso);
+				     dso->nsinfo, is_kallsyms, is_vdso);
 }
 
 static int __dsos__cache_build_ids(struct list_head *head,
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index 96690a55c62c..c94b0dcbfd74 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -5,10 +5,12 @@
 #define SBUILD_ID_SIZE	(BUILD_ID_SIZE * 2 + 1)
 
 #include "tool.h"
+#include "namespaces.h"
 #include <linux/types.h>
 
 extern struct perf_tool build_id__mark_dso_hit_ops;
 struct dso;
+struct feat_fd;
 
 int build_id__sprintf(const u8 *build_id, int len, char *bf);
 int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
@@ -16,7 +18,8 @@ int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
 char *build_id_cache__kallsyms_path(const char *sbuild_id, char *bf,
 				    size_t size);
 
-char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size);
+char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
+			     bool is_debug);
 
 int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
 			   struct perf_sample *sample, struct perf_evsel *evsel,
@@ -25,23 +28,26 @@ int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
 int dsos__hit_all(struct perf_session *session);
 
 bool perf_session__read_build_ids(struct perf_session *session, bool with_hits);
-int perf_session__write_buildid_table(struct perf_session *session, int fd);
+int perf_session__write_buildid_table(struct perf_session *session,
+				      struct feat_fd *fd);
 int perf_session__cache_build_ids(struct perf_session *session);
 
 char *build_id_cache__origname(const char *sbuild_id);
 char *build_id_cache__linkname(const char *sbuild_id, char *bf, size_t size);
 char *build_id_cache__cachedir(const char *sbuild_id, const char *name,
-			       bool is_kallsyms, bool is_vdso);
+			       struct nsinfo *nsi, bool is_kallsyms,
+			       bool is_vdso);
 
 struct strlist;
 
 struct strlist *build_id_cache__list_all(bool validonly);
 char *build_id_cache__complement(const char *incomplete_sbuild_id);
-int build_id_cache__list_build_ids(const char *pathname,
+int build_id_cache__list_build_ids(const char *pathname, struct nsinfo *nsi,
 				   struct strlist **result);
 bool build_id_cache__cached(const char *sbuild_id);
 int build_id_cache__add_s(const char *sbuild_id,
-			  const char *name, bool is_kallsyms, bool is_vdso);
+			  const char *name, struct nsinfo *nsi,
+			  bool is_kallsyms, bool is_vdso);
 int build_id_cache__remove_s(const char *sbuild_id);
 
 extern char buildid_dir[];
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index b4204b43ed58..f320b0777e0d 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -23,6 +23,7 @@
 #include "sort.h"
 #include "machine.h"
 #include "callchain.h"
+#include "branch.h"
 
 #define CALLCHAIN_PARAM_DEFAULT			\
 	.mode		= CHAIN_GRAPH_ABS,	\
@@ -303,7 +304,7 @@ int perf_callchain_config(const char *var, const char *value)
 {
 	char *endptr;
 
-	if (prefixcmp(var, "call-graph."))
+	if (!strstarts(var, "call-graph."))
 		return 0;
 	var += sizeof("call-graph.") - 1;
 
@@ -562,15 +563,33 @@ fill_node(struct callchain_node *node, struct callchain_cursor *cursor)
 		if (cursor_node->branch) {
 			call->branch_count = 1;
 
-			if (cursor_node->branch_flags.predicted)
-				call->predicted_count = 1;
-
-			if (cursor_node->branch_flags.abort)
-				call->abort_count = 1;
-
-			call->cycles_count = cursor_node->branch_flags.cycles;
-			call->iter_count = cursor_node->nr_loop_iter;
-			call->samples_count = cursor_node->samples;
+			if (cursor_node->branch_from) {
+				/*
+				 * branch_from is set with value somewhere else
+				 * to imply it's "to" of a branch.
+				 */
+				call->brtype_stat.branch_to = true;
+
+				if (cursor_node->branch_flags.predicted)
+					call->predicted_count = 1;
+
+				if (cursor_node->branch_flags.abort)
+					call->abort_count = 1;
+
+				branch_type_count(&call->brtype_stat,
+						  &cursor_node->branch_flags,
+						  cursor_node->branch_from,
+						  cursor_node->ip);
+			} else {
+				/*
+				 * It's "from" of a branch
+				 */
+				call->brtype_stat.branch_to = false;
+				call->cycles_count =
+					cursor_node->branch_flags.cycles;
+				call->iter_count = cursor_node->nr_loop_iter;
+				call->samples_count = cursor_node->samples;
+			}
 		}
 
 		list_add_tail(&call->list, &node->val);
@@ -679,15 +698,32 @@ static enum match_result match_chain(struct callchain_cursor_node *node,
 		if (node->branch) {
 			cnode->branch_count++;
 
-			if (node->branch_flags.predicted)
-				cnode->predicted_count++;
-
-			if (node->branch_flags.abort)
-				cnode->abort_count++;
-
-			cnode->cycles_count += node->branch_flags.cycles;
-			cnode->iter_count += node->nr_loop_iter;
-			cnode->samples_count += node->samples;
+			if (node->branch_from) {
+				/*
+				 * It's "to" of a branch
+				 */
+				cnode->brtype_stat.branch_to = true;
+
+				if (node->branch_flags.predicted)
+					cnode->predicted_count++;
+
+				if (node->branch_flags.abort)
+					cnode->abort_count++;
+
+				branch_type_count(&cnode->brtype_stat,
+						  &node->branch_flags,
+						  node->branch_from,
+						  node->ip);
+			} else {
+				/*
+				 * It's "from" of a branch
+				 */
+				cnode->brtype_stat.branch_to = false;
+				cnode->cycles_count +=
+					node->branch_flags.cycles;
+				cnode->iter_count += node->nr_loop_iter;
+				cnode->samples_count += node->samples;
+			}
 		}
 
 		return MATCH_EQ;
@@ -922,7 +958,7 @@ merge_chain_branch(struct callchain_cursor *cursor,
 	list_for_each_entry_safe(list, next_list, &src->val, list) {
 		callchain_cursor_append(cursor, list->ip,
 					list->ms.map, list->ms.sym,
-					false, NULL, 0, 0);
+					false, NULL, 0, 0, 0);
 		list_del(&list->list);
 		map__zput(list->ms.map);
 		free(list);
@@ -962,7 +998,7 @@ int callchain_merge(struct callchain_cursor *cursor,
 int callchain_cursor_append(struct callchain_cursor *cursor,
 			    u64 ip, struct map *map, struct symbol *sym,
 			    bool branch, struct branch_flags *flags,
-			    int nr_loop_iter, int samples)
+			    int nr_loop_iter, int samples, u64 branch_from)
 {
 	struct callchain_cursor_node *node = *cursor->last;
 
@@ -986,6 +1022,7 @@ int callchain_cursor_append(struct callchain_cursor *cursor,
 		memcpy(&node->branch_flags, flags,
 			sizeof(struct branch_flags));
 
+	node->branch_from = branch_from;
 	cursor->nr++;
 
 	cursor->last = &node->next;
@@ -998,11 +1035,11 @@ int sample__resolve_callchain(struct perf_sample *sample,
 			      struct perf_evsel *evsel, struct addr_location *al,
 			      int max_stack)
 {
-	if (sample->callchain == NULL)
+	if (sample->callchain == NULL && !symbol_conf.show_branchflag_count)
 		return 0;
 
 	if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain ||
-	    perf_hpp_list.parent) {
+	    perf_hpp_list.parent || symbol_conf.show_branchflag_count) {
 		return thread__resolve_callchain(al->thread, cursor, evsel, sample,
 						 parent, al, max_stack);
 	}
@@ -1011,7 +1048,8 @@ int sample__resolve_callchain(struct perf_sample *sample,
 
 int hist_entry__append_callchain(struct hist_entry *he, struct perf_sample *sample)
 {
-	if (!symbol_conf.use_callchain || sample->callchain == NULL)
+	if ((!symbol_conf.use_callchain || sample->callchain == NULL) &&
+		!symbol_conf.show_branchflag_count)
 		return 0;
 	return callchain_append(he->callchain, &callchain_cursor, sample->period);
 }
@@ -1214,95 +1252,120 @@ int callchain_branch_counts(struct callchain_root *root,
 						  cycles_count);
 }
 
-static int counts_str_build(char *bf, int bfsize,
-			     u64 branch_count, u64 predicted_count,
-			     u64 abort_count, u64 cycles_count,
-			     u64 iter_count, u64 samples_count)
+static int count_pri64_printf(int idx, const char *str, u64 value, char *bf, int bfsize)
 {
-	double predicted_percent = 0.0;
-	const char *null_str = "";
-	char iter_str[32];
-	char cycle_str[32];
-	char *istr, *cstr;
-	u64 cycles;
+	int printed;
 
-	if (branch_count == 0)
-		return scnprintf(bf, bfsize, " (calltrace)");
+	printed = scnprintf(bf, bfsize, "%s%s:%" PRId64 "", (idx) ? " " : " (", str, value);
 
-	cycles = cycles_count / branch_count;
+	return printed;
+}
 
-	if (iter_count && samples_count) {
-		if (cycles > 0)
-			scnprintf(iter_str, sizeof(iter_str),
-				 " iterations:%" PRId64 "",
-				 iter_count / samples_count);
-		else
-			scnprintf(iter_str, sizeof(iter_str),
-				 "iterations:%" PRId64 "",
-				 iter_count / samples_count);
-		istr = iter_str;
-	} else
-		istr = (char *)null_str;
+static int count_float_printf(int idx, const char *str, float value,
+			      char *bf, int bfsize, float threshold)
+{
+	int printed;
 
-	if (cycles > 0) {
-		scnprintf(cycle_str, sizeof(cycle_str),
-			  "cycles:%" PRId64 "", cycles);
-		cstr = cycle_str;
-	} else
-		cstr = (char *)null_str;
+	if (threshold != 0.0 && value < threshold)
+		return 0;
 
-	predicted_percent = predicted_count * 100.0 / branch_count;
+	printed = scnprintf(bf, bfsize, "%s%s:%.1f%%", (idx) ? " " : " (", str, value);
 
-	if ((predicted_count == branch_count) && (abort_count == 0)) {
-		if ((cycles > 0) || (istr != (char *)null_str))
-			return scnprintf(bf, bfsize, " (%s%s)", cstr, istr);
-		else
-			return scnprintf(bf, bfsize, "%s", (char *)null_str);
+	return printed;
+}
+
+static int branch_to_str(char *bf, int bfsize,
+			 u64 branch_count, u64 predicted_count,
+			 u64 abort_count,
+			 struct branch_type_stat *brtype_stat)
+{
+	int printed, i = 0;
+
+	printed = branch_type_str(brtype_stat, bf, bfsize);
+	if (printed)
+		i++;
+
+	if (predicted_count < branch_count) {
+		printed += count_float_printf(i++, "predicted",
+				predicted_count * 100.0 / branch_count,
+				bf + printed, bfsize - printed, 0.0);
 	}
 
-	if ((predicted_count < branch_count) && (abort_count == 0)) {
-		if ((cycles > 0) || (istr != (char *)null_str))
-			return scnprintf(bf, bfsize,
-				" (predicted:%.1f%% %s%s)",
-				predicted_percent, cstr, istr);
-		else {
-			return scnprintf(bf, bfsize,
-				" (predicted:%.1f%%)",
-				predicted_percent);
-		}
+	if (abort_count) {
+		printed += count_float_printf(i++, "abort",
+				abort_count * 100.0 / branch_count,
+				bf + printed, bfsize - printed, 0.1);
 	}
 
-	if ((predicted_count == branch_count) && (abort_count > 0)) {
-		if ((cycles > 0) || (istr != (char *)null_str))
-			return scnprintf(bf, bfsize,
-				" (abort:%" PRId64 " %s%s)",
-				abort_count, cstr, istr);
-		else
-			return scnprintf(bf, bfsize,
-				" (abort:%" PRId64 ")",
-				abort_count);
+	if (i)
+		printed += scnprintf(bf + printed, bfsize - printed, ")");
+
+	return printed;
+}
+
+static int branch_from_str(char *bf, int bfsize,
+			   u64 branch_count,
+			   u64 cycles_count, u64 iter_count,
+			   u64 samples_count)
+{
+	int printed = 0, i = 0;
+	u64 cycles;
+
+	cycles = cycles_count / branch_count;
+	if (cycles) {
+		printed += count_pri64_printf(i++, "cycles",
+				cycles,
+				bf + printed, bfsize - printed);
+	}
+
+	if (iter_count && samples_count) {
+		printed += count_pri64_printf(i++, "iterations",
+				iter_count / samples_count,
+				bf + printed, bfsize - printed);
+	}
+
+	if (i)
+		printed += scnprintf(bf + printed, bfsize - printed, ")");
+
+	return printed;
+}
+
+static int counts_str_build(char *bf, int bfsize,
+			     u64 branch_count, u64 predicted_count,
+			     u64 abort_count, u64 cycles_count,
+			     u64 iter_count, u64 samples_count,
+			     struct branch_type_stat *brtype_stat)
+{
+	int printed;
+
+	if (branch_count == 0)
+		return scnprintf(bf, bfsize, " (calltrace)");
+
+	if (brtype_stat->branch_to) {
+		printed = branch_to_str(bf, bfsize, branch_count,
+				predicted_count, abort_count, brtype_stat);
+	} else {
+		printed = branch_from_str(bf, bfsize, branch_count,
+				cycles_count, iter_count, samples_count);
 	}
 
-	if ((cycles > 0) || (istr != (char *)null_str))
-		return scnprintf(bf, bfsize,
-			" (predicted:%.1f%% abort:%" PRId64 " %s%s)",
-			predicted_percent, abort_count, cstr, istr);
+	if (!printed)
+		bf[0] = 0;
 
-	return scnprintf(bf, bfsize,
-			" (predicted:%.1f%% abort:%" PRId64 ")",
-			predicted_percent, abort_count);
+	return printed;
 }
 
 static int callchain_counts_printf(FILE *fp, char *bf, int bfsize,
 				   u64 branch_count, u64 predicted_count,
 				   u64 abort_count, u64 cycles_count,
-				   u64 iter_count, u64 samples_count)
+				   u64 iter_count, u64 samples_count,
+				   struct branch_type_stat *brtype_stat)
 {
-	char str[128];
+	char str[256];
 
 	counts_str_build(str, sizeof(str), branch_count,
 			 predicted_count, abort_count, cycles_count,
-			 iter_count, samples_count);
+			 iter_count, samples_count, brtype_stat);
 
 	if (fp)
 		return fprintf(fp, "%s", str);
@@ -1334,7 +1397,8 @@ int callchain_list_counts__printf_value(struct callchain_node *node,
 
 	return callchain_counts_printf(fp, bf, bfsize, branch_count,
 				       predicted_count, abort_count,
-				       cycles_count, iter_count, samples_count);
+				       cycles_count, iter_count, samples_count,
+				       &clist->brtype_stat);
 }
 
 static void free_callchain_node(struct callchain_node *node)
@@ -1459,7 +1523,8 @@ int callchain_cursor__copy(struct callchain_cursor *dst,
 
 		rc = callchain_cursor_append(dst, node->ip, node->map, node->sym,
 					     node->branch, &node->branch_flags,
-					     node->nr_loop_iter, node->samples);
+					     node->nr_loop_iter, node->samples,
+					     node->branch_from);
 		if (rc)
 			break;
 
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index c56c23dbbf72..97738201464a 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -7,6 +7,7 @@
 #include "event.h"
 #include "map.h"
 #include "symbol.h"
+#include "branch.h"
 
 #define HELP_PAD "\t\t\t\t"
 
@@ -119,6 +120,7 @@ struct callchain_list {
 	u64			cycles_count;
 	u64			iter_count;
 	u64			samples_count;
+	struct branch_type_stat brtype_stat;
 	char		       *srcline;
 	struct list_head	list;
 };
@@ -135,6 +137,7 @@ struct callchain_cursor_node {
 	struct symbol			*sym;
 	bool				branch;
 	struct branch_flags		branch_flags;
+	u64				branch_from;
 	int				nr_loop_iter;
 	int				samples;
 	struct callchain_cursor_node	*next;
@@ -198,7 +201,7 @@ static inline void callchain_cursor_reset(struct callchain_cursor *cursor)
 int callchain_cursor_append(struct callchain_cursor *cursor, u64 ip,
 			    struct map *map, struct symbol *sym,
 			    bool branch, struct branch_flags *flags,
-			    int nr_loop_iter, int samples);
+			    int nr_loop_iter, int samples, u64 branch_from);
 
 /* Close a cursor writing session. Initialize for the reader */
 static inline void callchain_cursor_commit(struct callchain_cursor *cursor)
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c
index 03347748f3fa..0e77bc9e5f3c 100644
--- a/tools/perf/util/cgroup.c
+++ b/tools/perf/util/cgroup.c
@@ -98,8 +98,10 @@ static int add_cgroup(struct perf_evlist *evlist, char *str)
 		cgrp = counter->cgrp;
 		if (!cgrp)
 			continue;
-		if (!strcmp(cgrp->name, str))
+		if (!strcmp(cgrp->name, str)) {
+			refcount_inc(&cgrp->refcnt);
 			break;
+		}
 
 		cgrp = NULL;
 	}
@@ -110,6 +112,7 @@ static int add_cgroup(struct perf_evlist *evlist, char *str)
 			return -1;
 
 		cgrp->name = str;
+		refcount_set(&cgrp->refcnt, 1);
 
 		cgrp->fd = open_cgroup(str);
 		if (cgrp->fd == -1) {
@@ -128,12 +131,11 @@ static int add_cgroup(struct perf_evlist *evlist, char *str)
 			goto found;
 		n++;
 	}
-	if (refcount_read(&cgrp->refcnt) == 0)
+	if (refcount_dec_and_test(&cgrp->refcnt))
 		free(cgrp);
 
 	return -1;
 found:
-	refcount_inc(&cgrp->refcnt);
 	counter->cgrp = cgrp;
 	return 0;
 }
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index 31a7dea248d0..bc75596f9e79 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -19,6 +19,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
+#include <linux/string.h>
 
 #include "sane_ctype.h"
 
@@ -433,22 +434,22 @@ static int perf_ui_config(const char *var, const char *value)
 int perf_default_config(const char *var, const char *value,
 			void *dummy __maybe_unused)
 {
-	if (!prefixcmp(var, "core."))
+	if (strstarts(var, "core."))
 		return perf_default_core_config(var, value);
 
-	if (!prefixcmp(var, "hist."))
+	if (strstarts(var, "hist."))
 		return perf_hist_config(var, value);
 
-	if (!prefixcmp(var, "ui."))
+	if (strstarts(var, "ui."))
 		return perf_ui_config(var, value);
 
-	if (!prefixcmp(var, "call-graph."))
+	if (strstarts(var, "call-graph."))
 		return perf_callchain_config(var, value);
 
-	if (!prefixcmp(var, "llvm."))
+	if (strstarts(var, "llvm."))
 		return perf_llvm_config(var, value);
 
-	if (!prefixcmp(var, "buildid."))
+	if (strstarts(var, "buildid."))
 		return perf_buildid_config(var, value);
 
 	/* Add other config variables here. */
diff --git a/tools/perf/util/counts.h b/tools/perf/util/counts.h
index 34d8baaf558a..cb45a6aecf9d 100644
--- a/tools/perf/util/counts.h
+++ b/tools/perf/util/counts.h
@@ -12,6 +12,7 @@ struct perf_counts_values {
 		};
 		u64 values[3];
 	};
+	bool	loaded;
 };
 
 struct perf_counts {
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 3149b70799fd..2346cecb8ea2 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -76,6 +76,8 @@ struct ctf_writer {
 	struct bt_ctf_event_class	*comm_class;
 	struct bt_ctf_event_class	*exit_class;
 	struct bt_ctf_event_class	*fork_class;
+	struct bt_ctf_event_class	*mmap_class;
+	struct bt_ctf_event_class	*mmap2_class;
 };
 
 struct convert {
@@ -506,6 +508,81 @@ put_len_type:
 	return ret;
 }
 
+static int
+add_callchain_output_values(struct bt_ctf_event_class *event_class,
+		      struct bt_ctf_event *event,
+		      struct ip_callchain *callchain)
+{
+	struct bt_ctf_field_type *len_type, *seq_type;
+	struct bt_ctf_field *len_field, *seq_field;
+	unsigned int nr_elements = callchain->nr;
+	unsigned int i;
+	int ret;
+
+	len_type = bt_ctf_event_class_get_field_by_name(
+			event_class, "perf_callchain_size");
+	len_field = bt_ctf_field_create(len_type);
+	if (!len_field) {
+		pr_err("failed to create 'perf_callchain_size' for callchain output event\n");
+		ret = -1;
+		goto put_len_type;
+	}
+
+	ret = bt_ctf_field_unsigned_integer_set_value(len_field, nr_elements);
+	if (ret) {
+		pr_err("failed to set field value for perf_callchain_size\n");
+		goto put_len_field;
+	}
+	ret = bt_ctf_event_set_payload(event, "perf_callchain_size", len_field);
+	if (ret) {
+		pr_err("failed to set payload to perf_callchain_size\n");
+		goto put_len_field;
+	}
+
+	seq_type = bt_ctf_event_class_get_field_by_name(
+			event_class, "perf_callchain");
+	seq_field = bt_ctf_field_create(seq_type);
+	if (!seq_field) {
+		pr_err("failed to create 'perf_callchain' for callchain output event\n");
+		ret = -1;
+		goto put_seq_type;
+	}
+
+	ret = bt_ctf_field_sequence_set_length(seq_field, len_field);
+	if (ret) {
+		pr_err("failed to set length of 'perf_callchain'\n");
+		goto put_seq_field;
+	}
+
+	for (i = 0; i < nr_elements; i++) {
+		struct bt_ctf_field *elem_field =
+			bt_ctf_field_sequence_get_field(seq_field, i);
+
+		ret = bt_ctf_field_unsigned_integer_set_value(elem_field,
+				((u64 *)(callchain->ips))[i]);
+
+		bt_ctf_field_put(elem_field);
+		if (ret) {
+			pr_err("failed to set callchain[%d]\n", i);
+			goto put_seq_field;
+		}
+	}
+
+	ret = bt_ctf_event_set_payload(event, "perf_callchain", seq_field);
+	if (ret)
+		pr_err("failed to set payload for raw_data\n");
+
+put_seq_field:
+	bt_ctf_field_put(seq_field);
+put_seq_type:
+	bt_ctf_field_type_put(seq_type);
+put_len_field:
+	bt_ctf_field_put(len_field);
+put_len_type:
+	bt_ctf_field_type_put(len_type);
+	return ret;
+}
+
 static int add_generic_values(struct ctf_writer *cw,
 			      struct bt_ctf_event *event,
 			      struct perf_evsel *evsel,
@@ -519,7 +596,6 @@ static int add_generic_values(struct ctf_writer *cw,
 	 *   PERF_SAMPLE_TIME         - not needed as we have it in
 	 *                              ctf event header
 	 *   PERF_SAMPLE_READ         - TODO
-	 *   PERF_SAMPLE_CALLCHAIN    - TODO
 	 *   PERF_SAMPLE_RAW          - tracepoint fields are handled separately
 	 *   PERF_SAMPLE_BRANCH_STACK - TODO
 	 *   PERF_SAMPLE_REGS_USER    - TODO
@@ -720,6 +796,7 @@ static int process_sample_event(struct perf_tool *tool,
 	struct bt_ctf_event_class *event_class;
 	struct bt_ctf_event *event;
 	int ret;
+	unsigned long type = evsel->attr.sample_type;
 
 	if (WARN_ONCE(!priv, "Failed to setup all events.\n"))
 		return 0;
@@ -751,6 +828,13 @@ static int process_sample_event(struct perf_tool *tool,
 			return -1;
 	}
 
+	if (type & PERF_SAMPLE_CALLCHAIN) {
+		ret = add_callchain_output_values(event_class,
+				event, sample->callchain);
+		if (ret)
+			return -1;
+	}
+
 	if (perf_evsel__is_bpf_output(evsel)) {
 		ret = add_bpf_output_values(event_class, event, sample);
 		if (ret)
@@ -833,6 +917,18 @@ __FUNC_PROCESS_NON_SAMPLE(exit,
 	__NON_SAMPLE_SET_FIELD(fork, u32, ptid);
 	__NON_SAMPLE_SET_FIELD(fork, u64, time);
 )
+__FUNC_PROCESS_NON_SAMPLE(mmap,
+	__NON_SAMPLE_SET_FIELD(mmap, u32, pid);
+	__NON_SAMPLE_SET_FIELD(mmap, u32, tid);
+	__NON_SAMPLE_SET_FIELD(mmap, u64_hex, start);
+	__NON_SAMPLE_SET_FIELD(mmap, string, filename);
+)
+__FUNC_PROCESS_NON_SAMPLE(mmap2,
+	__NON_SAMPLE_SET_FIELD(mmap2, u32, pid);
+	__NON_SAMPLE_SET_FIELD(mmap2, u32, tid);
+	__NON_SAMPLE_SET_FIELD(mmap2, u64_hex, start);
+	__NON_SAMPLE_SET_FIELD(mmap2, string, filename);
+)
 #undef __NON_SAMPLE_SET_FIELD
 #undef __FUNC_PROCESS_NON_SAMPLE
 
@@ -1043,6 +1139,14 @@ static int add_generic_types(struct ctf_writer *cw, struct perf_evsel *evsel,
 	if (type & PERF_SAMPLE_TRANSACTION)
 		ADD_FIELD(event_class, cw->data.u64, "perf_transaction");
 
+	if (type & PERF_SAMPLE_CALLCHAIN) {
+		ADD_FIELD(event_class, cw->data.u32, "perf_callchain_size");
+		ADD_FIELD(event_class,
+			bt_ctf_field_type_sequence_create(
+				cw->data.u64_hex, "perf_callchain_size"),
+			"perf_callchain");
+	}
+
 #undef ADD_FIELD
 	return 0;
 }
@@ -1164,6 +1268,19 @@ __FUNC_ADD_NON_SAMPLE_EVENT_CLASS(exit,
 	__NON_SAMPLE_ADD_FIELD(u64, time);
 )
 
+__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap,
+	__NON_SAMPLE_ADD_FIELD(u32, pid);
+	__NON_SAMPLE_ADD_FIELD(u32, tid);
+	__NON_SAMPLE_ADD_FIELD(u64_hex, start);
+	__NON_SAMPLE_ADD_FIELD(string, filename);
+)
+
+__FUNC_ADD_NON_SAMPLE_EVENT_CLASS(mmap2,
+	__NON_SAMPLE_ADD_FIELD(u32, pid);
+	__NON_SAMPLE_ADD_FIELD(u32, tid);
+	__NON_SAMPLE_ADD_FIELD(u64_hex, start);
+	__NON_SAMPLE_ADD_FIELD(string, filename);
+)
 #undef __NON_SAMPLE_ADD_FIELD
 #undef __FUNC_ADD_NON_SAMPLE_EVENT_CLASS
 
@@ -1181,6 +1298,12 @@ static int setup_non_sample_events(struct ctf_writer *cw,
 	ret = add_fork_event(cw);
 	if (ret)
 		return ret;
+	ret = add_mmap_event(cw);
+	if (ret)
+		return ret;
+	ret = add_mmap2_event(cw);
+	if (ret)
+		return ret;
 	return 0;
 }
 
@@ -1482,6 +1605,8 @@ int bt_convert__perf2ctf(const char *input, const char *path,
 		c.tool.comm = process_comm_event;
 		c.tool.exit = process_exit_event;
 		c.tool.fork = process_fork_event;
+		c.tool.mmap = process_mmap_event;
+		c.tool.mmap2 = process_mmap2_event;
 	}
 
 	err = perf_config(convert__config, &c);
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 4e7ab611377a..b9e087fb8247 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -32,6 +32,7 @@ char dso__symtab_origin(const struct dso *dso)
 		[DSO_BINARY_TYPE__JAVA_JIT]			= 'j',
 		[DSO_BINARY_TYPE__DEBUGLINK]			= 'l',
 		[DSO_BINARY_TYPE__BUILD_ID_CACHE]		= 'B',
+		[DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO]	= 'D',
 		[DSO_BINARY_TYPE__FEDORA_DEBUGINFO]		= 'f',
 		[DSO_BINARY_TYPE__UBUNTU_DEBUGINFO]		= 'u',
 		[DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO]	= 'o',
@@ -97,7 +98,12 @@ int dso__read_binary_type_filename(const struct dso *dso,
 		break;
 	}
 	case DSO_BINARY_TYPE__BUILD_ID_CACHE:
-		if (dso__build_id_filename(dso, filename, size) == NULL)
+		if (dso__build_id_filename(dso, filename, size, false) == NULL)
+			ret = -1;
+		break;
+
+	case DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO:
+		if (dso__build_id_filename(dso, filename, size, true) == NULL)
 			ret = -1;
 		break;
 
@@ -504,7 +510,14 @@ static void check_data_close(void);
  */
 static int open_dso(struct dso *dso, struct machine *machine)
 {
-	int fd = __open_dso(dso, machine);
+	int fd;
+	struct nscookie nsc;
+
+	if (dso->binary_type != DSO_BINARY_TYPE__BUILD_ID_CACHE)
+		nsinfo__mountns_enter(dso->nsinfo, &nsc);
+	fd = __open_dso(dso, machine);
+	if (dso->binary_type != DSO_BINARY_TYPE__BUILD_ID_CACHE)
+		nsinfo__mountns_exit(&nsc);
 
 	if (fd >= 0) {
 		dso__list_add(dso);
@@ -1236,6 +1249,7 @@ void dso__delete(struct dso *dso)
 	dso_cache__free(dso);
 	dso__free_a2l(dso);
 	zfree(&dso->symsrc_filename);
+	nsinfo__zput(dso->nsinfo);
 	pthread_mutex_destroy(&dso->lock);
 	free(dso);
 }
@@ -1301,6 +1315,7 @@ bool __dsos__read_build_ids(struct list_head *head, bool with_hits)
 {
 	bool have_build_id = false;
 	struct dso *pos;
+	struct nscookie nsc;
 
 	list_for_each_entry(pos, head, node) {
 		if (with_hits && !pos->hit && !dso__is_vdso(pos))
@@ -1309,11 +1324,13 @@ bool __dsos__read_build_ids(struct list_head *head, bool with_hits)
 			have_build_id = true;
 			continue;
 		}
+		nsinfo__mountns_enter(pos->nsinfo, &nsc);
 		if (filename__read_build_id(pos->long_name, pos->build_id,
 					    sizeof(pos->build_id)) > 0) {
 			have_build_id	  = true;
 			pos->has_build_id = true;
 		}
+		nsinfo__mountns_exit(&nsc);
 	}
 
 	return have_build_id;
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index bd061ba7b47c..f886141678eb 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -10,6 +10,7 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include "map.h"
+#include "namespaces.h"
 #include "build-id.h"
 
 enum dso_binary_type {
@@ -20,6 +21,7 @@ enum dso_binary_type {
 	DSO_BINARY_TYPE__JAVA_JIT,
 	DSO_BINARY_TYPE__DEBUGLINK,
 	DSO_BINARY_TYPE__BUILD_ID_CACHE,
+	DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO,
 	DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
 	DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
 	DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
@@ -187,6 +189,7 @@ struct dso {
 		void	 *priv;
 		u64	 db_id;
 	};
+	struct nsinfo	*nsinfo;
 	refcount_t	 refcnt;
 	char		 name[0];
 };
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index dc5c3bb69d73..1c905ba3641b 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -57,6 +57,7 @@ static const char *perf_event__names[] = {
 	[PERF_RECORD_STAT_ROUND]		= "STAT_ROUND",
 	[PERF_RECORD_EVENT_UPDATE]		= "EVENT_UPDATE",
 	[PERF_RECORD_TIME_CONV]			= "TIME_CONV",
+	[PERF_RECORD_HEADER_FEATURE]		= "FEATURE",
 };
 
 static const char *perf_ns__names[] = {
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 9967c87af7a6..423ac82605f3 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -142,7 +142,8 @@ struct branch_flags {
 	u64 in_tx:1;
 	u64 abort:1;
 	u64 cycles:16;
-	u64 reserved:44;
+	u64 type:4;
+	u64 reserved:40;
 };
 
 struct branch_entry {
@@ -244,6 +245,7 @@ enum perf_user_event_type { /* above any possible kernel type */
 	PERF_RECORD_STAT_ROUND			= 77,
 	PERF_RECORD_EVENT_UPDATE		= 78,
 	PERF_RECORD_TIME_CONV			= 79,
+	PERF_RECORD_HEADER_FEATURE		= 80,
 	PERF_RECORD_HEADER_MAX
 };
 
@@ -609,6 +611,12 @@ struct time_conv_event {
 	u64 time_zero;
 };
 
+struct feature_event {
+	struct perf_event_header 	header;
+	u64				feat_id;
+	char				data[];
+};
+
 union perf_event {
 	struct perf_event_header	header;
 	struct mmap_event		mmap;
@@ -639,6 +647,7 @@ union perf_event {
 	struct stat_event		stat;
 	struct stat_round_event		stat_round;
 	struct time_conv_event		time_conv;
+	struct feature_event		feat;
 };
 
 void perf_event__print_totals(void);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 46c0faf6c502..6a0d7ffbeba0 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -242,9 +242,9 @@ void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr)
 	}
 }
 
-int perf_evlist__add_default(struct perf_evlist *evlist)
+int __perf_evlist__add_default(struct perf_evlist *evlist, bool precise)
 {
-	struct perf_evsel *evsel = perf_evsel__new_cycles();
+	struct perf_evsel *evsel = perf_evsel__new_cycles(precise);
 
 	if (evsel == NULL)
 		return -ENOMEM;
@@ -1419,8 +1419,6 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
 {
 	struct perf_evsel *evsel;
 	int err = 0;
-	const int ncpus = cpu_map__nr(evlist->cpus),
-		  nthreads = thread_map__nr(evlist->threads);
 
 	evlist__for_each_entry(evlist, evsel) {
 		if (evsel->filter == NULL)
@@ -1430,7 +1428,7 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
 		 * filters only work for tracepoint event, which doesn't have cpu limit.
 		 * So evlist and evsel should always be same.
 		 */
-		err = perf_evsel__apply_filter(evsel, ncpus, nthreads, evsel->filter);
+		err = perf_evsel__apply_filter(evsel, evsel->filter);
 		if (err) {
 			*err_evsel = evsel;
 			break;
@@ -1623,13 +1621,9 @@ void perf_evlist__set_selected(struct perf_evlist *evlist,
 void perf_evlist__close(struct perf_evlist *evlist)
 {
 	struct perf_evsel *evsel;
-	int ncpus = cpu_map__nr(evlist->cpus);
-	int nthreads = thread_map__nr(evlist->threads);
 
-	evlist__for_each_entry_reverse(evlist, evsel) {
-		int n = evsel->cpus ? evsel->cpus->nr : ncpus;
-		perf_evsel__close(evsel, n, nthreads);
-	}
+	evlist__for_each_entry_reverse(evlist, evsel)
+		perf_evsel__close(evsel);
 }
 
 static int perf_evlist__create_syswide_maps(struct perf_evlist *evlist)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 8d601fbdd8d6..bf2c4936e35f 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -115,7 +115,14 @@ void perf_evlist__delete(struct perf_evlist *evlist);
 
 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
 void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
-int perf_evlist__add_default(struct perf_evlist *evlist);
+
+int __perf_evlist__add_default(struct perf_evlist *evlist, bool precise);
+
+static inline int perf_evlist__add_default(struct perf_evlist *evlist)
+{
+	return __perf_evlist__add_default(evlist, true);
+}
+
 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
 				     struct perf_event_attr *attrs, size_t nr_attrs);
 
@@ -258,6 +265,11 @@ bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
 				   struct list_head *list);
 
+static inline bool perf_evlist__empty(struct perf_evlist *evlist)
+{
+	return list_empty(&evlist->entries);
+}
+
 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
 {
 	return list_entry(evlist->entries.next, struct perf_evsel, node);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 413f74df08de..d9bd632ed7db 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -49,6 +49,7 @@ static struct {
 	bool clockid_wrong;
 	bool lbr_flags;
 	bool write_backward;
+	bool group_read;
 } perf_missing_features;
 
 static clockid_t clockid;
@@ -58,6 +59,8 @@ static int perf_evsel__no_extra_init(struct perf_evsel *evsel __maybe_unused)
 	return 0;
 }
 
+void __weak test_attr__ready(void) { }
+
 static void perf_evsel__no_extra_fini(struct perf_evsel *evsel __maybe_unused)
 {
 }
@@ -268,7 +271,7 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
 	return evsel;
 }
 
-struct perf_evsel *perf_evsel__new_cycles(void)
+struct perf_evsel *perf_evsel__new_cycles(bool precise)
 {
 	struct perf_event_attr attr = {
 		.type	= PERF_TYPE_HARDWARE,
@@ -278,6 +281,9 @@ struct perf_evsel *perf_evsel__new_cycles(void)
 	struct perf_evsel *evsel;
 
 	event_attr_init(&attr);
+
+	if (!precise)
+		goto new_event;
 	/*
 	 * Unnamed union member, not supported as struct member named
 	 * initializer in older compilers such as gcc 4.4.7
@@ -292,7 +298,7 @@ struct perf_evsel *perf_evsel__new_cycles(void)
 	 * to kick in when we return and before perf_evsel__open() is called.
 	 */
 	attr.sample_period = 0;
-
+new_event:
 	evsel = perf_evsel__new(&attr);
 	if (evsel == NULL)
 		goto out;
@@ -896,8 +902,13 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
 	if (opts->no_samples)
 		attr->sample_freq = 0;
 
-	if (opts->inherit_stat)
+	if (opts->inherit_stat) {
+		evsel->attr.read_format |=
+			PERF_FORMAT_TOTAL_TIME_ENABLED |
+			PERF_FORMAT_TOTAL_TIME_RUNNING |
+			PERF_FORMAT_ID;
 		attr->inherit_stat = 1;
+	}
 
 	if (opts->sample_address) {
 		perf_evsel__set_sample_bit(evsel, ADDR);
@@ -1045,16 +1056,13 @@ static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthread
 	return evsel->fd != NULL ? 0 : -ENOMEM;
 }
 
-static int perf_evsel__run_ioctl(struct perf_evsel *evsel, int ncpus, int nthreads,
+static int perf_evsel__run_ioctl(struct perf_evsel *evsel,
 			  int ioc,  void *arg)
 {
 	int cpu, thread;
 
-	if (evsel->system_wide)
-		nthreads = 1;
-
-	for (cpu = 0; cpu < ncpus; cpu++) {
-		for (thread = 0; thread < nthreads; thread++) {
+	for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++) {
+		for (thread = 0; thread < xyarray__max_y(evsel->fd); thread++) {
 			int fd = FD(evsel, cpu, thread),
 			    err = ioctl(fd, ioc, arg);
 
@@ -1066,10 +1074,9 @@ static int perf_evsel__run_ioctl(struct perf_evsel *evsel, int ncpus, int nthrea
 	return 0;
 }
 
-int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
-			     const char *filter)
+int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter)
 {
-	return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
+	return perf_evsel__run_ioctl(evsel,
 				     PERF_EVENT_IOC_SET_FILTER,
 				     (void *)filter);
 }
@@ -1116,20 +1123,14 @@ int perf_evsel__append_addr_filter(struct perf_evsel *evsel, const char *filter)
 
 int perf_evsel__enable(struct perf_evsel *evsel)
 {
-	int nthreads = thread_map__nr(evsel->threads);
-	int ncpus = cpu_map__nr(evsel->cpus);
-
-	return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
+	return perf_evsel__run_ioctl(evsel,
 				     PERF_EVENT_IOC_ENABLE,
 				     0);
 }
 
 int perf_evsel__disable(struct perf_evsel *evsel)
 {
-	int nthreads = thread_map__nr(evsel->threads);
-	int ncpus = cpu_map__nr(evsel->cpus);
-
-	return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
+	return perf_evsel__run_ioctl(evsel,
 				     PERF_EVENT_IOC_DISABLE,
 				     0);
 }
@@ -1179,15 +1180,12 @@ static void perf_evsel__free_config_terms(struct perf_evsel *evsel)
 	}
 }
 
-void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
+void perf_evsel__close_fd(struct perf_evsel *evsel)
 {
 	int cpu, thread;
 
-	if (evsel->system_wide)
-		nthreads = 1;
-
-	for (cpu = 0; cpu < ncpus; cpu++)
-		for (thread = 0; thread < nthreads; ++thread) {
+	for (cpu = 0; cpu < xyarray__max_x(evsel->fd); cpu++)
+		for (thread = 0; thread < xyarray__max_y(evsel->fd); ++thread) {
 			close(FD(evsel, cpu, thread));
 			FD(evsel, cpu, thread) = -1;
 		}
@@ -1256,20 +1254,148 @@ void perf_counts_values__scale(struct perf_counts_values *count,
 		*pscaled = scaled;
 }
 
+static int perf_evsel__read_size(struct perf_evsel *evsel)
+{
+	u64 read_format = evsel->attr.read_format;
+	int entry = sizeof(u64); /* value */
+	int size = 0;
+	int nr = 1;
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
+		size += sizeof(u64);
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
+		size += sizeof(u64);
+
+	if (read_format & PERF_FORMAT_ID)
+		entry += sizeof(u64);
+
+	if (read_format & PERF_FORMAT_GROUP) {
+		nr = evsel->nr_members;
+		size += sizeof(u64);
+	}
+
+	size += entry * nr;
+	return size;
+}
+
 int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
 		     struct perf_counts_values *count)
 {
+	size_t size = perf_evsel__read_size(evsel);
+
 	memset(count, 0, sizeof(*count));
 
 	if (FD(evsel, cpu, thread) < 0)
 		return -EINVAL;
 
-	if (readn(FD(evsel, cpu, thread), count, sizeof(*count)) <= 0)
+	if (readn(FD(evsel, cpu, thread), count->values, size) <= 0)
 		return -errno;
 
 	return 0;
 }
 
+static int
+perf_evsel__read_one(struct perf_evsel *evsel, int cpu, int thread)
+{
+	struct perf_counts_values *count = perf_counts(evsel->counts, cpu, thread);
+
+	return perf_evsel__read(evsel, cpu, thread, count);
+}
+
+static void
+perf_evsel__set_count(struct perf_evsel *counter, int cpu, int thread,
+		      u64 val, u64 ena, u64 run)
+{
+	struct perf_counts_values *count;
+
+	count = perf_counts(counter->counts, cpu, thread);
+
+	count->val    = val;
+	count->ena    = ena;
+	count->run    = run;
+	count->loaded = true;
+}
+
+static int
+perf_evsel__process_group_data(struct perf_evsel *leader,
+			       int cpu, int thread, u64 *data)
+{
+	u64 read_format = leader->attr.read_format;
+	struct sample_read_value *v;
+	u64 nr, ena = 0, run = 0, i;
+
+	nr = *data++;
+
+	if (nr != (u64) leader->nr_members)
+		return -EINVAL;
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
+		ena = *data++;
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
+		run = *data++;
+
+	v = (struct sample_read_value *) data;
+
+	perf_evsel__set_count(leader, cpu, thread,
+			      v[0].value, ena, run);
+
+	for (i = 1; i < nr; i++) {
+		struct perf_evsel *counter;
+
+		counter = perf_evlist__id2evsel(leader->evlist, v[i].id);
+		if (!counter)
+			return -EINVAL;
+
+		perf_evsel__set_count(counter, cpu, thread,
+				      v[i].value, ena, run);
+	}
+
+	return 0;
+}
+
+static int
+perf_evsel__read_group(struct perf_evsel *leader, int cpu, int thread)
+{
+	struct perf_stat_evsel *ps = leader->priv;
+	u64 read_format = leader->attr.read_format;
+	int size = perf_evsel__read_size(leader);
+	u64 *data = ps->group_data;
+
+	if (!(read_format & PERF_FORMAT_ID))
+		return -EINVAL;
+
+	if (!perf_evsel__is_group_leader(leader))
+		return -EINVAL;
+
+	if (!data) {
+		data = zalloc(size);
+		if (!data)
+			return -ENOMEM;
+
+		ps->group_data = data;
+	}
+
+	if (FD(leader, cpu, thread) < 0)
+		return -EINVAL;
+
+	if (readn(FD(leader, cpu, thread), data, size) <= 0)
+		return -errno;
+
+	return perf_evsel__process_group_data(leader, cpu, thread, data);
+}
+
+int perf_evsel__read_counter(struct perf_evsel *evsel, int cpu, int thread)
+{
+	u64 read_format = evsel->attr.read_format;
+
+	if (read_format & PERF_FORMAT_GROUP)
+		return perf_evsel__read_group(evsel, cpu, thread);
+	else
+		return perf_evsel__read_one(evsel, cpu, thread);
+}
+
 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
 			      int cpu, int thread, bool scale)
 {
@@ -1545,6 +1671,8 @@ fallback_missing_features:
 	if (perf_missing_features.lbr_flags)
 		evsel->attr.branch_sample_type &= ~(PERF_SAMPLE_BRANCH_NO_FLAGS |
 				     PERF_SAMPLE_BRANCH_NO_CYCLES);
+	if (perf_missing_features.group_read && evsel->attr.inherit)
+		evsel->attr.read_format &= ~(PERF_FORMAT_GROUP|PERF_FORMAT_ID);
 retry_sample_id:
 	if (perf_missing_features.sample_id_all)
 		evsel->attr.sample_id_all = 0;
@@ -1569,6 +1697,8 @@ retry_open:
 			pr_debug2("sys_perf_event_open: pid %d  cpu %d  group_fd %d  flags %#lx",
 				  pid, cpus->map[cpu], group_fd, flags);
 
+			test_attr__ready();
+
 			fd = sys_perf_event_open(&evsel->attr, pid, cpus->map[cpu],
 						 group_fd, flags);
 
@@ -1664,31 +1794,45 @@ try_fallback:
 	 */
 	if (!perf_missing_features.write_backward && evsel->attr.write_backward) {
 		perf_missing_features.write_backward = true;
+		pr_debug2("switching off write_backward\n");
 		goto out_close;
 	} else if (!perf_missing_features.clockid_wrong && evsel->attr.use_clockid) {
 		perf_missing_features.clockid_wrong = true;
+		pr_debug2("switching off clockid\n");
 		goto fallback_missing_features;
 	} else if (!perf_missing_features.clockid && evsel->attr.use_clockid) {
 		perf_missing_features.clockid = true;
+		pr_debug2("switching off use_clockid\n");
 		goto fallback_missing_features;
 	} else if (!perf_missing_features.cloexec && (flags & PERF_FLAG_FD_CLOEXEC)) {
 		perf_missing_features.cloexec = true;
+		pr_debug2("switching off cloexec flag\n");
 		goto fallback_missing_features;
 	} else if (!perf_missing_features.mmap2 && evsel->attr.mmap2) {
 		perf_missing_features.mmap2 = true;
+		pr_debug2("switching off mmap2\n");
 		goto fallback_missing_features;
 	} else if (!perf_missing_features.exclude_guest &&
 		   (evsel->attr.exclude_guest || evsel->attr.exclude_host)) {
 		perf_missing_features.exclude_guest = true;
+		pr_debug2("switching off exclude_guest, exclude_host\n");
 		goto fallback_missing_features;
 	} else if (!perf_missing_features.sample_id_all) {
 		perf_missing_features.sample_id_all = true;
+		pr_debug2("switching off sample_id_all\n");
 		goto retry_sample_id;
 	} else if (!perf_missing_features.lbr_flags &&
 			(evsel->attr.branch_sample_type &
 			 (PERF_SAMPLE_BRANCH_NO_CYCLES |
 			  PERF_SAMPLE_BRANCH_NO_FLAGS))) {
 		perf_missing_features.lbr_flags = true;
+		pr_debug2("switching off branch sample type no (cycles/flags)\n");
+		goto fallback_missing_features;
+	} else if (!perf_missing_features.group_read &&
+		    evsel->attr.inherit &&
+		   (evsel->attr.read_format & PERF_FORMAT_GROUP)) {
+		perf_missing_features.group_read = true;
+		pr_debug2("switching off group read\n");
 		goto fallback_missing_features;
 	}
 out_close:
@@ -1702,12 +1846,12 @@ out_close:
 	return err;
 }
 
-void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads)
+void perf_evsel__close(struct perf_evsel *evsel)
 {
 	if (evsel->fd == NULL)
 		return;
 
-	perf_evsel__close_fd(evsel, ncpus, nthreads);
+	perf_evsel__close_fd(evsel);
 	perf_evsel__free_fd(evsel);
 }
 
@@ -2535,7 +2679,9 @@ int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
 		 "unprivileged users (without CAP_SYS_ADMIN).\n\n"
 		 "The current value is %d:\n\n"
 		 "  -1: Allow use of (almost) all events by all users\n"
-		 ">= 0: Disallow raw tracepoint access by users without CAP_IOC_LOCK\n"
+		 "      Ignore mlock limit after perf_event_mlock_kb without CAP_IPC_LOCK\n"
+		 ">= 0: Disallow ftrace function tracepoint by users without CAP_SYS_ADMIN\n"
+		 "      Disallow raw tracepoint access by users without CAP_SYS_ADMIN\n"
 		 ">= 1: Disallow CPU event access by users without CAP_SYS_ADMIN\n"
 		 ">= 2: Disallow kernel profiling by users without CAP_SYS_ADMIN\n\n"
 		 "To make this setting permanent, edit /etc/sysctl.conf too, e.g.:\n\n"
@@ -2610,3 +2756,10 @@ char *perf_evsel__env_arch(struct perf_evsel *evsel)
 		return evsel->evlist->env->arch;
 	return NULL;
 }
+
+char *perf_evsel__env_cpuid(struct perf_evsel *evsel)
+{
+	if (evsel && evsel->evlist && evsel->evlist->env)
+		return evsel->evlist->env->cpuid;
+	return NULL;
+}
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index d101695c482c..351d3b2d8887 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -185,7 +185,7 @@ static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *
 	return perf_evsel__newtp_idx(sys, name, 0);
 }
 
-struct perf_evsel *perf_evsel__new_cycles(void);
+struct perf_evsel *perf_evsel__new_cycles(bool precise);
 
 struct event_format *event_format__new(const char *sys, const char *name);
 
@@ -226,7 +226,7 @@ const char *perf_evsel__group_name(struct perf_evsel *evsel);
 int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size);
 
 int perf_evsel__alloc_id(struct perf_evsel *evsel, int ncpus, int nthreads);
-void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__close_fd(struct perf_evsel *evsel);
 
 void __perf_evsel__set_sample_bit(struct perf_evsel *evsel,
 				  enum perf_event_sample_format bit);
@@ -246,8 +246,7 @@ int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
 int perf_evsel__append_tp_filter(struct perf_evsel *evsel, const char *filter);
 int perf_evsel__append_addr_filter(struct perf_evsel *evsel,
 				   const char *filter);
-int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
-			     const char *filter);
+int perf_evsel__apply_filter(struct perf_evsel *evsel, const char *filter);
 int perf_evsel__enable(struct perf_evsel *evsel);
 int perf_evsel__disable(struct perf_evsel *evsel);
 
@@ -257,7 +256,7 @@ int perf_evsel__open_per_thread(struct perf_evsel *evsel,
 				struct thread_map *threads);
 int perf_evsel__open(struct perf_evsel *evsel, struct cpu_map *cpus,
 		     struct thread_map *threads);
-void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__close(struct perf_evsel *evsel);
 
 struct perf_sample;
 
@@ -299,6 +298,8 @@ static inline bool perf_evsel__match2(struct perf_evsel *e1,
 int perf_evsel__read(struct perf_evsel *evsel, int cpu, int thread,
 		     struct perf_counts_values *count);
 
+int perf_evsel__read_counter(struct perf_evsel *evsel, int cpu, int thread);
+
 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
 			      int cpu, int thread, bool scale);
 
@@ -436,5 +437,6 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
 			     attr__fprintf_f attr__fprintf, void *priv);
 
 char *perf_evsel__env_arch(struct perf_evsel *evsel);
+char *perf_evsel__env_cpuid(struct perf_evsel *evsel);
 
 #endif /* __PERF_EVSEL_H */
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 9c2760a1a96e..400ef9eab00a 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -1,7 +1,7 @@
 #ifndef PARSE_CTX_H
 #define PARSE_CTX_H 1
 
-#define EXPR_MAX_OTHER 8
+#define EXPR_MAX_OTHER 15
 #define MAX_PARSE_ID EXPR_MAX_OTHER
 
 struct parse_id {
diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y
index 954556bea36e..432b8560cf51 100644
--- a/tools/perf/util/expr.y
+++ b/tools/perf/util/expr.y
@@ -4,6 +4,7 @@
 #include "util/debug.h"
 #define IN_EXPR_Y 1
 #include "expr.h"
+#include "smt.h"
 #include <string.h>
 
 #define MAXIDLEN 256
@@ -22,13 +23,15 @@
 
 %token <num> NUMBER
 %token <id> ID
+%token MIN MAX IF ELSE SMT_ON
+%left MIN MAX IF
 %left '|'
 %left '^'
 %left '&'
 %left '-' '+'
 %left '*' '/' '%'
 %left NEG NOT
-%type <num> expr
+%type <num> expr if_expr
 
 %{
 static int expr__lex(YYSTYPE *res, const char **pp);
@@ -57,22 +60,33 @@ static int lookup_id(struct parse_ctx *ctx, char *id, double *val)
 %}
 %%
 
-all_expr: expr			{ *final_val = $1; }
+all_expr: if_expr			{ *final_val = $1; }
+	;
+
+if_expr:
+	expr IF expr ELSE expr { $$ = $3 ? $1 : $5; }
+	| expr
 	;
 
 expr:	  NUMBER
 	| ID			{ if (lookup_id(ctx, $1, &$$) < 0) {
-					pr_debug("%s not found", $1);
+					pr_debug("%s not found\n", $1);
 					YYABORT;
 				  }
 				}
+	| expr '|' expr		{ $$ = (long)$1 | (long)$3; }
+	| expr '&' expr		{ $$ = (long)$1 & (long)$3; }
+	| expr '^' expr		{ $$ = (long)$1 ^ (long)$3; }
 	| expr '+' expr		{ $$ = $1 + $3; }
 	| expr '-' expr		{ $$ = $1 - $3; }
 	| expr '*' expr		{ $$ = $1 * $3; }
 	| expr '/' expr		{ if ($3 == 0) YYABORT; $$ = $1 / $3; }
 	| expr '%' expr		{ if ((long)$3 == 0) YYABORT; $$ = (long)$1 % (long)$3; }
 	| '-' expr %prec NEG	{ $$ = -$2; }
-	| '(' expr ')'		{ $$ = $2; }
+	| '(' if_expr ')'	{ $$ = $2; }
+	| MIN '(' expr ',' expr ')' { $$ = $3 < $5 ? $3 : $5; }
+	| MAX '(' expr ',' expr ')' { $$ = $3 > $5 ? $3 : $5; }
+	| SMT_ON		 { $$ = smt_on() > 0; }
 	;
 
 %%
@@ -82,13 +96,47 @@ static int expr__symbol(YYSTYPE *res, const char *p, const char **pp)
 	char *dst = res->id;
 	const char *s = p;
 
-	while (isalnum(*p) || *p == '_' || *p == '.') {
+	if (*p == '#')
+		*dst++ = *p++;
+
+	while (isalnum(*p) || *p == '_' || *p == '.' || *p == ':' || *p == '@' || *p == '\\') {
 		if (p - s >= MAXIDLEN)
 			return -1;
-		*dst++ = *p++;
+		/*
+		 * Allow @ instead of / to be able to specify pmu/event/ without
+		 * conflicts with normal division.
+		 */
+		if (*p == '@')
+			*dst++ = '/';
+		else if (*p == '\\')
+			*dst++ = *++p;
+		else
+			*dst++ = *p;
+		p++;
 	}
 	*dst = 0;
 	*pp = p;
+	dst = res->id;
+	switch (dst[0]) {
+	case 'm':
+		if (!strcmp(dst, "min"))
+			return MIN;
+		if (!strcmp(dst, "max"))
+			return MAX;
+		break;
+	case 'i':
+		if (!strcmp(dst, "if"))
+			return IF;
+		break;
+	case 'e':
+		if (!strcmp(dst, "else"))
+			return ELSE;
+		break;
+	case '#':
+		if (!strcasecmp(dst, "#smt_on"))
+			return SMT_ON;
+		break;
+	}
 	return ID;
 }
 
@@ -102,6 +150,7 @@ static int expr__lex(YYSTYPE *res, const char **pp)
 		p++;
 	s = p;
 	switch (*p++) {
+	case '#':
 	case 'a' ... 'z':
 	case 'A' ... 'Z':
 		return expr__symbol(res, p - 1, pp);
@@ -132,6 +181,19 @@ void expr__ctx_init(struct parse_ctx *ctx)
 	ctx->num_ids = 0;
 }
 
+static bool already_seen(const char *val, const char *one, const char **other,
+			 int num_other)
+{
+	int i;
+
+	if (one && !strcasecmp(one, val))
+		return true;
+	for (i = 0; i < num_other; i++)
+		if (!strcasecmp(other[i], val))
+			return true;
+	return false;
+}
+
 int expr__find_other(const char *p, const char *one, const char ***other,
 		     int *num_otherp)
 {
@@ -151,7 +213,7 @@ int expr__find_other(const char *p, const char *one, const char ***other,
 			err = 0;
 			break;
 		}
-		if (tok == ID && strcasecmp(one, val.id)) {
+		if (tok == ID && !already_seen(val.id, one, *other, num_other)) {
 			if (num_other >= EXPR_MAX_OTHER - 1) {
 				pr_debug("Too many extra events in %s\n", orig);
 				break;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 76ed7d03e500..605bbd5404fb 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -12,6 +12,7 @@
 #include <linux/list.h>
 #include <linux/kernel.h>
 #include <linux/bitops.h>
+#include <linux/stringify.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/utsname.h>
@@ -34,6 +35,7 @@
 #include "data.h"
 #include <api/fs/fs.h>
 #include "asm/bug.h"
+#include "tool.h"
 
 #include "sane_ctype.h"
 
@@ -59,6 +61,15 @@ struct perf_file_attr {
 	struct perf_file_section	ids;
 };
 
+struct feat_fd {
+	struct perf_header	*ph;
+	int			fd;
+	void			*buf;	/* Either buf != NULL or fd >= 0 */
+	ssize_t			offset;
+	size_t			size;
+	struct perf_evsel	*events;
+};
+
 void perf_header__set_feat(struct perf_header *header, int feat)
 {
 	set_bit(feat, header->adds_features);
@@ -74,28 +85,60 @@ bool perf_header__has_feat(const struct perf_header *header, int feat)
 	return test_bit(feat, header->adds_features);
 }
 
-static int do_write(int fd, const void *buf, size_t size)
+static int __do_write_fd(struct feat_fd *ff, const void *buf, size_t size)
 {
-	while (size) {
-		int ret = write(fd, buf, size);
+	ssize_t ret = writen(ff->fd, buf, size);
 
-		if (ret < 0)
-			return -errno;
+	if (ret != (ssize_t)size)
+		return ret < 0 ? (int)ret : -1;
+	return 0;
+}
+
+static int __do_write_buf(struct feat_fd *ff,  const void *buf, size_t size)
+{
+	/* struct perf_event_header::size is u16 */
+	const size_t max_size = 0xffff - sizeof(struct perf_event_header);
+	size_t new_size = ff->size;
+	void *addr;
 
-		size -= ret;
-		buf += ret;
+	if (size + ff->offset > max_size)
+		return -E2BIG;
+
+	while (size > (new_size - ff->offset))
+		new_size <<= 1;
+	new_size = min(max_size, new_size);
+
+	if (ff->size < new_size) {
+		addr = realloc(ff->buf, new_size);
+		if (!addr)
+			return -ENOMEM;
+		ff->buf = addr;
+		ff->size = new_size;
 	}
 
+	memcpy(ff->buf + ff->offset, buf, size);
+	ff->offset += size;
+
 	return 0;
 }
 
-int write_padded(int fd, const void *bf, size_t count, size_t count_aligned)
+/* Return: 0 if succeded, -ERR if failed. */
+int do_write(struct feat_fd *ff, const void *buf, size_t size)
+{
+	if (!ff->buf)
+		return __do_write_fd(ff, buf, size);
+	return __do_write_buf(ff, buf, size);
+}
+
+/* Return: 0 if succeded, -ERR if failed. */
+int write_padded(struct feat_fd *ff, const void *bf,
+		 size_t count, size_t count_aligned)
 {
 	static const char zero_buf[NAME_ALIGN];
-	int err = do_write(fd, bf, count);
+	int err = do_write(ff, bf, count);
 
 	if (!err)
-		err = do_write(fd, zero_buf, count_aligned - count);
+		err = do_write(ff, zero_buf, count_aligned - count);
 
 	return err;
 }
@@ -103,7 +146,8 @@ int write_padded(int fd, const void *bf, size_t count, size_t count_aligned)
 #define string_size(str)						\
 	(PERF_ALIGN((strlen(str) + 1), NAME_ALIGN) + sizeof(u32))
 
-static int do_write_string(int fd, const char *str)
+/* Return: 0 if succeded, -ERR if failed. */
+static int do_write_string(struct feat_fd *ff, const char *str)
 {
 	u32 len, olen;
 	int ret;
@@ -112,32 +156,80 @@ static int do_write_string(int fd, const char *str)
 	len = PERF_ALIGN(olen, NAME_ALIGN);
 
 	/* write len, incl. \0 */
-	ret = do_write(fd, &len, sizeof(len));
+	ret = do_write(ff, &len, sizeof(len));
 	if (ret < 0)
 		return ret;
 
-	return write_padded(fd, str, olen, len);
+	return write_padded(ff, str, olen, len);
 }
 
-static char *do_read_string(int fd, struct perf_header *ph)
+static int __do_read_fd(struct feat_fd *ff, void *addr, ssize_t size)
+{
+	ssize_t ret = readn(ff->fd, addr, size);
+
+	if (ret != size)
+		return ret < 0 ? (int)ret : -1;
+	return 0;
+}
+
+static int __do_read_buf(struct feat_fd *ff, void *addr, ssize_t size)
+{
+	if (size > (ssize_t)ff->size - ff->offset)
+		return -1;
+
+	memcpy(addr, ff->buf + ff->offset, size);
+	ff->offset += size;
+
+	return 0;
+
+}
+
+static int __do_read(struct feat_fd *ff, void *addr, ssize_t size)
+{
+	if (!ff->buf)
+		return __do_read_fd(ff, addr, size);
+	return __do_read_buf(ff, addr, size);
+}
+
+static int do_read_u32(struct feat_fd *ff, u32 *addr)
+{
+	int ret;
+
+	ret = __do_read(ff, addr, sizeof(*addr));
+	if (ret)
+		return ret;
+
+	if (ff->ph->needs_swap)
+		*addr = bswap_32(*addr);
+	return 0;
+}
+
+static int do_read_u64(struct feat_fd *ff, u64 *addr)
+{
+	int ret;
+
+	ret = __do_read(ff, addr, sizeof(*addr));
+	if (ret)
+		return ret;
+
+	if (ff->ph->needs_swap)
+		*addr = bswap_64(*addr);
+	return 0;
+}
+
+static char *do_read_string(struct feat_fd *ff)
 {
-	ssize_t sz, ret;
 	u32 len;
 	char *buf;
 
-	sz = readn(fd, &len, sizeof(len));
-	if (sz < (ssize_t)sizeof(len))
+	if (do_read_u32(ff, &len))
 		return NULL;
 
-	if (ph->needs_swap)
-		len = bswap_32(len);
-
 	buf = malloc(len);
 	if (!buf)
 		return NULL;
 
-	ret = readn(fd, buf, len);
-	if (ret == (ssize_t)len) {
+	if (!__do_read(ff, buf, len)) {
 		/*
 		 * strings are padded by zeroes
 		 * thus the actual strlen of buf
@@ -150,25 +242,30 @@ static char *do_read_string(int fd, struct perf_header *ph)
 	return NULL;
 }
 
-static int write_tracing_data(int fd, struct perf_header *h __maybe_unused,
-			    struct perf_evlist *evlist)
+static int write_tracing_data(struct feat_fd *ff,
+			      struct perf_evlist *evlist)
 {
-	return read_tracing_data(fd, &evlist->entries);
-}
+	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))
+		return -1;
 
+	return read_tracing_data(ff->fd, &evlist->entries);
+}
 
-static int write_build_id(int fd, struct perf_header *h,
+static int write_build_id(struct feat_fd *ff,
 			  struct perf_evlist *evlist __maybe_unused)
 {
 	struct perf_session *session;
 	int err;
 
-	session = container_of(h, struct perf_session, header);
+	session = container_of(ff->ph, struct perf_session, header);
 
 	if (!perf_session__read_build_ids(session, true))
 		return -1;
 
-	err = perf_session__write_buildid_table(session, fd);
+	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))
+		return -1;
+
+	err = perf_session__write_buildid_table(session, ff);
 	if (err < 0) {
 		pr_debug("failed to write buildid table\n");
 		return err;
@@ -178,7 +275,7 @@ static int write_build_id(int fd, struct perf_header *h,
 	return 0;
 }
 
-static int write_hostname(int fd, struct perf_header *h __maybe_unused,
+static int write_hostname(struct feat_fd *ff,
 			  struct perf_evlist *evlist __maybe_unused)
 {
 	struct utsname uts;
@@ -188,10 +285,10 @@ static int write_hostname(int fd, struct perf_header *h __maybe_unused,
 	if (ret < 0)
 		return -1;
 
-	return do_write_string(fd, uts.nodename);
+	return do_write_string(ff, uts.nodename);
 }
 
-static int write_osrelease(int fd, struct perf_header *h __maybe_unused,
+static int write_osrelease(struct feat_fd *ff,
 			   struct perf_evlist *evlist __maybe_unused)
 {
 	struct utsname uts;
@@ -201,10 +298,10 @@ static int write_osrelease(int fd, struct perf_header *h __maybe_unused,
 	if (ret < 0)
 		return -1;
 
-	return do_write_string(fd, uts.release);
+	return do_write_string(ff, uts.release);
 }
 
-static int write_arch(int fd, struct perf_header *h __maybe_unused,
+static int write_arch(struct feat_fd *ff,
 		      struct perf_evlist *evlist __maybe_unused)
 {
 	struct utsname uts;
@@ -214,16 +311,16 @@ static int write_arch(int fd, struct perf_header *h __maybe_unused,
 	if (ret < 0)
 		return -1;
 
-	return do_write_string(fd, uts.machine);
+	return do_write_string(ff, uts.machine);
 }
 
-static int write_version(int fd, struct perf_header *h __maybe_unused,
+static int write_version(struct feat_fd *ff,
 			 struct perf_evlist *evlist __maybe_unused)
 {
-	return do_write_string(fd, perf_version_string);
+	return do_write_string(ff, perf_version_string);
 }
 
-static int __write_cpudesc(int fd, const char *cpuinfo_proc)
+static int __write_cpudesc(struct feat_fd *ff, const char *cpuinfo_proc)
 {
 	FILE *file;
 	char *buf = NULL;
@@ -273,25 +370,22 @@ static int __write_cpudesc(int fd, const char *cpuinfo_proc)
 		}
 		p++;
 	}
-	ret = do_write_string(fd, s);
+	ret = do_write_string(ff, s);
 done:
 	free(buf);
 	fclose(file);
 	return ret;
 }
 
-static int write_cpudesc(int fd, struct perf_header *h __maybe_unused,
+static int write_cpudesc(struct feat_fd *ff,
 		       struct perf_evlist *evlist __maybe_unused)
 {
-#ifndef CPUINFO_PROC
-#define CPUINFO_PROC {"model name", }
-#endif
 	const char *cpuinfo_procs[] = CPUINFO_PROC;
 	unsigned int i;
 
 	for (i = 0; i < ARRAY_SIZE(cpuinfo_procs); i++) {
 		int ret;
-		ret = __write_cpudesc(fd, cpuinfo_procs[i]);
+		ret = __write_cpudesc(ff, cpuinfo_procs[i]);
 		if (ret >= 0)
 			return ret;
 	}
@@ -299,7 +393,7 @@ static int write_cpudesc(int fd, struct perf_header *h __maybe_unused,
 }
 
 
-static int write_nrcpus(int fd, struct perf_header *h __maybe_unused,
+static int write_nrcpus(struct feat_fd *ff,
 			struct perf_evlist *evlist __maybe_unused)
 {
 	long nr;
@@ -314,14 +408,14 @@ static int write_nrcpus(int fd, struct perf_header *h __maybe_unused,
 
 	nra = (u32)(nr & UINT_MAX);
 
-	ret = do_write(fd, &nrc, sizeof(nrc));
+	ret = do_write(ff, &nrc, sizeof(nrc));
 	if (ret < 0)
 		return ret;
 
-	return do_write(fd, &nra, sizeof(nra));
+	return do_write(ff, &nra, sizeof(nra));
 }
 
-static int write_event_desc(int fd, struct perf_header *h __maybe_unused,
+static int write_event_desc(struct feat_fd *ff,
 			    struct perf_evlist *evlist)
 {
 	struct perf_evsel *evsel;
@@ -333,7 +427,7 @@ static int write_event_desc(int fd, struct perf_header *h __maybe_unused,
 	/*
 	 * write number of events
 	 */
-	ret = do_write(fd, &nre, sizeof(nre));
+	ret = do_write(ff, &nre, sizeof(nre));
 	if (ret < 0)
 		return ret;
 
@@ -341,12 +435,12 @@ static int write_event_desc(int fd, struct perf_header *h __maybe_unused,
 	 * size of perf_event_attr struct
 	 */
 	sz = (u32)sizeof(evsel->attr);
-	ret = do_write(fd, &sz, sizeof(sz));
+	ret = do_write(ff, &sz, sizeof(sz));
 	if (ret < 0)
 		return ret;
 
 	evlist__for_each_entry(evlist, evsel) {
-		ret = do_write(fd, &evsel->attr, sz);
+		ret = do_write(ff, &evsel->attr, sz);
 		if (ret < 0)
 			return ret;
 		/*
@@ -357,27 +451,27 @@ static int write_event_desc(int fd, struct perf_header *h __maybe_unused,
 		 * type of ids,
 		 */
 		nri = evsel->ids;
-		ret = do_write(fd, &nri, sizeof(nri));
+		ret = do_write(ff, &nri, sizeof(nri));
 		if (ret < 0)
 			return ret;
 
 		/*
 		 * write event string as passed on cmdline
 		 */
-		ret = do_write_string(fd, perf_evsel__name(evsel));
+		ret = do_write_string(ff, perf_evsel__name(evsel));
 		if (ret < 0)
 			return ret;
 		/*
 		 * write unique ids for this event
 		 */
-		ret = do_write(fd, evsel->id, evsel->ids * sizeof(u64));
+		ret = do_write(ff, evsel->id, evsel->ids * sizeof(u64));
 		if (ret < 0)
 			return ret;
 	}
 	return 0;
 }
 
-static int write_cmdline(int fd, struct perf_header *h __maybe_unused,
+static int write_cmdline(struct feat_fd *ff,
 			 struct perf_evlist *evlist __maybe_unused)
 {
 	char buf[MAXPATHLEN];
@@ -395,16 +489,16 @@ static int write_cmdline(int fd, struct perf_header *h __maybe_unused,
 	/* account for binary path */
 	n = perf_env.nr_cmdline + 1;
 
-	ret = do_write(fd, &n, sizeof(n));
+	ret = do_write(ff, &n, sizeof(n));
 	if (ret < 0)
 		return ret;
 
-	ret = do_write_string(fd, buf);
+	ret = do_write_string(ff, buf);
 	if (ret < 0)
 		return ret;
 
 	for (i = 0 ; i < perf_env.nr_cmdline; i++) {
-		ret = do_write_string(fd, perf_env.cmdline_argv[i]);
+		ret = do_write_string(ff, perf_env.cmdline_argv[i]);
 		if (ret < 0)
 			return ret;
 	}
@@ -557,8 +651,8 @@ out_free:
 	return tp;
 }
 
-static int write_cpu_topology(int fd, struct perf_header *h __maybe_unused,
-			  struct perf_evlist *evlist __maybe_unused)
+static int write_cpu_topology(struct feat_fd *ff,
+			      struct perf_evlist *evlist __maybe_unused)
 {
 	struct cpu_topo *tp;
 	u32 i;
@@ -568,21 +662,21 @@ static int write_cpu_topology(int fd, struct perf_header *h __maybe_unused,
 	if (!tp)
 		return -1;
 
-	ret = do_write(fd, &tp->core_sib, sizeof(tp->core_sib));
+	ret = do_write(ff, &tp->core_sib, sizeof(tp->core_sib));
 	if (ret < 0)
 		goto done;
 
 	for (i = 0; i < tp->core_sib; i++) {
-		ret = do_write_string(fd, tp->core_siblings[i]);
+		ret = do_write_string(ff, tp->core_siblings[i]);
 		if (ret < 0)
 			goto done;
 	}
-	ret = do_write(fd, &tp->thread_sib, sizeof(tp->thread_sib));
+	ret = do_write(ff, &tp->thread_sib, sizeof(tp->thread_sib));
 	if (ret < 0)
 		goto done;
 
 	for (i = 0; i < tp->thread_sib; i++) {
-		ret = do_write_string(fd, tp->thread_siblings[i]);
+		ret = do_write_string(ff, tp->thread_siblings[i]);
 		if (ret < 0)
 			break;
 	}
@@ -592,11 +686,11 @@ static int write_cpu_topology(int fd, struct perf_header *h __maybe_unused,
 		goto done;
 
 	for (j = 0; j < perf_env.nr_cpus_avail; j++) {
-		ret = do_write(fd, &perf_env.cpu[j].core_id,
+		ret = do_write(ff, &perf_env.cpu[j].core_id,
 			       sizeof(perf_env.cpu[j].core_id));
 		if (ret < 0)
 			return ret;
-		ret = do_write(fd, &perf_env.cpu[j].socket_id,
+		ret = do_write(ff, &perf_env.cpu[j].socket_id,
 			       sizeof(perf_env.cpu[j].socket_id));
 		if (ret < 0)
 			return ret;
@@ -608,8 +702,8 @@ done:
 
 
 
-static int write_total_mem(int fd, struct perf_header *h __maybe_unused,
-			  struct perf_evlist *evlist __maybe_unused)
+static int write_total_mem(struct feat_fd *ff,
+			   struct perf_evlist *evlist __maybe_unused)
 {
 	char *buf = NULL;
 	FILE *fp;
@@ -629,7 +723,7 @@ static int write_total_mem(int fd, struct perf_header *h __maybe_unused,
 	if (!ret) {
 		n = sscanf(buf, "%*s %"PRIu64, &mem);
 		if (n == 1)
-			ret = do_write(fd, &mem, sizeof(mem));
+			ret = do_write(ff, &mem, sizeof(mem));
 	} else
 		ret = -1;
 	free(buf);
@@ -637,7 +731,7 @@ static int write_total_mem(int fd, struct perf_header *h __maybe_unused,
 	return ret;
 }
 
-static int write_topo_node(int fd, int node)
+static int write_topo_node(struct feat_fd *ff, int node)
 {
 	char str[MAXPATHLEN];
 	char field[32];
@@ -667,11 +761,11 @@ static int write_topo_node(int fd, int node)
 	fclose(fp);
 	fp = NULL;
 
-	ret = do_write(fd, &mem_total, sizeof(u64));
+	ret = do_write(ff, &mem_total, sizeof(u64));
 	if (ret)
 		goto done;
 
-	ret = do_write(fd, &mem_free, sizeof(u64));
+	ret = do_write(ff, &mem_free, sizeof(u64));
 	if (ret)
 		goto done;
 
@@ -689,7 +783,7 @@ static int write_topo_node(int fd, int node)
 	if (p)
 		*p = '\0';
 
-	ret = do_write_string(fd, buf);
+	ret = do_write_string(ff, buf);
 done:
 	free(buf);
 	if (fp)
@@ -697,8 +791,8 @@ done:
 	return ret;
 }
 
-static int write_numa_topology(int fd, struct perf_header *h __maybe_unused,
-			  struct perf_evlist *evlist __maybe_unused)
+static int write_numa_topology(struct feat_fd *ff,
+			       struct perf_evlist *evlist __maybe_unused)
 {
 	char *buf = NULL;
 	size_t len = 0;
@@ -725,17 +819,17 @@ static int write_numa_topology(int fd, struct perf_header *h __maybe_unused,
 
 	nr = (u32)node_map->nr;
 
-	ret = do_write(fd, &nr, sizeof(nr));
+	ret = do_write(ff, &nr, sizeof(nr));
 	if (ret < 0)
 		goto done;
 
 	for (i = 0; i < nr; i++) {
 		j = (u32)node_map->map[i];
-		ret = do_write(fd, &j, sizeof(j));
+		ret = do_write(ff, &j, sizeof(j));
 		if (ret < 0)
 			break;
 
-		ret = write_topo_node(fd, i);
+		ret = write_topo_node(ff, i);
 		if (ret < 0)
 			break;
 	}
@@ -758,39 +852,40 @@ done:
  * };
  */
 
-static int write_pmu_mappings(int fd, struct perf_header *h __maybe_unused,
+static int write_pmu_mappings(struct feat_fd *ff,
 			      struct perf_evlist *evlist __maybe_unused)
 {
 	struct perf_pmu *pmu = NULL;
-	off_t offset = lseek(fd, 0, SEEK_CUR);
-	__u32 pmu_num = 0;
+	u32 pmu_num = 0;
 	int ret;
 
-	/* write real pmu_num later */
-	ret = do_write(fd, &pmu_num, sizeof(pmu_num));
+	/*
+	 * Do a first pass to count number of pmu to avoid lseek so this
+	 * works in pipe mode as well.
+	 */
+	while ((pmu = perf_pmu__scan(pmu))) {
+		if (!pmu->name)
+			continue;
+		pmu_num++;
+	}
+
+	ret = do_write(ff, &pmu_num, sizeof(pmu_num));
 	if (ret < 0)
 		return ret;
 
 	while ((pmu = perf_pmu__scan(pmu))) {
 		if (!pmu->name)
 			continue;
-		pmu_num++;
 
-		ret = do_write(fd, &pmu->type, sizeof(pmu->type));
+		ret = do_write(ff, &pmu->type, sizeof(pmu->type));
 		if (ret < 0)
 			return ret;
 
-		ret = do_write_string(fd, pmu->name);
+		ret = do_write_string(ff, pmu->name);
 		if (ret < 0)
 			return ret;
 	}
 
-	if (pwrite(fd, &pmu_num, sizeof(pmu_num), offset) != sizeof(pmu_num)) {
-		/* discard all */
-		lseek(fd, offset, SEEK_SET);
-		return -1;
-	}
-
 	return 0;
 }
 
@@ -806,14 +901,14 @@ static int write_pmu_mappings(int fd, struct perf_header *h __maybe_unused,
  *	}[nr_groups];
  * };
  */
-static int write_group_desc(int fd, struct perf_header *h __maybe_unused,
+static int write_group_desc(struct feat_fd *ff,
 			    struct perf_evlist *evlist)
 {
 	u32 nr_groups = evlist->nr_groups;
 	struct perf_evsel *evsel;
 	int ret;
 
-	ret = do_write(fd, &nr_groups, sizeof(nr_groups));
+	ret = do_write(ff, &nr_groups, sizeof(nr_groups));
 	if (ret < 0)
 		return ret;
 
@@ -824,15 +919,15 @@ static int write_group_desc(int fd, struct perf_header *h __maybe_unused,
 			u32 leader_idx = evsel->idx;
 			u32 nr_members = evsel->nr_members;
 
-			ret = do_write_string(fd, name);
+			ret = do_write_string(ff, name);
 			if (ret < 0)
 				return ret;
 
-			ret = do_write(fd, &leader_idx, sizeof(leader_idx));
+			ret = do_write(ff, &leader_idx, sizeof(leader_idx));
 			if (ret < 0)
 				return ret;
 
-			ret = do_write(fd, &nr_members, sizeof(nr_members));
+			ret = do_write(ff, &nr_members, sizeof(nr_members));
 			if (ret < 0)
 				return ret;
 		}
@@ -849,7 +944,7 @@ int __weak get_cpuid(char *buffer __maybe_unused, size_t sz __maybe_unused)
 	return -1;
 }
 
-static int write_cpuid(int fd, struct perf_header *h __maybe_unused,
+static int write_cpuid(struct feat_fd *ff,
 		       struct perf_evlist *evlist __maybe_unused)
 {
 	char buffer[64];
@@ -861,25 +956,27 @@ static int write_cpuid(int fd, struct perf_header *h __maybe_unused,
 
 	return -1;
 write_it:
-	return do_write_string(fd, buffer);
+	return do_write_string(ff, buffer);
 }
 
-static int write_branch_stack(int fd __maybe_unused,
-			      struct perf_header *h __maybe_unused,
-		       struct perf_evlist *evlist __maybe_unused)
+static int write_branch_stack(struct feat_fd *ff __maybe_unused,
+			      struct perf_evlist *evlist __maybe_unused)
 {
 	return 0;
 }
 
-static int write_auxtrace(int fd, struct perf_header *h,
+static int write_auxtrace(struct feat_fd *ff,
 			  struct perf_evlist *evlist __maybe_unused)
 {
 	struct perf_session *session;
 	int err;
 
-	session = container_of(h, struct perf_session, header);
+	if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))
+		return -1;
+
+	session = container_of(ff->ph, struct perf_session, header);
 
-	err = auxtrace_index__write(fd, &session->auxtrace_index);
+	err = auxtrace_index__write(ff->fd, &session->auxtrace_index);
 	if (err < 0)
 		pr_err("Failed to write auxtrace index\n");
 	return err;
@@ -1026,8 +1123,8 @@ static int build_caches(struct cpu_cache_level caches[], u32 size, u32 *cntp)
 
 #define MAX_CACHES 2000
 
-static int write_cache(int fd, struct perf_header *h __maybe_unused,
-			  struct perf_evlist *evlist __maybe_unused)
+static int write_cache(struct feat_fd *ff,
+		       struct perf_evlist *evlist __maybe_unused)
 {
 	struct cpu_cache_level caches[MAX_CACHES];
 	u32 cnt = 0, i, version = 1;
@@ -1039,11 +1136,11 @@ static int write_cache(int fd, struct perf_header *h __maybe_unused,
 
 	qsort(&caches, cnt, sizeof(struct cpu_cache_level), cpu_cache_level__sort);
 
-	ret = do_write(fd, &version, sizeof(u32));
+	ret = do_write(ff, &version, sizeof(u32));
 	if (ret < 0)
 		goto out;
 
-	ret = do_write(fd, &cnt, sizeof(u32));
+	ret = do_write(ff, &cnt, sizeof(u32));
 	if (ret < 0)
 		goto out;
 
@@ -1051,7 +1148,7 @@ static int write_cache(int fd, struct perf_header *h __maybe_unused,
 		struct cpu_cache_level *c = &caches[i];
 
 		#define _W(v)					\
-			ret = do_write(fd, &c->v, sizeof(u32));	\
+			ret = do_write(ff, &c->v, sizeof(u32));	\
 			if (ret < 0)				\
 				goto out;
 
@@ -1062,7 +1159,7 @@ static int write_cache(int fd, struct perf_header *h __maybe_unused,
 		#undef _W
 
 		#define _W(v)						\
-			ret = do_write_string(fd, (const char *) c->v);	\
+			ret = do_write_string(ff, (const char *) c->v);	\
 			if (ret < 0)					\
 				goto out;
 
@@ -1078,69 +1175,62 @@ out:
 	return ret;
 }
 
-static int write_stat(int fd __maybe_unused,
-		      struct perf_header *h __maybe_unused,
+static int write_stat(struct feat_fd *ff __maybe_unused,
 		      struct perf_evlist *evlist __maybe_unused)
 {
 	return 0;
 }
 
-static void print_hostname(struct perf_header *ph, int fd __maybe_unused,
-			   FILE *fp)
+static void print_hostname(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# hostname : %s\n", ph->env.hostname);
+	fprintf(fp, "# hostname : %s\n", ff->ph->env.hostname);
 }
 
-static void print_osrelease(struct perf_header *ph, int fd __maybe_unused,
-			    FILE *fp)
+static void print_osrelease(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# os release : %s\n", ph->env.os_release);
+	fprintf(fp, "# os release : %s\n", ff->ph->env.os_release);
 }
 
-static void print_arch(struct perf_header *ph, int fd __maybe_unused, FILE *fp)
+static void print_arch(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# arch : %s\n", ph->env.arch);
+	fprintf(fp, "# arch : %s\n", ff->ph->env.arch);
 }
 
-static void print_cpudesc(struct perf_header *ph, int fd __maybe_unused,
-			  FILE *fp)
+static void print_cpudesc(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# cpudesc : %s\n", ph->env.cpu_desc);
+	fprintf(fp, "# cpudesc : %s\n", ff->ph->env.cpu_desc);
 }
 
-static void print_nrcpus(struct perf_header *ph, int fd __maybe_unused,
-			 FILE *fp)
+static void print_nrcpus(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# nrcpus online : %u\n", ph->env.nr_cpus_online);
-	fprintf(fp, "# nrcpus avail : %u\n", ph->env.nr_cpus_avail);
+	fprintf(fp, "# nrcpus online : %u\n", ff->ph->env.nr_cpus_online);
+	fprintf(fp, "# nrcpus avail : %u\n", ff->ph->env.nr_cpus_avail);
 }
 
-static void print_version(struct perf_header *ph, int fd __maybe_unused,
-			  FILE *fp)
+static void print_version(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# perf version : %s\n", ph->env.version);
+	fprintf(fp, "# perf version : %s\n", ff->ph->env.version);
 }
 
-static void print_cmdline(struct perf_header *ph, int fd __maybe_unused,
-			  FILE *fp)
+static void print_cmdline(struct feat_fd *ff, FILE *fp)
 {
 	int nr, i;
 
-	nr = ph->env.nr_cmdline;
+	nr = ff->ph->env.nr_cmdline;
 
 	fprintf(fp, "# cmdline : ");
 
 	for (i = 0; i < nr; i++)
-		fprintf(fp, "%s ", ph->env.cmdline_argv[i]);
+		fprintf(fp, "%s ", ff->ph->env.cmdline_argv[i]);
 	fputc('\n', fp);
 }
 
-static void print_cpu_topology(struct perf_header *ph, int fd __maybe_unused,
-			       FILE *fp)
+static void print_cpu_topology(struct feat_fd *ff, FILE *fp)
 {
+	struct perf_header *ph = ff->ph;
+	int cpu_nr = ph->env.nr_cpus_avail;
 	int nr, i;
 	char *str;
-	int cpu_nr = ph->env.nr_cpus_avail;
 
 	nr = ph->env.nr_sibling_cores;
 	str = ph->env.sibling_cores;
@@ -1181,31 +1271,21 @@ static void free_event_desc(struct perf_evsel *events)
 	free(events);
 }
 
-static struct perf_evsel *
-read_event_desc(struct perf_header *ph, int fd)
+static struct perf_evsel *read_event_desc(struct feat_fd *ff)
 {
 	struct perf_evsel *evsel, *events = NULL;
 	u64 *id;
 	void *buf = NULL;
 	u32 nre, sz, nr, i, j;
-	ssize_t ret;
 	size_t msz;
 
 	/* number of events */
-	ret = readn(fd, &nre, sizeof(nre));
-	if (ret != (ssize_t)sizeof(nre))
+	if (do_read_u32(ff, &nre))
 		goto error;
 
-	if (ph->needs_swap)
-		nre = bswap_32(nre);
-
-	ret = readn(fd, &sz, sizeof(sz));
-	if (ret != (ssize_t)sizeof(sz))
+	if (do_read_u32(ff, &sz))
 		goto error;
 
-	if (ph->needs_swap)
-		sz = bswap_32(sz);
-
 	/* buffer to hold on file attr struct */
 	buf = malloc(sz);
 	if (!buf)
@@ -1227,25 +1307,23 @@ read_event_desc(struct perf_header *ph, int fd)
 		 * must read entire on-file attr struct to
 		 * sync up with layout.
 		 */
-		ret = readn(fd, buf, sz);
-		if (ret != (ssize_t)sz)
+		if (__do_read(ff, buf, sz))
 			goto error;
 
-		if (ph->needs_swap)
+		if (ff->ph->needs_swap)
 			perf_event__attr_swap(buf);
 
 		memcpy(&evsel->attr, buf, msz);
 
-		ret = readn(fd, &nr, sizeof(nr));
-		if (ret != (ssize_t)sizeof(nr))
+		if (do_read_u32(ff, &nr))
 			goto error;
 
-		if (ph->needs_swap) {
-			nr = bswap_32(nr);
+		if (ff->ph->needs_swap)
 			evsel->needs_swap = true;
-		}
 
-		evsel->name = do_read_string(fd, ph);
+		evsel->name = do_read_string(ff);
+		if (!evsel->name)
+			goto error;
 
 		if (!nr)
 			continue;
@@ -1257,11 +1335,8 @@ read_event_desc(struct perf_header *ph, int fd)
 		evsel->id = id;
 
 		for (j = 0 ; j < nr; j++) {
-			ret = readn(fd, id, sizeof(*id));
-			if (ret != (ssize_t)sizeof(*id))
+			if (do_read_u64(ff, id))
 				goto error;
-			if (ph->needs_swap)
-				*id = bswap_64(*id);
 			id++;
 		}
 	}
@@ -1280,12 +1355,17 @@ static int __desc_attr__fprintf(FILE *fp, const char *name, const char *val,
 	return fprintf(fp, ", %s = %s", name, val);
 }
 
-static void print_event_desc(struct perf_header *ph, int fd, FILE *fp)
+static void print_event_desc(struct feat_fd *ff, FILE *fp)
 {
-	struct perf_evsel *evsel, *events = read_event_desc(ph, fd);
+	struct perf_evsel *evsel, *events;
 	u32 j;
 	u64 *id;
 
+	if (ff->events)
+		events = ff->events;
+	else
+		events = read_event_desc(ff);
+
 	if (!events) {
 		fprintf(fp, "# event desc: not available or unable to read\n");
 		return;
@@ -1310,22 +1390,21 @@ static void print_event_desc(struct perf_header *ph, int fd, FILE *fp)
 	}
 
 	free_event_desc(events);
+	ff->events = NULL;
 }
 
-static void print_total_mem(struct perf_header *ph, int fd __maybe_unused,
-			    FILE *fp)
+static void print_total_mem(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# total memory : %Lu kB\n", ph->env.total_mem);
+	fprintf(fp, "# total memory : %llu kB\n", ff->ph->env.total_mem);
 }
 
-static void print_numa_topology(struct perf_header *ph, int fd __maybe_unused,
-				FILE *fp)
+static void print_numa_topology(struct feat_fd *ff, FILE *fp)
 {
 	int i;
 	struct numa_node *n;
 
-	for (i = 0; i < ph->env.nr_numa_nodes; i++) {
-		n = &ph->env.numa_nodes[i];
+	for (i = 0; i < ff->ph->env.nr_numa_nodes; i++) {
+		n = &ff->ph->env.numa_nodes[i];
 
 		fprintf(fp, "# node%u meminfo  : total = %"PRIu64" kB,"
 			    " free = %"PRIu64" kB\n",
@@ -1336,56 +1415,51 @@ static void print_numa_topology(struct perf_header *ph, int fd __maybe_unused,
 	}
 }
 
-static void print_cpuid(struct perf_header *ph, int fd __maybe_unused, FILE *fp)
+static void print_cpuid(struct feat_fd *ff, FILE *fp)
 {
-	fprintf(fp, "# cpuid : %s\n", ph->env.cpuid);
+	fprintf(fp, "# cpuid : %s\n", ff->ph->env.cpuid);
 }
 
-static void print_branch_stack(struct perf_header *ph __maybe_unused,
-			       int fd __maybe_unused, FILE *fp)
+static void print_branch_stack(struct feat_fd *ff __maybe_unused, FILE *fp)
 {
 	fprintf(fp, "# contains samples with branch stack\n");
 }
 
-static void print_auxtrace(struct perf_header *ph __maybe_unused,
-			   int fd __maybe_unused, FILE *fp)
+static void print_auxtrace(struct feat_fd *ff __maybe_unused, FILE *fp)
 {
 	fprintf(fp, "# contains AUX area data (e.g. instruction trace)\n");
 }
 
-static void print_stat(struct perf_header *ph __maybe_unused,
-		       int fd __maybe_unused, FILE *fp)
+static void print_stat(struct feat_fd *ff __maybe_unused, FILE *fp)
 {
 	fprintf(fp, "# contains stat data\n");
 }
 
-static void print_cache(struct perf_header *ph __maybe_unused,
-			int fd __maybe_unused, FILE *fp __maybe_unused)
+static void print_cache(struct feat_fd *ff, FILE *fp __maybe_unused)
 {
 	int i;
 
 	fprintf(fp, "# CPU cache info:\n");
-	for (i = 0; i < ph->env.caches_cnt; i++) {
+	for (i = 0; i < ff->ph->env.caches_cnt; i++) {
 		fprintf(fp, "#  ");
-		cpu_cache_level__fprintf(fp, &ph->env.caches[i]);
+		cpu_cache_level__fprintf(fp, &ff->ph->env.caches[i]);
 	}
 }
 
-static void print_pmu_mappings(struct perf_header *ph, int fd __maybe_unused,
-			       FILE *fp)
+static void print_pmu_mappings(struct feat_fd *ff, FILE *fp)
 {
 	const char *delimiter = "# pmu mappings: ";
 	char *str, *tmp;
 	u32 pmu_num;
 	u32 type;
 
-	pmu_num = ph->env.nr_pmu_mappings;
+	pmu_num = ff->ph->env.nr_pmu_mappings;
 	if (!pmu_num) {
 		fprintf(fp, "# pmu mappings: not available\n");
 		return;
 	}
 
-	str = ph->env.pmu_mappings;
+	str = ff->ph->env.pmu_mappings;
 
 	while (pmu_num) {
 		type = strtoul(str, &tmp, 0);
@@ -1408,14 +1482,13 @@ error:
 	fprintf(fp, "# pmu mappings: unable to read\n");
 }
 
-static void print_group_desc(struct perf_header *ph, int fd __maybe_unused,
-			     FILE *fp)
+static void print_group_desc(struct feat_fd *ff, FILE *fp)
 {
 	struct perf_session *session;
 	struct perf_evsel *evsel;
 	u32 nr = 0;
 
-	session = container_of(ph, struct perf_session, header);
+	session = container_of(ff->ph, struct perf_session, header);
 
 	evlist__for_each_entry(session->evlist, evsel) {
 		if (perf_evsel__is_group_leader(evsel) &&
@@ -1588,113 +1661,61 @@ out:
 	return err;
 }
 
-static int process_tracing_data(struct perf_file_section *section __maybe_unused,
-				struct perf_header *ph __maybe_unused,
-				int fd, void *data)
-{
-	ssize_t ret = trace_report(fd, data, false);
-	return ret < 0 ? -1 : 0;
-}
-
-static int process_build_id(struct perf_file_section *section,
-			    struct perf_header *ph, int fd,
-			    void *data __maybe_unused)
-{
-	if (perf_header__read_build_ids(ph, fd, section->offset, section->size))
-		pr_debug("Failed to read buildids, continuing...\n");
-	return 0;
+/* Macro for features that simply need to read and store a string. */
+#define FEAT_PROCESS_STR_FUN(__feat, __feat_env) \
+static int process_##__feat(struct feat_fd *ff, void *data __maybe_unused) \
+{\
+	ff->ph->env.__feat_env = do_read_string(ff); \
+	return ff->ph->env.__feat_env ? 0 : -ENOMEM; \
 }
 
-static int process_hostname(struct perf_file_section *section __maybe_unused,
-			    struct perf_header *ph, int fd,
-			    void *data __maybe_unused)
-{
-	ph->env.hostname = do_read_string(fd, ph);
-	return ph->env.hostname ? 0 : -ENOMEM;
-}
+FEAT_PROCESS_STR_FUN(hostname, hostname);
+FEAT_PROCESS_STR_FUN(osrelease, os_release);
+FEAT_PROCESS_STR_FUN(version, version);
+FEAT_PROCESS_STR_FUN(arch, arch);
+FEAT_PROCESS_STR_FUN(cpudesc, cpu_desc);
+FEAT_PROCESS_STR_FUN(cpuid, cpuid);
 
-static int process_osrelease(struct perf_file_section *section __maybe_unused,
-			     struct perf_header *ph, int fd,
-			     void *data __maybe_unused)
+static int process_tracing_data(struct feat_fd *ff, void *data)
 {
-	ph->env.os_release = do_read_string(fd, ph);
-	return ph->env.os_release ? 0 : -ENOMEM;
-}
+	ssize_t ret = trace_report(ff->fd, data, false);
 
-static int process_version(struct perf_file_section *section __maybe_unused,
-			   struct perf_header *ph, int fd,
-			   void *data __maybe_unused)
-{
-	ph->env.version = do_read_string(fd, ph);
-	return ph->env.version ? 0 : -ENOMEM;
+	return ret < 0 ? -1 : 0;
 }
 
-static int process_arch(struct perf_file_section *section __maybe_unused,
-			struct perf_header *ph,	int fd,
-			void *data __maybe_unused)
+static int process_build_id(struct feat_fd *ff, void *data __maybe_unused)
 {
-	ph->env.arch = do_read_string(fd, ph);
-	return ph->env.arch ? 0 : -ENOMEM;
+	if (perf_header__read_build_ids(ff->ph, ff->fd, ff->offset, ff->size))
+		pr_debug("Failed to read buildids, continuing...\n");
+	return 0;
 }
 
-static int process_nrcpus(struct perf_file_section *section __maybe_unused,
-			  struct perf_header *ph, int fd,
-			  void *data __maybe_unused)
+static int process_nrcpus(struct feat_fd *ff, void *data __maybe_unused)
 {
-	ssize_t ret;
-	u32 nr;
-
-	ret = readn(fd, &nr, sizeof(nr));
-	if (ret != sizeof(nr))
-		return -1;
-
-	if (ph->needs_swap)
-		nr = bswap_32(nr);
-
-	ph->env.nr_cpus_avail = nr;
-
-	ret = readn(fd, &nr, sizeof(nr));
-	if (ret != sizeof(nr))
-		return -1;
+	int ret;
+	u32 nr_cpus_avail, nr_cpus_online;
 
-	if (ph->needs_swap)
-		nr = bswap_32(nr);
+	ret = do_read_u32(ff, &nr_cpus_avail);
+	if (ret)
+		return ret;
 
-	ph->env.nr_cpus_online = nr;
+	ret = do_read_u32(ff, &nr_cpus_online);
+	if (ret)
+		return ret;
+	ff->ph->env.nr_cpus_avail = (int)nr_cpus_avail;
+	ff->ph->env.nr_cpus_online = (int)nr_cpus_online;
 	return 0;
 }
 
-static int process_cpudesc(struct perf_file_section *section __maybe_unused,
-			   struct perf_header *ph, int fd,
-			   void *data __maybe_unused)
-{
-	ph->env.cpu_desc = do_read_string(fd, ph);
-	return ph->env.cpu_desc ? 0 : -ENOMEM;
-}
-
-static int process_cpuid(struct perf_file_section *section __maybe_unused,
-			 struct perf_header *ph,  int fd,
-			 void *data __maybe_unused)
-{
-	ph->env.cpuid = do_read_string(fd, ph);
-	return ph->env.cpuid ? 0 : -ENOMEM;
-}
-
-static int process_total_mem(struct perf_file_section *section __maybe_unused,
-			     struct perf_header *ph, int fd,
-			     void *data __maybe_unused)
+static int process_total_mem(struct feat_fd *ff, void *data __maybe_unused)
 {
-	uint64_t mem;
-	ssize_t ret;
+	u64 total_mem;
+	int ret;
 
-	ret = readn(fd, &mem, sizeof(mem));
-	if (ret != sizeof(mem))
+	ret = do_read_u64(ff, &total_mem);
+	if (ret)
 		return -1;
-
-	if (ph->needs_swap)
-		mem = bswap_64(mem);
-
-	ph->env.total_mem = mem;
+	ff->ph->env.total_mem = (unsigned long long)total_mem;
 	return 0;
 }
 
@@ -1731,43 +1752,42 @@ perf_evlist__set_event_name(struct perf_evlist *evlist,
 }
 
 static int
-process_event_desc(struct perf_file_section *section __maybe_unused,
-		   struct perf_header *header, int fd,
-		   void *data __maybe_unused)
+process_event_desc(struct feat_fd *ff, void *data __maybe_unused)
 {
 	struct perf_session *session;
-	struct perf_evsel *evsel, *events = read_event_desc(header, fd);
+	struct perf_evsel *evsel, *events = read_event_desc(ff);
 
 	if (!events)
 		return 0;
 
-	session = container_of(header, struct perf_session, header);
+	session = container_of(ff->ph, struct perf_session, header);
+
+	if (session->file->is_pipe) {
+		/* Save events for reading later by print_event_desc,
+		 * since they can't be read again in pipe mode. */
+		ff->events = events;
+	}
+
 	for (evsel = events; evsel->attr.size; evsel++)
 		perf_evlist__set_event_name(session->evlist, evsel);
 
-	free_event_desc(events);
+	if (!session->file->is_pipe)
+		free_event_desc(events);
 
 	return 0;
 }
 
-static int process_cmdline(struct perf_file_section *section,
-			   struct perf_header *ph, int fd,
-			   void *data __maybe_unused)
+static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused)
 {
-	ssize_t ret;
 	char *str, *cmdline = NULL, **argv = NULL;
 	u32 nr, i, len = 0;
 
-	ret = readn(fd, &nr, sizeof(nr));
-	if (ret != sizeof(nr))
+	if (do_read_u32(ff, &nr))
 		return -1;
 
-	if (ph->needs_swap)
-		nr = bswap_32(nr);
-
-	ph->env.nr_cmdline = nr;
+	ff->ph->env.nr_cmdline = nr;
 
-	cmdline = zalloc(section->size + nr + 1);
+	cmdline = zalloc(ff->size + nr + 1);
 	if (!cmdline)
 		return -1;
 
@@ -1776,7 +1796,7 @@ static int process_cmdline(struct perf_file_section *section,
 		goto error;
 
 	for (i = 0; i < nr; i++) {
-		str = do_read_string(fd, ph);
+		str = do_read_string(ff);
 		if (!str)
 			goto error;
 
@@ -1785,8 +1805,8 @@ static int process_cmdline(struct perf_file_section *section,
 		len += strlen(str) + 1;
 		free(str);
 	}
-	ph->env.cmdline = cmdline;
-	ph->env.cmdline_argv = (const char **) argv;
+	ff->ph->env.cmdline = cmdline;
+	ff->ph->env.cmdline_argv = (const char **) argv;
 	return 0;
 
 error:
@@ -1795,35 +1815,29 @@ error:
 	return -1;
 }
 
-static int process_cpu_topology(struct perf_file_section *section,
-				struct perf_header *ph, int fd,
-				void *data __maybe_unused)
+static int process_cpu_topology(struct feat_fd *ff, void *data __maybe_unused)
 {
-	ssize_t ret;
 	u32 nr, i;
 	char *str;
 	struct strbuf sb;
-	int cpu_nr = ph->env.nr_cpus_avail;
+	int cpu_nr = ff->ph->env.nr_cpus_avail;
 	u64 size = 0;
+	struct perf_header *ph = ff->ph;
 
 	ph->env.cpu = calloc(cpu_nr, sizeof(*ph->env.cpu));
 	if (!ph->env.cpu)
 		return -1;
 
-	ret = readn(fd, &nr, sizeof(nr));
-	if (ret != sizeof(nr))
+	if (do_read_u32(ff, &nr))
 		goto free_cpu;
 
-	if (ph->needs_swap)
-		nr = bswap_32(nr);
-
 	ph->env.nr_sibling_cores = nr;
 	size += sizeof(u32);
 	if (strbuf_init(&sb, 128) < 0)
 		goto free_cpu;
 
 	for (i = 0; i < nr; i++) {
-		str = do_read_string(fd, ph);
+		str = do_read_string(ff);
 		if (!str)
 			goto error;
 
@@ -1835,18 +1849,14 @@ static int process_cpu_topology(struct perf_file_section *section,
 	}
 	ph->env.sibling_cores = strbuf_detach(&sb, NULL);
 
-	ret = readn(fd, &nr, sizeof(nr));
-	if (ret != sizeof(nr))
+	if (do_read_u32(ff, &nr))
 		return -1;
 
-	if (ph->needs_swap)
-		nr = bswap_32(nr);
-
 	ph->env.nr_sibling_threads = nr;
 	size += sizeof(u32);
 
 	for (i = 0; i < nr; i++) {
-		str = do_read_string(fd, ph);
+		str = do_read_string(ff);
 		if (!str)
 			goto error;
 
@@ -1862,28 +1872,20 @@ static int process_cpu_topology(struct perf_file_section *section,
 	 * The header may be from old perf,
 	 * which doesn't include core id and socket id information.
 	 */
-	if (section->size <= size) {
+	if (ff->size <= size) {
 		zfree(&ph->env.cpu);
 		return 0;
 	}
 
 	for (i = 0; i < (u32)cpu_nr; i++) {
-		ret = readn(fd, &nr, sizeof(nr));
-		if (ret != sizeof(nr))
+		if (do_read_u32(ff, &nr))
 			goto free_cpu;
 
-		if (ph->needs_swap)
-			nr = bswap_32(nr);
-
 		ph->env.cpu[i].core_id = nr;
 
-		ret = readn(fd, &nr, sizeof(nr));
-		if (ret != sizeof(nr))
+		if (do_read_u32(ff, &nr))
 			goto free_cpu;
 
-		if (ph->needs_swap)
-			nr = bswap_32(nr);
-
 		if (nr != (u32)-1 && nr > (u32)cpu_nr) {
 			pr_debug("socket_id number is too big."
 				 "You may need to upgrade the perf tool.\n");
@@ -1902,23 +1904,16 @@ free_cpu:
 	return -1;
 }
 
-static int process_numa_topology(struct perf_file_section *section __maybe_unused,
-				 struct perf_header *ph, int fd,
-				 void *data __maybe_unused)
+static int process_numa_topology(struct feat_fd *ff, void *data __maybe_unused)
 {
 	struct numa_node *nodes, *n;
-	ssize_t ret;
 	u32 nr, i;
 	char *str;
 
 	/* nr nodes */
-	ret = readn(fd, &nr, sizeof(nr));
-	if (ret != sizeof(nr))
+	if (do_read_u32(ff, &nr))
 		return -1;
 
-	if (ph->needs_swap)
-		nr = bswap_32(nr);
-
 	nodes = zalloc(sizeof(*nodes) * nr);
 	if (!nodes)
 		return -ENOMEM;
@@ -1927,25 +1922,16 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
 		n = &nodes[i];
 
 		/* node number */
-		ret = readn(fd, &n->node, sizeof(u32));
-		if (ret != sizeof(n->node))
+		if (do_read_u32(ff, &n->node))
 			goto error;
 
-		ret = readn(fd, &n->mem_total, sizeof(u64));
-		if (ret != sizeof(u64))
+		if (do_read_u64(ff, &n->mem_total))
 			goto error;
 
-		ret = readn(fd, &n->mem_free, sizeof(u64));
-		if (ret != sizeof(u64))
+		if (do_read_u64(ff, &n->mem_free))
 			goto error;
 
-		if (ph->needs_swap) {
-			n->node      = bswap_32(n->node);
-			n->mem_total = bswap_64(n->mem_total);
-			n->mem_free  = bswap_64(n->mem_free);
-		}
-
-		str = do_read_string(fd, ph);
+		str = do_read_string(ff);
 		if (!str)
 			goto error;
 
@@ -1955,8 +1941,8 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
 
 		free(str);
 	}
-	ph->env.nr_numa_nodes = nr;
-	ph->env.numa_nodes = nodes;
+	ff->ph->env.nr_numa_nodes = nr;
+	ff->ph->env.numa_nodes = nodes;
 	return 0;
 
 error:
@@ -1964,39 +1950,30 @@ error:
 	return -1;
 }
 
-static int process_pmu_mappings(struct perf_file_section *section __maybe_unused,
-				struct perf_header *ph, int fd,
-				void *data __maybe_unused)
+static int process_pmu_mappings(struct feat_fd *ff, void *data __maybe_unused)
 {
-	ssize_t ret;
 	char *name;
 	u32 pmu_num;
 	u32 type;
 	struct strbuf sb;
 
-	ret = readn(fd, &pmu_num, sizeof(pmu_num));
-	if (ret != sizeof(pmu_num))
+	if (do_read_u32(ff, &pmu_num))
 		return -1;
 
-	if (ph->needs_swap)
-		pmu_num = bswap_32(pmu_num);
-
 	if (!pmu_num) {
 		pr_debug("pmu mappings not available\n");
 		return 0;
 	}
 
-	ph->env.nr_pmu_mappings = pmu_num;
+	ff->ph->env.nr_pmu_mappings = pmu_num;
 	if (strbuf_init(&sb, 128) < 0)
 		return -1;
 
 	while (pmu_num) {
-		if (readn(fd, &type, sizeof(type)) != sizeof(type))
+		if (do_read_u32(ff, &type))
 			goto error;
-		if (ph->needs_swap)
-			type = bswap_32(type);
 
-		name = do_read_string(fd, ph);
+		name = do_read_string(ff);
 		if (!name)
 			goto error;
 
@@ -2007,12 +1984,12 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
 			goto error;
 
 		if (!strcmp(name, "msr"))
-			ph->env.msr_pmu_type = type;
+			ff->ph->env.msr_pmu_type = type;
 
 		free(name);
 		pmu_num--;
 	}
-	ph->env.pmu_mappings = strbuf_detach(&sb, NULL);
+	ff->ph->env.pmu_mappings = strbuf_detach(&sb, NULL);
 	return 0;
 
 error:
@@ -2020,9 +1997,7 @@ error:
 	return -1;
 }
 
-static int process_group_desc(struct perf_file_section *section __maybe_unused,
-			      struct perf_header *ph, int fd,
-			      void *data __maybe_unused)
+static int process_group_desc(struct feat_fd *ff, void *data __maybe_unused)
 {
 	size_t ret = -1;
 	u32 i, nr, nr_groups;
@@ -2034,13 +2009,10 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
 		u32 nr_members;
 	} *desc;
 
-	if (readn(fd, &nr_groups, sizeof(nr_groups)) != sizeof(nr_groups))
+	if (do_read_u32(ff, &nr_groups))
 		return -1;
 
-	if (ph->needs_swap)
-		nr_groups = bswap_32(nr_groups);
-
-	ph->env.nr_groups = nr_groups;
+	ff->ph->env.nr_groups = nr_groups;
 	if (!nr_groups) {
 		pr_debug("group desc not available\n");
 		return 0;
@@ -2051,26 +2023,21 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
 		return -1;
 
 	for (i = 0; i < nr_groups; i++) {
-		desc[i].name = do_read_string(fd, ph);
+		desc[i].name = do_read_string(ff);
 		if (!desc[i].name)
 			goto out_free;
 
-		if (readn(fd, &desc[i].leader_idx, sizeof(u32)) != sizeof(u32))
+		if (do_read_u32(ff, &desc[i].leader_idx))
 			goto out_free;
 
-		if (readn(fd, &desc[i].nr_members, sizeof(u32)) != sizeof(u32))
+		if (do_read_u32(ff, &desc[i].nr_members))
 			goto out_free;
-
-		if (ph->needs_swap) {
-			desc[i].leader_idx = bswap_32(desc[i].leader_idx);
-			desc[i].nr_members = bswap_32(desc[i].nr_members);
-		}
 	}
 
 	/*
 	 * Rebuild group relationship based on the group_desc
 	 */
-	session = container_of(ph, struct perf_session, header);
+	session = container_of(ff->ph, struct perf_session, header);
 	session->evlist->nr_groups = nr_groups;
 
 	i = nr = 0;
@@ -2114,44 +2081,34 @@ out_free:
 	return ret;
 }
 
-static int process_auxtrace(struct perf_file_section *section,
-			    struct perf_header *ph, int fd,
-			    void *data __maybe_unused)
+static int process_auxtrace(struct feat_fd *ff, void *data __maybe_unused)
 {
 	struct perf_session *session;
 	int err;
 
-	session = container_of(ph, struct perf_session, header);
+	session = container_of(ff->ph, struct perf_session, header);
 
-	err = auxtrace_index__process(fd, section->size, session,
-				      ph->needs_swap);
+	err = auxtrace_index__process(ff->fd, ff->size, session,
+				      ff->ph->needs_swap);
 	if (err < 0)
 		pr_err("Failed to process auxtrace index\n");
 	return err;
 }
 
-static int process_cache(struct perf_file_section *section __maybe_unused,
-			 struct perf_header *ph __maybe_unused, int fd __maybe_unused,
-			 void *data __maybe_unused)
+static int process_cache(struct feat_fd *ff, void *data __maybe_unused)
 {
 	struct cpu_cache_level *caches;
 	u32 cnt, i, version;
 
-	if (readn(fd, &version, sizeof(version)) != sizeof(version))
+	if (do_read_u32(ff, &version))
 		return -1;
 
-	if (ph->needs_swap)
-		version = bswap_32(version);
-
 	if (version != 1)
 		return -1;
 
-	if (readn(fd, &cnt, sizeof(cnt)) != sizeof(cnt))
+	if (do_read_u32(ff, &cnt))
 		return -1;
 
-	if (ph->needs_swap)
-		cnt = bswap_32(cnt);
-
 	caches = zalloc(sizeof(*caches) * cnt);
 	if (!caches)
 		return -1;
@@ -2160,10 +2117,8 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
 		struct cpu_cache_level c;
 
 		#define _R(v)						\
-			if (readn(fd, &c.v, sizeof(u32)) != sizeof(u32))\
+			if (do_read_u32(ff, &c.v))\
 				goto out_free_caches;			\
-			if (ph->needs_swap)				\
-				c.v = bswap_32(c.v);			\
 
 		_R(level)
 		_R(line_size)
@@ -2171,9 +2126,9 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
 		_R(ways)
 		#undef _R
 
-		#define _R(v)				\
-			c.v = do_read_string(fd, ph);	\
-			if (!c.v)			\
+		#define _R(v)					\
+			c.v = do_read_string(ff);		\
+			if (!c.v)				\
 				goto out_free_caches;
 
 		_R(type)
@@ -2184,8 +2139,8 @@ static int process_cache(struct perf_file_section *section __maybe_unused,
 		caches[i] = c;
 	}
 
-	ph->env.caches = caches;
-	ph->env.caches_cnt = cnt;
+	ff->ph->env.caches = caches;
+	ff->ph->env.caches_cnt = cnt;
 	return 0;
 out_free_caches:
 	free(caches);
@@ -2193,48 +2148,62 @@ out_free_caches:
 }
 
 struct feature_ops {
-	int (*write)(int fd, struct perf_header *h, struct perf_evlist *evlist);
-	void (*print)(struct perf_header *h, int fd, FILE *fp);
-	int (*process)(struct perf_file_section *section,
-		       struct perf_header *h, int fd, void *data);
+	int (*write)(struct feat_fd *ff, struct perf_evlist *evlist);
+	void (*print)(struct feat_fd *ff, FILE *fp);
+	int (*process)(struct feat_fd *ff, void *data);
 	const char *name;
 	bool full_only;
+	bool synthesize;
 };
 
-#define FEAT_OPA(n, func) \
-	[n] = { .name = #n, .write = write_##func, .print = print_##func }
-#define FEAT_OPP(n, func) \
-	[n] = { .name = #n, .write = write_##func, .print = print_##func, \
-		.process = process_##func }
-#define FEAT_OPF(n, func) \
-	[n] = { .name = #n, .write = write_##func, .print = print_##func, \
-		.process = process_##func, .full_only = true }
+#define FEAT_OPR(n, func, __full_only) \
+	[HEADER_##n] = {					\
+		.name	    = __stringify(n),			\
+		.write	    = write_##func,			\
+		.print	    = print_##func,			\
+		.full_only  = __full_only,			\
+		.process    = process_##func,			\
+		.synthesize = true				\
+	}
+
+#define FEAT_OPN(n, func, __full_only) \
+	[HEADER_##n] = {					\
+		.name	    = __stringify(n),			\
+		.write	    = write_##func,			\
+		.print	    = print_##func,			\
+		.full_only  = __full_only,			\
+		.process    = process_##func			\
+	}
 
 /* feature_ops not implemented: */
 #define print_tracing_data	NULL
 #define print_build_id		NULL
 
+#define process_branch_stack	NULL
+#define process_stat		NULL
+
+
 static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = {
-	FEAT_OPP(HEADER_TRACING_DATA,	tracing_data),
-	FEAT_OPP(HEADER_BUILD_ID,	build_id),
-	FEAT_OPP(HEADER_HOSTNAME,	hostname),
-	FEAT_OPP(HEADER_OSRELEASE,	osrelease),
-	FEAT_OPP(HEADER_VERSION,	version),
-	FEAT_OPP(HEADER_ARCH,		arch),
-	FEAT_OPP(HEADER_NRCPUS,		nrcpus),
-	FEAT_OPP(HEADER_CPUDESC,	cpudesc),
-	FEAT_OPP(HEADER_CPUID,		cpuid),
-	FEAT_OPP(HEADER_TOTAL_MEM,	total_mem),
-	FEAT_OPP(HEADER_EVENT_DESC,	event_desc),
-	FEAT_OPP(HEADER_CMDLINE,	cmdline),
-	FEAT_OPF(HEADER_CPU_TOPOLOGY,	cpu_topology),
-	FEAT_OPF(HEADER_NUMA_TOPOLOGY,	numa_topology),
-	FEAT_OPA(HEADER_BRANCH_STACK,	branch_stack),
-	FEAT_OPP(HEADER_PMU_MAPPINGS,	pmu_mappings),
-	FEAT_OPP(HEADER_GROUP_DESC,	group_desc),
-	FEAT_OPP(HEADER_AUXTRACE,	auxtrace),
-	FEAT_OPA(HEADER_STAT,		stat),
-	FEAT_OPF(HEADER_CACHE,		cache),
+	FEAT_OPN(TRACING_DATA,	tracing_data,	false),
+	FEAT_OPN(BUILD_ID,	build_id,	false),
+	FEAT_OPR(HOSTNAME,	hostname,	false),
+	FEAT_OPR(OSRELEASE,	osrelease,	false),
+	FEAT_OPR(VERSION,	version,	false),
+	FEAT_OPR(ARCH,		arch,		false),
+	FEAT_OPR(NRCPUS,	nrcpus,		false),
+	FEAT_OPR(CPUDESC,	cpudesc,	false),
+	FEAT_OPR(CPUID,		cpuid,		false),
+	FEAT_OPR(TOTAL_MEM,	total_mem,	false),
+	FEAT_OPR(EVENT_DESC,	event_desc,	false),
+	FEAT_OPR(CMDLINE,	cmdline,	false),
+	FEAT_OPR(CPU_TOPOLOGY,	cpu_topology,	true),
+	FEAT_OPR(NUMA_TOPOLOGY,	numa_topology,	true),
+	FEAT_OPN(BRANCH_STACK,	branch_stack,	false),
+	FEAT_OPR(PMU_MAPPINGS,	pmu_mappings,	false),
+	FEAT_OPN(GROUP_DESC,	group_desc,	false),
+	FEAT_OPN(AUXTRACE,	auxtrace,	false),
+	FEAT_OPN(STAT,		stat,		false),
+	FEAT_OPN(CACHE,		cache,		true),
 };
 
 struct header_print_data {
@@ -2247,6 +2216,7 @@ static int perf_file_section__fprintf_info(struct perf_file_section *section,
 					   int feat, int fd, void *data)
 {
 	struct header_print_data *hd = data;
+	struct feat_fd ff;
 
 	if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
 		pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
@@ -2260,8 +2230,13 @@ static int perf_file_section__fprintf_info(struct perf_file_section *section,
 	if (!feat_ops[feat].print)
 		return 0;
 
+	ff = (struct  feat_fd) {
+		.fd = fd,
+		.ph = ph,
+	};
+
 	if (!feat_ops[feat].full_only || hd->full)
-		feat_ops[feat].print(ph, fd, hd->fp);
+		feat_ops[feat].print(&ff, hd->fp);
 	else
 		fprintf(hd->fp, "# %s info available, use -I to display\n",
 			feat_ops[feat].name);
@@ -2302,29 +2277,32 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
 	return 0;
 }
 
-static int do_write_feat(int fd, struct perf_header *h, int type,
+static int do_write_feat(struct feat_fd *ff, int type,
 			 struct perf_file_section **p,
 			 struct perf_evlist *evlist)
 {
 	int err;
 	int ret = 0;
 
-	if (perf_header__has_feat(h, type)) {
+	if (perf_header__has_feat(ff->ph, type)) {
 		if (!feat_ops[type].write)
 			return -1;
 
-		(*p)->offset = lseek(fd, 0, SEEK_CUR);
+		if (WARN(ff->buf, "Error: calling %s in pipe-mode.\n", __func__))
+			return -1;
 
-		err = feat_ops[type].write(fd, h, evlist);
+		(*p)->offset = lseek(ff->fd, 0, SEEK_CUR);
+
+		err = feat_ops[type].write(ff, evlist);
 		if (err < 0) {
 			pr_debug("failed to write feature %s\n", feat_ops[type].name);
 
 			/* undo anything written */
-			lseek(fd, (*p)->offset, SEEK_SET);
+			lseek(ff->fd, (*p)->offset, SEEK_SET);
 
 			return -1;
 		}
-		(*p)->size = lseek(fd, 0, SEEK_CUR) - (*p)->offset;
+		(*p)->size = lseek(ff->fd, 0, SEEK_CUR) - (*p)->offset;
 		(*p)++;
 	}
 	return ret;
@@ -2334,12 +2312,18 @@ static int perf_header__adds_write(struct perf_header *header,
 				   struct perf_evlist *evlist, int fd)
 {
 	int nr_sections;
+	struct feat_fd ff;
 	struct perf_file_section *feat_sec, *p;
 	int sec_size;
 	u64 sec_start;
 	int feat;
 	int err;
 
+	ff = (struct feat_fd){
+		.fd  = fd,
+		.ph = header,
+	};
+
 	nr_sections = bitmap_weight(header->adds_features, HEADER_FEAT_BITS);
 	if (!nr_sections)
 		return 0;
@@ -2354,7 +2338,7 @@ static int perf_header__adds_write(struct perf_header *header,
 	lseek(fd, sec_start + sec_size, SEEK_SET);
 
 	for_each_set_bit(feat, header->adds_features, HEADER_FEAT_BITS) {
-		if (do_write_feat(fd, header, feat, &p, evlist))
+		if (do_write_feat(&ff, feat, &p, evlist))
 			perf_header__clear_feat(header, feat);
 	}
 
@@ -2363,7 +2347,7 @@ static int perf_header__adds_write(struct perf_header *header,
 	 * may write more than needed due to dropped feature, but
 	 * this is okay, reader will skip the mising entries
 	 */
-	err = do_write(fd, feat_sec, sec_size);
+	err = do_write(&ff, feat_sec, sec_size);
 	if (err < 0)
 		pr_debug("failed to write feature section\n");
 	free(feat_sec);
@@ -2373,14 +2357,17 @@ static int perf_header__adds_write(struct perf_header *header,
 int perf_header__write_pipe(int fd)
 {
 	struct perf_pipe_file_header f_header;
+	struct feat_fd ff;
 	int err;
 
+	ff = (struct feat_fd){ .fd = fd };
+
 	f_header = (struct perf_pipe_file_header){
 		.magic	   = PERF_MAGIC,
 		.size	   = sizeof(f_header),
 	};
 
-	err = do_write(fd, &f_header, sizeof(f_header));
+	err = do_write(&ff, &f_header, sizeof(f_header));
 	if (err < 0) {
 		pr_debug("failed to write perf pipe header\n");
 		return err;
@@ -2397,21 +2384,23 @@ int perf_session__write_header(struct perf_session *session,
 	struct perf_file_attr   f_attr;
 	struct perf_header *header = &session->header;
 	struct perf_evsel *evsel;
+	struct feat_fd ff;
 	u64 attr_offset;
 	int err;
 
+	ff = (struct feat_fd){ .fd = fd};
 	lseek(fd, sizeof(f_header), SEEK_SET);
 
 	evlist__for_each_entry(session->evlist, evsel) {
 		evsel->id_offset = lseek(fd, 0, SEEK_CUR);
-		err = do_write(fd, evsel->id, evsel->ids * sizeof(u64));
+		err = do_write(&ff, evsel->id, evsel->ids * sizeof(u64));
 		if (err < 0) {
 			pr_debug("failed to write perf header\n");
 			return err;
 		}
 	}
 
-	attr_offset = lseek(fd, 0, SEEK_CUR);
+	attr_offset = lseek(ff.fd, 0, SEEK_CUR);
 
 	evlist__for_each_entry(evlist, evsel) {
 		f_attr = (struct perf_file_attr){
@@ -2421,7 +2410,7 @@ int perf_session__write_header(struct perf_session *session,
 				.size   = evsel->ids * sizeof(u64),
 			}
 		};
-		err = do_write(fd, &f_attr, sizeof(f_attr));
+		err = do_write(&ff, &f_attr, sizeof(f_attr));
 		if (err < 0) {
 			pr_debug("failed to write perf header attribute\n");
 			return err;
@@ -2456,7 +2445,7 @@ int perf_session__write_header(struct perf_session *session,
 	memcpy(&f_header.adds_features, &header->adds_features, sizeof(header->adds_features));
 
 	lseek(fd, 0, SEEK_SET);
-	err = do_write(fd, &f_header, sizeof(f_header));
+	err = do_write(&ff, &f_header, sizeof(f_header));
 	if (err < 0) {
 		pr_debug("failed to write perf header\n");
 		return err;
@@ -2710,6 +2699,13 @@ static int perf_file_section__process(struct perf_file_section *section,
 				      struct perf_header *ph,
 				      int feat, int fd, void *data)
 {
+	struct feat_fd fdd = {
+		.fd	= fd,
+		.ph	= ph,
+		.size	= section->size,
+		.offset	= section->offset,
+	};
+
 	if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
 		pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
 			  "%d, continuing...\n", section->offset, feat);
@@ -2724,13 +2720,17 @@ static int perf_file_section__process(struct perf_file_section *section,
 	if (!feat_ops[feat].process)
 		return 0;
 
-	return feat_ops[feat].process(section, ph, fd, data);
+	return feat_ops[feat].process(&fdd, data);
 }
 
 static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,
 				       struct perf_header *ph, int fd,
 				       bool repipe)
 {
+	struct feat_fd ff = {
+		.fd = STDOUT_FILENO,
+		.ph = ph,
+	};
 	ssize_t ret;
 
 	ret = readn(fd, header, sizeof(*header));
@@ -2745,7 +2745,7 @@ static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,
 	if (ph->needs_swap)
 		header->size = bswap_64(header->size);
 
-	if (repipe && do_write(STDOUT_FILENO, header, sizeof(*header)) < 0)
+	if (repipe && do_write(&ff, header, sizeof(*header)) < 0)
 		return -1;
 
 	return 0;
@@ -2995,6 +2995,103 @@ int perf_event__synthesize_attr(struct perf_tool *tool,
 	return err;
 }
 
+int perf_event__synthesize_features(struct perf_tool *tool,
+				    struct perf_session *session,
+				    struct perf_evlist *evlist,
+				    perf_event__handler_t process)
+{
+	struct perf_header *header = &session->header;
+	struct feat_fd ff;
+	struct feature_event *fe;
+	size_t sz, sz_hdr;
+	int feat, ret;
+
+	sz_hdr = sizeof(fe->header);
+	sz = sizeof(union perf_event);
+	/* get a nice alignment */
+	sz = PERF_ALIGN(sz, page_size);
+
+	memset(&ff, 0, sizeof(ff));
+
+	ff.buf = malloc(sz);
+	if (!ff.buf)
+		return -ENOMEM;
+
+	ff.size = sz - sz_hdr;
+
+	for_each_set_bit(feat, header->adds_features, HEADER_FEAT_BITS) {
+		if (!feat_ops[feat].synthesize) {
+			pr_debug("No record header feature for header :%d\n", feat);
+			continue;
+		}
+
+		ff.offset = sizeof(*fe);
+
+		ret = feat_ops[feat].write(&ff, evlist);
+		if (ret || ff.offset <= (ssize_t)sizeof(*fe)) {
+			pr_debug("Error writing feature\n");
+			continue;
+		}
+		/* ff.buf may have changed due to realloc in do_write() */
+		fe = ff.buf;
+		memset(fe, 0, sizeof(*fe));
+
+		fe->feat_id = feat;
+		fe->header.type = PERF_RECORD_HEADER_FEATURE;
+		fe->header.size = ff.offset;
+
+		ret = process(tool, ff.buf, NULL, NULL);
+		if (ret) {
+			free(ff.buf);
+			return ret;
+		}
+	}
+	free(ff.buf);
+	return 0;
+}
+
+int perf_event__process_feature(struct perf_tool *tool,
+				union perf_event *event,
+				struct perf_session *session __maybe_unused)
+{
+	struct feat_fd ff = { .fd = 0 };
+	struct feature_event *fe = (struct feature_event *)event;
+	int type = fe->header.type;
+	u64 feat = fe->feat_id;
+
+	if (type < 0 || type >= PERF_RECORD_HEADER_MAX) {
+		pr_warning("invalid record type %d in pipe-mode\n", type);
+		return 0;
+	}
+	if (feat == HEADER_RESERVED || feat > HEADER_LAST_FEATURE) {
+		pr_warning("invalid record type %d in pipe-mode\n", type);
+		return -1;
+	}
+
+	if (!feat_ops[feat].process)
+		return 0;
+
+	ff.buf  = (void *)fe->data;
+	ff.size = event->header.size - sizeof(event->header);
+	ff.ph = &session->header;
+
+	if (feat_ops[feat].process(&ff, NULL))
+		return -1;
+
+	if (!feat_ops[feat].print || !tool->show_feat_hdr)
+		return 0;
+
+	if (!feat_ops[feat].full_only ||
+	    tool->show_feat_hdr >= SHOW_FEAT_HEADER_FULL_INFO) {
+		feat_ops[feat].print(&ff, stdout);
+	} else {
+		fprintf(stdout, "# %s info available, use -I to display\n",
+			feat_ops[feat].name);
+	}
+
+	return 0;
+}
+
 static struct event_update_event *
 event_update_event__new(size_t size, u64 type, u64 id)
 {
@@ -3253,6 +3350,7 @@ int perf_event__synthesize_tracing_data(struct perf_tool *tool, int fd,
 	union perf_event ev;
 	struct tracing_data *tdata;
 	ssize_t size = 0, aligned_size = 0, padding;
+	struct feat_fd ff;
 	int err __maybe_unused = 0;
 
 	/*
@@ -3287,7 +3385,9 @@ int perf_event__synthesize_tracing_data(struct perf_tool *tool, int fd,
 	 */
 	tracing_data_put(tdata);
 
-	write_padded(fd, NULL, 0, padding);
+	ff = (struct feat_fd){ .fd = fd };
+	if (write_padded(&ff, NULL, 0, padding))
+		return -1;
 
 	return aligned_size;
 }
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d30109b421ee..f7a16ee527b8 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -101,6 +101,15 @@ int perf_header__process_sections(struct perf_header *header, int fd,
 
 int perf_header__fprintf_info(struct perf_session *s, FILE *fp, bool full);
 
+int perf_event__synthesize_features(struct perf_tool *tool,
+				    struct perf_session *session,
+				    struct perf_evlist *evlist,
+				    perf_event__handler_t process);
+
+int perf_event__process_feature(struct perf_tool *tool,
+				union perf_event *event,
+				struct perf_session *session);
+
 int perf_event__synthesize_attr(struct perf_tool *tool,
 				struct perf_event_attr *attr, u32 ids, u64 *id,
 				perf_event__handler_t process);
@@ -144,7 +153,12 @@ bool is_perf_magic(u64 magic);
 
 #define NAME_ALIGN 64
 
-int write_padded(int fd, const void *bf, size_t count, size_t count_aligned);
+struct feat_fd;
+
+int do_write(struct feat_fd *fd, const void *buf, size_t size);
+
+int write_padded(struct feat_fd *fd, const void *bf,
+		 size_t count, size_t count_aligned);
 
 /*
  * arch specific callback
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cf0186a088c1..9453b2e27015 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -749,12 +749,9 @@ iter_prepare_branch_entry(struct hist_entry_iter *iter, struct addr_location *al
 }
 
 static int
-iter_add_single_branch_entry(struct hist_entry_iter *iter,
+iter_add_single_branch_entry(struct hist_entry_iter *iter __maybe_unused,
 			     struct addr_location *al __maybe_unused)
 {
-	/* to avoid calling callback function */
-	iter->he = NULL;
-
 	return 0;
 }
 
@@ -1762,6 +1759,8 @@ void perf_evsel__output_resort(struct perf_evsel *evsel, struct ui_progress *pro
 	else
 		use_callchain = symbol_conf.use_callchain;
 
+	use_callchain |= symbol_conf.show_branchflag_count;
+
 	output_resort(evsel__hists(evsel), prog, use_callchain, NULL);
 }
 
diff --git a/tools/perf/util/intel-pt-decoder/Build b/tools/perf/util/intel-pt-decoder/Build
index 7aca5d6d7e1f..10e0814bb8d2 100644
--- a/tools/perf/util/intel-pt-decoder/Build
+++ b/tools/perf/util/intel-pt-decoder/Build
@@ -25,6 +25,6 @@ $(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/in
 
 CFLAGS_intel-pt-insn-decoder.o += -I$(OUTPUT)util/intel-pt-decoder
 
-ifneq ($(CC), clang)
+ifeq ($(CC_NO_CLANG), 1)
   CFLAGS_intel-pt-insn-decoder.o += -Wno-override-init
 endif
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index c6a15f204c03..209b0c82eff4 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -33,7 +33,7 @@ struct llvm_param llvm_param = {
 
 int perf_llvm_config(const char *var, const char *value)
 {
-	if (prefixcmp(var, "llvm."))
+	if (!strstarts(var, "llvm."))
 		return 0;
 	var += sizeof("llvm.") - 1;
 
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 2e9eb6aa3ce2..5c8eacaca4f4 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -705,7 +705,8 @@ size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp)
 
 	if (kdso->has_build_id) {
 		char filename[PATH_MAX];
-		if (dso__build_id_filename(kdso, filename, sizeof(filename)))
+		if (dso__build_id_filename(kdso, filename, sizeof(filename),
+					   false))
 			printed += fprintf(fp, "[0] %s\n", filename);
 	}
 
@@ -1137,7 +1138,8 @@ int __weak arch__fix_module_text_start(u64 *start __maybe_unused,
 	return 0;
 }
 
-static int machine__create_module(void *arg, const char *name, u64 start)
+static int machine__create_module(void *arg, const char *name, u64 start,
+				  u64 size)
 {
 	struct machine *machine = arg;
 	struct map *map;
@@ -1148,6 +1150,7 @@ static int machine__create_module(void *arg, const char *name, u64 start)
 	map = machine__findnew_module_map(machine, start, name);
 	if (map == NULL)
 		return -1;
+	map->end = start + size;
 
 	dso__kernel_module_get_build_id(map->dso, machine->root_dir);
 
@@ -1392,7 +1395,7 @@ int machine__process_mmap2_event(struct machine *machine,
 
 	map = map__new(machine, event->mmap2.start,
 			event->mmap2.len, event->mmap2.pgoff,
-			event->mmap2.pid, event->mmap2.maj,
+			event->mmap2.maj,
 			event->mmap2.min, event->mmap2.ino,
 			event->mmap2.ino_generation,
 			event->mmap2.prot,
@@ -1450,7 +1453,7 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
 
 	map = map__new(machine, event->mmap.start,
 			event->mmap.len, event->mmap.pgoff,
-			event->mmap.pid, 0, 0, 0, 0, 0, 0,
+			0, 0, 0, 0, 0, 0,
 			event->mmap.filename,
 			type, thread);
 
@@ -1681,7 +1684,8 @@ static int add_callchain_ip(struct thread *thread,
 			    bool branch,
 			    struct branch_flags *flags,
 			    int nr_loop_iter,
-			    int samples)
+			    int samples,
+			    u64 branch_from)
 {
 	struct addr_location al;
 
@@ -1734,7 +1738,8 @@ static int add_callchain_ip(struct thread *thread,
 	if (symbol_conf.hide_unresolved && al.sym == NULL)
 		return 0;
 	return callchain_cursor_append(cursor, al.addr, al.map, al.sym,
-				       branch, flags, nr_loop_iter, samples);
+				       branch, flags, nr_loop_iter, samples,
+				       branch_from);
 }
 
 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
@@ -1813,7 +1818,7 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
 	struct ip_callchain *chain = sample->callchain;
 	int chain_nr = min(max_stack, (int)chain->nr), i;
 	u8 cpumode = PERF_RECORD_MISC_USER;
-	u64 ip;
+	u64 ip, branch_from = 0;
 
 	for (i = 0; i < chain_nr; i++) {
 		if (chain->ips[i] == PERF_CONTEXT_USER)
@@ -1855,6 +1860,8 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
 					ip = lbr_stack->entries[0].to;
 					branch = true;
 					flags = &lbr_stack->entries[0].flags;
+					branch_from =
+						lbr_stack->entries[0].from;
 				}
 			} else {
 				if (j < lbr_nr) {
@@ -1869,12 +1876,15 @@ static int resolve_lbr_callchain_sample(struct thread *thread,
 					ip = lbr_stack->entries[0].to;
 					branch = true;
 					flags = &lbr_stack->entries[0].flags;
+					branch_from =
+						lbr_stack->entries[0].from;
 				}
 			}
 
 			err = add_callchain_ip(thread, cursor, parent,
 					       root_al, &cpumode, ip,
-					       branch, flags, 0, 0);
+					       branch, flags, 0, 0,
+					       branch_from);
 			if (err)
 				return (err < 0) ? err : 0;
 		}
@@ -1894,13 +1904,16 @@ static int thread__resolve_callchain_sample(struct thread *thread,
 {
 	struct branch_stack *branch = sample->branch_stack;
 	struct ip_callchain *chain = sample->callchain;
-	int chain_nr = chain->nr;
+	int chain_nr = 0;
 	u8 cpumode = PERF_RECORD_MISC_USER;
 	int i, j, err, nr_entries;
 	int skip_idx = -1;
 	int first_call = 0;
 	int nr_loop_iter;
 
+	if (chain)
+		chain_nr = chain->nr;
+
 	if (perf_evsel__has_branch_callstack(evsel)) {
 		err = resolve_lbr_callchain_sample(thread, cursor, sample, parent,
 						   root_al, max_stack);
@@ -1938,6 +1951,10 @@ static int thread__resolve_callchain_sample(struct thread *thread,
 		for (i = 0; i < nr; i++) {
 			if (callchain_param.order == ORDER_CALLEE) {
 				be[i] = branch->entries[i];
+
+				if (chain == NULL)
+					continue;
+
 				/*
 				 * Check for overlap into the callchain.
 				 * The return address is one off compared to
@@ -1973,24 +1990,29 @@ static int thread__resolve_callchain_sample(struct thread *thread,
 						       root_al,
 						       NULL, be[i].to,
 						       true, &be[i].flags,
-						       nr_loop_iter, 1);
+						       nr_loop_iter, 1,
+						       be[i].from);
 			else
 				err = add_callchain_ip(thread, cursor, parent,
 						       root_al,
 						       NULL, be[i].to,
 						       true, &be[i].flags,
-						       0, 0);
+						       0, 0, be[i].from);
 
 			if (!err)
 				err = add_callchain_ip(thread, cursor, parent, root_al,
 						       NULL, be[i].from,
 						       true, &be[i].flags,
-						       0, 0);
+						       0, 0, 0);
 			if (err == -EINVAL)
 				break;
 			if (err)
 				return err;
 		}
+
+		if (chain_nr == 0)
+			return 0;
+
 		chain_nr -= nr;
 	}
 
@@ -2015,7 +2037,7 @@ check_calls:
 
 		err = add_callchain_ip(thread, cursor, parent,
 				       root_al, &cpumode, ip,
-				       false, NULL, 0, 0);
+				       false, NULL, 0, 0, 0);
 
 		if (err)
 			return (err < 0) ? err : 0;
@@ -2032,7 +2054,7 @@ static int unwind_entry(struct unwind_entry *entry, void *arg)
 		return 0;
 	return callchain_cursor_append(cursor, entry->ip,
 				       entry->map, entry->sym,
-				       false, NULL, 0, 0);
+				       false, NULL, 0, 0, 0);
 }
 
 static int thread__resolve_callchain_unwind(struct thread *thread,
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 2179b2deb730..bdaa0a4edc17 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -16,6 +16,7 @@
 #include "machine.h"
 #include <linux/string.h>
 #include "srcline.h"
+#include "namespaces.h"
 #include "unwind.h"
 
 static void __maps__insert(struct maps *maps, struct map *map);
@@ -145,11 +146,13 @@ void map__init(struct map *map, enum map_type type,
 }
 
 struct map *map__new(struct machine *machine, u64 start, u64 len,
-		     u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
+		     u64 pgoff, u32 d_maj, u32 d_min, u64 ino,
 		     u64 ino_gen, u32 prot, u32 flags, char *filename,
 		     enum map_type type, struct thread *thread)
 {
 	struct map *map = malloc(sizeof(*map));
+	struct nsinfo *nsi = NULL;
+	struct nsinfo *nnsi;
 
 	if (map != NULL) {
 		char newfilename[PATH_MAX];
@@ -167,9 +170,11 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
 		map->ino_generation = ino_gen;
 		map->prot = prot;
 		map->flags = flags;
+		nsi = nsinfo__get(thread->nsinfo);
 
-		if ((anon || no_dso) && type == MAP__FUNCTION) {
-			snprintf(newfilename, sizeof(newfilename), "/tmp/perf-%d.map", pid);
+		if ((anon || no_dso) && nsi && type == MAP__FUNCTION) {
+			snprintf(newfilename, sizeof(newfilename),
+				 "/tmp/perf-%d.map", nsi->pid);
 			filename = newfilename;
 		}
 
@@ -179,6 +184,16 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
 		}
 
 		if (vdso) {
+			/* The vdso maps are always on the host and not the
+			 * container.  Ensure that we don't use setns to look
+			 * them up.
+			 */
+			nnsi = nsinfo__copy(nsi);
+			if (nnsi) {
+				nsinfo__put(nsi);
+				nnsi->need_setns = false;
+				nsi = nnsi;
+			}
 			pgoff = 0;
 			dso = machine__findnew_vdso(machine, thread);
 		} else
@@ -200,10 +215,12 @@ struct map *map__new(struct machine *machine, u64 start, u64 len,
 			if (type != MAP__FUNCTION)
 				dso__set_loaded(dso, map->type);
 		}
+		dso->nsinfo = nsi;
 		dso__put(dso);
 	}
 	return map;
 out_delete:
+	nsinfo__put(nsi);
 	free(map);
 	return NULL;
 }
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index f9e8ac8a52cd..73aacf7a7dc4 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -141,7 +141,7 @@ struct thread;
 void map__init(struct map *map, enum map_type type,
 	       u64 start, u64 end, u64 pgoff, struct dso *dso);
 struct map *map__new(struct machine *machine, u64 start, u64 len,
-		     u64 pgoff, u32 pid, u32 d_maj, u32 d_min, u64 ino,
+		     u64 pgoff, u32 d_maj, u32 d_min, u64 ino,
 		     u64 ino_gen, u32 prot, u32 flags,
 		     char *filename, enum map_type type, struct thread *thread);
 struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 06f5a3a4295c..28afe5fa84d6 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -166,11 +166,20 @@ static const char * const mem_lvl[] = {
 	"Uncached",
 };
 
+static const char * const mem_lvlnum[] = {
+	[PERF_MEM_LVLNUM_ANY_CACHE] = "Any cache",
+	[PERF_MEM_LVLNUM_LFB] = "LFB",
+	[PERF_MEM_LVLNUM_RAM] = "RAM",
+	[PERF_MEM_LVLNUM_PMEM] = "PMEM",
+	[PERF_MEM_LVLNUM_NA] = "N/A",
+};
+
 int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 {
 	size_t i, l = 0;
 	u64 m =  PERF_MEM_LVL_NA;
 	u64 hit, miss;
+	int printed;
 
 	if (mem_info)
 		m  = mem_info->data_src.mem_lvl;
@@ -184,17 +193,37 @@ int perf_mem__lvl_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 	/* already taken care of */
 	m &= ~(PERF_MEM_LVL_HIT|PERF_MEM_LVL_MISS);
 
+
+	if (mem_info && mem_info->data_src.mem_remote) {
+		strcat(out, "Remote ");
+		l += 7;
+	}
+
+	printed = 0;
 	for (i = 0; m && i < ARRAY_SIZE(mem_lvl); i++, m >>= 1) {
 		if (!(m & 0x1))
 			continue;
-		if (l) {
+		if (printed++) {
 			strcat(out, " or ");
 			l += 4;
 		}
 		l += scnprintf(out + l, sz - l, mem_lvl[i]);
 	}
-	if (*out == '\0')
-		l += scnprintf(out, sz - l, "N/A");
+
+	if (mem_info && mem_info->data_src.mem_lvl_num) {
+		int lvl = mem_info->data_src.mem_lvl_num;
+		if (printed++) {
+			strcat(out, " or ");
+			l += 4;
+		}
+		if (mem_lvlnum[lvl])
+			l += scnprintf(out + l, sz - l, mem_lvlnum[lvl]);
+		else
+			l += scnprintf(out + l, sz - l, "L%d", lvl);
+	}
+
+	if (l == 0)
+		l += scnprintf(out + l, sz - l, "N/A");
 	if (hit)
 		l += scnprintf(out + l, sz - l, " hit");
 	if (miss)
@@ -231,6 +260,14 @@ int perf_mem__snp_scnprintf(char *out, size_t sz, struct mem_info *mem_info)
 		}
 		l += scnprintf(out + l, sz - l, snoop_access[i]);
 	}
+	if (mem_info &&
+	     (mem_info->data_src.mem_snoopx & PERF_MEM_SNOOPX_FWD)) {
+		if (l) {
+			strcat(out, " or ");
+			l += 4;
+		}
+		l += scnprintf(out + l, sz - l, "Fwd");
+	}
 
 	if (*out == '\0')
 		l += scnprintf(out, sz - l, "N/A");
@@ -279,6 +316,11 @@ int c2c_decode_stats(struct c2c_stats *stats, struct mem_info *mi)
 	u64 lvl    = data_src->mem_lvl;
 	u64 snoop  = data_src->mem_snoop;
 	u64 lock   = data_src->mem_lock;
+	/*
+	 * Skylake might report unknown remote level via this
+	 * bit, consider it when evaluating remote HITMs.
+	 */
+	bool mrem  = data_src->mem_remote;
 	int err = 0;
 
 #define HITM_INC(__f)		\
@@ -324,7 +366,8 @@ do {				\
 			}
 
 			if ((lvl & P(LVL, REM_RAM1)) ||
-			    (lvl & P(LVL, REM_RAM2))) {
+			    (lvl & P(LVL, REM_RAM2)) ||
+			     mrem) {
 				stats->rmt_dram++;
 				if (snoop & P(SNOOP, HIT))
 					stats->ld_shared++;
@@ -334,7 +377,8 @@ do {				\
 		}
 
 		if ((lvl & P(LVL, REM_CCE1)) ||
-		    (lvl & P(LVL, REM_CCE2))) {
+		    (lvl & P(LVL, REM_CCE2)) ||
+		     mrem) {
 			if (snoop & P(SNOOP, HIT))
 				stats->rmt_hit++;
 			else if (snoop & P(SNOOP, HITM))
diff --git a/tools/perf/util/namespaces.c b/tools/perf/util/namespaces.c
index 67dcbcc73c7d..a58e91197729 100644
--- a/tools/perf/util/namespaces.c
+++ b/tools/perf/util/namespaces.c
@@ -9,9 +9,14 @@
 #include "namespaces.h"
 #include "util.h"
 #include "event.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <limits.h>
+#include <sched.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <unistd.h>
 
 struct namespaces *namespaces__new(struct namespaces_event *event)
 {
@@ -35,3 +40,209 @@ void namespaces__free(struct namespaces *namespaces)
 {
 	free(namespaces);
 }
+
+int nsinfo__init(struct nsinfo *nsi)
+{
+	char oldns[PATH_MAX];
+	char spath[PATH_MAX];
+	char *newns = NULL;
+	char *statln = NULL;
+	struct stat old_stat;
+	struct stat new_stat;
+	FILE *f = NULL;
+	size_t linesz = 0;
+	int rv = -1;
+
+	if (snprintf(oldns, PATH_MAX, "/proc/self/ns/mnt") >= PATH_MAX)
+		return rv;
+
+	if (asprintf(&newns, "/proc/%d/ns/mnt", nsi->pid) == -1)
+		return rv;
+
+	if (stat(oldns, &old_stat) < 0)
+		goto out;
+
+	if (stat(newns, &new_stat) < 0)
+		goto out;
+
+	/* Check if the mount namespaces differ, if so then indicate that we
+	 * want to switch as part of looking up dso/map data.
+	 */
+	if (old_stat.st_ino != new_stat.st_ino) {
+		nsi->need_setns = true;
+		nsi->mntns_path = newns;
+		newns = NULL;
+	}
+
+	/* If we're dealing with a process that is in a different PID namespace,
+	 * attempt to work out the innermost tgid for the process.
+	 */
+	if (snprintf(spath, PATH_MAX, "/proc/%d/status", nsi->pid) >= PATH_MAX)
+		goto out;
+
+	f = fopen(spath, "r");
+	if (f == NULL)
+		goto out;
+
+	while (getline(&statln, &linesz, f) != -1) {
+		/* Use tgid if CONFIG_PID_NS is not defined. */
+		if (strstr(statln, "Tgid:") != NULL) {
+			nsi->tgid = (pid_t)strtol(strrchr(statln, '\t'),
+						     NULL, 10);
+			nsi->nstgid = nsi->tgid;
+		}
+
+		if (strstr(statln, "NStgid:") != NULL) {
+			nsi->nstgid = (pid_t)strtol(strrchr(statln, '\t'),
+						     NULL, 10);
+			break;
+		}
+	}
+	rv = 0;
+
+out:
+	if (f != NULL)
+		(void) fclose(f);
+	free(statln);
+	free(newns);
+	return rv;
+}
+
+struct nsinfo *nsinfo__new(pid_t pid)
+{
+	struct nsinfo *nsi;
+
+	if (pid == 0)
+		return NULL;
+
+	nsi = calloc(1, sizeof(*nsi));
+	if (nsi != NULL) {
+		nsi->pid = pid;
+		nsi->tgid = pid;
+		nsi->nstgid = pid;
+		nsi->need_setns = false;
+		/* Init may fail if the process exits while we're trying to look
+		 * at its proc information.  In that case, save the pid but
+		 * don't try to enter the namespace.
+		 */
+		if (nsinfo__init(nsi) == -1)
+			nsi->need_setns = false;
+
+		refcount_set(&nsi->refcnt, 1);
+	}
+
+	return nsi;
+}
+
+struct nsinfo *nsinfo__copy(struct nsinfo *nsi)
+{
+	struct nsinfo *nnsi;
+
+	nnsi = calloc(1, sizeof(*nnsi));
+	if (nnsi != NULL) {
+		nnsi->pid = nsi->pid;
+		nnsi->tgid = nsi->tgid;
+		nnsi->nstgid = nsi->nstgid;
+		nnsi->need_setns = nsi->need_setns;
+		if (nsi->mntns_path) {
+			nnsi->mntns_path = strdup(nsi->mntns_path);
+			if (!nnsi->mntns_path) {
+				free(nnsi);
+				return NULL;
+			}
+		}
+		refcount_set(&nnsi->refcnt, 1);
+	}
+
+	return nnsi;
+}
+
+void nsinfo__delete(struct nsinfo *nsi)
+{
+	zfree(&nsi->mntns_path);
+	free(nsi);
+}
+
+struct nsinfo *nsinfo__get(struct nsinfo *nsi)
+{
+	if (nsi)
+		refcount_inc(&nsi->refcnt);
+	return nsi;
+}
+
+void nsinfo__put(struct nsinfo *nsi)
+{
+	if (nsi && refcount_dec_and_test(&nsi->refcnt))
+		nsinfo__delete(nsi);
+}
+
+void nsinfo__mountns_enter(struct nsinfo *nsi,
+				  struct nscookie *nc)
+{
+	char curpath[PATH_MAX];
+	int oldns = -1;
+	int newns = -1;
+
+	if (nc == NULL)
+		return;
+
+	nc->oldns = -1;
+	nc->newns = -1;
+
+	if (!nsi || !nsi->need_setns)
+		return;
+
+	if (snprintf(curpath, PATH_MAX, "/proc/self/ns/mnt") >= PATH_MAX)
+		return;
+
+	oldns = open(curpath, O_RDONLY);
+	if (oldns < 0)
+		return;
+
+	newns = open(nsi->mntns_path, O_RDONLY);
+	if (newns < 0)
+		goto errout;
+
+	if (setns(newns, CLONE_NEWNS) < 0)
+		goto errout;
+
+	nc->oldns = oldns;
+	nc->newns = newns;
+	return;
+
+errout:
+	if (oldns > -1)
+		close(oldns);
+	if (newns > -1)
+		close(newns);
+}
+
+void nsinfo__mountns_exit(struct nscookie *nc)
+{
+	if (nc == NULL || nc->oldns == -1 || nc->newns == -1)
+		return;
+
+	setns(nc->oldns, CLONE_NEWNS);
+
+	if (nc->oldns > -1) {
+		close(nc->oldns);
+		nc->oldns = -1;
+	}
+
+	if (nc->newns > -1) {
+		close(nc->newns);
+		nc->newns = -1;
+	}
+}
+
+char *nsinfo__realpath(const char *path, struct nsinfo *nsi)
+{
+	char *rpath;
+	struct nscookie nsc;
+
+	nsinfo__mountns_enter(nsi, &nsc);
+	rpath = realpath(path, NULL);
+	nsinfo__mountns_exit(&nsc);
+
+	return rpath;
+}
diff --git a/tools/perf/util/namespaces.h b/tools/perf/util/namespaces.h
index 468f1e9a1484..05d82601c9a6 100644
--- a/tools/perf/util/namespaces.h
+++ b/tools/perf/util/namespaces.h
@@ -11,6 +11,7 @@
 
 #include "../perf.h"
 #include <linux/list.h>
+#include <linux/refcount.h>
 
 struct namespaces_event;
 
@@ -23,4 +24,41 @@ struct namespaces {
 struct namespaces *namespaces__new(struct namespaces_event *event);
 void namespaces__free(struct namespaces *namespaces);
 
+struct nsinfo {
+	pid_t			pid;
+	pid_t			tgid;
+	pid_t			nstgid;
+	bool			need_setns;
+	char			*mntns_path;
+	refcount_t		refcnt;
+};
+
+struct nscookie {
+	int			oldns;
+	int			newns;
+};
+
+int nsinfo__init(struct nsinfo *nsi);
+struct nsinfo *nsinfo__new(pid_t pid);
+struct nsinfo *nsinfo__copy(struct nsinfo *nsi);
+void nsinfo__delete(struct nsinfo *nsi);
+
+struct nsinfo *nsinfo__get(struct nsinfo *nsi);
+void nsinfo__put(struct nsinfo *nsi);
+
+void nsinfo__mountns_enter(struct nsinfo *nsi, struct nscookie *nc);
+void nsinfo__mountns_exit(struct nscookie *nc);
+
+char *nsinfo__realpath(const char *path, struct nsinfo *nsi);
+
+static inline void __nsinfo__zput(struct nsinfo **nsip)
+{
+	if (nsip) {
+		nsinfo__put(*nsip);
+		*nsip = NULL;
+	}
+}
+
+#define nsinfo__zput(nsi) __nsinfo__zput(&nsi)
+
 #endif  /* __PERF_NAMESPACES_H */
diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index 38fd11504015..e71fb5f31e84 100644
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -28,6 +28,7 @@ static const struct branch_mode branch_modes[] = {
 	BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
 	BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
 	BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
+	BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
 	BRANCH_END
 };
 
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 01e779b91c8e..f44aeba51d1f 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -34,7 +34,7 @@
 #ifdef PARSER_DEBUG
 extern int parse_events_debug;
 #endif
-int parse_events_parse(void *data, void *scanner);
+int parse_events_parse(void *parse_state, void *scanner);
 static int get_config_terms(struct list_head *head_config,
 			    struct list_head *head_terms __maybe_unused);
 
@@ -589,7 +589,7 @@ static int add_tracepoint_multi_sys(struct list_head *list, int *idx,
 }
 
 struct __add_bpf_event_param {
-	struct parse_events_evlist *data;
+	struct parse_events_state *parse_state;
 	struct list_head *list;
 	struct list_head *head_config;
 };
@@ -599,7 +599,7 @@ static int add_bpf_event(const char *group, const char *event, int fd,
 {
 	LIST_HEAD(new_evsels);
 	struct __add_bpf_event_param *param = _param;
-	struct parse_events_evlist *evlist = param->data;
+	struct parse_events_state *parse_state = param->parse_state;
 	struct list_head *list = param->list;
 	struct perf_evsel *pos;
 	int err;
@@ -607,8 +607,8 @@ static int add_bpf_event(const char *group, const char *event, int fd,
 	pr_debug("add bpf event %s:%s and attach bpf program %d\n",
 		 group, event, fd);
 
-	err = parse_events_add_tracepoint(&new_evsels, &evlist->idx, group,
-					  event, evlist->error,
+	err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group,
+					  event, parse_state->error,
 					  param->head_config);
 	if (err) {
 		struct perf_evsel *evsel, *tmp;
@@ -632,14 +632,14 @@ static int add_bpf_event(const char *group, const char *event, int fd,
 	return 0;
 }
 
-int parse_events_load_bpf_obj(struct parse_events_evlist *data,
+int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
 			      struct list_head *list,
 			      struct bpf_object *obj,
 			      struct list_head *head_config)
 {
 	int err;
 	char errbuf[BUFSIZ];
-	struct __add_bpf_event_param param = {data, list, head_config};
+	struct __add_bpf_event_param param = {parse_state, list, head_config};
 	static bool registered_unprobe_atexit = false;
 
 	if (IS_ERR(obj) || !obj) {
@@ -680,13 +680,13 @@ int parse_events_load_bpf_obj(struct parse_events_evlist *data,
 
 	return 0;
 errout:
-	data->error->help = strdup("(add -v to see detail)");
-	data->error->str = strdup(errbuf);
+	parse_state->error->help = strdup("(add -v to see detail)");
+	parse_state->error->str = strdup(errbuf);
 	return err;
 }
 
 static int
-parse_events_config_bpf(struct parse_events_evlist *data,
+parse_events_config_bpf(struct parse_events_state *parse_state,
 			struct bpf_object *obj,
 			struct list_head *head_config)
 {
@@ -705,28 +705,28 @@ parse_events_config_bpf(struct parse_events_evlist *data,
 				 "Invalid config term for BPF object");
 			errbuf[BUFSIZ - 1] = '\0';
 
-			data->error->idx = term->err_term;
-			data->error->str = strdup(errbuf);
+			parse_state->error->idx = term->err_term;
+			parse_state->error->str = strdup(errbuf);
 			return -EINVAL;
 		}
 
-		err = bpf__config_obj(obj, term, data->evlist, &error_pos);
+		err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos);
 		if (err) {
-			bpf__strerror_config_obj(obj, term, data->evlist,
+			bpf__strerror_config_obj(obj, term, parse_state->evlist,
 						 &error_pos, err, errbuf,
 						 sizeof(errbuf));
-			data->error->help = strdup(
+			parse_state->error->help = strdup(
 "Hint:\tValid config terms:\n"
 "     \tmap:[<arraymap>].value<indices>=[value]\n"
 "     \tmap:[<eventmap>].event<indices>=[event]\n"
 "\n"
 "     \twhere <indices> is something like [0,3...5] or [all]\n"
 "     \t(add -v to see detail)");
-			data->error->str = strdup(errbuf);
+			parse_state->error->str = strdup(errbuf);
 			if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE)
-				data->error->idx = term->err_val;
+				parse_state->error->idx = term->err_val;
 			else
-				data->error->idx = term->err_term + error_pos;
+				parse_state->error->idx = term->err_term + error_pos;
 			return err;
 		}
 	}
@@ -762,7 +762,7 @@ split_bpf_config_terms(struct list_head *evt_head_config,
 			list_move_tail(&term->list, obj_head_config);
 }
 
-int parse_events_load_bpf(struct parse_events_evlist *data,
+int parse_events_load_bpf(struct parse_events_state *parse_state,
 			  struct list_head *list,
 			  char *bpf_file_name,
 			  bool source,
@@ -790,15 +790,15 @@ int parse_events_load_bpf(struct parse_events_evlist *data,
 						   -err, errbuf,
 						   sizeof(errbuf));
 
-		data->error->help = strdup("(add -v to see detail)");
-		data->error->str = strdup(errbuf);
+		parse_state->error->help = strdup("(add -v to see detail)");
+		parse_state->error->str = strdup(errbuf);
 		return err;
 	}
 
-	err = parse_events_load_bpf_obj(data, list, obj, head_config);
+	err = parse_events_load_bpf_obj(parse_state, list, obj, head_config);
 	if (err)
 		return err;
-	err = parse_events_config_bpf(data, obj, &obj_head_config);
+	err = parse_events_config_bpf(parse_state, obj, &obj_head_config);
 
 	/*
 	 * Caller doesn't know anything about obj_head_config,
@@ -1184,7 +1184,7 @@ int parse_events_add_tracepoint(struct list_head *list, int *idx,
 					    err, head_config);
 }
 
-int parse_events_add_numeric(struct parse_events_evlist *data,
+int parse_events_add_numeric(struct parse_events_state *parse_state,
 			     struct list_head *list,
 			     u32 type, u64 config,
 			     struct list_head *head_config)
@@ -1197,7 +1197,7 @@ int parse_events_add_numeric(struct parse_events_evlist *data,
 	attr.config = config;
 
 	if (head_config) {
-		if (config_attr(&attr, head_config, data->error,
+		if (config_attr(&attr, head_config, parse_state->error,
 				config_term_common))
 			return -EINVAL;
 
@@ -1205,11 +1205,11 @@ int parse_events_add_numeric(struct parse_events_evlist *data,
 			return -ENOMEM;
 	}
 
-	return add_event(list, &data->idx, &attr,
+	return add_event(list, &parse_state->idx, &attr,
 			 get_config_name(head_config), &config_terms);
 }
 
-int parse_events_add_pmu(struct parse_events_evlist *data,
+int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config)
 {
@@ -1232,7 +1232,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
 
 	if (!head_config) {
 		attr.type = pmu->type;
-		evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL);
+		evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu->cpus, NULL);
 		return evsel ? 0 : -ENOMEM;
 	}
 
@@ -1243,16 +1243,16 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
 	 * Configure hardcoded terms first, no need to check
 	 * return value when called with fail == 0 ;)
 	 */
-	if (config_attr(&attr, head_config, data->error, config_term_pmu))
+	if (config_attr(&attr, head_config, parse_state->error, config_term_pmu))
 		return -EINVAL;
 
 	if (get_config_terms(head_config, &config_terms))
 		return -ENOMEM;
 
-	if (perf_pmu__config(pmu, &attr, head_config, data->error))
+	if (perf_pmu__config(pmu, &attr, head_config, parse_state->error))
 		return -EINVAL;
 
-	evsel = __add_event(list, &data->idx, &attr,
+	evsel = __add_event(list, &parse_state->idx, &attr,
 			    get_config_name(head_config), pmu->cpus,
 			    &config_terms);
 	if (evsel) {
@@ -1267,7 +1267,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
 	return evsel ? 0 : -ENOMEM;
 }
 
-int parse_events_multi_pmu_add(struct parse_events_evlist *data,
+int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 			       char *str, struct list_head **listp)
 {
 	struct list_head *head;
@@ -1296,7 +1296,7 @@ int parse_events_multi_pmu_add(struct parse_events_evlist *data,
 					return -1;
 				list_add_tail(&term->list, head);
 
-				if (!parse_events_add_pmu(data, list,
+				if (!parse_events_add_pmu(parse_state, list,
 						  pmu->name, head)) {
 					pr_debug("%s -> %s/%s/\n", str,
 						 pmu->name, alias->str);
@@ -1628,7 +1628,7 @@ perf_pmu__parse_check(const char *name)
 	return r ? r->type : PMU_EVENT_SYMBOL_ERR;
 }
 
-static int parse_events__scanner(const char *str, void *data, int start_token)
+static int parse_events__scanner(const char *str, void *parse_state, int start_token)
 {
 	YY_BUFFER_STATE buffer;
 	void *scanner;
@@ -1643,7 +1643,7 @@ static int parse_events__scanner(const char *str, void *data, int start_token)
 #ifdef PARSER_DEBUG
 	parse_events_debug = 1;
 #endif
-	ret = parse_events_parse(data, scanner);
+	ret = parse_events_parse(parse_state, scanner);
 
 	parse_events__flush_buffer(buffer, scanner);
 	parse_events__delete_buffer(buffer, scanner);
@@ -1656,45 +1656,45 @@ static int parse_events__scanner(const char *str, void *data, int start_token)
  */
 int parse_events_terms(struct list_head *terms, const char *str)
 {
-	struct parse_events_terms data = {
+	struct parse_events_state parse_state = {
 		.terms = NULL,
 	};
 	int ret;
 
-	ret = parse_events__scanner(str, &data, PE_START_TERMS);
+	ret = parse_events__scanner(str, &parse_state, PE_START_TERMS);
 	if (!ret) {
-		list_splice(data.terms, terms);
-		zfree(&data.terms);
+		list_splice(parse_state.terms, terms);
+		zfree(&parse_state.terms);
 		return 0;
 	}
 
-	parse_events_terms__delete(data.terms);
+	parse_events_terms__delete(parse_state.terms);
 	return ret;
 }
 
 int parse_events(struct perf_evlist *evlist, const char *str,
 		 struct parse_events_error *err)
 {
-	struct parse_events_evlist data = {
-		.list   = LIST_HEAD_INIT(data.list),
+	struct parse_events_state parse_state = {
+		.list   = LIST_HEAD_INIT(parse_state.list),
 		.idx    = evlist->nr_entries,
 		.error  = err,
 		.evlist = evlist,
 	};
 	int ret;
 
-	ret = parse_events__scanner(str, &data, PE_START_EVENTS);
+	ret = parse_events__scanner(str, &parse_state, PE_START_EVENTS);
 	perf_pmu__parse_cleanup();
 	if (!ret) {
 		struct perf_evsel *last;
 
-		if (list_empty(&data.list)) {
+		if (list_empty(&parse_state.list)) {
 			WARN_ONCE(true, "WARNING: event parser found nothing");
 			return -1;
 		}
 
-		perf_evlist__splice_list_tail(evlist, &data.list);
-		evlist->nr_groups += data.nr_groups;
+		perf_evlist__splice_list_tail(evlist, &parse_state.list);
+		evlist->nr_groups += parse_state.nr_groups;
 		last = perf_evlist__last(evlist);
 		last->cmdline_group_boundary = true;
 
@@ -2124,7 +2124,7 @@ void print_sdt_events(const char *subsys_glob, const char *event_glob,
 		return;
 	}
 	strlist__for_each_entry(nd, bidlist) {
-		pcache = probe_cache__new(nd->s);
+		pcache = probe_cache__new(nd->s, NULL);
 		if (!pcache)
 			continue;
 		list_for_each_entry(ent, &pcache->entries, node) {
@@ -2520,10 +2520,10 @@ void parse_events__clear_array(struct parse_events_array *a)
 	zfree(&a->ranges);
 }
 
-void parse_events_evlist_error(struct parse_events_evlist *data,
+void parse_events_evlist_error(struct parse_events_state *parse_state,
 			       int idx, const char *str)
 {
-	struct parse_events_error *err = data->error;
+	struct parse_events_error *err = parse_state->error;
 
 	if (!err)
 		return;
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index a235f4d6d5e5..635135125111 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -108,16 +108,13 @@ struct parse_events_error {
 	char *help;	/* optional help string */
 };
 
-struct parse_events_evlist {
+struct parse_events_state {
 	struct list_head	   list;
 	int			   idx;
 	int			   nr_groups;
 	struct parse_events_error *error;
 	struct perf_evlist	  *evlist;
-};
-
-struct parse_events_terms {
-	struct list_head *terms;
+	struct list_head	  *terms;
 };
 
 void parse_events__shrink_config_terms(void);
@@ -143,18 +140,18 @@ int parse_events_add_tracepoint(struct list_head *list, int *idx,
 				const char *sys, const char *event,
 				struct parse_events_error *error,
 				struct list_head *head_config);
-int parse_events_load_bpf(struct parse_events_evlist *data,
+int parse_events_load_bpf(struct parse_events_state *parse_state,
 			  struct list_head *list,
 			  char *bpf_file_name,
 			  bool source,
 			  struct list_head *head_config);
 /* Provide this function for perf test */
 struct bpf_object;
-int parse_events_load_bpf_obj(struct parse_events_evlist *data,
+int parse_events_load_bpf_obj(struct parse_events_state *parse_state,
 			      struct list_head *list,
 			      struct bpf_object *obj,
 			      struct list_head *head_config);
-int parse_events_add_numeric(struct parse_events_evlist *data,
+int parse_events_add_numeric(struct parse_events_state *parse_state,
 			     struct list_head *list,
 			     u32 type, u64 config,
 			     struct list_head *head_config);
@@ -164,11 +161,11 @@ int parse_events_add_cache(struct list_head *list, int *idx,
 			   struct list_head *head_config);
 int parse_events_add_breakpoint(struct list_head *list, int *idx,
 				void *ptr, char *type, u64 len);
-int parse_events_add_pmu(struct parse_events_evlist *data,
+int parse_events_add_pmu(struct parse_events_state *parse_state,
 			 struct list_head *list, char *name,
 			 struct list_head *head_config);
 
-int parse_events_multi_pmu_add(struct parse_events_evlist *data,
+int parse_events_multi_pmu_add(struct parse_events_state *parse_state,
 			       char *str,
 			       struct list_head **listp);
 
@@ -180,7 +177,7 @@ perf_pmu__parse_check(const char *name);
 void parse_events__set_leader(char *name, struct list_head *list);
 void parse_events_update_lists(struct list_head *list_event,
 			       struct list_head *list_all);
-void parse_events_evlist_error(struct parse_events_evlist *data,
+void parse_events_evlist_error(struct parse_events_state *parse_state,
 			       int idx, const char *str);
 
 void print_events(const char *event_glob, bool name_only, bool quiet,
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 660fca05bc93..c42edeac451f 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -53,6 +53,21 @@ static int str(yyscan_t scanner, int token)
 	return token;
 }
 
+static bool isbpf(yyscan_t scanner)
+{
+	char *text = parse_events_get_text(scanner);
+	int len = strlen(text);
+
+	if (len < 2)
+		return false;
+	if ((text[len - 1] == 'c' || text[len - 1] == 'o') &&
+	    text[len - 2] == '.')
+		return true;
+	if (len > 4 && !strcmp(text + len - 4, ".obj"))
+		return true;
+	return false;
+}
+
 /*
  * This function is called when the parser gets two kind of input:
  *
@@ -136,8 +151,8 @@ do {							\
 group		[^,{}/]*[{][^}]*[}][^,{}/]*
 event_pmu	[^,{}/]+[/][^/]*[/][^,{}/]*
 event		[^,{}/]+
-bpf_object	[^,{}]+\.(o|bpf)
-bpf_source	[^,{}]+\.c
+bpf_object	[^,{}]+\.(o|bpf)[a-zA-Z0-9._]*
+bpf_source	[^,{}]+\.c[a-zA-Z0-9._]*
 
 num_dec		[0-9]+
 num_hex		0x[a-fA-F0-9]+
@@ -307,8 +322,8 @@ r{num_raw_hex}		{ return raw(yyscanner); }
 {num_hex}		{ return value(yyscanner, 16); }
 
 {modifier_event}	{ return str(yyscanner, PE_MODIFIER_EVENT); }
-{bpf_object}		{ return str(yyscanner, PE_BPF_OBJECT); }
-{bpf_source}		{ return str(yyscanner, PE_BPF_SOURCE); }
+{bpf_object}		{ if (!isbpf(yyscanner)) REJECT; return str(yyscanner, PE_BPF_OBJECT); }
+{bpf_source}		{ if (!isbpf(yyscanner)) REJECT; return str(yyscanner, PE_BPF_SOURCE); }
 {name}			{ return pmu_str_check(yyscanner); }
 "/"			{ BEGIN(config); return '/'; }
 -			{ return '-'; }
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
index 04fd8c9af9f9..e81a20ea8d7d 100644
--- a/tools/perf/util/parse-events.y
+++ b/tools/perf/util/parse-events.y
@@ -1,5 +1,5 @@
 %pure-parser
-%parse-param {void *_data}
+%parse-param {void *_parse_state}
 %parse-param {void *scanner}
 %lex-param {void* scanner}
 %locations
@@ -17,7 +17,7 @@
 #include "parse-events.h"
 #include "parse-events-bison.h"
 
-void parse_events_error(YYLTYPE *loc, void *data, void *scanner, char const *msg);
+void parse_events_error(YYLTYPE *loc, void *parse_state, void *scanner, char const *msg);
 
 #define ABORT_ON(val) \
 do { \
@@ -33,11 +33,11 @@ do { \
 } while (0)
 
 static void inc_group_count(struct list_head *list,
-		       struct parse_events_evlist *data)
+		       struct parse_events_state *parse_state)
 {
 	/* Count groups only have more than 1 members */
 	if (!list_is_last(list->next, list))
-		data->nr_groups++;
+		parse_state->nr_groups++;
 }
 
 %}
@@ -115,9 +115,9 @@ PE_START_TERMS  start_terms
 
 start_events: groups
 {
-	struct parse_events_evlist *data = _data;
+	struct parse_events_state *parse_state = _parse_state;
 
-	parse_events_update_lists($1, &data->list);
+	parse_events_update_lists($1, &parse_state->list);
 }
 
 groups:
@@ -159,7 +159,7 @@ PE_NAME '{' events '}'
 {
 	struct list_head *list = $3;
 
-	inc_group_count(list, _data);
+	inc_group_count(list, _parse_state);
 	parse_events__set_leader($1, list);
 	$$ = list;
 }
@@ -168,7 +168,7 @@ PE_NAME '{' events '}'
 {
 	struct list_head *list = $2;
 
-	inc_group_count(list, _data);
+	inc_group_count(list, _parse_state);
 	parse_events__set_leader(NULL, list);
 	$$ = list;
 }
@@ -225,14 +225,13 @@ event_def: event_pmu |
 event_pmu:
 PE_NAME opt_event_config
 {
-	struct parse_events_evlist *data = _data;
 	struct list_head *list, *orig_terms, *terms;
 
 	if (parse_events_copy_term_list($2, &orig_terms))
 		YYABORT;
 
 	ALLOC_LIST(list);
-	if (parse_events_add_pmu(data, list, $1, $2)) {
+	if (parse_events_add_pmu(_parse_state, list, $1, $2)) {
 		struct perf_pmu *pmu = NULL;
 		int ok = 0;
 
@@ -245,7 +244,7 @@ PE_NAME opt_event_config
 			if (!strncmp($1, name, strlen($1))) {
 				if (parse_events_copy_term_list(orig_terms, &terms))
 					YYABORT;
-				if (!parse_events_add_pmu(data, list, pmu->name, terms))
+				if (!parse_events_add_pmu(_parse_state, list, pmu->name, terms))
 					ok++;
 				parse_events_terms__delete(terms);
 			}
@@ -262,7 +261,7 @@ PE_KERNEL_PMU_EVENT sep_dc
 {
 	struct list_head *list;
 
-	if (parse_events_multi_pmu_add(_data, $1, &list) < 0)
+	if (parse_events_multi_pmu_add(_parse_state, $1, &list) < 0)
 		YYABORT;
 	$$ = list;
 }
@@ -273,7 +272,7 @@ PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
 	char pmu_name[128];
 
 	snprintf(&pmu_name, 128, "%s-%s", $1, $3);
-	if (parse_events_multi_pmu_add(_data, pmu_name, &list) < 0)
+	if (parse_events_multi_pmu_add(_parse_state, pmu_name, &list) < 0)
 		YYABORT;
 	$$ = list;
 }
@@ -286,62 +285,60 @@ PE_VALUE_SYM_SW
 event_legacy_symbol:
 value_sym '/' event_config '/'
 {
-	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 	int type = $1 >> 16;
 	int config = $1 & 255;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_numeric(data, list, type, config, $3));
+	ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, $3));
 	parse_events_terms__delete($3);
 	$$ = list;
 }
 |
 value_sym sep_slash_dc
 {
-	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 	int type = $1 >> 16;
 	int config = $1 & 255;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_numeric(data, list, type, config, NULL));
+	ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, NULL));
 	$$ = list;
 }
 
 event_legacy_cache:
 PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT opt_event_config
 {
-	struct parse_events_evlist *data = _data;
-	struct parse_events_error *error = data->error;
+	struct parse_events_state *parse_state = _parse_state;
+	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_cache(list, &data->idx, $1, $3, $5, error, $6));
+	ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, $5, error, $6));
 	parse_events_terms__delete($6);
 	$$ = list;
 }
 |
 PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT opt_event_config
 {
-	struct parse_events_evlist *data = _data;
-	struct parse_events_error *error = data->error;
+	struct parse_events_state *parse_state = _parse_state;
+	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_cache(list, &data->idx, $1, $3, NULL, error, $4));
+	ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, $3, NULL, error, $4));
 	parse_events_terms__delete($4);
 	$$ = list;
 }
 |
 PE_NAME_CACHE_TYPE opt_event_config
 {
-	struct parse_events_evlist *data = _data;
-	struct parse_events_error *error = data->error;
+	struct parse_events_state *parse_state = _parse_state;
+	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_cache(list, &data->idx, $1, NULL, NULL, error, $2));
+	ABORT_ON(parse_events_add_cache(list, &parse_state->idx, $1, NULL, NULL, error, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
 }
@@ -349,44 +346,44 @@ PE_NAME_CACHE_TYPE opt_event_config
 event_legacy_mem:
 PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc
 {
-	struct parse_events_evlist *data = _data;
+	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, $6, $4));
 	$$ = list;
 }
 |
 PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc
 {
-	struct parse_events_evlist *data = _data;
+	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, NULL, $4));
 	$$ = list;
 }
 |
 PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
 {
-	struct parse_events_evlist *data = _data;
+	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, $4, 0));
 	$$ = list;
 }
 |
 PE_PREFIX_MEM PE_VALUE sep_dc
 {
-	struct parse_events_evlist *data = _data;
+	struct parse_events_state *parse_state = _parse_state;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+	ABORT_ON(parse_events_add_breakpoint(list, &parse_state->idx,
 					     (void *) $2, NULL, 0));
 	$$ = list;
 }
@@ -394,15 +391,15 @@ PE_PREFIX_MEM PE_VALUE sep_dc
 event_legacy_tracepoint:
 tracepoint_name opt_event_config
 {
-	struct parse_events_evlist *data = _data;
-	struct parse_events_error *error = data->error;
+	struct parse_events_state *parse_state = _parse_state;
+	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
 	if (error)
 		error->idx = @1.first_column;
 
-	if (parse_events_add_tracepoint(list, &data->idx, $1.sys, $1.event,
+	if (parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event,
 					error, $2))
 		return -1;
 
@@ -432,11 +429,10 @@ PE_NAME ':' PE_NAME
 event_legacy_numeric:
 PE_VALUE ':' PE_VALUE opt_event_config
 {
-	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_numeric(data, list, (u32)$1, $3, $4));
+	ABORT_ON(parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4));
 	parse_events_terms__delete($4);
 	$$ = list;
 }
@@ -444,11 +440,10 @@ PE_VALUE ':' PE_VALUE opt_event_config
 event_legacy_raw:
 PE_RAW opt_event_config
 {
-	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_add_numeric(data, list, PERF_TYPE_RAW, $1, $2));
+	ABORT_ON(parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, $1, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
 }
@@ -456,23 +451,22 @@ PE_RAW opt_event_config
 event_bpf_file:
 PE_BPF_OBJECT opt_event_config
 {
-	struct parse_events_evlist *data = _data;
-	struct parse_events_error *error = data->error;
+	struct parse_events_state *parse_state = _parse_state;
+	struct parse_events_error *error = parse_state->error;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_load_bpf(data, list, $1, false, $2));
+	ABORT_ON(parse_events_load_bpf(parse_state, list, $1, false, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
 }
 |
 PE_BPF_SOURCE opt_event_config
 {
-	struct parse_events_evlist *data = _data;
 	struct list_head *list;
 
 	ALLOC_LIST(list);
-	ABORT_ON(parse_events_load_bpf(data, list, $1, true, $2));
+	ABORT_ON(parse_events_load_bpf(_parse_state, list, $1, true, $2));
 	parse_events_terms__delete($2);
 	$$ = list;
 }
@@ -494,8 +488,8 @@ opt_event_config:
 
 start_terms: event_config
 {
-	struct parse_events_terms *data = _data;
-	data->terms = $1;
+	struct parse_events_state *parse_state = _parse_state;
+	parse_state->terms = $1;
 }
 
 event_config:
@@ -685,9 +679,9 @@ sep_slash_dc: '/' | ':' |
 
 %%
 
-void parse_events_error(YYLTYPE *loc, void *data,
+void parse_events_error(YYLTYPE *loc, void *parse_state,
 			void *scanner __maybe_unused,
 			char const *msg __maybe_unused)
 {
-	parse_events_evlist_error(data, loc->last_column, "parser error");
+	parse_events_evlist_error(parse_state, loc->last_column, "parser error");
 }
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index a2670e9d652d..b7aaf9b2294d 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -184,13 +184,19 @@ static struct map *kernel_get_module_map(const char *module)
 	return NULL;
 }
 
-struct map *get_target_map(const char *target, bool user)
+struct map *get_target_map(const char *target, struct nsinfo *nsi, bool user)
 {
 	/* Init maps of given executable or kernel */
-	if (user)
-		return dso__new_map(target);
-	else
+	if (user) {
+		struct map *map;
+
+		map = dso__new_map(target);
+		if (map && map->dso)
+			map->dso->nsinfo = nsinfo__get(nsi);
+		return map;
+	} else {
 		return kernel_get_module_map(target);
+	}
 }
 
 static int convert_exec_to_group(const char *exec, char **result)
@@ -366,7 +372,8 @@ found:
 static int find_alternative_probe_point(struct debuginfo *dinfo,
 					struct perf_probe_point *pp,
 					struct perf_probe_point *result,
-					const char *target, bool uprobes)
+					const char *target, struct nsinfo *nsi,
+					bool uprobes)
 {
 	struct map *map = NULL;
 	struct symbol *sym;
@@ -377,7 +384,7 @@ static int find_alternative_probe_point(struct debuginfo *dinfo,
 	if (!pp->function || pp->file)
 		return -ENOTSUP;
 
-	map = get_target_map(target, uprobes);
+	map = get_target_map(target, nsi, uprobes);
 	if (!map)
 		return -EINVAL;
 
@@ -421,8 +428,8 @@ static int get_alternative_probe_event(struct debuginfo *dinfo,
 
 	memcpy(tmp, &pev->point, sizeof(*tmp));
 	memset(&pev->point, 0, sizeof(pev->point));
-	ret = find_alternative_probe_point(dinfo, tmp, &pev->point,
-					   pev->target, pev->uprobes);
+	ret = find_alternative_probe_point(dinfo, tmp, &pev->point, pev->target,
+					   pev->nsi, pev->uprobes);
 	if (ret < 0)
 		memcpy(&pev->point, tmp, sizeof(*tmp));
 
@@ -444,7 +451,7 @@ static int get_alternative_line_range(struct debuginfo *dinfo,
 	if (lr->end != INT_MAX)
 		len = lr->end - lr->start;
 	ret = find_alternative_probe_point(dinfo, &pp, &result,
-					   target, user);
+					   target, NULL, user);
 	if (!ret) {
 		lr->function = result.function;
 		lr->file = result.file;
@@ -457,12 +464,14 @@ static int get_alternative_line_range(struct debuginfo *dinfo,
 }
 
 /* Open new debuginfo of given module */
-static struct debuginfo *open_debuginfo(const char *module, bool silent)
+static struct debuginfo *open_debuginfo(const char *module, struct nsinfo *nsi,
+					bool silent)
 {
 	const char *path = module;
 	char reason[STRERR_BUFSIZE];
 	struct debuginfo *ret = NULL;
 	struct dso *dso = NULL;
+	struct nscookie nsc;
 	int err;
 
 	if (!module || !strchr(module, '/')) {
@@ -480,6 +489,7 @@ static struct debuginfo *open_debuginfo(const char *module, bool silent)
 		}
 		path = dso->long_name;
 	}
+	nsinfo__mountns_enter(nsi, &nsc);
 	ret = debuginfo__new(path);
 	if (!ret && !silent) {
 		pr_warning("The %s file has no debug information.\n", path);
@@ -489,6 +499,7 @@ static struct debuginfo *open_debuginfo(const char *module, bool silent)
 			pr_warning("Rebuild with -g, ");
 		pr_warning("or install an appropriate debuginfo package.\n");
 	}
+	nsinfo__mountns_exit(&nsc);
 	return ret;
 }
 
@@ -516,7 +527,7 @@ static struct debuginfo *debuginfo_cache__open(const char *module, bool silent)
 		goto out;
 	}
 
-	debuginfo_cache = open_debuginfo(module, silent);
+	debuginfo_cache = open_debuginfo(module, NULL, silent);
 	if (!debuginfo_cache)
 		zfree(&debuginfo_cache_path);
 out:
@@ -531,14 +542,18 @@ static void debuginfo_cache__exit(void)
 }
 
 
-static int get_text_start_address(const char *exec, unsigned long *address)
+static int get_text_start_address(const char *exec, unsigned long *address,
+				  struct nsinfo *nsi)
 {
 	Elf *elf;
 	GElf_Ehdr ehdr;
 	GElf_Shdr shdr;
 	int fd, ret = -ENOENT;
+	struct nscookie nsc;
 
+	nsinfo__mountns_enter(nsi, &nsc);
 	fd = open(exec, O_RDONLY);
+	nsinfo__mountns_exit(&nsc);
 	if (fd < 0)
 		return -errno;
 
@@ -582,7 +597,7 @@ static int find_perf_probe_point_from_dwarf(struct probe_trace_point *tp,
 			ret = -EINVAL;
 			goto error;
 		}
-		ret = get_text_start_address(tp->module, &stext);
+		ret = get_text_start_address(tp->module, &stext, NULL);
 		if (ret < 0)
 			goto error;
 		addr += stext;
@@ -659,7 +674,7 @@ post_process_offline_probe_trace_events(struct probe_trace_event *tevs,
 
 	/* Prepare a map for offline binary */
 	map = dso__new_map(pathname);
-	if (!map || get_text_start_address(pathname, &stext) < 0) {
+	if (!map || get_text_start_address(pathname, &stext, NULL) < 0) {
 		pr_warning("Failed to get ELF symbols for %s\n", pathname);
 		return -EINVAL;
 	}
@@ -676,7 +691,8 @@ post_process_offline_probe_trace_events(struct probe_trace_event *tevs,
 }
 
 static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs,
-					  int ntevs, const char *exec)
+					  int ntevs, const char *exec,
+					  struct nsinfo *nsi)
 {
 	int i, ret = 0;
 	unsigned long stext = 0;
@@ -684,7 +700,7 @@ static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs,
 	if (!exec)
 		return 0;
 
-	ret = get_text_start_address(exec, &stext);
+	ret = get_text_start_address(exec, &stext, nsi);
 	if (ret < 0)
 		return ret;
 
@@ -715,7 +731,7 @@ post_process_module_probe_trace_events(struct probe_trace_event *tevs,
 	if (!module)
 		return 0;
 
-	map = get_target_map(module, false);
+	map = get_target_map(module, NULL, false);
 	if (!map || debuginfo__get_text_offset(dinfo, &text_offs, true) < 0) {
 		pr_warning("Failed to get ELF symbols for %s\n", module);
 		return -EINVAL;
@@ -802,7 +818,8 @@ static int post_process_probe_trace_events(struct perf_probe_event *pev,
 	int ret;
 
 	if (uprobe)
-		ret = add_exec_to_probe_trace_events(tevs, ntevs, module);
+		ret = add_exec_to_probe_trace_events(tevs, ntevs, module,
+						     pev->nsi);
 	else if (module)
 		/* Currently ref_reloc_sym based probe is not for drivers */
 		ret = post_process_module_probe_trace_events(tevs, ntevs,
@@ -825,7 +842,7 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
 	struct debuginfo *dinfo;
 	int ntevs, ret = 0;
 
-	dinfo = open_debuginfo(pev->target, !need_dwarf);
+	dinfo = open_debuginfo(pev->target, pev->nsi, !need_dwarf);
 	if (!dinfo) {
 		if (need_dwarf)
 			return -ENOENT;
@@ -945,7 +962,7 @@ static int __show_line_range(struct line_range *lr, const char *module,
 	char sbuf[STRERR_BUFSIZE];
 
 	/* Search a line range */
-	dinfo = open_debuginfo(module, false);
+	dinfo = open_debuginfo(module, NULL, false);
 	if (!dinfo)
 		return -ENOENT;
 
@@ -1021,14 +1038,18 @@ end:
 	return ret;
 }
 
-int show_line_range(struct line_range *lr, const char *module, bool user)
+int show_line_range(struct line_range *lr, const char *module,
+		    struct nsinfo *nsi, bool user)
 {
 	int ret;
+	struct nscookie nsc;
 
 	ret = init_probe_symbol_maps(user);
 	if (ret < 0)
 		return ret;
+	nsinfo__mountns_enter(nsi, &nsc);
 	ret = __show_line_range(lr, module, user);
+	nsinfo__mountns_exit(&nsc);
 	exit_probe_symbol_maps();
 
 	return ret;
@@ -1111,7 +1132,7 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs,
 	if (ret < 0)
 		return ret;
 
-	dinfo = open_debuginfo(pevs->target, false);
+	dinfo = open_debuginfo(pevs->target, pevs->nsi, false);
 	if (!dinfo) {
 		ret = -ENOENT;
 		goto out;
@@ -1155,6 +1176,7 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
 
 int show_line_range(struct line_range *lr __maybe_unused,
 		    const char *module __maybe_unused,
+		    struct nsinfo *nsi __maybe_unused,
 		    bool user __maybe_unused)
 {
 	pr_warning("Debuginfo-analysis is not supported.\n");
@@ -2373,7 +2395,7 @@ kprobe_blacklist__find_by_address(struct list_head *blacklist,
 	struct kprobe_blacklist_node *node;
 
 	list_for_each_entry(node, blacklist, list) {
-		if (node->start <= address && address <= node->end)
+		if (node->start <= address && address < node->end)
 			return node;
 	}
 
@@ -2703,6 +2725,7 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 	struct probe_trace_event *tev = NULL;
 	struct probe_cache *cache = NULL;
 	struct strlist *namelist[2] = {NULL, NULL};
+	struct nscookie nsc;
 
 	up = pev->uprobes ? 1 : 0;
 	fd[up] = __open_probe_file_and_namelist(up, &namelist[up]);
@@ -2729,7 +2752,9 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 		if (ret < 0)
 			break;
 
+		nsinfo__mountns_enter(pev->nsi, &nsc);
 		ret = probe_file__add_event(fd[up], tev);
+		nsinfo__mountns_exit(&nsc);
 		if (ret < 0)
 			break;
 
@@ -2744,7 +2769,7 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
 	if (ret == -EINVAL && pev->uprobes)
 		warn_uprobe_event_compat(tev);
 	if (ret == 0 && probe_conf.cache) {
-		cache = probe_cache__new(pev->target);
+		cache = probe_cache__new(pev->target, pev->nsi);
 		if (!cache ||
 		    probe_cache__add_entry(cache, pev, tevs, ntevs) < 0 ||
 		    probe_cache__commit(cache) < 0)
@@ -2805,7 +2830,7 @@ static int find_probe_trace_events_from_map(struct perf_probe_event *pev,
 	int ret, i, j, skipped = 0;
 	char *mod_name;
 
-	map = get_target_map(pev->target, pev->uprobes);
+	map = get_target_map(pev->target, pev->nsi, pev->uprobes);
 	if (!map) {
 		ret = -EINVAL;
 		goto out;
@@ -3094,7 +3119,7 @@ static int find_cached_events(struct perf_probe_event *pev,
 	int ntevs = 0;
 	int ret = 0;
 
-	cache = probe_cache__new(target);
+	cache = probe_cache__new(target, pev->nsi);
 	/* Return 0 ("not found") if the target has no probe cache. */
 	if (!cache)
 		return 0;
@@ -3184,7 +3209,7 @@ static int find_probe_trace_events_from_cache(struct perf_probe_event *pev,
 		else
 			return find_cached_events(pev, tevs, pev->target);
 	}
-	cache = probe_cache__new(pev->target);
+	cache = probe_cache__new(pev->target, pev->nsi);
 	if (!cache)
 		return 0;
 
@@ -3345,13 +3370,16 @@ int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs)
 void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs)
 {
 	int i, j;
+	struct perf_probe_event *pev;
 
 	/* Loop 3: cleanup and free trace events  */
 	for (i = 0; i < npevs; i++) {
+		pev = &pevs[i];
 		for (j = 0; j < pevs[i].ntevs; j++)
 			clear_probe_trace_event(&pevs[i].tevs[j]);
 		zfree(&pevs[i].tevs);
 		pevs[i].ntevs = 0;
+		nsinfo__zput(pev->nsi);
 		clear_perf_probe_event(&pevs[i]);
 	}
 }
@@ -3409,8 +3437,8 @@ out:
 	return ret;
 }
 
-int show_available_funcs(const char *target, struct strfilter *_filter,
-					bool user)
+int show_available_funcs(const char *target, struct nsinfo *nsi,
+			 struct strfilter *_filter, bool user)
 {
         struct rb_node *nd;
 	struct map *map;
@@ -3421,7 +3449,7 @@ int show_available_funcs(const char *target, struct strfilter *_filter,
 		return ret;
 
 	/* Get a symbol map */
-	map = get_target_map(target, user);
+	map = get_target_map(target, nsi, user);
 	if (!map) {
 		pr_err("Failed to get a map for %s\n", (target) ? : "kernel");
 		return -EINVAL;
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 5812947418dd..078681d12168 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -4,6 +4,7 @@
 #include <linux/compiler.h>
 #include <stdbool.h>
 #include "intlist.h"
+#include "namespaces.h"
 
 /* Probe related configurations */
 struct probe_conf {
@@ -92,6 +93,7 @@ struct perf_probe_event {
 	struct perf_probe_arg	*args;	/* Arguments */
 	struct probe_trace_event *tevs;
 	int			ntevs;
+	struct nsinfo		*nsi;	/* Target namespace */
 };
 
 /* Line range */
@@ -163,10 +165,12 @@ int show_perf_probe_event(const char *group, const char *event,
 			  struct perf_probe_event *pev,
 			  const char *module, bool use_stdout);
 int show_perf_probe_events(struct strfilter *filter);
-int show_line_range(struct line_range *lr, const char *module, bool user);
+int show_line_range(struct line_range *lr, const char *module,
+		    struct nsinfo *nsi, bool user);
 int show_available_vars(struct perf_probe_event *pevs, int npevs,
 			struct strfilter *filter);
-int show_available_funcs(const char *module, struct strfilter *filter, bool user);
+int show_available_funcs(const char *module, struct nsinfo *nsi,
+			 struct strfilter *filter, bool user);
 void arch__fix_tev_from_maps(struct perf_probe_event *pev,
 			     struct probe_trace_event *tev, struct map *map,
 			     struct symbol *sym);
@@ -180,7 +184,7 @@ int e_snprintf(char *str, size_t size, const char *format, ...) __printf(3, 4);
 int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
 			    struct perf_probe_arg *pvar);
 
-struct map *get_target_map(const char *target, bool user);
+struct map *get_target_map(const char *target, struct nsinfo *nsi, bool user);
 
 void arch__post_process_probe_trace_events(struct perf_probe_event *pev,
 					   int ntevs);
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index d679389e627c..cdf8d83a484c 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -412,13 +412,15 @@ int probe_cache_entry__get_event(struct probe_cache_entry *entry,
 }
 
 /* For the kernel probe caches, pass target = NULL or DSO__NAME_KALLSYMS */
-static int probe_cache__open(struct probe_cache *pcache, const char *target)
+static int probe_cache__open(struct probe_cache *pcache, const char *target,
+			     struct nsinfo *nsi)
 {
 	char cpath[PATH_MAX];
 	char sbuildid[SBUILD_ID_SIZE];
 	char *dir_name = NULL;
 	bool is_kallsyms = false;
 	int ret, fd;
+	struct nscookie nsc;
 
 	if (target && build_id_cache__cached(target)) {
 		/* This is a cached buildid */
@@ -431,8 +433,11 @@ static int probe_cache__open(struct probe_cache *pcache, const char *target)
 		target = DSO__NAME_KALLSYMS;
 		is_kallsyms = true;
 		ret = sysfs__sprintf_build_id("/", sbuildid);
-	} else
+	} else {
+		nsinfo__mountns_enter(nsi, &nsc);
 		ret = filename__sprintf_build_id(target, sbuildid);
+		nsinfo__mountns_exit(&nsc);
+	}
 
 	if (ret < 0) {
 		pr_debug("Failed to get build-id from %s.\n", target);
@@ -441,7 +446,7 @@ static int probe_cache__open(struct probe_cache *pcache, const char *target)
 
 	/* If we have no buildid cache, make it */
 	if (!build_id_cache__cached(sbuildid)) {
-		ret = build_id_cache__add_s(sbuildid, target,
+		ret = build_id_cache__add_s(sbuildid, target, nsi,
 					    is_kallsyms, NULL);
 		if (ret < 0) {
 			pr_debug("Failed to add build-id cache: %s\n", target);
@@ -449,7 +454,7 @@ static int probe_cache__open(struct probe_cache *pcache, const char *target)
 		}
 	}
 
-	dir_name = build_id_cache__cachedir(sbuildid, target, is_kallsyms,
+	dir_name = build_id_cache__cachedir(sbuildid, target, nsi, is_kallsyms,
 					    false);
 found:
 	if (!dir_name) {
@@ -554,7 +559,7 @@ void probe_cache__delete(struct probe_cache *pcache)
 	free(pcache);
 }
 
-struct probe_cache *probe_cache__new(const char *target)
+struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi)
 {
 	struct probe_cache *pcache = probe_cache__alloc();
 	int ret;
@@ -562,7 +567,7 @@ struct probe_cache *probe_cache__new(const char *target)
 	if (!pcache)
 		return NULL;
 
-	ret = probe_cache__open(pcache, target);
+	ret = probe_cache__open(pcache, target, nsi);
 	if (ret < 0) {
 		pr_debug("Cache open error: %d\n", ret);
 		goto out_err;
@@ -974,7 +979,7 @@ int probe_cache__show_all_caches(struct strfilter *filter)
 		return -EINVAL;
 	}
 	strlist__for_each_entry(nd, bidlist) {
-		pcache = probe_cache__new(nd->s);
+		pcache = probe_cache__new(nd->s, NULL);
 		if (!pcache)
 			continue;
 		if (!list_empty(&pcache->entries)) {
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
index 5ecc9d3925db..2ca4163abafe 100644
--- a/tools/perf/util/probe-file.h
+++ b/tools/perf/util/probe-file.h
@@ -51,7 +51,7 @@ int probe_file__del_strlist(int fd, struct strlist *namelist);
 int probe_cache_entry__get_event(struct probe_cache_entry *entry,
 				 struct probe_trace_event **tevs);
 
-struct probe_cache *probe_cache__new(const char *target);
+struct probe_cache *probe_cache__new(const char *target, struct nsinfo *nsi);
 int probe_cache__add_entry(struct probe_cache *pcache,
 			   struct perf_probe_event *pev,
 			   struct probe_trace_event *tevs, int ntevs);
@@ -69,7 +69,7 @@ int probe_cache__show_all_caches(struct strfilter *filter);
 bool probe_type_is_available(enum probe_type type);
 bool kretprobe_offset_is_supported(void);
 #else	/* ! HAVE_LIBELF_SUPPORT */
-static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused)
+static inline struct probe_cache *probe_cache__new(const char *tgt __maybe_unused, struct nsinfo *nsi __maybe_unused)
 {
 	return NULL;
 }
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 9f3b0d9754a8..e66dc495809a 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -10,6 +10,7 @@ util/ctype.c
 util/evlist.c
 util/evsel.c
 util/cpumap.c
+util/namespaces.c
 ../lib/bitmap.c
 ../lib/find_bit.c
 ../lib/hweight.c
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 57b7a00e6f16..c7187f067d31 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -116,6 +116,34 @@ static PyObject *get_handler(const char *handler_name)
 	return handler;
 }
 
+static int get_argument_count(PyObject *handler)
+{
+	int arg_count = 0;
+
+	/*
+	 * The attribute for the code object is func_code in Python 2,
+	 * whereas it is __code__ in Python 3.0+.
+	 */
+	PyObject *code_obj = PyObject_GetAttrString(handler,
+		"func_code");
+	if (PyErr_Occurred()) {
+		PyErr_Clear();
+		code_obj = PyObject_GetAttrString(handler,
+			"__code__");
+	}
+	PyErr_Clear();
+	if (code_obj) {
+		PyObject *arg_count_obj = PyObject_GetAttrString(code_obj,
+			"co_argcount");
+		if (arg_count_obj) {
+			arg_count = (int) PyInt_AsLong(arg_count_obj);
+			Py_DECREF(arg_count_obj);
+		}
+		Py_DECREF(code_obj);
+	}
+	return arg_count;
+}
+
 static void call_object(PyObject *handler, PyObject *args, const char *die_msg)
 {
 	PyObject *retval;
@@ -391,13 +419,115 @@ exit:
 	return pylist;
 }
 
+static PyObject *get_sample_value_as_tuple(struct sample_read_value *value)
+{
+	PyObject *t;
+
+	t = PyTuple_New(2);
+	if (!t)
+		Py_FatalError("couldn't create Python tuple");
+	PyTuple_SetItem(t, 0, PyLong_FromUnsignedLongLong(value->id));
+	PyTuple_SetItem(t, 1, PyLong_FromUnsignedLongLong(value->value));
+	return t;
+}
+
+static void set_sample_read_in_dict(PyObject *dict_sample,
+					 struct perf_sample *sample,
+					 struct perf_evsel *evsel)
+{
+	u64 read_format = evsel->attr.read_format;
+	PyObject *values;
+	unsigned int i;
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) {
+		pydict_set_item_string_decref(dict_sample, "time_enabled",
+			PyLong_FromUnsignedLongLong(sample->read.time_enabled));
+	}
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) {
+		pydict_set_item_string_decref(dict_sample, "time_running",
+			PyLong_FromUnsignedLongLong(sample->read.time_running));
+	}
+
+	if (read_format & PERF_FORMAT_GROUP)
+		values = PyList_New(sample->read.group.nr);
+	else
+		values = PyList_New(1);
+
+	if (!values)
+		Py_FatalError("couldn't create Python list");
+
+	if (read_format & PERF_FORMAT_GROUP) {
+		for (i = 0; i < sample->read.group.nr; i++) {
+			PyObject *t = get_sample_value_as_tuple(&sample->read.group.values[i]);
+			PyList_SET_ITEM(values, i, t);
+		}
+	} else {
+		PyObject *t = get_sample_value_as_tuple(&sample->read.one);
+		PyList_SET_ITEM(values, 0, t);
+	}
+	pydict_set_item_string_decref(dict_sample, "values", values);
+}
+
+static PyObject *get_perf_sample_dict(struct perf_sample *sample,
+					 struct perf_evsel *evsel,
+					 struct addr_location *al,
+					 PyObject *callchain)
+{
+	PyObject *dict, *dict_sample;
+
+	dict = PyDict_New();
+	if (!dict)
+		Py_FatalError("couldn't create Python dictionary");
+
+	dict_sample = PyDict_New();
+	if (!dict_sample)
+		Py_FatalError("couldn't create Python dictionary");
+
+	pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
+	pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
+			(const char *)&evsel->attr, sizeof(evsel->attr)));
+
+	pydict_set_item_string_decref(dict_sample, "pid",
+			PyInt_FromLong(sample->pid));
+	pydict_set_item_string_decref(dict_sample, "tid",
+			PyInt_FromLong(sample->tid));
+	pydict_set_item_string_decref(dict_sample, "cpu",
+			PyInt_FromLong(sample->cpu));
+	pydict_set_item_string_decref(dict_sample, "ip",
+			PyLong_FromUnsignedLongLong(sample->ip));
+	pydict_set_item_string_decref(dict_sample, "time",
+			PyLong_FromUnsignedLongLong(sample->time));
+	pydict_set_item_string_decref(dict_sample, "period",
+			PyLong_FromUnsignedLongLong(sample->period));
+	set_sample_read_in_dict(dict_sample, sample, evsel);
+	pydict_set_item_string_decref(dict, "sample", dict_sample);
+
+	pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
+			(const char *)sample->raw_data, sample->raw_size));
+	pydict_set_item_string_decref(dict, "comm",
+			PyString_FromString(thread__comm_str(al->thread)));
+	if (al->map) {
+		pydict_set_item_string_decref(dict, "dso",
+			PyString_FromString(al->map->dso->name));
+	}
+	if (al->sym) {
+		pydict_set_item_string_decref(dict, "symbol",
+			PyString_FromString(al->sym->name));
+	}
+
+	pydict_set_item_string_decref(dict, "callchain", callchain);
+
+	return dict;
+}
+
 static void python_process_tracepoint(struct perf_sample *sample,
 				      struct perf_evsel *evsel,
 				      struct addr_location *al)
 {
 	struct event_format *event = evsel->tp_format;
 	PyObject *handler, *context, *t, *obj = NULL, *callchain;
-	PyObject *dict = NULL;
+	PyObject *dict = NULL, *all_entries_dict = NULL;
 	static char handler_name[256];
 	struct format_field *field;
 	unsigned long s, ns;
@@ -407,10 +537,7 @@ static void python_process_tracepoint(struct perf_sample *sample,
 	void *data = sample->raw_data;
 	unsigned long long nsecs = sample->time;
 	const char *comm = thread__comm_str(al->thread);
-
-	t = PyTuple_New(MAX_FIELDS);
-	if (!t)
-		Py_FatalError("couldn't create Python tuple");
+	const char *default_handler_name = "trace_unhandled";
 
 	if (!event) {
 		snprintf(handler_name, sizeof(handler_name),
@@ -427,10 +554,19 @@ static void python_process_tracepoint(struct perf_sample *sample,
 
 	handler = get_handler(handler_name);
 	if (!handler) {
+		handler = get_handler(default_handler_name);
+		if (!handler)
+			return;
 		dict = PyDict_New();
 		if (!dict)
 			Py_FatalError("couldn't create Python dict");
 	}
+
+	t = PyTuple_New(MAX_FIELDS);
+	if (!t)
+		Py_FatalError("couldn't create Python tuple");
+
+
 	s = nsecs / NSEC_PER_SEC;
 	ns = nsecs - s * NSEC_PER_SEC;
 
@@ -444,8 +580,10 @@ static void python_process_tracepoint(struct perf_sample *sample,
 
 	/* ip unwinding */
 	callchain = python_process_callchain(sample, evsel, al);
+	/* Need an additional reference for the perf_sample dict */
+	Py_INCREF(callchain);
 
-	if (handler) {
+	if (!dict) {
 		PyTuple_SetItem(t, n++, PyInt_FromLong(cpu));
 		PyTuple_SetItem(t, n++, PyInt_FromLong(s));
 		PyTuple_SetItem(t, n++, PyInt_FromLong(ns));
@@ -484,26 +622,35 @@ static void python_process_tracepoint(struct perf_sample *sample,
 		} else { /* FIELD_IS_NUMERIC */
 			obj = get_field_numeric_entry(event, field, data);
 		}
-		if (handler)
+		if (!dict)
 			PyTuple_SetItem(t, n++, obj);
 		else
 			pydict_set_item_string_decref(dict, field->name, obj);
 
 	}
 
-	if (!handler)
+	if (dict)
 		PyTuple_SetItem(t, n++, dict);
 
+	if (get_argument_count(handler) == (int) n + 1) {
+		all_entries_dict = get_perf_sample_dict(sample, evsel, al,
+			callchain);
+		PyTuple_SetItem(t, n++,	all_entries_dict);
+	} else {
+		Py_DECREF(callchain);
+	}
+
 	if (_PyTuple_Resize(&t, n) == -1)
 		Py_FatalError("error resizing Python tuple");
 
-	if (handler) {
+	if (!dict) {
 		call_object(handler, t, handler_name);
 	} else {
-		try_call_object("trace_unhandled", t);
+		call_object(handler, t, default_handler_name);
 		Py_DECREF(dict);
 	}
 
+	Py_XDECREF(all_entries_dict);
 	Py_DECREF(t);
 }
 
@@ -795,10 +942,16 @@ static void python_process_general_event(struct perf_sample *sample,
 					 struct perf_evsel *evsel,
 					 struct addr_location *al)
 {
-	PyObject *handler, *t, *dict, *callchain, *dict_sample;
+	PyObject *handler, *t, *dict, *callchain;
 	static char handler_name[64];
 	unsigned n = 0;
 
+	snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
+
+	handler = get_handler(handler_name);
+	if (!handler)
+		return;
+
 	/*
 	 * Use the MAX_FIELDS to make the function expandable, though
 	 * currently there is only one item for the tuple.
@@ -807,61 +960,16 @@ static void python_process_general_event(struct perf_sample *sample,
 	if (!t)
 		Py_FatalError("couldn't create Python tuple");
 
-	dict = PyDict_New();
-	if (!dict)
-		Py_FatalError("couldn't create Python dictionary");
-
-	dict_sample = PyDict_New();
-	if (!dict_sample)
-		Py_FatalError("couldn't create Python dictionary");
-
-	snprintf(handler_name, sizeof(handler_name), "%s", "process_event");
-
-	handler = get_handler(handler_name);
-	if (!handler)
-		goto exit;
-
-	pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
-	pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
-			(const char *)&evsel->attr, sizeof(evsel->attr)));
-
-	pydict_set_item_string_decref(dict_sample, "pid",
-			PyInt_FromLong(sample->pid));
-	pydict_set_item_string_decref(dict_sample, "tid",
-			PyInt_FromLong(sample->tid));
-	pydict_set_item_string_decref(dict_sample, "cpu",
-			PyInt_FromLong(sample->cpu));
-	pydict_set_item_string_decref(dict_sample, "ip",
-			PyLong_FromUnsignedLongLong(sample->ip));
-	pydict_set_item_string_decref(dict_sample, "time",
-			PyLong_FromUnsignedLongLong(sample->time));
-	pydict_set_item_string_decref(dict_sample, "period",
-			PyLong_FromUnsignedLongLong(sample->period));
-	pydict_set_item_string_decref(dict, "sample", dict_sample);
-
-	pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
-			(const char *)sample->raw_data, sample->raw_size));
-	pydict_set_item_string_decref(dict, "comm",
-			PyString_FromString(thread__comm_str(al->thread)));
-	if (al->map) {
-		pydict_set_item_string_decref(dict, "dso",
-			PyString_FromString(al->map->dso->name));
-	}
-	if (al->sym) {
-		pydict_set_item_string_decref(dict, "symbol",
-			PyString_FromString(al->sym->name));
-	}
-
 	/* ip unwinding */
 	callchain = python_process_callchain(sample, evsel, al);
-	pydict_set_item_string_decref(dict, "callchain", callchain);
+	dict = get_perf_sample_dict(sample, evsel, al, callchain);
 
 	PyTuple_SetItem(t, n++, dict);
 	if (_PyTuple_Resize(&t, n) == -1)
 		Py_FatalError("error resizing Python tuple");
 
 	call_object(handler, t, handler_name);
-exit:
+
 	Py_DECREF(dict);
 	Py_DECREF(t);
 }
@@ -1259,6 +1367,12 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
 
 			fprintf(ofp, "%s", f->name);
 		}
+		if (not_first++)
+			fprintf(ofp, ", ");
+		if (++count % 5 == 0)
+			fprintf(ofp, "\n\t\t");
+		fprintf(ofp, "perf_sample_dict");
+
 		fprintf(ofp, "):\n");
 
 		fprintf(ofp, "\t\tprint_header(event_name, common_cpu, "
@@ -1328,6 +1442,9 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
 
 		fprintf(ofp, ")\n\n");
 
+		fprintf(ofp, "\t\tprint 'Sample: {'+"
+			"get_dict_as_string(perf_sample_dict['sample'], ', ')+'}'\n\n");
+
 		fprintf(ofp, "\t\tfor node in common_callchain:");
 		fprintf(ofp, "\n\t\t\tif 'sym' in node:");
 		fprintf(ofp, "\n\t\t\t\tprint \"\\t[%%x] %%s\" %% (node['ip'], node['sym']['name'])");
@@ -1338,15 +1455,20 @@ static int python_generate_script(struct pevent *pevent, const char *outfile)
 	}
 
 	fprintf(ofp, "def trace_unhandled(event_name, context, "
-		"event_fields_dict):\n");
+		"event_fields_dict, perf_sample_dict):\n");
 
-	fprintf(ofp, "\t\tprint ' '.join(['%%s=%%s'%%(k,str(v))"
-		"for k,v in sorted(event_fields_dict.items())])\n\n");
+	fprintf(ofp, "\t\tprint get_dict_as_string(event_fields_dict)\n");
+	fprintf(ofp, "\t\tprint 'Sample: {'+"
+		"get_dict_as_string(perf_sample_dict['sample'], ', ')+'}'\n\n");
 
 	fprintf(ofp, "def print_header("
 		"event_name, cpu, secs, nsecs, pid, comm):\n"
 		"\tprint \"%%-20s %%5u %%05u.%%09u %%8u %%-20s \" %% \\\n\t"
-		"(event_name, cpu, secs, nsecs, pid, comm),\n");
+		"(event_name, cpu, secs, nsecs, pid, comm),\n\n");
+
+	fprintf(ofp, "def get_dict_as_string(a_dict, delimiter=' '):\n"
+		"\treturn delimiter.join"
+		"(['%%s=%%s'%%(k,str(v))for k,v in sorted(a_dict.items())])\n");
 
 	fclose(ofp);
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d19c40a81040..ac863691605f 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -428,6 +428,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
 		tool->stat_round = process_stat_round_stub;
 	if (tool->time_conv == NULL)
 		tool->time_conv = process_event_op2_stub;
+	if (tool->feature == NULL)
+		tool->feature = process_event_op2_stub;
 }
 
 static void swap_sample_id_all(union perf_event *event, void *data)
@@ -1125,6 +1127,30 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
 		sample_read__printf(sample, evsel->attr.read_format);
 }
 
+static void dump_read(struct perf_evsel *evsel, union perf_event *event)
+{
+	struct read_event *read_event = &event->read;
+	u64 read_format;
+
+	if (!dump_trace)
+		return;
+
+	printf(": %d %d %s %" PRIu64 "\n", event->read.pid, event->read.tid,
+	       evsel ? perf_evsel__name(evsel) : "FAIL",
+	       event->read.value);
+
+	read_format = evsel->attr.read_format;
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
+		printf("... time enabled : %" PRIu64 "\n", read_event->time_enabled);
+
+	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
+		printf("... time running : %" PRIu64 "\n", read_event->time_running);
+
+	if (read_format & PERF_FORMAT_ID)
+		printf("... id           : %" PRIu64 "\n", read_event->id);
+}
+
 static struct machine *machines__find_for_cpumode(struct machines *machines,
 					       union perf_event *event,
 					       struct perf_sample *sample)
@@ -1269,6 +1295,7 @@ static int machines__deliver_event(struct machines *machines,
 			evlist->stats.total_lost_samples += event->lost_samples.lost;
 		return tool->lost_samples(tool, event, sample, machine);
 	case PERF_RECORD_READ:
+		dump_read(evsel, event);
 		return tool->read(tool, event, sample, evsel, machine);
 	case PERF_RECORD_THROTTLE:
 		return tool->throttle(tool, event, sample, machine);
@@ -1371,6 +1398,8 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 	case PERF_RECORD_TIME_CONV:
 		session->time_conv = event->time_conv;
 		return tool->time_conv(tool, event, session);
+	case PERF_RECORD_HEADER_FEATURE:
+		return tool->feature(tool, event, session);
 	default:
 		return -EINVAL;
 	}
diff --git a/tools/perf/util/setns.c b/tools/perf/util/setns.c
new file mode 100644
index 000000000000..ce8fc290fce8
--- /dev/null
+++ b/tools/perf/util/setns.c
@@ -0,0 +1,8 @@
+#include "util.h"
+#include <unistd.h>
+#include <sys/syscall.h>
+
+int setns(int fd, int nstype)
+{
+	return syscall(__NR_setns, fd, nstype);
+}
diff --git a/tools/perf/util/smt.c b/tools/perf/util/smt.c
new file mode 100644
index 000000000000..453f6f6f29f3
--- /dev/null
+++ b/tools/perf/util/smt.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <linux/bitops.h>
+#include "api/fs/fs.h"
+#include "smt.h"
+
+int smt_on(void)
+{
+	static bool cached;
+	static int cached_result;
+	int cpu;
+	int ncpu;
+
+	if (cached)
+		return cached_result;
+
+	ncpu = sysconf(_SC_NPROCESSORS_CONF);
+	for (cpu = 0; cpu < ncpu; cpu++) {
+		unsigned long long siblings;
+		char *str;
+		size_t strlen;
+		char fn[256];
+
+		snprintf(fn, sizeof fn,
+			"devices/system/cpu/cpu%d/topology/thread_siblings",
+			cpu);
+		if (sysfs__read_str(fn, &str, &strlen) < 0)
+			continue;
+		/* Entry is hex, but does not have 0x, so need custom parser */
+		siblings = strtoull(str, NULL, 16);
+		free(str);
+		if (hweight64(siblings) > 1) {
+			cached_result = 1;
+			cached = true;
+			break;
+		}
+	}
+	if (!cached) {
+		cached_result = 0;
+		cached = true;
+	}
+	return cached_result;
+}
diff --git a/tools/perf/util/smt.h b/tools/perf/util/smt.h
new file mode 100644
index 000000000000..b8414b7bcbc8
--- /dev/null
+++ b/tools/perf/util/smt.h
@@ -0,0 +1,6 @@
+#ifndef SMT_H
+#define SMT_H 1
+
+int smt_on(void);
+
+#endif
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 8b327c955a4f..12359bd986db 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -2563,7 +2563,7 @@ static const char *get_default_sort_order(struct perf_evlist *evlist)
 
 	BUG_ON(sort__mode >= ARRAY_SIZE(default_sort_orders));
 
-	if (evlist == NULL)
+	if (evlist == NULL || perf_evlist__empty(evlist))
 		goto out_no_evlist;
 
 	evlist__for_each_entry(evlist, evsel) {
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index ebc88a74e67b..ed8e8d2de942 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -155,6 +155,9 @@ static void find_address_in_section(bfd *abfd, asection *section, void *data)
 	a2l->found = bfd_find_nearest_line(abfd, section, a2l->syms, pc - vma,
 					   &a2l->filename, &a2l->funcname,
 					   &a2l->line);
+
+	if (a2l->filename && !strlen(a2l->filename))
+		a2l->filename = NULL;
 }
 
 static struct a2l_data *addr2line_init(const char *path)
@@ -248,6 +251,9 @@ static int addr2line(const char *dso_name, u64 addr,
 					     &a2l->funcname, &a2l->line) &&
 		       cnt++ < MAX_INLINE_NEST) {
 
+			if (a2l->filename && !strlen(a2l->filename))
+				a2l->filename = NULL;
+
 			if (node != NULL) {
 				if (inline_list__append_dso_a2l(dso, node))
 					return 0;
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index 719d6cb86952..a04cf56d3517 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -70,7 +70,11 @@ static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
 		return a->ctx - b->ctx;
 	if (a->cpu != b->cpu)
 		return a->cpu - b->cpu;
-	return a->evsel - b->evsel;
+	if (a->evsel == b->evsel)
+		return 0;
+	if ((char *)a->evsel < (char *)b->evsel)
+		return -1;
+	return +1;
 }
 
 static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 53b9a994a3dc..35e9848734d6 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -128,6 +128,10 @@ static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
 
 static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
 {
+	struct perf_stat_evsel *ps = evsel->priv;
+
+	if (ps)
+		free(ps->group_data);
 	zfree(&evsel->priv);
 }
 
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 7522bf10b03e..eacaf958e19d 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -28,8 +28,9 @@ enum perf_stat_evsel_id {
 };
 
 struct perf_stat_evsel {
-	struct stats		res_stats[3];
-	enum perf_stat_evsel_id	id;
+	struct stats		 res_stats[3];
+	enum perf_stat_evsel_id	 id;
+	u64			*group_data;
 };
 
 enum aggr_mode {
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 502505cf236a..5c39f420111e 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -259,7 +259,7 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 {
 	uint32_t nr_rel_entries, idx;
 	GElf_Sym sym;
-	u64 plt_offset;
+	u64 plt_offset, plt_header_size, plt_entry_size;
 	GElf_Shdr shdr_plt;
 	struct symbol *f;
 	GElf_Shdr shdr_rel_plt, shdr_dynsym;
@@ -326,6 +326,23 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 
 	nr_rel_entries = shdr_rel_plt.sh_size / shdr_rel_plt.sh_entsize;
 	plt_offset = shdr_plt.sh_offset;
+	switch (ehdr.e_machine) {
+		case EM_ARM:
+			plt_header_size = 20;
+			plt_entry_size = 12;
+			break;
+
+		case EM_AARCH64:
+			plt_header_size = 32;
+			plt_entry_size = 16;
+			break;
+
+		default: /* FIXME: s390/alpha/mips/parisc/poperpc/sh/sparc/xtensa need to be checked */
+			plt_header_size = shdr_plt.sh_entsize;
+			plt_entry_size = shdr_plt.sh_entsize;
+			break;
+	}
+	plt_offset += plt_header_size;
 
 	if (shdr_rel_plt.sh_type == SHT_RELA) {
 		GElf_Rela pos_mem, *pos;
@@ -335,7 +352,6 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 			const char *elf_name = NULL;
 			char *demangled = NULL;
 			symidx = GELF_R_SYM(pos->r_info);
-			plt_offset += shdr_plt.sh_entsize;
 			gelf_getsym(syms, symidx, &sym);
 
 			elf_name = elf_sym__name(&sym, symstrs);
@@ -346,11 +362,12 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 				 "%s@plt", elf_name);
 			free(demangled);
 
-			f = symbol__new(plt_offset, shdr_plt.sh_entsize,
+			f = symbol__new(plt_offset, plt_entry_size,
 					STB_GLOBAL, sympltname);
 			if (!f)
 				goto out_elf_end;
 
+			plt_offset += plt_entry_size;
 			symbols__insert(&dso->symbols[map->type], f);
 			++nr;
 		}
@@ -361,7 +378,6 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 			const char *elf_name = NULL;
 			char *demangled = NULL;
 			symidx = GELF_R_SYM(pos->r_info);
-			plt_offset += shdr_plt.sh_entsize;
 			gelf_getsym(syms, symidx, &sym);
 
 			elf_name = elf_sym__name(&sym, symstrs);
@@ -372,11 +388,12 @@ int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss, struct map *
 				 "%s@plt", elf_name);
 			free(demangled);
 
-			f = symbol__new(plt_offset, shdr_plt.sh_entsize,
+			f = symbol__new(plt_offset, plt_entry_size,
 					STB_GLOBAL, sympltname);
 			if (!f)
 				goto out_elf_end;
 
+			plt_offset += plt_entry_size;
 			symbols__insert(&dso->symbols[map->type], f);
 			++nr;
 		}
@@ -391,7 +408,7 @@ out_elf_end:
 	return 0;
 }
 
-char *dso__demangle_sym(struct dso *dso, int kmodule, char *elf_name)
+char *dso__demangle_sym(struct dso *dso, int kmodule, const char *elf_name)
 {
 	return demangle_sym(dso, kmodule, elf_name);
 }
@@ -793,6 +810,12 @@ static u64 ref_reloc(struct kmap *kmap)
 void __weak arch__sym_update(struct symbol *s __maybe_unused,
 		GElf_Sym *sym __maybe_unused) { }
 
+void __weak arch__adjust_sym_map_offset(GElf_Sym *sym, GElf_Shdr *shdr,
+				       struct map *map __maybe_unused)
+{
+	sym->st_value -= shdr->sh_addr - shdr->sh_offset;
+}
+
 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
 		  struct symsrc *runtime_ss, int kmodule)
 {
@@ -973,7 +996,7 @@ int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
 
 			/* Adjust symbol to map to file offset */
 			if (adjust_kernel_syms)
-				sym.st_value -= shdr.sh_addr - shdr.sh_offset;
+				arch__adjust_sym_map_offset(&sym, &shdr, map);
 
 			if (strcmp(section_name,
 				   (curr_dso->short_name +
@@ -1442,7 +1465,7 @@ static int kcore_copy__parse_kallsyms(struct kcore_copy_info *kci,
 
 static int kcore_copy__process_modules(void *arg,
 				       const char *name __maybe_unused,
-				       u64 start)
+				       u64 start, u64 size __maybe_unused)
 {
 	struct kcore_copy_info *kci = arg;
 
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index 40bf5d4c0bfd..1a5aa35b0100 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -377,7 +377,7 @@ void symbol__elf_init(void)
 
 char *dso__demangle_sym(struct dso *dso __maybe_unused,
 			int kmodule __maybe_unused,
-			char *elf_name __maybe_unused)
+			const char *elf_name __maybe_unused)
 {
 	return NULL;
 }
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index e7a98dbd2aed..5909ee4c7ade 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -18,6 +18,7 @@
 #include "symbol.h"
 #include "strlist.h"
 #include "intlist.h"
+#include "namespaces.h"
 #include "header.h"
 #include "path.h"
 #include "sane_ctype.h"
@@ -52,6 +53,7 @@ static enum dso_binary_type binary_type_symtab[] = {
 	DSO_BINARY_TYPE__JAVA_JIT,
 	DSO_BINARY_TYPE__DEBUGLINK,
 	DSO_BINARY_TYPE__BUILD_ID_CACHE,
+	DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO,
 	DSO_BINARY_TYPE__FEDORA_DEBUGINFO,
 	DSO_BINARY_TYPE__UBUNTU_DEBUGINFO,
 	DSO_BINARY_TYPE__BUILDID_DEBUGINFO,
@@ -231,7 +233,8 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
 		goto out_unlock;
 
 	for (next = map__next(curr); next; next = map__next(curr)) {
-		curr->end = next->start;
+		if (!curr->end)
+			curr->end = next->start;
 		curr = next;
 	}
 
@@ -239,7 +242,8 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
 	 * We still haven't the actual symbols, so guess the
 	 * last map final address.
 	 */
-	curr->end = ~0ULL;
+	if (!curr->end)
+		curr->end = ~0ULL;
 
 out_unlock:
 	pthread_rwlock_unlock(&maps->lock);
@@ -550,7 +554,7 @@ void dso__sort_by_name(struct dso *dso, enum map_type type)
 
 int modules__parse(const char *filename, void *arg,
 		   int (*process_module)(void *arg, const char *name,
-					 u64 start))
+					 u64 start, u64 size))
 {
 	char *line = NULL;
 	size_t n;
@@ -563,8 +567,8 @@ int modules__parse(const char *filename, void *arg,
 
 	while (1) {
 		char name[PATH_MAX];
-		u64 start;
-		char *sep;
+		u64 start, size;
+		char *sep, *endptr;
 		ssize_t line_len;
 
 		line_len = getline(&line, &n, file);
@@ -596,7 +600,11 @@ int modules__parse(const char *filename, void *arg,
 
 		scnprintf(name, sizeof(name), "[%s]", line);
 
-		err = process_module(arg, name, start);
+		size = strtoul(sep + 1, &endptr, 0);
+		if (*endptr != ' ' && *endptr != '\t')
+			continue;
+
+		err = process_module(arg, name, start, size);
 		if (err)
 			break;
 	}
@@ -943,7 +951,8 @@ static struct module_info *find_module(const char *name,
 	return NULL;
 }
 
-static int __read_proc_modules(void *arg, const char *name, u64 start)
+static int __read_proc_modules(void *arg, const char *name, u64 start,
+			       u64 size __maybe_unused)
 {
 	struct rb_root *modules = arg;
 	struct module_info *mi;
@@ -1325,14 +1334,15 @@ int dso__load_kallsyms(struct dso *dso, const char *filename,
 	return __dso__load_kallsyms(dso, filename, map, false);
 }
 
-static int dso__load_perf_map(struct dso *dso, struct map *map)
+static int dso__load_perf_map(const char *map_path, struct dso *dso,
+			      struct map *map)
 {
 	char *line = NULL;
 	size_t n;
 	FILE *file;
 	int nr_syms = 0;
 
-	file = fopen(dso->long_name, "r");
+	file = fopen(map_path, "r");
 	if (file == NULL)
 		goto out_failure;
 
@@ -1416,6 +1426,7 @@ static bool dso__is_compatible_symtab_type(struct dso *dso, bool kmod,
 		return kmod && dso->symtab_type == type;
 
 	case DSO_BINARY_TYPE__BUILD_ID_CACHE:
+	case DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO:
 		return true;
 
 	case DSO_BINARY_TYPE__NOT_FOUND:
@@ -1424,6 +1435,44 @@ static bool dso__is_compatible_symtab_type(struct dso *dso, bool kmod,
 	}
 }
 
+/* Checks for the existence of the perf-<pid>.map file in two different
+ * locations.  First, if the process is a separate mount namespace, check in
+ * that namespace using the pid of the innermost pid namespace.  If's not in a
+ * namespace, or the file can't be found there, try in the mount namespace of
+ * the tracing process using our view of its pid.
+ */
+static int dso__find_perf_map(char *filebuf, size_t bufsz,
+			      struct nsinfo **nsip)
+{
+	struct nscookie nsc;
+	struct nsinfo *nsi;
+	struct nsinfo *nnsi;
+	int rc = -1;
+
+	nsi = *nsip;
+
+	if (nsi->need_setns) {
+		snprintf(filebuf, bufsz, "/tmp/perf-%d.map", nsi->nstgid);
+		nsinfo__mountns_enter(nsi, &nsc);
+		rc = access(filebuf, R_OK);
+		nsinfo__mountns_exit(&nsc);
+		if (rc == 0)
+			return rc;
+	}
+
+	nnsi = nsinfo__copy(nsi);
+	if (nnsi) {
+		nsinfo__put(nsi);
+
+		nnsi->need_setns = false;
+		snprintf(filebuf, bufsz, "/tmp/perf-%d.map", nnsi->tgid);
+		*nsip = nnsi;
+		rc = 0;
+	}
+
+	return rc;
+}
+
 int dso__load(struct dso *dso, struct map *map)
 {
 	char *name;
@@ -1435,8 +1484,21 @@ int dso__load(struct dso *dso, struct map *map)
 	struct symsrc ss_[2];
 	struct symsrc *syms_ss = NULL, *runtime_ss = NULL;
 	bool kmod;
+	bool perfmap;
 	unsigned char build_id[BUILD_ID_SIZE];
+	struct nscookie nsc;
+	char newmapname[PATH_MAX];
+	const char *map_path = dso->long_name;
+
+	perfmap = strncmp(dso->name, "/tmp/perf-", 10) == 0;
+	if (perfmap) {
+		if (dso->nsinfo && (dso__find_perf_map(newmapname,
+		    sizeof(newmapname), &dso->nsinfo) == 0)) {
+			map_path = newmapname;
+		}
+	}
 
+	nsinfo__mountns_enter(dso->nsinfo, &nsc);
 	pthread_mutex_lock(&dso->lock);
 
 	/* check again under the dso->lock */
@@ -1461,19 +1523,19 @@ int dso__load(struct dso *dso, struct map *map)
 
 	dso->adjust_symbols = 0;
 
-	if (strncmp(dso->name, "/tmp/perf-", 10) == 0) {
+	if (perfmap) {
 		struct stat st;
 
-		if (lstat(dso->name, &st) < 0)
+		if (lstat(map_path, &st) < 0)
 			goto out;
 
 		if (!symbol_conf.force && st.st_uid && (st.st_uid != geteuid())) {
 			pr_warning("File %s not owned by current user or root, "
-				   "ignoring it (use -f to override).\n", dso->name);
+				   "ignoring it (use -f to override).\n", map_path);
 			goto out;
 		}
 
-		ret = dso__load_perf_map(dso, map);
+		ret = dso__load_perf_map(map_path, dso, map);
 		dso->symtab_type = ret > 0 ? DSO_BINARY_TYPE__JAVA_JIT :
 					     DSO_BINARY_TYPE__NOT_FOUND;
 		goto out;
@@ -1511,9 +1573,15 @@ int dso__load(struct dso *dso, struct map *map)
 	for (i = 0; i < DSO_BINARY_TYPE__SYMTAB_CNT; i++) {
 		struct symsrc *ss = &ss_[ss_pos];
 		bool next_slot = false;
+		bool is_reg;
+		bool nsexit;
+		int sirc;
 
 		enum dso_binary_type symtab_type = binary_type_symtab[i];
 
+		nsexit = (symtab_type == DSO_BINARY_TYPE__BUILD_ID_CACHE ||
+		    symtab_type == DSO_BINARY_TYPE__BUILD_ID_CACHE_DEBUGINFO);
+
 		if (!dso__is_compatible_symtab_type(dso, kmod, symtab_type))
 			continue;
 
@@ -1521,12 +1589,20 @@ int dso__load(struct dso *dso, struct map *map)
 						   root_dir, name, PATH_MAX))
 			continue;
 
-		if (!is_regular_file(name))
-			continue;
+		if (nsexit)
+			nsinfo__mountns_exit(&nsc);
+
+		is_reg = is_regular_file(name);
+		sirc = symsrc__init(ss, dso, name, symtab_type);
 
-		/* Name is now the name of the next image to try */
-		if (symsrc__init(ss, dso, name, symtab_type) < 0)
+		if (nsexit)
+			nsinfo__mountns_enter(dso->nsinfo, &nsc);
+
+		if (!is_reg || sirc < 0) {
+			if (sirc >= 0)
+				symsrc__destroy(ss);
 			continue;
+		}
 
 		if (!syms_ss && symsrc__has_symtab(ss)) {
 			syms_ss = ss;
@@ -1584,6 +1660,7 @@ out_free:
 out:
 	dso__set_loaded(dso, map->type);
 	pthread_mutex_unlock(&dso->lock);
+	nsinfo__mountns_exit(&nsc);
 
 	return ret;
 }
@@ -1660,7 +1737,7 @@ int dso__load_vmlinux_path(struct dso *dso, struct map *map)
 	}
 
 	if (!symbol_conf.ignore_vmlinux_buildid)
-		filename = dso__build_id_filename(dso, NULL, 0);
+		filename = dso__build_id_filename(dso, NULL, 0, false);
 	if (filename != NULL) {
 		err = dso__load_vmlinux(dso, map, filename, true);
 		if (err > 0)
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 41ebba9a2eb2..d00a012cfdfb 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -273,7 +273,7 @@ int filename__read_build_id(const char *filename, void *bf, size_t size);
 int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 int modules__parse(const char *filename, void *arg,
 		   int (*process_module)(void *arg, const char *name,
-					 u64 start));
+					 u64 start, u64 size));
 int filename__read_debuglink(const char *filename, char *debuglink,
 			     size_t size);
 
@@ -306,7 +306,7 @@ int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
 int dso__synthesize_plt_symbols(struct dso *dso, struct symsrc *ss,
 				struct map *map);
 
-char *dso__demangle_sym(struct dso *dso, int kmodule, char *elf_name);
+char *dso__demangle_sym(struct dso *dso, int kmodule, const char *elf_name);
 
 void __symbols__insert(struct rb_root *symbols, struct symbol *sym, bool kernel);
 void symbols__insert(struct rb_root *symbols, struct symbol *sym);
@@ -343,6 +343,9 @@ int setup_intlist(struct intlist **list, const char *list_str,
 #ifdef HAVE_LIBELF_SUPPORT
 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
 void arch__sym_update(struct symbol *s, GElf_Sym *sym);
+void arch__adjust_sym_map_offset(GElf_Sym *sym,
+				 GElf_Shdr *shdr __maybe_unused,
+				 struct map *map __maybe_unused);
 #endif
 
 #define SYMBOL_A 0
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 378c418ca0c1..aee9a42102ba 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -59,6 +59,8 @@ struct thread *thread__new(pid_t pid, pid_t tid)
 		list_add(&comm->list, &thread->comm_list);
 		refcount_set(&thread->refcnt, 1);
 		RB_CLEAR_NODE(&thread->rb_node);
+		/* Thread holds first ref to nsdata. */
+		thread->nsinfo = nsinfo__new(pid);
 	}
 
 	return thread;
@@ -91,6 +93,7 @@ void thread__delete(struct thread *thread)
 		comm__free(comm);
 	}
 	unwind__finish_access(thread);
+	nsinfo__zput(thread->nsinfo);
 
 	free(thread);
 }
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 4eb849e9098f..cb1a5dd5c2b9 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -34,6 +34,7 @@ struct thread {
 
 	void			*priv;
 	struct thread_stack	*ts;
+	struct nsinfo		*nsinfo;
 #ifdef HAVE_LIBUNWIND_SUPPORT
 	void				*addr_space;
 	struct unwind_libunwind_ops	*unwind_libunwind_ops;
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index 829471a1c6d7..d549e50db397 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -34,6 +34,12 @@ typedef int (*event_oe)(struct perf_tool *tool, union perf_event *event,
 typedef s64 (*event_op3)(struct perf_tool *tool, union perf_event *event,
 			 struct perf_session *session);
 
+enum show_feature_header {
+	SHOW_FEAT_NO_HEADER = 0,
+	SHOW_FEAT_HEADER,
+	SHOW_FEAT_HEADER_FULL_INFO,
+};
+
 struct perf_tool {
 	event_sample	sample,
 			read;
@@ -63,11 +69,13 @@ struct perf_tool {
 			cpu_map,
 			stat_config,
 			stat,
-			stat_round;
+			stat_round,
+			feature;
 	event_op3	auxtrace;
 	bool		ordered_events;
 	bool		ordering_requires_timestamps;
 	bool		namespace_events;
+	enum show_feature_header show_feat_hdr;
 };
 
 #endif /* __PERF_TOOL_H */
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 988111e0bab5..4c360daa4e24 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -143,13 +143,17 @@ out:
 	return list;
 }
 
-static int slow_copyfile(const char *from, const char *to)
+static int slow_copyfile(const char *from, const char *to, struct nsinfo *nsi)
 {
 	int err = -1;
 	char *line = NULL;
 	size_t n;
-	FILE *from_fp = fopen(from, "r"), *to_fp;
+	FILE *from_fp, *to_fp;
+	struct nscookie nsc;
 
+	nsinfo__mountns_enter(nsi, &nsc);
+	from_fp = fopen(from, "r");
+	nsinfo__mountns_exit(&nsc);
 	if (from_fp == NULL)
 		goto out;
 
@@ -198,15 +202,21 @@ int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size)
 	return size ? -1 : 0;
 }
 
-int copyfile_mode(const char *from, const char *to, mode_t mode)
+static int copyfile_mode_ns(const char *from, const char *to, mode_t mode,
+			    struct nsinfo *nsi)
 {
 	int fromfd, tofd;
 	struct stat st;
-	int err = -1;
+	int err;
 	char *tmp = NULL, *ptr = NULL;
+	struct nscookie nsc;
 
-	if (stat(from, &st))
+	nsinfo__mountns_enter(nsi, &nsc);
+	err = stat(from, &st);
+	nsinfo__mountns_exit(&nsc);
+	if (err)
 		goto out;
+	err = -1;
 
 	/* extra 'x' at the end is to reserve space for '.' */
 	if (asprintf(&tmp, "%s.XXXXXXx", to) < 0) {
@@ -227,11 +237,13 @@ int copyfile_mode(const char *from, const char *to, mode_t mode)
 		goto out_close_to;
 
 	if (st.st_size == 0) { /* /proc? do it slowly... */
-		err = slow_copyfile(from, tmp);
+		err = slow_copyfile(from, tmp, nsi);
 		goto out_close_to;
 	}
 
+	nsinfo__mountns_enter(nsi, &nsc);
 	fromfd = open(from, O_RDONLY);
+	nsinfo__mountns_exit(&nsc);
 	if (fromfd < 0)
 		goto out_close_to;
 
@@ -248,6 +260,16 @@ out:
 	return err;
 }
 
+int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi)
+{
+	return copyfile_mode_ns(from, to, 0755, nsi);
+}
+
+int copyfile_mode(const char *from, const char *to, mode_t mode)
+{
+	return copyfile_mode_ns(from, to, mode, NULL);
+}
+
 int copyfile(const char *from, const char *to)
 {
 	return copyfile_mode(from, to, 0755);
@@ -259,6 +281,7 @@ static ssize_t ion(bool is_read, int fd, void *buf, size_t n)
 	size_t left = n;
 
 	while (left) {
+		/* buf must be treated as const if !is_read. */
 		ssize_t ret = is_read ? read(fd, buf, left) :
 					write(fd, buf, left);
 
@@ -286,9 +309,10 @@ ssize_t readn(int fd, void *buf, size_t n)
 /*
  * Write exactly 'n' bytes or return an error.
  */
-ssize_t writen(int fd, void *buf, size_t n)
+ssize_t writen(int fd, const void *buf, size_t n)
 {
-	return ion(false, fd, buf, n);
+	/* ion does not modify buf. */
+	return ion(false, fd, (void *)buf, n);
 }
 
 size_t hex_width(u64 v)
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 2c9e58a45310..b136c271125f 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -12,6 +12,7 @@
 #include <stdarg.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
+#include "namespaces.h"
 
 /* General helper functions */
 void usage(const char *err) __noreturn;
@@ -33,10 +34,11 @@ struct strlist *lsdir(const char *name, bool (*filter)(const char *, struct dire
 bool lsdir_no_dot_filter(const char *name, struct dirent *d);
 int copyfile(const char *from, const char *to);
 int copyfile_mode(const char *from, const char *to, mode_t mode);
+int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi);
 int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
 
 ssize_t readn(int fd, void *buf, size_t n);
-ssize_t writen(int fd, void *buf, size_t n);
+ssize_t writen(int fd, const void *buf, size_t n);
 
 size_t hex_width(u64 v);
 int hex2u64(const char *ptr, u64 *val);
@@ -58,4 +60,8 @@ const char *perf_tip(const char *dirpath);
 int sched_getcpu(void);
 #endif
 
+#ifndef HAVE_SETNS_SUPPORT
+int setns(int fd, int nstype);
+#endif
+
 #endif /* GIT_COMPAT_UTIL_H */
diff --git a/tools/perf/util/values.c b/tools/perf/util/values.c
index 5de2e15e2eda..8a32bb0095e5 100644
--- a/tools/perf/util/values.c
+++ b/tools/perf/util/values.c
@@ -12,7 +12,7 @@ int perf_read_values_init(struct perf_read_values *values)
 	values->threads_max = 16;
 	values->pid = malloc(values->threads_max * sizeof(*values->pid));
 	values->tid = malloc(values->threads_max * sizeof(*values->tid));
-	values->value = malloc(values->threads_max * sizeof(*values->value));
+	values->value = zalloc(values->threads_max * sizeof(*values->value));
 	if (!values->pid || !values->tid || !values->value) {
 		pr_debug("failed to allocate read_values threads arrays");
 		goto out_free_pid;
@@ -98,15 +98,16 @@ static int perf_read_values__findnew_thread(struct perf_read_values *values,
 			return i;
 	}
 
-	i = values->threads + 1;
-	values->value[i] = malloc(values->counters_max * sizeof(**values->value));
+	i = values->threads;
+
+	values->value[i] = zalloc(values->counters_max * sizeof(**values->value));
 	if (!values->value[i]) {
 		pr_debug("failed to allocate read_values counters array");
 		return -ENOMEM;
 	}
 	values->pid[i] = pid;
 	values->tid[i] = tid;
-	values->threads = i;
+	values->threads = i + 1;
 
 	return i;
 }
@@ -130,12 +131,16 @@ static int perf_read_values__enlarge_counters(struct perf_read_values *values)
 
 	for (i = 0; i < values->threads; i++) {
 		u64 *value = realloc(values->value[i], counters_max * sizeof(**values->value));
+		int j;
 
-		if (value) {
+		if (!value) {
 			pr_debug("failed to enlarge read_values ->values array");
 			goto out_free_name;
 		}
 
+		for (j = values->counters_max; j < counters_max; j++)
+			value[j] = 0;
+
 		values->value[i] = value;
 	}
 
@@ -187,7 +192,7 @@ int perf_read_values_add_value(struct perf_read_values *values,
 	if (cindex < 0)
 		return cindex;
 
-	values->value[tindex][cindex] = value;
+	values->value[tindex][cindex] += value;
 	return 0;
 }
 
diff --git a/tools/perf/util/xyarray.c b/tools/perf/util/xyarray.c
index 7251fdbabced..c8f415d9877b 100644
--- a/tools/perf/util/xyarray.c
+++ b/tools/perf/util/xyarray.c
@@ -12,6 +12,8 @@ struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size)
 		xy->entry_size = entry_size;
 		xy->row_size   = row_size;
 		xy->entries    = xlen * ylen;
+		xy->max_x      = xlen;
+		xy->max_y      = ylen;
 	}
 
 	return xy;
diff --git a/tools/perf/util/xyarray.h b/tools/perf/util/xyarray.h
index 7f30af371b7e..4ba726c90870 100644
--- a/tools/perf/util/xyarray.h
+++ b/tools/perf/util/xyarray.h
@@ -7,6 +7,8 @@ struct xyarray {
 	size_t row_size;
 	size_t entry_size;
 	size_t entries;
+	size_t max_x;
+	size_t max_y;
 	char contents[];
 };
 
@@ -19,4 +21,14 @@ static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
 	return &xy->contents[x * xy->row_size + y * xy->entry_size];
 }
 
+static inline int xyarray__max_y(struct xyarray *xy)
+{
+	return xy->max_x;
+}
+
+static inline int xyarray__max_x(struct xyarray *xy)
+{
+	return xy->max_y;
+}
+
 #endif /* _PERF_XYARRAY_H_ */