Merge remote-tracking branch 'torvalds/master' into perf/core

To pick up fixes, since perf/urgent is already upstream.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

19 files changed, 53 insertions, 24 deletions

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index a62d09808fef..8dc7cef684dc 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -90,7 +90,6 @@ endif
 ifeq ($(ARCH),mips)
   NO_PERF_REGS := 0
   CFLAGS += -I$(OUTPUT)arch/mips/include/generated
-  CFLAGS += -I../../arch/mips/include/uapi -I../../arch/mips/include/generated/uapi
   LIBUNWIND_LIBS = -lunwind -lunwind-mips
 endif
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index bc3dd379eb67..71efe6573ee7 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -2733,6 +2733,12 @@ int cmd_record(int argc, const char **argv)
 		rec->no_buildid = true;
 	}
 
+	if (rec->opts.record_cgroup && !perf_can_record_cgroup()) {
+		pr_err("Kernel has no cgroup sampling support.\n");
+		err = -EINVAL;
+		goto out_opts;
+	}
+
 	if (rec->opts.kcore)
 		rec->data.is_dir = true;
 
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index dd8ff287e930..c783558332b8 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -39,6 +39,7 @@ arch/x86/lib/x86-opcode-map.txt
 arch/x86/tools/gen-insn-attr-x86.awk
 arch/arm/include/uapi/asm/perf_regs.h
 arch/arm64/include/uapi/asm/perf_regs.h
+arch/mips/include/uapi/asm/perf_regs.h
 arch/powerpc/include/uapi/asm/perf_regs.h
 arch/s390/include/uapi/asm/perf_regs.h
 arch/x86/include/uapi/asm/perf_regs.h
diff --git a/tools/perf/tests/attr/base-record b/tools/perf/tests/attr/base-record
index 4a7b8deef3fd..8c10955eff93 100644
--- a/tools/perf/tests/attr/base-record
+++ b/tools/perf/tests/attr/base-record
@@ -16,7 +16,7 @@ pinned=0
 exclusive=0
 exclude_user=0
 exclude_kernel=0|1
-exclude_hv=0
+exclude_hv=0|1
 exclude_idle=0
 mmap=1
 comm=1
diff --git a/tools/perf/tests/shell/stat_bpf_counters.sh b/tools/perf/tests/shell/stat_bpf_counters.sh
index 6b156dd85469..2aed20dc2262 100755
--- a/tools/perf/tests/shell/stat_bpf_counters.sh
+++ b/tools/perf/tests/shell/stat_bpf_counters.sh
@@ -11,9 +11,9 @@ compare_number()
        second_num=$2
 
        # upper bound is first_num * 110%
-       upper=$(( $first_num + $first_num / 10 ))
+       upper=$(expr $first_num + $first_num / 10 )
        # lower bound is first_num * 90%
-       lower=$(( $first_num - $first_num / 10 ))
+       lower=$(expr $first_num - $first_num / 10 )
 
        if [ $second_num -gt $upper ] || [ $second_num -lt $lower ]; then
                echo "The difference between $first_num and $second_num are greater than 10%."
diff --git a/tools/perf/trace/beauty/include/linux/socket.h b/tools/perf/trace/beauty/include/linux/socket.h
index b8fc5c53ba6f..0d8e3dcb7f88 100644
--- a/tools/perf/trace/beauty/include/linux/socket.h
+++ b/tools/perf/trace/beauty/include/linux/socket.h
@@ -438,6 +438,4 @@ extern int __sys_socketpair(int family, int type, int protocol,
 			    int __user *usockvec);
 extern int __sys_shutdown_sock(struct socket *sock, int how);
 extern int __sys_shutdown(int fd, int how);
-
-extern struct ns_common *get_net_ns(struct ns_common *ns);
 #endif /* _LINUX_SOCKET_H */
diff --git a/tools/perf/util/bpf_counter.c b/tools/perf/util/bpf_counter.c
index 974f10e356f0..5ed674a2f55e 100644
--- a/tools/perf/util/bpf_counter.c
+++ b/tools/perf/util/bpf_counter.c
@@ -521,9 +521,10 @@ static int bperf__load(struct evsel *evsel, struct target *target)
 
 	evsel->bperf_leader_link_fd = bpf_link_get_fd_by_id(entry.link_id);
 	if (evsel->bperf_leader_link_fd < 0 &&
-	    bperf_reload_leader_program(evsel, attr_map_fd, &entry))
+	    bperf_reload_leader_program(evsel, attr_map_fd, &entry)) {
+		err = -1;
 		goto out;
-
+	}
 	/*
 	 * The bpf_link holds reference to the leader program, and the
 	 * leader program holds reference to the maps. Therefore, if
@@ -550,6 +551,7 @@ static int bperf__load(struct evsel *evsel, struct target *target)
 	/* Step 2: load the follower skeleton */
 	evsel->follower_skel = bperf_follower_bpf__open();
 	if (!evsel->follower_skel) {
+		err = -1;
 		pr_err("Failed to open follower skeleton\n");
 		goto out;
 	}
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index b2f4920e19a6..7d2ba8419b0c 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -975,9 +975,13 @@ static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data)
 	if ((tag == DW_TAG_formal_parameter ||
 	     tag == DW_TAG_variable) &&
 	    die_compare_name(die_mem, fvp->name) &&
-	/* Does the DIE have location information or external instance? */
+	/*
+	 * Does the DIE have location information or const value
+	 * or external instance?
+	 */
 	    (dwarf_attr(die_mem, DW_AT_external, &attr) ||
-	     dwarf_attr(die_mem, DW_AT_location, &attr)))
+	     dwarf_attr(die_mem, DW_AT_location, &attr) ||
+	     dwarf_attr(die_mem, DW_AT_const_value, &attr)))
 		return DIE_FIND_CB_END;
 	if (dwarf_haspc(die_mem, fvp->addr))
 		return DIE_FIND_CB_CONTINUE;
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 1bea5b29b12d..ebc5e9ad35db 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -144,6 +144,7 @@ static void perf_env__purge_bpf(struct perf_env *env)
 		node = rb_entry(next, struct bpf_prog_info_node, rb_node);
 		next = rb_next(&node->rb_node);
 		rb_erase(&node->rb_node, root);
+		free(node->info_linear);
 		free(node);
 	}
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index f81ac6962aec..b1c930eca40f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -428,6 +428,7 @@ struct evsel *evsel__clone(struct evsel *orig)
 	evsel->auto_merge_stats = orig->auto_merge_stats;
 	evsel->collect_stat = orig->collect_stat;
 	evsel->weak_group = orig->weak_group;
+	evsel->use_config_name = orig->use_config_name;
 
 	if (evsel__copy_config_terms(evsel, orig) < 0)
 		goto out_err;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 75cf5dbfe208..bdad52a06438 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -83,8 +83,10 @@ struct evsel {
 		bool			collect_stat;
 		bool			weak_group;
 		bool			bpf_counter;
+		bool			use_config_name;
 		int			bpf_fd;
 		struct bpf_object	*bpf_obj;
+		struct list_head	config_terms;
 	};
 
 	/*
@@ -116,10 +118,8 @@ struct evsel {
 	bool			merged_stat;
 	bool			reset_group;
 	bool			errored;
-	bool			use_config_name;
 	struct hashmap		*per_pkg_mask;
 	struct evsel		*leader;
-	struct list_head	config_terms;
 	int			err;
 	int			cpu_iter;
 	struct {
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 3ff4936a15a4..da19be7da284 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -776,10 +776,10 @@ static int machine__process_ksymbol_register(struct machine *machine,
 		if (dso) {
 			dso->kernel = DSO_SPACE__KERNEL;
 			map = map__new2(0, dso);
+			dso__put(dso);
 		}
 
 		if (!dso || !map) {
-			dso__put(dso);
 			return -ENOMEM;
 		}
 
@@ -792,6 +792,7 @@ static int machine__process_ksymbol_register(struct machine *machine,
 		map->start = event->ksymbol.addr;
 		map->end = map->start + event->ksymbol.len;
 		maps__insert(&machine->kmaps, map);
+		map__put(map);
 		dso__set_loaded(dso);
 
 		if (is_bpf_image(event->ksymbol.name)) {
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index 8336dd8e8098..d3cf2dee36c8 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -162,10 +162,10 @@ static bool contains_event(struct evsel **metric_events, int num_events,
 	return false;
 }
 
-static bool evsel_same_pmu(struct evsel *ev1, struct evsel *ev2)
+static bool evsel_same_pmu_or_none(struct evsel *ev1, struct evsel *ev2)
 {
 	if (!ev1->pmu_name || !ev2->pmu_name)
-		return false;
+		return true;
 
 	return !strcmp(ev1->pmu_name, ev2->pmu_name);
 }
@@ -288,7 +288,7 @@ static struct evsel *find_evsel_group(struct evlist *perf_evlist,
 			 */
 			if (!has_constraint &&
 			    ev->leader != metric_events[i]->leader &&
-			    evsel_same_pmu(ev->leader, metric_events[i]->leader))
+			    evsel_same_pmu_or_none(ev->leader, metric_events[i]->leader))
 				break;
 			if (!strcmp(metric_events[i]->name, ev->name)) {
 				set_bit(ev->idx, evlist_used);
@@ -1073,16 +1073,18 @@ static int metricgroup__add_metric_sys_event_iter(struct pmu_event *pe,
 
 	ret = add_metric(d->metric_list, pe, d->metric_no_group, &m, NULL, d->ids);
 	if (ret)
-		return ret;
+		goto out;
 
 	ret = resolve_metric(d->metric_no_group,
 				     d->metric_list, NULL, d->ids);
 	if (ret)
-		return ret;
+		goto out;
 
 	*(d->has_match) = true;
 
-	return *d->ret;
+out:
+	*(d->ret) = ret;
+	return ret;
 }
 
 static int metricgroup__add_metric(const char *metric, bool metric_no_group,
diff --git a/tools/perf/util/perf_api_probe.c b/tools/perf/util/perf_api_probe.c
index 829af17a0867..020411682a3c 100644
--- a/tools/perf/util/perf_api_probe.c
+++ b/tools/perf/util/perf_api_probe.c
@@ -103,6 +103,11 @@ static void perf_probe_build_id(struct evsel *evsel)
 	evsel->core.attr.build_id = 1;
 }
 
+static void perf_probe_cgroup(struct evsel *evsel)
+{
+	evsel->core.attr.cgroup = 1;
+}
+
 bool perf_can_sample_identifier(void)
 {
 	return perf_probe_api(perf_probe_sample_identifier);
@@ -182,3 +187,8 @@ bool perf_can_record_build_id(void)
 {
 	return perf_probe_api(perf_probe_build_id);
 }
+
+bool perf_can_record_cgroup(void)
+{
+	return perf_probe_api(perf_probe_cgroup);
+}
diff --git a/tools/perf/util/perf_api_probe.h b/tools/perf/util/perf_api_probe.h
index f12ca55f509a..b104168efb15 100644
--- a/tools/perf/util/perf_api_probe.h
+++ b/tools/perf/util/perf_api_probe.h
@@ -12,5 +12,6 @@ bool perf_can_record_switch_events(void);
 bool perf_can_record_text_poke_events(void);
 bool perf_can_sample_identifier(void);
 bool perf_can_record_build_id(void);
+bool perf_can_record_cgroup(void);
 
 #endif // __PERF_API_PROBE_H
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 866f2d514d72..b029c29ce227 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -190,6 +190,9 @@ static int convert_variable_location(Dwarf_Die *vr_die, Dwarf_Addr addr,
 	    immediate_value_is_supported()) {
 		Dwarf_Sword snum;
 
+		if (!tvar)
+			return 0;
+
 		dwarf_formsdata(&attr, &snum);
 		ret = asprintf(&tvar->value, "\\%ld", (long)snum);
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 0dbb4f2628f3..86145dd699ca 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1723,6 +1723,7 @@ int perf_session__peek_event(struct perf_session *session, off_t file_offset,
 	if (event->header.size < hdr_sz || event->header.size > buf_sz)
 		return -1;
 
+	buf += hdr_sz;
 	rest = event->header.size - hdr_sz;
 
 	if (readn(fd, buf, rest) != (ssize_t)rest)
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index b759dfd633b4..c588a6b7a8db 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -541,7 +541,7 @@ static void uniquify_event_name(struct evsel *counter)
 	char *config;
 	int ret = 0;
 
-	if (counter->uniquified_name ||
+	if (counter->uniquified_name || counter->use_config_name ||
 	    !counter->pmu_name || !strncmp(counter->name, counter->pmu_name,
 					   strlen(counter->pmu_name)))
 		return;
@@ -555,10 +555,8 @@ static void uniquify_event_name(struct evsel *counter)
 		}
 	} else {
 		if (perf_pmu__has_hybrid()) {
-			if (!counter->use_config_name) {
-				ret = asprintf(&new_name, "%s/%s/",
-					       counter->pmu_name, counter->name);
-			}
+			ret = asprintf(&new_name, "%s/%s/",
+				       counter->pmu_name, counter->name);
 		} else {
 			ret = asprintf(&new_name, "%s [%s]",
 				       counter->name, counter->pmu_name);
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 4c56aa837434..a73345730ba9 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -2412,6 +2412,7 @@ int cleanup_sdt_note_list(struct list_head *sdt_notes)
 
 	list_for_each_entry_safe(pos, tmp, sdt_notes, note_list) {
 		list_del_init(&pos->note_list);
+		zfree(&pos->args);
 		zfree(&pos->name);
 		zfree(&pos->provider);
 		free(pos);