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

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

 * Remove die()/exit() calls from several tools.

 * Add missing perf_regs.h file to MANIFEST

 * Clean up and improve 'perf sched' performance by elliminating lots of
   needless calls to libtraceevent.

 * More patches to make perf build on Android, from Irina Tirdea

 * Resolve vdso callchains, from Jiri Olsa

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

92 files changed, 1518 insertions, 1231 deletions

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index f4190b5764d..2c54cdd8ae1 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -1824,7 +1824,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
 }
 
 static enum event_type
-process_entry(struct event_format *event __unused, struct print_arg *arg,
+process_entry(struct event_format *event __maybe_unused, struct print_arg *arg,
 	      char **tok)
 {
 	enum event_type type;
@@ -2458,7 +2458,8 @@ process_paren(struct event_format *event, struct print_arg *arg, char **tok)
 
 
 static enum event_type
-process_str(struct event_format *event __unused, struct print_arg *arg, char **tok)
+process_str(struct event_format *event __maybe_unused, struct print_arg *arg,
+	    char **tok)
 {
 	enum event_type type;
 	char *token;
@@ -3653,7 +3654,8 @@ static void free_args(struct print_arg *args)
 }
 
 static char *
-get_bprint_format(void *data, int size __unused, struct event_format *event)
+get_bprint_format(void *data, int size __maybe_unused,
+		  struct event_format *event)
 {
 	struct pevent *pevent = event->pevent;
 	unsigned long long addr;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 3318963f1c9..a4bbe243792 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -24,8 +24,8 @@
 #include <stdarg.h>
 #include <regex.h>
 
-#ifndef __unused
-#define __unused __attribute__ ((unused))
+#ifndef __maybe_unused
+#define __maybe_unused __attribute__((unused))
 #endif
 
 /* ----------------------- trace_seq ----------------------- */
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index b4b572e8c10..05180799093 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -10,6 +10,7 @@ include/linux/stringify.h
 lib/rbtree.c
 include/linux/swab.h
 arch/*/include/asm/unistd*.h
+arch/*/include/asm/perf_regs.h
 arch/*/lib/memcpy*.S
 arch/*/lib/memset*.S
 include/linux/poison.h
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index e4b2e8f2606..209774bcee2 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -264,6 +264,7 @@ LIB_H += util/include/linux/ctype.h
 LIB_H += util/include/linux/kernel.h
 LIB_H += util/include/linux/list.h
 LIB_H += util/include/linux/export.h
+LIB_H += util/include/linux/magic.h
 LIB_H += util/include/linux/poison.h
 LIB_H += util/include/linux/prefetch.h
 LIB_H += util/include/linux/rbtree.h
@@ -336,6 +337,7 @@ LIB_H += util/intlist.h
 LIB_H += util/perf_regs.h
 LIB_H += util/unwind.h
 LIB_H += ui/helpline.h
+LIB_H += util/vdso.h
 
 LIB_OBJS += $(OUTPUT)util/abspath.o
 LIB_OBJS += $(OUTPUT)util/alias.o
@@ -403,6 +405,7 @@ LIB_OBJS += $(OUTPUT)util/cgroup.o
 LIB_OBJS += $(OUTPUT)util/target.o
 LIB_OBJS += $(OUTPUT)util/rblist.o
 LIB_OBJS += $(OUTPUT)util/intlist.o
+LIB_OBJS += $(OUTPUT)util/vdso.o
 
 LIB_OBJS += $(OUTPUT)ui/helpline.o
 LIB_OBJS += $(OUTPUT)ui/hist.o
diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h
index a09bece6dad..8f89998eeaf 100644
--- a/tools/perf/bench/bench.h
+++ b/tools/perf/bench/bench.h
@@ -3,7 +3,8 @@
 
 extern int bench_sched_messaging(int argc, const char **argv, const char *prefix);
 extern int bench_sched_pipe(int argc, const char **argv, const char *prefix);
-extern int bench_mem_memcpy(int argc, const char **argv, const char *prefix __used);
+extern int bench_mem_memcpy(int argc, const char **argv,
+			    const char *prefix __maybe_unused);
 extern int bench_mem_memset(int argc, const char **argv, const char *prefix);
 
 #define BENCH_FORMAT_DEFAULT_STR	"default"
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 02dad5d3359..93c83e3cb4a 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -177,7 +177,7 @@ static double do_memcpy_gettimeofday(memcpy_t fn, size_t len, bool prefault)
 	} while (0)
 
 int bench_mem_memcpy(int argc, const char **argv,
-		     const char *prefix __used)
+		     const char *prefix __maybe_unused)
 {
 	int i;
 	size_t len;
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c
index 350cc955726..c6e4bc52349 100644
--- a/tools/perf/bench/mem-memset.c
+++ b/tools/perf/bench/mem-memset.c
@@ -171,7 +171,7 @@ static double do_memset_gettimeofday(memset_t fn, size_t len, bool prefault)
 	} while (0)
 
 int bench_mem_memset(int argc, const char **argv,
-		     const char *prefix __used)
+		     const char *prefix __maybe_unused)
 {
 	int i;
 	size_t len;
diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
index d1d1b30f99c..cc1190a0849 100644
--- a/tools/perf/bench/sched-messaging.c
+++ b/tools/perf/bench/sched-messaging.c
@@ -267,7 +267,7 @@ static const char * const bench_sched_message_usage[] = {
 };
 
 int bench_sched_messaging(int argc, const char **argv,
-		    const char *prefix __used)
+		    const char *prefix __maybe_unused)
 {
 	unsigned int i, total_children;
 	struct timeval start, stop, diff;
diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index 15911e9c587..69cfba8d4c6 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -43,7 +43,7 @@ static const char * const bench_sched_pipe_usage[] = {
 };
 
 int bench_sched_pipe(int argc, const char **argv,
-		     const char *prefix __used)
+		     const char *prefix __maybe_unused)
 {
 	int pipe_1[2], pipe_2[2];
 	int m = 0, i;
@@ -55,8 +55,8 @@ int bench_sched_pipe(int argc, const char **argv,
 	 * discarding returned value of read(), write()
 	 * causes error in building environment for perf
 	 */
-	int __used ret, wait_stat;
-	pid_t pid, retpid __used;
+	int __maybe_unused ret, wait_stat;
+	pid_t pid, retpid __maybe_unused;
 
 	argc = parse_options(argc, argv, options,
 			     bench_sched_pipe_usage, 0);
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 2f3f0029c0f..9ea38540b87 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -239,7 +239,7 @@ static const char * const annotate_usage[] = {
 	NULL
 };
 
-int cmd_annotate(int argc, const char **argv, const char *prefix __used)
+int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	struct perf_annotate annotate = {
 		.tool = {
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index 1f310021644..cae9a5fd2ec 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -173,7 +173,7 @@ static void all_subsystem(void)
 		all_suite(&subsystems[i]);
 }
 
-int cmd_bench(int argc, const char **argv, const char *prefix __used)
+int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	int i, j, status = 0;
 
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 29ad20e6791..83654557e10 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -43,15 +43,16 @@ static int build_id_cache__add_file(const char *filename, const char *debugdir)
 	}
 
 	build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
-	err = build_id_cache__add_s(sbuild_id, debugdir, filename, false);
+	err = build_id_cache__add_s(sbuild_id, debugdir, filename,
+				    false, false);
 	if (verbose)
 		pr_info("Adding %s %s: %s\n", sbuild_id, filename,
 			err ? "FAIL" : "Ok");
 	return err;
 }
 
-static int build_id_cache__remove_file(const char *filename __used,
-				       const char *debugdir __used)
+static int build_id_cache__remove_file(const char *filename __maybe_unused,
+				       const char *debugdir __maybe_unused)
 {
 	u8 build_id[BUILD_ID_SIZE];
 	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
@@ -119,7 +120,8 @@ static int __cmd_buildid_cache(void)
 	return 0;
 }
 
-int cmd_buildid_cache(int argc, const char **argv, const char *prefix __used)
+int cmd_buildid_cache(int argc, const char **argv,
+		      const char *prefix __maybe_unused)
 {
 	argc = parse_options(argc, argv, buildid_cache_options,
 			     buildid_cache_usage, 0);
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 7d6842826a0..1159feeebb1 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -103,7 +103,8 @@ static int __cmd_buildid_list(void)
 	return perf_session__list_build_ids();
 }
 
-int cmd_buildid_list(int argc, const char **argv, const char *prefix __used)
+int cmd_buildid_list(int argc, const char **argv,
+		     const char *prefix __maybe_unused)
 {
 	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
 	setup_pager();
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index c4c6d76b70e..761f4197a9e 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -33,7 +33,7 @@ static int hists__add_entry(struct hists *self,
 	return -ENOMEM;
 }
 
-static int diff__process_sample_event(struct perf_tool *tool __used,
+static int diff__process_sample_event(struct perf_tool *tool __maybe_unused,
 				      union perf_event *event,
 				      struct perf_sample *sample,
 				      struct perf_evsel *evsel,
@@ -242,7 +242,7 @@ static const struct option options[] = {
 	OPT_END()
 };
 
-int cmd_diff(int argc, const char **argv, const char *prefix __used)
+int cmd_diff(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	sort_order = diff__default_sort_order;
 	argc = parse_options(argc, argv, options, diff_usage, 0);
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index 0dd5a058f76..1fb164164fd 100644
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -113,7 +113,7 @@ static const char * const evlist_usage[] = {
 	NULL
 };
 
-int cmd_evlist(int argc, const char **argv, const char *prefix __used)
+int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	struct perf_attr_details details = { .verbose = false, };
 	const char *input_name = NULL;
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index f9daae5ac47..25c8b942ff8 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -426,7 +426,7 @@ static int show_html_page(const char *perf_cmd)
 	return 0;
 }
 
-int cmd_help(int argc, const char **argv, const char *prefix __used)
+int cmd_help(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	const char *alias;
 	int rc = 0;
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 64d8ba2fb7b..1eaa6617c81 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -17,9 +17,9 @@
 static char		const *input_name = "-";
 static bool		inject_build_ids;
 
-static int perf_event__repipe_synth(struct perf_tool *tool __used,
+static int perf_event__repipe_synth(struct perf_tool *tool __maybe_unused,
 				    union perf_event *event,
-				    struct machine *machine __used)
+				    struct machine *machine __maybe_unused)
 {
 	uint32_t size;
 	void *buf = event;
@@ -40,7 +40,8 @@ static int perf_event__repipe_synth(struct perf_tool *tool __used,
 
 static int perf_event__repipe_op2_synth(struct perf_tool *tool,
 					union perf_event *event,
-					struct perf_session *session __used)
+					struct perf_session *session
+					__maybe_unused)
 {
 	return perf_event__repipe_synth(tool, event, NULL);
 }
@@ -52,13 +53,14 @@ static int perf_event__repipe_event_type_synth(struct perf_tool *tool,
 }
 
 static int perf_event__repipe_tracing_data_synth(union perf_event *event,
-						 struct perf_session *session __used)
+						 struct perf_session *session
+						 __maybe_unused)
 {
 	return perf_event__repipe_synth(NULL, event, NULL);
 }
 
 static int perf_event__repipe_attr(union perf_event *event,
-				   struct perf_evlist **pevlist __used)
+				   struct perf_evlist **pevlist __maybe_unused)
 {