25 files changed, 212 insertions, 106 deletions

diff --git a/tools/Makefile b/tools/Makefile
index bcae806b0c39..9a617adc6675 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -44,6 +44,9 @@ cpupower: FORCE
 cgroup firewire hv guest usb virtio vm net: FORCE
         $(call descend,$@)
 
+liblockdep: FORCE
+        $(call descend,lib/lockdep)
+
 libapikfs: FORCE
         $(call descend,lib/api)
 
@@ -91,6 +94,9 @@ cpupower_clean:
 cgroup_clean hv_clean firewire_clean lguest_clean usb_clean virtio_clean vm_clean net_clean:
         $(call descend,$(@:_clean=),clean)
 
+liblockdep_clean:
+        $(call descend,lib/lockdep,clean)
+
 libapikfs_clean:
         $(call descend,lib/api,clean)
 
diff --git a/tools/hv/hv_fcopy_daemon.c b/tools/hv/hv_fcopy_daemon.c
index 4ecc4fd0bc1b..fba1c75aa484 100644
--- a/tools/hv/hv_fcopy_daemon.c
+++ b/tools/hv/hv_fcopy_daemon.c
@@ -82,8 +82,10 @@ static int hv_start_fcopy(struct hv_start_fcopy *smsg)
 
         if (!access(target_fname, F_OK)) {
                 syslog(LOG_INFO, "File: %s exists", target_fname);
-                if (!smsg->copy_flags & OVER_WRITE)
+                if (!(smsg->copy_flags & OVER_WRITE)) {
+                        error = HV_ERROR_ALREADY_EXISTS;
                         goto done;
+                }
         }
 
         target_fd = open(target_fname, O_RDWR | O_CREAT | O_CLOEXEC, 0744);
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
index 7c4347962353..a74fba6d7743 100644
--- a/tools/lib/api/fs/debugfs.c
+++ b/tools/lib/api/fs/debugfs.c
@@ -12,8 +12,8 @@
 char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
 
 static const char * const debugfs_known_mountpoints[] = {
-        "/sys/kernel/debug/",
-        "/debug/",
+        "/sys/kernel/debug",
+        "/debug",
         0,
 };
 
diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index 07b0b7542511..bba2f5253b6e 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -1,13 +1,7 @@
-# liblockdep version
-LL_VERSION = 0
-LL_PATCHLEVEL = 0
-LL_EXTRAVERSION = 1
-
 # file format version
 FILE_VERSION = 1
 
-MAKEFLAGS += --no-print-directory
-
+LIBLOCKDEP_VERSION=$(shell make --no-print-directory -sC ../../.. kernelversion)
 
 # Makefiles suck: This macro sets a default value of $(2) for the
 # variable named by $(1), unless the variable has been set by
@@ -98,7 +92,7 @@ export prefix libdir bindir src obj
 libdir_SQ = $(subst ','\'',$(libdir))
 bindir_SQ = $(subst ','\'',$(bindir))
 
-LIB_FILE = liblockdep.a liblockdep.so
+LIB_FILE = liblockdep.a liblockdep.so.$(LIBLOCKDEP_VERSION)
 BIN_FILE = lockdep
 
 CONFIG_INCLUDES =
@@ -110,8 +104,6 @@ N		=
 
 export Q VERBOSE
 
-LIBLOCKDEP_VERSION = $(LL_VERSION).$(LL_PATCHLEVEL).$(LL_EXTRAVERSION)
-
 INCLUDES = -I. -I/usr/local/include -I./uinclude -I./include $(CONFIG_INCLUDES)
 
 # Set compile option CFLAGS if not set elsewhere
@@ -146,7 +138,7 @@ do_app_build =						\
 
 do_compile_shared_library =                     \
         ($(print_shared_lib_compile)            \
-        $(CC) --shared $^ -o $@ -lpthread -ldl)
+        $(CC) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='"$@"';$(shell ln -s $@ liblockdep.so))
 
 do_build_static_lib =                           \
         ($(print_static_lib_build)              \
@@ -177,7 +169,7 @@ all: all_cmd
 
 all_cmd: $(CMD_TARGETS)
 
-liblockdep.so: $(PEVENT_LIB_OBJS)
+liblockdep.so.$(LIBLOCKDEP_VERSION): $(PEVENT_LIB_OBJS)
         $(Q)$(do_compile_shared_library)
 
 liblockdep.a: $(PEVENT_LIB_OBJS)
@@ -238,7 +230,7 @@ install_lib: all_cmd
 install: install_lib
 
 clean:
-        $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
+        $(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d
         $(RM) tags TAGS
 
 endif # skip-makefile
diff --git a/tools/lib/lockdep/uinclude/linux/lockdep.h b/tools/lib/lockdep/uinclude/linux/lockdep.h
index d0f5d6e50214..c1552c28507e 100644
--- a/tools/lib/lockdep/uinclude/linux/lockdep.h
+++ b/tools/lib/lockdep/uinclude/linux/lockdep.h
@@ -10,6 +10,9 @@
 
 #define MAX_LOCK_DEPTH 2000UL
 
+#define asmlinkage
+#define __visible
+
 #include "../../../include/linux/lockdep.h"
 
 struct task_struct {
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 1587ea392ad6..b83184f2d484 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -50,6 +50,18 @@ static int show_warning = 1;
                         warning(fmt, ##__VA_ARGS__);    \
         } while (0)
 
+#define do_warning_event(event, fmt, ...)                       \
+        do {                                                    \
+                if (!show_warning)                              \
+                        continue;                               \
+                                                                \
+                if (event)                                      \
+                        warning("[%s:%s] " fmt, event->system,  \
+                                event->name, ##__VA_ARGS__);    \
+                else                                            \
+                        warning(fmt, ##__VA_ARGS__);            \
+        } while (0)
+
 static void init_input_buf(const char *buf, unsigned long long size)
 {
         input_buf = buf;
@@ -1355,7 +1367,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                 }
 
                 if (!field->type) {
-                        do_warning("%s: no type found", __func__);
+                        do_warning_event(event, "%s: no type found", __func__);
                         goto fail;
                 }
                 field->name = last_token;
@@ -1402,7 +1414,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
                                 free_token(token);
                                 type = read_token(&token);
                                 if (type == EVENT_NONE) {
-                                        do_warning("failed to find token");
+                                        do_warning_event(event, "failed to find token");
                                         goto fail;
                                 }
                         }
@@ -1636,7 +1648,7 @@ process_cond(struct event_format *event, struct print_arg *top, char **tok)
         right = alloc_arg();
 
         if (!arg || !left || !right) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 /* arg will be freed at out_free */
                 free_arg(left);
                 free_arg(right);
@@ -1686,7 +1698,7 @@ process_array(struct event_format *event, struct print_arg *top, char **tok)
 
         arg = alloc_arg();
         if (!arg) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 /* '*tok' is set to top->op.op.  No need to free. */
                 *tok = NULL;
                 return EVENT_ERROR;
@@ -1792,7 +1804,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
         if (arg->type == PRINT_OP && !arg->op.left) {
                 /* handle single op */
                 if (token[1]) {
-                        do_warning("bad op token %s", token);
+                        do_warning_event(event, "bad op token %s", token);
                         goto out_free;
                 }
                 switch (token[0]) {
@@ -1802,7 +1814,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
                 case '-':
                         break;
                 default:
-                        do_warning("bad op token %s", token);
+                        do_warning_event(event, "bad op token %s", token);
                         goto out_free;
 
                 }
@@ -1888,7 +1900,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
                         char *new_atom;
 
                         if (left->type != PRINT_ATOM) {
-                                do_warning("bad pointer type");
+                                do_warning_event(event, "bad pointer type");
                                 goto out_free;
                         }
                         new_atom = realloc(left->atom.atom,
@@ -1930,7 +1942,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
                 type = process_array(event, arg, tok);
 
         } else {
-                do_warning("unknown op '%s'", token);
+                do_warning_event(event, "unknown op '%s'", token);
                 event->flags |= EVENT_FL_FAILED;
                 /* the arg is now the left side */
                 goto out_free;
@@ -1951,7 +1963,7 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
         return type;
 
 out_warn_free:
-        do_warning("%s: not enough memory!", __func__);
+        do_warning_event(event, "%s: not enough memory!", __func__);
 out_free:
         free_token(token);
         *tok = NULL;
@@ -2385,7 +2397,7 @@ process_flags(struct event_format *event, struct print_arg *arg, char **tok)
 
         field = alloc_arg();
         if (!field) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 goto out_free;
         }
 
@@ -2438,7 +2450,7 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok)
 
         field = alloc_arg();
         if (!field) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 goto out_free;
         }
 
@@ -2477,7 +2489,7 @@ process_hex(struct event_format *event, struct print_arg *arg, char **tok)
 
         field = alloc_arg();
         if (!field) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 goto out_free;
         }
 
@@ -2492,7 +2504,7 @@ process_hex(struct event_format *event, struct print_arg *arg, char **tok)
 
         field = alloc_arg();
         if (!field) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 *tok = NULL;
                 return EVENT_ERROR;
         }
@@ -2555,7 +2567,7 @@ process_dynamic_array(struct event_format *event, struct print_arg *arg, char **
         free_token(token);
         arg = alloc_arg();
         if (!arg) {
-                do_warning("%s: not enough memory!", __func__);
+                do_warning_event(event, "%s: not enough memory!", __func__);
                 *tok = NULL;
                 return EVENT_ERROR;
         }
@@ -2614,13 +2626,14 @@ process_paren(struct event_format *event, struct print_arg *arg, char **tok)
 
                 /* prevous must be an atom */
                 if (arg->type != PRINT_ATOM) {
-                        do_warning("previous needed to be PRINT_ATOM");
+                        do_warning_event(event, "previous needed to be PRINT_ATOM");
                         goto out_free;
                 }
 
                 item_arg = alloc_arg();
                 if (!item_arg) {
-                        do_warning("%s: not enough memory!", __func__);
+                        do_warning_event(event, "%s: not enough memory!",
+                                         __func__);
                         goto out_free;
                 }
 
@@ -2721,21 +2734,24 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
         for (i = 0; i < func->nr_args; i++) {
                 farg = alloc_arg();
                 if (!farg) {
-                        do_warning("%s: not enough memory!", __func__);
+                        do_warning_event(event, "%s: not enough memory!",
+                                         __func__);
                         return EVENT_ERROR;
                 }
 
                 type = process_arg(event, farg, &token);
                 if (i < (func->nr_args - 1)) {
                         if (type != EVENT_DELIM || strcmp(token, ",") != 0) {
-                                warning("Error: function '%s()' expects %d arguments but event %s only uses %d",
+                                do_warning_event(event,
+                                        "Error: function '%s()' expects %d arguments but event %s only uses %d",
                                         func->name, func->nr_args,
                                         event->name, i + 1);
                                 goto err;
                         }
                 } else {
                         if (type != EVENT_DELIM || strcmp(token, ")") != 0) {
-                                warning("Error: function '%s()' only expects %d arguments but event %s has more",
+                                do_warning_event(event,
+                                        "Error: function '%s()' only expects %d arguments but event %s has more",
                                         func->name, func->nr_args, event->name);
                                 goto err;
                         }
@@ -2792,7 +2808,7 @@ process_function(struct event_format *event, struct print_arg *arg,
                 return process_func_handler(event, func, arg, tok);
         }
 
-        do_warning("function %s not defined", token);
+        do_warning_event(event, "function %s not defined", token);
         free_token(token);
         return EVENT_ERROR;
 }
@@ -2878,7 +2894,7 @@ process_arg_token(struct event_format *event, struct print_arg *arg,
 
         case EVENT_ERROR ... EVENT_NEWLINE:
         default:
-                do_warning("unexpected type %d", type);
+                do_warning_event(event, "unexpected type %d", type);
                 return EVENT_ERROR;
         }
         *tok = token;
@@ -2901,7 +2917,8 @@ static int event_read_print_args(struct event_format *event, struct print_arg **
 
                 arg = alloc_arg();
                 if (!arg) {
-                        do_warning("%s: not enough memory!", __func__);
+                        do_warning_event(event, "%s: not enough memory!",
+                                         __func__);
                         return -1;
                 }
 
@@ -3481,11 +3498,12 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
         return val;
 
 out_warning_op:
-        do_warning("%s: unknown op '%s'", __func__, arg->op.op);
+        do_warning_event(event, "%s: unknown op '%s'", __func__, arg->op.op);
         return 0;
 
 out_warning_field:
-        do_warning("%s: field %s not found", __func__, arg->field.name);
+        do_warning_event(event, "%s: field %s not found",
+                         __func__, arg->field.name);
         return 0;
 }
 
@@ -3591,7 +3609,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                 }
                 str = malloc(len + 1);
                 if (!str) {
-                        do_warning("%s: not enough memory!", __func__);
+                        do_warning_event(event, "%s: not enough memory!",
+                                         __func__);
                         return;
                 }
                 memcpy(str, data + field->offset, len);
@@ -3697,7 +3716,8 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
         return;
 
 out_warning_field:
-        do_warning("%s: field %s not found", __func__, arg->field.name);
+        do_warning_event(event, "%s: field %s not found",
+                         __func__, arg->field.name);
 }
 
 static unsigned long long
@@ -3742,14 +3762,16 @@ process_defined_func(struct trace_seq *s, void *data, int size,
                         trace_seq_terminate(&str);
                         string = malloc(sizeof(*string));
                         if (!string) {
-                                do_warning("%s(%d): malloc str", __func__, __LINE__);
+                                do_warning_event(event, "%s(%d): malloc str",
+                                                 __func__, __LINE__);
                                 goto out_free;
                         }
                         string->next = strings;
                         string->str = strdup(str.buffer);
                         if (!string->str) {
                                 free(string);
-                                do_warning("%s(%d): malloc str", __func__, __LINE__);
+                                do_warning_event(event, "%s(%d): malloc str",
+                                                 __func__, __LINE__);
                                 goto out_free;
                         }
                         args[i] = (uintptr_t)string->str;
@@ -3761,7 +3783,7 @@ process_defined_func(struct trace_seq *s, void *data, int size,
                          * Something went totally wrong, this is not
                          * an input error, something in this code broke.
                          */
-                        do_warning("Unexpected end of arguments\n");
+                        do_warning_event(event, "Unexpected end of arguments\n");
                         goto out_free;
                 }
                 farg = farg->next;
@@ -3811,12 +3833,12 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
         if (!field) {
                 field = pevent_find_field(event, "buf");
                 if (!field) {
-                        do_warning("can't find buffer field for binary printk");
+                        do_warning_event(event, "can't find buffer field for binary printk");
                         return NULL;
                 }
                 ip_field = pevent_find_field(event, "ip");
                 if (!ip_field) {
-                        do_warning("can't find ip field for binary printk");
+                        do_warning_event(event, "can't find ip field for binary printk");
                         return NULL;
                 }
                 pevent->bprint_buf_field = field;
@@ -3830,7 +3852,8 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
          */
         args = alloc_arg();
         if (!args) {
-                do_warning("%s(%d): not enough memory!", __func__, __LINE__);
+                do_warning_event(event, "%s(%d): not enough memory!",
+                                 __func__, __LINE__);
                 return NULL;
         }
         arg = args;
@@ -3896,7 +3919,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
                                 bptr += vsize;
                                 arg = alloc_arg();
                                 if (!arg) {
-                                        do_warning("%s(%d): not enough memory!",
+                                        do_warning_event(event, "%s(%d): not enough memory!",
                                                    __func__, __LINE__);
                                         goto out_free;
                                 }
@@ -3919,7 +3942,7 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
                         case 's':
                                 arg = alloc_arg();
                                 if (!arg) {
-                                        do_warning("%s(%d): not enough memory!",
+                                        do_warning_event(event, "%s(%d): not enough memory!",
                                                    __func__, __LINE__);
                                         goto out_free;
                                 }
@@ -3959,7 +3982,7 @@ get_bprint_format(void *data, int size __maybe_unused,
         if (!field) {
                 field = pevent_find_field(event, "fmt");
                 if (!field) {
-                        do_warning("can't find format field for binary printk");
+                        do_warning_event(event, "can't find format field for binary printk");
                         return NULL;
                 }
                 pevent->bprint_fmt_field = field;
@@ -4003,8 +4026,8 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
                 arg->field.field =
                         pevent_find_any_field(event, arg->field.name);
                 if (!arg->field.field) {
-                        do_warning("%s: field %s not found",
-                                   __func__, arg->field.name);
+                        do_warning_event(event, "%s: field %s not found",
+                                         __func__, arg->field.name);
                         return;
                 }
         }
@@ -4176,7 +4199,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                         case '*':
                                 /* The argument is the length. */
                                 if (!arg) {
-                                        do_warning("no argument match");
+                                        do_warning_event(event, "no argument match");
                                         event->flags |= EVENT_FL_FAILED;
                                         goto out_failed;
                                 }
@@ -4213,7 +4236,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                         case 'X':
                         case 'u':
                                 if (!arg) {
-                                        do_warning("no argument match");
+                                        do_warning_event(event, "no argument match");
                                         event->flags |= EVENT_FL_FAILED;
                                         goto out_failed;
                                 }
@@ -4223,7 +4246,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 
                                 /* should never happen */
                                 if (len > 31) {
-                                        do_warning("bad format!");
+                                        do_warning_event(event, "bad format!");
                                         event->flags |= EVENT_FL_FAILED;
                                         len = 31;
                                 }
@@ -4290,13 +4313,13 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                                                 trace_seq_printf(s, format, (long long)val);
                                         break;
                                 default:
-                                        do_warning("bad count (%d)", ls);
+                                        do_warning_event(event, "bad count (%d)", ls);
                                         event->flags |= EVENT_FL_FAILED;
                                 }
                                 break;
                         case 's':
                                 if (!arg) {
-                                        do_warning("no matching argument");
+                                        do_warning_event(event, "no matching argument");
                                         event->flags |= EVENT_FL_FAILED;
                                         goto out_failed;
                                 }
@@ -4306,7 +4329,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
 
                                 /* should never happen */
                                 if (len > 31) {
-                                        do_warning("bad format!");
+                                        do_warning_event(event, "bad format!");
                                         event->flags |= EVENT_FL_FAILED;
                                         len = 31;
                                 }
@@ -4321,6 +4344,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
                                               format, len_arg, arg);
                                 trace_seq_terminate(&p);
                                 trace_seq_puts(s, p.buffer);
+                                trace_seq_destroy(&p);
                                 arg = arg->next;
                                 break;
                         default:
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 791c539374c7..feab94281634 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -876,8 +876,8 @@ struct event_filter {
 struct event_filter *pevent_filter_alloc(struct pevent *pevent);
 
 /* for backward compatibility */
-#define FILTER_NONE             PEVENT_ERRNO__FILTER_NOT_FOUND
-#define FILTER_NOEXIST          PEVENT_ERRNO__NO_FILTER
+#define FILTER_NONE             PEVENT_ERRNO__NO_FILTER
+#define FILTER_NOEXIST          PEVENT_ERRNO__FILTER_NOT_FOUND
 #define FILTER_MISS             PEVENT_ERRNO__FILTER_MISS
 #define FILTER_MATCH            PEVENT_ERRNO__FILTER_MATCH
 
diff --git a/tools/net/bpf_dbg.c b/tools/net/bpf_dbg.c
index bb31813e43dd..9a287bec695a 100644
--- a/tools/net/bpf_dbg.c
+++ b/tools/net/bpf_dbg.c
@@ -820,7 +820,7 @@ do_div:
                 r->A &= r->X;
                 break;
         case BPF_ALU_AND | BPF_K:
-                r->A &= r->X;
+                r->A &= K;
                 break;
         case BPF_ALU_OR | BPF_X:
                 r->A |= r->X;
diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt
index 7065cd6fbdfc..4464ad770d51 100644
--- a/tools/perf/Documentation/perf-bench.txt
+++ b/tools/perf/Documentation/perf-bench.txt
@@ -48,6 +48,12 @@ SUBSYSTEM
 'mem'::
         Memory access performance.
 
+'numa'::
+        NUMA scheduling and MM benchmarks.
+
+'futex'::
+        Futex stressing benchmarks.
+
 'all'::
         All benchmark subsystems.
 
@@ -187,6 +193,22 @@ Show only the result with page faults before memset.
 --no-prefault::
 Show only the result without page faults before memset.
 
+SUITES FOR 'numa'
+~~~~~~~~~~~~~~~~~
+*mem*::
+Suite for evaluating NUMA workloads.
+
+SUITES FOR 'futex'
+~~~~~~~~~~~~~~~~~~
+*hash*::
+Suite for evaluating hash tables.
+
+*wake*::
+Suite for evaluating wake calls.
+
+*requeue*::
+Suite for evaluating requeue calls.
+
 SEE ALSO
 --------
 linkperf:perf[1]
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index cdd8d4946dba..976b00c6cdb1 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -87,7 +87,6 @@ Default is to monitor all CPUS.
 --realtime=<priority>::
         Collect data with this RT SCHED_FIFO priority.
 
--s <symbol>::
 --sym-annotate=<symbol>::
         Annotate this symbol.
 
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 50d875d970c4..895edd32930c 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -192,13 +192,13 @@ endif
 export PERL_PATH
 
 $(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
-        $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
+        $(QUIET_FLEX)$(FLEX) -o $@ --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) util/parse-events.l
 
 $(OUTPUT)util/parse-events-bison.c: util/parse-events.y
         $(QUIET_BISON)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c -p parse_events_
 
 $(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
-        $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
+        $(QUIET_FLEX)$(FLEX) -o $@ --header-file=$(OUTPUT)util/pmu-flex.h util/pmu.l
 
 $(OUTPUT)util/pmu-bison.c: util/pmu.y
         $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
@@ -589,7 +589,7 @@ $(GTK_OBJS): $(OUTPUT)%.o: %.c $(LIB_H)
         $(QUIET_CC)$(CC) -o $@ -c -fPIC $(CFLAGS) $(GTK_CFLAGS) $<
 
 $(OUTPUT)libperf-gtk.so: $(GTK_OBJS) $(PERFLIBS)
-        $(QUIET_LINK)$(CC) -o $@ -shared $(ALL_LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)
+        $(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)
 
 $(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
         $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
index b602ad93ce63..83bc2385e6d3 100644
--- a/tools/perf/arch/x86/tests/dwarf-unwind.c
+++ b/tools/perf/arch/x86/tests/dwarf-unwind.c
@@ -23,9 +23,10 @@ static int sample_ustack(struct perf_sample *sample,
 
         sp = (unsigned long) regs[PERF_REG_X86_SP];
 
-        map = map_groups__find(&thread->mg, MAP__FUNCTION, (u64) sp);
+        map = map_groups__find(&thread->mg, MAP__VARIABLE, (u64) sp);
         if (!map) {
                 pr_debug("failed to get stack map\n");
+                free(buf);
                 return -1;
         }
 
diff --git a/tools/perf/arch/x86/tests/regs_load.S b/tools/perf/arch/x86/tests/regs_load.S
index 99167bf644ea..60875d5c556c 100644
--- a/tools/perf/arch/x86/tests/regs_load.S
+++ b/tools/perf/arch/x86/tests/regs_load.S
@@ -1,4 +1,3 @@
-
 #include <linux/linkage.h>
 
 #define AX       0
@@ -90,3 +89,10 @@ ENTRY(perf_regs_load)
         ret
 ENDPROC(perf_regs_load)
 #endif
+
+/*
+ * We need to provide note.GNU-stack section, saying that we want
+ * NOT executable stack. Otherwise the final linking will assume that
+ * the ELF stack should not be restricted at all and set it RWX.
+ */
+.section .note.GNU-stack,"",@progbits
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 97d86d828190..ebfa163b80b5 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1593,6 +1593,10 @@ static void init_params(struct params *p, const char *name, int argc, const char
         p->data_rand_walk               = true;
         p->nr_loops                     = -1;
         p->init_random                  = true;
+        p->mb_global_str                = "1";
+        p->nr_proc                      = 1;
+        p->nr_threads                   = 1;
+        p->nr_secs                      = 5;
         p->run_all                      = argc == 1;
 }
 
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 21c164b8f9db..0f1e5a2f6ad7 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -404,6 +404,7 @@ static struct kvm_event *kvm_alloc_init_event(struct event_key *key)
         }
 
         event->key = *key;
+        init_stats(&event->total.stats);
         return event;
 }
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index eb524f91bffe..8ce62ef7f6c3 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -374,7 +374,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 
         session = perf_session__new(file, false, NULL);
         if (session == NULL) {
-                pr_err("Not enough memory for reading perf file header\n");
+                pr_err("Perf session creation failed.\n");
                 return -1;
         }
 
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 8b0e1c9234d9..65a151e36067 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -174,13 +174,20 @@ static inline int perf_evsel__nr_cpus(struct perf_evsel *evsel)
 
 static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
 {
-        memset(evsel->priv, 0, sizeof(struct perf_stat));
+        int i;
+        struct perf_stat *ps = evsel->priv;
+
+        for (i = 0; i < 3; i++)
+                init_stats(&ps->res_stats[i]);
 }
 
 static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
 {
         evsel->priv = zalloc(sizeof(struct perf_stat));
-        return evsel->priv == NULL ? -ENOMEM : 0;
+        if (evsel == NULL)
+                return -ENOMEM;
+        perf_evsel__reset_stat_priv(evsel);
+        return 0;
 }
 
 static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c23418225c2c..802cf544202b 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -34,6 +34,14 @@ ifeq ($(ARCH),arm)
   LIBUNWIND_LIBS = -lunwind -lunwind-arm
 endif
 
+# So far there's only x86 libdw unwind support merged in perf.
+# Disable it on all other architectures in case libdw unwind
+# support is detected in system. Add supported architectures
+# to the check.
+ifneq ($(ARCH),x86)
+  NO_LIBDW_DWARF_UNWIND := 1
+endif
+
 ifeq ($(LIBUNWIND_LIBS),)
   NO_LIBUNWIND := 1
 else
@@ -65,10 +73,9 @@ ifndef NO_LIBELF
   ifdef LIBDW_DIR
     LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
     LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
-
-    FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
-    FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
   endif
+  FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
+  FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
 endif
 
 # include ARCH specific config
@@ -110,6 +117,10 @@ CFLAGS += -Wall
 CFLAGS += -Wextra
 CFLAGS += -std=gnu99
 
+# Enforce a non-executable stack, as we may regress (again) in the future by
+# adding assembler files missing the .GNU-stack linker note.
+LDFLAGS += -Wl,-z,noexecstack
+
 EXTLIBS = -lelf -lpthread -lrt -lm -ldl
 
 ifneq ($(OUTPUT),)
@@ -187,7 +198,10 @@ VF_FEATURE_TESTS =			\
         stackprotector-all              \
         timerfd                         \
         libunwind-debug-frame           \
-        bionic
+        bionic                          \
+        liberty                         \
+        liberty-z                       \
+        cplus-demangle
 
 # Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
 # If in the future we need per-feature checks/flags for features not
@@ -278,6 +292,8 @@ else
       NO_LIBELF := 1
       NO_DWARF := 1
       NO_DEMANGLE := 1
+      NO_LIBUNWIND := 1
+      NO_LIBDW_DWARF_UNWIND := 1
     else
       msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
     endif
@@ -503,7 +519,21 @@ else
 endif
 
 ifeq ($(feature-libbfd), 1)
-  EXTLIBS += -lbfd -lz -liberty
+  EXTLIBS += -lbfd
+
+  # call all detections now so we get correct
+  # status in VF output
+  $(call feature_check,liberty)
+  $(call feature_check,liberty-z)
+  $(call feature_check,cplus-demangle)
+
+  ifeq ($(feature-liberty), 1)
+    EXTLIBS += -liberty
+  else
+    ifeq ($(feature-liberty-z), 1)
+      EXTLIBS += -liberty -lz
+    endif
+  endif
 endif
 
 ifdef NO_DEMANGLE
@@ -514,15 +544,10 @@ else
     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
   else
     ifneq ($(feature-libbfd), 1)
-      $(call feature_check,liberty)
-      ifeq ($(feature-liberty), 1)
-        EXTLIBS += -lbfd -liberty
-      else
-        $(call feature_check,liberty-z)
-        ifeq ($(feature-liberty-z), 1)
-          EXTLIBS += -lbfd -liberty -lz
-        else
-          $(call feature_check,cplus-demangle)
+      ifneq ($(feature-liberty), 1)
+        ifneq ($(feature-liberty-z), 1)
+          # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
+          # or any of 'bfd iberty z' trinity
           ifeq ($(feature-cplus-demangle), 1)
             EXTLIBS += -liberty
             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 653a8fe2db95..bfb186900ac0 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -504,6 +504,7 @@ static int do_test_code_reading(bool try_kcore)
                 if (ret < 0) {
                         if (!excl_kernel) {
                                 excl_kernel = true;
+                                perf_evlist__set_maps(evlist, NULL, NULL);
                                 perf_evlist__delete(evlist);
                                 evlist = NULL;
                                 continue;
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 5daeae1cb4c0..2f92d6e7ee00 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -46,6 +46,7 @@ make_install_man    := install-man
 make_install_html   := install-html
 make_install_info   := install-info
 make_install_pdf    := install-pdf
+make_static         := LDFLAGS=-static
 
 # all the NO_* variable combined
 make_minimal        := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1
@@ -87,6 +88,7 @@ run += make_install_bin
 # run += make_install_info
 # run += make_install_pdf
 run += make_minimal
+run += make_static
 
 ifneq ($(call has,ctags),)
 run += make_tags
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index 1fbcd8bdc11b..55de44ecebef 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -86,10 +86,17 @@ static int open_file_read(struct perf_data_file *file)
 
 static int open_file_write(struct perf_data_file *file)
 {
+        int fd;
+
         if (check_backup(file))
                 return -1;
 
-        return open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR);
+        fd = open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR);
+
+        if (fd < 0)
+                pr_err("failed to open %s : %s\n", file->path, strerror(errno));
+
+        return fd;
 }
 
 static int open_file(struct perf_data_file *file)
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index a53cd0b8c151..27c2a5efe450 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -717,7 +717,7 @@ static char *get_kernel_version(const char *root_dir)
 }
 
 static int map_groups__set_modules_path_dir(struct map_groups *mg,
-                                const char *dir_name)
+                                const char *dir_name, int depth)
 {
         struct dirent *dent;
         DIR *dir = opendir(dir_name);
@@ -742,7 +742,15 @@ static int map_groups__set_modules_path_dir(struct map_groups *mg,
                             !strcmp(dent->d_name, ".."))
                                 continue;
 
-                        ret = map_groups__set_modules_path_dir(mg, path);
+                        /* Do not follow top-level source and build symlinks */
+                        if (depth == 0) {
+                                if (!strcmp(dent->d_name, "source") ||
+                                    !strcmp(dent->d_name, "build"))
+                                        continue;
+                        }
+
+                        ret = map_groups__set_modules_path_dir(mg, path,
+                                                               depth + 1);
                         if (ret < 0)
                                 goto out;
                 } else {
@@ -786,11 +794,11 @@ static int machine__set_modules_path(struct machine *machine)
         if (!version)
                 return -1;
 
-        snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s/kernel",
+        snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s",
                  machine->root_dir, version);
         free(version);
 
-        return map_groups__set_modules_path_dir(&machine->kmaps, modules_path);
+        return map_groups__set_modules_path_dir(&machine->kmaps, modules_path, 0);
 }
 
 static int machine__create_module(void *arg, const char *name, u64 start)
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index df0238654698..562762117639 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -985,7 +985,7 @@ static int debuginfo__find_probes(struct debuginfo *dbg,
 
 #if _ELFUTILS_PREREQ(0, 142)
         /* Get the call frame information from this dwarf */
-        pf->cfi = dwarf_getcfi(dbg->dbg);
+        pf->cfi = dwarf_getcfi_elf(dwarf_getelf(dbg->dbg));
 #endif
 
         off = 0;
@@ -1441,13 +1441,15 @@ static int line_range_walk_cb(const char *fname, int lineno,
                               void *data)
 {
         struct line_finder *lf = data;
+        int err;
 
         if ((strtailcmp(fname, lf->fname) != 0) ||
             (lf->lno_s > lineno || lf->lno_e < lineno))
                 return 0;
 
-        if (line_range_add_line(fname, lineno, lf->lr) < 0)
-                return -EINVAL;
+        err = line_range_add_line(fname, lineno, lf->lr);
+        if (err < 0 && err != -EEXIST)
+                return err;
 
         return 0;
 }
@@ -1473,14 +1475,15 @@ static int find_line_range_by_line(Dwarf_Die *sp_die, struct line_finder *lf)
 
 static int line_range_inline_cb(Dwarf_Die *in_die, void *data)
 {
-        find_line_range_by_line(in_die, data);
+        int ret = find_line_range_by_line(in_die, data);
 
         /*
          * We have to check all instances of inlined function, because
          * some execution paths can be optimized out depends on the
-         * function argument of instances
+         * function argument of instances. However, if an error occurs,
+         * it should be handled by the caller.
          */
-        return 0;
+        return ret < 0 ? ret : 0;
 }
 
 /* Search function definition from function name */
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 3b7dbf51d4a9..6864661a79dd 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -6,6 +6,7 @@
 #include <inttypes.h>
 
 #include "symbol.h"
+#include "vdso.h"
 #include <symbol/kallsyms.h>
 #include "debug.h"
 
@@ -618,6 +619,7 @@ int symsrc__init(struct symsrc *ss, struct dso *dso, const char *name,
                 GElf_Shdr shdr;
                 ss->adjust_symbols = (ehdr.e_type == ET_EXEC ||
                                 ehdr.e_type == ET_REL ||
+                                is_vdso_map(dso->short_name) ||
                                 elf_section_by_name(elf, &ehdr, &shdr,
                                                      ".gnu.prelink_undo",
                                                      NULL) != NULL);
diff --git a/tools/power/acpi/Makefile b/tools/power/acpi/Makefile
index d9186a2fdf06..c2c0f20067a5 100644
--- a/tools/power/acpi/Makefile
+++ b/tools/power/acpi/Makefile
@@ -89,15 +89,6 @@ else
         STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
 endif
 
-# if DEBUG is enabled, then we do not strip or optimize
-ifeq ($(strip $(DEBUG)),true)
-        CFLAGS += -O1 -g -DDEBUG
-        STRIPCMD = /bin/true -Since_we_are_debugging
-else
-        CFLAGS += $(OPTIMIZATION) -fomit-frame-pointer
-        STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
-endif
-
 # --- ACPIDUMP BEGIN ---
 
 vpath %.c \
@@ -128,7 +119,7 @@ clean:
         -rm -f $(OUTPUT)acpidump
 
 install-tools:
-        $(INSTALL) -d $(DESTDIR)${bindir}
+        $(INSTALL) -d $(DESTDIR)${sbindir}
         $(INSTALL_PROGRAM) $(OUTPUT)acpidump $(DESTDIR)${sbindir}
 
 install-man: