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

Pull perf changes from Ingo Molnar:
 "Core kernel changes:

   - One of the more interesting features in this cycle is the ability
     to attach eBPF programs (user-defined, sandboxed bytecode executed
     by the kernel) to kprobes.

     This allows user-defined instrumentation on a live kernel image
     that can never crash, hang or interfere with the kernel negatively.
     (Right now it's limited to root-only, but in the future we might
     allow unprivileged use as well.)

     (Alexei Starovoitov)

   - Another non-trivial feature is per event clockid support: this
     allows, amongst other things, the selection of different clock
     sources for event timestamps traced via perf.

     This feature is sought by people who'd like to merge perf generated
     events with external events that were measured with different
     clocks:

       - cluster wide profiling

       - for system wide tracing with user-space events,

       - JIT profiling events

     etc.  Matching perf tooling support is added as well, available via
     the -k, --clockid <clockid> parameter to perf record et al.

     (Peter Zijlstra)

  Hardware enablement kernel changes:

   - x86 Intel Processor Trace (PT) support: which is a hardware tracer
     on steroids, available on Broadwell CPUs.

     The hardware trace stream is directly output into the user-space
     ring-buffer, using the 'AUX' data format extension that was added
     to the perf core to support hardware constraints such as the
     necessity to have the tracing buffer physically contiguous.

     This patch-set was developed for two years and this is the result.
     A simple way to make use of this is to use BTS tracing, the PT
     driver emulates BTS output - available via the 'intel_bts' PMU.
     More explicit PT specific tooling support is in the works as well -
     will probably be ready by 4.2.

     (Alexander Shishkin, Peter Zijlstra)

   - x86 Intel Cache QoS Monitoring (CQM) support: this is a hardware
     feature of Intel Xeon CPUs that allows the measurement and
     allocation/partitioning of caches to individual workloads.

     These kernel changes expose the measurement side as a new PMU
     driver, which exposes various QoS related PMU events.  (The
     partitioning change is work in progress and is planned to be merged
     as a cgroup extension.)

     (Matt Fleming, Peter Zijlstra; CPU feature detection by Peter P
     Waskiewicz Jr)

   - x86 Intel Haswell LBR call stack support: this is a new Haswell
     feature that allows the hardware recording of call chains, plus
     tooling support.  To activate this feature you have to enable it
     via the new 'lbr' call-graph recording option:

        perf record --call-graph lbr
        perf report

     or:

        perf top --call-graph lbr

     This hardware feature is a lot faster than stack walk or dwarf
     based unwinding, but has some limitations:

       - It reuses the current LBR facility, so LBR call stack and
         branch record can not be enabled at the same time.

       - It is only available for user-space callchains.

     (Yan, Zheng)

   - x86 Intel Broadwell CPU support and various event constraints and
     event table fixes for earlier models.

     (Andi Kleen)

   - x86 Intel HT CPUs event scheduling workarounds.  This is a complex
     CPU bug affecting the SNB,IVB,HSW families that results in counter
     value corruption.  The mitigation code is automatically enabled and
     is transparent.

     (Maria Dimakopoulou, Stephane Eranian)

  The perf tooling side had a ton of changes in this cycle as well, so
  I'm only able to list the user visible changes here, in addition to
  the tooling changes outlined above:

  User visible changes affecting all tools:

      - Improve support of compressed kernel modules (Jiri Olsa)
      - Save DSO loading errno to better report errors (Arnaldo Carvalho de Melo)
      - Bash completion for subcommands (Yunlong Song)
      - Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa)
      - Support missing -f to override perf.data file ownership. (Yunlong Song)
      - Show the first event with an invalid filter (David Ahern, Arnaldo Carvalho de Melo)

  User visible changes in individual tools:

    'perf data':

        New tool for converting perf.data to other formats, initially
        for the CTF (Common Trace Format) from LTTng (Jiri Olsa,
        Sebastian Siewior)

    'perf diff':

        Add --kallsyms option (David Ahern)

    'perf list':

        Allow listing events with 'tracepoint' prefix (Yunlong Song)

        Sort the output of the command (Yunlong Song)

    'perf kmem':

        Respect -i option (Jiri Olsa)

        Print big numbers using thousands' group (Namhyung Kim)

        Allow -v option (Namhyung Kim)

        Fix alignment of slab result table (Namhyung Kim)

    'perf probe':

        Support multiple probes on different binaries on the same command line (Masami Hiramatsu)

        Support unnamed union/structure members data collection. (Masami Hiramatsu)

        Check kprobes blacklist when adding new events. (Masami Hiramatsu)

    'perf record':

        Teach 'perf record' about perf_event_attr.clockid (Peter Zijlstra)

        Support recording running/enabled time (Andi Kleen)

    'perf sched':

        Improve the performance of 'perf sched replay' on high CPU core count machines (Yunlong Song)

    'perf report' and 'perf top':

        Allow annotating entries in callchains in the hists browser (Arnaldo Carvalho de Melo)

        Indicate which callchain entries are annotated in the
        TUI hists browser (Arnaldo Carvalho de Melo)

        Add pid/tid filtering to 'report' and 'script' commands (David Ahern)

        Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one
        cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT
        events (Arnaldo Carvalho de Melo)

    'perf stat':

        Report unsupported events properly (Suzuki K. Poulose)

        Output running time and run/enabled ratio in CSV mode (Andi Kleen)

    'perf trace':

        Handle legacy syscalls tracepoints (David Ahern, Arnaldo Carvalho de Melo)

        Only insert blank duration bracket when tracing syscalls (Arnaldo Carvalho de Melo)

        Filter out the trace pid when no threads are specified (Arnaldo Carvalho de Melo)

        Dump stack on segfaults (Arnaldo Carvalho de Melo)

        No need to explicitely enable evsels for workload started from perf, let it
        be enabled via perf_event_attr.enable_on_exec, removing some events that take
        place in the 'perf trace' before a workload is really started by it.
        (Arnaldo Carvalho de Melo)

        Allow mixing with tracepoints and suppressing plain syscalls. (Arnaldo Carvalho de Melo)

  There's also been a ton of infrastructure work done, such as the
  split-out of perf's build system into tools/build/ and other changes -
  see the shortlog and changelog for details"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (358 commits)
  perf/x86/intel/pt: Clean up the control flow in pt_pmu_hw_init()
  perf evlist: Fix type for references to data_head/tail
  perf probe: Check the orphaned -x option
  perf probe: Support multiple probes on different binaries
  perf buildid-list: Fix segfault when show DSOs with hits
  perf tools: Fix cross-endian analysis
  perf tools: Fix error path to do closedir() when synthesizing threads
  perf tools: Fix synthesizing fork_event.ppid for non-main thread
  perf tools: Add 'I' event modifier for exclude_idle bit
  perf report: Don't call map__kmap if map is NULL.
  perf tests: Fix attr tests
  perf probe: Fix ARM 32 building error
  perf tools: Merge all perf_event_attr print functions
  perf record: Add clockid parameter
  perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10
  perf sched replay: Support using -f to override perf.data file ownership
  perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files
  perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task
  perf sched replay: Fix the segmentation fault problem caused by pr_err in threads
  perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations
  ...

21 files changed, 689 insertions, 379 deletions

diff --git a/tools/lib/api/Build b/tools/lib/api/Build
new file mode 100644
index 000000000000..3653965cf481
--- /dev/null
+++ b/tools/lib/api/Build
@@ -0,0 +1,2 @@
+libapi-y += fd/
+libapi-y += fs/
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 36c08b1f4afb..d8fe29fc19a4 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -1,49 +1,43 @@
 include ../../scripts/Makefile.include
 include ../../perf/config/utilities.mak         # QUIET_CLEAN
 
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
+endif
+
 CC = $(CROSS_COMPILE)gcc
 AR = $(CROSS_COMPILE)ar
 
-# guard against environment variables
-LIB_H=
-LIB_OBJS=
-
-LIB_H += fs/debugfs.h
-LIB_H += fs/fs.h
-# See comment below about piggybacking...
-LIB_H += fd/array.h
-
-LIB_OBJS += $(OUTPUT)fs/debugfs.o
-LIB_OBJS += $(OUTPUT)fs/fs.o
-# XXX piggybacking here, need to introduce libapikfd, or rename this
-# to plain libapik.a and make it have it all api goodies
-LIB_OBJS += $(OUTPUT)fd/array.o
+MAKEFLAGS += --no-print-directory
 
-LIBFILE = libapikfs.a
+LIBFILE = $(OUTPUT)libapi.a
 
-CFLAGS = -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) -fPIC
-EXTLIBS = -lelf -lpthread -lrt -lm
-ALL_CFLAGS = $(CFLAGS) $(BASIC_CFLAGS) -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
-ALL_LDFLAGS = $(LDFLAGS)
+CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -Werror -O6 -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
 
 RM = rm -f
 
-$(LIBFILE): $(LIB_OBJS)
-        $(QUIET_AR)$(RM) $@ && $(AR) rcs $(OUTPUT)$@ $(LIB_OBJS)
+build  := -f $(srctree)/tools/build/Makefile.build dir=. obj
+API_IN := $(OUTPUT)libapi-in.o
 
-$(LIB_OBJS): $(LIB_H)
+export srctree OUTPUT CC LD CFLAGS V
 
-libapi_dirs:
-        $(QUIET_MKDIR)mkdir -p $(OUTPUT)fd $(OUTPUT)fs
+all: $(LIBFILE)
 
-$(OUTPUT)%.o: %.c libapi_dirs
-        $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
-$(OUTPUT)%.s: %.c libapi_dirs
-        $(QUIET_CC)$(CC) -S $(ALL_CFLAGS) $<
-$(OUTPUT)%.o: %.S libapi_dirs
-        $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $<
+$(API_IN): FORCE
+        @$(MAKE) $(build)=libapi
+
+$(LIBFILE): $(API_IN)
+        $(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(API_IN)
 
 clean:
-        $(call QUIET_CLEAN, libapi) $(RM) $(LIB_OBJS) $(LIBFILE)
+        $(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE); \
+        find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
+
+FORCE:
 
-.PHONY: clean
+.PHONY: clean FORCE
diff --git a/tools/lib/api/fd/Build b/tools/lib/api/fd/Build
new file mode 100644
index 000000000000..605d99f6d71a
--- /dev/null
+++ b/tools/lib/api/fd/Build
@@ -0,0 +1 @@
+libapi-y += array.o
diff --git a/tools/lib/api/fs/Build b/tools/lib/api/fs/Build
new file mode 100644
index 000000000000..6de5a4f0b501
--- /dev/null
+++ b/tools/lib/api/fs/Build
@@ -0,0 +1,4 @@
+libapi-y += fs.o
+libapi-y += debugfs.o
+libapi-y += findfs.o
+libapi-y += tracefs.o
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
index d2b18e887071..8305b3e9d48e 100644
--- a/tools/lib/api/fs/debugfs.c
+++ b/tools/lib/api/fs/debugfs.c
@@ -3,75 +3,50 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 #include <stdbool.h>
 #include <sys/vfs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
 #include <sys/mount.h>
 #include <linux/kernel.h>
 
 #include "debugfs.h"
 
-char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug";
+#ifndef DEBUGFS_DEFAULT_PATH
+#define DEBUGFS_DEFAULT_PATH            "/sys/kernel/debug"
+#endif
+
+char debugfs_mountpoint[PATH_MAX + 1] = DEBUGFS_DEFAULT_PATH;
 
 static const char * const debugfs_known_mountpoints[] = {
-        "/sys/kernel/debug",
+        DEBUGFS_DEFAULT_PATH,
         "/debug",
         0,
 };
 
 static bool debugfs_found;
 
+bool debugfs_configured(void)
+{
+        return debugfs_find_mountpoint() != NULL;
+}
+
 /* find the path to the mounted debugfs */
 const char *debugfs_find_mountpoint(void)
 {
-        const char * const *ptr;
-        char type[100];
-        FILE *fp;
+        const char *ret;
 
         if (debugfs_found)
                 return (const char *)debugfs_mountpoint;
 
-        ptr = debugfs_known_mountpoints;
-        while (*ptr) {
-                if (debugfs_valid_mountpoint(*ptr) == 0) {
-                        debugfs_found = true;
-                        strcpy(debugfs_mountpoint, *ptr);
-                        return debugfs_mountpoint;
-                }
-                ptr++;
-        }
-
-        /* give up and parse /proc/mounts */
-        fp = fopen("/proc/mounts", "r");
-        if (fp == NULL)
-                return NULL;
-
-        while (fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
-                      debugfs_mountpoint, type) == 2) {
-                if (strcmp(type, "debugfs") == 0)
-                        break;
-        }
-        fclose(fp);
+        ret = find_mountpoint("debugfs", (long) DEBUGFS_MAGIC,
+                              debugfs_mountpoint, PATH_MAX + 1,
+                              debugfs_known_mountpoints);
+        if (ret)
+                debugfs_found = true;
 
-        if (strcmp(type, "debugfs") != 0)
-                return NULL;
-
-        debugfs_found = true;
-
-        return debugfs_mountpoint;
-}
-
-/* verify that a mountpoint is actually a debugfs instance */
-
-int debugfs_valid_mountpoint(const char *debugfs)
-{
-        struct statfs st_fs;
-
-        if (statfs(debugfs, &st_fs) < 0)
-                return -ENOENT;
-        else if ((long)st_fs.f_type != (long)DEBUGFS_MAGIC)
-                return -ENOENT;
-
-        return 0;
+        return ret;
 }
 
 /* mount the debugfs somewhere if it's not mounted */
@@ -87,7 +62,7 @@ char *debugfs_mount(const char *mountpoint)
                 mountpoint = getenv(PERF_DEBUGFS_ENVIRONMENT);
                 /* if no environment variable, use default */
                 if (mountpoint == NULL)
-                        mountpoint = "/sys/kernel/debug";
+                        mountpoint = DEBUGFS_DEFAULT_PATH;
         }
 
         if (mount(NULL, mountpoint, "debugfs", 0, NULL) < 0)
diff --git a/tools/lib/api/fs/debugfs.h b/tools/lib/api/fs/debugfs.h
index 0739881a9897..455023698d2b 100644
--- a/tools/lib/api/fs/debugfs.h
+++ b/tools/lib/api/fs/debugfs.h
@@ -1,16 +1,7 @@
 #ifndef __API_DEBUGFS_H__
 #define __API_DEBUGFS_H__
 
-#define _STR(x) #x
-#define STR(x) _STR(x)
-
-/*
- * On most systems <limits.h> would have given us this, but  not on some systems
- * (e.g. GNU/Hurd).
- */
-#ifndef PATH_MAX
-#define PATH_MAX 4096
-#endif
+#include "findfs.h"
 
 #ifndef DEBUGFS_MAGIC
 #define DEBUGFS_MAGIC          0x64626720
@@ -20,8 +11,8 @@
 #define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
 #endif
 
+bool debugfs_configured(void);
 const char *debugfs_find_mountpoint(void);
-int debugfs_valid_mountpoint(const char *debugfs);
 char *debugfs_mount(const char *mountpoint);
 
 extern char debugfs_mountpoint[];
diff --git a/tools/lib/api/fs/findfs.c b/tools/lib/api/fs/findfs.c
new file mode 100644
index 000000000000..49946cb6d7af
--- /dev/null
+++ b/tools/lib/api/fs/findfs.c
@@ -0,0 +1,63 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <sys/vfs.h>
+
+#include "findfs.h"
+
+/* verify that a mountpoint is actually the type we want */
+
+int valid_mountpoint(const char *mount, long magic)
+{
+        struct statfs st_fs;
+
+        if (statfs(mount, &st_fs) < 0)
+                return -ENOENT;
+        else if ((long)st_fs.f_type != magic)
+                return -ENOENT;
+
+        return 0;
+}
+
+/* find the path to a mounted file system */
+const char *find_mountpoint(const char *fstype, long magic,
+                            char *mountpoint, int len,
+                            const char * const *known_mountpoints)
+{
+        const char * const *ptr;
+        char format[128];
+        char type[100];
+        FILE *fp;
+
+        if (known_mountpoints) {
+                ptr = known_mountpoints;
+                while (*ptr) {
+                        if (valid_mountpoint(*ptr, magic) == 0) {
+                                strncpy(mountpoint, *ptr, len - 1);
+                                mountpoint[len-1] = 0;
+                                return mountpoint;
+                        }
+                        ptr++;
+                }
+        }
+
+        /* give up and parse /proc/mounts */
+        fp = fopen("/proc/mounts", "r");
+        if (fp == NULL)
+                return NULL;
+
+        snprintf(format, 128, "%%*s %%%ds %%99s %%*s %%*d %%*d\n", len);
+
+        while (fscanf(fp, format, mountpoint, type) == 2) {
+                if (strcmp(type, fstype) == 0)
+                        break;
+        }
+        fclose(fp);
+
+        if (strcmp(type, fstype) != 0)
+                return NULL;
+
+        return mountpoint;
+}
diff --git a/tools/lib/api/fs/findfs.h b/tools/lib/api/fs/findfs.h
new file mode 100644
index 000000000000..b6f5d05acc42
--- /dev/null
+++ b/tools/lib/api/fs/findfs.h
@@ -0,0 +1,23 @@
+#ifndef __API_FINDFS_H__
+#define __API_FINDFS_H__
+
+#include <stdbool.h>
+
+#define _STR(x) #x
+#define STR(x) _STR(x)
+
+/*
+ * On most systems <limits.h> would have given us this, but  not on some systems
+ * (e.g. GNU/Hurd).
+ */
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
+const char *find_mountpoint(const char *fstype, long magic,
+                            char *mountpoint, int len,
+                            const char * const *known_mountpoints);
+
+int valid_mountpoint(const char *mount, long magic);
+
+#endif /* __API_FINDFS_H__ */
diff --git a/tools/lib/api/fs/tracefs.c b/tools/lib/api/fs/tracefs.c
new file mode 100644
index 000000000000..e4aa9688b71e
--- /dev/null
+++ b/tools/lib/api/fs/tracefs.c
@@ -0,0 +1,78 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <sys/vfs.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <linux/kernel.h>
+
+#include "tracefs.h"
+
+#ifndef TRACEFS_DEFAULT_PATH
+#define TRACEFS_DEFAULT_PATH            "/sys/kernel/tracing"
+#endif
+
+char tracefs_mountpoint[PATH_MAX + 1] = TRACEFS_DEFAULT_PATH;
+
+static const char * const tracefs_known_mountpoints[] = {
+        TRACEFS_DEFAULT_PATH,
+        "/sys/kernel/debug/tracing",
+        "/tracing",
+        "/trace",
+        0,
+};
+
+static bool tracefs_found;
+
+bool tracefs_configured(void)
+{
+        return tracefs_find_mountpoint() != NULL;
+}
+
+/* find the path to the mounted tracefs */
+const char *tracefs_find_mountpoint(void)
+{
+        const char *ret;
+
+        if (tracefs_found)
+                return (const char *)tracefs_mountpoint;
+
+        ret = find_mountpoint("tracefs", (long) TRACEFS_MAGIC,
+                              tracefs_mountpoint, PATH_MAX + 1,
+                              tracefs_known_mountpoints);
+
+        if (ret)
+                tracefs_found = true;
+
+        return ret;
+}
+
+/* mount the tracefs somewhere if it's not mounted */
+char *tracefs_mount(const char *mountpoint)
+{
+        /* see if it's already mounted */
+        if (tracefs_find_mountpoint())
+                goto out;
+
+        /* if not mounted and no argument */
+        if (mountpoint == NULL) {
+                /* see if environment variable set */
+                mountpoint = getenv(PERF_TRACEFS_ENVIRONMENT);
+                /* if no environment variable, use default */
+                if (mountpoint == NULL)
+                        mountpoint = TRACEFS_DEFAULT_PATH;
+        }
+
+        if (mount(NULL, mountpoint, "tracefs", 0, NULL) < 0)
+                return NULL;
+
+        /* save the mountpoint */
+        tracefs_found = true;
+        strncpy(tracefs_mountpoint, mountpoint, sizeof(tracefs_mountpoint));
+out:
+        return tracefs_mountpoint;
+}
diff --git a/tools/lib/api/fs/tracefs.h b/tools/lib/api/fs/tracefs.h
new file mode 100644
index 000000000000..da780ac49acb
--- /dev/null
+++ b/tools/lib/api/fs/tracefs.h
@@ -0,0 +1,21 @@
+#ifndef __API_TRACEFS_H__
+#define __API_TRACEFS_H__
+
+#include "findfs.h"
+
+#ifndef TRACEFS_MAGIC
+#define TRACEFS_MAGIC          0x74726163
+#endif
+
+#ifndef PERF_TRACEFS_ENVIRONMENT
+#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
+#endif
+
+bool tracefs_configured(void);
+const char *tracefs_find_mountpoint(void);
+int tracefs_valid_mountpoint(const char *debugfs);
+char *tracefs_mount(const char *mountpoint);
+
+extern char tracefs_mountpoint[];
+
+#endif /* __API_DEBUGFS_H__ */
diff --git a/tools/lib/lockdep/Build b/tools/lib/lockdep/Build
new file mode 100644
index 000000000000..6f667355b068
--- /dev/null
+++ b/tools/lib/lockdep/Build
@@ -0,0 +1 @@
+liblockdep-y += common.o lockdep.o preload.o rbtree.o
diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index 4b866c54f624..0c356fb65022 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -35,6 +35,10 @@ bindir = $(prefix)/$(bindir_relative)
 
 export DESTDIR DESTDIR_SQ INSTALL
 
+MAKEFLAGS += --no-print-directory
+
+include ../../scripts/Makefile.include
+
 # copy a bit from Linux kbuild
 
 ifeq ("$(origin V)", "command line")
@@ -44,56 +48,21 @@ ifndef VERBOSE
   VERBOSE = 0
 endif
 
-ifeq ("$(origin O)", "command line")
-  BUILD_OUTPUT := $(O)
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
 endif
 
-ifeq ($(BUILD_SRC),)
-ifneq ($(BUILD_OUTPUT),)
-
-define build_output
-        $(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) \
-        BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
-endef
-
-saved-output := $(BUILD_OUTPUT)
-BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
-$(if $(BUILD_OUTPUT),, \
-     $(error output directory "$(saved-output)" does not exist))
-
-all: sub-make
-
-gui: force
-        $(call build_output, all_cmd)
-
-$(filter-out gui,$(MAKECMDGOALS)): sub-make
-
-sub-make: force
-        $(call build_output, $(MAKECMDGOALS))
-
-
-# Leave processing to above invocation of make
-skip-makefile := 1
-
-endif # BUILD_OUTPUT
-endif # BUILD_SRC
-
-# We process the rest of the Makefile if this is the final invocation of make
-ifeq ($(skip-makefile),)
-
-srctree         := $(realpath $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR)))
-objtree         := $(realpath $(CURDIR))
-src             := $(srctree)
-obj             := $(objtree)
-
-export prefix libdir bindir src obj
-
 # Shell quotes
 libdir_SQ = $(subst ','\'',$(libdir))
 bindir_SQ = $(subst ','\'',$(bindir))
 
-LIB_FILE = liblockdep.a liblockdep.so.$(LIBLOCKDEP_VERSION)
+LIB_IN := $(OUTPUT)liblockdep-in.o
+
 BIN_FILE = lockdep
+LIB_FILE = $(OUTPUT)liblockdep.a $(OUTPUT)liblockdep.so.$(LIBLOCKDEP_VERSION)
 
 CONFIG_INCLUDES =
 CONFIG_LIBS     =
@@ -108,33 +77,23 @@ INCLUDES = -I. -I./uinclude -I./include -I../../include $(CONFIG_INCLUDES)
 
 # Set compile option CFLAGS if not set elsewhere
 CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
+CFLAGS += -fPIC
 
 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 
 ifeq ($(VERBOSE),1)
   Q =
-  print_compile =
-  print_app_build =
-  print_fpic_compile =
   print_shared_lib_compile =
   print_install =
 else
   Q = @
-  print_compile =               echo '  CC                 '$(OBJ);
-  print_app_build =             echo '  BUILD              '$(OBJ);
-  print_fpic_compile =          echo '  CC FPIC            '$(OBJ);
-  print_shared_lib_compile =    echo '  BUILD SHARED LIB   '$(OBJ);
-  print_static_lib_build =      echo '  BUILD STATIC LIB   '$(OBJ);
-  print_install =               echo '  INSTALL     '$1'        to      $(DESTDIR_SQ)$2';
+  print_shared_lib_compile =    echo '  LD       '$(OBJ);
+  print_static_lib_build =      echo '  LD       '$(OBJ);
+  print_install =               echo '  INSTALL  '$1'   to      $(DESTDIR_SQ)$2';
 endif
 
-do_fpic_compile =                                       \
-        ($(print_fpic_compile)                          \
-        $(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)
-
-do_app_build =                                          \
-        ($(print_app_build)                             \
-        $(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))
+export srctree OUTPUT CC LD CFLAGS V
+build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
 do_compile_shared_library =                     \
         ($(print_shared_lib_compile)            \
@@ -144,22 +103,6 @@ do_build_static_lib =				\
         ($(print_static_lib_build)              \
         $(RM) $@;  $(AR) rcs $@ $^)
 
-
-define do_compile
-        $(print_compile)                                                \
-        $(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
-endef
-
-$(obj)/%.o: $(src)/%.c
-        $(Q)$(call do_compile)
-
-%.o: $(src)/%.c
-        $(Q)$(call do_compile)
-
-PEVENT_LIB_OBJS = common.o lockdep.o preload.o rbtree.o
-
-ALL_OBJS = $(PEVENT_LIB_OBJS)
-
 CMD_TARGETS = $(LIB_FILE)
 
 TARGETS = $(CMD_TARGETS)
@@ -169,42 +112,15 @@ all: all_cmd
 
 all_cmd: $(CMD_TARGETS)
 
-liblockdep.so.$(LIBLOCKDEP_VERSION): $(PEVENT_LIB_OBJS)
+$(LIB_IN): force
+        $(Q)$(MAKE) $(build)=liblockdep
+
+liblockdep.so.$(LIBLOCKDEP_VERSION): $(LIB_IN)
         $(Q)$(do_compile_shared_library)
 
-liblockdep.a: $(PEVENT_LIB_OBJS)
+liblockdep.a: $(LIB_IN)
         $(Q)$(do_build_static_lib)
 
-$(PEVENT_LIB_OBJS): %.o: $(src)/%.c
-        $(Q)$(do_fpic_compile)
-
-## make deps
-
-all_objs := $(sort $(ALL_OBJS))
-all_deps := $(all_objs:%.o=.%.d)
-
-# let .d file also depends on the source and header files
-define check_deps
-                @set -e; $(RM) $@; \
-                $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
-                sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
-                $(RM) $@.$$$$
-endef
-
-$(all_deps): .%.d: $(src)/%.c
-        $(Q)$(call check_deps)
-
-$(all_objs) : %.o : .%.d
-
-dep_includes := $(wildcard $(all_deps))
-
-ifneq ($(dep_includes),)
- include $(dep_includes)
-endif
-
-### Detect environment changes
-TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
-
 tags:   force
         $(RM) tags
         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
@@ -233,8 +149,6 @@ clean:
         $(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d
         $(RM) tags TAGS
 
-endif # skip-makefile
-
 PHONY += force
 force:
 
diff --git a/tools/lib/traceevent/Build b/tools/lib/traceevent/Build
new file mode 100644
index 000000000000..c681d0575d16
--- /dev/null
+++ b/tools/lib/traceevent/Build
@@ -0,0 +1,17 @@
+libtraceevent-y += event-parse.o
+libtraceevent-y += event-plugin.o
+libtraceevent-y += trace-seq.o
+libtraceevent-y += parse-filter.o
+libtraceevent-y += parse-utils.o
+libtraceevent-y += kbuffer-parse.o
+
+plugin_jbd2-y         += plugin_jbd2.o
+plugin_hrtimer-y      += plugin_hrtimer.o
+plugin_kmem-y         += plugin_kmem.o
+plugin_kvm-y          += plugin_kvm.o
+plugin_mac80211-y     += plugin_mac80211.o
+plugin_sched_switch-y += plugin_sched_switch.o
+plugin_function-y     += plugin_function.o
+plugin_xen-y          += plugin_xen.o
+plugin_scsi-y         += plugin_scsi.o
+plugin_cfg80211-y     += plugin_cfg80211.o
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 005c9cc06935..d410da335e3d 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -67,7 +67,7 @@ PLUGIN_DIR = -DPLUGIN_DIR="$(plugin_dir)"
 PLUGIN_DIR_SQ = '$(subst ','\'',$(PLUGIN_DIR))'
 endif
 
-include $(if $(BUILD_SRC),$(BUILD_SRC)/)../../scripts/Makefile.include
+include ../../scripts/Makefile.include
 
 # copy a bit from Linux kbuild
 
@@ -78,40 +78,13 @@ ifndef VERBOSE
   VERBOSE = 0
 endif
 
-ifeq ("$(origin O)", "command line")
-  BUILD_OUTPUT := $(O)
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
 endif
 
-ifeq ($(BUILD_SRC),)
-ifneq ($(OUTPUT),)
-
-define build_output
-  $(if $(VERBOSE:1=),@)+$(MAKE) -C $(OUTPUT) \
-  BUILD_SRC=$(CURDIR)/ -f $(CURDIR)/Makefile $1
-endef
-
-all: sub-make
-
-$(MAKECMDGOALS): sub-make
-
-sub-make: force
-        $(call build_output, $(MAKECMDGOALS))
-
-
-# Leave processing to above invocation of make
-skip-makefile := 1
-
-endif # OUTPUT
-endif # BUILD_SRC
-
-# We process the rest of the Makefile if this is the final invocation of make
-ifeq ($(skip-makefile),)
-
-srctree         := $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
-objtree         := $(CURDIR)
-src             := $(srctree)
-obj             := $(objtree)
-
 export prefix bindir src obj
 
 # Shell quotes
@@ -132,16 +105,19 @@ EXTRAVERSION	= $(EP_EXTRAVERSION)
 OBJ             = $@
 N               =
 
-export Q VERBOSE
-
 EVENT_PARSE_VERSION = $(EP_VERSION).$(EP_PATCHLEVEL).$(EP_EXTRAVERSION)
 
-INCLUDES = -I. -I $(srctree)/../../include $(CONFIG_INCLUDES)
+INCLUDES = -I. -I $(srctree)/tools/include $(CONFIG_INCLUDES)
 
-# Set compile option CFLAGS if not set elsewhere
-CFLAGS ?= -g -Wall
+# Set compile option CFLAGS
+ifdef EXTRA_CFLAGS
+  CFLAGS := $(EXTRA_CFLAGS)
+else
+  CFLAGS := -g -Wall
+endif
 
 # Append required CFLAGS
+override CFLAGS += -fPIC
 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 override CFLAGS += $(udis86-flags) -D_GNU_SOURCE
 
@@ -151,74 +127,58 @@ else
   Q = @
 endif
 
-do_compile_shared_library =                     \
-        ($(print_shared_lib_compile)            \
-        $(CC) --shared $^ -o $@)
-
-do_plugin_build =                               \
-        ($(print_plugin_build)                  \
-        $(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<)
-
-do_build_static_lib =                           \
-        ($(print_static_lib_build)              \
-        $(RM) $@;  $(AR) rcs $@ $^)
-
-
-do_compile = $(QUIET_CC)$(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
+# Disable command line variables (CFLAGS) overide from top
+# level Makefile (perf), otherwise build Makefile will get
+# the same command line setup.
+MAKEOVERRIDES=
 
-$(obj)/%.o: $(src)/%.c
-        $(call do_compile)
+export srctree OUTPUT CC LD CFLAGS V
+build := -f $(srctree)/tools/build/Makefile.build dir=. obj
 
-%.o: $(src)/%.c
-        $(call do_compile)
+PLUGINS  = plugin_jbd2.so
+PLUGINS += plugin_hrtimer.so
+PLUGINS += plugin_kmem.so
+PLUGINS += plugin_kvm.so
+PLUGINS += plugin_mac80211.so
+PLUGINS += plugin_sched_switch.so
+PLUGINS += plugin_function.so
+PLUGINS += plugin_xen.so
+PLUGINS += plugin_scsi.so
+PLUGINS += plugin_cfg80211.so
 
-PEVENT_LIB_OBJS  = event-parse.o
-PEVENT_LIB_OBJS += event-plugin.o
-PEVENT_LIB_OBJS += trace-seq.o
-PEVENT_LIB_OBJS += parse-filter.o
-PEVENT_LIB_OBJS += parse-utils.o
-PEVENT_LIB_OBJS += kbuffer-parse.o
+PLUGINS    := $(addprefix $(OUTPUT),$(PLUGINS))
+PLUGINS_IN := $(PLUGINS:.so=-in.o)
 
-PLUGIN_OBJS  = plugin_jbd2.o
-PLUGIN_OBJS += plugin_hrtimer.o
-PLUGIN_OBJS += plugin_kmem.o
-PLUGIN_OBJS += plugin_kvm.o
-PLUGIN_OBJS += plugin_mac80211.o
-PLUGIN_OBJS += plugin_sched_switch.o
-PLUGIN_OBJS += plugin_function.o
-PLUGIN_OBJS += plugin_xen.o
-PLUGIN_OBJS += plugin_scsi.o
-PLUGIN_OBJS += plugin_cfg80211.o
-
-PLUGINS := $(PLUGIN_OBJS:.o=.so)
-
-ALL_OBJS = $(PEVENT_LIB_OBJS) $(PLUGIN_OBJS)
+TE_IN    := $(OUTPUT)libtraceevent-in.o
+LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
 
 CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
 
 TARGETS = $(CMD_TARGETS)
 
-
 all: all_cmd
 
 all_cmd: $(CMD_TARGETS)
 
-libtraceevent.so: $(PEVENT_LIB_OBJS)
+$(TE_IN): force
+        $(Q)$(MAKE) $(build)=libtraceevent
+
+$(OUTPUT)libtraceevent.so: $(TE_IN)
         $(QUIET_LINK)$(CC) --shared $^ -o $@
 
-libtraceevent.a: $(PEVENT_LIB_OBJS)
+$(OUTPUT)libtraceevent.a: $(TE_IN)
         $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
 
 plugins: $(PLUGINS)
 
-$(PEVENT_LIB_OBJS): %.o: $(src)/%.c TRACEEVENT-CFLAGS
-        $(QUIET_CC_FPIC)$(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@
+__plugin_obj = $(notdir $@)
+  plugin_obj = $(__plugin_obj:-in.o=)
 
-$(PLUGIN_OBJS): %.o : $(src)/%.c
-        $(QUIET_CC_FPIC)$(CC) -c $(CFLAGS) -fPIC -o $@ $<
+$(PLUGINS_IN): force
+        $(Q)$(MAKE) $(build)=$(plugin_obj)
 
-$(PLUGINS): %.so: %.o
-        $(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $<
+$(OUTPUT)%.so: $(OUTPUT)%-in.o
+        $(QUIET_LINK)$(CC) $(CFLAGS) -shared -nostartfiles -o $@ $^
 
 define make_version.h
   (echo '/* This file is automatically generated. Do not modify. */';           \
@@ -255,40 +215,6 @@ define update_dir
    fi);
 endef
 
-## make deps
-
-all_objs := $(sort $(ALL_OBJS))
-all_deps := $(all_objs:%.o=.%.d)
-
-# let .d file also depends on the source and header files
-define check_deps
-  @set -e; $(RM) $@; \
-  $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
-  sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
-  $(RM) $@.$$$$
-endef
-
-$(all_deps): .%.d: $(src)/%.c
-        $(Q)$(call check_deps)
-
-$(all_objs) : %.o : .%.d
-
-dep_includes := $(wildcard $(all_deps))
-
-ifneq ($(dep_includes),)
- include $(dep_includes)
-endif
-
-### Detect environment changes
-TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
-
-TRACEEVENT-CFLAGS: force
-        @FLAGS='$(TRACK_CFLAGS)'; \
-            if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
-                echo 1>&2 "  FLAGS:   * new build flags or cross compiler"; \
-                echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
-            fi
-
 tags:   force
         $(RM) tags
         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
@@ -327,14 +253,9 @@ clean:
                 $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
                 $(RM) TRACEEVENT-CFLAGS tags TAGS
 
-endif # skip-makefile
-
 PHONY += force plugins
 force:
 
-plugins:
-        @echo > /dev/null
-
 # Declare the contents of the .PHONY variable as phony.  We keep that
 # information in a variable so we can use it in if_changed and friends.
 .PHONY: $(PHONY)
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 2c0bd8f2aad0..e0917c0f5d9f 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -304,7 +304,10 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid)
         if (!item)
                 return -1;
 
-        item->comm = strdup(comm);
+        if (comm)
+                item->comm = strdup(comm);
+        else
+                item->comm = strdup("<...>");
         if (!item->comm) {
                 free(item);
                 return -1;
@@ -318,9 +321,14 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid)
         return 0;
 }
 
-void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock)
+int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock)
 {
-        pevent->trace_clock = trace_clock;
+        pevent->trace_clock = strdup(trace_clock);
+        if (!pevent->trace_clock) {
+                errno = ENOMEM;
+                return -1;
+        }
+        return 0;
 }
 
 struct func_map {
@@ -758,6 +766,11 @@ static void free_arg(struct print_arg *arg)
                 free_arg(arg->hex.field);
                 free_arg(arg->hex.size);
                 break;
+        case PRINT_INT_ARRAY:
+                free_arg(arg->int_array.field);
+                free_arg(arg->int_array.count);
+                free_arg(arg->int_array.el_size);
+                break;
         case PRINT_TYPE:
                 free(arg->typecast.type);
                 free_arg(arg->typecast.item);
@@ -1926,7 +1939,22 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
                         goto out_warn_free;
 
                 type = process_arg_token(event, right, tok, type);
-                arg->op.right = right;
+
+                if (right->type == PRINT_OP &&
+                    get_op_prio(arg->op.op) < get_op_prio(right->op.op)) {
+                        struct print_arg tmp;
+
+                        /* rotate ops according to the priority */
+                        arg->op.right = right->op.left;
+
+                        tmp = *arg;
+                        *arg = *right;
+                        *right = tmp;
+
+                        arg->op.left = right;
+                } else {
+                        arg->op.right = right;
+                }
 
         } else if (strcmp(token, "[") == 0) {
 
@@ -2014,6 +2042,38 @@ process_entry(struct event_format *event __maybe_unused, struct print_arg *arg,
         return EVENT_ERROR;
 }
 
+static int alloc_and_process_delim(struct event_format *event, char *next_token,
+                                   struct print_arg **print_arg)
+{
+        struct print_arg *field;
+        enum event_type type;
+        char *token;
+        int ret = 0;
+
+        field = alloc_arg();
+        if (!field) {
+                do_warning_event(event, "%s: not enough memory!", __func__);
+                errno = ENOMEM;
+                return -1;
+        }
+
+        type = process_arg(event, field, &token);
+
+        if (test_type_token(type, token, EVENT_DELIM, next_token)) {
+                errno = EINVAL;
+                ret = -1;
+                free_arg(field);
+                goto out_free_token;
+        }
+
+        *print_arg = field;
+
+out_free_token:
+        free_token(token);
+
+        return ret;
+}
+
 static char *arg_eval (struct print_arg *arg);
 
 static unsigned long long
@@ -2486,49 +2546,46 @@ out_free:
 static enum event_type
 process_hex(struct event_format *event, struct print_arg *arg, char **tok)
 {
-        struct print_arg *field;
-        enum event_type type;
-        char *token = NULL;
-
         memset(arg, 0, sizeof(*arg));
         arg->type = PRINT_HEX;
 
-        field = alloc_arg();
-        if (!field) {
-                do_warning_event(event, "%s: not enough memory!", __func__);
-                goto out_free;
-        }
+        if (alloc_and_process_delim(event, ",", &arg->hex.field))
+                goto out;
 
-        type = process_arg(event, field, &token);
+        if (alloc_and_process_delim(event, ")", &arg->hex.size))
+                goto free_field;
 
-        if (test_type_token(type, token, EVENT_DELIM, ","))
-                goto out_free;
-
-        arg->hex.field = field;
+        return read_token_item(tok);
 
-        free_token(token);
+free_field:
+        free_arg(arg->hex.field);
+out:
+        *tok = NULL;
+        return EVENT_ERROR;
+}
 
-        field = alloc_arg();
-        if (!field) {
-                do_warning_event(event, "%s: not enough memory!", __func__);
-                *tok = NULL;
-                return EVENT_ERROR;
-        }
+static enum event_type
+process_int_array(struct event_format *event, struct print_arg *arg, char **tok)
+{
+        memset(arg, 0, sizeof(*arg));
+        arg->type = PRINT_INT_ARRAY;
 
-        type = process_arg(event, field, &token);
+        if (alloc_and_process_delim(event, ",", &arg->int_array.field))
+                goto out;
 
-        if (test_type_token(type, token, EVENT_DELIM, ")"))
-                goto out_free;
+        if (alloc_and_process_delim(event, ",", &arg->int_array.count))
+                goto free_field;
 
-        arg->hex.size = field;
+        if (alloc_and_process_delim(event, ")", &arg->int_array.el_size))
+                goto free_size;
 
-        free_token(token);
-        type = read_token_item(tok);
-        return type;
+        return read_token_item(tok);
 
- out_free:
-        free_arg(field);
-        free_token(token);
+free_size:
+        free_arg(arg->int_array.count);
+free_field:
+        free_arg(arg->int_array.field);
+out:
         *tok = NULL;
         return EVENT_ERROR;
 }
@@ -2828,6 +2885,10 @@ process_function(struct event_format *event, struct print_arg *arg,
                 free_token(token);
                 return process_hex(event, arg, tok);
         }
+        if (strcmp(token, "__print_array") == 0) {
+                free_token(token);
+                return process_int_array(event, arg, tok);
+        }
         if (strcmp(token, "__get_str") == 0) {
                 free_token(token);
                 return process_str(event, arg, tok);
@@ -3356,6 +3417,7 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
                 break;
         case PRINT_FLAGS:
         case PRINT_SYMBOL:
+        case PRINT_INT_ARRAY:
         case PRINT_HEX:
                 break;
         case PRINT_TYPE:
@@ -3568,7 +3630,7 @@ static const struct flag flags[] = {
         { "HRTIMER_RESTART", 1 },
 };
 
-static unsigned long long eval_flag(const char *flag)
+static long long eval_flag(const char *flag)
 {
         int i;
 
@@ -3584,7 +3646,7 @@ static unsigned long long eval_flag(const char *flag)
                 if (strcmp(flags[i].name, flag) == 0)
                         return flags[i].value;
 
-        return 0;
+        return -1LL;
 }
 
 static void print_str_to_seq(struct trace_seq *s, const char *format,
@@ -3658,7 +3720,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
         struct print_flag_sym *flag;
         struct format_field *field;
         struct printk_map *printk;
-        unsigned long long val, fval;
+        long long val, fval;
         unsigned long addr;
         char *str;
         unsigned char *hex;
@@ -3717,11 +3779,11 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                 print = 0;
                 for (flag = arg->flags.flags; flag; flag = flag->next) {
                         fval = eval_flag(flag->value);
-                        if (!val && !fval) {
+                        if (!val && fval < 0) {
                                 print_str_to_seq(s, format, len_arg, flag->str);
                                 break;
                         }
-                        if (fval && (val & fval) == fval) {
+                        if (fval > 0 && (val & fval) == fval) {
                                 if (print && arg->flags.delim)
                                         trace_seq_puts(s, arg->flags.delim);
                                 print_str_to_seq(s, format, len_arg, flag->str);
@@ -3766,6 +3828,54 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
                 }
                 break;
 
+        case PRINT_INT_ARRAY: {
+                void *num;
+                int el_size;
+
+                if (arg->int_array.field->type == PRINT_DYNAMIC_ARRAY) {
+                        unsigned long offset;
+                        struct format_field *field =
+                                arg->int_array.field->dynarray.field;
+                        offset = pevent_read_number(pevent,
+                                                    data + field->offset,
+                                                    field->size);
+                        num = data + (offset & 0xffff);
+                } else {
+                        field = arg->int_array.field->field.field;
+                        if (!field) {
+                                str = arg->int_array.field->field.name;
+                                field = pevent_find_any_field(event, str);
+                                if (!field)
+                                        goto out_warning_field;
+                                arg->int_array.field->field.field = field;
+                        }
+                        num = data + field->offset;
+                }
+                len = eval_num_arg(data, size, event, arg->int_array.count);
+                el_size = eval_num_arg(data, size, event,
+                                       arg->int_array.el_size);
+                for (i = 0; i < len; i++) {
+                        if (i)
+                                trace_seq_putc(s, ' ');
+
+                        if (el_size == 1) {
+                                trace_seq_printf(s, "%u", *(uint8_t *)num);
+                        } else if (el_size == 2) {
+                                trace_seq_printf(s, "%u", *(uint16_t *)num);
+                        } else if (el_size == 4) {
+                                trace_seq_printf(s, "%u", *(uint32_t *)num);
+                        } else if (el_size == 8) {
+                                trace_seq_printf(s, "%lu", *(uint64_t *)num);
+                        } else {
+                                trace_seq_printf(s, "BAD SIZE:%d 0x%x",
+                                                 el_size, *(uint8_t *)num);
+                                el_size = 1;
+                        }
+
+                        num += el_size;
+                }
+                break;
+        }
         case PRINT_TYPE:
                 break;
         case PRINT_STRING: {
@@ -3997,6 +4107,10 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
                                 goto process_again;
                         case '.':
                                 goto process_again;
+                        case 'z':
+                        case 'Z':
+                                ls = 1;
+                                goto process_again;
                         case 'p':
                                 ls = 1;
                                 /* fall through */
@@ -4939,6 +5053,96 @@ const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid)
         return comm;
 }
 
+static struct cmdline *
+pid_from_cmdlist(struct pevent *pevent, const char *comm, struct cmdline *next)
+{
+        struct cmdline_list *cmdlist = (struct cmdline_list *)next;
+
+        if (cmdlist)
+                cmdlist = cmdlist->next;
+        else
+                cmdlist = pevent->cmdlist;
+
+        while (cmdlist && strcmp(cmdlist->comm, comm) != 0)
+                cmdlist = cmdlist->next;
+
+        return (struct cmdline *)cmdlist;
+}
+
+/**
+ * pevent_data_pid_from_comm - return the pid from a given comm
+ * @pevent: a handle to the pevent
+ * @comm: the cmdline to find the pid from
+ * @next: the cmdline structure to find the next comm
+ *
+ * This returns the cmdline structure that holds a pid for a given
+ * comm, or NULL if none found. As there may be more than one pid for
+ * a given comm, the result of this call can be passed back into
+ * a recurring call in the @next paramater, and then it will find the
+ * next pid.
+ * Also, it does a linear seach, so it may be slow.
+ */
+struct cmdline *pevent_data_pid_from_comm(struct pevent *pevent, const char *comm,
+                                          struct cmdline *next)
+{
+        struct cmdline *cmdline;
+
+        /*
+         * If the cmdlines have not been converted yet, then use
+         * the list.
+         */
+        if (!pevent->cmdlines)
+                return pid_from_cmdlist(pevent, comm, next);
+
+        if (next) {
+                /*
+                 * The next pointer could have been still from
+                 * a previous call before cmdlines were created
+                 */
+                if (next < pevent->cmdlines ||
+                    next >= pevent->cmdlines + pevent->cmdline_count)
+                        next = NULL;
+                else
+                        cmdline  = next++;
+        }
+
+        if (!next)
+                cmdline = pevent->cmdlines;
+
+        while (cmdline < pevent->cmdlines + pevent->cmdline_count) {
+                if (strcmp(cmdline->comm, comm) == 0)
+                        return cmdline;
+                cmdline++;
+        }
+        return NULL;
+}
+
+/**
+ * pevent_cmdline_pid - return the pid associated to a given cmdline
+ * @cmdline: The cmdline structure to get the pid from
+ *
+ * Returns the pid for a give cmdline. If @cmdline is NULL, then
+ * -1 is returned.
+ */
+int pevent_cmdline_pid(struct pevent *pevent, struct cmdline *cmdline)
+{
+        struct cmdline_list *cmdlist = (struct cmdline_list *)cmdline;
+
+        if (!cmdline)
+                return -1;
+
+        /*
+         * If cmdlines have not been created yet, or cmdline is
+         * not part of the array, then treat it as a cmdlist instead.
+         */
+        if (!pevent->cmdlines ||
+            cmdline < pevent->cmdlines ||
+            cmdline >= pevent->cmdlines + pevent->cmdline_count)
+                return cmdlist->pid;
+
+        return cmdline->pid;
+}
+
 /**
  * pevent_data_comm_from_pid - parse the data into the print format
  * @s: the trace_seq to write to
@@ -5256,6 +5460,15 @@ static void print_args(struct print_arg *args)
                 print_args(args->hex.size);
                 printf(")");
                 break;
+        case PRINT_INT_ARRAY:
+                printf("__print_array(");
+                print_args(args->int_array.field);
+                printf(", ");
+                print_args(args->int_array.count);
+                printf(", ");
+                print_args(args->int_array.el_size);
+                printf(")");
+                break;
         case PRINT_STRING:
         case PRINT_BSTRING:
                 printf("__get_str(%s)", args->string.string);
@@ -6228,15 +6441,20 @@ void pevent_ref(struct pevent *pevent)
         pevent->ref_count++;
 }
 
+void pevent_free_format_field(struct format_field *field)
+{
+        free(field->type);
+        free(field->name);
+        free(field);
+}
+
 static void free_format_fields(struct format_field *field)
 {
         struct format_field *next;
 
         while (field) {
                 next = field->next;
-                free(field->type);
-                free(field->name);
-                free(field);
+                pevent_free_format_field(field);
                 field = next;
         }
 }
@@ -6341,6 +6559,7 @@ void pevent_free(struct pevent *pevent)
                 free_handler(handle);
         }
 
+        free(pevent->trace_clock);
         free(pevent->events);
         free(pevent->sort_events);
 
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 7a3873ff9a4f..86a5839fb048 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -22,6 +22,7 @@
 
 #include <stdbool.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <regex.h>
 #include <string.h>
 
@@ -91,6 +92,7 @@ extern int trace_seq_putc(struct trace_seq *s, unsigned char c);
 
 extern void trace_seq_terminate(struct trace_seq *s);
 
+extern int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp);
 extern int trace_seq_do_printf(struct trace_seq *s);
 
 
@@ -114,7 +116,7 @@ struct pevent_plugin_option {
         char                            *name;
         char                            *plugin_alias;
         char                            *description;
-        char                            *value;
+        const char                      *value;
         void                            *priv;
         int                             set;
 };
@@ -152,6 +154,10 @@ struct pevent_plugin_option {
  *   .plugin_alias is used to give a shorter name to access
  *   the vairable. Useful if a plugin handles more than one event.
  *
+ *   If .value is not set, then it is considered a boolean and only
+ *   .set will be processed. If .value is defined, then it is considered
+ *   a string option and .set will be ignored.
+ *
  * PEVENT_PLUGIN_ALIAS: (optional)
  *   The name to use for finding options (uses filename if not defined)
  */
@@ -245,6 +251,12 @@ struct print_arg_hex {
         struct print_arg        *size;
 };
 
+struct print_arg_int_array {
+        struct print_arg        *field;
+        struct print_arg        *count;
+        struct print_arg        *el_size;
+};
+
 struct print_arg_dynarray {
         struct format_field     *field;
         struct print_arg        *index;
@@ -273,6 +285,7 @@ enum print_arg_type {
         PRINT_FLAGS,
         PRINT_SYMBOL,
         PRINT_HEX,
+        PRINT_INT_ARRAY,
         PRINT_TYPE,
         PRINT_STRING,
         PRINT_BSTRING,
@@ -292,6 +305,7 @@ struct print_arg {
                 struct print_arg_flags          flags;
                 struct print_arg_symbol         symbol;
                 struct print_arg_hex            hex;
+                struct print_arg_int_array      int_array;
                 struct print_arg_func           func;
                 struct print_arg_string         string;
                 struct print_arg_bitmask        bitmask;
@@ -597,7 +611,7 @@ enum trace_flag_type {
 };
 
 int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
-void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock);
+int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock);
 int pevent_register_function(struct pevent *pevent, char *name,
                              unsigned long long addr, char *mod);
 int pevent_register_print_string(struct pevent *pevent, const char *fmt,
@@ -617,6 +631,7 @@ enum pevent_errno pevent_parse_format(struct pevent *pevent,
                                       const char *buf,
                                       unsigned long size, const char *sys);
 void pevent_free_format(struct event_format *event);
+void pevent_free_format_field(struct format_field *field);
 
 void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event,
                            const char *name, struct pevent_record *record,
@@ -675,6 +690,11 @@ int pevent_data_type(struct pevent *pevent, struct pevent_record *rec);
 struct event_format *pevent_data_event_from_type(struct pevent *pevent, int type);
 int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
 const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
+struct cmdline;
+struct cmdline *pevent_data_pid_from_comm(struct pevent *pevent, const char *comm,
+                                          struct cmdline *next);
+int pevent_cmdline_pid(struct pevent *pevent, struct cmdline *cmdline);
+
 void pevent_event_info(struct trace_seq *s, struct event_format *event,
                        struct pevent_record *record);
 int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
diff --git a/tools/lib/traceevent/event-plugin.c b/tools/lib/traceevent/event-plugin.c
index 136162c03af1..a16756ae3526 100644
--- a/tools/lib/traceevent/event-plugin.c
+++ b/tools/lib/traceevent/event-plugin.c
@@ -18,6 +18,7 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
+#include <ctype.h>
 #include <stdio.h>
 #include <string.h>
 #include <dlfcn.h>
@@ -49,6 +50,52 @@ struct plugin_list {
         void                    *handle;
 };
 
+static void lower_case(char *str)
+{
+        if (!str)
+                return;
+        for (; *str; str++)
+                *str = tolower(*str);
+}
+
+static int update_option_value(struct pevent_plugin_option *op, const char *val)
+{
+        char *op_val;
+
+        if (!val) {
+                /* toggle, only if option is boolean */
+                if (op->value)
+                        /* Warn? */
+                        return 0;
+                op->set ^= 1;
+                return 0;
+        }
+
+        /*
+         * If the option has a value then it takes a string
+         * otherwise the option is a boolean.
+         */
+        if (op->value) {
+                op->value = val;
+                return 0;
+        }
+
+        /* Option is boolean, must be either "1", "0", "true" or "false" */
+
+        op_val = strdup(val);
+        if (!op_val)
+                return -1;
+        lower_case(op_val);
+
+        if (strcmp(val, "1") == 0 || strcmp(val, "true") == 0)
+                op->set = 1;
+        else if (strcmp(val, "0") == 0 || strcmp(val, "false") == 0)
+                op->set = 0;
+        free(op_val);
+
+        return 0;
+}
+
 /**
  * traceevent_plugin_list_options - get list of plugin options
  *
@@ -120,6 +167,7 @@ update_option(const char *file, struct pevent_plugin_option *option)
 {
         struct trace_plugin_options *op;
         char *plugin;
+        int ret = 0;
 
         if (option->plugin_alias) {
                 plugin = strdup(option->plugin_alias);
@@ -144,9 +192,10 @@ update_option(const char *file, struct pevent_plugin_option *option)
                 if (strcmp(op->option, option->name) != 0)
                         continue;
 
-                option->value = op->value;
-                option->set ^= 1;
-                goto out;
+                ret = update_option_value(option, op->value);
+                if (ret)
+                        goto out;
+                break;
         }
 
         /* first look for unnamed options */
@@ -156,14 +205,13 @@ update_option(const char *file, struct pevent_plugin_option *option)
                 if (strcmp(op->option, option->name) != 0)
                         continue;
 
-                option->value = op->value;
-                option->set ^= 1;
+                ret = update_option_value(option, op->value);
                 break;
         }
 
  out:
         free(plugin);
-        return 0;
+        return ret;
 }
 
 /**
diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c
index dcc665228c71..3bcada3ae05a 100644
--- a/tools/lib/traceevent/kbuffer-parse.c
+++ b/tools/lib/traceevent/kbuffer-parse.c
@@ -372,7 +372,6 @@ translate_data(struct kbuffer *kbuf, void *data, void **rptr,
         switch (type_len) {
         case KBUFFER_TYPE_PADDING:
                 *length = read_4(kbuf, data);
-                data += *length;
                 break;
 
         case KBUFFER_TYPE_TIME_EXTEND:
@@ -730,3 +729,14 @@ void kbuffer_set_old_format(struct kbuffer *kbuf)
 
         kbuf->next_event = __old_next_event;
 }
+
+/**
+ * kbuffer_start_of_data - return offset of where data starts on subbuffer
+ * @kbuf:       The kbuffer
+ *
+ * Returns the location on the subbuffer where the data starts.
+ */
+int kbuffer_start_of_data(struct kbuffer *kbuf)
+{
+        return kbuf->start;
+}
diff --git a/tools/lib/traceevent/kbuffer.h b/tools/lib/traceevent/kbuffer.h
index c831f64b17a0..03dce757553f 100644
--- a/tools/lib/traceevent/kbuffer.h
+++ b/tools/lib/traceevent/kbuffer.h
@@ -63,5 +63,6 @@ int kbuffer_missed_events(struct kbuffer *kbuf);
 int kbuffer_subbuffer_size(struct kbuffer *kbuf);
 
 void kbuffer_set_old_format(struct kbuffer *kbuf);
+int kbuffer_start_of_data(struct kbuffer *kbuf);
 
 #endif /* _K_BUFFER_H */
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index b50234402fc2..0144b3d1bb77 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -1058,6 +1058,7 @@ process_filter(struct event_format *event, struct filter_arg **parg,
                                         *parg = current_op;
                                 else
                                         *parg = current_exp;
+                                free(token);
                                 return PEVENT_ERRNO__UNBALANCED_PAREN;
                         }
                         break;
@@ -1168,6 +1169,7 @@ process_filter(struct event_format *event, struct filter_arg **parg,
 
         *parg = current_op;
 
+        free(token);
         return 0;
 
  fail_alloc:
diff --git a/tools/lib/traceevent/trace-seq.c b/tools/lib/traceevent/trace-seq.c
index ec3bd16a5488..292dc9f1d233 100644
--- a/tools/lib/traceevent/trace-seq.c
+++ b/tools/lib/traceevent/trace-seq.c
@@ -231,19 +231,24 @@ void trace_seq_terminate(struct trace_seq *s)
         s->buffer[s->len] = 0;
 }
 
-int trace_seq_do_printf(struct trace_seq *s)
+int trace_seq_do_fprintf(struct trace_seq *s, FILE *fp)
 {
         TRACE_SEQ_CHECK(s);
 
         switch (s->state) {
         case TRACE_SEQ__GOOD:
-                return printf("%.*s", s->len, s->buffer);
+                return fprintf(fp, "%.*s", s->len, s->buffer);
         case TRACE_SEQ__BUFFER_POISONED:
-                puts("Usage of trace_seq after it was destroyed");
+                fprintf(fp, "%s\n", "Usage of trace_seq after it was destroyed");
                 break;
         case TRACE_SEQ__MEM_ALLOC_FAILED:
-                puts("Can't allocate trace_seq buffer memory");
+                fprintf(fp, "%s\n", "Can't allocate trace_seq buffer memory");
                 break;
         }
         return -1;
 }
+
+int trace_seq_do_printf(struct trace_seq *s)
+{
+        return trace_seq_do_fprintf(s, stdout);
+}