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

Pull perf fixes from Ingo Molnar:
 "Assorted small fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf python: Properly link with libtraceevent
  perf hists browser: Add back callchain folding symbol
  perf tools: Fix build on sparc.
  perf python: Link with libtraceevent
  perf python: Initialize 'page_size' variable
  tools lib traceevent: Fix missed freeing of subargs in free_arg() in filter
  lib tools traceevent: Add back pevent assignment in __pevent_parse_format()
  perf hists browser: Fix off-by-two bug on the first column
  perf tools: Remove warnings on JIT samples for srcline sort key
  perf tools: Fix segfault when using srcline sort key
  perf: Require exclude_guest to use PEBS - kernel side enforcement
  perf tool: Precise mode requires exclude_guest

9 files changed, 56 insertions, 17 deletions

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 915b876edd1e..3373f84d1397 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -338,6 +338,9 @@ int x86_setup_perfctr(struct perf_event *event)
                 /* BTS is currently only allowed for user-mode. */
                 if (!attr->exclude_kernel)
                         return -EOPNOTSUPP;
+
+                if (!attr->exclude_guest)
+                        return -EOPNOTSUPP;
         }
 
         hwc->config |= config;
@@ -380,6 +383,9 @@ int x86_pmu_hw_config(struct perf_event *event)
         if (event->attr.precise_ip) {
                 int precise = 0;
 
+                if (!event->attr.exclude_guest)
+                        return -EOPNOTSUPP;
+
                 /* Support for constant skid */
                 if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
                         precise++;
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 47264b4652b9..f2989c525e48 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -2602,6 +2602,9 @@ find_func_handler(struct pevent *pevent, char *func_name)
 {
         struct pevent_function_handler *func;
 
+        if (!pevent)
+                return NULL;
+
         for (func = pevent->func_handlers; func; func = func->next) {
                 if (strcmp(func->name, func_name) == 0)
                         break;
@@ -4938,6 +4941,9 @@ enum pevent_errno __pevent_parse_format(struct event_format **eventp,
                 goto event_alloc_failed;
         }
 
+        /* Add pevent to event so that it can be referenced */
+        event->pevent = pevent;
+
         ret = event_read_format(event);
         if (ret < 0) {
                 ret = PEVENT_ERRNO__READ_FORMAT_FAILED;
@@ -5041,9 +5047,6 @@ enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
         if (event == NULL)
                 return ret;
 
-        /* Add pevent to event so that it can be referenced */
-        event->pevent = pevent;
-
         if (add_event(pevent, event)) {
                 ret = PEVENT_ERRNO__MEM_ALLOC_FAILED;
                 goto event_add_failed;
diff --git a/tools/lib/traceevent/parse-filter.c b/tools/lib/traceevent/parse-filter.c
index ad17855528f9..5ea4326ad11f 100644
--- a/tools/lib/traceevent/parse-filter.c
+++ b/tools/lib/traceevent/parse-filter.c
@@ -209,7 +209,16 @@ static void free_arg(struct filter_arg *arg)
         switch (arg->type) {
         case FILTER_ARG_NONE:
         case FILTER_ARG_BOOLEAN:
+                break;
+
         case FILTER_ARG_NUM:
+                free_arg(arg->num.left);
+                free_arg(arg->num.right);
+                break;
+
+        case FILTER_ARG_EXP:
+                free_arg(arg->exp.left);
+                free_arg(arg->exp.right);
                 break;
 
         case FILTER_ARG_STR:
@@ -218,6 +227,12 @@ static void free_arg(struct filter_arg *arg)
                 free(arg->str.buffer);
                 break;
 
+        case FILTER_ARG_VALUE:
+                if (arg->value.type == FILTER_STRING ||
+                    arg->value.type == FILTER_CHAR)
+                        free(arg->value.str);
+                break;
+
         case FILTER_ARG_OP:
                 free_arg(arg->op.left);
                 free_arg(arg->op.right);
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index f7c968ad5178..00deed4d6159 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -184,9 +184,22 @@ SCRIPT_SH += perf-archive.sh
 grep-libs = $(filter -l%,$(1))
 strip-libs = $(filter-out -l%,$(1))
 
+TRACE_EVENT_DIR = ../lib/traceevent/
+
+ifneq ($(OUTPUT),)
+        TE_PATH=$(OUTPUT)
+else
+        TE_PATH=$(TRACE_EVENT_DIR)
+endif
+
+LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
+TE_LIB := -L$(TE_PATH) -ltraceevent
+
 PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
 PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py
 
+export LIBTRACEEVENT
+
 $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
         $(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
           --quiet build_ext; \
@@ -198,17 +211,6 @@ $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
 
 SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))
 
-TRACE_EVENT_DIR = ../lib/traceevent/
-
-ifneq ($(OUTPUT),)
-        TE_PATH=$(OUTPUT)
-else
-        TE_PATH=$(TRACE_EVENT_DIR)
-endif
-
-LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
-TE_LIB := -L$(TE_PATH) -ltraceevent
-
 #
 # Single 'perf' binary right now:
 #
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 276287783a03..c50985eaec41 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -57,7 +57,7 @@ void get_term_dimensions(struct winsize *ws);
 #endif
 
 #ifdef __sparc__
-#include "../../arch/sparc/include/asm/unistd.h"
+#include "../../arch/sparc/include/uapi/asm/unistd.h"
 #define rmb()           asm volatile("":::"memory")
 #define cpu_relax()     asm volatile("":::"memory")
 #define CPUINFO_PROC    "cpu"
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 0568536ecf67..ef2f93ca7496 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -610,6 +610,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
         char folded_sign = ' ';
         bool current_entry = ui_browser__is_current_entry(&browser->b, row);
         off_t row_offset = entry->row_offset;
+        bool first = true;
 
         if (current_entry) {
                 browser->he_selection = entry;
@@ -633,10 +634,11 @@ static int hist_browser__show_entry(struct hist_browser *browser,
                         if (!perf_hpp__format[i].cond)
                                 continue;
 
-                        if (i) {
+                        if (!first) {
                                 slsmg_printf("  ");
                                 width -= 2;
                         }
+                        first = false;
 
                         if (perf_hpp__format[i].color) {
                                 hpp.ptr = &percent;
@@ -645,7 +647,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
 
                                 ui_browser__set_percent_color(&browser->b, percent, current_entry);
 
-                                if (i == 0 && symbol_conf.use_callchain) {
+                                if (i == PERF_HPP__OVERHEAD && symbol_conf.use_callchain) {
                                         slsmg_printf("%c ", folded_sign);
                                         width -= 2;
                                 }
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index aed38e4b9dfa..75c7b0fca6d9 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -690,6 +690,9 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
                         eH = 0;
                 } else if (*str == 'p') {
                         precise++;
+                        /* use of precise requires exclude_guest */
+                        if (!exclude_GH)
+                                eG = 1;
                 } else
                         break;
 
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index d0f9f29cf181..73d510269784 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -23,6 +23,7 @@ cflags += getenv('CFLAGS', '').split()
 
 build_lib = getenv('PYTHON_EXTBUILD_LIB')
 build_tmp = getenv('PYTHON_EXTBUILD_TMP')
+libtraceevent = getenv('LIBTRACEEVENT')
 
 ext_sources = [f.strip() for f in file('util/python-ext-sources')
                                 if len(f.strip()) > 0 and f[0] != '#']
@@ -31,6 +32,7 @@ perf = Extension('perf',
                   sources = ext_sources,
                   include_dirs = ['util/include'],
                   extra_compile_args = cflags,
+                  extra_objects = [libtraceevent],
                  )
 
 setup(name='perf',
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index b5b1b9211960..cfd1c0feb32d 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -260,6 +260,12 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
         if (path != NULL)
                 goto out_path;
 
+        if (!self->ms.map)
+                goto out_ip;
+
+        if (!strncmp(self->ms.map->dso->long_name, "/tmp/perf-", 10))
+                goto out_ip;
+
         snprintf(cmd, sizeof(cmd), "addr2line -e %s %016" PRIx64,
                  self->ms.map->dso->long_name, self->ip);
         fp = popen(cmd, "r");