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perf/core improvements and fixes 

. Fix build for another rbtree.c change, from Adrian Hunter.
 
  . Fixes for perf to build on Android, from Irina Tirdea.
 
  . Make 'perf diff' command work with evsel hists, from Jiri Olsa.
 
  . Use the only field_sep var that is set up: symbol_conf.field_sep,
    fix from Jiri Olsa.
 
  . .gitignore compiled python binaries, from Namhyung Kim.
 
  . Get rid of die() in more libtraceevent places, from Namhyung Kim.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

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

 * Fix build for another rbtree.c change, from Adrian Hunter.

 * Fixes for perf to build on Android, from Irina Tirdea.

 * Make 'perf diff' command work with evsel hists, from Jiri Olsa.

 * Use the only field_sep var that is set up: symbol_conf.field_sep,
   fix from Jiri Olsa.

 * .gitignore compiled python binaries, from Namhyung Kim.

 * Get rid of die() in more libtraceevent places, from Namhyung Kim.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2012-09-08 13:26:02 +02:00
parent 479d875835 b155a09015
commit ef34eb4da3
19 changed files with 180 additions and 63 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

86
tools/lib/traceevent/event-parse.c
View File

@ -3889,8 +3889,11 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
goto cont_process;
case '*':
/* The argument is the length. */
if (!arg)
die("no argument match");
if (!arg) {
do_warning("no argument match");
event->flags |= EVENT_FL_FAILED;
goto out_failed;
}
len_arg = eval_num_arg(data, size, event, arg);
len_as_arg = 1;
arg = arg->next;
@ -3923,15 +3926,21 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
case 'x':
case 'X':
case 'u':
if (!arg)
die("no argument match");
if (!arg) {
do_warning("no argument match");
event->flags |= EVENT_FL_FAILED;
goto out_failed;
}
len = ((unsigned long)ptr + 1) -
(unsigned long)saveptr;
/* should never happen */
if (len > 31)
die("bad format!");
if (len > 31) {
do_warning("bad format!");
event->flags |= EVENT_FL_FAILED;
len = 31;
}
memcpy(format, saveptr, len);
format[len] = 0;
@ -3995,19 +4004,26 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
trace_seq_printf(s, format, (long long)val);
break;
default:
die("bad count (%d)", ls);
do_warning("bad count (%d)", ls);
event->flags |= EVENT_FL_FAILED;
}
break;
case 's':
if (!arg)
die("no matching argument");
if (!arg) {
do_warning("no matching argument");
event->flags |= EVENT_FL_FAILED;
goto out_failed;
}
len = ((unsigned long)ptr + 1) -
(unsigned long)saveptr;
/* should never happen */
if (len > 31)
die("bad format!");
if (len > 31) {
do_warning("bad format!");
event->flags |= EVENT_FL_FAILED;
len = 31;
}
memcpy(format, saveptr, len);
format[len] = 0;
@ -4025,6 +4041,11 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
trace_seq_putc(s, *ptr);
}
if (event->flags & EVENT_FL_FAILED) {
out_failed:
trace_seq_printf(s, "[FAILED TO PARSE]");
}
if (args) {
free_args(args);
free(bprint_fmt);
@ -4812,8 +4833,8 @@ int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
msg = strerror_r(errnum, buf, buflen);
if (msg != buf) {
size_t len = strlen(msg);
char *c = mempcpy(buf, msg, min(buflen-1, len));
*c = '\0';
memcpy(buf, msg, min(buflen - 1, len));
*(buf + min(buflen - 1, len)) = '\0';
}
return 0;
}
@ -5059,6 +5080,7 @@ int pevent_register_print_function(struct pevent *pevent,
struct pevent_func_params *param;
enum pevent_func_arg_type type;
va_list ap;
int ret;
func_handle = find_func_handler(pevent, name);
if (func_handle) {
@ -5071,14 +5093,21 @@ int pevent_register_print_function(struct pevent *pevent,
remove_func_handler(pevent, name);
}
func_handle = malloc_or_die(sizeof(*func_handle));
func_handle = malloc(sizeof(*func_handle));
if (!func_handle) {
do_warning("Failed to allocate function handler");
return PEVENT_ERRNO__MEM_ALLOC_FAILED;
}
memset(func_handle, 0, sizeof(*func_handle));
func_handle->ret_type = ret_type;
func_handle->name = strdup(name);
func_handle->func = func;
if (!func_handle->name)
die("Failed to allocate function name");
if (!func_handle->name) {
do_warning("Failed to allocate function name");
free(func_handle);
return PEVENT_ERRNO__MEM_ALLOC_FAILED;
}
next_param = &(func_handle->params);
va_start(ap, name);
@ -5088,11 +5117,17 @@ int pevent_register_print_function(struct pevent *pevent,
break;
if (type < 0 || type >= PEVENT_FUNC_ARG_MAX_TYPES) {
warning("Invalid argument type %d", type);
do_warning("Invalid argument type %d", type);
ret = PEVENT_ERRNO__INVALID_ARG_TYPE;
goto out_free;
}
param = malloc_or_die(sizeof(*param));
param = malloc(sizeof(*param));
if (!param) {
do_warning("Failed to allocate function param");
ret = PEVENT_ERRNO__MEM_ALLOC_FAILED;
goto out_free;
}
param->type = type;
param->next = NULL;
@ -5110,7 +5145,7 @@ int pevent_register_print_function(struct pevent *pevent,
out_free:
va_end(ap);
free_func_handle(func_handle);
return -1;
return ret;
}
/**
@ -5162,7 +5197,12 @@ int pevent_register_event_handler(struct pevent *pevent,
not_found:
/* Save for later use. */
handle = malloc_or_die(sizeof(*handle));
handle = malloc(sizeof(*handle));
if (!handle) {
do_warning("Failed to allocate event handler");
return PEVENT_ERRNO__MEM_ALLOC_FAILED;
}
memset(handle, 0, sizeof(*handle));
handle->id = id;
if (event_name)
@ -5172,7 +5212,11 @@ int pevent_register_event_handler(struct pevent *pevent,
if ((event_name && !handle->event_name) ||
(sys_name && !handle->sys_name)) {
die("Failed to allocate event/sys name");
do_warning("Failed to allocate event/sys name");
free((void *)handle->event_name);
free((void *)handle->sys_name);
free(handle);
return PEVENT_ERRNO__MEM_ALLOC_FAILED;
}
handle->func = func;

3
tools/lib/traceevent/event-parse.h
View File

@ -351,7 +351,8 @@ enum pevent_flag {
_PE(READ_ID_FAILED, "failed to read event id"), \
_PE(READ_FORMAT_FAILED, "failed to read event format"), \
_PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
_PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace")
_PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
_PE(INVALID_ARG_TYPE, "invalid argument type")
#undef _PE
#define _PE(__code, __str) PEVENT_ERRNO__ ## __code

2
tools/perf/.gitignore vendored
View File

@ -21,3 +21,5 @@ config.mak
config.mak.autogen
*-bison.*
*-flex.*
*.pyc
*.pyo

3
tools/perf/Documentation/perf-diff.txt
View File

@ -17,6 +17,9 @@ captured via perf record.
If no parameters are passed it will assume perf.data.old and perf.data.
The differential profile is displayed only for events matching both
specified perf.data files.
OPTIONS
-------
-M::

8
tools/perf/Makefile
View File

@ -755,6 +755,14 @@ else
endif
endif
ifdef NO_BACKTRACE
BASIC_CFLAGS += -DNO_BACKTRACE
else
ifneq ($(call try-cc,$(SOURCE_BACKTRACE),),y)
BASIC_CFLAGS += -DNO_BACKTRACE
endif
endif
ifdef ASCIIDOC8
export ASCIIDOC8
endif

93
tools/perf/builtin-diff.c
View File

@ -10,6 +10,7 @@
#include "util/event.h"
#include "util/hist.h"
#include "util/evsel.h"
#include "util/evlist.h"
#include "util/session.h"
#include "util/tool.h"
#include "util/sort.h"
@ -24,11 +25,6 @@ static char diff__default_sort_order[] = "dso,symbol";
static bool force;
static bool show_displacement;
struct perf_diff {
struct perf_tool tool;
struct perf_session *session;
};
static int hists__add_entry(struct hists *self,
struct addr_location *al, u64 period)
{
@ -37,14 +33,12 @@ static int hists__add_entry(struct hists *self,
return -ENOMEM;
}
static int diff__process_sample_event(struct perf_tool *tool,
static int diff__process_sample_event(struct perf_tool *tool __used,
union perf_event *event,
struct perf_sample *sample,
struct perf_evsel *evsel __used,
struct perf_evsel *evsel,
struct machine *machine)
{
struct perf_diff *_diff = container_of(tool, struct perf_diff, tool);
struct perf_session *session = _diff->session;
struct addr_location al;
if (perf_event__preprocess_sample(event, machine, &al, sample, NULL) < 0) {
@ -56,26 +50,24 @@ static int diff__process_sample_event(struct perf_tool *tool,
if (al.filtered || al.sym == NULL)
return 0;
if (hists__add_entry(&session->hists, &al, sample->period)) {
if (hists__add_entry(&evsel->hists, &al, sample->period)) {
pr_warning("problem incrementing symbol period, skipping event\n");
return -1;
}
session->hists.stats.total_period += sample->period;
evsel->hists.stats.total_period += sample->period;
return 0;
}
static struct perf_diff diff = {
.tool = {
.sample = diff__process_sample_event,
.mmap = perf_event__process_mmap,
.comm = perf_event__process_comm,
.exit = perf_event__process_task,
.fork = perf_event__process_task,
.lost = perf_event__process_lost,
.ordered_samples = true,
.ordering_requires_timestamps = true,
},
static struct perf_tool tool = {
.sample = diff__process_sample_event,
.mmap = perf_event__process_mmap,
.comm = perf_event__process_comm,
.exit = perf_event__process_task,
.fork = perf_event__process_task,
.lost = perf_event__process_lost,
.ordered_samples = true,
.ordering_requires_timestamps = true,
};
static void perf_session__insert_hist_entry_by_name(struct rb_root *root,
@ -146,34 +138,71 @@ static void hists__match(struct hists *older, struct hists *newer)
}
}
static struct perf_evsel *evsel_match(struct perf_evsel *evsel,
struct perf_evlist *evlist)
{
struct perf_evsel *e;
list_for_each_entry(e, &evlist->entries, node)
if (perf_evsel__match2(evsel, e))
return e;
return NULL;
}
static int __cmd_diff(void)
{
int ret, i;
#define older (session[0])
#define newer (session[1])
struct perf_session *session[2];
struct perf_evlist *evlist_new, *evlist_old;
struct perf_evsel *evsel;
bool first = true;
older = perf_session__new(input_old, O_RDONLY, force, false,
&diff.tool);
&tool);
newer = perf_session__new(input_new, O_RDONLY, force, false,
&diff.tool);
&tool);
if (session[0] == NULL || session[1] == NULL)
return -ENOMEM;
for (i = 0; i < 2; ++i) {
diff.session = session[i];
ret = perf_session__process_events(session[i], &diff.tool);
ret = perf_session__process_events(session[i], &tool);
if (ret)
goto out_delete;
hists__output_resort(&session[i]->hists);
}
if (show_displacement)
hists__resort_entries(&older->hists);
evlist_old = older->evlist;
evlist_new = newer->evlist;
list_for_each_entry(evsel, &evlist_new->entries, node)
hists__output_resort(&evsel->hists);
list_for_each_entry(evsel, &evlist_old->entries, node) {
hists__output_resort(&evsel->hists);
if (show_displacement)
hists__resort_entries(&evsel->hists);
}
list_for_each_entry(evsel, &evlist_new->entries, node) {
struct perf_evsel *evsel_old;
evsel_old = evsel_match(evsel, evlist_old);
if (!evsel_old)
continue;
fprintf(stdout, "%s# Event '%s'\n#\n", first ? "" : "\n",
perf_evsel__name(evsel));
first = false;
hists__match(&evsel_old->hists, &evsel->hists);
hists__fprintf(&evsel->hists, &evsel_old->hists,
show_displacement, true, 0, 0, stdout);
}
hists__match(&older->hists, &newer->hists);
hists__fprintf(&newer->hists, &older->hists,
show_displacement, true, 0, 0, stdout);
out_delete:
for (i = 0; i < 2; ++i)
perf_session__delete(session[i]);

14
tools/perf/config/feature-tests.mak
View File

@ -179,3 +179,17 @@ int main(void)
}
endef
endif
ifndef NO_BACKTRACE
define SOURCE_BACKTRACE
#include <execinfo.h>
#include <stdio.h>
int main(void)
{
backtrace(NULL, 0);
backtrace_symbols(NULL, 0);
return 0;
}
endef
endif

1
tools/perf/perf.c
View File

@ -14,6 +14,7 @@
#include "util/run-command.h"
#include "util/parse-events.h"
#include "util/debugfs.h"
#include <pthread.h>
const char perf_usage_string[] =
"perf [--version] [--help] COMMAND [ARGS]";

1
tools/perf/util/annotate.h
View File

@ -7,6 +7,7 @@
#include "symbol.h"
#include <linux/list.h>
#include <linux/rbtree.h>
#include <pthread.h>
struct ins;

2
tools/perf/util/dso-test-data.c
View File

@ -23,7 +23,7 @@ static char *test_file(int size)
int fd, i;
unsigned char *buf;
fd = mkostemp(templ, O_CREAT|O_WRONLY|O_TRUNC);
fd = mkstemp(templ);
buf = malloc(size);
if (!buf) {

7
tools/perf/util/evsel.h
View File

@ -124,6 +124,13 @@ void perf_evsel__close(struct perf_evsel *evsel, int ncpus, int nthreads);
(evsel->attr.type == PERF_TYPE_##t && \
evsel->attr.config == PERF_COUNT_##c)
static inline bool perf_evsel__match2(struct perf_evsel *e1,
struct perf_evsel *e2)
{
return (e1->attr.type == e2->attr.type) &&
(e1->attr.config == e2->attr.config);
}
int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
int cpu, int thread, bool scale);

1
tools/perf/util/help.c
View File

@ -3,6 +3,7 @@
#include "exec_cmd.h"
#include "levenshtein.h"
#include "help.h"
#include <termios.h>
void add_cmdname(struct cmdnames *cmds, const char *name, size_t len)
{

1
tools/perf/util/include/linux/rbtree.h
View File

@ -1 +1,2 @@
#include <stdbool.h>
#include "../../../../include/linux/rbtree.h"

4
tools/perf/util/session.h
View File

@ -36,9 +36,7 @@ struct perf_session {
struct pevent *pevent;
/*
* FIXME: Need to split this up further, we need global
* stats + per event stats. 'perf diff' also needs
* to properly support multiple events in a single
* perf.data file.
* stats + per event stats.
*/
struct hists hists;
int fd;

6
tools/perf/util/sort.c
View File

@ -12,8 +12,6 @@ int sort__branch_mode = -1; /* -1 = means not set */
enum sort_type sort__first_dimension;
char * field_sep;
LIST_HEAD(hist_entry__sort_list);
static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
@ -23,11 +21,11 @@ static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
va_start(ap, fmt);
n = vsnprintf(bf, size, fmt, ap);
if (field_sep && n > 0) {
if (symbol_conf.field_sep && n > 0) {
char *sep = bf;
while (1) {
sep = strchr(sep, *field_sep);
sep = strchr(sep, *symbol_conf.field_sep);
if (sep == NULL)
break;
*sep = '.';

1
tools/perf/util/sort.h
View File

@ -32,7 +32,6 @@ extern const char default_sort_order[];
extern int sort__need_collapse;
extern int sort__has_parent;
extern int sort__branch_mode;
extern char *field_sep;
extern struct sort_entry sort_comm;
extern struct sort_entry sort_dso;
extern struct sort_entry sort_sym;

3
tools/perf/util/symbol.h
View File

@ -10,6 +10,9 @@
#include <linux/rbtree.h>
#include <stdio.h>
#include <byteswap.h>
#if defined(__BIONIC__)
#include <libgen.h>
#endif
#ifndef NO_LIBELF_SUPPORT
#include <libelf.h>

1
tools/perf/util/top.h
View File

@ -5,6 +5,7 @@
#include "types.h"
#include <stddef.h>
#include <stdbool.h>
#include <termios.h>
struct perf_evlist;
struct perf_evsel;

6
tools/perf/util/util.c
View File

@ -1,7 +1,9 @@
#include "../perf.h"
#include "util.h"
#include <sys/mman.h>
#ifndef NO_BACKTRACE
#include <execinfo.h>
#endif
#include <stdio.h>
#include <stdlib.h>
@ -163,6 +165,7 @@ size_t hex_width(u64 v)
}
/* Obtain a backtrace and print it to stdout. */
#ifndef NO_BACKTRACE
void dump_stack(void)
{
void *array[16];
@ -177,3 +180,6 @@ void dump_stack(void)
free(strings);
}
#else
void dump_stack(void) {}
#endif