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perf list: Clean up the printing functions of hardware/software events 

Do not need print_events_type or __print_events_type for listing hw/sw
events, let print_symbol_events do its job instead. Moreover,
print_symbol_events can also handle event_glob and name_only.

Signed-off-by: Yunlong Song <yunlong.song@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1425032491-20224-4-git-send-email-yunlong.song@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Yunlong Song 2015-02-27 18:21:27 +08:00 committed by Arnaldo Carvalho de Melo
parent 3ef1e65c82
commit 705750f2d6
3 changed files with 17 additions and 80 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/perf/builtin-list.c
View File

@ -54,10 +54,12 @@ int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
print_tracepoint_events(NULL, NULL, false);
else if (strcmp(argv[i], "hw") == 0 ||
strcmp(argv[i], "hardware") == 0)
print_events_type(PERF_TYPE_HARDWARE);
print_symbol_events(NULL, PERF_TYPE_HARDWARE,
event_symbols_hw, PERF_COUNT_HW_MAX, false);
else if (strcmp(argv[i], "sw") == 0 ||
strcmp(argv[i], "software") == 0)
print_events_type(PERF_TYPE_SOFTWARE);
print_symbol_events(NULL, PERF_TYPE_SOFTWARE,
event_symbols_sw, PERF_COUNT_SW_MAX, false);
else if (strcmp(argv[i], "cache") == 0 ||
strcmp(argv[i], "hwcache") == 0)
print_hwcache_events(NULL, false);

80
tools/perf/util/parse-events.c
View File

@ -20,11 +20,6 @@
#define MAX_NAME_LEN 100
struct event_symbol {
const char *symbol;
const char *alias;
};
#ifdef PARSER_DEBUG
extern int parse_events_debug;
#endif
@ -39,7 +34,7 @@ static struct perf_pmu_event_symbol *perf_pmu_events_list;
*/
static int perf_pmu_events_list_num;
static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_CPU_CYCLES] = {
.symbol = "cpu-cycles",
.alias = "cycles",
@ -82,7 +77,7 @@ static struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = {
},
};
static struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = {
[PERF_COUNT_SW_CPU_CLOCK] = {
.symbol = "cpu-clock",
.alias = "",
@ -1269,75 +1264,6 @@ static bool is_event_supported(u8 type, unsigned config)
return ret;
}
static void __print_events_type(u8 type, struct event_symbol *syms,
unsigned max)
{
char name[64];
unsigned int i, evt_i = 0, evt_num = 0;
char **evt_list = NULL;
bool evt_num_known = false;
restart:
if (evt_num_known) {
evt_list = zalloc(sizeof(char *) * evt_num);
if (!evt_list)
goto out_enomem;
syms -= max;
}
for (i = 0; i < max ; i++, syms++) {
if (!is_event_supported(type, i))
continue;
if (!evt_num_known) {
evt_num++;
continue;
}
if (strlen(syms->alias))
snprintf(name, sizeof(name), "%s OR %s",
syms->symbol, syms->alias);
else
snprintf(name, sizeof(name), "%s", syms->symbol);
evt_list[evt_i] = strdup(name);
if (evt_list[evt_i] == NULL)
goto out_enomem;
evt_i++;
}
if (!evt_num_known) {
evt_num_known = true;
goto restart;
}
qsort(evt_list, evt_num, sizeof(char *), cmp_string);
evt_i = 0;
while (evt_i < evt_num)
printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]);
if (evt_num)
printf("\n");
out_free:
evt_num = evt_i;
for (evt_i = 0; evt_i < evt_num; evt_i++)
zfree(&evt_list[evt_i]);
zfree(&evt_list);
return;
out_enomem:
printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]);
if (evt_list)
goto out_free;
}
void print_events_type(u8 type)
{
if (type == PERF_TYPE_SOFTWARE)
__print_events_type(type, event_symbols_sw, PERF_COUNT_SW_MAX);
else
__print_events_type(type, event_symbols_hw, PERF_COUNT_HW_MAX);
}
int print_hwcache_events(const char *event_glob, bool name_only)
{
unsigned int type, op, i, evt_i = 0, evt_num = 0;
@ -1412,7 +1338,7 @@ out_enomem:
return evt_num;
}
static void print_symbol_events(const char *event_glob, unsigned type,
void print_symbol_events(const char *event_glob, unsigned type,
struct event_symbol *syms, unsigned max,
bool name_only)
{

11
tools/perf/util/parse-events.h
View File

@ -116,7 +116,16 @@ void parse_events_update_lists(struct list_head *list_event,
void parse_events_error(void *data, void *scanner, char const *msg);
void print_events(const char *event_glob, bool name_only);
void print_events_type(u8 type);
struct event_symbol {
const char *symbol;
const char *alias;
};
extern struct event_symbol event_symbols_hw[];
extern struct event_symbol event_symbols_sw[];
void print_symbol_events(const char *event_glob, unsigned type,
struct event_symbol *syms, unsigned max,
bool name_only);
void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
bool name_only);
int print_hwcache_events(const char *event_glob, bool name_only);