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/*
* showevtinfo.c - show event information
*
* Copyright (c) 2006 Hewlett-Packard Development Company, L.P.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* This file is part of libpfm, a performance monitoring support library for
* applications on Linux.
*/
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <stdarg.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <regex.h>
#include <perfmon/pfmlib.h>
static void fatal_error(char *fmt,...) __attribute__((noreturn));
static size_t max_len;
static void
fatal_error(char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
exit(1);
}
static void
show_event_info(char *name, unsigned int idx)
{
pfmlib_regmask_t cnt, impl_cnt;
char *desc;
unsigned int n1, n2, i, c;
int code, prev_code = 0, first = 1;
pfm_get_event_counters(idx, &cnt);
pfm_get_num_counters(&n2);
pfm_get_impl_counters(&impl_cnt);
n1 = n2;
printf("#-----------------------------\n"
"Name : %s\n",
name);
pfm_get_event_description(idx, &desc);
printf("Desc : %s\n", desc);
free(desc);
printf("Code :");
for (i=0; n1; i++) {
if (pfm_regmask_isset(&impl_cnt, i))
n1--;
if (pfm_regmask_isset(&cnt, i)) {
pfm_get_event_code_counter(idx,i,&code);
if (first == 1 || code != prev_code) {
printf(" 0x%x", code);
first = 0;
}
prev_code = code;
}
}
putchar('\n');
n1 = n2;
printf("Counters : [ ");
for (i=0; n1; i++) {
if (pfm_regmask_isset(&impl_cnt, i))
n1--;
if (pfm_regmask_isset(&cnt, i))
printf("%d ", i);
}
puts("]");
pfm_get_num_event_masks(idx, &n1);
for (i = 0; i < n1; i++) {
pfm_get_event_mask_description(idx, i, &desc);
pfm_get_event_mask_code(idx, i, &c);
pfm_get_event_mask_name(idx, i, name, max_len+1);
printf("Umask-%02u : 0x%02x : [%s] : %s\n", i, c, name, desc);
free(desc);
}
}
#define MAX_PMU_NAME_LEN 32
int
main(int argc, char **argv)
{
unsigned int i, count, match;
char *name;
regex_t preg;
char model[MAX_PMU_NAME_LEN];
if (pfm_initialize() != PFMLIB_SUCCESS)
fatal_error("PMU model not supported by library\n");
pfm_get_max_event_name_len(&max_len);
name = malloc(max_len+1);
if (name == NULL)
fatal_error("cannot allocate name buffer\n");
pfm_get_num_events(&count);
if (argc == 1)
*argv = ".*"; /* match everything */
else
++argv;
pfm_get_pmu_name(model, MAX_PMU_NAME_LEN);
printf("PMU model: %s\n", model);
while(*argv) {
if (regcomp(&preg, *argv, REG_ICASE|REG_NOSUB))
fatal_error("error in regular expression for event \"%s\"\n", *argv);
match = 0;
for(i=0; i < count; i++) {
pfm_get_event_name(i, name, max_len+1);
if (regexec(&preg, name, 0, NULL, 0) == 0) {
show_event_info(name, i);
match++;
}
}
if (match == 0)
fatal_error("event %s not found\n", *argv);
argv++;
}
free(name);
return 0;
}
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