linux/tools/perf/util/mem-events.c

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#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "mem-events.h"
#include "debug.h"
#define E(t, n) { .tag = t, .name = n }
struct perf_mem_event perf_mem_events[PERF_MEM_EVENTS__MAX] = {
E("ldlat-loads", "cpu/mem-loads,ldlat=30/P"),
E("ldlat-stores", "cpu/mem-stores/P"),
};
#undef E
int perf_mem_events__parse(const char *str)
{
char *tok, *saveptr = NULL;
bool found = false;
char *buf;
int j;
/* We need buffer that we know we can write to. */
buf = malloc(strlen(str) + 1);
if (!buf)
return -ENOMEM;
strcpy(buf, str);
tok = strtok_r((char *)buf, ",", &saveptr);
while (tok) {
for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
struct perf_mem_event *e = &perf_mem_events[j];
if (strstr(e->tag, tok))
e->record = found = true;
}
tok = strtok_r(NULL, ",", &saveptr);
}
free(buf);
if (found)
return 0;
pr_err("failed: event '%s' not found, use '-e list' to get list of available events\n", str);
return -1;
}