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// SPDX-License-Identifier: GPL-2.0
#include <linux/list.h>
#include <linux/compiler.h>
#include <linux/string.h>
#include <linux/zalloc.h>
#include <sys/types.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdarg.h>
#include <locale.h>
#include <api/fs/fs.h>
#include "fncache.h"
#include "pmu-hybrid.h"
LIST_HEAD(perf_pmu__hybrid_pmus);
bool perf_pmu__hybrid_mounted(const char *name)
{
char path[PATH_MAX];
const char *sysfs;
FILE *file;
int n, cpu;
if (strncmp(name, "cpu_", 4))
return false;
sysfs = sysfs__mountpoint();
if (!sysfs)
return false;
snprintf(path, PATH_MAX, CPUS_TEMPLATE_CPU, sysfs, name);
if (!file_available(path))
return false;
file = fopen(path, "r");
if (!file)
return false;
n = fscanf(file, "%u", &cpu);
fclose(file);
if (n <= 0)
return false;
return true;
}
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