1// SPDX-License-Identifier: GPL-2.0
2// Copyright (C) 2005-2017 Andes Technology Corporation
3
4#include <stdio.h>
5#include <stdlib.h>
6#include <api/fs/fs.h>
7#include "header.h"
8
9#define STR_LEN 1024
10
11char *get_cpuid_str(struct perf_pmu *pmu)
12{
13	/* In nds32, we only have one cpu */
14	char *buf = NULL;
15	struct cpu_map *cpus;
16	const char *sysfs = sysfs__mountpoint();
17
18	if (!sysfs || !pmu || !pmu->cpus)
19		return NULL;
20
21	buf = malloc(STR_LEN);
22	if (!buf)
23		return NULL;
24
25	cpus = cpu_map__get(pmu->cpus);
26	sprintf(buf, "0x%x", cpus->nr - 1);
27	cpu_map__put(cpus);
28	return buf;
29}
30