forked from piyl8cs5f/Iot_Cs_best
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.3 KiB
91 lines
3.3 KiB
/*
|
|
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
|
|
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without modification,
|
|
* are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
* conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
* of conditions and the following disclaimer in the documentation and/or other materials
|
|
* provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
|
|
* to endorse or promote products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <stdlib.h>
|
|
#include "perf.h"
|
|
#include "perf_list.h"
|
|
#include "perf_stat.h"
|
|
#include "perf_record.h"
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
#define TWO_ARGS 2
|
|
#define THREE_ARGS 3
|
|
int fd = open("/dev/perf", O_RDWR);
|
|
if (fd == -1) {
|
|
printf("Perf open failed.\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (argc == 1) {
|
|
PerfUsage();
|
|
} else if ((argc == TWO_ARGS) && strcmp(argv[1], "start") == 0) {
|
|
PerfStart(fd, 0);
|
|
} else if ((argc == THREE_ARGS) && strcmp(argv[1], "start") == 0) {
|
|
size_t id = strtoul(argv[THREE_ARGS - 1], NULL, 0);
|
|
PerfStart(fd, id);
|
|
} else if ((argc == TWO_ARGS) && strcmp(argv[1], "stop") == 0) {
|
|
PerfStop(fd);
|
|
} else if ((argc == THREE_ARGS) && strcmp(argv[1], "read") == 0) {
|
|
size_t size = strtoul(argv[THREE_ARGS - 1], NULL, 0);
|
|
if (size == 0) {
|
|
goto EXIT:
|
|
}
|
|
|
|
char *buf = (char *)malloc(size);
|
|
if (buf != NULL) {
|
|
int len = PerfRead(fd, buf, size);
|
|
PerfPrintBuffer(buf, len);
|
|
free(buf);
|
|
buf = NULL;
|
|
}
|
|
} else if ((argc == TWO_ARGS) && strcmp(argv[1], "list") == 0) {
|
|
PerfList();
|
|
} else if ((argc >= THREE_ARGS) && strcmp(argv[1], "stat") == 0) {
|
|
PerfStat(fd, argc, argv);
|
|
} else if ((argc >= THREE_ARGS) && strcmp(argv[1], "record") == 0) {
|
|
PerfRecord(fd, argc, argv);
|
|
} else {
|
|
printf("Unsupported perf command.\n");
|
|
PerfUsage();
|
|
}
|
|
|
|
EXIT:
|
|
close(fd);
|
|
return 0;
|
|
}
|