perf_stat.h 文件参考

浏览源代码.

函数
void	PerfStat (int fd, int argc, char **argv)

函数说明

PerfStat()

void PerfStat	(	int	fd,
		int	argc,
		char **	argv
	)

在文件 perf_stat.c 第 107 行定义.

{
    int ret;
    int child;
    SubCmd cmd = {0};
 
    if (argc < 3) { /* perf stat argc is at least 3 */
        return;
    }
 
    ret = PerfStatAttrInit();
    if (ret != 0) {
        printf("perf stat attr init failed\n");
        return;
    }
 
    ret = ParseOptions(argc - 2, &argv[2], g_statOpts, &cmd); /* parse option and cmd begin at index 2 */
    if (ret != 0) {
        printf("parse error\n");
        return;
    }
 
    ret = PerfConfig(fd, &g_statAttr);
    if (ret != 0) {
        printf("perf config failed\n");
        return;
    }
 
    PerfStart(fd, 0);
    child = fork();
    if (child < 0) {
        printf("fork error\n");
        goto EXIT;
    } else if (child == 0) {
        (void)execve(cmd.path, cmd.params, NULL);
        exit(0);
    }
 
    (void)waitpid(child, 0, 0);
EXIT:
    PerfStop(fd);
}

函数调用图:

这是这个函数的调用关系图: