函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\debug\kdb\kdb_main.c Create Date:2022-07-27 12:46:30
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：kdb_pid - This function implements the 'pid' command which switches* the currently active process.* pid [<pid> | R]

函数原型：static int kdb_pid(int argc, const char **argv)

返回类型：int

参数：

类型参数名称
intargc
const char **argv
2389  如果argc大于1则返回:KDB_ARGCOUNT
2392  如果argc则
2393  如果字符串比较恒等于0则
2394  p等于KDB_TSK(cpu number that owns kdb )
2395  否则
2396  diag等于kdbgetularg - This function will convert a numeric string into an* unsigned long value.* Parameters:* arg A character string representing a numeric value* Outputs:* *value the unsigned long represntation of arg.* Returns:
2397  如果diag则返回:KDB_BADINT
2400  p等于Must be called under rcu_read_lock().
2401  如果非p则
2402  kdb_printf("No task with pid=%d\n", (pid_t)val)
2403  返回:0
2406  kdb_set_current_task(p)
2408  kdb_printf("KDB current process is %s(pid=%d)\n", 是否使用FPU, 进程ID)
2412  返回:0