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 12:46:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：kdb_register_flags

函数原型：int kdb_register_flags(char *cmd, kdb_func_t func, char *usage, char *help, short minlen, kdb_cmdflags_t flags)

返回类型：int

参数：

类型参数名称
char *cmd
kdb_func_tfunc
char *usage
char *help
shortminlen
kdb_cmdflags_tflags
2672  如果Command name 且字符串比较恒等于0则
2673  kdb_printf("Duplicate kdb command registered: %s, func %px help %s\n", cmd, func, help)
2675  返回:1
2683  如果(Command name == NULL)则退出
2687  如果i大于等于kdb_max_commands则
2688  new等于分配数组内存
2693  如果非new则
2694  kdb_printf("Could not allocate new kdb_command table\n")
2696  返回:1
2698  如果kdb_commands describes the available commands. 则
2699  内存复制(new, kdb_commands describes the available commands. , (kdb_max_commands - KDB_BASE_CMD_MAX) * new的长度)
2701  kfree(kdb_commands describes the available commands. )
2703  memset(new + kdb_max_commands - KDB_BASE_CMD_MAX, 0, arbitrary * new的长度)
2705  kdb_commands describes the available commands. 等于new
2706  kp等于kdb_commands describes the available commands. 加kdb_max_commands减KDB_BASE_CMD_MAX
2707  kdb_max_commands加等于arbitrary
2710  Command name 等于cmd
2711  Function to execute command 等于func
2712  Usage String for this command 等于usage
2713  Help message for this command 等于help
2714  Minimum legal # command* chars required 等于minlen
2715  Command behaviour flags 等于flags
2717  返回:0
调用者
名称描述
kdb_defcmd2
kdb_registerkdb_register - Compatibility register function for commands that do* not need to specify a repeat state
kdb_inittabInitialize the kdb command table.
kdb_initbptabInitialize the breakpoint table and register breakpoint commands.
kdb_ftrace_register