lk

类型定义
typedef VOID(*	LK_FUNC) (INT32 level, const CHAR *func, INT32 line, const CHAR *fmt, va_list ap)
	Define an printf handling function hook. 更多...

函数
VOID	LOS_LkPrint (INT32 level, const CHAR *func, INT32 line, const CHAR *fmt,...)
	print log. 更多...
VOID	LOS_LkRegHook (LK_FUNC hook)
	register print func. 更多...

详细描述

类型定义说明

LK_FUNC

typedef VOID(* LK_FUNC) (INT32 level, const CHAR *func, INT32 line, const CHAR *fmt, va_list ap)

Define an printf handling function hook.

Description:

This API is used to define the printf handling function hook.

注意

None.

参数

level	[IN] print level.
func	[IN] means which func calls print func.
line	[IN] means which line calls print func.
fmt	[IN] other infomation by user define.
ap	[IN] the para list.

返回值

None.

Dependency:

shell_lk.h: the header file that contains the API declaration.

参见

None.

在文件 shell_lk.h 第 74 行定义.

函数说明

LOS_LkPrint()

VOID LOS_LkPrint	(	INT32	level,
		const CHAR *	func,
		INT32	line,
		const CHAR *	fmt,
			...
	)

print log.

Description:

• This API is used to LK print function.

参数

level	[IN] print level.
func	[IN] means which func calls print func.
line	[IN] means which line calls print func.
fmt	[IN] other infomation by user define

返回值

NONE

Dependency:

• shell_lk.h: the header file that contains the API declaration.

print log.

在文件 los_printf.c 第 276 行定义.

{
    va_list ap;
 
    if (level > PRINT_LEVEL) {
        return;
    }
 
    if ((level != LOS_COMMON_LEVEL) && ((level > LOS_EMG_LEVEL) && (level <= LOS_TRACE_LEVEL))) {
        PRINTK("[%s][%s:%s]", g_logString[level],
                ((OsCurrProcessGet() == NULL) ? "NULL" : OsCurrProcessGet()->processName),
                ((OsCurrTaskGet() == NULL) ? "NULL" : OsCurrTaskGet()->taskName));
    }
 
    va_start(ap, fmt);
    OsVprintf(fmt, ap, CONSOLE_OUTPUT);//控制台打印
#ifdef LOSCFG_SAVE_EXCINFO
    if (OsGetSystemStatus() == OS_SYSTEM_EXC_CURR_CPU) {
        WriteExcBufVa(fmt, ap);
    }
#endif
    va_end(ap);
}

函数调用图:

LOS_LkRegHook()

VOID LOS_LkRegHook

(

LK_FUNC

hook

)

register print func.

Description:

• This API is used to registe a hook function to LK.

参数

LK_FUNC

[IN] the print func.

返回值

NONE

Dependency:

• shell_lk.h: the header file that contains the API declaration.

register print func.

在文件 shell_lk.c 第 228 行定义.

{
    g_osLkHook = hook;
}

这是这个函数的调用关系图: