55 lines
962 B
C
Executable File
55 lines
962 B
C
Executable File
/*
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* @Author: zhangzheng 1358745329@qq.com
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* @Date: 2023-08-14 09:47:54
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* @LastEditors: zhangzheng 1358745329@qq.com
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* @LastEditTime: 2023-08-14 13:11:18
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* @FilePath: /mkrtos-real/mkrtos_knl/knl/printk.c
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* @Description: 内核信息输出，内核内使用
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*/
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#include "printk.h"
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#include "stdarg.h"
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#include "xprintf.h"
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#include "spinlock.h"
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static spinlock_t lock;
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static char print_cache[128];
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/**
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* @brief 原始输出
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*
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* @param str
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*/
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static void print_raw(const char *str)
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{
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for (int i = 0; str[i]; i++)
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{
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xputc(str[i]);
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}
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}
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/**
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* @brief 发送一个数据
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*
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* @param c
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*/
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void putc(int c)
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{
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xputc(c);
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}
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/**
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* @brief 输出数据
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*
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* @param fmt
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* @param ...
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*/
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void printk(const char *fmt, ...)
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{
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va_list args;
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umword_t state = 0;
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spinlock_lock(&lock);
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va_start(args, fmt);
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xvsprintf(print_cache, fmt, args);
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va_end(args);
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print_raw(print_cache);
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spinlock_set(&lock, state);
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} |