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https://github.com/DragonOS-Community/DragonOS.git
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新增rust ffi (#77)
* 引入cargo * 取消对Cargo.lock的跟踪 * 解决vscode报错问题 * new: rust的代码能够调用c语言的printk_color * 1、将原本run.sh的工作拆解，变为几个不同的make命令 2、在docker镜像中编译rust * 更改workflow * update workflow * new: 解决workflow无法通过编译的问题
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14
kernel/src/common/Makefile
Normal file
14
kernel/src/common/Makefile
Normal file
@ -0,0 +1,14 @@
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CFLAGS += -I .
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kernel_common_subdirs:= math
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ECHO:
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@echo "$@"
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$(kernel_common_subdirs): ECHO
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$(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" PIC="$(PIC)"
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all: $(kernel_common_subdirs)
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28
kernel/src/common/asm.h
Normal file
28
kernel/src/common/asm.h
Normal file
@ -0,0 +1,28 @@
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#pragma once
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#ifndef __ASM__
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#define __ASM__
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// 符号名
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#define SYMBOL_NAME(X) X
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// 符号名字符串
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#define SYMBOL_NAME_STR(X) #X
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// 符号名label
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#define SYMBOL_NAME_LABEL(X) X##:
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#define L1_CACHE_BYTES 32
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#define asmlinkage __attribute__((regparm(0)))
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#define ____cacheline_aligned __attribute__((__aligned__(L1_CACHE_BYTES)))
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#define ENTRY(name) \
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.global SYMBOL_NAME(name); \
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SYMBOL_NAME_LABEL(name)
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#endif
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99
kernel/src/common/atomic.h
Normal file
99
kernel/src/common/atomic.h
Normal file
@ -0,0 +1,99 @@
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/**
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* @file atomic.h
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* @author fslongjin (longjin@RinGoTek.cn)
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* @brief 原子变量
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* @version 0.1
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* @date 2022-04-12
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*
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* @copyright Copyright (c) 2022
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*
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*/
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#pragma once
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#define atomic_read(atomic) ((atomic)->value) // 读取原子变量
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#define atomic_set(atomic,val) (((atomic)->value) = (val)) // 设置原子变量的初始值
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typedef struct
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{
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volatile long value;
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} atomic_t;
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/**
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* @brief 原子变量增加值
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*
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* @param ato 原子变量对象
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* @param val 要增加的值
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*/
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inline void atomic_add(atomic_t *ato, long val)
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{
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asm volatile("lock addq %1, %0 \n\t"
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: "=m"(ato->value)
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: "m"(val)
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: "memory");
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}
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/**
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* @brief 原子变量减少值
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*
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* @param ato 原子变量对象
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* @param val 要减少的值
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*/
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inline void atomic_sub(atomic_t *ato, long val)
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{
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asm volatile("lock subq %1, %0 \n\t"
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: "=m"(ato->value)
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: "m"(val)
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: "memory");
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}
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/**
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* @brief 原子变量自增
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*
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* @param ato 原子变量对象
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*/
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void atomic_inc(atomic_t *ato)
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{
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asm volatile("lock incq %0 \n\t"
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: "=m"(ato->value)
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: "m"(ato->value)
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: "memory");
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}
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/**
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* @brief 原子变量自减
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*
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* @param ato 原子变量对象
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*/
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void atomic_dec(atomic_t *ato)
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{
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asm volatile("lock decq %0 \n\t"
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: "=m"(ato->value)
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: "m"(ato->value)
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: "memory");
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}
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/**
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* @brief 设置原子变量的mask
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*
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* @param ato 原子变量对象
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*/
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inline void atomic_set_mask(atomic_t *ato, long mask)
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{
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__asm__ __volatile__("lock orq %1, %0 \n\t"
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: "=m"(ato->value)
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: "r"(mask)
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: "memory");
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}
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/**
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* @brief 清除原子变量的mask
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*
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* @param ato 原子变量对象
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*/
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inline void atomic_clear_mask(atomic_t *ato, long mask)
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{
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__asm__ __volatile__("lock andq %1, %0 \n\t"
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: "=m"(ato->value)
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: "r"(mask)
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: "memory");
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}
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79
kernel/src/common/bitree.h
Normal file
79
kernel/src/common/bitree.h
Normal file
@ -0,0 +1,79 @@
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#pragma once
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#include <common/glib.h>
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struct bt_node_t
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{
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struct bt_node_t *left;
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struct bt_node_t *right;
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struct bt_node_t *parent;
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void *value; // 数据
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} __attribute__((aligned(sizeof(long))));
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struct bt_root_t
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{
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struct bt_node_t *bt_node;
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int32_t size; // 树中的元素个数
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int (*cmp)(void *a, void *b); // 比较函数 a>b 返回1， a==b返回0, a<b返回-1
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/**
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* @brief 释放结点的value的函数
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* @param value 结点的值
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*/
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int (*release)(void *value);
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};
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/**
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* @brief 创建二叉搜索树
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*
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* @param node 根节点
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* @param cmp 比较函数
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* @param release 用来释放结点的value的函数
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* @return struct bt_root_t* 树根结构体
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*/
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struct bt_root_t *bt_create_tree(struct bt_node_t *node, int (*cmp)(void *a, void *b), int (*release)(void *value));
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/**
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* @brief 创建结点
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*
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* @param left 左子节点
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* @param right 右子节点
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* @param value 当前节点的值
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* @return struct bt_node_t*
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||||
*/
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||||
struct bt_node_t *bt_create_node(struct bt_node_t *left, struct bt_node_t *right, struct bt_node_t *parent, void *value);
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/**
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* @brief 插入结点
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*
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* @param root 树根结点
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* @param value 待插入结点的值
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* @return int 返回码
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*/
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int bt_insert(struct bt_root_t *root, void *value);
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/**
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* @brief 搜索值为value的结点
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*
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* @param root 树根结点
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* @param value 值
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* @param ret_addr 返回的结点基地址
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* @return int 错误码
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||||
*/
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int bt_query(struct bt_root_t *root, void *value, uint64_t *ret_addr);
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|
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/**
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* @brief 删除结点
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*
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* @param root 树根
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* @param value 待删除结点的值
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* @return int 返回码
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*/
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int bt_delete(struct bt_root_t *root, void *value);
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/**
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* @brief 释放整个二叉搜索树
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*
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* @param root
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* @return int
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*/
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int bt_destroy_tree(struct bt_root_t *root);
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94
kernel/src/common/blk_types.h
Normal file
94
kernel/src/common/blk_types.h
Normal file
@ -0,0 +1,94 @@
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#pragma once
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#include <common/glib.h>
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#include "stdint.h"
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#include <common/semaphore.h>
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#include <common/mutex.h>
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||||
#define BLK_TYPE_AHCI 0
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#define DISK_NAME_LEN 32 // 磁盘名称的最大长度
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struct blk_gendisk;
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struct block_device_operation
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||||
{
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long (*open)();
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long (*close)();
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long (*ioctl)(long cmd, long arg);
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|
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/**
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* @brief 块设备驱动程序的传输函数
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*
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||||
* @param gd 磁盘设备结构体
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* @param cmd 控制命令
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* @param base_addr 48位LBA地址
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* @param count total sectors to read
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* @param buf 缓冲区线性地址
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* @return long
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*/
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||||
long (*transfer)(struct blk_gendisk *gd, long cmd, uint64_t base_addr, uint64_t count, uint64_t buf);
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};
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/**
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* @brief 块设备请求队列内的packet
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*
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*/
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struct block_device_request_packet
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{
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uchar cmd;
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uint64_t LBA_start;
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uint32_t count;
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uint64_t buffer_vaddr;
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uint8_t device_type; // 0: ahci
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||||
void (*end_handler)(ul num, ul arg);
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wait_queue_node_t wait_queue;
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};
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|
||||
/**
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||||
* @brief 块设备的请求队列
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||||
*
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*/
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struct block_device_request_queue
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{
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wait_queue_node_t wait_queue_list;
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||||
struct block_device_request_packet *in_service; // 正在请求的结点
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ul request_count;
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};
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|
||||
/**
|
||||
* @brief 块设备结构体（对应磁盘的一个分区）
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||||
*
|
||||
*/
|
||||
struct block_device
|
||||
{
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||||
sector_t bd_start_sector; // 该分区的起始扇区
|
||||
uint64_t bd_start_LBA; // 起始LBA号
|
||||
sector_t bd_sectors_num; // 该分区的扇区数
|
||||
struct vfs_superblock_t *bd_superblock; // 执行超级块的指针
|
||||
struct blk_gendisk *bd_disk; // 当前分区所属的磁盘
|
||||
struct block_device_request_queue *bd_queue; // 请求队列
|
||||
uint16_t bd_partno; // 在磁盘上的分区号
|
||||
};
|
||||
|
||||
// 定义blk_gendisk中的标志位
|
||||
#define BLK_GF_AHCI (1 << 0)
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||||
|
||||
/**
|
||||
* @brief 磁盘设备结构体
|
||||
*
|
||||
*/
|
||||
struct blk_gendisk
|
||||
{
|
||||
char disk_name[DISK_NAME_LEN]; // 磁盘驱动器名称
|
||||
uint16_t part_cnt; // 磁盘分区计数
|
||||
uint16_t flags;
|
||||
struct block_device *partition; // 磁盘分区数组
|
||||
const struct block_device_operation *fops; // 磁盘操作
|
||||
struct block_device_request_queue *request_queue; // 磁盘请求队列
|
||||
void *private_data;
|
||||
|
||||
mutex_t open_mutex; // open()/close()操作的互斥锁
|
||||
};
|
||||
10
kernel/src/common/block.h
Normal file
10
kernel/src/common/block.h
Normal file
@ -0,0 +1,10 @@
|
||||
#pragma once
|
||||
#include "blk_types.h"
|
||||
|
||||
/**
|
||||
* @brief 将磁盘注册到块设备框架中
|
||||
*
|
||||
* @param gendisk 磁盘结构体
|
||||
* @return int 错误码
|
||||
*/
|
||||
int blk_register_gendisk(struct blk_gendisk * gendisk);
|
||||
23
kernel/src/common/boot_info.h
Normal file
23
kernel/src/common/boot_info.h
Normal file
@ -0,0 +1,23 @@
|
||||
|
||||
/**
|
||||
* @file boot_info.h
|
||||
* @brief 启动信息接口
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
#include "glib.h"
|
||||
|
||||
/**
|
||||
* @brief 启动信息接口
|
||||
* 由引导传递的机器信息处理
|
||||
* 如 grub2 传递的 multiboot2 结构
|
||||
* 注意这部分是通过内存传递的，在重新保存之前不能被覆盖
|
||||
* 架构专有的数据在 dtb.h 或 multiboot2.h
|
||||
* 实现在 dtb.cpp 或 multiboot2.cpp
|
||||
*/
|
||||
/// 声明，定义在具体的实现中
|
||||
/// 地址
|
||||
extern uintptr_t boot_info_addr;
|
||||
/// 长度
|
||||
extern unsigned int boot_info_size;
|
||||
|
||||
145
kernel/src/common/compiler.h
Normal file
145
kernel/src/common/compiler.h
Normal file
@ -0,0 +1,145 @@
|
||||
#pragma once
|
||||
|
||||
#include <common/compiler_attributes.h>
|
||||
|
||||
#define likely(x) __builtin_expect(!!(x), 1)
|
||||
#define unlikely(x) __builtin_expect(!!(x), 0)
|
||||
|
||||
#ifndef barrier
|
||||
// 内存屏障
|
||||
#define barrier() __asm__ __volatile__("" :: \
|
||||
: "memory");
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief 编译时断言，如果condition不为1，则输出msg
|
||||
*
|
||||
* @param prefix 一个“不存在的函数名”的前缀
|
||||
* @param suffix 一个“不存在的函数名”的后缀
|
||||
*/
|
||||
#define __compiletime_assert(condition, msg, prefix, suffix) \
|
||||
do \
|
||||
{ \
|
||||
/** \
|
||||
* 声明一个不存在的函数的extern，如果assert失败，就调用它，从而导致 \
|
||||
* 链接时出错，进而达到“编译时断言”的功能。 \
|
||||
*/ \
|
||||
__noreturn extern void prefix##suffix(void) \
|
||||
__compiletime_error(msg); \
|
||||
if (!(condition)) \
|
||||
prefix##suffix(); \
|
||||
} while (0)
|
||||
|
||||
/**
|
||||
* @brief 当condition是false时，中断编译，并输出指定的错误信息
|
||||
*
|
||||
* @param condition assert的情况
|
||||
* @param msg condition为false时输出的错误信息
|
||||
*/
|
||||
#define complietime_assert(condition, msg) \
|
||||
__compiletime_assert(condition, msg, __compiletime_assert__, __COUNTER__)
|
||||
|
||||
/**
|
||||
* @brief 从src读取数据到dst，该过程避免编译器优化。
|
||||
*
|
||||
* @param dst 目标地址指针
|
||||
* @param src 源地址指针
|
||||
* @param size 要读取的数据大小（建议1、2、4、8字节，若不满足要求，则采用memcpy读取。）
|
||||
*/
|
||||
static __always_inline void __read_once_size(void *dst, const volatile void *src, int size)
|
||||
{
|
||||
switch (size)
|
||||
{
|
||||
case 1:
|
||||
*(__u8_alias_t *)dst = *(volatile __u8_alias_t *)src;
|
||||
break;
|
||||
case 2:
|
||||
*(__u16_alias_t *)dst = *(volatile __u16_alias_t *)src;
|
||||
break;
|
||||
case 4:
|
||||
*(__u32_alias_t *)dst = *(volatile __u32_alias_t *)src;
|
||||
break;
|
||||
case 8:
|
||||
*(__u64_alias_t *)dst = *(volatile __u64_alias_t *)src;
|
||||
break;
|
||||
default:
|
||||
barrier();
|
||||
__builtin_memcpy((void *)dst, (const void *)src, size);
|
||||
barrier();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 把src处的数据到dst，该过程避免编译器优化。
|
||||
*
|
||||
* @param dst 目标地址指针
|
||||
* @param src 源地址指针
|
||||
* @param size 要写入的数据大小（建议1、2、4、8字节，若不满足要求，则采用memcpy传输。）
|
||||
*/
|
||||
static __always_inline void __write_once_size(volatile void *dst, void *src, int size)
|
||||
{
|
||||
switch (size)
|
||||
{
|
||||
case 1:
|
||||
*(volatile __u8_alias_t *)dst = *(__u8_alias_t *)src;
|
||||
break;
|
||||
case 2:
|
||||
*(volatile __u16_alias_t *)dst = *(__u16_alias_t *)src;
|
||||
break;
|
||||
case 4:
|
||||
*(volatile __u32_alias_t *)dst = *(__u32_alias_t *)src;
|
||||
break;
|
||||
case 8:
|
||||
*(volatile __u64_alias_t *)dst = *(__u64_alias_t *)src;
|
||||
break;
|
||||
default:
|
||||
barrier();
|
||||
__builtin_memcpy((void *)dst, (const void *)src, size);
|
||||
barrier();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 这两个宏能够避免编译器重排序、合并涉及到的读写操作，从而避免由于编译器优化导致的多线程读写顺序错误。
|
||||
* 通过将有顺序要求的两个读/写操作放置在READ_ONCE()和WRITE_ONCE()之中，能够让编译器知道这些操作具有顺序要求。
|
||||
*
|
||||
* 这两个宏同样适用于Union或struct。如果要访问的数据大小不是1、2、4、8字节，则会使用memcpy来处理。
|
||||
*
|
||||
* 这两个宏的主要使用场景：
|
||||
* 1.两个进程或者中断处理函数之间的信息交流与沟通
|
||||
* 2.确保编译器不会折叠、旋转或以其他方式对代码进行优化，从而破坏数据访问顺序。
|
||||
*
|
||||
* 这两个宏的union __u内的__c用作这个union的地址的指针
|
||||
*
|
||||
* 关于READ_ONCE和WRITE_ONCE的简单说明，请转到：https://bbs.dragonos.org/forum.php?mod=viewthread&tid=24
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief 读取变量x (避免编译器优化)
|
||||
*/
|
||||
#define READ_ONCE(x) \
|
||||
({ \
|
||||
union \
|
||||
{ \
|
||||
typeof(x) __val; \
|
||||
char __c[1]; \
|
||||
} __u = {.__c = {0}}; \
|
||||
__read_once_size(__u.__c, &(x), sizeof(x)); \
|
||||
__u.__val; \
|
||||
})
|
||||
|
||||
/**
|
||||
* @brief 将val写入变量x (避免编译器优化)
|
||||
*/
|
||||
#define WRITE_ONCE(x, val) \
|
||||
({ \
|
||||
union \
|
||||
{ \
|
||||
typeof(x) __val; \
|
||||
char __c[1]; \
|
||||
} __u = {.val = (val)}; \
|
||||
__write_once_size(&(x), __u.__c, sizeof(x)); \
|
||||
__u.__val; \
|
||||
})
|
||||
23
kernel/src/common/compiler_attributes.h
Normal file
23
kernel/src/common/compiler_attributes.h
Normal file
@ -0,0 +1,23 @@
|
||||
#pragma once
|
||||
#include <common/stddef.h>
|
||||
|
||||
// 当函数的返回值未被使用时，编译器抛出警告信息
|
||||
#define __must_check __attribute__((__warn_unused_result__))
|
||||
#define __force __attribute__((force))
|
||||
// 无返回值的属性
|
||||
#define __noreturn __attribute__((__noreturn__))
|
||||
/*
|
||||
* Optional: only supported since clang >= 14.0
|
||||
*
|
||||
* gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-error-function-attribute
|
||||
*/
|
||||
#if __has_attribute(__error__)
|
||||
#define __compiletime_error(msg) __attribute__((__error__(msg)))
|
||||
#else
|
||||
#define __compiletime_error(msg)
|
||||
#endif
|
||||
|
||||
typedef uint8_t __attribute__((__may_alias__)) __u8_alias_t;
|
||||
typedef uint16_t __attribute__((__may_alias__)) __u16_alias_t;
|
||||
typedef uint32_t __attribute__((__may_alias__)) __u32_alias_t;
|
||||
typedef uint64_t __attribute__((__may_alias__)) __u64_alias_t;
|
||||
47
kernel/src/common/completion.h
Normal file
47
kernel/src/common/completion.h
Normal file
@ -0,0 +1,47 @@
|
||||
#include <common/spinlock.h>
|
||||
#include <common/wait_queue_head.h>
|
||||
#include <process/process.h>
|
||||
#include <time/sleep.h>
|
||||
#include <time/timer.h>
|
||||
|
||||
// 永久地设置该completion已经被完成,不会再有进程等待
|
||||
#define COMPLETE_ALL UINT32_MAX
|
||||
|
||||
struct completion
|
||||
{
|
||||
unsigned int done;
|
||||
wait_queue_head_t wait_queue;
|
||||
};
|
||||
|
||||
#define DECLARE_COMPLETION_ON_STACK(name) \
|
||||
struct completion name = {0}; \
|
||||
completion_init(&name);
|
||||
|
||||
/**
|
||||
* 对外函数声明
|
||||
*/
|
||||
void completion_init(struct completion *x);
|
||||
void complete(struct completion *x);
|
||||
void complete_all(struct completion *x);
|
||||
void wait_for_completion(struct completion *x);
|
||||
long wait_for_completion_timeout(struct completion *x, long timeout);
|
||||
void wait_for_completion_interruptible(struct completion *x);
|
||||
long wait_for_completion_interruptible_timeout(struct completion *x, long timeout);
|
||||
void wait_for_multicompletion(struct completion x[], int n);
|
||||
bool try_wait_for_completion(struct completion *x);
|
||||
bool completion_done(struct completion *x);
|
||||
|
||||
/**
|
||||
* 测试函数声明 (测试代码辅助函数)
|
||||
*/
|
||||
struct __test_data
|
||||
{
|
||||
int id;
|
||||
struct completion *one_to_one;
|
||||
struct completion *one_to_many;
|
||||
struct completion *many_to_one;
|
||||
};
|
||||
|
||||
int __test_completion_waiter(void *data); // 等待者
|
||||
int __test_completion_worker(void *data); // 执行者
|
||||
void __test_completion();
|
||||
69
kernel/src/common/cpu.h
Normal file
69
kernel/src/common/cpu.h
Normal file
@ -0,0 +1,69 @@
|
||||
#pragma once
|
||||
|
||||
#include "glib.h"
|
||||
|
||||
#define MAX_CPU_NUM 32 // 操作系统支持的最大处理器数量
|
||||
|
||||
// cpu支持的最大cpuid指令的基础主功能号
|
||||
extern uint32_t Cpu_cpuid_max_Basic_mop;
|
||||
// cpu支持的最大cpuid指令的扩展主功能号
|
||||
extern uint32_t Cpu_cpuid_max_Extended_mop;
|
||||
// cpu制造商信息
|
||||
extern char Cpu_Manufacturer_Name[17];
|
||||
// 处理器名称信息
|
||||
extern char Cpu_BrandName[49];
|
||||
// 处理器家族ID
|
||||
extern uint32_t Cpu_Family_ID;
|
||||
// 处理器扩展家族ID
|
||||
extern uint32_t Cpu_Extended_Family_ID;
|
||||
// 处理器模式ID
|
||||
extern uint32_t Cpu_Model_ID;
|
||||
// 处理器扩展模式ID
|
||||
extern uint32_t Cpu_Extended_Model_ID;
|
||||
// 处理器步进ID
|
||||
extern uint32_t Cpu_Stepping_ID;
|
||||
// 处理器类型
|
||||
extern uint32_t Cpu_Processor_Type;
|
||||
// 处理器支持的最大物理地址可寻址地址线宽度
|
||||
extern uint32_t Cpu_max_phys_addrline_size;
|
||||
// 处理器支持的最大线性地址可寻址地址线宽度
|
||||
extern uint32_t Cpu_max_linear_addrline_size;
|
||||
|
||||
// 处理器的tsc频率（单位：hz）(HPET定时器在测定apic频率时，顺便测定了这个值)
|
||||
extern uint64_t Cpu_tsc_freq;
|
||||
|
||||
/**
|
||||
* @brief 执行cpuid指令
|
||||
*
|
||||
* @param mop 主功能号
|
||||
* @param sop 子功能号
|
||||
* @param eax 结果的eax值
|
||||
* @param ebx 结果的ebx值
|
||||
* @param ecx 结果的ecx值
|
||||
* @param edx 结果的edx值
|
||||
*
|
||||
* cpuid指令参考英特尔开发手册卷2A Chapter3 3.2 Instruction
|
||||
*/
|
||||
void cpu_cpuid(uint32_t mop, uint32_t sop, uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx);
|
||||
|
||||
/**
|
||||
* @brief 初始化获取处理器信息模块
|
||||
*
|
||||
*/
|
||||
void cpu_init(void);
|
||||
|
||||
struct cpu_core_info_t
|
||||
{
|
||||
uint64_t stack_start; // 栈基地址
|
||||
uint64_t ist_stack_start; // IST栈基地址
|
||||
uint64_t tss_vaddr; // tss地址
|
||||
};
|
||||
|
||||
extern struct cpu_core_info_t cpu_core_info[MAX_CPU_NUM];
|
||||
|
||||
/**
|
||||
* @brief 获取当前cpu核心晶振频率
|
||||
*
|
||||
* @return uint32_t 当前cpu核心晶振频率
|
||||
*/
|
||||
uint32_t cpu_get_core_crysral_freq();
|
||||
12
kernel/src/common/crc16.h
Normal file
12
kernel/src/common/crc16.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
|
||||
/**
|
||||
* @brief 计算crc16
|
||||
*
|
||||
* @param crc crc初始值
|
||||
* @param buffer 输入缓冲区
|
||||
* @param len buffer大小（bytes）
|
||||
* @return uint16_t crc
|
||||
*/
|
||||
uint16_t crc16(uint16_t crc, const uint8_t *buffer, size_t len);
|
||||
12
kernel/src/common/crc32.h
Normal file
12
kernel/src/common/crc32.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
|
||||
/**
|
||||
* @brief 计算crc32
|
||||
*
|
||||
* @param crc crc初始值
|
||||
* @param buffer 输入缓冲区
|
||||
* @param len buffer大小（bytes）
|
||||
* @return uint32_t crc
|
||||
*/
|
||||
uint32_t crc32(uint32_t crc, const uint8_t *buffer, size_t len);
|
||||
12
kernel/src/common/crc64.h
Normal file
12
kernel/src/common/crc64.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
|
||||
/**
|
||||
* @brief 计算crc64
|
||||
*
|
||||
* @param crc crc初始值
|
||||
* @param buffer 输入缓冲区
|
||||
* @param len buffer大小（bytes）
|
||||
* @return uint64_t crc
|
||||
*/
|
||||
uint64_t crc64(uint64_t crc, const uint8_t *buffer, size_t len);
|
||||
12
kernel/src/common/crc7.h
Normal file
12
kernel/src/common/crc7.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
|
||||
/**
|
||||
* @brief 计算crc7
|
||||
*
|
||||
* @param crc crc初始值
|
||||
* @param buffer 输入缓冲区
|
||||
* @param len buffer大小（bytes）
|
||||
* @return uint8_t crc
|
||||
*/
|
||||
uint8_t crc7(uint8_t crc, const uint8_t *buffer, size_t len);
|
||||
12
kernel/src/common/crc8.h
Normal file
12
kernel/src/common/crc8.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
|
||||
/**
|
||||
* @brief 计算crc8
|
||||
*
|
||||
* @param crc crc初始值
|
||||
* @param buffer 输入缓冲区
|
||||
* @param len buffer大小（bytes）
|
||||
* @return uint8_t crc
|
||||
*/
|
||||
uint8_t crc8(uint8_t crc, const uint8_t *buffer, size_t len);
|
||||
11
kernel/src/common/dirent.h
Normal file
11
kernel/src/common/dirent.h
Normal file
@ -0,0 +1,11 @@
|
||||
#pragma once
|
||||
|
||||
#include <common/sys/types.h>
|
||||
struct dirent
|
||||
{
|
||||
ino_t d_ino; // 文件序列号
|
||||
off_t d_off; // dir偏移量
|
||||
unsigned short d_reclen; // 目录下的记录数
|
||||
unsigned char d_type; // entry的类型
|
||||
char d_name[]; // 文件entry的名字（是一个零长度的数组）
|
||||
};
|
||||
367
kernel/src/common/elf.h
Normal file
367
kernel/src/common/elf.h
Normal file
@ -0,0 +1,367 @@
|
||||
#pragma once
|
||||
#include <common/glib.h>
|
||||
|
||||
// --> begin ==============EHDR=====================
|
||||
// Reference: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-43405.html#scrolltoc
|
||||
|
||||
// ====== ELF32 Header中的数据类型定义 ====
|
||||
typedef uint32_t Elf32_Addr;
|
||||
typedef uint16_t Elf32_Half;
|
||||
typedef uint32_t Elf32_Off;
|
||||
typedef uint32_t Elf32_SWord;
|
||||
typedef uint32_t Elf32_Word;
|
||||
|
||||
// ====== ELF64 Header中的数据类型定义 ====
|
||||
typedef uint64_t Elf64_Addr;
|
||||
typedef uint16_t Elf64_Half;
|
||||
typedef uint64_t Elf64_Off;
|
||||
typedef uint32_t Elf64_Sword;
|
||||
typedef uint32_t Elf64_Word;
|
||||
typedef uint64_t Elf64_Xword;
|
||||
typedef uint64_t Elf64_Sxword;
|
||||
|
||||
// ====== ELF Identification Index ======
|
||||
// Purpose: File identification
|
||||
#define EI_MAG0 0
|
||||
#define EI_MAG1 1
|
||||
#define EI_MAG2 2
|
||||
#define EI_MAG3 3
|
||||
// Purpose: File class
|
||||
#define EI_CLASS 4
|
||||
// Purpose: Data encoding
|
||||
#define EI_DATA 5
|
||||
// Purpose: File version
|
||||
#define EI_VERSION 6 // e_ident[EI_VERSION]指定了ELF header的版本号 当前这个值必须是EV_CURRENT
|
||||
|
||||
// Purpose: Operating system/ABI identification
|
||||
#define EI_OSABI 7 // e_ident[EI_OSABI]指定了操作系统以及对象所对应的ABI
|
||||
|
||||
// Purpose: ABI version
|
||||
#define EI_ABIVERSION 8 // e_ident[EI_ABIVERSION] 指定了对象所对应的ABI版本.
|
||||
|
||||
// Purpose: Start of padding bytes
|
||||
#define EI_PAD 9 // 这个值标志了e_ident中未使用字节的的起始下标
|
||||
// Purpose: Size of e_ident[]
|
||||
#define EI_NIDENT 16
|
||||
|
||||
// EI_MAG0 - EI_MAG3 这是一个4byte的 magic number
|
||||
#define ELFMAG0 0x7f
|
||||
#define ELFMAG1 'E'
|
||||
#define ELFMAG2 'L'
|
||||
#define ELFMAG3 'F'
|
||||
|
||||
// EI_CLASS e_ident[EI_CLASS]指明了文件的类型或capacity
|
||||
#define ELFCLASSNONE 0 // Invalid class
|
||||
#define ELFCLASS32 1 // 32–bit objects
|
||||
#define ELFCLASS64 2 // 64–bit objects
|
||||
|
||||
// EI_DATA e_ident[EI_DATA]指明了与处理器相关的数据的编码方式
|
||||
#define ELFDATANONE 0
|
||||
#define ELFDATA2LSB 1 // 小端对齐
|
||||
#define ELFDATA2MSB 2 // 大端对齐
|
||||
|
||||
// ELF e_type的类型定义
|
||||
#define ET_NONE 0 // No file type
|
||||
#define ET_REL 1 // Relocatable file
|
||||
#define ET_EXEC 2 // Executable file
|
||||
#define ET_DYN 3 // Shared object file
|
||||
#define ET_CORE 4 // Core file
|
||||
#define ET_LOPROC 0xff00 // Processor-specific
|
||||
#define ET_HIPROC 0xffff // Processor-specific
|
||||
|
||||
// e_machine的类型定义
|
||||
#define EM_NONE 0 // No machine
|
||||
#define EM_SPARC 2 // SPARC
|
||||
#define EM_386 3 // Intel 80386
|
||||
#define EM_SPARC32PLUS 18 // Sun SPARC 32+
|
||||
#define EM_SPARCV9 43 // SPARC V9
|
||||
#define EM_AMD64 62 // AMD 64
|
||||
|
||||
// e_version的类型定义
|
||||
#define EV_NONE 0 // Invalid Version
|
||||
// EV_CURRENT: Value>=1 means current version
|
||||
|
||||
// e_flags 定义
|
||||
// e_flags for SPARC
|
||||
#define EF_SPARC_EXT_MASK 0xffff00 // Vendor Extension mask
|
||||
#define EF_SPARC_32PLUS 0x000100 // Generic V8+ features
|
||||
#define EF_SPARC_SUN_US1 0x000200 // Sun UltraSPARC 1 Extensions
|
||||
#define EF_SPARC_HAL_R1 0x000400 // HAL R1 Extensions
|
||||
#define EF_SPARC_SUN_US3 0x000800 // Sun UltraSPARC 3 Extensions
|
||||
#define EF_SPARCV9_MM 0x3 // Mask for Memory Model
|
||||
#define EF_SPARCV9_TSO 0x0 // Total Store Ordering
|
||||
#define EF_SPARCV9_PSO 0x1 // Partial Store Ordering
|
||||
#define EF_SPARCV9_RMO 0x2 // Relaxed Memory Ordering
|
||||
|
||||
#define PN_XNUM 0xffff
|
||||
|
||||
typedef struct
|
||||
{
|
||||
unsigned char e_ident[EI_NIDENT];
|
||||
Elf32_Half e_type;
|
||||
Elf32_Half e_machine;
|
||||
Elf32_Word e_version;
|
||||
Elf32_Addr e_entry;
|
||||
Elf32_Off e_phoff;
|
||||
Elf32_Off e_shoff;
|
||||
Elf32_Word e_flags;
|
||||
Elf32_Half e_ehsize;
|
||||
Elf32_Half e_phentsize;
|
||||
Elf32_Half e_phnum;
|
||||
Elf32_Half e_shentsize;
|
||||
Elf32_Half e_shnum;
|
||||
Elf32_Half e_shstrndx;
|
||||
} Elf32_Ehdr;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
unsigned char e_ident[EI_NIDENT]; // 标志字节，这些字节与机器架构类型无关。目的是为了告诉我们如何解析这个文件的内容
|
||||
Elf64_Half e_type; // 文件类型标志符
|
||||
Elf64_Half e_machine; // 该文件依赖的处理器架构类型
|
||||
Elf64_Word e_version; // 对象文件的版本
|
||||
Elf64_Addr e_entry; // 进程的虚拟地址入点，使用字节偏移量表示。如果没有entry point，则该值为0
|
||||
Elf64_Off e_phoff; // The program header table's file offset in bytes. 若没有，则为0
|
||||
Elf64_Off e_shoff; // The section header table's file offset in bytes. 若没有，则为0
|
||||
Elf64_Word e_flags; // 与处理器相关联的flags。格式为： EF_machine_flag 如果是x86架构，那么该值为0
|
||||
Elf64_Half e_ehsize; // ELF Header的大小（单位：字节）
|
||||
Elf64_Half e_phentsize; // 程序的program header table中的一个entry的大小（所有的entry大小相同）
|
||||
Elf64_Half e_phnum; // program header table的entry数量
|
||||
// e_phentsize*e_phnum=program header table的大小
|
||||
// 如果没有program header table，该值为0
|
||||
// 如果entry num>=PN_XNUM(0xffff), 那么该值为0xffff，且真实的pht的entry数量存储在section header的sh_info中（index=0）
|
||||
// 其他情况下，第一个section header entry的sh_info的值为0
|
||||
|
||||
Elf64_Half e_shentsize; // 每个section header的大小（字节
|
||||
// 每个section header是section header table的一个entry
|
||||
|
||||
Elf64_Half e_shnum; // section header table的entry数量
|
||||
// e_shentsize*e_shnum=section header table的大小
|
||||
// 如果没有section header table，那么该值为0
|
||||
// 如果section的数量>=SHN_LORESERVE(0xff00)，那么该值为0，且真实的section数量存储在
|
||||
// section header at index 0的sh_size变量中，否则第一个sh_size为0
|
||||
|
||||
Elf64_Half e_shstrndx; // 与section name string表相关联的section header table的entry的索引下标
|
||||
// 如果没有name string table,那么该值等于SHN_UNDEF
|
||||
// 如果对应的index>=SHN_LORESERVE(0xff00)， 那么该变量值为SHN_XINDEX(0xffff)
|
||||
// 且真正的section name string table的index被存放在section header的index=0处的sh_link变量中
|
||||
// 否则初始section header entry的sh_link变量为0
|
||||
} Elf64_Ehdr;
|
||||
|
||||
// --> end ==============EHDR=====================
|
||||
|
||||
// --> begin ==============SHDR=====================
|
||||
|
||||
// reference: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-94076.html#scrolltoc
|
||||
|
||||
// ===== ELF Special Section Indexes =====
|
||||
#define SHN_UNDEF 0 // An undefined, missing, irrelevant, or otherwise meaningless section reference.
|
||||
#define SHN_LORESERVE 0xff00 // The lower boundary of the range of reserved indexes.
|
||||
// The system reserves indexes between SHN_LORESERVE and SHN_HIRESERVE, inclusive.
|
||||
#define SHN_LOPROC 0xff00 // SHN_LOPROC - SHN_HIPROC 这个范围以内的数据为处理器特定的语义所保留
|
||||
#define SHN_BEFORE 0xff00 // SHN_BEFORE, SHN_AFTER 与SHF_LINK_ORDER及SHF_ORDERED section flags一起，提供初始和终止section的
|
||||
#define SHN_AFTER 0xff01
|
||||
#define SHN_AMD64_LCOMMON 0xff02 // x64 specific common block label. This label is similar to SHN_COMMON, but provides for identifying a large common block.
|
||||
#define SHN_HIPROC 0xff1f
|
||||
#define SHN_LOOS 0xff20 // SHN_LOOS - SHN_HIOS 这个范围你的数为操作系统特定的语义所保留
|
||||
#define SHN_LOSUNW 0xff3f // SHN_LOSUNW - SHN_HISUNW Values in this inclusive range are reserved for Sun-specific semantics.
|
||||
#define SHN_SUNW_IGNORE 0xff3f // This section index provides a temporary symbol definition within relocatable objects. Reserved for internal use by dtrace(1M).
|
||||
#define SHN_HISUNW 0xff3f
|
||||
#define SHN_HIOS 0xff3f
|
||||
#define SHN_ABS 0xfff1 // 对应的引用的绝对值。 举个例子，symbols defined relative to section number SHN_ABS have absolute values and are not affected by relocation.
|
||||
#define SHN_COMMON 0xfff2 // Symbols defined relative to this section are common symbols
|
||||
#define SHN_XINDEX 0xffff
|
||||
#define SHN_HIRESERVE 0xffff // The upper boundary of the range of reserved indexes.
|
||||
/*
|
||||
Note -
|
||||
Although index 0 is reserved as the undefined value,
|
||||
the section header table contains an entry for index 0.
|
||||
That is, if the e_shnum member of the ELF header indicates
|
||||
a file has 6 entries in the section header table, the sections
|
||||
have the indexes 0 through 5. The contents of the initial entry
|
||||
are specified later in this section.
|
||||
*/
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Word sh_name;
|
||||
Elf32_Word sh_type;
|
||||
Elf32_Word sh_flags;
|
||||
Elf32_Addr sh_addr;
|
||||
Elf32_Off sh_offset;
|
||||
Elf32_Word sh_size;
|
||||
Elf32_Word sh_link;
|
||||
Elf32_Word sh_info;
|
||||
Elf32_Word sh_addralign;
|
||||
Elf32_Word sh_entsize;
|
||||
} Elf32_Shdr;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf64_Word sh_name; // 段名
|
||||
Elf64_Word sh_type; // 段的类型（按照内容和语义来分类）
|
||||
Elf64_Xword sh_flags;
|
||||
Elf64_Addr sh_addr; // 该section在进程的内存空间中的基地址。如果该段不需要出现在内存中，该值为0
|
||||
Elf64_Off sh_offset; // The byte offset from the beginning of the file to the first byte in the section
|
||||
// 对于一个 SHT_NOBITS section，这个变量指的是概念上的偏移量。因为这种段并不是真正存在于文件中
|
||||
Elf64_Xword sh_size; // The section's size in bytes(如果是SHT_NOBITS类型的section，section不会在文件中真正占用sh_size的空间)
|
||||
Elf64_Word sh_link; // A section header table index link, whose interpretation depends on the section type.
|
||||
Elf64_Word sh_info; // 依赖于section type来解析的额外的信息。如果sh_flags有SHF_INFO_LINK属性，那么这个变量代表一个section header table index.
|
||||
Elf64_Xword sh_addralign; // 地址按照多少bytes对齐。只允许使用2的n次幂的值。如果值为0或1，则意味着地址没有对齐要求。
|
||||
Elf64_Xword sh_entsize; // 如果某个段拥有指定size的entry，则在这里指定，否则为0
|
||||
} Elf64_Shdr;
|
||||
|
||||
// ELF Section Types, sh_type
|
||||
#define SHT_NULL 0
|
||||
#define SHT_PROGBITS 1
|
||||
#define SHT_SYMTAB 2 // Identifies a symbol table
|
||||
#define SHT_STRTAB 3 // Identifies a string table.
|
||||
#define SHT_RELA 4
|
||||
#define SHT_HASH 5
|
||||
#define SHT_DYNAMIC 6
|
||||
#define SHT_NOTE 7
|
||||
#define SHT_NOBITS 8
|
||||
#define SHT_REL 9
|
||||
#define SHT_SHLIB 10
|
||||
#define SHT_DYNSYM 11 // Identifies a symbol table
|
||||
#define SHT_INIT_ARRAY 14
|
||||
#define SHT_FINI_ARRAY 15
|
||||
#define SHT_PREINIT_ARRAY 16
|
||||
#define SHT_GROUP 17
|
||||
#define SHT_SYMTAB_SHNDX 18
|
||||
#define SHT_LOOS 0x60000000
|
||||
#define SHT_LOSUNW 0x6fffffef
|
||||
#define SHT_SUNW_capchain 0x6fffffef
|
||||
#define SHT_SUNW_capinfo 0x6ffffff0
|
||||
#define SHT_SUNW_symsort 0x6ffffff1
|
||||
#define SHT_SUNW_tlssort 0x6ffffff2
|
||||
#define SHT_SUNW_LDYNSYM 0x6ffffff3 // Identifies a symbol table
|
||||
#define SHT_SUNW_dof 0x6ffffff4
|
||||
#define SHT_SUNW_cap 0x6ffffff5
|
||||
#define SHT_SUNW_SIGNATURE 0x6ffffff6
|
||||
#define SHT_SUNW_ANNOTATE 0x6ffffff7
|
||||
#define SHT_SUNW_DEBUGSTR 0x6ffffff8
|
||||
#define SHT_SUNW_DEBUG 0x6ffffff9
|
||||
#define SHT_SUNW_move 0x6ffffffa
|
||||
#define SHT_SUNW_COMDAT 0x6ffffffb
|
||||
#define SHT_SUNW_syminfo 0x6ffffffc
|
||||
#define SHT_SUNW_verdef 0x6ffffffd
|
||||
#define SHT_SUNW_verneed 0x6ffffffe
|
||||
#define SHT_SUNW_versym 0x6fffffff
|
||||
#define SHT_HISUNW 0x6fffffff
|
||||
#define SHT_HIOS 0x6fffffff
|
||||
#define SHT_LOPROC 0x70000000
|
||||
#define SHT_SPARC_GOTDATA 0x70000000
|
||||
#define SHT_AMD64_UNWIND 0x70000001
|
||||
#define SHT_HIPROC 0x7fffffff
|
||||
#define SHT_LOUSER 0x80000000
|
||||
#define SHT_HIUSER 0xffffffff
|
||||
|
||||
// ELF Section Attribute Flags
|
||||
#define SHF_WRITE 0x1 // Identifies a section that should be writable during process execution
|
||||
#define SHF_ALLOC 0x2 // Identifies a section that occupies memory during process execution
|
||||
#define SHF_EXECINSTR 0x4 // contains executable machine instructions
|
||||
#define SHF_MERGE 0x10
|
||||
#define SHF_STRINGS 0x20
|
||||
#define SHF_INFO_LINK 0x40 // This section headers sh_info field holds a section header table index
|
||||
#define SHF_LINK_ORDER 0x80 // This section adds special ordering requirements to the link-editor
|
||||
#define SHF_OS_NONCONFORMING 0x100
|
||||
#define SHF_GROUP 0x200
|
||||
#define SHF_TLS 0x400
|
||||
#define SHF_MASKOS 0x0ff00000
|
||||
#define SHF_AMD64_LARGE 0x10000000 // identifies a section that can hold more than 2 Gbyte
|
||||
#define SHF_ORDERED 0x40000000
|
||||
#define SHF_EXCLUDE 0x80000000
|
||||
#define SHF_MASKPROC 0xf0000000
|
||||
|
||||
// --> end ==============SHDR=====================
|
||||
|
||||
// --> begin ========== symbol table section ======
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Word st_name;
|
||||
Elf32_Addr st_value;
|
||||
Elf32_Word st_size;
|
||||
unsigned char st_info;
|
||||
unsigned char st_other;
|
||||
Elf32_Half st_shndx;
|
||||
} Elf32_Sym;
|
||||
typedef struct
|
||||
{
|
||||
Elf64_Word st_name;
|
||||
unsigned char st_info;
|
||||
unsigned char st_other;
|
||||
Elf64_Half st_shndx;
|
||||
Elf64_Addr st_value;
|
||||
Elf64_Xword st_size;
|
||||
} Elf64_Sym;
|
||||
|
||||
// --> end ========== symbol table section ======
|
||||
|
||||
// --> begin ========== program header =========
|
||||
// Ref: https://docs.oracle.com/cd/E23824_01/html/819-0690/chapter6-83432.html#scrolltoc
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf32_Word p_type;
|
||||
Elf32_Off p_offset;
|
||||
Elf32_Addr p_vaddr;
|
||||
Elf32_Addr p_paddr;
|
||||
Elf32_Word p_filesz;
|
||||
Elf32_Word p_memsz;
|
||||
Elf32_Word p_flags;
|
||||
Elf32_Word p_align;
|
||||
} Elf32_Phdr;
|
||||
|
||||
typedef struct
|
||||
{
|
||||
Elf64_Word p_type;
|
||||
Elf64_Word p_flags;
|
||||
Elf64_Off p_offset;
|
||||
Elf64_Addr p_vaddr;
|
||||
Elf64_Addr p_paddr;
|
||||
Elf64_Xword p_filesz;
|
||||
Elf64_Xword p_memsz;
|
||||
Elf64_Xword p_align;
|
||||
} Elf64_Phdr;
|
||||
|
||||
// ELF segment types
|
||||
#define PT_NULL 0
|
||||
#define PT_LOAD 1 // Specifies a loadable segment
|
||||
#define PT_DYNAMIC 2 // Specifies dynamic linking information.
|
||||
#define PT_INTERP 3 // Specifies the location and size of a null-terminated path name to invoke as an interpreter
|
||||
#define PT_NOTE 4 // Specifies the location and size of auxiliary information
|
||||
#define PT_SHLIB 5
|
||||
#define PT_PHDR 6 // Specifies the location and size of the program header table
|
||||
#define PT_TLS 7 // Specifies a thread-local storage template
|
||||
/*
|
||||
PT_LOOS - PT_HIOS
|
||||
Values in this inclusive range are reserved for OS-specific semantics.
|
||||
*/
|
||||
#define PT_LOOS 0x60000000
|
||||
#define PT_SUNW_UNWIND 0x6464e550
|
||||
#define PT_SUNW_EH_FRAME 0x6474e550
|
||||
#define PT_LOSUNW 0x6ffffffa
|
||||
#define PT_SUNWBSS 0x6ffffffa
|
||||
#define PT_SUNWSTACK 0x6ffffffb
|
||||
#define PT_SUNWDTRACE 0x6ffffffc
|
||||
#define PT_SUNWCAP 0x6ffffffd
|
||||
#define PT_HISUNW 0x6fffffff
|
||||
#define PT_HIOS 0x6fffffff
|
||||
#define PT_LOPROC 0x70000000
|
||||
#define PT_HIPROC 0x7fffffff
|
||||
|
||||
// ELF Segment Flags
|
||||
#define PF_X 0x1 // Execute
|
||||
#define PF_W 0x2 // Write
|
||||
#define PF_R 0x4 // Read
|
||||
#define PF_MASKPROC 0xf0000000 // Unspecified
|
||||
|
||||
|
||||
// --> end ========== program header =========
|
||||
|
||||
/**
|
||||
* @brief 校验是否为ELF文件
|
||||
*
|
||||
* @param ehdr
|
||||
*/
|
||||
bool elf_check(void * ehdr);
|
||||
46
kernel/src/common/err.h
Normal file
46
kernel/src/common/err.h
Normal file
@ -0,0 +1,46 @@
|
||||
#pragma once
|
||||
#include <common/compiler.h>
|
||||
#include <stdint.h>
|
||||
#define MAX_ERRNO 4095
|
||||
|
||||
#define IS_ERR_VALUE(x) unlikely((x) >= (uint64_t)-MAX_ERRNO)
|
||||
|
||||
/**
|
||||
* @brief 判断返回的指针是否为errno
|
||||
*
|
||||
* @param ptr 待校验的指针
|
||||
* @return long 1 => 是错误码
|
||||
* 0 => 不是错误码
|
||||
*/
|
||||
static inline long __must_check IS_ERR(const void* ptr)
|
||||
{
|
||||
return IS_ERR_VALUE((uint64_t)ptr);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 判断返回的指针是否为errno或者为空
|
||||
*
|
||||
* @param ptr 待校验的指针
|
||||
* @return long 1 => 是错误码或NULL
|
||||
* 0 => 不是错误码或NULL
|
||||
*/
|
||||
static inline long __must_check IS_ERR_OR_NULL(const void* ptr)
|
||||
{
|
||||
return !ptr || IS_ERR_VALUE((uint64_t)ptr);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 将错误码转换为指针
|
||||
*
|
||||
* @param error 错误码
|
||||
* @return void* 转换后的指针
|
||||
*/
|
||||
static inline void* __must_check ERR_PTR(long error)
|
||||
{
|
||||
return (void*)(error);
|
||||
}
|
||||
|
||||
static inline long __must_check PTR_ERR(void * ptr)
|
||||
{
|
||||
return (long)ptr;
|
||||
}
|
||||
101
kernel/src/common/errno.h
Normal file
101
kernel/src/common/errno.h
Normal file
@ -0,0 +1,101 @@
|
||||
/**
|
||||
* @file errno.h
|
||||
* @author fslongjin (longjin@RinGoTek.cn)
|
||||
* @brief
|
||||
* @version 0.1
|
||||
* @date 2022-04-22
|
||||
*
|
||||
* @copyright Copyright (c) 2022
|
||||
*
|
||||
*/
|
||||
#pragma once
|
||||
|
||||
#define E2BIG 1 /* 参数列表过长，或者在输出buffer中缺少空间 或者参数比系统内建的最大值要大 Argument list too long. */
|
||||
#define EACCES 2 /* 访问被拒绝 Permission denied */
|
||||
#define EADDRINUSE 3 /* 地址正在被使用 Address in use.*/
|
||||
#define EADDRNOTAVAIL 4 /* 地址不可用 Address not available.*/
|
||||
#define EAFNOSUPPORT 5 /* 地址family不支持 Address family not supported. */
|
||||
#define EAGAIN 6 /* 资源不可用，请重试。 Resource unavailable, try again (may be the same value as [EWOULDBLOCK]).*/
|
||||
#define EALREADY 7 /* 连接已经在处理 Connection already in progress. */
|
||||
#define EBADF 8 /* 错误的文件描述符 Bad file descriptor. */
|
||||
#define EBADMSG 9 /* 错误的消息 Bad message. */
|
||||
|
||||
#define EBUSY 10 /* 设备或资源忙 Device or resource busy. */
|
||||
#define ECANCELED 11 /* 操作被取消 Operation canceled. */
|
||||
#define ECHILD 12 /* 没有子进程 No child processes. */
|
||||
#define ECONNABORTED 13 /* 连接已断开 Connection aborted. */
|
||||
#define ECONNREFUSED 14 /* 连接被拒绝 Connection refused. */
|
||||
#define ECONNRESET 15 /* 连接被重置 Connection reset. */
|
||||
#define EDEADLK 16 /* 资源死锁将要发生 Resource deadlock would occur. */
|
||||
#define EDESTADDRREQ 17 /* 需要目标地址 Destination address required.*/
|
||||
#define EDOM 18 /* 数学参数超出作用域 Mathematics argument out of domain of function. */
|
||||
#define EDQUOT 19 /* 保留使用 Reserved */
|
||||
|
||||
#define EEXIST 20 /* 文件已存在 File exists. */
|
||||
#define EFAULT 21 /* 错误的地址 Bad address */
|
||||
#define EFBIG 22 /* 文件太大 File too large. */
|
||||
#define EHOSTUNREACH 23 /* 主机不可达 Host is unreachable.*/
|
||||
#define EIDRM 24 /* 标志符被移除 Identifier removed. */
|
||||
#define EILSEQ 25 /* 不合法的字符序列 Illegal byte sequence. */
|
||||
#define EINPROGRESS 26 /* 操作正在处理 Operation in progress. */
|
||||
#define EINTR 27 /* 被中断的函数 Interrupted function. */
|
||||
#define EINVAL 28 /* 不可用的参数 Invalid argument. */
|
||||
#define EIO 29 /* I/O错误 I/O error. */
|
||||
|
||||
#define EISCONN 30 /* 套接字已连接 Socket is connected. */
|
||||
#define EISDIR 31 /* 是一个目录 Is a directory */
|
||||
#define ELOOP 32 /* 符号链接级别过多 Too many levels of symbolic links. */
|
||||
#define EMFILE 33 /* 文件描述符的值过大 File descriptor value too large. */
|
||||
#define EMLINK 34 /* 链接数过多 Too many links. */
|
||||
#define EMSGSIZE 35 /* 消息过大 Message too large. */
|
||||
#define EMULTIHOP 36 /* 保留使用 Reserved. */
|
||||
#define ENAMETOOLONG 37 /* 文件名过长 Filename too long. */
|
||||
#define ENETDOWN 38 /* 网络已关闭 Network is down. */
|
||||
#define ENETRESET 39 /* 网络连接已断开 Connection aborted by network. */
|
||||
|
||||
#define ENETUNREACH 40 /* 网络不可达 Network unreachable. */
|
||||
#define ENFILE 41 /* 系统中打开的文件过多 Too many files open in system.*/
|
||||
#define ENOBUFS 42 /* 缓冲区空间不足 No buffer space available. */
|
||||
#define ENODATA 43 /* 队列头没有可读取的消息 No message is available on the STREAM head read queue. */
|
||||
#define ENODEV 44 /* 没有指定的设备 No such device. */
|
||||
#define ENOENT 45 /* 没有指定的文件或目录 No such file or directory. */
|
||||
#define ENOEXEC 46 /* 可执行文件格式错误 Executable file format error. */
|
||||
#define ENOLCK 47 /* 没有可用的锁 No locks available. */
|
||||
#define ENOLINK 48 /* 保留 Reserved. */
|
||||
#define ENOMEM 49 /* 没有足够的空间 Not enough space. */
|
||||
|
||||
#define ENOMSG 50 /* 没有期待类型的消息 No message of the desired type. */
|
||||
#define ENOPROTOOPT 51 /* 协议不可用 Protocol not available. */
|
||||
#define ENOSPC 52 /* 设备上没有空间 No space left on device. */
|
||||
#define ENOSR 53 /* 没有STREAM资源 No STREAM resources.*/
|
||||
#define ENOSTR 54 /* 不是STREAM Not a STREAM */
|
||||
#define ENOSYS 55 /* 功能不支持 Function not supported. */
|
||||
#define ENOTCONN 56 /* 套接字未连接 The socket is not connected. */
|
||||
#define ENOTDIR 57 /* 不是目录 Not a directory. */
|
||||
#define ENOTEMPTY 58 /* 目录非空 Directory not empty. */
|
||||
#define ENOTRECOVERABLE 59 /* 状态不可覆盖 State not recoverable. */
|
||||
|
||||
#define ENOTSOCK 60 /* 不是一个套接字 Not a socket.*/
|
||||
#define ENOTSUP 61 /* 不被支持 Not supported (may be the same value as [EOPNOTSUPP]). */
|
||||
#define ENOTTY 62 /* 不正确的I/O控制操作 Inappropriate I/O control operation. */
|
||||
#define ENXIO 63 /* 没有这样的设备或地址 No such device or address. */
|
||||
#define EOPNOTSUPP 64 /* 套接字不支持该操作 Operation not supported on socket (may be the same value as [ENOTSUP]). */
|
||||
#define EOVERFLOW 65 /* 数值过大，产生溢出 Value too large to be stored in data type. */
|
||||
#define EOWNERDEAD 66 /* 之前的拥有者挂了 Previous owner died. */
|
||||
#define EPERM 67 /* 操作不被允许 Operation not permitted. */
|
||||
#define EPIPE 68 /* 断开的管道 Broken pipe. */
|
||||
#define EPROTO 69 /* 协议错误 Protocol error. */
|
||||
|
||||
#define EPROTONOSUPPORT 70 /* 协议不被支持 Protocol not supported. */
|
||||
#define EPROTOTYPE 71 /* 对于套接字而言，错误的协议 Protocol wrong type for socket. */
|
||||
#define ERANGE 72 /* 结果过大 Result too large. */
|
||||
#define EROFS 73 /* 只读的文件系统 Read-only file system. */
|
||||
#define ESPIPE 74 /* 错误的寻道 Invalid seek. */
|
||||
#define ESRCH 75 /* 没有这样的进程 No such process. */
|
||||
#define ESTALE 76 /* 保留 Reserved. */
|
||||
#define ETIME 77 /* 流式ioctl()超时 Stream ioctl() timeout */
|
||||
#define ETIMEDOUT 78 /* 连接超时 Connection timed out.*/
|
||||
#define ETXTBSY 79 /* 文本文件忙 Text file busy. */
|
||||
|
||||
#define EWOULDBLOCK 80 /* 操作将被禁止 Operation would block (may be the same value as [EAGAIN]). */
|
||||
#define EXDEV 81 /* 跨设备连接 Cross-device link. */
|
||||
55
kernel/src/common/fcntl.h
Normal file
55
kernel/src/common/fcntl.h
Normal file
@ -0,0 +1,55 @@
|
||||
/**
|
||||
* @file fcntl.h
|
||||
* @author fslongjin (longjin@RinGoTek.cn)
|
||||
* @brief
|
||||
* @version 0.1
|
||||
* @date 2022-04-26
|
||||
*
|
||||
* @copyright Copyright (c) 2022
|
||||
*
|
||||
*/
|
||||
#pragma once
|
||||
|
||||
#define O_RDONLY 00000000 // Open Read-only
|
||||
#define O_WRONLY 00000001 // Open Write-only
|
||||
#define O_RDWR 00000002 // Open read/write
|
||||
#define O_ACCMODE 00000003 // Mask for file access modes
|
||||
|
||||
#define O_CREAT 00000100 // Create file if it does not exist
|
||||
#define O_EXCL 00000200 // Fail if file already exists
|
||||
#define O_NOCTTY 00000400 // Do not assign controlling terminal
|
||||
|
||||
#define O_TRUNC 00001000 // 文件存在且是普通文件，并以O_RDWR或O_WRONLY打开，则它会被清空
|
||||
|
||||
#define O_APPEND 00002000 // 文件指针会被移动到文件末尾
|
||||
|
||||
#define O_NONBLOCK 00004000 // 非阻塞式IO模式
|
||||
|
||||
#define O_EXEC 00010000 // 以仅执行的方式打开（非目录文件）
|
||||
#define O_SEARCH 00020000 // Open the directory for search only
|
||||
#define O_DIRECTORY 00040000 // 打开的必须是一个目录
|
||||
#define O_NOFOLLOW 00100000 // Do not follow symbolic links
|
||||
|
||||
/*
|
||||
* The constants AT_REMOVEDIR and AT_EACCESS have the same value. AT_EACCESS is
|
||||
* meaningful only to faccessat, while AT_REMOVEDIR is meaningful only to
|
||||
* unlinkat. The two functions do completely different things and therefore,
|
||||
* the flags can be allowed to overlap. For example, passing AT_REMOVEDIR to
|
||||
* faccessat would be undefined behavior and thus treating it equivalent to
|
||||
* AT_EACCESS is valid undefined behavior.
|
||||
*/
|
||||
// 作为当前工作目录的文件描述符（用于指代cwd）
|
||||
#define AT_FDCWD -100
|
||||
#define AT_SYMLINK_NOFOLLOW 0x100 /* Do not follow symbolic links. */
|
||||
#define AT_EACCESS 0x200 /* Test access permitted for effective IDs, not real IDs. */
|
||||
#define AT_REMOVEDIR 0x200 /* Remove directory instead of unlinking file. */
|
||||
#define AT_SYMLINK_FOLLOW 0x400 /* Follow symbolic links. */
|
||||
#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */
|
||||
#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
|
||||
|
||||
#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */
|
||||
#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */
|
||||
#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */
|
||||
#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */
|
||||
|
||||
#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */
|
||||
316
kernel/src/common/font.h
Normal file
316
kernel/src/common/font.h
Normal file
@ -0,0 +1,316 @@
|
||||
#pragma once
|
||||
|
||||
unsigned char font_ascii[256][16]=
|
||||
{
|
||||
/* 0000 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0010 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0020 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0030 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00,0x10,0x10,0x00,0x00}, //33 '!'
|
||||
{0x28,0x28,0x28,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // '"'
|
||||
{0x00,0x44,0x44,0x44,0xfe,0x44,0x44,0x44,0x44,0x44,0xfe,0x44,0x44,0x44,0x00,0x00}, // '#'
|
||||
{0x10,0x3a,0x56,0x92,0x92,0x90,0x50,0x38,0x14,0x12,0x92,0x92,0xd4,0xb8,0x10,0x10}, // '$'
|
||||
{0x62,0x92,0x94,0x94,0x68,0x08,0x10,0x10,0x20,0x2c,0x52,0x52,0x92,0x8c,0x00,0x00}, // '%'
|
||||
{0x00,0x70,0x88,0x88,0x88,0x90,0x60,0x47,0xa2,0x92,0x8a,0x84,0x46,0x39,0x00,0x00}, // '&'
|
||||
{0x04,0x08,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // '''
|
||||
|
||||
/* 0040 */
|
||||
{0x02,0x04,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x08,0x08,0x04,0x02,0x00}, // '('
|
||||
{0x80,0x40,0x20,0x20,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x20,0x20,0x40,0x80,0x00}, // ')'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x10,0x92,0x54,0x38,0x54,0x92,0x10,0x00,0x00,0x00,0x00}, // '*'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x10,0xfe,0x10,0x10,0x10,0x00,0x00,0x00,0x00}, // '+'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x08,0x08,0x10}, // ','
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xfe,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // '-'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00}, // '.'
|
||||
{0x02,0x02,0x04,0x04,0x08,0x08,0x08,0x10,0x10,0x20,0x20,0x40,0x40,0x40,0x80,0x80}, // '/'
|
||||
{0x00,0x18,0x24,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x24,0x18,0x00,0x00}, //48 '0'
|
||||
{0x00,0x08,0x18,0x28,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x3e,0x00,0x00}, // '1'
|
||||
|
||||
/* 0050 */
|
||||
{0x00,0x18,0x24,0x42,0x42,0x02,0x04,0x08,0x10,0x20,0x20,0x40,0x40,0x7e,0x00,0x00}, // '2'
|
||||
{0x00,0x18,0x24,0x42,0x02,0x02,0x04,0x18,0x04,0x02,0x02,0x42,0x24,0x18,0x00,0x00}, // '3'
|
||||
{0x00,0x0c,0x0c,0x0c,0x14,0x14,0x14,0x24,0x24,0x44,0x7e,0x04,0x04,0x1e,0x00,0x00}, // '4'
|
||||
{0x00,0x7c,0x40,0x40,0x40,0x58,0x64,0x02,0x02,0x02,0x02,0x42,0x24,0x18,0x00,0x00}, // '5'
|
||||
{0x00,0x18,0x24,0x42,0x40,0x58,0x64,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00}, // '6'
|
||||
{0x00,0x7e,0x42,0x42,0x04,0x04,0x08,0x08,0x08,0x10,0x10,0x10,0x10,0x38,0x00,0x00}, // '7'
|
||||
{0x00,0x18,0x24,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x24,0x18,0x00,0x00}, // '8'
|
||||
{0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x26,0x1a,0x02,0x42,0x24,0x18,0x00,0x00}, // '9'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00}, //58 ':'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00,0x00,0x00,0x00,0x18,0x18,0x08,0x08,0x10}, // ';'
|
||||
|
||||
/* 0060 */
|
||||
{0x00,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x00}, // '<'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0xfe,0x00,0x00,0xfe,0x00,0x00,0x00,0x00,0x00,0x00}, // '='
|
||||
{0x00,0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x02,0x04,0x08,0x10,0x20,0x40,0x80,0x00}, // '>'
|
||||
{0x00,0x38,0x44,0x82,0x82,0x82,0x04,0x08,0x10,0x10,0x00,0x00,0x18,0x18,0x00,0x00}, // '?'
|
||||
{0x00,0x38,0x44,0x82,0x9a,0xaa,0xaa,0xaa,0xaa,0xaa,0x9c,0x80,0x46,0x38,0x00,0x00}, // '@'
|
||||
{0x00,0x18,0x18,0x18,0x18,0x24,0x24,0x24,0x24,0x7e,0x42,0x42,0x42,0xe7,0x00,0x00}, //65 'A'
|
||||
{0x00,0xf0,0x48,0x44,0x44,0x44,0x48,0x78,0x44,0x42,0x42,0x42,0x44,0xf8,0x00,0x00}, // 'B'
|
||||
{0x00,0x3a,0x46,0x42,0x82,0x80,0x80,0x80,0x80,0x80,0x82,0x42,0x44,0x38,0x00,0x00}, // 'C'
|
||||
{0x00,0xf8,0x44,0x44,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x44,0x44,0xf8,0x00,0x00}, // 'D'
|
||||
{0x00,0xfe,0x42,0x42,0x40,0x40,0x44,0x7c,0x44,0x40,0x40,0x42,0x42,0xfe,0x00,0x00}, // 'E'
|
||||
|
||||
/* 0070 */
|
||||
{0x00,0xfe,0x42,0x42,0x40,0x40,0x44,0x7c,0x44,0x44,0x40,0x40,0x40,0xf0,0x00,0x00}, // 'F'
|
||||
{0x00,0x3a,0x46,0x42,0x82,0x80,0x80,0x9e,0x82,0x82,0x82,0x42,0x46,0x38,0x00,0x00}, // 'G'
|
||||
{0x00,0xe7,0x42,0x42,0x42,0x42,0x42,0x7e,0x42,0x42,0x42,0x42,0x42,0xe7,0x00,0x00}, // 'H'
|
||||
{0x00,0x7c,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7c,0x00,0x00}, // 'I'
|
||||
{0x00,0x1f,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x84,0x48,0x30,0x00}, // 'J'
|
||||
{0x00,0xe7,0x42,0x44,0x48,0x50,0x50,0x60,0x50,0x50,0x48,0x44,0x42,0xe7,0x00,0x00}, // 'K'
|
||||
{0x00,0xf0,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x42,0x42,0xfe,0x00,0x00}, // 'L'
|
||||
{0x00,0xc3,0x42,0x66,0x66,0x66,0x5a,0x5a,0x5a,0x42,0x42,0x42,0x42,0xe7,0x00,0x00}, // 'M'
|
||||
{0x00,0xc7,0x42,0x62,0x62,0x52,0x52,0x52,0x4a,0x4a,0x4a,0x46,0x46,0xe2,0x00,0x00}, // 'N'
|
||||
{0x00,0x38,0x44,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x44,0x38,0x00,0x00}, // 'O'
|
||||
|
||||
/* 0080 */
|
||||
{0x00,0xf8,0x44,0x42,0x42,0x42,0x44,0x78,0x40,0x40,0x40,0x40,0x40,0xf0,0x00,0x00}, // 'P'
|
||||
{0x00,0x38,0x44,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x92,0x8a,0x44,0x3a,0x00,0x00}, // 'Q'
|
||||
{0x00,0xfc,0x42,0x42,0x42,0x42,0x7c,0x44,0x42,0x42,0x42,0x42,0x42,0xe7,0x00,0x00}, // 'R'
|
||||
{0x00,0x3a,0x46,0x82,0x82,0x80,0x40,0x38,0x04,0x02,0x82,0x82,0xc4,0xb8,0x00,0x00}, // 'S'
|
||||
{0x00,0xfe,0x92,0x92,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7c,0x00,0x00}, // 'T'
|
||||
{0x00,0xe7,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x3c,0x00,0x00}, // 'U'
|
||||
{0x00,0xe7,0x42,0x42,0x42,0x42,0x24,0x24,0x24,0x24,0x18,0x18,0x18,0x18,0x00,0x00}, // 'V'
|
||||
{0x00,0xe7,0x42,0x42,0x42,0x5a,0x5a,0x5a,0x5a,0x24,0x24,0x24,0x24,0x24,0x00,0x00}, // 'W'
|
||||
{0x00,0xe7,0x42,0x42,0x24,0x24,0x24,0x18,0x24,0x24,0x24,0x42,0x42,0xe7,0x00,0x00}, // 'X'
|
||||
{0x00,0xee,0x44,0x44,0x44,0x28,0x28,0x28,0x10,0x10,0x10,0x10,0x10,0x7c,0x00,0x00}, // 'Y'
|
||||
|
||||
/* 0090 */
|
||||
{0x00,0xfe,0x84,0x84,0x08,0x08,0x10,0x10,0x20,0x20,0x40,0x42,0x82,0xfe,0x00,0x00}, // 'Z'
|
||||
{0x00,0x3e,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x3e,0x00}, //91 '['
|
||||
{0x80,0x80,0x40,0x40,0x20,0x20,0x20,0x10,0x10,0x08,0x08,0x04,0x04,0x04,0x02,0x02}, // '\'
|
||||
{0x00,0x7c,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x7c,0x00}, // ']'
|
||||
{0x00,0x10,0x28,0x44,0x82,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // '^'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xfe,0x00}, // '_'
|
||||
{0x10,0x08,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // '`'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x70,0x08,0x04,0x3c,0x44,0x84,0x84,0x8c,0x76,0x00,0x00}, //97 'a'
|
||||
{0xc0,0x40,0x40,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x42,0x42,0x64,0x58,0x00,0x00}, // 'b'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x30,0x4c,0x84,0x84,0x80,0x80,0x82,0x44,0x38,0x00,0x00}, // 'c'
|
||||
|
||||
/* 0100 */
|
||||
{0x0c,0x04,0x04,0x04,0x04,0x34,0x4c,0x84,0x84,0x84,0x84,0x84,0x4c,0x36,0x00,0x00}, // 'd'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x38,0x44,0x82,0x82,0xfc,0x80,0x82,0x42,0x3c,0x00,0x00}, // 'e'
|
||||
{0x0e,0x10,0x10,0x10,0x10,0x7c,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7c,0x00,0x00}, // 'f'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x36,0x4c,0x84,0x84,0x84,0x84,0x4c,0x34,0x04,0x04,0x38}, // 'g'
|
||||
{0xc0,0x40,0x40,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x42,0x42,0x42,0xe3,0x00,0x00}, // 'h'
|
||||
{0x00,0x10,0x10,0x00,0x00,0x30,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00}, // 'i'
|
||||
{0x00,0x04,0x04,0x00,0x00,0x0c,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x08,0x08,0x30}, // 'j'
|
||||
{0xc0,0x40,0x40,0x40,0x40,0x4e,0x44,0x48,0x50,0x60,0x50,0x48,0x44,0xe6,0x00,0x00}, // 'k'
|
||||
{0x30,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00}, // 'l'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xf6,0x49,0x49,0x49,0x49,0x49,0x49,0x49,0xdb,0x00,0x00}, // 'm'
|
||||
|
||||
/* 0110 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0xd8,0x64,0x42,0x42,0x42,0x42,0x42,0x42,0xe3,0x00,0x00}, // 'n'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x38,0x44,0x82,0x82,0x82,0x82,0x82,0x44,0x38,0x00,0x00}, // 'o'
|
||||
{0x00,0x00,0x00,0x00,0xd8,0x64,0x42,0x42,0x42,0x42,0x42,0x64,0x58,0x40,0x40,0xe0}, // 'p'
|
||||
{0x00,0x00,0x00,0x00,0x34,0x4c,0x84,0x84,0x84,0x84,0x84,0x4c,0x34,0x04,0x04,0x0e}, // 'q'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xdc,0x62,0x42,0x40,0x40,0x40,0x40,0x40,0xe0,0x00,0x00}, // 'r'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x7a,0x86,0x82,0xc0,0x38,0x06,0x82,0xc2,0xbc,0x00,0x00}, // 's'
|
||||
{0x00,0x00,0x10,0x10,0x10,0x7c,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x0e,0x00,0x00}, // 't'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xc6,0x42,0x42,0x42,0x42,0x42,0x42,0x46,0x3b,0x00,0x00}, // 'u'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xe7,0x42,0x42,0x42,0x24,0x24,0x24,0x18,0x18,0x00,0x00}, // 'v'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xe7,0x42,0x42,0x5a,0x5a,0x5a,0x24,0x24,0x24,0x00,0x00}, // 'w'
|
||||
|
||||
/* 0120 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0xc6,0x44,0x28,0x28,0x10,0x28,0x28,0x44,0xc6,0x00,0x00}, // 'x'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xe7,0x42,0x42,0x24,0x24,0x24,0x18,0x18,0x10,0x10,0x60}, // 'y'
|
||||
{0x00,0x00,0x00,0x00,0x00,0xfe,0x82,0x84,0x08,0x10,0x20,0x42,0x82,0xfe,0x00,0x00}, // 'z'
|
||||
{0x00,0x06,0x08,0x10,0x10,0x10,0x10,0x60,0x10,0x10,0x10,0x10,0x08,0x06,0x00,0x00}, // '{'
|
||||
{0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10}, // '|'
|
||||
{0x00,0x60,0x10,0x08,0x08,0x08,0x08,0x06,0x08,0x08,0x08,0x08,0x10,0x60,0x00,0x00}, // '}'
|
||||
{0x00,0x72,0x8c,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, // '~'
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0130 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
|
||||
/* 0140 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0150 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0160 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0170 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0180 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0190 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0200 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0210 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0220 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0230 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0240 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
/* 0250~0255 */
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
|
||||
|
||||
|
||||
};
|
||||
|
||||
8
kernel/src/common/gfp.h
Normal file
8
kernel/src/common/gfp.h
Normal file
@ -0,0 +1,8 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
#include <common/compiler.h>
|
||||
/**
|
||||
* __GFP_ZERO: 获取内存的同时，将获取到的这块内存清空
|
||||
*
|
||||
*/
|
||||
#define __GFP_ZERO ((gfp_t)(1UL << 0))
|
||||
347
kernel/src/common/glib.h
Normal file
347
kernel/src/common/glib.h
Normal file
@ -0,0 +1,347 @@
|
||||
//
|
||||
// 内核全局通用库
|
||||
// Created by longjin on 2022/1/22.
|
||||
//
|
||||
|
||||
#pragma once
|
||||
|
||||
//引入对bool类型的支持
|
||||
#include <stdbool.h>
|
||||
#include <stdint.h>
|
||||
#include <common/stddef.h>
|
||||
#include <arch/arch.h>
|
||||
#include <common/compiler.h>
|
||||
#include <common/list.h>
|
||||
|
||||
#if ARCH(I386) || ARCH(X86_64)
|
||||
#include <arch/x86_64/asm/asm.h>
|
||||
#else
|
||||
#error Arch not supported.
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief 根据结构体变量内某个成员变量member的基地址，计算出该结构体变量的基地址
|
||||
* @param ptr 指向结构体变量内的成员变量member的指针
|
||||
* @param type 成员变量所在的结构体
|
||||
* @param member 成员变量名
|
||||
*
|
||||
* 方法：使用ptr减去结构体内的偏移，得到结构体变量的基地址
|
||||
*/
|
||||
#define container_of(ptr, type, member) \
|
||||
({ \
|
||||
typeof(((type *)0)->member) *p = (ptr); \
|
||||
(type *)((unsigned long)p - (unsigned long)&(((type *)0)->member)); \
|
||||
})
|
||||
|
||||
// 定义类型的缩写
|
||||
typedef unsigned char uchar;
|
||||
typedef unsigned short ushort;
|
||||
typedef unsigned int uint;
|
||||
typedef unsigned long ul;
|
||||
typedef unsigned long long int ull;
|
||||
typedef long long int ll;
|
||||
|
||||
#define ABS(x) ((x) > 0 ? (x) : -(x)) // 绝对值
|
||||
// 最大最小值
|
||||
#define max(x, y) ((x > y) ? (x) : (y))
|
||||
#define min(x, y) ((x < y) ? (x) : (y))
|
||||
|
||||
// 遮罩高32bit
|
||||
#define MASK_HIGH_32bit(x) (x & (0x00000000ffffffffUL))
|
||||
|
||||
// 四舍五入成整数
|
||||
ul round(double x)
|
||||
{
|
||||
return (ul)(x + 0.5);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 地址按照align进行对齐
|
||||
*
|
||||
* @param addr
|
||||
* @param _align
|
||||
* @return ul 对齐后的地址
|
||||
*/
|
||||
static __always_inline ul ALIGN(const ul addr, const ul _align)
|
||||
{
|
||||
return (ul)((addr + _align - 1) & (~(_align - 1)));
|
||||
}
|
||||
|
||||
|
||||
void *memset(void *dst, unsigned char C, ul size)
|
||||
{
|
||||
|
||||
int d0, d1;
|
||||
unsigned long tmp = C * 0x0101010101010101UL;
|
||||
__asm__ __volatile__("cld \n\t"
|
||||
"rep \n\t"
|
||||
"stosq \n\t"
|
||||
"testb $4, %b3 \n\t"
|
||||
"je 1f \n\t"
|
||||
"stosl \n\t"
|
||||
"1:\ttestb $2, %b3 \n\t"
|
||||
"je 2f\n\t"
|
||||
"stosw \n\t"
|
||||
"2:\ttestb $1, %b3 \n\t"
|
||||
"je 3f \n\t"
|
||||
"stosb \n\t"
|
||||
"3: \n\t"
|
||||
: "=&c"(d0), "=&D"(d1)
|
||||
: "a"(tmp), "q"(size), "0"(size / 8), "1"(dst)
|
||||
: "memory");
|
||||
return dst;
|
||||
}
|
||||
|
||||
void *memset_c(void *dst, uint8_t c, size_t count)
|
||||
{
|
||||
uint8_t *xs = (uint8_t *)dst;
|
||||
|
||||
while (count--)
|
||||
*xs++ = c;
|
||||
|
||||
return dst;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 内存拷贝函数
|
||||
*
|
||||
* @param dst 目标数组
|
||||
* @param src 源数组
|
||||
* @param Num 字节数
|
||||
* @return void*
|
||||
*/
|
||||
static void *memcpy(void *dst, const void *src, long Num)
|
||||
{
|
||||
int d0 = 0, d1 = 0, d2 = 0;
|
||||
__asm__ __volatile__("cld \n\t"
|
||||
"rep \n\t"
|
||||
"movsq \n\t"
|
||||
"testb $4,%b4 \n\t"
|
||||
"je 1f \n\t"
|
||||
"movsl \n\t"
|
||||
"1:\ttestb $2,%b4 \n\t"
|
||||
"je 2f \n\t"
|
||||
"movsw \n\t"
|
||||
"2:\ttestb $1,%b4 \n\t"
|
||||
"je 3f \n\t"
|
||||
"movsb \n\t"
|
||||
"3: \n\t"
|
||||
: "=&c"(d0), "=&D"(d1), "=&S"(d2)
|
||||
: "0"(Num / 8), "q"(Num), "1"(dst), "2"(src)
|
||||
: "memory");
|
||||
return dst;
|
||||
}
|
||||
|
||||
// 从io口读入8个bit
|
||||
unsigned char io_in8(unsigned short port)
|
||||
{
|
||||
unsigned char ret = 0;
|
||||
__asm__ __volatile__("inb %%dx, %0 \n\t"
|
||||
"mfence \n\t"
|
||||
: "=a"(ret)
|
||||
: "d"(port)
|
||||
: "memory");
|
||||
return ret;
|
||||
}
|
||||
|
||||
// 从io口读入32个bit
|
||||
unsigned int io_in32(unsigned short port)
|
||||
{
|
||||
unsigned int ret = 0;
|
||||
__asm__ __volatile__("inl %%dx, %0 \n\t"
|
||||
"mfence \n\t"
|
||||
: "=a"(ret)
|
||||
: "d"(port)
|
||||
: "memory");
|
||||
return ret;
|
||||
}
|
||||
|
||||
// 输出8个bit到输出端口
|
||||
void io_out8(unsigned short port, unsigned char value)
|
||||
{
|
||||
__asm__ __volatile__("outb %0, %%dx \n\t"
|
||||
"mfence \n\t"
|
||||
:
|
||||
: "a"(value), "d"(port)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
// 输出32个bit到输出端口
|
||||
void io_out32(unsigned short port, unsigned int value)
|
||||
{
|
||||
__asm__ __volatile__("outl %0, %%dx \n\t"
|
||||
"mfence \n\t"
|
||||
:
|
||||
: "a"(value), "d"(port)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从端口读入n个word到buffer
|
||||
*
|
||||
*/
|
||||
#define io_insw(port, buffer, nr) \
|
||||
__asm__ __volatile__("cld;rep;insw;mfence;" ::"d"(port), "D"(buffer), "c"(nr) \
|
||||
: "memory")
|
||||
|
||||
/**
|
||||
* @brief 从输出buffer中的n个word到端口
|
||||
*
|
||||
*/
|
||||
#define io_outsw(port, buffer, nr) \
|
||||
__asm__ __volatile__("cld;rep;outsw;mfence;" ::"d"(port), "S"(buffer), "c"(nr) \
|
||||
: "memory")
|
||||
|
||||
|
||||
/**
|
||||
* @brief 验证地址空间是否为用户地址空间
|
||||
*
|
||||
* @param addr_start 地址起始值
|
||||
* @param length 地址长度
|
||||
* @return true
|
||||
* @return false
|
||||
*/
|
||||
bool verify_area(uint64_t addr_start, uint64_t length)
|
||||
{
|
||||
if ((addr_start + length) <= 0x00007fffffffffffUL) // 用户程序可用的的地址空间应<= 0x00007fffffffffffUL
|
||||
return true;
|
||||
else
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从用户空间搬运数据到内核空间
|
||||
*
|
||||
* @param dst 目的地址
|
||||
* @param src 源地址
|
||||
* @param size 搬运的大小
|
||||
* @return uint64_t
|
||||
*/
|
||||
static inline uint64_t copy_from_user(void *dst, void *src, uint64_t size)
|
||||
{
|
||||
uint64_t tmp0, tmp1;
|
||||
if (!verify_area((uint64_t)src, size))
|
||||
return 0;
|
||||
|
||||
/**
|
||||
* @brief 先每次搬运8 bytes，剩余就直接一个个byte搬运
|
||||
*
|
||||
*/
|
||||
asm volatile("rep \n\t"
|
||||
"movsq \n\t"
|
||||
"movq %3, %0 \n\t"
|
||||
"rep \n\t"
|
||||
"movsb \n\t"
|
||||
: "=&c"(size), "=&D"(tmp0), "=&S"(tmp1)
|
||||
: "r"(size & 7), "0"(size >> 3), "1"(dst), "2"(src)
|
||||
: "memory");
|
||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从内核空间搬运数据到用户空间
|
||||
*
|
||||
* @param dst 目的地址
|
||||
* @param src 源地址
|
||||
* @param size 搬运的大小
|
||||
* @return uint64_t
|
||||
*/
|
||||
static inline uint64_t copy_to_user(void *dst, void *src, uint64_t size)
|
||||
{
|
||||
uint64_t tmp0, tmp1;
|
||||
if (verify_area((uint64_t)src, size))
|
||||
return 0;
|
||||
|
||||
/**
|
||||
* @brief 先每次搬运8 bytes，剩余就直接一个个byte搬运
|
||||
*
|
||||
*/
|
||||
asm volatile("rep \n\t"
|
||||
"movsq \n\t"
|
||||
"movq %3, %0 \n\t"
|
||||
"rep \n\t"
|
||||
"movsb \n\t"
|
||||
: "=&c"(size), "=&D"(tmp0), "=&S"(tmp1)
|
||||
: "r"(size & 7), "0"(size >> 3), "1"(dst), "2"(src)
|
||||
: "memory");
|
||||
return size;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 这个函数让蜂鸣器发声，目前仅用于真机调试。未来将移除，请勿依赖此函数。
|
||||
*
|
||||
* @param times 发声循环多少遍
|
||||
*/
|
||||
void __experimental_beep(uint64_t times);
|
||||
|
||||
/**
|
||||
* @brief 往指定地址写入8字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @param value 要写入的值
|
||||
*/
|
||||
static __always_inline void __write8b(uint64_t vaddr, uint64_t value)
|
||||
{
|
||||
asm volatile("movq %%rdx, 0(%%rax)" ::"a"(vaddr), "d"(value)
|
||||
: "memory");
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 往指定地址写入4字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @param value 要写入的值
|
||||
*/
|
||||
static __always_inline void __write4b(uint64_t vaddr, uint32_t value)
|
||||
{
|
||||
asm volatile("movl %%edx, 0(%%rax)" ::"a"(vaddr), "d"(value)
|
||||
: "memory");
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从指定地址读取8字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @return uint64_t 读取到的值
|
||||
*/
|
||||
static __always_inline uint64_t __read8b(uint64_t vaddr)
|
||||
{
|
||||
uint64_t retval;
|
||||
asm volatile("movq 0(%%rax), %0"
|
||||
: "=r"(retval)
|
||||
: "a"(vaddr)
|
||||
: "memory");
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从指定地址读取4字节
|
||||
* 防止由于编译器优化导致不支持的内存访问类型（尤其是在mmio的时候）
|
||||
*
|
||||
* @param vaddr 虚拟地址
|
||||
* @return uint64_t 读取到的值
|
||||
*/
|
||||
static __always_inline uint32_t __read4b(uint64_t vaddr)
|
||||
{
|
||||
uint32_t retval;
|
||||
asm volatile("movl 0(%%rax), %0"
|
||||
: "=d"(retval)
|
||||
: "a"(vaddr)
|
||||
: "memory");
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 将数据从src搬运到dst，并能正确处理地址重叠的问题
|
||||
*
|
||||
* @param dst 目标地址指针
|
||||
* @param src 源地址指针
|
||||
* @param size 大小
|
||||
* @return void* 指向目标地址的指针
|
||||
*/
|
||||
void *memmove(void *dst, const void *src, uint64_t size);
|
||||
166
kernel/src/common/hid.h
Normal file
166
kernel/src/common/hid.h
Normal file
@ -0,0 +1,166 @@
|
||||
#pragma once
|
||||
#include <common/stddef.h>
|
||||
|
||||
#define __HID_USAGE_TABLE_SIZE 64 // usage stack的大小
|
||||
#define HID_MAX_REPORT 300 // 最大允许的hid report数目（包括feature、input、output）
|
||||
#define HID_MAX_PATH_SIZE 16 // maximum depth for path
|
||||
|
||||
// 这部分请参考hid_1_11.pdf Section 6.2.2.4
|
||||
|
||||
#define HID_ITEM_COLLECTION 0xA0
|
||||
#define HID_ITEM_END_COLLECTION 0xC0
|
||||
#define HID_ITEM_FEATURE 0xB0
|
||||
#define HID_ITEM_INPUT 0x80
|
||||
#define HID_ITEM_OUTPUT 0x90
|
||||
|
||||
/**
|
||||
* @brief 枚举hid的usage page列表。
|
||||
* 原始数据请见<HID Usage Tables FOR Universal Serial Bus (USB)>。
|
||||
* 该文件可从usb.org下载
|
||||
*/
|
||||
enum HID_USAGE_PAGE_TYPES
|
||||
{
|
||||
HID_USAGE_PAGE_GEN_DESKTOP = 0x1,
|
||||
HID_USAGE_PAGE_SIMU_CTRL, // simulation controls
|
||||
HID_USAGE_PAGE_VR_CTRL, // vr controls page
|
||||
HID_USAGE_PAGE_SPORT_CTRL, // sport controls
|
||||
HID_USAGE_PAGE_GAME_CTRL, // game controls
|
||||
HID_USAGE_PAGE_GEN_DEVICE_CTRL, // general device controls
|
||||
HID_USAGE_PAGE_KBD_KPD, // keyboard/ keypad page
|
||||
HID_USAGE_PAGE_LED, // LED
|
||||
HID_USAGE_PAGE_BUTTON, // button page
|
||||
HID_USAGE_PAGE_ORDINAL, // ordinal page
|
||||
HID_USAGE_PAGE_TEL_DEVICE, // telephony device
|
||||
HID_USAGE_PAGE_CONSUMER, // consumer page
|
||||
HID_USAGE_PAGE_DIGITIZER, // digitizers page
|
||||
HID_USAGE_PAGE_HAPTICS, // haptics page
|
||||
HID_USAGE_PAGE_PHY_INPUT_DEVICE, // physical input device page
|
||||
HID_USAGE_PAGE_UNICODE = 0x10, // unicode page
|
||||
HID_USAGE_PAGE_EYE_HEAD_TRACKER = 0x12, // eye and head trackers page
|
||||
HID_USAGE_PAGE_AUX_DISPLAY = 0x14, // auxiliary display page
|
||||
HID_USAGE_PAGE_SENSORS = 0x20, // sensors page
|
||||
HID_USAGE_PAGE_MEDICAL = 0x40, // medical instruments
|
||||
HID_USAGE_PAGE_BRAILLE_DISPLAY, // barille display
|
||||
HID_USAGE_PAGE_LIGHTNING_ILLU = 0x59, // lighting and illumination page
|
||||
HID_USAGE_PAGE_MONITOR = 0x80, // monitor page
|
||||
HID_USAGE_PAGE_MONITOR_ENUMERATED, // monitor enumerated page
|
||||
HID_USAGE_PAGE_VESA_VIRT_CTRL, // VESA virtual controls page
|
||||
HID_USAGE_PAGE_POWER = 0x84, // power page
|
||||
HID_USAGE_PAGE_BATTERY_SYSTEM, // battery system page
|
||||
HID_USAGE_PAGE_BARCODE_SCANNER = 0x8c, // barcode scanner page
|
||||
HID_USAGE_PAGE_SCALES, // scales page
|
||||
HID_USAGE_PAGE_MAGNET_STRIPE_READER, // magnetic stript reader page
|
||||
HID_USAGE_PAGE_CAMERA_CONTROL = 0x90, // camera control page
|
||||
HID_USAGE_PAGE_ARCADE, // arcade page
|
||||
HID_USAGE_PAGE_GAMING_DEVICE, // gaming device page
|
||||
HID_USAGE_PAGE_FIDO_ALLIANCE = 0xf1d0, // FIDO alliance page
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief usage type for HID_USAGE_PAGE_GEN_DESKTOP page
|
||||
*
|
||||
*/
|
||||
enum USAGE_TYPE_GENDESK
|
||||
{
|
||||
HID_USAGE_GENDESK_UNDEF = 0, // undefined
|
||||
HID_USAGE_GENDESK_POINTER,
|
||||
HID_USAGE_GENDESK_MOUSE,
|
||||
HID_USAGE_GENDESK_KEYBOARD = 0x6,
|
||||
HID_USAGE_GENDESK_POINTER_X = 0x30,
|
||||
HID_USAGE_GENDESK_POINTER_Y,
|
||||
HID_USAGE_GENDESK_WHEEL = 0x38,
|
||||
HID_USAGE_GENDESK_NOTHING = 0xff,
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 描述hid path中的一个节点
|
||||
*
|
||||
*/
|
||||
struct hid_node_t
|
||||
{
|
||||
int u_page;
|
||||
int usage;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 描述一条hid path
|
||||
*
|
||||
*/
|
||||
struct hid_path_t
|
||||
{
|
||||
int size; // 路径中的节点数目
|
||||
struct hid_node_t node[HID_MAX_PATH_SIZE];
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief Describe a HID Data with its location in report
|
||||
*
|
||||
*/
|
||||
struct hid_data_t
|
||||
{
|
||||
int value; // hid对象的值
|
||||
struct hid_path_t path; // hid path
|
||||
|
||||
int report_count; // count of reports for this usage type
|
||||
int offset; // offset of data in report
|
||||
int size; // size of data in bits
|
||||
|
||||
uint8_t report_id; // report id(from incoming report)
|
||||
uint8_t type; // 数据类型：FEATURE / INPUT / OUTPUT
|
||||
uint8_t attribute; // report field attribute. (2 = (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position))
|
||||
// (6 = (Data,Var,Rel,No Wrap,Linear,Preferred State,No Null Position))
|
||||
int8_t unit_exp; // unit exponent;
|
||||
|
||||
uint32_t unit; // HID unit
|
||||
|
||||
int logical_min; // Logical min
|
||||
int logical_max; // Logical max
|
||||
int phys_min; // Physical min
|
||||
int phys_max; // Physical max
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief hid解析器
|
||||
*
|
||||
*/
|
||||
struct hid_parser
|
||||
{
|
||||
const uint8_t *report_desc; // 指向report descriptor的指针
|
||||
int report_desc_size; // report descriptor的大小（字节）
|
||||
int pos; // report_desc中，当前正在处理的位置
|
||||
uint8_t item; // 暂存当前的item
|
||||
uint32_t value; // 暂存当前的值
|
||||
|
||||
struct hid_data_t data; // 存储当前的环境
|
||||
|
||||
int offset_table[HID_MAX_REPORT][3]; // 存储 hid report的ID、type、offset
|
||||
int report_count; // hid report的数量
|
||||
int count; // local items的计数
|
||||
|
||||
uint32_t u_page;
|
||||
struct hid_node_t usage_table[__HID_USAGE_TABLE_SIZE]; // Usage stack
|
||||
int usage_size; // usage的数量
|
||||
int usage_min;
|
||||
int usage_max;
|
||||
|
||||
int cnt_objects; // report descriptor中的对象数目
|
||||
|
||||
int cnt_report; // report desc中的report数目
|
||||
};
|
||||
|
||||
struct hid_usage_types_string
|
||||
{
|
||||
int value;
|
||||
const char *string;
|
||||
};
|
||||
|
||||
struct hid_usage_pages_string
|
||||
{
|
||||
int value;
|
||||
struct hid_usage_types_string *types;
|
||||
const char *string;
|
||||
};
|
||||
|
||||
int hid_parse_report(const void *report_data, const int len);
|
||||
|
||||
bool hid_parse_find_object(const void *hid_report, const int report_size, struct hid_data_t *data);
|
||||
173
kernel/src/common/idr.h
Normal file
173
kernel/src/common/idr.h
Normal file
@ -0,0 +1,173 @@
|
||||
#pragma GCC push_options
|
||||
#pragma GCC optimize("O1")
|
||||
|
||||
#include <common/errno.h>
|
||||
#include <common/spinlock.h>
|
||||
|
||||
#if ARCH(I386) || ARCH(X86_64)
|
||||
#include <arch/x86_64/math/bitcount.h>
|
||||
#else
|
||||
#error Arch not supported.
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* idr: 基于radix-tree的ID-pointer的数据结构
|
||||
* 主要功能:
|
||||
* 1. 获取一个ID, 并且将该ID与一个指针绑定 - 需要外部加锁
|
||||
* 2. 删除一个已分配的ID - 需要外部加锁
|
||||
* 3. 根据ID查找对应的指针 (读操作,看情况加锁)
|
||||
* 4. 根据ID使用新的ptr替换旧的ptr - 需要外部加锁
|
||||
*
|
||||
* 附加功能:
|
||||
* 1. 给定starting_id, 查询下一个已分配的next_id (即:next_id>starting_id)
|
||||
* 2. 销毁整个idr
|
||||
*
|
||||
*
|
||||
* .... 待实现
|
||||
*/
|
||||
|
||||
// 默认64位机器
|
||||
#define IDR_BITS 6
|
||||
#define IDR_FULL 0xfffffffffffffffful
|
||||
|
||||
// size = 64
|
||||
#define IDR_SIZE (1 << IDR_BITS)
|
||||
#define IDR_MASK ((1 << IDR_BITS) - 1)
|
||||
|
||||
// 能管理的ID范围[0:1<<31]
|
||||
#define MAX_ID_SHIFT (sizeof(int) * 8 - 1)
|
||||
#define MAX_ID_BIT (1U << MAX_ID_SHIFT)
|
||||
#define MAX_ID_MASK (MAX_ID_BIT - 1)
|
||||
|
||||
// IDR可能最大的层次 以及 IDR预分配空间的最大限制
|
||||
#define MAX_LEVEL ((MAX_ID_SHIFT + IDR_BITS - 1) / IDR_BITS)
|
||||
#define IDR_FREE_MAX (MAX_LEVEL << 1)
|
||||
|
||||
// 给定layer, 计算完全64叉树的大小
|
||||
#define TREE_SIZE(layer) ((layer >= 0) ? (1ull << ((layer + 1) * IDR_BITS)) : 1)
|
||||
|
||||
// 计算最后(最低位)一个1的位置 (注意使用64位的版本)
|
||||
#define __lowbit_id(x) ((x) ? (__ctzll(x)) : -1)
|
||||
|
||||
// 计算最前(最高位)一个1的位置 (注意使用64位的版本)
|
||||
#define __mostbit_id(x) ((x) ? (63 - __clzll(x)) : -1)
|
||||
|
||||
// radix-tree 节点定义
|
||||
struct idr_layer
|
||||
{
|
||||
struct idr_layer *ary[IDR_SIZE]; // IDR_SIZE叉树
|
||||
unsigned long bitmap; // 每一位表示这个子树是否被使用
|
||||
unsigned long full; // 64个儿子子树, 每一位代表一个子树是否满了
|
||||
int layer; // 层数(从底向上)
|
||||
};
|
||||
|
||||
// idr: 将id与pointer绑定的数据结构
|
||||
struct idr
|
||||
{
|
||||
struct idr_layer *top;
|
||||
struct idr_layer *free_list;
|
||||
int id_free_cnt;
|
||||
spinlock_t lock;
|
||||
}__attribute__((aligned(8)));
|
||||
|
||||
#define DECLARE_IDR(name) \
|
||||
struct idr name = {0}; \
|
||||
idr_init(&(name));
|
||||
|
||||
#define DECLARE_IDR_LAYER(name) \
|
||||
struct idr_layer name = {0}; \
|
||||
memset(name, 0, sizeof(struct idr_layer));
|
||||
|
||||
/**
|
||||
* 对外函数声明
|
||||
**/
|
||||
int idr_preload(struct idr *idp, gfp_t gfp_mask);
|
||||
int idr_alloc(struct idr *idp, void *ptr, int *id);
|
||||
void *idr_remove(struct idr *idp, int id);
|
||||
void idr_remove_all(struct idr *idp);
|
||||
void idr_destroy(struct idr *idp);
|
||||
void *idr_find(struct idr *idp, int id);
|
||||
void *idr_find_next(struct idr *idp, int start_id);
|
||||
void *idr_find_next_getid(struct idr *idp, int64_t start_id, int *nextid);
|
||||
int idr_replace_get_old(struct idr *idp, void *ptr, int id, void **oldptr);
|
||||
int idr_replace(struct idr *idp, void *ptr, int id);
|
||||
void idr_init(struct idr *idp);
|
||||
bool idr_empty(struct idr *idp);
|
||||
bool idr_count(struct idr *idp, int id);
|
||||
|
||||
/**
|
||||
* 对外宏：遍历idr两种方式：
|
||||
* 1. 从第一个元素开始遍历
|
||||
* 2. 从某一个id开始遍历
|
||||
*/
|
||||
|
||||
/**
|
||||
* @brief 第一种遍历方式: 从第一个元素开始遍历
|
||||
* @param idp idr指针
|
||||
* @param id 遍历的id，你不需要初始化这个id，因为它每一次都是从最小已分配的id开始遍历
|
||||
* @param ptr 数据指针(entry)，你不需要初始化这个指针
|
||||
*/
|
||||
#define for_each_idr_entry(idp, id, ptr) \
|
||||
for (id = -1, ptr = idr_find_next_getid(idp, id, &id); ptr != NULL || !idr_count(idp, id); ptr = idr_find_next_getid(idp, id, &id))
|
||||
|
||||
/**
|
||||
* @brief 第二种遍历方式: 从某一个id开始遍历
|
||||
* @param idp idr指针
|
||||
* @param id 遍历的id，你需要初始化这个id(请你设置为你要从哪一个id开始遍历，遍历过程将会包括这个id)
|
||||
* @param ptr 数据指针(entry)，你不需要初始化这个指针
|
||||
*/
|
||||
#define for_each_idr_entry_continue(idp, id, ptr) \
|
||||
for (ptr = idr_find_next_getid(idp, id - 1, &id); ptr != NULL || !idr_count(idp, id); ptr = idr_find_next_getid(idp, id, &id))
|
||||
|
||||
/**
|
||||
* ida: 基于IDR实现的ID分配器
|
||||
* 主要功能:
|
||||
* 1. 获取一个未分配的ID
|
||||
* 2. 询问一个ID是否被分配
|
||||
* 3. 删除一个已分配ID
|
||||
*
|
||||
* 附加功能:
|
||||
* 1. 暂定
|
||||
*/
|
||||
|
||||
// 一个块的大小 - 即 sizeof(struct ida_bitmap)
|
||||
#define IDA_CHUNK_SIZE 128
|
||||
// ida_bitmap的长度
|
||||
#define IDA_BITMAP_LONGS (IDA_CHUNK_SIZE / sizeof(long) - 1)
|
||||
// 对应linux的IDA_BITMAP_BITS = 960 = 15 * 64
|
||||
#define IDA_FULL (IDA_BITMAP_LONGS * sizeof(long) * 8)
|
||||
#define IDA_BITMAP_BITS IDA_FULL
|
||||
#define IDA_BMP_SIZE (8 * sizeof(long))
|
||||
|
||||
// 自定义bitmap
|
||||
struct ida_bitmap
|
||||
{
|
||||
unsigned long count; // bitmap中已经分配的id数量
|
||||
unsigned long bitmap[IDA_BITMAP_LONGS]; // bitmap本身, 每一个bit代表一个ID
|
||||
};
|
||||
|
||||
// id-allocater 管理+分配ID的数据结构
|
||||
struct ida
|
||||
{
|
||||
struct idr idr;
|
||||
struct ida_bitmap *free_list; // 预分配的数据块
|
||||
};
|
||||
|
||||
#define DECLARE_IDA(name) \
|
||||
struct ida name = {0}; \
|
||||
idr_init(&name.idr); \
|
||||
name.free_list = (NULL);
|
||||
|
||||
/**
|
||||
* 对外函数声明
|
||||
*/
|
||||
void ida_init(struct ida *ida_p);
|
||||
bool ida_empty(struct ida *ida_p);
|
||||
int ida_preload(struct ida *ida_p, gfp_t gfp_mask);
|
||||
int ida_alloc(struct ida *ida_p, int *p_id);
|
||||
bool ida_count(struct ida *ida_p, int id);
|
||||
void ida_remove(struct ida *ida_p, int id);
|
||||
void ida_destroy(struct ida *ida_p);
|
||||
|
||||
#pragma GCC pop_options
|
||||
153
kernel/src/common/kfifo.h
Normal file
153
kernel/src/common/kfifo.h
Normal file
@ -0,0 +1,153 @@
|
||||
#pragma once
|
||||
|
||||
#include <stdint.h>
|
||||
#include <common/spinlock.h>
|
||||
|
||||
struct kfifo_t
|
||||
{
|
||||
uint32_t total_size; // 缓冲区总空间
|
||||
uint32_t size; // 元素所占的字节数
|
||||
uint32_t in_offset; // 入口偏移
|
||||
uint32_t out_offset; // 出口偏移
|
||||
void *buffer; // 缓冲区
|
||||
} __attribute__((aligned(sizeof(long))));
|
||||
|
||||
/**
|
||||
* @brief 忽略kfifo队列中的所有内容，并把输入和输出偏移量都归零
|
||||
*
|
||||
*/
|
||||
#define kfifo_reset(fifo) (void)({ \
|
||||
(fifo)->size = 0; \
|
||||
(fifo)->in_offset = 0; \
|
||||
(fifo)->out_offset = 0; \
|
||||
})
|
||||
|
||||
/**
|
||||
* @brief 忽略kfifo队列中的所有内容，并将输入偏移量赋值给输出偏移量
|
||||
*
|
||||
*/
|
||||
#define kfifo_reset_out(fifo) (void)({ \
|
||||
(fifo)->size = 0; \
|
||||
(fifo)->out_offset = (fifo)->in_offset; \
|
||||
})
|
||||
|
||||
/**
|
||||
* @brief 获取kfifo缓冲区的最大大小
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @return uint32_t 缓冲区最大大小
|
||||
*/
|
||||
#define kfifo_total_size(fifo) ((fifo)->total_size)
|
||||
/**
|
||||
* @brief 获取kfifo缓冲区当前已使用的大小
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @return uint32_t 缓冲区当前已使用的大小
|
||||
*/
|
||||
#define kfifo_size(fifo) ((fifo)->size)
|
||||
|
||||
/**
|
||||
* @brief 判断kfifo缓冲区当前是否为空
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @return uint32_t 0->非空， 1->空
|
||||
*/
|
||||
#define kfifo_empty(fifo) (((fifo)->size == 0) ? 1 : 0)
|
||||
|
||||
/**
|
||||
* @brief 判断kfifo缓冲区当前是否为满
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @return uint32_t 0->不满， 1->满
|
||||
*/
|
||||
#define kfifo_full(fifo) (((fifo)->size == (fifo)->total_size) ? 1 : 0)
|
||||
|
||||
/**
|
||||
* @brief 通过动态方式初始化kfifo缓冲队列
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param size 缓冲区大小
|
||||
* @param reserved 暂时保留，请置为0
|
||||
* @return int 错误码：成功->0
|
||||
*/
|
||||
int kfifo_alloc(struct kfifo_t *fifo, uint32_t size, uint64_t reserved);
|
||||
|
||||
/**
|
||||
* @brief 释放通过kfifo_alloc创建的fifo缓冲区
|
||||
*
|
||||
* @param fifo fifo队列结构体
|
||||
*/
|
||||
void kfifo_free_alloc(struct kfifo_t *fifo);
|
||||
|
||||
/**
|
||||
* @brief 使用指定的缓冲区来初始化kfifo缓冲队列
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param buffer 缓冲区
|
||||
* @param size 缓冲区大小
|
||||
*/
|
||||
void kfifo_init(struct kfifo_t *fifo, void *buffer, uint32_t size);
|
||||
|
||||
/**
|
||||
* @brief 向kfifo缓冲区推入指定大小的数据
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param from 来源数据地址
|
||||
* @param size 数据大小（字节数）
|
||||
* @return uint32_t 推入的数据大小
|
||||
*/
|
||||
uint32_t kfifo_in(struct kfifo_t *fifo, const void *from, uint32_t size);
|
||||
|
||||
/**
|
||||
* @brief 从kfifo缓冲区取出数据，并从队列中删除数据
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param to 拷贝目标地址
|
||||
* @param size 数据大小（字节数）
|
||||
* @return uint32_t 取出的数据大小
|
||||
*/
|
||||
uint32_t kfifo_out(struct kfifo_t *fifo, void *to, uint32_t size);
|
||||
|
||||
/**
|
||||
* @brief 从kfifo缓冲区取出数据，但是不从队列中删除数据
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param to 拷贝目标地址
|
||||
* @param size 数据大小（字节数）
|
||||
* @return uint32_t 取出的数据大小
|
||||
*/
|
||||
uint32_t kfifo_out_peek(struct kfifo_t *fifo, void *to, uint32_t size);
|
||||
|
||||
/**
|
||||
* @brief 向kfifo缓冲区推入指定大小的数据并在过程加锁
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param from 来源数据地址
|
||||
* @param size 数据大小（字节数）
|
||||
* @param lock 自旋锁
|
||||
* @return uint32_t 推入的数据大小
|
||||
*/
|
||||
uint32_t __always_inline kfifo_in_locked(struct kfifo_t *fifo, const void *from, uint32_t size, spinlock_t *lock)
|
||||
{
|
||||
spin_lock(lock);
|
||||
uint32_t retval = kfifo_in(fifo, from, size);
|
||||
spin_unlock(lock);
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从kfifo缓冲区取出数据，并从队列中删除数据，并在过程加锁
|
||||
*
|
||||
* @param fifo 队列结构体
|
||||
* @param to 拷贝目标地址
|
||||
* @param size 数据大小（字节数）
|
||||
* @param lock 自旋锁
|
||||
* @return uint32_t 取出的数据大小
|
||||
*/
|
||||
uint32_t __always_inline kfifo_out_locked(struct kfifo_t *fifo, void *to, uint32_t size, spinlock_t *lock)
|
||||
{
|
||||
spin_lock(lock);
|
||||
uint32_t retval = kfifo_out(fifo, to, size);
|
||||
spin_unlock(lock);
|
||||
return retval;
|
||||
}
|
||||
78
kernel/src/common/kprint.h
Normal file
78
kernel/src/common/kprint.h
Normal file
@ -0,0 +1,78 @@
|
||||
/**
|
||||
* @file kprint.h
|
||||
* @author longjin
|
||||
* @brief 内核日志打印程序
|
||||
* @date 2022-01-28
|
||||
*
|
||||
* @copyright Copyright (c) 2022 longjin
|
||||
*
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
#include "printk.h"
|
||||
|
||||
#define ksuccess(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ "); \
|
||||
printk_color(GREEN, BLACK, "SUCCESS"); \
|
||||
printk(" ] "); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
|
||||
#define kinfo(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ INFO ] "); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
|
||||
#define kdebug(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ DEBUG ] (%s:%d)\t", __FILE__, __LINE__); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
|
||||
#define kwarn(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ "); \
|
||||
printk_color(YELLOW, BLACK, "WARN"); \
|
||||
printk(" ] "); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
|
||||
#define kerror(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ "); \
|
||||
printk_color(RED, BLACK, "ERROR"); \
|
||||
printk(" ] "); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
|
||||
#define kterminated(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ "); \
|
||||
printk_color(RED, BLACK, "TERMINATED"); \
|
||||
printk(" ] "); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
|
||||
#define kBUG(...) \
|
||||
do \
|
||||
{ \
|
||||
printk("[ "); \
|
||||
printk_color(RED, BLACK, "BUG"); \
|
||||
printk(" ] (%s:%d)\t", __FILE__, __LINE__); \
|
||||
printk(__VA_ARGS__); \
|
||||
printk("\n"); \
|
||||
} while (0)
|
||||
108
kernel/src/common/kthread.h
Normal file
108
kernel/src/common/kthread.h
Normal file
@ -0,0 +1,108 @@
|
||||
#pragma once
|
||||
|
||||
#include <common/numa.h>
|
||||
#include <process/proc-types.h>
|
||||
#include <common/err.h>
|
||||
#include <process/process.h>
|
||||
|
||||
/**
|
||||
* @brief kthread信息
|
||||
* 该结构体将会绑定到pcb的worker_private中
|
||||
*/
|
||||
struct kthread_info_t
|
||||
{
|
||||
uint64_t flags;
|
||||
uint32_t cpu;
|
||||
int result;
|
||||
int (*thread_fn)(void *);
|
||||
void *data;
|
||||
// todo: 将这里改为completion机制
|
||||
bool exited; // 是否已退出
|
||||
char *full_name; // 内核线程的名称
|
||||
};
|
||||
|
||||
struct process_control_block *kthread_create_on_node(int (*thread_fn)(void *data),
|
||||
void *data,
|
||||
int node,
|
||||
const char name_fmt[], ...);
|
||||
/**
|
||||
* @brief 在当前结点上创建一个内核线程
|
||||
*
|
||||
* @param thread_fn 该内核线程要执行的函数
|
||||
* @param data 传递给 thread_fn 的参数数据
|
||||
* @param name_fmt printf-style format string for the thread name
|
||||
* @param arg name_fmt的参数
|
||||
*
|
||||
* 请注意，该宏会创建一个内核线程，并将其设置为停止状态
|
||||
*/
|
||||
#define kthread_create(thread_fn, data, name_fmt, arg...) \
|
||||
kthread_create_on_node(thread_fn, data, NUMA_NO_NODE, name_fmt, ##arg)
|
||||
|
||||
/**
|
||||
* @brief 创建内核线程，并将其唤醒
|
||||
*
|
||||
* @param thread_fn 该内核线程要执行的函数
|
||||
* @param data 传递给 thread_fn 的参数数据
|
||||
* @param name_fmt printf-style format string for the thread name
|
||||
* @param arg name_fmt的参数
|
||||
*/
|
||||
#define kthread_run(thread_fn, data, name_fmt, ...) \
|
||||
({ \
|
||||
struct process_control_block *__kt = kthread_create(thread_fn, data, name_fmt, ##__VA_ARGS__); \
|
||||
if (!IS_ERR(__kt)) \
|
||||
process_wakeup(__kt); \
|
||||
__kt; \
|
||||
})
|
||||
|
||||
/**
|
||||
* @brief 向kthread发送停止信号，请求其结束
|
||||
*
|
||||
* @param pcb 内核线程的pcb
|
||||
* @return int 错误码
|
||||
*/
|
||||
int kthread_stop(struct process_control_block * pcb);
|
||||
|
||||
/**
|
||||
* @brief 内核线程调用该函数，检查自身的标志位，判断自己是否应该执行完任务后退出
|
||||
*
|
||||
* @return true 内核线程应该退出
|
||||
* @return false 无需退出
|
||||
*/
|
||||
bool kthread_should_stop(void);
|
||||
|
||||
/**
|
||||
* @brief 让当前内核线程退出，并返回result参数给kthread_stop()函数
|
||||
*
|
||||
* @param result 返回值
|
||||
*/
|
||||
void kthread_exit(long result);
|
||||
|
||||
/**
|
||||
* @brief 初始化kthread机制(只应被process_init调用)
|
||||
*
|
||||
* @return int 错误码
|
||||
*/
|
||||
int kthread_mechanism_init();
|
||||
|
||||
/**
|
||||
* @brief 设置pcb中的worker_private字段（只应被设置一次）
|
||||
*
|
||||
* @param pcb pcb
|
||||
* @return bool 成功或失败
|
||||
*/
|
||||
bool kthread_set_worker_private(struct process_control_block *pcb);
|
||||
|
||||
/**
|
||||
* @brief 获取pcb中的kthread结构体
|
||||
*
|
||||
* @param pcb pcb
|
||||
* @return struct kthread* kthread信息结构体
|
||||
*/
|
||||
struct kthread_info_t *to_kthread(struct process_control_block *pcb);
|
||||
|
||||
/**
|
||||
* @brief 释放pcb指向的worker private
|
||||
*
|
||||
* @param pcb 要释放的pcb
|
||||
*/
|
||||
void free_kthread_struct(struct process_control_block *pcb);
|
||||
357
kernel/src/common/list.h
Normal file
357
kernel/src/common/list.h
Normal file
@ -0,0 +1,357 @@
|
||||
#pragma once
|
||||
#include <common/stddef.h>
|
||||
|
||||
#if ARCH(I386) || ARCH(X86_64)
|
||||
#include <arch/x86_64/asm/asm.h>
|
||||
#else
|
||||
#error Arch not supported.
|
||||
#endif
|
||||
|
||||
//链表数据结构
|
||||
struct List
|
||||
{
|
||||
struct List *prev, *next;
|
||||
};
|
||||
|
||||
//初始化循环链表
|
||||
static inline void list_init(struct List *list)
|
||||
{
|
||||
list->next = list;
|
||||
io_mfence();
|
||||
list->prev = list;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief
|
||||
|
||||
* @param entry 给定的节点
|
||||
* @param node 待插入的节点
|
||||
**/
|
||||
static inline void list_add(struct List *entry, struct List *node)
|
||||
{
|
||||
|
||||
node->next = entry->next;
|
||||
barrier();
|
||||
node->prev = entry;
|
||||
barrier();
|
||||
node->next->prev = node;
|
||||
barrier();
|
||||
entry->next = node;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 将node添加到给定的list的结尾(也就是当前节点的前面)
|
||||
* @param entry 列表的入口
|
||||
* @param node 待添加的节点
|
||||
*/
|
||||
static inline void list_append(struct List *entry, struct List *node)
|
||||
{
|
||||
|
||||
struct List *tail = entry->prev;
|
||||
list_add(tail, node);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 从列表中删除节点
|
||||
* @param entry 待删除的节点
|
||||
*/
|
||||
static inline void list_del(struct List *entry)
|
||||
{
|
||||
|
||||
entry->next->prev = entry->prev;
|
||||
entry->prev->next = entry->next;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 删除链表的结点，并将这个结点重新初始化
|
||||
*
|
||||
*/
|
||||
#define list_del_init(entry) \
|
||||
list_del(entry); \
|
||||
list_init(entry);
|
||||
|
||||
/**
|
||||
* @brief 将新的链表结点替换掉旧的链表结点，并使得旧的结点的前后指针均为NULL
|
||||
*
|
||||
* @param old 要被替换的结点
|
||||
* @param new 新的要换上去的结点
|
||||
*/
|
||||
static inline void list_replace(struct List *old, struct List *new)
|
||||
{
|
||||
if (old->prev != NULL)
|
||||
old->prev->next = new;
|
||||
new->prev = old->prev;
|
||||
if (old->next != NULL)
|
||||
old->next->prev = new;
|
||||
new->next = old->next;
|
||||
|
||||
old->prev = NULL;
|
||||
old->next = NULL;
|
||||
}
|
||||
|
||||
static inline bool list_empty(struct List *entry)
|
||||
{
|
||||
/**
|
||||
* @brief 判断循环链表是否为空
|
||||
* @param entry 入口
|
||||
*/
|
||||
|
||||
if (entry == entry->next && entry->prev == entry)
|
||||
return true;
|
||||
else
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取链表的上一个元素
|
||||
*
|
||||
* @param entry
|
||||
* @return 链表的上一个元素
|
||||
*/
|
||||
static inline struct List *list_prev(struct List *entry)
|
||||
{
|
||||
if (entry->prev != NULL)
|
||||
return entry->prev;
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取链表的下一个元素
|
||||
*
|
||||
* @param entry
|
||||
* @return 链表的下一个元素
|
||||
*/
|
||||
static inline struct List *list_next(struct List *entry)
|
||||
{
|
||||
if (entry->next != NULL)
|
||||
return entry->next;
|
||||
else
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 获取当前entry的链表结构体
|
||||
*
|
||||
* @param ptr 指向List结构体的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_entry(ptr, type, member) container_of(ptr, type, member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的第一个元素
|
||||
* 请注意，该宏要求链表非空，否则会出错
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_first_entry(ptr, type, member) list_entry((ptr)->next, type, member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的第一个元素
|
||||
* 若链表为空，则返回NULL
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_first_entry_or_null(ptr, type, member) (!list_empty(ptr) ? list_entry((ptr)->next, type, member) : NULL)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的最后一个元素
|
||||
* 请注意，该宏要求链表非空，否则会出错
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_last_entry(ptr, type, member) list_entry((ptr)->prev, type, member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的最后一个元素
|
||||
* 若链表为空，则返回NULL
|
||||
*
|
||||
* @param ptr 指向链表头的指针
|
||||
* @param type 包裹着List结构体的外层结构体的类型
|
||||
* @param member List结构体在上述的“包裹list结构体的结构体”中的变量名
|
||||
*/
|
||||
#define list_last_entry_or_full(ptr, type, member) (!list_empty(ptr) ? list_entry((ptr)->prev, type, member) : NULL)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的下一个元素
|
||||
*
|
||||
* @param pos 指向当前的外层结构体的指针
|
||||
* @param member 链表结构体在外层结构体内的变量名
|
||||
*/
|
||||
#define list_next_entry(pos, member) list_entry((pos)->member.next, typeof(*(pos)), member)
|
||||
|
||||
/**
|
||||
* @brief 获取链表中的上一个元素
|
||||
*
|
||||
* @param pos 指向当前的外层结构体的指针
|
||||
* @param member 链表结构体在外层结构体内的变量名
|
||||
*/
|
||||
#define list_prev_entry(pos, member) list_entry((pos)->member.prev, typeof(*(pos)), member)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从前往后）
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each(ptr, head) \
|
||||
for ((ptr) = (head)->next; (ptr) != (head); (ptr) = (ptr)->next)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从后往前）
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each_prev(ptr, head) \
|
||||
for ((ptr) = (head)->prev; (ptr) != (head); (ptr) = (ptr)->prev)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从前往后）（支持删除当前链表结点）
|
||||
* 该宏通过暂存中间变量，防止在迭代链表的过程中，由于删除了当前ptr所指向的链表结点从而造成错误
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param n 用于存储临时值的List类型的指针
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each_safe(ptr, n, head) \
|
||||
for ((ptr) = (head)->next, (n) = (ptr)->next; (ptr) != (head); (ptr) = n, n = (ptr)->next)
|
||||
|
||||
/**
|
||||
* @brief 遍历整个链表（从前往后）（支持删除当前链表结点）
|
||||
* 该宏通过暂存中间变量，防止在迭代链表的过程中，由于删除了当前ptr所指向的链表结点从而造成错误
|
||||
*
|
||||
* @param ptr the &struct list_head to use as a loop cursor.
|
||||
* @param n 用于存储临时值的List类型的指针
|
||||
* @param head the head for your list.
|
||||
*/
|
||||
#define list_for_each_prev_safe(ptr, n, head) \
|
||||
for ((ptr) = (head)->prev, (n) = (ptr)->prev; (ptr) != (head); (ptr) = n, n = (ptr)->prev)
|
||||
|
||||
/**
|
||||
* @brief 从头开始迭代给定类型的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针
|
||||
* @param head 链表头
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry(pos, head, member) \
|
||||
for (pos = list_first_entry(head, typeof(*pos), member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从头开始迭代给定类型的链表（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针
|
||||
* @param n 用于存储临时值的，和pos相同类型的指针
|
||||
* @param head 链表头
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe(pos, n, head, member) \
|
||||
for (pos = list_first_entry(head, typeof(*pos), member), n = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
|
||||
/**
|
||||
* @brief 逆序迭代给定类型的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针
|
||||
* @param head 链表头
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_reverse(pos, head, member) \
|
||||
for (pos = list_last_entry(head, typeof(*pos), member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_prev_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 为list_for_each_entry_continue()准备一个'pos'结构体
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的，用作迭代起点的指针
|
||||
* @param head 指向要开始迭代的struct List结构体的指针
|
||||
* @param member struct List在pos的结构体中的成员变量名
|
||||
*/
|
||||
#define list_prepare_entry(pos, head, member) \
|
||||
((pos) ? pos : list_entry(head, typeof(*pos), member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[下一个元素开始],继续迭代给定的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_continue(pos, head, member) \
|
||||
for (pos = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[下一个元素开始],继续迭代给定的链表。（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param n 用于存储临时值的，和pos相同类型的指针
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe_continue(pos, n, head, member) \
|
||||
for (pos = list_next_entry(pos, member), n = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[上一个元素开始],【逆序】迭代给定的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_continue_reverse(pos, head, member) \
|
||||
for (pos = list_prev_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = list_prev_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置的[上一个元素开始],【逆序】迭代给定的链表。（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe_continue_reverse(pos, n, head, member) \
|
||||
for (pos = list_prev_entry(pos, member), n = list_prev_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_prev_entry(n, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置开始,继续迭代给定的链表
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_from(pos, head, member) \
|
||||
for (; \
|
||||
&pos->member != (head); \
|
||||
pos = list_next_entry(pos, member))
|
||||
|
||||
/**
|
||||
* @brief 从指定的位置开始,继续迭代给定的链表.（支持删除当前链表结点）
|
||||
*
|
||||
* @param pos 指向特定类型的结构体的指针。该指针用作迭代的指针。
|
||||
* @param n 用于存储临时值的，和pos相同类型的指针
|
||||
* @param head 指向链表头的struct List的指针
|
||||
* @param member struct List在pos指向的结构体中的成员变量名
|
||||
*/
|
||||
#define list_for_each_entry_safe_from(pos, n, head, member) \
|
||||
for (n = list_next_entry(pos, member); \
|
||||
&pos->member != (head); \
|
||||
pos = n, n = list_next_entry(n, member))
|
||||
104
kernel/src/common/lockref.h
Normal file
104
kernel/src/common/lockref.h
Normal file
@ -0,0 +1,104 @@
|
||||
#pragma once
|
||||
|
||||
#include <common/sys/types.h>
|
||||
#include <common/spinlock.h>
|
||||
|
||||
#if ARCH(X86_64)
|
||||
// 仅在x64架构下启用cmpxchg
|
||||
#define __LOCKREF_ENABLE_CMPXCHG__
|
||||
#endif
|
||||
struct lockref
|
||||
{
|
||||
union
|
||||
{
|
||||
#ifdef __LOCKREF_ENABLE_CMPXCHG__
|
||||
aligned_u64 lock_count; // 通过该变量的声明，使得整个lockref按照8字节对齐
|
||||
#endif
|
||||
struct
|
||||
{
|
||||
spinlock_t lock;
|
||||
int count;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 原子的将引用计数加1
|
||||
*
|
||||
* @param lock_ref 要被操作的lockref变量
|
||||
*/
|
||||
void lockref_inc(struct lockref *lock_ref);
|
||||
|
||||
/**
|
||||
* @brief 原子地将引用计数加1.如果原来的count≤0，则操作失败。
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
* @return int 操作成功=>true
|
||||
* 操作失败=>false
|
||||
*/
|
||||
bool lockref_inc_not_zero(struct lockref *lock_ref);
|
||||
|
||||
/**
|
||||
* @brief 原子地减少引用计数。如果已处于count≤0的状态，则返回-1
|
||||
*
|
||||
* 本函数与lockref_dec_return()的区别在于，当在cmpxchg()中检测到count<=0或已加锁，本函数会再次尝试通过加锁来执行操作
|
||||
* 而后者会直接返回错误
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
* @return int 操作成功 => 返回新的引用变量值
|
||||
* lockref处于count≤0的状态 => 返回-1
|
||||
*/
|
||||
int lockref_dec(struct lockref *lock_ref);
|
||||
|
||||
/**
|
||||
* @brief 原子地减少引用计数。如果处于已加锁或count≤0的状态，则返回-1
|
||||
*
|
||||
* 本函数与lockref_dec()的区别在于，当在cmpxchg()中检测到count<=0或已加锁，本函数会直接返回错误
|
||||
* 而后者会再次尝试通过加锁来执行操作
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
* @return int 操作成功 => 返回新的引用变量值
|
||||
* lockref处于已加锁或count≤0的状态 => 返回-1
|
||||
*/
|
||||
int lockref_dec_return(struct lockref *lock_ref);
|
||||
|
||||
|
||||
/**
|
||||
* @brief 原子地减少引用计数。若当前的引用计数≤1，则操作失败
|
||||
*
|
||||
* 该函数与lockref_dec_or_lock_not_zero()的区别在于，当cmpxchg()时发现old.count≤1时，该函数会直接返回false.
|
||||
* 而后者在这种情况下，会尝试加锁来进行操作。
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
* @return true 成功将引用计数减1
|
||||
* @return false 如果当前的引用计数≤1，操作失败
|
||||
*/
|
||||
bool lockref_dec_not_zero(struct lockref *lock_ref);
|
||||
|
||||
/**
|
||||
* @brief 原子地减少引用计数。若当前的引用计数≤1，则操作失败
|
||||
*
|
||||
* 该函数与lockref_dec_not_zero()的区别在于，当cmpxchg()时发现old.count≤1时，该函数会尝试加锁来进行操作。
|
||||
* 而后者在这种情况下，会直接返回false.
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
* @return true 成功将引用计数减1
|
||||
* @return false 如果当前的引用计数≤1，操作失败
|
||||
*/
|
||||
bool lockref_dec_or_lock_not_zero(struct lockref *lock_ref);
|
||||
|
||||
/**
|
||||
* @brief 将lockref变量标记为已经死亡（将count设置为负值）
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
*/
|
||||
void lockref_mark_dead(struct lockref * lock_ref);
|
||||
|
||||
/**
|
||||
* @brief 自增引用计数。（除非该lockref已经死亡）
|
||||
*
|
||||
* @param lock_ref 指向要被操作的lockref变量的指针
|
||||
* @return true 操作成功
|
||||
* @return false 操作失败，lockref已死亡
|
||||
*/
|
||||
bool lockref_inc_not_dead(struct lockref *lock_ref);
|
||||
771
kernel/src/common/lz4.h
Normal file
771
kernel/src/common/lz4.h
Normal file
@ -0,0 +1,771 @@
|
||||
/*
|
||||
* LZ4 - Fast LZ compression algorithm
|
||||
* Header File
|
||||
* Copyright (C) 2011-present, Yann Collet.
|
||||
|
||||
BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
You can contact the author at :
|
||||
- LZ4 homepage : http://www.lz4.org
|
||||
- LZ4 source repository : https://github.com/lz4/lz4
|
||||
*/
|
||||
#if defined(__cplusplus)
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
#ifndef LZ4_H_2983827168210
|
||||
#define LZ4_H_2983827168210
|
||||
|
||||
/* --- Dependency --- */
|
||||
#include <common/stddef.h> /* size_t */
|
||||
|
||||
/**
|
||||
Introduction
|
||||
|
||||
LZ4 is lossless compression algorithm, providing compression speed >500 MB/s per core,
|
||||
scalable with multi-cores CPU. It features an extremely fast decoder, with speed in
|
||||
multiple GB/s per core, typically reaching RAM speed limits on multi-core systems.
|
||||
|
||||
The LZ4 compression library provides in-memory compression and decompression functions.
|
||||
It gives full buffer control to user.
|
||||
Compression can be done in:
|
||||
- a single step (described as Simple Functions)
|
||||
- a single step, reusing a context (described in Advanced Functions)
|
||||
- unbounded multiple steps (described as Streaming compression)
|
||||
|
||||
lz4.h generates and decodes LZ4-compressed blocks (doc/lz4_Block_format.md).
|
||||
Decompressing such a compressed block requires additional metadata.
|
||||
Exact metadata depends on exact decompression function.
|
||||
For the typical case of LZ4_decompress_safe(),
|
||||
metadata includes block's compressed size, and maximum bound of decompressed size.
|
||||
Each application is free to encode and pass such metadata in whichever way it wants.
|
||||
|
||||
lz4.h only handle blocks, it can not generate Frames.
|
||||
|
||||
Blocks are different from Frames (doc/lz4_Frame_format.md).
|
||||
Frames bundle both blocks and metadata in a specified manner.
|
||||
Embedding metadata is required for compressed data to be self-contained and portable.
|
||||
Frame format is delivered through a companion API, declared in lz4frame.h.
|
||||
The `lz4` CLI can only manage frames.
|
||||
*/
|
||||
|
||||
/*^***************************************************************
|
||||
* Export parameters
|
||||
*****************************************************************/
|
||||
/*
|
||||
* LZ4_DLL_EXPORT :
|
||||
* Enable exporting of functions when building a Windows DLL
|
||||
* LZ4LIB_VISIBILITY :
|
||||
* Control library symbols visibility.
|
||||
*/
|
||||
#ifndef LZ4LIB_VISIBILITY
|
||||
#if defined(__GNUC__) && (__GNUC__ >= 4)
|
||||
#define LZ4LIB_VISIBILITY __attribute__((visibility("default")))
|
||||
#else
|
||||
#define LZ4LIB_VISIBILITY
|
||||
#endif
|
||||
#endif
|
||||
#if defined(LZ4_DLL_EXPORT) && (LZ4_DLL_EXPORT == 1)
|
||||
#define LZ4LIB_API __declspec(dllexport) LZ4LIB_VISIBILITY
|
||||
#elif defined(LZ4_DLL_IMPORT) && (LZ4_DLL_IMPORT == 1)
|
||||
#define LZ4LIB_API __declspec(dllimport) LZ4LIB_VISIBILITY /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/
|
||||
#else
|
||||
#define LZ4LIB_API LZ4LIB_VISIBILITY
|
||||
#endif
|
||||
|
||||
/*------ Version ------*/
|
||||
#define LZ4_VERSION_MAJOR 1 /* for breaking interface changes */
|
||||
#define LZ4_VERSION_MINOR 9 /* for new (non-breaking) interface capabilities */
|
||||
#define LZ4_VERSION_RELEASE 3 /* for tweaks, bug-fixes, or development */
|
||||
|
||||
#define LZ4_VERSION_NUMBER (LZ4_VERSION_MAJOR * 100 * 100 + LZ4_VERSION_MINOR * 100 + LZ4_VERSION_RELEASE)
|
||||
|
||||
#define LZ4_LIB_VERSION LZ4_VERSION_MAJOR.LZ4_VERSION_MINOR.LZ4_VERSION_RELEASE
|
||||
#define LZ4_QUOTE(str) #str
|
||||
#define LZ4_EXPAND_AND_QUOTE(str) LZ4_QUOTE(str)
|
||||
#define LZ4_VERSION_STRING LZ4_EXPAND_AND_QUOTE(LZ4_LIB_VERSION)
|
||||
|
||||
LZ4LIB_API int LZ4_versionNumber(void); /**< library version number; useful to check dll version */
|
||||
LZ4LIB_API const char *LZ4_versionString(void); /**< library version string; useful to check dll version */
|
||||
|
||||
/*-************************************
|
||||
* Tuning parameter
|
||||
**************************************/
|
||||
/*!
|
||||
* LZ4_MEMORY_USAGE :
|
||||
* Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; etc.)
|
||||
* Increasing memory usage improves compression ratio.
|
||||
* Reduced memory usage may improve speed, thanks to better cache locality.
|
||||
* Default value is 14, for 16KB, which nicely fits into Intel x86 L1 cache
|
||||
*/
|
||||
#ifndef LZ4_MEMORY_USAGE
|
||||
#define LZ4_MEMORY_USAGE 14
|
||||
#endif
|
||||
|
||||
/*-************************************
|
||||
* Simple Functions
|
||||
**************************************/
|
||||
/*! LZ4_compress_default() :
|
||||
* Compresses 'srcSize' bytes from buffer 'src'
|
||||
* into already allocated 'dst' buffer of size 'dstCapacity'.
|
||||
* Compression is guaranteed to succeed if 'dstCapacity' >= LZ4_compressBound(srcSize).
|
||||
* It also runs faster, so it's a recommended setting.
|
||||
* If the function cannot compress 'src' into a more limited 'dst' budget,
|
||||
* compression stops *immediately*, and the function result is zero.
|
||||
* In which case, 'dst' content is undefined (invalid).
|
||||
* srcSize : max supported value is LZ4_MAX_INPUT_SIZE.
|
||||
* dstCapacity : size of buffer 'dst' (which must be already allocated)
|
||||
* @return : the number of bytes written into buffer 'dst' (necessarily <= dstCapacity)
|
||||
* or 0 if compression fails
|
||||
* Note : This function is protected against buffer overflow scenarios (never writes outside 'dst' buffer, nor read outside 'source' buffer).
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_default(const char *src, char *dst, int srcSize, int dstCapacity);
|
||||
|
||||
/*! LZ4_decompress_safe() :
|
||||
* compressedSize : is the exact complete size of the compressed block.
|
||||
* dstCapacity : is the size of destination buffer (which must be already allocated), presumed an upper bound of decompressed size.
|
||||
* @return : the number of bytes decompressed into destination buffer (necessarily <= dstCapacity)
|
||||
* If destination buffer is not large enough, decoding will stop and output an error code (negative value).
|
||||
* If the source stream is detected malformed, the function will stop decoding and return a negative result.
|
||||
* Note 1 : This function is protected against malicious data packets :
|
||||
* it will never writes outside 'dst' buffer, nor read outside 'source' buffer,
|
||||
* even if the compressed block is maliciously modified to order the decoder to do these actions.
|
||||
* In such case, the decoder stops immediately, and considers the compressed block malformed.
|
||||
* Note 2 : compressedSize and dstCapacity must be provided to the function, the compressed block does not contain them.
|
||||
* The implementation is free to send / store / derive this information in whichever way is most beneficial.
|
||||
* If there is a need for a different format which bundles together both compressed data and its metadata, consider looking at lz4frame.h instead.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe(const char *src, char *dst, int compressedSize, int dstCapacity);
|
||||
|
||||
/*-************************************
|
||||
* Advanced Functions
|
||||
**************************************/
|
||||
#define LZ4_MAX_INPUT_SIZE 0x7E000000 /* 2 113 929 216 bytes */
|
||||
#define LZ4_COMPRESSBOUND(isize) ((unsigned)(isize) > (unsigned)LZ4_MAX_INPUT_SIZE ? 0 : (isize) + ((isize) / 255) + 16)
|
||||
|
||||
/*! LZ4_compressBound() :
|
||||
Provides the maximum size that LZ4 compression may output in a "worst case" scenario (input data not compressible)
|
||||
This function is primarily useful for memory allocation purposes (destination buffer size).
|
||||
Macro LZ4_COMPRESSBOUND() is also provided for compilation-time evaluation (stack memory allocation for example).
|
||||
Note that LZ4_compress_default() compresses faster when dstCapacity is >= LZ4_compressBound(srcSize)
|
||||
inputSize : max supported value is LZ4_MAX_INPUT_SIZE
|
||||
return : maximum output size in a "worst case" scenario
|
||||
or 0, if input size is incorrect (too large or negative)
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compressBound(int inputSize);
|
||||
|
||||
/*! LZ4_compress_fast() :
|
||||
Same as LZ4_compress_default(), but allows selection of "acceleration" factor.
|
||||
The larger the acceleration value, the faster the algorithm, but also the lesser the compression.
|
||||
It's a trade-off. It can be fine tuned, with each successive value providing roughly +~3% to speed.
|
||||
An acceleration value of "1" is the same as regular LZ4_compress_default()
|
||||
Values <= 0 will be replaced by LZ4_ACCELERATION_DEFAULT (currently == 1, see lz4.c).
|
||||
Values > LZ4_ACCELERATION_MAX will be replaced by LZ4_ACCELERATION_MAX (currently == 65537, see lz4.c).
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_fast(const char *src, char *dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
/*! LZ4_compress_fast_extState() :
|
||||
* Same as LZ4_compress_fast(), using an externally allocated memory space for its state.
|
||||
* Use LZ4_sizeofState() to know how much memory must be allocated,
|
||||
* and allocate it on 8-bytes boundaries (using `malloc()` typically).
|
||||
* Then, provide this buffer as `void* state` to compression function.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_sizeofState(void);
|
||||
LZ4LIB_API int LZ4_compress_fast_extState(void *state, const char *src, char *dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
/*! LZ4_compress_destSize() :
|
||||
* Reverse the logic : compresses as much data as possible from 'src' buffer
|
||||
* into already allocated buffer 'dst', of size >= 'targetDestSize'.
|
||||
* This function either compresses the entire 'src' content into 'dst' if it's large enough,
|
||||
* or fill 'dst' buffer completely with as much data as possible from 'src'.
|
||||
* note: acceleration parameter is fixed to "default".
|
||||
*
|
||||
* *srcSizePtr : will be modified to indicate how many bytes where read from 'src' to fill 'dst'.
|
||||
* New value is necessarily <= input value.
|
||||
* @return : Nb bytes written into 'dst' (necessarily <= targetDestSize)
|
||||
* or 0 if compression fails.
|
||||
*
|
||||
* Note : from v1.8.2 to v1.9.1, this function had a bug (fixed un v1.9.2+):
|
||||
* the produced compressed content could, in specific circumstances,
|
||||
* require to be decompressed into a destination buffer larger
|
||||
* by at least 1 byte than the content to decompress.
|
||||
* If an application uses `LZ4_compress_destSize()`,
|
||||
* it's highly recommended to update liblz4 to v1.9.2 or better.
|
||||
* If this can't be done or ensured,
|
||||
* the receiving decompression function should provide
|
||||
* a dstCapacity which is > decompressedSize, by at least 1 byte.
|
||||
* See https://github.com/lz4/lz4/issues/859 for details
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_destSize(const char *src, char *dst, int *srcSizePtr, int targetDstSize);
|
||||
|
||||
/*! LZ4_decompress_safe_partial() :
|
||||
* Decompress an LZ4 compressed block, of size 'srcSize' at position 'src',
|
||||
* into destination buffer 'dst' of size 'dstCapacity'.
|
||||
* Up to 'targetOutputSize' bytes will be decoded.
|
||||
* The function stops decoding on reaching this objective.
|
||||
* This can be useful to boost performance
|
||||
* whenever only the beginning of a block is required.
|
||||
*
|
||||
* @return : the number of bytes decoded in `dst` (necessarily <= targetOutputSize)
|
||||
* If source stream is detected malformed, function returns a negative result.
|
||||
*
|
||||
* Note 1 : @return can be < targetOutputSize, if compressed block contains less data.
|
||||
*
|
||||
* Note 2 : targetOutputSize must be <= dstCapacity
|
||||
*
|
||||
* Note 3 : this function effectively stops decoding on reaching targetOutputSize,
|
||||
* so dstCapacity is kind of redundant.
|
||||
* This is because in older versions of this function,
|
||||
* decoding operation would still write complete sequences.
|
||||
* Therefore, there was no guarantee that it would stop writing at exactly targetOutputSize,
|
||||
* it could write more bytes, though only up to dstCapacity.
|
||||
* Some "margin" used to be required for this operation to work properly.
|
||||
* Thankfully, this is no longer necessary.
|
||||
* The function nonetheless keeps the same signature, in an effort to preserve API compatibility.
|
||||
*
|
||||
* Note 4 : If srcSize is the exact size of the block,
|
||||
* then targetOutputSize can be any value,
|
||||
* including larger than the block's decompressed size.
|
||||
* The function will, at most, generate block's decompressed size.
|
||||
*
|
||||
* Note 5 : If srcSize is _larger_ than block's compressed size,
|
||||
* then targetOutputSize **MUST** be <= block's decompressed size.
|
||||
* Otherwise, *silent corruption will occur*.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe_partial(const char *src, char *dst, int srcSize, int targetOutputSize, int dstCapacity);
|
||||
|
||||
/*-*********************************************
|
||||
* Streaming Compression Functions
|
||||
***********************************************/
|
||||
typedef union LZ4_stream_u LZ4_stream_t; /* incomplete type (defined later) */
|
||||
|
||||
LZ4LIB_API LZ4_stream_t *LZ4_createStream(void);
|
||||
LZ4LIB_API int LZ4_freeStream(LZ4_stream_t *streamPtr);
|
||||
|
||||
/*! LZ4_resetStream_fast() : v1.9.0+
|
||||
* Use this to prepare an LZ4_stream_t for a new chain of dependent blocks
|
||||
* (e.g., LZ4_compress_fast_continue()).
|
||||
*
|
||||
* An LZ4_stream_t must be initialized once before usage.
|
||||
* This is automatically done when created by LZ4_createStream().
|
||||
* However, should the LZ4_stream_t be simply declared on stack (for example),
|
||||
* it's necessary to initialize it first, using LZ4_initStream().
|
||||
*
|
||||
* After init, start any new stream with LZ4_resetStream_fast().
|
||||
* A same LZ4_stream_t can be re-used multiple times consecutively
|
||||
* and compress multiple streams,
|
||||
* provided that it starts each new stream with LZ4_resetStream_fast().
|
||||
*
|
||||
* LZ4_resetStream_fast() is much faster than LZ4_initStream(),
|
||||
* but is not compatible with memory regions containing garbage data.
|
||||
*
|
||||
* Note: it's only useful to call LZ4_resetStream_fast()
|
||||
* in the context of streaming compression.
|
||||
* The *extState* functions perform their own resets.
|
||||
* Invoking LZ4_resetStream_fast() before is redundant, and even counterproductive.
|
||||
*/
|
||||
LZ4LIB_API void LZ4_resetStream_fast(LZ4_stream_t *streamPtr);
|
||||
|
||||
/*! LZ4_loadDict() :
|
||||
* Use this function to reference a static dictionary into LZ4_stream_t.
|
||||
* The dictionary must remain available during compression.
|
||||
* LZ4_loadDict() triggers a reset, so any previous data will be forgotten.
|
||||
* The same dictionary will have to be loaded on decompression side for successful decoding.
|
||||
* Dictionary are useful for better compression of small data (KB range).
|
||||
* While LZ4 accept any input as dictionary,
|
||||
* results are generally better when using Zstandard's Dictionary Builder.
|
||||
* Loading a size of 0 is allowed, and is the same as reset.
|
||||
* @return : loaded dictionary size, in bytes (necessarily <= 64 KB)
|
||||
*/
|
||||
LZ4LIB_API int LZ4_loadDict(LZ4_stream_t *streamPtr, const char *dictionary, int dictSize);
|
||||
|
||||
/*! LZ4_compress_fast_continue() :
|
||||
* Compress 'src' content using data from previously compressed blocks, for better compression ratio.
|
||||
* 'dst' buffer must be already allocated.
|
||||
* If dstCapacity >= LZ4_compressBound(srcSize), compression is guaranteed to succeed, and runs faster.
|
||||
*
|
||||
* @return : size of compressed block
|
||||
* or 0 if there is an error (typically, cannot fit into 'dst').
|
||||
*
|
||||
* Note 1 : Each invocation to LZ4_compress_fast_continue() generates a new block.
|
||||
* Each block has precise boundaries.
|
||||
* Each block must be decompressed separately, calling LZ4_decompress_*() with relevant metadata.
|
||||
* It's not possible to append blocks together and expect a single invocation of LZ4_decompress_*() to decompress them together.
|
||||
*
|
||||
* Note 2 : The previous 64KB of source data is __assumed__ to remain present, unmodified, at same address in memory !
|
||||
*
|
||||
* Note 3 : When input is structured as a double-buffer, each buffer can have any size, including < 64 KB.
|
||||
* Make sure that buffers are separated, by at least one byte.
|
||||
* This construction ensures that each block only depends on previous block.
|
||||
*
|
||||
* Note 4 : If input buffer is a ring-buffer, it can have any size, including < 64 KB.
|
||||
*
|
||||
* Note 5 : After an error, the stream status is undefined (invalid), it can only be reset or freed.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_compress_fast_continue(LZ4_stream_t *streamPtr, const char *src, char *dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
/*! LZ4_saveDict() :
|
||||
* If last 64KB data cannot be guaranteed to remain available at its current memory location,
|
||||
* save it into a safer place (char* safeBuffer).
|
||||
* This is schematically equivalent to a memcpy() followed by LZ4_loadDict(),
|
||||
* but is much faster, because LZ4_saveDict() doesn't need to rebuild tables.
|
||||
* @return : saved dictionary size in bytes (necessarily <= maxDictSize), or 0 if error.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_saveDict(LZ4_stream_t *streamPtr, char *safeBuffer, int maxDictSize);
|
||||
|
||||
/*-**********************************************
|
||||
* Streaming Decompression Functions
|
||||
* Bufferless synchronous API
|
||||
************************************************/
|
||||
typedef union LZ4_streamDecode_u LZ4_streamDecode_t; /* tracking context */
|
||||
|
||||
/*! LZ4_createStreamDecode() and LZ4_freeStreamDecode() :
|
||||
* creation / destruction of streaming decompression tracking context.
|
||||
* A tracking context can be re-used multiple times.
|
||||
*/
|
||||
LZ4LIB_API LZ4_streamDecode_t *LZ4_createStreamDecode(void);
|
||||
LZ4LIB_API int LZ4_freeStreamDecode(LZ4_streamDecode_t *LZ4_stream);
|
||||
|
||||
/*! LZ4_setStreamDecode() :
|
||||
* An LZ4_streamDecode_t context can be allocated once and re-used multiple times.
|
||||
* Use this function to start decompression of a new stream of blocks.
|
||||
* A dictionary can optionally be set. Use NULL or size 0 for a reset order.
|
||||
* Dictionary is presumed stable : it must remain accessible and unmodified during next decompression.
|
||||
* @return : 1 if OK, 0 if error
|
||||
*/
|
||||
LZ4LIB_API int LZ4_setStreamDecode(LZ4_streamDecode_t *LZ4_streamDecode, const char *dictionary, int dictSize);
|
||||
|
||||
/*! LZ4_decoderRingBufferSize() : v1.8.2+
|
||||
* Note : in a ring buffer scenario (optional),
|
||||
* blocks are presumed decompressed next to each other
|
||||
* up to the moment there is not enough remaining space for next block (remainingSize < maxBlockSize),
|
||||
* at which stage it resumes from beginning of ring buffer.
|
||||
* When setting such a ring buffer for streaming decompression,
|
||||
* provides the minimum size of this ring buffer
|
||||
* to be compatible with any source respecting maxBlockSize condition.
|
||||
* @return : minimum ring buffer size,
|
||||
* or 0 if there is an error (invalid maxBlockSize).
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decoderRingBufferSize(int maxBlockSize);
|
||||
#define LZ4_DECODER_RING_BUFFER_SIZE(maxBlockSize) (65536 + 14 + (maxBlockSize)) /* for static allocation; maxBlockSize presumed valid */
|
||||
|
||||
/*! LZ4_decompress_*_continue() :
|
||||
* These decoding functions allow decompression of consecutive blocks in "streaming" mode.
|
||||
* A block is an unsplittable entity, it must be presented entirely to a decompression function.
|
||||
* Decompression functions only accepts one block at a time.
|
||||
* The last 64KB of previously decoded data *must* remain available and unmodified at the memory position where they were decoded.
|
||||
* If less than 64KB of data has been decoded, all the data must be present.
|
||||
*
|
||||
* Special : if decompression side sets a ring buffer, it must respect one of the following conditions :
|
||||
* - Decompression buffer size is _at least_ LZ4_decoderRingBufferSize(maxBlockSize).
|
||||
* maxBlockSize is the maximum size of any single block. It can have any value > 16 bytes.
|
||||
* In which case, encoding and decoding buffers do not need to be synchronized.
|
||||
* Actually, data can be produced by any source compliant with LZ4 format specification, and respecting maxBlockSize.
|
||||
* - Synchronized mode :
|
||||
* Decompression buffer size is _exactly_ the same as compression buffer size,
|
||||
* and follows exactly same update rule (block boundaries at same positions),
|
||||
* and decoding function is provided with exact decompressed size of each block (exception for last block of the stream),
|
||||
* _then_ decoding & encoding ring buffer can have any size, including small ones ( < 64 KB).
|
||||
* - Decompression buffer is larger than encoding buffer, by a minimum of maxBlockSize more bytes.
|
||||
* In which case, encoding and decoding buffers do not need to be synchronized,
|
||||
* and encoding ring buffer can have any size, including small ones ( < 64 KB).
|
||||
*
|
||||
* Whenever these conditions are not possible,
|
||||
* save the last 64KB of decoded data into a safe buffer where it can't be modified during decompression,
|
||||
* then indicate where this data is saved using LZ4_setStreamDecode(), before decompressing next block.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe_continue(LZ4_streamDecode_t *LZ4_streamDecode, const char *src, char *dst, int srcSize, int dstCapacity);
|
||||
|
||||
/*! LZ4_decompress_*_usingDict() :
|
||||
* These decoding functions work the same as
|
||||
* a combination of LZ4_setStreamDecode() followed by LZ4_decompress_*_continue()
|
||||
* They are stand-alone, and don't need an LZ4_streamDecode_t structure.
|
||||
* Dictionary is presumed stable : it must remain accessible and unmodified during decompression.
|
||||
* Performance tip : Decompression speed can be substantially increased
|
||||
* when dst == dictStart + dictSize.
|
||||
*/
|
||||
LZ4LIB_API int LZ4_decompress_safe_usingDict(const char *src, char *dst, int srcSize, int dstCapcity, const char *dictStart, int dictSize);
|
||||
|
||||
#endif /* LZ4_H_2983827168210 */
|
||||
|
||||
/*^*************************************
|
||||
* !!!!!! STATIC LINKING ONLY !!!!!!
|
||||
***************************************/
|
||||
|
||||
/*-****************************************************************************
|
||||
* Experimental section
|
||||
*
|
||||
* Symbols declared in this section must be considered unstable. Their
|
||||
* signatures or semantics may change, or they may be removed altogether in the
|
||||
* future. They are therefore only safe to depend on when the caller is
|
||||
* statically linked against the library.
|
||||
*
|
||||
* To protect against unsafe usage, not only are the declarations guarded,
|
||||
* the definitions are hidden by default
|
||||
* when building LZ4 as a shared/dynamic library.
|
||||
*
|
||||
* In order to access these declarations,
|
||||
* define LZ4_STATIC_LINKING_ONLY in your application
|
||||
* before including LZ4's headers.
|
||||
*
|
||||
* In order to make their implementations accessible dynamically, you must
|
||||
* define LZ4_PUBLISH_STATIC_FUNCTIONS when building the LZ4 library.
|
||||
******************************************************************************/
|
||||
|
||||
#ifdef LZ4_STATIC_LINKING_ONLY
|
||||
|
||||
#ifndef LZ4_STATIC_3504398509
|
||||
#define LZ4_STATIC_3504398509
|
||||
|
||||
#ifdef LZ4_PUBLISH_STATIC_FUNCTIONS
|
||||
#define LZ4LIB_STATIC_API LZ4LIB_API
|
||||
#else
|
||||
#define LZ4LIB_STATIC_API
|
||||
#endif
|
||||
|
||||
/*! LZ4_compress_fast_extState_fastReset() :
|
||||
* A variant of LZ4_compress_fast_extState().
|
||||
*
|
||||
* Using this variant avoids an expensive initialization step.
|
||||
* It is only safe to call if the state buffer is known to be correctly initialized already
|
||||
* (see above comment on LZ4_resetStream_fast() for a definition of "correctly initialized").
|
||||
* From a high level, the difference is that
|
||||
* this function initializes the provided state with a call to something like LZ4_resetStream_fast()
|
||||
* while LZ4_compress_fast_extState() starts with a call to LZ4_resetStream().
|
||||
*/
|
||||
LZ4LIB_STATIC_API int LZ4_compress_fast_extState_fastReset(void *state, const char *src, char *dst, int srcSize, int dstCapacity, int acceleration);
|
||||
|
||||
/*! LZ4_attach_dictionary() :
|
||||
* This is an experimental API that allows
|
||||
* efficient use of a static dictionary many times.
|
||||
*
|
||||
* Rather than re-loading the dictionary buffer into a working context before
|
||||
* each compression, or copying a pre-loaded dictionary's LZ4_stream_t into a
|
||||
* working LZ4_stream_t, this function introduces a no-copy setup mechanism,
|
||||
* in which the working stream references the dictionary stream in-place.
|
||||
*
|
||||
* Several assumptions are made about the state of the dictionary stream.
|
||||
* Currently, only streams which have been prepared by LZ4_loadDict() should
|
||||
* be expected to work.
|
||||
*
|
||||
* Alternatively, the provided dictionaryStream may be NULL,
|
||||
* in which case any existing dictionary stream is unset.
|
||||
*
|
||||
* If a dictionary is provided, it replaces any pre-existing stream history.
|
||||
* The dictionary contents are the only history that can be referenced and
|
||||
* logically immediately precede the data compressed in the first subsequent
|
||||
* compression call.
|
||||
*
|
||||
* The dictionary will only remain attached to the working stream through the
|
||||
* first compression call, at the end of which it is cleared. The dictionary
|
||||
* stream (and source buffer) must remain in-place / accessible / unchanged
|
||||
* through the completion of the first compression call on the stream.
|
||||
*/
|
||||
LZ4LIB_STATIC_API void LZ4_attach_dictionary(LZ4_stream_t *workingStream, const LZ4_stream_t *dictionaryStream);
|
||||
|
||||
/*! In-place compression and decompression
|
||||
*
|
||||
* It's possible to have input and output sharing the same buffer,
|
||||
* for highly contrained memory environments.
|
||||
* In both cases, it requires input to lay at the end of the buffer,
|
||||
* and decompression to start at beginning of the buffer.
|
||||
* Buffer size must feature some margin, hence be larger than final size.
|
||||
*
|
||||
* |<------------------------buffer--------------------------------->|
|
||||
* |<-----------compressed data--------->|
|
||||
* |<-----------decompressed size------------------>|
|
||||
* |<----margin---->|
|
||||
*
|
||||
* This technique is more useful for decompression,
|
||||
* since decompressed size is typically larger,
|
||||
* and margin is short.
|
||||
*
|
||||
* In-place decompression will work inside any buffer
|
||||
* which size is >= LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize).
|
||||
* This presumes that decompressedSize > compressedSize.
|
||||
* Otherwise, it means compression actually expanded data,
|
||||
* and it would be more efficient to store such data with a flag indicating it's not compressed.
|
||||
* This can happen when data is not compressible (already compressed, or encrypted).
|
||||
*
|
||||
* For in-place compression, margin is larger, as it must be able to cope with both
|
||||
* history preservation, requiring input data to remain unmodified up to LZ4_DISTANCE_MAX,
|
||||
* and data expansion, which can happen when input is not compressible.
|
||||
* As a consequence, buffer size requirements are much higher,
|
||||
* and memory savings offered by in-place compression are more limited.
|
||||
*
|
||||
* There are ways to limit this cost for compression :
|
||||
* - Reduce history size, by modifying LZ4_DISTANCE_MAX.
|
||||
* Note that it is a compile-time constant, so all compressions will apply this limit.
|
||||
* Lower values will reduce compression ratio, except when input_size < LZ4_DISTANCE_MAX,
|
||||
* so it's a reasonable trick when inputs are known to be small.
|
||||
* - Require the compressor to deliver a "maximum compressed size".
|
||||
* This is the `dstCapacity` parameter in `LZ4_compress*()`.
|
||||
* When this size is < LZ4_COMPRESSBOUND(inputSize), then compression can fail,
|
||||
* in which case, the return code will be 0 (zero).
|
||||
* The caller must be ready for these cases to happen,
|
||||
* and typically design a backup scheme to send data uncompressed.
|
||||
* The combination of both techniques can significantly reduce
|
||||
* the amount of margin required for in-place compression.
|
||||
*
|
||||
* In-place compression can work in any buffer
|
||||
* which size is >= (maxCompressedSize)
|
||||
* with maxCompressedSize == LZ4_COMPRESSBOUND(srcSize) for guaranteed compression success.
|
||||
* LZ4_COMPRESS_INPLACE_BUFFER_SIZE() depends on both maxCompressedSize and LZ4_DISTANCE_MAX,
|
||||
* so it's possible to reduce memory requirements by playing with them.
|
||||
*/
|
||||
|
||||
#define LZ4_DECOMPRESS_INPLACE_MARGIN(compressedSize) (((compressedSize) >> 8) + 32)
|
||||
#define LZ4_DECOMPRESS_INPLACE_BUFFER_SIZE(decompressedSize) ((decompressedSize) + LZ4_DECOMPRESS_INPLACE_MARGIN(decompressedSize)) /**< note: presumes that compressedSize < decompressedSize. note2: margin is overestimated a bit, since it could use compressedSize instead */
|
||||
|
||||
#ifndef LZ4_DISTANCE_MAX /* history window size; can be user-defined at compile time */
|
||||
#define LZ4_DISTANCE_MAX 65535 /* set to maximum value by default */
|
||||
#endif
|
||||
|
||||
#define LZ4_COMPRESS_INPLACE_MARGIN (LZ4_DISTANCE_MAX + 32) /* LZ4_DISTANCE_MAX can be safely replaced by srcSize when it's smaller */
|
||||
#define LZ4_COMPRESS_INPLACE_BUFFER_SIZE(maxCompressedSize) ((maxCompressedSize) + LZ4_COMPRESS_INPLACE_MARGIN) /**< maxCompressedSize is generally LZ4_COMPRESSBOUND(inputSize), but can be set to any lower value, with the risk that compression can fail (return code 0(zero)) */
|
||||
|
||||
#endif /* LZ4_STATIC_3504398509 */
|
||||
#endif /* LZ4_STATIC_LINKING_ONLY */
|
||||
|
||||
#ifndef LZ4_H_98237428734687
|
||||
#define LZ4_H_98237428734687
|
||||
|
||||
/*-************************************************************
|
||||
* Private Definitions
|
||||
**************************************************************
|
||||
* Do not use these definitions directly.
|
||||
* They are only exposed to allow static allocation of `LZ4_stream_t` and `LZ4_streamDecode_t`.
|
||||
* Accessing members will expose user code to API and/or ABI break in future versions of the library.
|
||||
**************************************************************/
|
||||
#define LZ4_HASHLOG (LZ4_MEMORY_USAGE - 2)
|
||||
#define LZ4_HASHTABLESIZE (1 << LZ4_MEMORY_USAGE)
|
||||
#define LZ4_HASH_SIZE_U32 (1 << LZ4_HASHLOG) /* required as macro for static allocation */
|
||||
|
||||
#if defined(__cplusplus) || (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */)
|
||||
#include <stdint.h>
|
||||
typedef int8_t LZ4_i8;
|
||||
typedef uint8_t LZ4_byte;
|
||||
typedef uint16_t LZ4_u16;
|
||||
typedef uint32_t LZ4_u32;
|
||||
#else
|
||||
typedef signed char LZ4_i8;
|
||||
typedef unsigned char LZ4_byte;
|
||||
typedef unsigned short LZ4_u16;
|
||||
typedef unsigned int LZ4_u32;
|
||||
#endif
|
||||
|
||||
typedef struct LZ4_stream_t_internal LZ4_stream_t_internal;
|
||||
struct LZ4_stream_t_internal
|
||||
{
|
||||
LZ4_u32 hashTable[LZ4_HASH_SIZE_U32];
|
||||
LZ4_u32 currentOffset;
|
||||
LZ4_u32 tableType;
|
||||
const LZ4_byte *dictionary;
|
||||
const LZ4_stream_t_internal *dictCtx;
|
||||
LZ4_u32 dictSize;
|
||||
};
|
||||
|
||||
typedef struct
|
||||
{
|
||||
const LZ4_byte *externalDict;
|
||||
size_t extDictSize;
|
||||
const LZ4_byte *prefixEnd;
|
||||
size_t prefixSize;
|
||||
} LZ4_streamDecode_t_internal;
|
||||
|
||||
/*! LZ4_stream_t :
|
||||
* Do not use below internal definitions directly !
|
||||
* Declare or allocate an LZ4_stream_t instead.
|
||||
* LZ4_stream_t can also be created using LZ4_createStream(), which is recommended.
|
||||
* The structure definition can be convenient for static allocation
|
||||
* (on stack, or as part of larger structure).
|
||||
* Init this structure with LZ4_initStream() before first use.
|
||||
* note : only use this definition in association with static linking !
|
||||
* this definition is not API/ABI safe, and may change in future versions.
|
||||
*/
|
||||
#define LZ4_STREAMSIZE 16416 /* static size, for inter-version compatibility */
|
||||
#define LZ4_STREAMSIZE_VOIDP (LZ4_STREAMSIZE / sizeof(void *))
|
||||
union LZ4_stream_u
|
||||
{
|
||||
void *table[LZ4_STREAMSIZE_VOIDP];
|
||||
LZ4_stream_t_internal internal_donotuse;
|
||||
}; /* previously typedef'd to LZ4_stream_t */
|
||||
|
||||
/*! LZ4_initStream() : v1.9.0+
|
||||
* An LZ4_stream_t structure must be initialized at least once.
|
||||
* This is automatically done when invoking LZ4_createStream(),
|
||||
* but it's not when the structure is simply declared on stack (for example).
|
||||
*
|
||||
* Use LZ4_initStream() to properly initialize a newly declared LZ4_stream_t.
|
||||
* It can also initialize any arbitrary buffer of sufficient size,
|
||||
* and will @return a pointer of proper type upon initialization.
|
||||
*
|
||||
* Note : initialization fails if size and alignment conditions are not respected.
|
||||
* In which case, the function will @return NULL.
|
||||
* Note2: An LZ4_stream_t structure guarantees correct alignment and size.
|
||||
* Note3: Before v1.9.0, use LZ4_resetStream() instead
|
||||
*/
|
||||
LZ4LIB_API LZ4_stream_t *LZ4_initStream(void *buffer, size_t size);
|
||||
|
||||
/*! LZ4_streamDecode_t :
|
||||
* information structure to track an LZ4 stream during decompression.
|
||||
* init this structure using LZ4_setStreamDecode() before first use.
|
||||
* note : only use in association with static linking !
|
||||
* this definition is not API/ABI safe,
|
||||
* and may change in a future version !
|
||||
*/
|
||||
#define LZ4_STREAMDECODESIZE_U64 (4 + ((sizeof(void *) == 16) ? 2 : 0) /*AS-400*/)
|
||||
#define LZ4_STREAMDECODESIZE (LZ4_STREAMDECODESIZE_U64 * sizeof(unsigned long long))
|
||||
union LZ4_streamDecode_u
|
||||
{
|
||||
unsigned long long table[LZ4_STREAMDECODESIZE_U64];
|
||||
LZ4_streamDecode_t_internal internal_donotuse;
|
||||
}; /* previously typedef'd to LZ4_streamDecode_t */
|
||||
|
||||
/*-************************************
|
||||
* Obsolete Functions
|
||||
**************************************/
|
||||
|
||||
/*! Deprecation warnings
|
||||
*
|
||||
* Deprecated functions make the compiler generate a warning when invoked.
|
||||
* This is meant to invite users to update their source code.
|
||||
* Should deprecation warnings be a problem, it is generally possible to disable them,
|
||||
* typically with -Wno-deprecated-declarations for gcc
|
||||
* or _CRT_SECURE_NO_WARNINGS in Visual.
|
||||
*
|
||||
* Another method is to define LZ4_DISABLE_DEPRECATE_WARNINGS
|
||||
* before including the header file.
|
||||
*/
|
||||
#ifdef LZ4_DISABLE_DEPRECATE_WARNINGS
|
||||
#define LZ4_DEPRECATED(message) /* disable deprecation warnings */
|
||||
#else
|
||||
#if defined(__cplusplus) && (__cplusplus >= 201402) /* C++14 or greater */
|
||||
#define LZ4_DEPRECATED(message) [[deprecated(message)]]
|
||||
#elif defined(_MSC_VER)
|
||||
#define LZ4_DEPRECATED(message) __declspec(deprecated(message))
|
||||
#elif defined(__clang__) || (defined(__GNUC__) && (__GNUC__ * 10 + __GNUC_MINOR__ >= 45))
|
||||
#define LZ4_DEPRECATED(message) __attribute__((deprecated(message)))
|
||||
#elif defined(__GNUC__) && (__GNUC__ * 10 + __GNUC_MINOR__ >= 31)
|
||||
#define LZ4_DEPRECATED(message) __attribute__((deprecated))
|
||||
#else
|
||||
#pragma message("WARNING: LZ4_DEPRECATED needs custom implementation for this compiler")
|
||||
#define LZ4_DEPRECATED(message) /* disabled */
|
||||
#endif
|
||||
#endif /* LZ4_DISABLE_DEPRECATE_WARNINGS */
|
||||
|
||||
/*! Obsolete compression functions (since v1.7.3) */
|
||||
LZ4_DEPRECATED("use LZ4_compress_default() instead")
|
||||
LZ4LIB_API int LZ4_compress(const char *src, char *dest, int srcSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_default() instead")
|
||||
LZ4LIB_API int LZ4_compress_limitedOutput(const char *src, char *dest, int srcSize, int maxOutputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead")
|
||||
LZ4LIB_API int LZ4_compress_withState(void *state, const char *source, char *dest, int inputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_extState() instead")
|
||||
LZ4LIB_API int LZ4_compress_limitedOutput_withState(void *state, const char *source, char *dest, int inputSize, int maxOutputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead")
|
||||
LZ4LIB_API int LZ4_compress_continue(LZ4_stream_t *LZ4_streamPtr, const char *source, char *dest, int inputSize);
|
||||
LZ4_DEPRECATED("use LZ4_compress_fast_continue() instead")
|
||||
LZ4LIB_API int LZ4_compress_limitedOutput_continue(LZ4_stream_t *LZ4_streamPtr, const char *source, char *dest, int inputSize, int maxOutputSize);
|
||||
|
||||
/*! Obsolete decompression functions (since v1.8.0) */
|
||||
LZ4_DEPRECATED("use LZ4_decompress_fast() instead")
|
||||
LZ4LIB_API int LZ4_uncompress(const char *source, char *dest, int outputSize);
|
||||
LZ4_DEPRECATED("use LZ4_decompress_safe() instead")
|
||||
LZ4LIB_API int LZ4_uncompress_unknownOutputSize(const char *source, char *dest, int isize, int maxOutputSize);
|
||||
|
||||
/* Obsolete streaming functions (since v1.7.0)
|
||||
* degraded functionality; do not use!
|
||||
*
|
||||
* In order to perform streaming compression, these functions depended on data
|
||||
* that is no longer tracked in the state. They have been preserved as well as
|
||||
* possible: using them will still produce a correct output. However, they don't
|
||||
* actually retain any history between compression calls. The compression ratio
|
||||
* achieved will therefore be no better than compressing each chunk
|
||||
* independently.
|
||||
*/
|
||||
LZ4_DEPRECATED("Use LZ4_createStream() instead")
|
||||
LZ4LIB_API void *LZ4_create(char *inputBuffer);
|
||||
LZ4_DEPRECATED("Use LZ4_createStream() instead")
|
||||
LZ4LIB_API int LZ4_sizeofStreamState(void);
|
||||
LZ4_DEPRECATED("Use LZ4_resetStream() instead")
|
||||
LZ4LIB_API int LZ4_resetStreamState(void *state, char *inputBuffer);
|
||||
LZ4_DEPRECATED("Use LZ4_saveDict() instead")
|
||||
LZ4LIB_API char *LZ4_slideInputBuffer(void *state);
|
||||
|
||||
/*! Obsolete streaming decoding functions (since v1.7.0) */
|
||||
LZ4_DEPRECATED("use LZ4_decompress_safe_usingDict() instead")
|
||||
LZ4LIB_API int LZ4_decompress_safe_withPrefix64k(const char *src, char *dst, int compressedSize, int maxDstSize);
|
||||
LZ4_DEPRECATED("use LZ4_decompress_fast_usingDict() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast_withPrefix64k(const char *src, char *dst, int originalSize);
|
||||
|
||||
/*! Obsolete LZ4_decompress_fast variants (since v1.9.0) :
|
||||
* These functions used to be faster than LZ4_decompress_safe(),
|
||||
* but this is no longer the case. They are now slower.
|
||||
* This is because LZ4_decompress_fast() doesn't know the input size,
|
||||
* and therefore must progress more cautiously into the input buffer to not read beyond the end of block.
|
||||
* On top of that `LZ4_decompress_fast()` is not protected vs malformed or malicious inputs, making it a security liability.
|
||||
* As a consequence, LZ4_decompress_fast() is strongly discouraged, and deprecated.
|
||||
*
|
||||
* The last remaining LZ4_decompress_fast() specificity is that
|
||||
* it can decompress a block without knowing its compressed size.
|
||||
* Such functionality can be achieved in a more secure manner
|
||||
* by employing LZ4_decompress_safe_partial().
|
||||
*
|
||||
* Parameters:
|
||||
* originalSize : is the uncompressed size to regenerate.
|
||||
* `dst` must be already allocated, its size must be >= 'originalSize' bytes.
|
||||
* @return : number of bytes read from source buffer (== compressed size).
|
||||
* The function expects to finish at block's end exactly.
|
||||
* If the source stream is detected malformed, the function stops decoding and returns a negative result.
|
||||
* note : LZ4_decompress_fast*() requires originalSize. Thanks to this information, it never writes past the output buffer.
|
||||
* However, since it doesn't know its 'src' size, it may read an unknown amount of input, past input buffer bounds.
|
||||
* Also, since match offsets are not validated, match reads from 'src' may underflow too.
|
||||
* These issues never happen if input (compressed) data is correct.
|
||||
* But they may happen if input data is invalid (error or intentional tampering).
|
||||
* As a consequence, use these functions in trusted environments with trusted data **only**.
|
||||
*/
|
||||
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast(const char *src, char *dst, int originalSize);
|
||||
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe_continue() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast_continue(LZ4_streamDecode_t *LZ4_streamDecode, const char *src, char *dst, int originalSize);
|
||||
LZ4_DEPRECATED("This function is deprecated and unsafe. Consider using LZ4_decompress_safe_usingDict() instead")
|
||||
LZ4LIB_API int LZ4_decompress_fast_usingDict(const char *src, char *dst, int originalSize, const char *dictStart, int dictSize);
|
||||
|
||||
/*! LZ4_resetStream() :
|
||||
* An LZ4_stream_t structure must be initialized at least once.
|
||||
* This is done with LZ4_initStream(), or LZ4_resetStream().
|
||||
* Consider switching to LZ4_initStream(),
|
||||
* invoking LZ4_resetStream() will trigger deprecation warnings in the future.
|
||||
*/
|
||||
LZ4LIB_API void LZ4_resetStream(LZ4_stream_t *streamPtr);
|
||||
|
||||
#endif /* LZ4_H_98237428734687 */
|
||||
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
10
kernel/src/common/math.h
Normal file
10
kernel/src/common/math.h
Normal file
@ -0,0 +1,10 @@
|
||||
#pragma once
|
||||
#include "stddef.h"
|
||||
#include <arch/arch.h>
|
||||
#if ARCH(I386) || ARCH(X86_64)
|
||||
#include <arch/x86_64/math/bitcount.h>
|
||||
#else
|
||||
#error Arch not supported.
|
||||
#endif
|
||||
|
||||
int64_t pow(int64_t x, int y);
|
||||
14
kernel/src/common/math/Makefile
Normal file
14
kernel/src/common/math/Makefile
Normal file
@ -0,0 +1,14 @@
|
||||
|
||||
|
||||
CFLAGS += -I .
|
||||
|
||||
all: fabs.o round.o pow.o
|
||||
|
||||
fabs.o: fabs.c
|
||||
$(CC) $(CFLAGS) -c fabs.c -o fabs.o
|
||||
|
||||
round.o: round.c
|
||||
$(CC) $(CFLAGS) -c round.c -o round.o
|
||||
|
||||
pow.o: pow.c
|
||||
$(CC) $(CFLAGS) -c pow.c -o pow.o
|
||||
30
kernel/src/common/math/fabs.c
Normal file
30
kernel/src/common/math/fabs.c
Normal file
@ -0,0 +1,30 @@
|
||||
#include <common/math.h>
|
||||
#include <common/sys/types.h>
|
||||
#include "libm.h"
|
||||
|
||||
double fabs(double x)
|
||||
{
|
||||
union
|
||||
{
|
||||
double f;
|
||||
uint64_t i;
|
||||
} u = {x};
|
||||
u.i &= -1ULL / 2;
|
||||
return u.f;
|
||||
}
|
||||
|
||||
|
||||
#if __LDBL_MANT_DIG__ == 53 && __LDBL_MAX_EXP__ == 1024
|
||||
long double fabsl(long double x)
|
||||
{
|
||||
return fabs(x);
|
||||
}
|
||||
#elif (__LDBL_MANT_DIG__ == 64 || __LDBL_MANT_DIG__ == 113) && __LDBL_MAX_EXP__ == 16384
|
||||
long double fabsl(long double x)
|
||||
{
|
||||
union ldshape u = {x};
|
||||
|
||||
u.i.se &= 0x7fff;
|
||||
return u.f;
|
||||
}
|
||||
#endif
|
||||
75
kernel/src/common/math/libm.h
Normal file
75
kernel/src/common/math/libm.h
Normal file
@ -0,0 +1,75 @@
|
||||
#pragma once
|
||||
#include <common/sys/types.h>
|
||||
|
||||
// ===== 描述long double 的数据比特结构
|
||||
#if __LDBL_MANT_DIG__ == 53 && __LDBL_MAX_EXP__ == 1024
|
||||
#elif __LDBL_MANT_DIG__ == 64 && __LDBL_MAX_EXP__ == 16384 && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
||||
union ldshape
|
||||
{
|
||||
long double f;
|
||||
struct
|
||||
{
|
||||
uint64_t m;
|
||||
uint16_t se;
|
||||
} i;
|
||||
};
|
||||
#elif __LDBL_MANT_DIG__ == 113 && __LDBL_MAX_EXP__ == 16384 && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
|
||||
union ldshape
|
||||
{
|
||||
long double f;
|
||||
struct
|
||||
{
|
||||
uint64_t lo;
|
||||
uint32_t mid;
|
||||
uint16_t top;
|
||||
uint16_t se;
|
||||
} i;
|
||||
struct
|
||||
{
|
||||
uint64_t lo;
|
||||
uint64_t hi;
|
||||
} i2;
|
||||
};
|
||||
#elif __LDBL_MANT_DIG__ == 113 && __LDBL_MAX_EXP__ == 16384 && __BYTE_ORDER__ == __BIG_ENDIAN
|
||||
union ldshape
|
||||
{
|
||||
long double f;
|
||||
struct
|
||||
{
|
||||
uint16_t se;
|
||||
uint16_t top;
|
||||
uint32_t mid;
|
||||
uint64_t lo;
|
||||
} i;
|
||||
struct
|
||||
{
|
||||
uint64_t hi;
|
||||
uint64_t lo;
|
||||
} i2;
|
||||
};
|
||||
#else
|
||||
#error Unsupported long double representation
|
||||
#endif
|
||||
|
||||
#define FORCE_EVAL(x) \
|
||||
do \
|
||||
{ \
|
||||
if (sizeof(x) == sizeof(float)) \
|
||||
{ \
|
||||
volatile float __x; \
|
||||
__x = (x); \
|
||||
(void)__x; \
|
||||
} \
|
||||
else if (sizeof(x) == sizeof(double)) \
|
||||
{ \
|
||||
volatile double __x; \
|
||||
__x = (x); \
|
||||
(void)__x; \
|
||||
} \
|
||||
else \
|
||||
{ \
|
||||
volatile long double __x; \
|
||||
__x = (x); \
|
||||
(void)__x; \
|
||||
} \
|
||||
} while (0)
|
||||
21
kernel/src/common/math/pow.c
Normal file
21
kernel/src/common/math/pow.c
Normal file
@ -0,0 +1,21 @@
|
||||
#include <common/math.h>
|
||||
#include <common/stddef.h>
|
||||
|
||||
int64_t pow(int64_t x, int y)
|
||||
{
|
||||
if (y == 0)
|
||||
return 1;
|
||||
if (y == 1)
|
||||
return x;
|
||||
if (y == 2)
|
||||
return x * x;
|
||||
int64_t res = 1;
|
||||
while (y != 0)
|
||||
{
|
||||
if (y & 1)
|
||||
res *= x;
|
||||
y >>= 1;
|
||||
x *= x;
|
||||
}
|
||||
return res;
|
||||
}
|
||||
43
kernel/src/common/math/round.c
Normal file
43
kernel/src/common/math/round.c
Normal file
@ -0,0 +1,43 @@
|
||||
|
||||
|
||||
#include "libm.h"
|
||||
|
||||
#if __FLT_EVAL_METHOD__ == 0 || __FLT_EVAL_METHOD__ == 1
|
||||
#define EPS __DBL_EPSILON__
|
||||
#elif __FLT_EVAL_METHOD__ == 2
|
||||
#define EPS __LDBL_EPSILON__
|
||||
#endif
|
||||
static const double toint = 1 / EPS;
|
||||
|
||||
double round(double x)
|
||||
{
|
||||
union
|
||||
{
|
||||
double f;
|
||||
uint64_t i;
|
||||
} u = {x};
|
||||
|
||||
int e = u.i >> 52 & 0x7ff;
|
||||
double y;
|
||||
|
||||
if (e >= 0x3ff + 52)
|
||||
return x;
|
||||
if (u.i >> 63)
|
||||
x = -x;
|
||||
if (e < 0x3ff - 1)
|
||||
{
|
||||
/* raise inexact if x!=0 */
|
||||
FORCE_EVAL(x + toint);
|
||||
return 0 * u.f;
|
||||
}
|
||||
y = x + toint - toint - x;
|
||||
if (y > 0.5)
|
||||
y = y + x - 1;
|
||||
else if (y <= -0.5)
|
||||
y = y + x + 1;
|
||||
else
|
||||
y = y + x;
|
||||
if (u.i >> 63)
|
||||
y = -y;
|
||||
return y;
|
||||
}
|
||||
69
kernel/src/common/mutex.h
Normal file
69
kernel/src/common/mutex.h
Normal file
@ -0,0 +1,69 @@
|
||||
#pragma once
|
||||
|
||||
#include <common/atomic.h>
|
||||
#include <common/spinlock.h>
|
||||
#include <common/glib.h>
|
||||
#include <process/proc-types.h>
|
||||
|
||||
/**
|
||||
* @brief Mutex - 互斥锁
|
||||
*
|
||||
* - 同一时间只有1个任务可以持有mutex
|
||||
* - 不允许递归地加锁、解锁
|
||||
* - 只允许通过mutex的api来操作mutex
|
||||
* - 在硬中断、软中断中不能使用mutex
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
|
||||
atomic_t count; // 锁计数。1->已解锁。 0->已上锁,且有可能存在等待者
|
||||
spinlock_t wait_lock; // mutex操作锁，用于对mutex的list的操作进行加锁
|
||||
struct List wait_list; // Mutex的等待队列
|
||||
} mutex_t;
|
||||
|
||||
/**
|
||||
* @brief 在mutex上的等待者的结构体
|
||||
*
|
||||
*/
|
||||
struct mutex_waiter_t
|
||||
{
|
||||
struct List list;
|
||||
struct process_control_block *pcb;
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 初始化互斥量
|
||||
*
|
||||
* @param lock mutex结构体
|
||||
*/
|
||||
void mutex_init(mutex_t *lock);
|
||||
|
||||
/**
|
||||
* @brief 对互斥量加锁
|
||||
*
|
||||
* @param lock mutex结构体
|
||||
*/
|
||||
void mutex_lock(mutex_t *lock);
|
||||
|
||||
/**
|
||||
* @brief 对互斥量解锁
|
||||
*
|
||||
* @param lock mutex结构体
|
||||
*/
|
||||
void mutex_unlock(mutex_t *lock);
|
||||
|
||||
/**
|
||||
* @brief 尝试对互斥量加锁
|
||||
*
|
||||
* @param lock mutex结构体
|
||||
*
|
||||
* @return 成功加锁->1, 加锁失败->0
|
||||
*/
|
||||
int mutex_trylock(mutex_t *lock);
|
||||
|
||||
/**
|
||||
* @brief 判断mutex是否已被加锁
|
||||
*
|
||||
* @return 已加锁->1, 未加锁->0
|
||||
*/
|
||||
#define mutex_is_locked(lock) ((atomic_read(&(lock)->count) == 1) ? 0 : 1)
|
||||
3
kernel/src/common/numa.h
Normal file
3
kernel/src/common/numa.h
Normal file
@ -0,0 +1,3 @@
|
||||
#pragma once
|
||||
|
||||
#define NUMA_NO_NODE (-1)
|
||||
84
kernel/src/common/printk.h
Normal file
84
kernel/src/common/printk.h
Normal file
@ -0,0 +1,84 @@
|
||||
//
|
||||
// Created by longjin on 2022/1/21.
|
||||
//
|
||||
#pragma once
|
||||
#pragma GCC push_options
|
||||
#pragma GCC optimize("O0")
|
||||
#define PAD_ZERO 1 // 0填充
|
||||
#define LEFT 2 // 靠左对齐
|
||||
#define RIGHT 4 // 靠右对齐
|
||||
#define PLUS 8 // 在正数前面显示加号
|
||||
#define SPACE 16
|
||||
#define SPECIAL 32 // 在八进制数前面显示 '0o'，在十六进制数前面显示 '0x' 或 '0X'
|
||||
#define SMALL 64 // 十进制以上数字显示小写字母
|
||||
#define SIGN 128 // 显示符号位
|
||||
|
||||
#define is_digit(c) ((c) >= '0' && (c) <= '9') // 用来判断是否是数字的宏
|
||||
|
||||
// 字体颜色的宏定义
|
||||
#define WHITE 0x00ffffff //白
|
||||
#define BLACK 0x00000000 //黑
|
||||
#define RED 0x00ff0000 //红
|
||||
#define ORANGE 0x00ff8000 //橙
|
||||
#define YELLOW 0x00ffff00 //黄
|
||||
#define GREEN 0x0000ff00 //绿
|
||||
#define BLUE 0x000000ff //蓝
|
||||
#define INDIGO 0x0000ffff //靛
|
||||
#define PURPLE 0x008000ff //紫
|
||||
|
||||
// 异常的宏定义
|
||||
#define EPOS_OVERFLOW 1 // 坐标溢出
|
||||
#define EFB_MISMATCH 2 // 帧缓冲区与指定的屏幕大小不匹配
|
||||
#define EUNSUPPORTED 3 // 当前操作暂不被支持
|
||||
|
||||
#include "font.h"
|
||||
#include "glib.h"
|
||||
#include <lib/libUI/screen_manager.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
extern unsigned char font_ascii[256][16]; //导出ascii字体的bitmap（8*16大小） ps:位于font.h中
|
||||
|
||||
|
||||
/**
|
||||
* @brief 将字符串按照fmt和args中的内容进行格式化，然后保存到buf中
|
||||
*
|
||||
* @param buf 结果缓冲区
|
||||
* @param fmt 格式化字符串
|
||||
* @param args 内容
|
||||
* @return 最终字符串的长度
|
||||
*/
|
||||
int vsprintf(char *buf, const char *fmt, va_list args);
|
||||
|
||||
/**
|
||||
* @brief 将字符串按照fmt和args中的内容进行格式化，截取字符串前buf_size-1，保存到buf中
|
||||
*
|
||||
* @param buf 结果缓冲区，大小为buf_size
|
||||
* @param fmt 格式化字符串
|
||||
* @param buf_size 缓冲区长度
|
||||
* @param args 内容
|
||||
* @return 最终字符串的长度
|
||||
*/
|
||||
int vsnprintf(char *buf, const char *fmt, int buf_size, va_list args);
|
||||
|
||||
/**
|
||||
* @brief 格式化打印字符串
|
||||
*
|
||||
* @param FRcolor 前景色
|
||||
* @param BKcolor 背景色
|
||||
* @param ... 格式化字符串
|
||||
*/
|
||||
|
||||
#define printk(...) printk_color(WHITE, BLACK, __VA_ARGS__)
|
||||
|
||||
int printk_color(unsigned int FRcolor, unsigned int BKcolor, const char *fmt, ...);
|
||||
|
||||
/**
|
||||
* @brief 格式化字符串并输出到buf
|
||||
*
|
||||
* @param buf 输出缓冲区
|
||||
* @param fmt 格式
|
||||
* @param ... 参数
|
||||
* @return int 字符串长度
|
||||
*/
|
||||
int sprintk(char *buf, const char *fmt, ...);
|
||||
#pragma GCC pop_options
|
||||
47
kernel/src/common/semaphore.h
Normal file
47
kernel/src/common/semaphore.h
Normal file
@ -0,0 +1,47 @@
|
||||
/**
|
||||
* @file semaphore.h
|
||||
* @author fslngjin (lonjin@RinGoTek.cn)
|
||||
* @brief 信号量
|
||||
* @version 0.1
|
||||
* @date 2022-04-12
|
||||
*
|
||||
* @copyright Copyright (c) 2022
|
||||
*
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
#include <common/atomic.h>
|
||||
|
||||
#include <common/wait_queue.h>
|
||||
|
||||
/**
|
||||
* @brief 信号量的结构体
|
||||
*
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
atomic_t counter;
|
||||
wait_queue_node_t wait_queue;
|
||||
} semaphore_t;
|
||||
|
||||
|
||||
/**
|
||||
* @brief 初始化信号量
|
||||
*
|
||||
* @param sema 信号量对象
|
||||
* @param count 信号量的初始值
|
||||
*/
|
||||
static __always_inline void semaphore_init(semaphore_t *sema, ul count)
|
||||
{
|
||||
atomic_set(&sema->counter, count);
|
||||
wait_queue_init(&sema->wait_queue, NULL);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 信号量down
|
||||
*
|
||||
* @param sema
|
||||
*/
|
||||
void semaphore_down(semaphore_t *sema);
|
||||
|
||||
void semaphore_up(semaphore_t *sema);
|
||||
184
kernel/src/common/spinlock.h
Normal file
184
kernel/src/common/spinlock.h
Normal file
@ -0,0 +1,184 @@
|
||||
/**
|
||||
* @file spinlock.h
|
||||
* @author fslongjin (longjin@RinGoTek.cn)
|
||||
* @brief 自旋锁
|
||||
* @version 0.1
|
||||
* @date 2022-04-07
|
||||
*
|
||||
* @copyright Copyright (c) 2022
|
||||
*
|
||||
*/
|
||||
#pragma once
|
||||
#include <common/glib.h>
|
||||
#include <process/preempt.h>
|
||||
#include <debug/bug.h>
|
||||
|
||||
/**
|
||||
* @brief 定义自旋锁结构体
|
||||
*
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
int8_t lock; // 1:unlocked 0:locked
|
||||
} spinlock_t;
|
||||
|
||||
/**
|
||||
* @brief 自旋锁加锁
|
||||
*
|
||||
* @param lock
|
||||
*/
|
||||
void spin_lock(spinlock_t *lock)
|
||||
{
|
||||
__asm__ __volatile__("1: \n\t"
|
||||
"lock decb %0 \n\t" // 尝试-1
|
||||
"jns 3f \n\t" // 加锁成功，跳转到步骤3
|
||||
"2: \n\t" // 加锁失败，稍后再试
|
||||
"pause \n\t"
|
||||
"cmpb $0, %0 \n\t"
|
||||
"jle 2b \n\t" // 若锁被占用，则继续重试
|
||||
"jmp 1b \n\t" // 尝试加锁
|
||||
"3:"
|
||||
: "=m"(lock->lock)::"memory");
|
||||
preempt_disable();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 自旋锁解锁
|
||||
*
|
||||
* @param lock
|
||||
*/
|
||||
void spin_unlock(spinlock_t *lock)
|
||||
{
|
||||
preempt_enable();
|
||||
__asm__ __volatile__("movb $1, %0 \n\t"
|
||||
: "=m"(lock->lock)::"memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 初始化自旋锁
|
||||
*
|
||||
* @param lock
|
||||
*/
|
||||
void spin_init(spinlock_t *lock)
|
||||
{
|
||||
barrier();
|
||||
lock->lock = 1;
|
||||
barrier();
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 自旋锁加锁（不改变自旋锁持有计数）
|
||||
*
|
||||
* @warning 慎用此函数，除非你有十足的把握不会产生自旋锁计数错误
|
||||
*/
|
||||
void spin_lock_no_preempt(spinlock_t *lock)
|
||||
{
|
||||
__asm__ __volatile__("1: \n\t"
|
||||
"lock decb %0 \n\t" // 尝试-1
|
||||
"jns 3f \n\t" // 加锁成功，跳转到步骤3
|
||||
"2: \n\t" // 加锁失败，稍后再试
|
||||
"pause \n\t"
|
||||
"cmpb $0, %0 \n\t"
|
||||
"jle 2b \n\t" // 若锁被占用，则继续重试
|
||||
"jmp 1b \n\t" // 尝试加锁
|
||||
"3:"
|
||||
: "=m"(lock->lock)::"memory");
|
||||
}
|
||||
/**
|
||||
* @brief 自旋锁解锁（不改变自旋锁持有计数）
|
||||
*
|
||||
* @warning 慎用此函数，除非你有十足的把握不会产生自旋锁计数错误
|
||||
*/
|
||||
void spin_unlock_no_preempt(spinlock_t *lock)
|
||||
{
|
||||
__asm__ __volatile__("movb $1, %0 \n\t"
|
||||
: "=m"(lock->lock)::"memory");
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 尝试加锁
|
||||
*
|
||||
* @param lock
|
||||
* @return long 锁变量的值（1为成功加锁，0为加锁失败）
|
||||
*/
|
||||
long spin_trylock(spinlock_t *lock)
|
||||
{
|
||||
uint64_t tmp_val = 0;
|
||||
preempt_disable();
|
||||
// 交换tmp_val和lock的值，若tmp_val==1则证明加锁成功
|
||||
asm volatile("lock xchg %%bx, %1 \n\t" // 确保只有1个进程能得到锁
|
||||
: "=q"(tmp_val), "=m"(lock->lock)
|
||||
: "b"(0)
|
||||
: "memory");
|
||||
if (!tmp_val)
|
||||
preempt_enable();
|
||||
return tmp_val;
|
||||
}
|
||||
|
||||
// 保存当前rflags的值到变量x内并关闭中断
|
||||
#define local_irq_save(x) __asm__ __volatile__("pushfq ; popq %0 ; cli" \
|
||||
: "=g"(x)::"memory")
|
||||
// 恢复先前保存的rflags的值x
|
||||
#define local_irq_restore(x) __asm__ __volatile__("pushq %0 ; popfq" ::"g"(x) \
|
||||
: "memory")
|
||||
#define local_irq_disable() cli();
|
||||
#define local_irq_enable() sti();
|
||||
|
||||
/**
|
||||
* @brief 保存中断状态，关闭中断，并自旋锁加锁
|
||||
*
|
||||
*/
|
||||
#define spin_lock_irqsave(lock, flags) \
|
||||
do \
|
||||
{ \
|
||||
local_irq_save(flags); \
|
||||
spin_lock(lock); \
|
||||
} while (0)
|
||||
|
||||
/**
|
||||
* @brief 恢复rflags以及中断状态并解锁自旋锁
|
||||
*
|
||||
*/
|
||||
#define spin_unlock_irqrestore(lock, flags) \
|
||||
do \
|
||||
{ \
|
||||
spin_unlock(lock); \
|
||||
local_irq_restore(flags); \
|
||||
} while (0)
|
||||
|
||||
/**
|
||||
* @brief 关闭中断并加锁
|
||||
*
|
||||
*/
|
||||
#define spin_lock_irq(lock) \
|
||||
do \
|
||||
{ \
|
||||
local_irq_disable(); \
|
||||
spin_lock(lock); \
|
||||
} while (0)
|
||||
|
||||
/**
|
||||
* @brief 解锁并开启中断
|
||||
*
|
||||
*/
|
||||
#define spin_unlock_irq(lock) \
|
||||
do \
|
||||
{ \
|
||||
spin_unlock(lock); \
|
||||
local_irq_enable(); \
|
||||
} while (0)
|
||||
|
||||
/**
|
||||
* @brief 判断自旋锁是否已经加锁
|
||||
*
|
||||
* @param lock 待判断的自旋锁
|
||||
* @return true 已经加锁
|
||||
* @return false 尚未加锁
|
||||
*/
|
||||
static inline bool spin_is_locked(const spinlock_t *lock)
|
||||
{
|
||||
int x = READ_ONCE(lock->lock);
|
||||
return (x == 0) ? true : false;
|
||||
}
|
||||
|
||||
#define assert_spin_locked(lock) BUG_ON(!spin_is_locked(lock))
|
||||
7
kernel/src/common/stddef.h
Normal file
7
kernel/src/common/stddef.h
Normal file
@ -0,0 +1,7 @@
|
||||
#pragma once
|
||||
|
||||
#include "./sys/types.h"
|
||||
|
||||
#define NULL 0
|
||||
|
||||
typedef __PTRDIFF_TYPE__ ptrdiff_t; // Signed integer type of the result of subtracting two pointers.
|
||||
13
kernel/src/common/stdio.h
Normal file
13
kernel/src/common/stdio.h
Normal file
@ -0,0 +1,13 @@
|
||||
#pragma once
|
||||
#include <stdarg.h>
|
||||
#include <common/printk.h>
|
||||
|
||||
#define SEEK_SET 0 /* Seek relative to start-of-file */
|
||||
#define SEEK_CUR 1 /* Seek relative to current position */
|
||||
#define SEEK_END 2 /* Seek relative to end-of-file */
|
||||
|
||||
#define SEEK_MAX 3
|
||||
|
||||
extern int vsprintf(char *buf, const char *fmt, va_list args);
|
||||
|
||||
extern int sprintk(char *buf, const char *fmt, ...);
|
||||
9
kernel/src/common/stdlib.h
Normal file
9
kernel/src/common/stdlib.h
Normal file
@ -0,0 +1,9 @@
|
||||
#pragma once
|
||||
|
||||
/**
|
||||
* @brief 将长整型转换为字符串
|
||||
*
|
||||
* @param input 输入的数据
|
||||
* @return const char* 结果字符串
|
||||
*/
|
||||
const char* ltoa(long input);
|
||||
78
kernel/src/common/string.h
Normal file
78
kernel/src/common/string.h
Normal file
@ -0,0 +1,78 @@
|
||||
#pragma once
|
||||
#include "glib.h"
|
||||
/**
|
||||
* @brief 拷贝整个字符串
|
||||
*
|
||||
* @param dst 目标地址
|
||||
* @param src 源地址
|
||||
* @return char* 目标字符串
|
||||
*/
|
||||
char *strcpy(char *dst, const char *src);
|
||||
|
||||
//计算字符串的长度（经过测试，该版本比采用repne/scasb汇编的运行速度快16.8%左右）
|
||||
static inline int strlen(const char *s)
|
||||
{
|
||||
if (s == NULL)
|
||||
return 0;
|
||||
register int __res = 0;
|
||||
while (s[__res] != '\0')
|
||||
{
|
||||
++__res;
|
||||
}
|
||||
return __res;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief 测量字符串的长度
|
||||
*
|
||||
* @param src 字符串
|
||||
* @param maxlen 最大长度
|
||||
* @return long
|
||||
*/
|
||||
long strnlen(const char *src, unsigned long maxlen);
|
||||
|
||||
/*
|
||||
比较字符串 FirstPart and SecondPart
|
||||
FirstPart = SecondPart => 0
|
||||
FirstPart > SecondPart => 1
|
||||
FirstPart < SecondPart => -1
|
||||
*/
|
||||
|
||||
int strcmp(const char *FirstPart, const char *SecondPart);
|
||||
|
||||
char *strncpy(char *dst, const char *src, long count);
|
||||
|
||||
long strncpy_from_user(char *dst, const char *src, unsigned long size);
|
||||
|
||||
/**
|
||||
* @brief 测量来自用户空间的字符串的长度，会检验地址空间是否属于用户空间
|
||||
* @param src
|
||||
* @param maxlen
|
||||
* @return long
|
||||
*/
|
||||
long strnlen_user(const char *src, unsigned long maxlen);
|
||||
|
||||
/**
|
||||
* @brief 逐字节比较指定内存区域的值，并返回s1、s2的第一个不相等的字节i处的差值（s1[i]-s2[i])。
|
||||
* 若两块内存区域的内容相同，则返回0
|
||||
*
|
||||
* @param s1 内存区域1
|
||||
* @param s2 内存区域2
|
||||
* @param len 要比较的内存区域长度
|
||||
* @return int s1、s2的第一个不相等的字节i处的差值（s1[i]-s2[i])。若两块内存区域的内容相同，则返回0
|
||||
*/
|
||||
static inline int memcmp(const void *s1, const void *s2, size_t len)
|
||||
{
|
||||
int diff;
|
||||
|
||||
asm("cld \n\t" // 复位DF，确保s1、s2指针是自增的
|
||||
"repz; cmpsb\n\t" CC_SET(nz)
|
||||
: CC_OUT(nz)(diff), "+D"(s1), "+S"(s2)
|
||||
: "c"(len)
|
||||
: "memory");
|
||||
|
||||
if (diff)
|
||||
diff = *(const unsigned char *)(s1 - 1) - *(const unsigned char *)(s2 - 1);
|
||||
|
||||
return diff;
|
||||
}
|
||||
97
kernel/src/common/sys/types.h
Normal file
97
kernel/src/common/sys/types.h
Normal file
@ -0,0 +1,97 @@
|
||||
#pragma once
|
||||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
typedef unsigned char u_char;
|
||||
typedef unsigned short u_short;
|
||||
typedef unsigned int u_int;
|
||||
typedef unsigned long u_long;
|
||||
|
||||
typedef uint32_t uid_t;
|
||||
typedef uint32_t gid_t;
|
||||
typedef long long ssize_t;
|
||||
|
||||
typedef int __pid_t;
|
||||
#define pid_t uint64_t
|
||||
typedef __SIZE_TYPE__ size_t;
|
||||
|
||||
typedef char *caddr_t;
|
||||
|
||||
typedef int id_t;
|
||||
|
||||
typedef uint64_t ino_t;
|
||||
typedef int64_t off_t;
|
||||
|
||||
typedef uint32_t blkcnt_t;
|
||||
typedef uint32_t blksize_t;
|
||||
typedef uint32_t dev_t;
|
||||
typedef uint16_t mode_t;
|
||||
typedef uint32_t nlink_t;
|
||||
|
||||
typedef int64_t time_t;
|
||||
typedef uint32_t useconds_t;
|
||||
typedef int32_t suseconds_t;
|
||||
typedef uint32_t clock_t;
|
||||
|
||||
typedef uint64_t fsblkcnt_t;
|
||||
typedef uint64_t fsfilcnt_t;
|
||||
|
||||
typedef uint64_t sector_t;
|
||||
|
||||
#define __socklen_t_defined
|
||||
#define __socklen_t uint32_t
|
||||
typedef __socklen_t socklen_t;
|
||||
|
||||
#define pgoff_t unsigned long
|
||||
|
||||
struct utimbuf
|
||||
{
|
||||
time_t actime;
|
||||
time_t modtime;
|
||||
};
|
||||
|
||||
typedef int pthread_t;
|
||||
typedef int pthread_key_t;
|
||||
typedef uint32_t pthread_once_t;
|
||||
|
||||
typedef struct __pthread_mutex_t
|
||||
{
|
||||
uint32_t lock;
|
||||
pthread_t owner;
|
||||
int level;
|
||||
int type;
|
||||
} pthread_mutex_t;
|
||||
|
||||
typedef void *pthread_attr_t;
|
||||
typedef struct __pthread_mutexattr_t
|
||||
{
|
||||
int type;
|
||||
} pthread_mutexattr_t;
|
||||
|
||||
typedef struct __pthread_cond_t
|
||||
{
|
||||
pthread_mutex_t *mutex;
|
||||
uint32_t value;
|
||||
int clockid; // clockid_t
|
||||
} pthread_cond_t;
|
||||
|
||||
typedef uint64_t pthread_rwlock_t;
|
||||
typedef void *pthread_rwlockattr_t;
|
||||
typedef struct __pthread_spinlock_t
|
||||
{
|
||||
int m_lock;
|
||||
} pthread_spinlock_t;
|
||||
typedef struct __pthread_condattr_t
|
||||
{
|
||||
int clockid; // clockid_t
|
||||
} pthread_condattr_t;
|
||||
|
||||
typedef uint64_t gfp_t;
|
||||
|
||||
// 定义8字节对齐变量属性
|
||||
#ifndef __aligned_u64
|
||||
#define __aligned_u64 uint64_t __attribute__((aligned(8)))
|
||||
#endif
|
||||
|
||||
#define aligned_u64 __aligned_u64
|
||||
12
kernel/src/common/sys/wait.h
Normal file
12
kernel/src/common/sys/wait.h
Normal file
@ -0,0 +1,12 @@
|
||||
#pragma once
|
||||
#include "types.h"
|
||||
|
||||
/**
|
||||
* @brief 等待指定pid的子进程退出
|
||||
*
|
||||
* @param pid 子进程的pid
|
||||
* @param stat_loc 返回的子进程结束状态
|
||||
* @param options 额外的控制选项
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t waitpid(pid_t pid, int *stat_loc, int options);
|
||||
53
kernel/src/common/time.h
Normal file
53
kernel/src/common/time.h
Normal file
@ -0,0 +1,53 @@
|
||||
#pragma once
|
||||
|
||||
#include "stddef.h"
|
||||
|
||||
// 操作系统定义时间以ns为单位
|
||||
#define CLOCKS_PER_SEC 1000000
|
||||
|
||||
struct tm
|
||||
{
|
||||
int tm_sec; /* Seconds. [0-60] (1 leap second) */
|
||||
int tm_min; /* Minutes. [0-59] */
|
||||
int tm_hour; /* Hours. [0-23] */
|
||||
int tm_mday; /* Day. [1-31] */
|
||||
int tm_mon; /* Month. [0-11] */
|
||||
int tm_year; /* Year - 1900. */
|
||||
int tm_wday; /* Day of week. [0-6] */
|
||||
int tm_yday; /* Days in year.[0-365] */
|
||||
int tm_isdst; /* DST. [-1/0/1]*/
|
||||
|
||||
long int __tm_gmtoff; /* Seconds east of UTC. */
|
||||
const char *__tm_zone; /* Timezone abbreviation. */
|
||||
};
|
||||
|
||||
|
||||
struct timespec
|
||||
{
|
||||
long int tv_sec; // 秒
|
||||
long long tv_nsec; // 纳秒
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 休眠指定时间
|
||||
*
|
||||
* @param rqtp 指定休眠的时间
|
||||
* @param rmtp 返回的剩余休眠时间
|
||||
* @return int
|
||||
*/
|
||||
extern int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
|
||||
|
||||
/**
|
||||
* @brief 睡眠指定时间
|
||||
*
|
||||
* @param usec 微秒
|
||||
* @return int
|
||||
*/
|
||||
extern int usleep(useconds_t usec);
|
||||
|
||||
/**
|
||||
* @brief 获取当前的CPU时间
|
||||
*
|
||||
* @return uint64_t timer_jiffies
|
||||
*/
|
||||
extern uint64_t clock();
|
||||
36
kernel/src/common/unistd.h
Normal file
36
kernel/src/common/unistd.h
Normal file
@ -0,0 +1,36 @@
|
||||
/**
|
||||
* @file unistd.h
|
||||
* @author fslongjin (longjin@RinGoTek.cn)
|
||||
* @brief
|
||||
* @version 0.1
|
||||
* @date 2022-04-22
|
||||
*
|
||||
* @copyright Copyright (c) 2022
|
||||
*
|
||||
*/
|
||||
#pragma once
|
||||
|
||||
#include <syscall/syscall.h>
|
||||
#include <syscall/syscall_num.h>
|
||||
|
||||
/**
|
||||
* @brief fork当前进程
|
||||
*
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t fork(void);
|
||||
|
||||
/**
|
||||
* @brief vfork当前进程
|
||||
*
|
||||
* @return pid_t
|
||||
*/
|
||||
pid_t vfork(void);
|
||||
|
||||
/**
|
||||
* @brief 交换n字节
|
||||
* @param src 源地址
|
||||
* @param dest 目的地址
|
||||
* @param nbytes 交换字节数
|
||||
*/
|
||||
void swab(void *restrict src, void *restrict dest, ssize_t nbytes);
|
||||
7
kernel/src/common/user_namespace.h
Normal file
7
kernel/src/common/user_namespace.h
Normal file
@ -0,0 +1,7 @@
|
||||
#pragma once
|
||||
|
||||
// todo: 引入用户命名空间
|
||||
struct user_namespace
|
||||
{
|
||||
|
||||
};
|
||||
49
kernel/src/common/wait_queue.h
Normal file
49
kernel/src/common/wait_queue.h
Normal file
@ -0,0 +1,49 @@
|
||||
#pragma once
|
||||
#include <common/glib.h>
|
||||
|
||||
/**
|
||||
* @brief 信号量的等待队列
|
||||
*
|
||||
*/
|
||||
typedef struct
|
||||
{
|
||||
struct List wait_list;
|
||||
struct process_control_block *pcb;
|
||||
} wait_queue_node_t;
|
||||
|
||||
/**
|
||||
* @brief 初始化等待队列
|
||||
*
|
||||
* @param wait_queue 等待队列
|
||||
* @param pcb pcb
|
||||
*/
|
||||
void wait_queue_init(wait_queue_node_t *wait_queue, struct process_control_block *pcb);
|
||||
|
||||
/**
|
||||
* @brief 在等待队列上进行等待
|
||||
*
|
||||
* @param wait_queue_head 队列头指针
|
||||
*/
|
||||
void wait_queue_sleep_on(wait_queue_node_t *wait_queue_head);
|
||||
|
||||
/**
|
||||
* @brief 在等待队列上进行等待,同时释放自旋锁
|
||||
*
|
||||
* @param wait_queue_head 队列头指针
|
||||
*/
|
||||
void wait_queue_sleep_on_unlock(wait_queue_node_t *wait_queue_head,
|
||||
void *lock);
|
||||
/**
|
||||
* @brief 在等待队列上进行等待(允许中断)
|
||||
*
|
||||
* @param wait_queue_head 队列头指针
|
||||
*/
|
||||
void wait_queue_sleep_on_interriptible(wait_queue_node_t *wait_queue_head);
|
||||
|
||||
/**
|
||||
* @brief 唤醒在等待队列的头部的进程
|
||||
*
|
||||
* @param wait_queue_head 队列头
|
||||
* @param state 要唤醒的进程的状态
|
||||
*/
|
||||
void wait_queue_wakeup(wait_queue_node_t *wait_queue_head, int64_t state);
|
||||
68
kernel/src/common/wait_queue_head.h
Normal file
68
kernel/src/common/wait_queue_head.h
Normal file
@ -0,0 +1,68 @@
|
||||
#include <common/spinlock.h>
|
||||
#include <common/wait_queue.h>
|
||||
|
||||
typedef struct
|
||||
{
|
||||
struct List wait_list;
|
||||
spinlock_t lock; // 队列需要有一个自旋锁,虽然目前内部并没有使用,但是以后可能会用.[在completion内部使用]
|
||||
} wait_queue_head_t;
|
||||
|
||||
#define DECLARE_WAIT_ON_STACK(name, pcb) \
|
||||
wait_queue_node_t name = {0}; \
|
||||
wait_queue_init(&(name), pcb);
|
||||
|
||||
#define DECLARE_WAIT_ON_STACK_SELF(name) \
|
||||
wait_queue_node_t name = {0}; \
|
||||
wait_queue_init(&(name), current_pcb);
|
||||
|
||||
#define DECLARE_WAIT_ALLOC(name, pcb) \
|
||||
wait_queue_node_t *wait = (wait_queue_node_t *)kzalloc(sizeof(wait_queue_node_t), 0); \
|
||||
wait_queue_init(&(name), pcb);
|
||||
|
||||
#define DECLARE_WAIT_ALLOC_SELF(name) \
|
||||
wait_queue_node_t *wait = (wait_queue_node_t *)kzalloc(sizeof(wait_queue_node_t), 0); \
|
||||
wait_queue_init(&(name), current_pcb);
|
||||
|
||||
#define DECLARE_WAIT_QUEUE_HEAD(name) \
|
||||
struct wait_queue_head_t name = {0}; \
|
||||
wait_queue_head_init(&name);
|
||||
|
||||
/**
|
||||
* @brief 初始化wait_queue队列头
|
||||
*
|
||||
* @param wait_queue
|
||||
*/
|
||||
void wait_queue_head_init(wait_queue_head_t *wait_queue);
|
||||
|
||||
/**
|
||||
* @brief 在等待队列上进行等待, 但是你需要确保wait已经被init, 同时wakeup只能使用wake_up_on_stack函数。
|
||||
*
|
||||
* @param q 队列头指针
|
||||
* @param wait wait节点
|
||||
*/
|
||||
void wait_queue_sleep_with_node(wait_queue_head_t *q, wait_queue_node_t *wait);
|
||||
|
||||
/**
|
||||
* @brief 在等待队列上进行等待,同时释放自旋锁, 但是你需要确保wait已经被init, 同时wakeup只能使用wake_up_on_stack函数。
|
||||
*
|
||||
* @param q 队列头指针
|
||||
* @param wait wait节点
|
||||
* @param lock
|
||||
*/
|
||||
void wait_queue_sleep_with_node_unlock(wait_queue_head_t *q, wait_queue_node_t *wait, void *lock);
|
||||
|
||||
/**
|
||||
* @brief 在等待队列上进行等待(允许中断), 但是你需要确保wait已经被init, 同时wakeup只能使用wake_up_on_stack函数。
|
||||
*
|
||||
* @param wait_queue_head 队列头指针
|
||||
* @param wait wait节点
|
||||
*/
|
||||
void wait_queue_sleep_with_node_interriptible(wait_queue_head_t *q, wait_queue_node_t *wait);
|
||||
|
||||
/**
|
||||
* @brief 唤醒在等待队列的头部的进程, 但是不会free掉这个节点的空间(默认这个节点在栈上创建)
|
||||
*
|
||||
* @param wait_queue_head_t q: 队列头
|
||||
* @param state 要唤醒的进程的状态
|
||||
*/
|
||||
void wait_queue_wakeup_on_stack(wait_queue_head_t *q, int64_t state);
|
||||
Reference in New Issue
Block a user