linux-0.01源码带注释说明.zip资源-CSDN文库

共89个文件

c：45个

h：31个

s：7个

linux

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linux-0.01源码带注释说明.zip （89个子文件）

linux-0.01源码带注释说明

linux-0.01

include

a.out.h 6KB

linux

hdreg.h 3KB

kernel.h 269B

mm.h 219B

config.h 1KB

sys.h 2KB

tty.h 2KB

fs.h 5KB

sched.h 6KB

head.h 304B

const.h 321B

unistd.h 6KB

ctype.h 1KB

fcntl.h 1KB

stdarg.h 780B

stddef.h 286B

termios.h 5KB

utime.h 225B

signal.h 2KB

asm

memory.h 507B

io.h 477B

system.h 2KB

segment.h 822B

time.h 734B

string.h 8KB

sys

stat.h 1KB

times.h 200B

utsname.h 234B

types.h 805B

wait.h 560B

errno.h 1KB

lib

execve.c 107B

close.c 69B

ctype.c 1KB

Makefile 992B

errno.c 11B

open.c 328B

setsid.c 65B

_exit.c 136B

string.c 114B

dup.c 67B

wait.c 192B

write.c 98B

page.s 448B

Makefile 770B

memory.c 7KB

tools

build.c 2KB

Makefile 2KB

init

main.c 4KB

boot

boot.s 8KB

head.s 5KB

read_write.c 3KB

bitmap.c 4KB

ioctl.c 935B

Makefile 5KB

fcntl.c 1KB

open.c 4KB

truncate.c 1KB

inode.c 6KB

file_table.c 56B

namei.c 14KB

buffer.c 6KB

char_dev.c 1KB

tty_ioctl.c 4KB

super.c 2KB

exec.c 7KB

stat.c 1KB

pipe.c 2KB

block_dev.c 2KB

file_dev.c 2KB

kernel

serial.c 1KB

traps.c 5KB

vsprintf.c 5KB

Makefile 4KB

keyboard.s 9KB

asm.s 3KB

hd.c 10KB

console.c 9KB

exit.c 3KB

printk.c 602B

panic.c 222B

fork.c 3KB

system_call.s 5KB

sched.c 5KB

sys.c 3KB

rs_io.s 3KB

mktime.c 1KB

tty_io.c 7KB

Linux0.01内核源代码及注释.pdf 1.74MB

Linux0.01源代码及注释

Bootsect.s..........................................................................................................................................4

Head.s..............................................................................................................................................12

Setup.s.............................................................................................................................................21

Bitmap.c..........................................................................................................................................29

Block_dev.c.....................................................................................................................................34

Buffer.c............................................................................................................................................37

Char_dev.c......................................................................................................................................51

Exec.c..............................................................................................................................................54

Fcntl.c..............................................................................................................................................68

File_dev.c........................................................................................................................................70

File_table.c......................................................................................................................................74

Inode.c.............................................................................................................................................74

Ioctl.c..............................................................................................................................................86

Namei.c...........................................................................................................................................88

Open.c...........................................................................................................................................117

Pipe.c.............................................................................................................................................125

Read_write.c.................................................................................................................................129

Stat.c..............................................................................................................................................133

Super.c...........................................................................................................................................135

Truncate.c......................................................................................................................................146

Include...........................................................................................................................................148

Asm...............................................................................................................................................148

io.h................................................................................................................................................148

Memory.h......................................................................................................................................149

Segment.h......................................................................................................................................150

System.h........................................................................................................................................153

Fs.h................................................................................................................................................155

Hdreg.h..........................................................................................................................................161

Head.h...........................................................................................................................................163

Kernel.h.........................................................................................................................................164

Mm.h.............................................................................................................................................165

Sched.h..........................................................................................................................................165

Sys.h..............................................................................................................................................174

Tty.h..............................................................................................................................................176

Config.h........................................................................................................................................178

Stat.h.............................................................................................................................................180

Times.h..........................................................................................................................................182

Types.h..........................................................................................................................................183

Utsname.h.....................................................................................................................................184

Wait.h............................................................................................................................................184

Out.h..............................................................................................................................................185

Const.h..........................................................................................................................................192

Stype.h..........................................................................................................................................193

Errno.h..........................................................................................................................................194

Fcntl.h...........................................................................................................................................196

Singnal.h.......................................................................................................................................198

Stdarg.h.........................................................................................................................................200

Stddef.h.........................................................................................................................................201

String.h..........................................................................................................................................202

Termios.h......................................................................................................................................213

Time.h...........................................................................................................................................221

Unistd.h.........................................................................................................................................222

Utime.h..........................................................................................................................................229

Main.c...........................................................................................................................................229

Blk.h..............................................................................................................................................237

Floppy.c.........................................................................................................................................241

Hd.c...............................................................................................................................................258

Ll_rw_blk.c...................................................................................................................................269

Ramdisk.c......................................................................................................................................275

Makefile........................................................................................................................................280

Console.c.......................................................................................................................................282

Keyboard.s....................................................................................................................................306

Rs_io.s...........................................................................................................................................322

Serial.c..........................................................................................................................................338

Tty_io.c.........................................................................................................................................340

Tty_ioctl.c.....................................................................................................................................354

Makefile........................................................................................................................................361

Math_emulate.c.............................................................................................................................364

Makefile........................................................................................................................................366

Asm.s............................................................................................................................................368

Exit.c.............................................................................................................................................373

Fork.c............................................................................................................................................379

Mktime.c.......................................................................................................................................384

Panic.c...........................................................................................................................................385

Printk.c..........................................................................................................................................386

Sched.c..........................................................................................................................................388

Signal.c..........................................................................................................................................402

Sys.c..............................................................................................................................................406

System_call.s................................................................................................................................414

Vsprintf.c......................................................................................................................................423

_exit.c............................................................................................................................................431

Close.c...........................................................................................................................................432

Ctype.c..........................................................................................................................................432

Dup.c.............................................................................................................................................433

Execve.c........................................................................................................................................434

Malloc.c........................................................................................................................................435

Open.c...........................................................................................................................................444

String.c..........................................................................................................................................445

Setsid.c..........................................................................................................................................445

Wait.c............................................................................................................................................446

Write.c...........................................................................................................................................446

Makefile........................................................................................................................................447

Memory.c......................................................................................................................................450

page.s............................................................................................................................................466

Makefile........................................................................................................................................467

Build.c...........................................................................................................................................469

Makefile(总）...............................................................................................................................475

Bootsect.s

! SYS_SIZE is the number of clicks (16 bytes) to be loaded.

! 0x3000 is 0x30000 bytes = 196kB, more than enough for current

! versions of linux ! SYS_SIZE 是要加载的节数（16 字节为1 节）。0x3000 共为

1 2 3 4 5 6

0x7c00

0x0000

0x90000

0x10000

0xA0000

system 模块

代码执行位置线路

0x90200

! 0x30000 字节=192 kB（上面Linus 估算错了），对于当前的版本空间已足够了。

SYSSIZE = 0x3000 ! 指编译连接后system 模块的大小。参见列表1.2 中第92 的说明。

! 这里给出了一个最大默认值。

! bootsect.s is loaded at 0x7c00 by the bios-startup routines, and moves

! iself out of the way to address 0x90000, and jumps there.

! It then loads 'setup' directly after itself (0x90200), and the system

! at 0x10000, using BIOS interrupts.

! NOTE! currently system is at most 8*65536 bytes long. This should be no

! problem, even in the future. I want to keep it simple. This 512 kB

! kernel size should be enough, especially as this doesn't contain the

! buffer cache as in minix

! The loader has been made as simple as possible, and continuos

! read errors will result in a unbreakable loop. Reboot by hand. It

! loads pretty fast by getting whole sectors at a time whenever possible.

! 以下是前面这些文字的翻译：

! bootsect.s 被bios-启动子程序加载至0x7c00 (31k)处，并将自己

! 移到了地址0x90000 (576k)处，并跳转至那里。

! 它然后使用BIOS 中断将'setup'直接加载到自己的后面(0x90200)(576.5k)，

! 并将system 加载到地址0x10000 处。

! 注意! 目前的内核系统最大长度限制为(8*65536)(512k)字节，即使是在

! 将来这也应该没有问题的。我想让它保持简单明了。这样512k 的最大内核长度应该

! 足够了，尤其是这里没有象minix 中一样包含缓冲区高速缓冲。

! 加载程序已经做的够简单了，所以持续的读出错将导致死循环。只能手工重启。

! 只要可能，通过一次取取所有的扇区，加载过程可以做的很快的。

.globl begtext, begdata, begbss, endtext, enddata, endbss ! 定义了6 个全局标识符；

.text ! 文本段；

begtext:

.data ! 数据段；

begdata:

.bss ! 堆栈段；

begbss:

.text ! 文本段；

SETUPLEN = 4 ! nr of setup-sectors

! setup 程序的扇区数(setup-sectors)值；

BOOTSEG = 0x07c0 ! original address of boot-sector

! bootsect 的原始地址（是段地址，以下同）；

INITSEG = 0x9000 ! we move boot here - out of the way

! 将bootsect 移到这里 -- 避开；

SETUPSEG = 0x9020 ! setup starts here

! setup 程序从这里开始；

SYSSEG = 0x1000 ! system loaded at 0x10000 (65536).

! system 模块加载到0x10000（64 kB）处；

ENDSEG = SYSSEG + SYSSIZE ! where to stop loading

! 停止加载的段地址；

! ROOT_DEV: 0x000 - same type of floppy as boot.

! 根文件系统设备使用与引导时同样的软驱设备；

! 0x301 - first partition on first drive etc

! 根文件系统设备在第一个硬盘的第一个分区上，等等；

ROOT_DEV = 0x306 ! 指定根文件系统设备是第2 个硬盘的第1 个分区。这是Linux 老式

的硬盘命名

! 方式,具体值的含义如下：

! 设备号=主设备号*256 + 次设备号（也即dev_no = (major<<8) + minor ）

! （主设备号：1-内存,2-磁盘,3-硬盘,4-ttyx,5-tty,6-并行口,7-非命名管道）

! 0x300 - /dev/hd0 - 代表整个第1 个硬盘；

! 0x301 - /dev/hd1 - 第1 个盘的第1 个分区；

! …

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