From: AceVest <zhaoyanbai@126.com>
Date: Sun, 12 Oct 2014 01:01:27 +0000 (+0800)
Subject: delete old code
X-Git-Url: http://zhaoyanbai.com/repos/?a=commitdiff_plain;h=270e1e3aad85b255e8507f9c204083ddd1366d21;p=kernel.git

delete old code
---

diff --git a/bin/shell.c b/bin/shell.c
index cd4d509..0f2a410 100644
--- a/bin/shell.c
+++ b/bin/shell.c
@@ -27,6 +27,10 @@ int main()
         char cmd[256];
         read(0, cmd, 256);
 
+        int len = strlen(cmd);
+        if(len > 0)
+            cmd[len-1] = 0;
+
         int pid = fork();
         if(pid > 0)
         {
diff --git a/drivers/console.c b/drivers/console.c
index f2f7ea3..2d78b20 100644
--- a/drivers/console.c
+++ b/drivers/console.c
@@ -132,8 +132,7 @@ int cnsl_read(char *buf, size_t count)
 
             if(r)
             {
-                if(ch != '\n')
-                    buf[cnt++] = ch;
+                buf[cnt++] = ch;
 
                 task->state = TASK_RUNNING;
                 del_wait_queue(&rdwq, &wait);
diff --git a/fs/bak.ext2.c b/fs/bak.ext2.c
deleted file mode 100644
index 11f7641..0000000
--- a/fs/bak.ext2.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- *--------------------------------------------------------------------------
- *   File Name: ext2.c
- * 
- *      Author: Zhao Yanbai [zhaoyanbai@126.com]
- *              Sun Feb 14 15:52:01 2010
- * 
- * Description: none
- * 
- *--------------------------------------------------------------------------
- */
-
-#if 0
-#include <fs.h>
-#include <system.h>
-#include <string.h>
-#include <stat.h>
-
-unsigned int ext2_start_sect;
-Inode    ext2_root_inode;
-
-void hd_read(dev_t dev, u64 sect_nr, void *buf, u32 count) { /*TODO*/ }
-void    ext2_read_block(int block_id, char *buf);
-static void ext2_print_group_descriptor(pGroupDesc p);
-static void ext2_print_inode(pInode p);
-int ext2_search_file(const char *file, const pInode in, pInode out);
-//char *ext2_loadfile(const char *path, size_t *file_size);
-
-/* ext2 super block */
-SuperBlock ext2_sb
-    __attribute__((__aligned__(PAGE_SIZE)));
-Inode    inode_table[NR_INODES]
-    __attribute__((__aligned__(PAGE_SIZE))) = {{0,},};
-/* 
- * ext2 group descriptor table
- * 其大小为一个EXT2_BLOCK_SIZE
- */
-static pGroupDesc gdesc;
-
-void    setup_ext2()
-{
-    int i;
-
-    hd_read(ROOT_DEV, ext2_start_sect+2, EXT2_SB, sizeof(SuperBlock));
-    printk("EXT2 SB:%x\n", sizeof(SuperBlock));
-    printk("inodes count: %d\n", EXT2_SB->s_inodes_count);
-    printk("blocks count: %d\n", EXT2_SB->s_blocks_count);
-    printk("s_magic: %x\n", EXT2_SB->s_magic);
-    printk("LOG BLOCK SIZE:%x\n", EXT2_SB->s_log_block_size);
-    printk("Block Size:%d %x\n", EXT2_BLOCK_SIZE, EXT2_BLOCK_SIZE);
-
-
-    if(EXT2_SB->s_magic != 0xEF53)
-        panic("Only Support Ext2 File System...");
-
-    /* 分配group descriptor table 的内存 */
-    gdesc = (pGroupDesc) kmalloc_old(EXT2_BLOCK_SIZE);
-    if(gdesc == NULL)
-        panic("out of memory for ext2 group descritpor table");
-    /* 初始化ext2 group descriptor table */
-    ext2_read_block(EXT2_FIRST_BLOCK_ID+1, (char *)gdesc);
-#if 0
-    printk("-------%d %d %d",
-        EXT2_BLOCK_SIZE, EXT2_INODE_SIZE, EXT2_INODES_PER_BLOCK);
-    for(i=0; i<12; i++)
-        ext2_print_group_descriptor(gdesc+i);
-#endif
-
-    ext2_read_inode(2, &ext2_root_inode);
-#if 1
-    ext2_print_inode(&ext2_root_inode);
-#endif
-
-#if 0
-    Inode    boot_ino, grub_ino, grubconf_ino;
-    int    boot_n, grub_n, grubconf_n;
-    boot_n = ext2_search_file("boot", &ext2_root_inode, &boot_ino);
-    printk("boot_n:%d size:%d\n", boot_n, boot_ino.i_size);
-    grub_n = ext2_search_file("grub", &boot_ino, &grub_ino);
-    printk("grub_n:%d size:%d\n", grub_n, grub_ino.i_size);
-    grubconf_n = ext2_search_file("grub.conf",
-                    &grub_ino, &grubconf_ino);
-    printk("grubconf_n:%d size:%d\n", grubconf_n, grubconf_ino.i_size);
-#endif
-#if 0
-    size_t filesz;
-    char *buf=ext2_loadfile("/boot/grub/grub.conf", &filesz);
-
-    for(i=0; i<filesz; i++)
-        printk("%c", buf[i]);
-#endif
-#if 0
-    unsigned char *p = (char *)kmalloc_old(EXT2_BLOCK_SIZE);
-    ext2_read_block(0, p);
-
-    for(i=0; i<512; i++)
-        printk("%02x ", p[i]);
-#endif
-#if 0
-    int dly = 0xF000000;
-    while(dly--);
-#endif
-}
-
-void    ext2_read_block(int block_id, char *buf)
-{
-    u64 sect = EXT2_SECT;
-    sect += block_id*EXT2_SECT_PER_BLOCK;
-
-    //printk("block id: %d sect:%d\n", block_id, sect);
-
-    hd_read(ROOT_DEV, sect, buf, EXT2_BLOCK_SIZE);
-}
-
-
-/*
- * 写这版ext2_read_inode的时候我想起了2008.12.16在0.2.1中写的
- * 那个 GetInode. 这两个函数完成的是同样的功能.但是很明显
- * 之前的那个版本写得那是相当的滑稽幼稚.甚至还有大大的BUG.
- * 但是正是这些点滴见证着我的内核的成长.
- */
-int    ext2_read_inode(unsigned int n, pInode ino)
-{
-    assert(1<=n && n <= EXT2_INODES_COUNT);
-    if(n == EXT2_BAD_INO) return 0;
-
-    unsigned int    gnr;    /* inode 所在的group的号 */
-    unsigned int    gidx;    /* inode 所在的group的偏移 */
-    unsigned int    inotbl;    /* inode table 的 block id */
-
-
-    gnr    = (n-1) / EXT2_INODES_PER_GROUP;
-    gidx    = (n-1) % EXT2_INODES_PER_GROUP;
-
-    inotbl    = (gdesc+gnr)->bg_inode_table;
-
-    // 跳过完整的BLOCK
-    inotbl += (gidx/EXT2_INODES_PER_BLOCK);
-    gidx   %= EXT2_INODES_PER_BLOCK;
-
-
-    char *buf = kmalloc_old(EXT2_BLOCK_SIZE);
-    if(buf == NULL)
-        panic("faild read inode. out of memory");
-    ext2_read_block(inotbl, buf);
-
-    memcpy((void *)ino,(void*)(((pInode)buf)+gidx), EXT2_INODE_SIZE);
-
-    kfree_old(buf);
-
-    return n;
-}
-int ext2_read_file(const pInode ino, void *buf, size_t count)
-{
-    int i, blks;
-    void *p;
-
-    blks = (ino->i_size+EXT2_BLOCK_SIZE-1)/EXT2_BLOCK_SIZE;
-    assert(blks>0);
-
-    if(blks > EXT2_NDIR_BLOCKS)
-        panic("file too large to read");
-
-    p = kmalloc_old(blks*EXT2_BLOCK_SIZE);
-
-    if(p == NULL)
-        panic("out of memory when search inode in directory");
-
-    for(i=0; i<blks; i++)
-    {
-        ext2_read_block(ino->i_block[i],
-            (char *)(i*EXT2_BLOCK_SIZE + (unsigned long)p));
-    }
-
-    memcpy(buf, p, count);
-
-    kfree_old(p);
-
-    return count;
-}
-#if 0
-char *load_inode_content(const pInode ino)
-{
-    int i, blks;
-    char *buf;
-
-    blks = (ino->i_size+EXT2_BLOCK_SIZE-1)/EXT2_BLOCK_SIZE;
-    assert(blks>0);
-    if(blks > EXT2_NDIR_BLOCKS)
-        panic("unsupport file large than 12KB");
-
-
-    buf = kmalloc_old(blks*EXT2_BLOCK_SIZE);
-    if(buf == NULL)
-        panic("out of memory when search inode in directory");
-    for(i=0; i<blks; i++)
-    {
-        ext2_read_block(ino->i_block[i], buf + i*EXT2_BLOCK_SIZE);
-    }
-
-    return buf;
-}
-#endif
-
-/*
- * 从in中查找file从out返回
- * int 型的函数返回值的意思是inode号
- * 失败则返回的是EXT2_BAD_INO
- */
-int ext2_search_file(const char *file, const pInode in, pInode out)
-{
-    assert(file != NULL);
-    assert(in != NULL);
-    assert(S_ISDIR(in->i_mode));
-
-    char *buf;
-#if 0
-    buf = load_inode_content(in);
-#else
-    buf = kmalloc_old(in->i_size);
-    ext2_read_file(in, buf, in->i_size);
-#endif
-
-    pDirEnt    ent = (pDirEnt)buf;
-    int len = strlen(file);
-    int inode_n = EXT2_BAD_INO;
-    while(ent < (pDirEnt)(buf + in->i_size))
-    {
-        if(ent->name_len == len)
-        {
-            if(strncmp(file, ent->name, ent->name_len) == 0)
-            {
-                inode_n = ent->inode;
-#if 0
-                printk("file: %s\n", ent->name);
-#endif
-                break;
-            }
-        }
-
-
-        ent = (pDirEnt)(ent->rec_len + (unsigned long)ent);
-    }
-    kfree_old(buf);
-
-    ext2_read_inode(inode_n, out);
-
-    return inode_n;
-}
-
-
-static int get_filename_from_path(const char *path, char *filename)
-{
-    int i = 0;
-
-    while(*path != '/' && *path != '\0')
-    {
-        filename[i++] = *path++;
-    }
-    filename[i] = 0;
-
-
-    return i; // file name len
-}
-
-
-int ext2_get_file_inode_nr(const char *path)
-{
-    assert(*path++ == '/');    /* 目前只支持从根目录开始的路径 */
-    Inode    ino = ext2_root_inode;
-    int    ino_nr, len;
-    char file[EXT2_NAME_LEN];
-
-    while((len=get_filename_from_path(path, file)) != 0)
-    {
-#if 0
-        printk("file: %s ", file);
-#endif
-        ino_nr = ext2_search_file(file, &ino, &ino);
-
-        path += len;
-
-        if(*path != 0)
-            path++;
-    }
-#if 0
-    printk("ino_nr:%d\n", ino_nr);
-#endif
-    return ino_nr;
-}
-
-#if 0
-/*
- * 需要自己释放内存
- */
-char *ext2_loadfile(const char *path, size_t *file_size)
-{
-    char *buf;
-    buf = load_inode_content(&inode);
-    *file_size = inode.i_size;
-
-    return buf;
-}
-#endif
-
-static void ext2_print_group_descriptor(pGroupDesc p)
-{
-    printk("block bitmap:%d inode bitmap:%d inode table:%d\n",
-        p->bg_block_bitmap,
-        p->bg_inode_bitmap,
-        p->bg_inode_table);
-}
-
-static void ext2_print_inode(pInode p)
-{
-    printk("i_mode:%04x i_size:%d i_blocks:%d\n",
-        p->i_mode, p->i_size, p->i_blocks);
-}
-#endif
diff --git a/include/system.h b/include/system.h
index adb24f6..c72fb0f 100644
--- a/include/system.h
+++ b/include/system.h
@@ -56,33 +56,6 @@
 void    *kmalloc(size_t size, gfp_t gfpflags);
 void    kfree(void *addr);
 
-void    *kmalloc_old(size_t size);
-void    kfree_old(void *p);
-
-static inline void *get_virt_pages(unsigned int n)
-{
-    assert(n>0);
-    size_t    size = n << PAGE_SHIFT;
-    return (void*) kmalloc_old(size);
-}
-static inline void free_virt_pages(void *p)
-{
-    kfree_old((void *)p);
-}
-static inline void *get_phys_pages(unsigned int n)
-{
-/*
-    assert(n>0);
-    size_t    size = n << PAGE_SHIFT;
-    return (void*) va2pa(kmalloc_old(size));
-*/
-    return (void *)va2pa(get_virt_pages(n));
-}
-static inline void free_phys_pages(void *p)
-{
-    free_virt_pages((void*)va2pa(p));
-}
-
 #define panic(msg, ...) do {                            \
     asm("cli;");                                        \
     printk("PANIC:"                                     \
@@ -107,7 +80,6 @@ char gdtr[6],idtr[6];
 
 #define ALIGN(x, a)    (((x)+(a)-1) & ~((a)-1))
 
-
 // 1 GB
 #define MAX_SUPT_PHYMM_SIZE    (1UL<<30)
 
@@ -131,33 +103,7 @@ enum GDTSelectorIndex
     INDEX_EMP8,
     INDEX_TSS,
 };
-#if 0
-// pushal push eax, ecx, edx, ebx, esp, ebp, esi, edi
-typedef struct pt_regs
-{
-    u32    edi;
-    u32    esi;
-    u32    ebp;
-    u32    ebx;
-    u32    edx;
-    u32    ecx;
-    u32    eax;
-    u16    ds, _ds;
-    u16    es, _es;
-    u16    fs, _fs;
-    u16    gs, _gs;
-    union
-    {
-        u32    irq;
-        u32    errcode;
-    };
-    u32    eip;
-    u16    cs, _cs;
-    u32    eflags;
-    u32    esp;
-    u16    ss, _ss;
-} __attribute__((packed)) pt_regs_t;
-#else
+
 typedef struct pt_regs
 {
     u32    ebx;
@@ -182,7 +128,6 @@ typedef struct pt_regs
     u32    esp;
     u16    ss, _ss;
 } __attribute__((packed)) pt_regs_t;
-#endif
 
 typedef unsigned long dev_t;
 
@@ -298,9 +243,6 @@ void system_delay();
 #define REBOOT_RESTART   0x00
 #define REBOOT_POWEROFF  0x01
 
-
-#define ROOT_DEV    system.root_dev
-
 #define KRNL_INIT_STACK_SIZE    4096
 
 #endif //_SYSTEM_H
diff --git a/mm/kmalloc.c b/mm/kmalloc.c
deleted file mode 100644
index b22ab1f..0000000
--- a/mm/kmalloc.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- *--------------------------------------------------------------------------
- *   File Name: kmalloc_old.c
- * 
- *      Author: Zhao Yanbai [zhaoyanbai@126.com]
- *              Sat Jan 30 12:15:51 2010
- * 
- * Description: 现在的版本实现得非常简单，简陋。不能分配大于32*4K的内存
- *         另外小于32*4K的都按32*4K分配
- *         以后再来重写这里吧
- *--------------------------------------------------------------------------
- */
-#include <page.h>
-#include <types.h>
-#include <assert.h>
-#include <system.h>
-
-static int get_order(size_t size)
-{
-    int i;
-    return i;
-}
-void    *kmalloc_old(size_t size)
-{
-    void    *p;
-    return p;
-}
-
-
-void    kfree_old(void *p)
-{
-
-}
diff --git a/scripts/grub.cfg b/scripts/grub.cfg
index 26f771f..08efd8b 100644
--- a/scripts/grub.cfg
+++ b/scripts/grub.cfg
@@ -8,5 +8,5 @@ insmod ext2
 root=(hd0,msdos1)
 
 menuentry 'Kernel' --class os {
-    multiboot /boot/Kernel root=hda0 delay=20000000
+    multiboot /boot/Kernel root=hda0 delay=2
 }