From: acevest <zhaoyanbai@126.com>
Date: Mon, 15 Nov 2021 04:28:03 +0000 (+0800)
Subject: 代码整理
X-Git-Url: http://zhaoyanbai.com/repos/Bv9ARM.ch12.html?a=commitdiff_plain;h=36a9ed031d66ea41c5bb44d3e6f3ea2333608510;p=kernel.git

代码整理
---

diff --git a/kernel/setup.c b/kernel/setup.c
index f951102..7c1991d 100644
--- a/kernel/setup.c
+++ b/kernel/setup.c
@@ -89,14 +89,12 @@ void setup_kernel() {
 
     extern tty_t monitor_tty;
     tty_switch(&monitor_tty);
-
-    return;
-
-    setup_fs();
 }
 
 // 在开中断的情况下继续初始化的内容
 void setup_under_irq() {
     void ide_init();
     ide_init();
+    return;
+    setup_fs();
 }
\ No newline at end of file
diff --git a/kernel/system.c b/kernel/system.c
index d42e98f..2cba453 100644
--- a/kernel/system.c
+++ b/kernel/system.c
@@ -184,3 +184,10 @@ int sysc_reboot(int mode) {
 
     return 0;
 }
+
+System system;
+TSS tss;
+Desc idt[NIDT] __attribute__((__aligned__(8)));
+Desc gdt[NGDT] __attribute__((__aligned__(8)));
+char gdtr[6] __attribute__((__aligned__(4)));
+char idtr[6] __attribute__((__aligned__(4)));
\ No newline at end of file
diff --git a/kernel/task_disk.c b/kernel/task_disk.c
new file mode 100644
index 0000000..6be1a2f
--- /dev/null
+++ b/kernel/task_disk.c
@@ -0,0 +1,16 @@
+/*
+ * ------------------------------------------------------------------------
+ *   File Name: task_disk.c
+ *      Author: Zhao Yanbai
+ *              2021-11-15 12:19:00 Monday CST
+ * Description: none
+ * ------------------------------------------------------------------------
+ */
+
+#include <sched.h>
+
+void disk_task_entry() {
+    while (1) {
+        schedule();
+    }
+}
\ No newline at end of file
diff --git a/kernel/task_init.c b/kernel/task_init.c
new file mode 100644
index 0000000..b46df5e
--- /dev/null
+++ b/kernel/task_init.c
@@ -0,0 +1,24 @@
+#include <fcntl.h>
+#include <io.h>
+#include <irq.h>
+#include <page.h>
+#include <processor.h>
+#include <sched.h>
+#include <stat.h>
+#include <stdio.h>
+#include <syscall.h>
+#include <system.h>
+#include <types.h>
+
+void init_task_entry() {
+    current->priority = 100;
+
+    // 继续内核未完成的初始化
+    // 这些初始化在开中断的情况下完成
+    void setup_under_irq();
+    setup_under_irq();
+
+    while (1) {
+        asm("hlt;");
+    }
+}
diff --git a/kernel/task_root.c b/kernel/task_root.c
new file mode 100644
index 0000000..8a97414
--- /dev/null
+++ b/kernel/task_root.c
@@ -0,0 +1,70 @@
+/*
+ * ------------------------------------------------------------------------
+ *   File Name: task_root.c
+ *      Author: Zhao Yanbai
+ *              2021-11-15 12:20:22 Monday CST
+ * Description: none
+ * ------------------------------------------------------------------------
+ */
+
+#include <fcntl.h>
+#include <io.h>
+#include <irq.h>
+#include <page.h>
+#include <processor.h>
+#include <sched.h>
+#include <stat.h>
+#include <stdio.h>
+#include <syscall.h>
+#include <system.h>
+#include <types.h>
+
+void disk_task_entry();
+void init_task_entry();
+void user_task_entry();
+int do_fork(pt_regs_t *regs, unsigned long flags);
+
+void kernel_task(char *name, void *entry) {
+    pt_regs_t regs;
+
+    memset((void *)&regs, 0, sizeof(regs));
+
+    // 内核任务入口
+    regs.edx = (unsigned long)entry;
+
+    regs.eax = (u32)name;
+
+    // 创建内核任务的时候就直接指定其在fork后走的路径
+    // 就不用走sysexit那个路径了
+    extern void ret_from_fork_krnl();
+    regs.eip = (unsigned long)ret_from_fork_krnl;
+    regs.cs = SELECTOR_KRNL_CS;
+    regs.ds = SELECTOR_KRNL_DS;
+    regs.es = SELECTOR_KRNL_DS;
+    regs.ss = SELECTOR_KRNL_DS;
+    regs.fs = SELECTOR_KRNL_DS;
+    regs.gs = SELECTOR_KRNL_DS;
+
+    int pid = do_fork(&regs, FORK_KRNL);
+
+    printk("kernel[%s] task pid is %d\n", name, pid);
+}
+
+// 从multiboot.S进入这里
+void root_task_entry() {
+    sti();
+
+    // 有一点点垃圾事情需要处理
+    // 之前内核初始化都是在关中断下进行的
+    // 这就段时间有可能按键盘，然而键盘不把数据读出来就不会触发下一次中断
+    // 所以得先清空一下键盘
+    inb(0x60);
+
+    kernel_task("init", init_task_entry);
+    kernel_task("disk", disk_task_entry);
+    kernel_task("user", user_task_entry);
+
+    while (1) {
+        asm("hlt;");
+    }
+}
\ No newline at end of file
diff --git a/kernel/init.c b/kernel/task_user.c
similarity index 54%
rename from kernel/init.c
rename to kernel/task_user.c
index 3abeb06..288f67a 100644
--- a/kernel/init.c
+++ b/kernel/task_user.c
@@ -1,3 +1,11 @@
+/*
+ * ------------------------------------------------------------------------
+ *   File Name: task_user.c
+ *      Author: Zhao Yanbai
+ *              2021-11-15 12:21:31 Monday CST
+ * Description: none
+ * ------------------------------------------------------------------------
+ */
 #include <fcntl.h>
 #include <io.h>
 #include <irq.h>
@@ -10,20 +18,6 @@
 #include <system.h>
 #include <types.h>
 
-void root_task_entry();
-int do_fork(pt_regs_t *regs, unsigned long flags);
-
-System system;
-TSS tss;
-Desc idt[NIDT] __attribute__((__aligned__(8)));
-Desc gdt[NGDT] __attribute__((__aligned__(8)));
-char gdtr[6] __attribute__((__aligned__(4)));
-char idtr[6] __attribute__((__aligned__(4)));
-
-// char __initdata kernel_init_stack[KRNL_INIT_STACK_SIZE] __attribute__((__aligned__(PAGE_SIZE)));
-
-// int debug_wait_queue_get();
-
 #define __ring3text__ __attribute__((__section__(".ring3.text")))
 
 int ring3_sysctest();
@@ -89,84 +83,4 @@ void user_task_entry() {
     // eip --> edx
     // esp --> ecx
     asm volatile("sysexit;" ::"d"(0x08000000), "c"(0x30000000 + PAGE_SIZE - 100));
-}
-
-void init_task_entry() {
-    int cnt = 0;
-    pid_t id = sysc_getpid();
-
-    // 赋予不同的优先级
-    current->priority = id * 30;
-
-    if (current->priority <= 0) {
-        current->priority = 1;
-    }
-    if (current->priority > 100) {
-        current->priority = 100;
-    }
-
-    while (1) {
-        // sysc_test();
-        // printl(MPL_TASK_0 + id, "task:%d [%08x] weight %d cnt %d", id, current, current->weight, cnt++);
-        // printl(MPL_TASK_1, "task:%d [%08x] weight %d cnt %d", id, current, current->weight, cnt++);
-        int v = 0;  // debug_wait_queue_get();
-        // printk("task:%d wait queue get %d\n", id, v);
-        asm("hlt;");
-    }
-}
-
-void disk_task_entry() {
-    while (1) {
-        schedule();
-    }
-}
-
-void kernel_task(char *name, void *entry) {
-    pt_regs_t regs;
-
-    memset((void *)&regs, 0, sizeof(regs));
-
-    // 内核任务入口
-    regs.edx = (unsigned long)entry;
-
-    regs.eax = (u32)name;
-
-    // 创建内核任务的时候就直接指定其在fork后走的路径
-    // 就不用走sysexit那个路径了
-    extern void ret_from_fork_krnl();
-    regs.eip = (unsigned long)ret_from_fork_krnl;
-    regs.cs = SELECTOR_KRNL_CS;
-    regs.ds = SELECTOR_KRNL_DS;
-    regs.es = SELECTOR_KRNL_DS;
-    regs.ss = SELECTOR_KRNL_DS;
-    regs.fs = SELECTOR_KRNL_DS;
-    regs.gs = SELECTOR_KRNL_DS;
-
-    int pid = do_fork(&regs, FORK_KRNL);
-
-    printk("kernel[%s] task pid is %d\n", name, pid);
-}
-
-// 从multiboot.S进入这里
-void root_task_entry() {
-    sti();
-
-    // 有一点点垃圾事情需要处理
-    // 之前内核初始化都是在关中断下进行的
-    // 这就段时间有可能按键盘，然而键盘不把数据读出来就不会触发下一次中断
-    // 所以得先清空一下键盘
-    inb(0x60);
-
-    // 继续内核未完成的初始化
-    // 这些初始化在开中断的情况下完成
-    void setup_under_irq();
-    setup_under_irq();
-
-    kernel_task("init", init_task_entry);
-    kernel_task("disk", disk_task_entry);
-    kernel_task("user", user_task_entry);
-
-    while (1) {
-        asm("hlt;");
-    }
-}
+}
\ No newline at end of file