find-task中添加了print_vm_area的代码...

study/kernel/process/task/find_task/Makefile

@@ -1,30 +1,26 @@
 ifneq ($(KERNELRELEASE),)
 
-CFG_FLAGS += -O2  -I./
-EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)  
+#CFG_FLAGS += -O2  -I./
+#EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)  
 
 
-# 注意：驱动模块的名字 千万 不能和本文件夹内的任何文件同名！  
-MODULE_NAME := find-task    					#指定驱动模块的名字  
-RESMAIN_CORE_OBJS := find_task.o				#指定驱动模块的核心文件（有init 和 exit）  
-RESMAIN_GLUE_OBJS := get_task.o		#依赖文件  
+MODULE_NAME := find-task 
+RESMAIN_CORE_OBJS := find_task.o 
+RESMAIN_GLUE_OBJS := get_task.o 
 
 
-#xxx-objs := 指定驱动模块的所有依赖文件  
-$(MODULE_NAME)-objs := $(RESMAIN_GLUE_OBJS) $(RESMAIN_CORE_OBJS)   
+find-task-objs := $(RESMAIN_GLUE_OBJS) $(RESMAIN_CORE_OBJS)   
+obj-m += find-task.o
 
-#最终由xxx-objs链接生成find-task.o，再生成find-task.ko  
-obj-m := $(MODULE_NAME).o   #最终由xxx-objs链接生成find-task.o，再生成find-task.ko  
+#$(MODULE_NAME)-objs := $(RESMAIN_GLUE_OBJS) $(RESMAIN_CORE_OBJS)   
+#obj-m := $(MODULE_NAME).o
 
 else
 
-#最终由xxx-objs链接生成find-task.o，再生成find-task.ko  
 KERNELDIR ?= /lib/modules/$(shell uname -r)/build
 PWD := $(shell pwd)
 
-all:
-	@echo "module name : " $(MODULE_NAME)
-	@echo "module objs : " $($(MODULE_NAME)-objs)
+modules:
 	make -C $(KERNELDIR) M=$(PWD) modules
 
 modules_install:

study/kernel/process/task/find_task/Makefile.bak

@@ -0,0 +1,42 @@
+ifneq ($(KERNELRELEASE),)
+
+#CFG_FLAGS += -O2  -I./
+#EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)  
+
+
+# 注意：驱动模块的名字 千万 不能和本文件夹内的任何文件同名！  
+MODULE_NAME := findtask    					#指定驱动模块的名字  
+RESMAIN_CORE_OBJS := find_task.o				#指定驱动模块的核心文件（有init 和 exit）  
+RESMAIN_GLUE_OBJS := get_task.o		#依赖文件  
+
+
+#xxx-objs := 指定驱动模块的所有依赖文件  
+$(MODULE_NAME)-objs := $(RESMAIN_GLUE_OBJS) $(RESMAIN_CORE_OBJS)   
+
+#最终由xxx-objs链接生成find-task.o，再生成find-task.ko  
+obj-m := $(MODULE_NAME).o#最终由xxx-objs链接生成find-task.o，再生成find-task.ko  
+
+else
+
+#最终由xxx-objs链接生成find-task.o，再生成find-task.ko  
+KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+
+all:
+	@echo "module name : " $(MODULE_NAME)
+	@echo "module objs : " $($(MODULE_NAME)-objs)
+	make -C $(KERNELDIR) M=$(PWD) modules
+
+modules_install:
+	make -C $(KERNELDIR) M=$(PWD) modules_install
+
+clean:
+	make -C $(KERNELDIR) M=$(PWD) clean
+
+.PHNOY:
+	modules modules_install clean
+
+
+
+endif  
+  

study/kernel/process/task/find_task/get_task.c

@@ -9,12 +9,16 @@
 #include <linux/moduleparam.h>
 
 #include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/mm_types.h>
+
 
 void print_vm_list(struct task_struct *task)
 {
     struct vm_area_struct *tmp = task->mm->mmap;
 
-    printk("process:%s,pid:%d\n", p->comm, p->pid);
+    printk("process:%s,pid:%d\n", task->comm, task->pid);
 
     while (tmp != NULL)
     {

study/kernel/process/task/find_task/printvm.c

@@ -0,0 +1,79 @@
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <linux/sched.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/mm_types.h>
+
+#ifndef offsetof
+#define offsetof(type, field)   ((long) &((type *)0)->field)
+#endif   /* offsetof */
+
+#ifndef container_of
+#define container_of(ptr, type, member) ({                      \
+        const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
+        (type *)( (char *)__mptr - offsetof(type,member) );})
+#endif
+
+
+static int pid = 1;
+
+module_param(pid,int,0644);
+
+static void print_vm_area(struct vm_area_struct)
+{
+    ((tmp->vm_flags & VM_READ)   == 1) ? printk("r") : printk("-");
+    ((tmp->vm_flags & VM_WRITE)  == 1) ? printk("w") : printk("-");
+    ((tmp->vm_flags & VM_EXEC)   == 1) ? printk("x") : printk("-");
+    ((tmp->vm_flags & VM_SHARED) == 1) ? printk("s") : printk("p");
+
+    printk("\n");
+}
+
+static void print_vm_area_by_list(struct task_struct *task)
+{
+	struct vm_area_struct *tmp = task->mm->mmap;
+
+	printk("process:%s,pid:%d\n", task->comm, task->pid);
+
+	while (tmp != NULL)
+    {
+        print_vm_area(tmp);
+		tmp = tmp->vm_next;
+	}
+}
+
+
+static void visit_rbtree_node(struct rb_node *root)
+{
+	struct vm_area_struct *tmp;
+
+    tmp =  container_of(root,struct vm_area_struct,vm_rb);
+
+    printk("0x%lx - 0x%lx\t",tmp->vm_start,tmp->vm_end);
+
+    print_vm_area(tmp);
+}
+
+static void preorder_rbtree(struct rb_node *root)
+{
+	if (root != NULL)
+    {
+		visit(root);
+		print_rb_tree(root->rb_left);
+		print_rb_tree(root->rb_right);
+	}
+}
+
+static void print_vm_area_by_rbtree(struct task_struct *task)
+{
+   struct task_struct *p;
+	struct pid *k;
+	struct rb_node *root = NULL;
+
+	root = task->mm->mm_rb.rb_node;
+	print_rb_tree(root);
+
+}