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study/kernel/01-process/00-code/print_task/Makefile

@@ -1,69 +1,69 @@
-# ------------------------------------------------------------------------------
-#
-# Makefile for the LDD-LinuxDeviceDrivers print_task.
-#
-# Author: gatieme
-# Create: 2016-07-29 15:50:46
-# Last modified: 2016-07-29 16:10:29
-# Description:
-# 	This program is loaded as a kernel(v2.6.18 or later) module.
-# 	Use "make install" to load it into kernel.
-# 	Use "make remove" to remove the module out of kernel.
-#
-# ------------------------------------------------------------------------------
-
-
-ROOT=..
-#PLATFORM=$(shell $(ROOT)/systype.sh)
-#include $(ROOT)/Make.defines.$(PLATFORM)
-
-MODULE_NAME := print_task
-
-ifneq ($(KERNELRELEASE),)
-
-#CFG_FLAGS += -O2  -I./
-#EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)
-
-
-
-obj-m := $(MODULE_NAME).o #print_task.o
-
-else
-
-KERNELDIR ?= /lib/modules/$(shell uname -r)/build
-
-PWD := $(shell pwd)
-
-modules:
-	make -C $(KERNELDIR) M=$(PWD) modules
-
-modules_install:
-	make -C $(KERNELDIR) M=$(PWD) modules_install
-
-
-
-insmod:
-	sudo insmod $(MODULE_NAME).ko
-
-reinsmod:
-	sudo rmmod $(MODULE_NAME)
-	sudo insmod $(MODULE_NAME).ko
-
-github:
-	cd $(ROOT) && make github
-
-rmmod:
-	sudo rmmod $(MODULE_NAME)
-
-test :
-	sudo ../injector/memInjector -l stack -m random -t word_0 --time 1 --timeout 3 -p 1
-
-clean:
-	make -C $(KERNELDIR) M=$(PWD) clean
-	rm -f modules.order Module.symvers Module.markers
-
-.PHNOY:
-	modules modules_install clean
-
-endif
-
+# ------------------------------------------------------------------------------
+#
+# Makefile for the LDD-LinuxDeviceDrivers print_task.
+#
+# Author: gatieme
+# Create: 2016-07-29 15:50:46
+# Last modified: 2016-07-29 16:10:29
+# Description:
+# 	This program is loaded as a kernel(v2.6.18 or later) module.
+# 	Use "make install" to load it into kernel.
+# 	Use "make remove" to remove the module out of kernel.
+#
+# ------------------------------------------------------------------------------
+
+
+ROOT=..
+#PLATFORM=$(shell $(ROOT)/systype.sh)
+#include $(ROOT)/Make.defines.$(PLATFORM)
+
+MODULE_NAME := print_task
+
+ifneq ($(KERNELRELEASE),)
+
+#CFG_FLAGS += -O2  -I./
+#EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)
+
+
+
+obj-m := $(MODULE_NAME).o #print_task.o
+
+else
+
+KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+
+PWD := $(shell pwd)
+
+modules:
+	make -C $(KERNELDIR) M=$(PWD) modules
+
+modules_install:
+	make -C $(KERNELDIR) M=$(PWD) modules_install
+
+
+
+insmod:
+	sudo insmod $(MODULE_NAME).ko
+
+reinsmod:
+	sudo rmmod $(MODULE_NAME)
+	sudo insmod $(MODULE_NAME).ko
+
+github:
+	cd $(ROOT) && make github
+
+rmmod:
+	sudo rmmod $(MODULE_NAME)
+
+test :
+	sudo ../injector/memInjector -l stack -m random -t word_0 --time 1 --timeout 3 -p 1
+
+clean:
+	make -C $(KERNELDIR) M=$(PWD) clean
+	rm -f modules.order Module.symvers Module.markers
+
+.PHNOY:
+	modules modules_install clean
+
+endif
+

study/kernel/01-process/00-code/print_vmarea/Makefile

@@ -1,67 +1,67 @@
-# Makefile for the memory fault injection engine.
-#
-# Author: gatieme
-# Create: 2016-07-29 15:50:46
-# Last modified: 2016-07-29 16:10:29
-# Description:
-# 	This program is loaded as a kernel(v2.6.18 or later) module.
-# 	Use "make install" to load it into kernel.
-# 	Use "make remove" to remove the module out of kernel.
-#
-ROOT=..
-#PLATFORM=$(shell $(ROOT)/systype.sh)
-#include $(ROOT)/Make.defines.$(PLATFORM)
-
-MODULE_NAME := print_vmarea
-
-ifneq ($(KERNELRELEASE),)
-
-#CFG_FLAGS += -O2  -I./
-#EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)
-
-
-
-obj-m := $(MODULE_NAME).o #print_vmarea.o
-
-else
-
-#MODULE_NAME := print_vmarea
-KERNELDIR ?= /lib/modules/$(shell uname -r)/build
-#KERNELDIR ?= /home/gatieme/Work/Kernel/
-PWD := $(shell pwd)
-
-modules:
-	make -C $(KERNELDIR) M=$(PWD) modules
-
-modules_install:
-	make -C $(KERNELDIR) M=$(PWD) modules_install
-
-
-
-insmod:
-	sudo insmod $(MODULE_NAME).ko
-
-reinsmod:
-	sudo rmmod $(MODULE_NAME)
-	sudo insmod $(MODULE_NAME).ko
-
-github:
-	cd $(ROOT) && make github
-
-rmmod:
-	sudo rmmod $(MODULE_NAME)
-
-test :
-	sudo ../injector/memInjector -l stack -m random -t word_0 --time 1 --timeout 3 -p 1
-
-clean:
-	make -C $(KERNELDIR) M=$(PWD) clean
-	rm -f modules.order Module.symvers Module.markers
-
-.PHNOY:
-	modules modules_install clean
-
-
-
-endif
-
+# Makefile for the memory fault injection engine.
+#
+# Author: gatieme
+# Create: 2016-07-29 15:50:46
+# Last modified: 2016-07-29 16:10:29
+# Description:
+# 	This program is loaded as a kernel(v2.6.18 or later) module.
+# 	Use "make install" to load it into kernel.
+# 	Use "make remove" to remove the module out of kernel.
+#
+ROOT=..
+#PLATFORM=$(shell $(ROOT)/systype.sh)
+#include $(ROOT)/Make.defines.$(PLATFORM)
+
+MODULE_NAME := print_vmarea
+
+ifneq ($(KERNELRELEASE),)
+
+#CFG_FLAGS += -O2  -I./
+#EXTRA_CFLAGS  += $(C_FLAGS) $(CFG_INC) $(CFG_INC)
+
+
+
+obj-m := $(MODULE_NAME).o #print_vmarea.o
+
+else
+
+#MODULE_NAME := print_vmarea
+KERNELDIR ?= /lib/modules/$(shell uname -r)/build
+#KERNELDIR ?= /home/gatieme/Work/Kernel/
+PWD := $(shell pwd)
+
+modules:
+	make -C $(KERNELDIR) M=$(PWD) modules
+
+modules_install:
+	make -C $(KERNELDIR) M=$(PWD) modules_install
+
+
+
+insmod:
+	sudo insmod $(MODULE_NAME).ko
+
+reinsmod:
+	sudo rmmod $(MODULE_NAME)
+	sudo insmod $(MODULE_NAME).ko
+
+github:
+	cd $(ROOT) && make github
+
+rmmod:
+	sudo rmmod $(MODULE_NAME)
+
+test :
+	sudo ../injector/memInjector -l stack -m random -t word_0 --time 1 --timeout 3 -p 1
+
+clean:
+	make -C $(KERNELDIR) M=$(PWD) clean
+	rm -f modules.order Module.symvers Module.markers
+
+.PHNOY:
+	modules modules_install clean
+
+
+
+endif
+

study/kernel/02-memory/00-code/cr3_pgd/crs_pgd.c

@@ -1,31 +1,31 @@
-//#include <asm/system.h>
-#include <linux/mm.h>
-#include <linux/mm_types.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-
-static unsigned long read_pgd(void)
-{
-    return (unsigned long)current->mm->pgd;
-}
-
-static int __init init_cr3_pgd(void)
-{
-    unsigned long cr3;
-    unsigned long pgd = 0;
-
-    cr3 = read_cr3();
-    printk("cr3----------------->0x%lx\n", cr3);
-    pgd = __pa(read_pgd());
-    printk("pgd----------------->0x%lx\n", pgd);
-    return 0;
-}
-
-static void __exit exit_cr3_pgd(void)
-{
-    printk("--------------------->exit!\n");
-    return ;
-}
-
-module_init(init_cr3_pgd);
-module_exit(exit_cr3_pgd);
+//#include <asm/system.h>
+#include <linux/mm.h>
+#include <linux/mm_types.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+
+static unsigned long read_pgd(void)
+{
+    return (unsigned long)current->mm->pgd;
+}
+
+static int __init init_cr3_pgd(void)
+{
+    unsigned long cr3;
+    unsigned long pgd = 0;
+
+    cr3 = read_cr3();
+    printk("cr3----------------->0x%lx\n", cr3);
+    pgd = __pa(read_pgd());
+    printk("pgd----------------->0x%lx\n", pgd);
+    return 0;
+}
+
+static void __exit exit_cr3_pgd(void)
+{
+    printk("--------------------->exit!\n");
+    return ;
+}
+
+module_init(init_cr3_pgd);
+module_exit(exit_cr3_pgd);

study/kernel/02-memory/00-code/kv2p/kv2p.c

@@ -1,45 +1,45 @@
-/*****************************************************************
-文件名：mem.c
-输入参数：
-pid 接收待查询进程的PID
-va 接收待查询的虚拟地址
-*****************************************************************/
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
-
-MODULE_LICENSE("GPL");
-
-
-static unsigned long VA;
-module_param(VA, ulong, 0644);
-
-
-
-static int __init kv2p_init(void)
-{
-    int value = 10;
-    // use virt_to_phys
-    // http://lxr.free-electrons.com/source/arch/arm64/include/asm/memory.h?v4.7#L189
-
-    phys_addr_t phyaddr = virt_to_phys((const volatile void *)&value);
-    printk("0x%lx\n", (unsigned long )phyaddr);
-
-    return 0;
-}
-
-
-
-static void __exit kv2p_exit(void)
-{
-    printk(KERN_INFO"Goodbye!\n");
-}
-
-module_init(kv2p_init);
-module_exit(kv2p_exit);
+/*****************************************************************
+文件名：mem.c
+输入参数：
+pid 接收待查询进程的PID
+va 接收待查询的虚拟地址
+*****************************************************************/
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+
+MODULE_LICENSE("GPL");
+
+
+static unsigned long VA;
+module_param(VA, ulong, 0644);
+
+
+
+static int __init kv2p_init(void)
+{
+    int value = 10;
+    // use virt_to_phys
+    // http://lxr.free-electrons.com/source/arch/arm64/include/asm/memory.h?v4.7#L189
+
+    phys_addr_t phyaddr = virt_to_phys((const volatile void *)&value);
+    printk("0x%lx\n", (unsigned long )phyaddr);
+
+    return 0;
+}
+
+
+
+static void __exit kv2p_exit(void)
+{
+    printk(KERN_INFO"Goodbye!\n");
+}
+
+module_init(kv2p_init);
+module_exit(kv2p_exit);

study/kernel/02-memory/00-code/mmap/test.c

@@ -1,57 +1,57 @@
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <linux/fb.h>
-#include <sys/mman.h>
-#include <sys/ioctl.h>
-
-#define PAGE_SIZE 4096
-
-
-int main(int argc , char *argv[])
-{
-
-    int fd;
-    int i;
-    unsigned char *p_map;
-
-
-    //打开设备
-    fd = open("/dev/mymap",O_RDWR);
-
-    if(fd < 0)
-    {
-        printf("open fail\n");
-        exit(1);
-    }
-
-
-
-    //内存映射
-    p_map = (unsigned char *)mmap(0, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,fd, 0);
-    if(p_map == MAP_FAILED)
-    {
-
-        printf("mmap fail\n");
-        goto here;
-    }
-
-
-
-    //打印映射后的内存中的前10个字节内容
-    for(i=0;i<10;i++)
-    {
-        printf("%d\n",p_map[i]);
-        p_map[i] = i + 10;
-    }
-
-
-
-
-here:
-
-    munmap(p_map, PAGE_SIZE);
-    return 0;
-}
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <linux/fb.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+
+#define PAGE_SIZE 4096
+
+
+int main(int argc , char *argv[])
+{
+
+    int fd;
+    int i;
+    unsigned char *p_map;
+
+
+    //打开设备
+    fd = open("/dev/mymap",O_RDWR);
+
+    if(fd < 0)
+    {
+        printf("open fail\n");
+        exit(1);
+    }
+
+
+
+    //内存映射
+    p_map = (unsigned char *)mmap(0, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,fd, 0);
+    if(p_map == MAP_FAILED)
+    {
+
+        printf("mmap fail\n");
+        goto here;
+    }
+
+
+
+    //打印映射后的内存中的前10个字节内容
+    for(i=0;i<10;i++)
+    {
+        printf("%d\n",p_map[i]);
+        p_map[i] = i + 10;
+    }
+
+
+
+
+here:
+
+    munmap(p_map, PAGE_SIZE);
+    return 0;
+}