hw

kernel_modules/1-2-test-mod/Kbuild

@@ -0,0 +1,3 @@
+ccflags-y = -Wno-unused-function -Wno-unused-label -Wno-unused-variable -DDEBUG
+
+obj-m = hello_mod.o

kernel_modules/1-2-test-mod/hello_mod.c

@@ -0,0 +1,21 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+MODULE_DESCRIPTION("Simple module");
+MODULE_AUTHOR("Kernel Hacker");
+MODULE_LICENSE("GPL");
+
+static int my_hello_init(void)
+{
+	pr_debug("Hello!\n");
+	return 0;
+}
+
+static void hello_exit(void)
+{
+	pr_debug("Goodbye!\n");
+}
+
+module_init(my_hello_init);
+module_exit(hello_exit);

kernel_modules/1-2-test-mod/hello_mod.mod

@@ -0,0 +1,2 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/1-2-test-mod/hello_mod.o
+

kernel_modules/1-2-test-mod/hello_mod.mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+MODULE_INFO(depends, "");
+

kernel_modules/1-2-test-mod/modules.order

@@ -0,0 +1 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/1-2-test-mod/hello_mod.ko

kernel_modules/3-error-mod/Kbuild

@@ -0,0 +1,3 @@
+ccflags-y = -Wno-unused-function -Wno-unused-label -Wno-unused-variable
+
+obj-m = err_mod.o

kernel_modules/3-error-mod/err_mod.c

@@ -0,0 +1,25 @@
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+MODULE_DESCRIPTION("Error module");
+MODULE_AUTHOR("Kernel Hacker");
+MODULE_LICENSE("GPL");
+
+static int n1, n2;
+
+static int err_init(void)
+{
+	n1 = 1; n2 = 2;
+	pr_info("n1 is %d, n2 is %d\n", n1, n2);
+
+	return 0;
+}
+
+static void err_exit(void)
+{
+	pr_info("sum is %d\n", n1 + n2);
+}
+
+module_init(err_init);
+module_exit(err_exit);

kernel_modules/3-error-mod/err_mod.mod

@@ -0,0 +1,2 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/3-error-mod/err_mod.o
+

kernel_modules/3-error-mod/err_mod.mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+MODULE_INFO(depends, "");
+

kernel_modules/3-error-mod/modules.order

@@ -0,0 +1 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/3-error-mod/err_mod.ko

kernel_modules/4-multi-mod/Kbuild

@@ -0,0 +1,7 @@
+ccflags-y = -Wno-unused-function -Wno-unused-label -Wno-unused-variable
+
+# TODO: add rules to create a multi object module
+
+obj-m = supermodule.o
+supermodule-y = mod1.o mod2.o
+

kernel_modules/4-multi-mod/mod1.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+MODULE_DESCRIPTION("Multi-file module");
+MODULE_AUTHOR("Kernel Hacker");
+MODULE_LICENSE("GPL");
+
+extern int add(int a, int b);
+
+static int n1, n2;
+
+static int my_hello_init(void)
+{
+	n1 = 1; n2 = 2;
+	pr_info("n1 is %d, n2 is %d\n", n1, n2);
+
+	return 0;
+}
+
+static void hello_exit(void)
+{
+	pr_info("sum is %d\n", add(n1, n2));
+}
+
+module_init(my_hello_init);
+module_exit(hello_exit);

kernel_modules/4-multi-mod/mod2.c

@@ -0,0 +1,4 @@
+int add(int a, int b)
+{
+	return a + b;
+}

kernel_modules/4-multi-mod/modules.order

@@ -0,0 +1 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/4-multi-mod/supermodule.ko

kernel_modules/4-multi-mod/supermodule.mod

@@ -0,0 +1,2 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/4-multi-mod/mod1.o /home/osboxes/linux/tools/labs/skels/./kernel_modules/4-multi-mod/mod2.o
+

kernel_modules/4-multi-mod/supermodule.mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+MODULE_INFO(depends, "");
+

kernel_modules/5-oops-mod/Kbuild

@@ -0,0 +1,5 @@
+# TODO: add flags to generate debug information
+
+EXTRA_CFLAGS = -Wall -g
+
+obj-m = oops_mod.o

kernel_modules/5-oops-mod/modules.order

@@ -0,0 +1 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/5-oops-mod/oops_mod.ko

kernel_modules/5-oops-mod/oops_mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+MODULE_DESCRIPTION("Oops generating module");
+MODULE_AUTHOR("So2rul Esforever");
+MODULE_LICENSE("GPL");
+
+static int my_oops_init(void)
+{
+	char *p = 0;
+
+	pr_info("before init\n");
+	*p = 'a';
+	pr_info("after init\n");
+
+	return 0;
+}
+
+static void my_oops_exit(void)
+{
+	pr_info("module goes all out\n");
+}
+
+module_init(my_oops_init);
+module_exit(my_oops_exit);

kernel_modules/5-oops-mod/oops_mod.mod

@@ -0,0 +1,2 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/5-oops-mod/oops_mod.o
+

kernel_modules/5-oops-mod/oops_mod.mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+MODULE_INFO(depends, "");
+

kernel_modules/6-cmd-mod/Kbuild

@@ -0,0 +1,3 @@
+ccflags-y = -Wno-unused-function -Wno-unused-label -Wno-unused-variable
+
+obj-m = cmd_mod.o

kernel_modules/6-cmd-mod/cmd_mod.c

@@ -0,0 +1,26 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+MODULE_DESCRIPTION("Command-line args module");
+MODULE_AUTHOR("Kernel Hacker");
+MODULE_LICENSE("GPL");
+
+static char *str = "the worm";
+
+module_param(str, charp, 0000);
+MODULE_PARM_DESC(str, "A simple string");
+
+static int __init cmd_init(void)
+{
+	pr_info("Early bird gets %s\n", str);
+	return 0;
+}
+
+static void __exit cmd_exit(void)
+{
+	pr_info("Exit, stage left\n");
+}
+
+module_init(cmd_init);
+module_exit(cmd_exit);

kernel_modules/6-cmd-mod/cmd_mod.mod

@@ -0,0 +1,2 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/6-cmd-mod/cmd_mod.o
+

kernel_modules/6-cmd-mod/cmd_mod.mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+MODULE_INFO(depends, "");
+

kernel_modules/6-cmd-mod/modules.order

@@ -0,0 +1 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/6-cmd-mod/cmd_mod.ko

kernel_modules/7-list-proc/Kbuild

@@ -0,0 +1,3 @@
+ccflags-y = -Wno-unused-function -Wno-unused-label -Wno-unused-variable
+
+obj-m = list_proc.o

kernel_modules/7-list-proc/list_proc.c

@@ -0,0 +1,35 @@
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/sched/signal.h>
+
+MODULE_DESCRIPTION("List current processes");
+MODULE_AUTHOR("Kernel Hacker");
+MODULE_LICENSE("GPL");
+
+static int my_proc_init(void)
+{
+	struct task_struct *p;
+
+	/* TODO: print current process pid and its name */
+	pr_info("Information about current process:\n");
+	pr_info("    pid: %d;\n    name: %s\n", current->pid, current->comm); 
+
+	/* TODO: print the pid and name of all processes */
+	pr_info("Information about all processes:\n");
+	for_each_process(p)
+		pr_info("**\n    pid: %d;\n    name: %s\n", p->pid, p->comm);
+
+	return 0;
+}
+
+static void my_proc_exit(void)
+{
+	/* TODO: print current process pid and name */
+	pr_info("Information about current process:\n");
+        pr_info("    pid: %d;\n    name: %s\n", current->pid, current->comm);
+}
+
+module_init(my_proc_init);
+module_exit(my_proc_exit);

kernel_modules/7-list-proc/list_proc.mod

@@ -0,0 +1,2 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/7-list-proc/list_proc.o
+

kernel_modules/7-list-proc/list_proc.mod.c

@@ -0,0 +1,27 @@
+#include <linux/module.h>
+#define INCLUDE_VERMAGIC
+#include <linux/build-salt.h>
+#include <linux/vermagic.h>
+#include <linux/compiler.h>
+
+BUILD_SALT;
+
+MODULE_INFO(vermagic, VERMAGIC_STRING);
+MODULE_INFO(name, KBUILD_MODNAME);
+
+__visible struct module __this_module
+__section(".gnu.linkonce.this_module") = {
+	.name = KBUILD_MODNAME,
+	.init = init_module,
+#ifdef CONFIG_MODULE_UNLOAD
+	.exit = cleanup_module,
+#endif
+	.arch = MODULE_ARCH_INIT,
+};
+
+#ifdef CONFIG_RETPOLINE
+MODULE_INFO(retpoline, "Y");
+#endif
+
+MODULE_INFO(depends, "");
+

kernel_modules/7-list-proc/modules.order

@@ -0,0 +1 @@
+/home/osboxes/linux/tools/labs/skels/./kernel_modules/7-list-proc/list_proc.ko