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mykernel-2.0_for_linux-5.4.34.patch
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mykernel-2.0_for_linux-5.4.34.patch
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diff -Naur linux-5.4.34/arch/x86/kernel/time.c linux-5.4.34-mykernel/arch/x86/kernel/time.c
--- linux-5.4.34/arch/x86/kernel/time.c 2020-04-21 15:05:05.000000000 +0800
+++ linux-5.4.34-mykernel/arch/x86/kernel/time.c 2020-04-25 21:58:16.436717811 +0800
@@ -16,6 +16,7 @@
#include <linux/irq.h>
#include <linux/i8253.h>
#include <linux/time.h>
+#include <linux/timer.h>
#include <linux/export.h>
#include <asm/vsyscall.h>
@@ -59,6 +60,7 @@
static irqreturn_t timer_interrupt(int irq, void *dev_id)
{
global_clock_event->event_handler(global_clock_event);
+ my_timer_handler();
return IRQ_HANDLED;
}
diff -Naur linux-5.4.34/include/linux/start_kernel.h linux-5.4.34-mykernel/include/linux/start_kernel.h
--- linux-5.4.34/include/linux/start_kernel.h 2020-04-21 15:05:05.000000000 +0800
+++ linux-5.4.34-mykernel/include/linux/start_kernel.h 2020-04-25 22:00:17.304717811 +0800
@@ -9,6 +9,7 @@
up something else. */
extern asmlinkage void __init start_kernel(void);
+extern void __init my_start_kernel(void);
extern void __init arch_call_rest_init(void);
extern void __ref rest_init(void);
diff -Naur linux-5.4.34/include/linux/timer.h linux-5.4.34-mykernel/include/linux/timer.h
--- linux-5.4.34/include/linux/timer.h 2020-04-21 15:05:05.000000000 +0800
+++ linux-5.4.34-mykernel/include/linux/timer.h 2020-04-25 21:56:45.064717811 +0800
@@ -193,6 +193,8 @@
extern void init_timers(void);
extern void run_local_timers(void);
+extern void my_timer_handler(void);
+
struct hrtimer;
extern enum hrtimer_restart it_real_fn(struct hrtimer *);
diff -Naur linux-5.4.34/init/main.c linux-5.4.34-mykernel/init/main.c
--- linux-5.4.34/init/main.c 2020-04-21 15:05:05.000000000 +0800
+++ linux-5.4.34-mykernel/init/main.c 2020-04-25 22:01:13.476717811 +0800
@@ -781,6 +781,7 @@
arch_post_acpi_subsys_init();
sfi_init_late();
+ my_start_kernel();
/* Do the rest non-__init'ed, we're now alive */
arch_call_rest_init();
}
diff -Naur linux-5.4.34/Makefile linux-5.4.34-mykernel/Makefile
--- linux-5.4.34/Makefile 2020-04-21 15:05:05.000000000 +0800
+++ linux-5.4.34-mykernel/Makefile 2020-04-25 22:02:47.144717811 +0800
@@ -1012,7 +1012,7 @@
export MODORDER := $(extmod-prefix)modules.order
ifeq ($(KBUILD_EXTMOD),)
-core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/
+core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ mykernel/
vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
$(core-y) $(core-m) $(drivers-y) $(drivers-m) \
diff -Naur linux-5.4.34/mykernel/Makefile linux-5.4.34-mykernel/mykernel/Makefile
--- linux-5.4.34/mykernel/Makefile 1970-01-01 08:00:00.000000000 +0800
+++ linux-5.4.34-mykernel/mykernel/Makefile 2020-04-25 17:14:13.537908421 +0800
@@ -0,0 +1,6 @@
+#
+# Makefile for the linux mykernel.
+#
+
+obj-y = mymain.o myinterrupt.o
+
diff -Naur linux-5.4.34/mykernel/myinterrupt.c linux-5.4.34-mykernel/mykernel/myinterrupt.c
--- linux-5.4.34/mykernel/myinterrupt.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-5.4.34-mykernel/mykernel/myinterrupt.c 2020-04-25 19:09:50.612555999 +0800
@@ -0,0 +1,44 @@
+/*
+ * linux/mykernel/myinterrupt.c
+ *
+ * Kernel internal my_timer_handler
+ *
+ * Copyright (C) 2013 Mengning
+ *
+ */
+#include <linux/kernel_stat.h>
+#include <linux/export.h>
+#include <linux/interrupt.h>
+#include <linux/percpu.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/pid_namespace.h>
+#include <linux/notifier.h>
+#include <linux/thread_info.h>
+#include <linux/time.h>
+#include <linux/jiffies.h>
+#include <linux/posix-timers.h>
+#include <linux/cpu.h>
+#include <linux/syscalls.h>
+#include <linux/delay.h>
+#include <linux/tick.h>
+#include <linux/kallsyms.h>
+#include <linux/irq_work.h>
+#include <linux/sched.h>
+#include <linux/sched/sysctl.h>
+#include <linux/slab.h>
+
+#include <asm/uaccess.h>
+#include <asm/unistd.h>
+#include <asm/div64.h>
+#include <asm/timex.h>
+#include <asm/io.h>
+
+/*
+ * Called by timer interrupt.
+ */
+void my_timer_handler(void)
+{
+ pr_notice("\n>>>>>>>>>>>>>>>>>my_timer_handler here<<<<<<<<<<<<<<<<<<\n\n");
+}
diff -Naur linux-5.4.34/mykernel/mymain.c linux-5.4.34-mykernel/mykernel/mymain.c
--- linux-5.4.34/mykernel/mymain.c 1970-01-01 08:00:00.000000000 +0800
+++ linux-5.4.34-mykernel/mykernel/mymain.c 2020-04-25 19:10:27.635058000 +0800
@@ -0,0 +1,91 @@
+/*
+ * linux/mykernel/mymain.c
+ *
+ * Kernel internal my_start_kernel
+ *
+ * Copyright (C) 2013 Mengning
+ *
+ */
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/kernel.h>
+#include <linux/syscalls.h>
+#include <linux/stackprotector.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/initrd.h>
+#include <linux/acpi.h>
+#include <linux/tty.h>
+#include <linux/percpu.h>
+#include <linux/kmod.h>
+#include <linux/vmalloc.h>
+#include <linux/kernel_stat.h>
+#include <linux/start_kernel.h>
+#include <linux/security.h>
+#include <linux/smp.h>
+#include <linux/profile.h>
+#include <linux/rcupdate.h>
+#include <linux/moduleparam.h>
+#include <linux/kallsyms.h>
+#include <linux/writeback.h>
+#include <linux/cpu.h>
+#include <linux/cpuset.h>
+#include <linux/cgroup.h>
+#include <linux/efi.h>
+#include <linux/tick.h>
+#include <linux/interrupt.h>
+#include <linux/taskstats_kern.h>
+#include <linux/delayacct.h>
+#include <linux/unistd.h>
+#include <linux/rmap.h>
+#include <linux/mempolicy.h>
+#include <linux/key.h>
+#include <linux/buffer_head.h>
+#include <linux/debug_locks.h>
+#include <linux/debugobjects.h>
+#include <linux/lockdep.h>
+#include <linux/kmemleak.h>
+#include <linux/pid_namespace.h>
+#include <linux/device.h>
+#include <linux/kthread.h>
+#include <linux/sched.h>
+#include <linux/signal.h>
+#include <linux/idr.h>
+#include <linux/kgdb.h>
+#include <linux/ftrace.h>
+#include <linux/async.h>
+#include <linux/sfi.h>
+#include <linux/shmem_fs.h>
+#include <linux/slab.h>
+#include <linux/perf_event.h>
+#include <linux/file.h>
+#include <linux/ptrace.h>
+#include <linux/blkdev.h>
+#include <linux/elevator.h>
+
+#include <asm/io.h>
+#include <asm/bugs.h>
+#include <asm/setup.h>
+#include <asm/sections.h>
+#include <asm/cacheflush.h>
+
+#ifdef CONFIG_X86_LOCAL_APIC
+#include <asm/smp.h>
+#endif
+
+
+void __init my_start_kernel(void)
+{
+ int i = 0;
+ while(1)
+ {
+ i++;
+ if(i%100000 == 0)
+ pr_notice("my_start_kernel here %d \n",i);
+
+ }
+}
diff -Naur linux-5.4.34/mykernel/README.md linux-5.4.34-mykernel/mykernel/README.md
--- linux-5.4.34/mykernel/README.md 1970-01-01 08:00:00.000000000 +0800
+++ linux-5.4.34-mykernel/mykernel/README.md 2020-04-25 22:18:46.512717811 +0800
@@ -0,0 +1,21 @@
+mykernel 2.0
+==========
+Develop your own OS kernel by reusing Linux infrastructure, based on x86-64/Linux Kernel 5.4.34.
+
+## Set up mykernel 2.0 in Ubuntu 18.04
+
+```
+sudo apt install build-essential
+sudo apt install axel
+sudo apt install qemu # install QEMU
+sudo apt install libncurses-dev bison flex libssl-dev libelf-dev
+wget https://raw.github.com/mengning/mykernel/master/mykernel-2.0_for_linux-5.3.34.patch
+axel -n 20 https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/linux-5.4.34.tar.xz
+xz -d linux-5.4.34.tar.xz
+tar -xvf linux-5.4.34.tar
+cd linux-5.4.34
+patch -p1 < ../mykernel-2.0_for_linux-5.3.34.patch
+make defconfig # Default configuration is based on 'x86_64_defconfig'
+make -j$(nproc)
+qemu-system-x86_64 -kernel arch/x86/boot/bzImage
+```