【发布时间】:2018-02-02 21:50:52
【问题描述】:
我目前正在使用我的操作系统,我的问题是关于我从 MakeFile 创建的 mykernel.iso。我的发行版是 Kali Linux,我遇到的问题是关于启动的。
在我的目录中,我有Makefile,kernel.cpp,kernel.o,linker.d,loader.o,loader.s,types.h,mykernel.o,mykernel.iso。当我使用 VirtualBox 启动 mykernel.iso 时,出现错误
致命!无法从引导介质中读取。系统停止!
(mykernel.iso 也应该是 4 mb,我的是 340 kb)
以下是代码:
生成文件:
GCCPARAMS = -m32 -fno-use-cxa-atexit -nostdlib -fno-builtin -fno-rtti -fno-exceptions -fno-leading-underscore
ASPARAMS = --32
LDPARAMS = -melf_i386
objects = loader.o kernel.o
%.o: %.cpp
gcc $(GCCPARAMS) -c -o $@ $<
%.o: %.s
as $(ASPARAMS) -o $@ $<
mykernel.bin: linker.ld $(objects)
ld $(LDPARAMS) -T $< -o $@ $(objects)
mykernel.iso: mykernel.bin
mkdir iso
mkdir iso/boot
mkdir iso/boot/grub
cp mykernel.bin iso/boot/mykernel.bin
echo 'set timeout=0' > iso/boot/grub/grub.cfg
echo 'set default=0' >> iso/boot/grub/grub.cfg
echo '' >> iso/boot/grub/grub.cfg
echo 'menuentry "My Operating System" {' >> iso/boot/grub/grub.cfg
echo ' multiboot /boot/mykernel.bin' >> iso/boot/grub/grub.cfg
echo ' boot' >> iso/boot/grub/grub.cfg
echo '}' >> iso/boot/grub/grub.cfg
grub-mkrescue --output=mykernel.iso iso
rm -rf iso
run: mykernel.iso
(killall VirtualBox && sleep 1) || true
VirtualBox --startvm 'My Operating System' &
install: mykernel.bin
sudo cp $< /boot/mykernel.bin
kernel.cpp:
#include "types.h"
void printf(char* str)
{
static uint16_t* VideoMemory = (uint16_t*)0xb8000;
for(int i = 0; str[i] != '\0'; ++i)
VideoMemory[i] = (VideoMemory[i] & 0xFF00) | str[i];
}
typedef void (*constructor)();
extern "C" constructor start_ctors;
extern "C" constructor end_ctors;
extern "C" void callConstructors()
{
for(constructor* i = &start_ctors; i != &end_ctors; i++)
(*i)();
}
extern "C" void kernelMain(const void* multiboot_structure, uint32_t /*multiboot_magic*/)
{
printf("Welcome To My Operating System");
while(1);
}
朋友们有什么建议吗?
【问题讨论】:
-
安装最新版本的iso文件生成 sudo install xorriso 如果你在ubuntu中
-
非常感谢@JerryChen。成功钉住它
标签: c++ linux makefile linker operating-system