Question

错误是:(我理解警告，请纠正错误）

root@kali:~/Desktop/Ohm Os# make kernel.o

g++ -m32 -o kernel.o -c kernel.cpp

kernel.cpp: In function ‘void kernelMain(void*, unsigned int)’:

kernel.cpp:27:25: warning: ISO C++ forbids converting a string constant to 

‘char*’ [-Wwrite-strings]

     printf("HELLO WORLD");
                         ^
kernel.cpp:31:1: error: expected primary-expression before ‘}’ token
 }
 ^

Makefile:9: recipe for target 'kernel.o' failed

make: *** [kernel.o] Error 1

这是我的KERNEL.CPP：

void printf(char* str)
{
    unsigned short* VideoMemory = (unsigned short*)0xb8000;
    for(int i = 0; str[i] != '\0'; ++i)
        VideoMemory[i] = (VideoMemory[i] & 0xFF00) | str[i];
}

void kernelMain(void* multiboot_structure, unsigned int magicnumber)
{
    printf("HELLO WORLD");
    while(1)
}

还有我的Makefile：

GPPPARAMS = -m32
ASPARAMS = --32
LDPARAMS = -melf_i386
ojects = loader.o kernel.o

%.o: %.cpp
    g++ $(GPPPARAMS) -o $@ -c $<

%.o: %.s
    as $(ASPARAMS) -o $@ $<

mykernel.bin: linker.ld $(objects)
    ld $(LDPARAMS) -T $< -o $@ $(objects)

install: mykernel.bin
    sudo cp $< /boot/mykernel.bin

Answer 1

kernel.cpp：31：1：错误：在'}'标记之前预期的primary-expression }

尝试：而（1）;

Answer 2

您确定您了解警告的后果吗？

至于错误，您似乎混合了do while和while的语法

您需要使用

while (condition)
  statement

或

do
  statement
while (condition)

kernel.cpp在制作kernel.o时显示错误和Makefile错误

2 个答案: