compiling C++ class problem

[krillzip]

Hi! I have problems compiling a C++ file containing
a test class to a binary

C++ sourcecode:

class TestClass
{
public:

TestClass(){};
~TestClass(){};
};

int main()
{
TestClass Test;

while(true){}
return false;
}

Makefile:
kernel : kernel.o
ld -nostdlib -nostdinc -fno-builtin -fno-exceptions -o kernel.bin -e main -oformat binary -Ttext 0x00100000 kernel.o

kernel.o : kernel.cpp
gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r

Error:

gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
In file included from kernel.cpp:1:
c:/djgpp/lib/gcc-lib/djgpp/3.04/djgpp.ver:1:25: No include path in which to find sys/version.h
make.exe: *** [kernel.o] Error 1

do you think you can help me guys???

[J. Weeks]

>Makefile:
>kernel : kernel.o
> ld -nostdlib -nostdinc -fno-builtin -fno-exceptions -o kernel.bin -e main -oformat binary -Ttext 0x00100000 kernel.o
>
>kernel.o : kernel.cpp
> gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
>
>Error:
>
>gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
>In file included from kernel.cpp:1:
>c:/djgpp/lib/gcc-lib/djgpp/3.04/djgpp.ver:1:25: No include path in which to find sys/version.h
>make.exe: *** [kernel.o] Error 1
>
>do you think you can help me guys???

Well, it seems to me that, since you didn't include
sys/version.h yourself, it must be a standard include,
in which case, removing the -nostdinc might fix
it (granted, it might cause other problems as well...
that's why I use C/Asm for OS-Dev

Jeff

[Guest]

>On 2002-05-28 13:06:51, krillzip wrote:
>gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
>In file included from kernel.cpp:1:
>c:/djgpp/lib/gcc-lib/djgpp/3.04/djgpp.ver:1:25: No include path in which to find sys/version.h
>make.exe: *** [kernel.o] Error 1
>
>do you think you can help me guys???

DJGPP wants to include <sys/version.h> in every source file. If you use -nostdinc then
it won't find it. You have two options: either,

a) add -I/path/to/standard/includes to the command line
b) make your own sys/version.h and add its directory using -I/path/to/custom/includes

[Guest]

>On 2002-05-28 19:46:11, Anonymous wrote:
>>On 2002-05-28 13:06:51, krillzip wrote:
>>gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r

I would use -c instead of -r

>>In file included from kernel.cpp:1:
>>c:/djgpp/lib/gcc-lib/djgpp/3.04/djgpp.ver:1:25: No include path in which to find sys/version.h

To me, this looks like a bug in DJGPP.

I compiled with GCC 2.95.2 and got a different error from the linker:

kernel.o(.text+0x6c):kernel.cpp: undefined reference to `___builtin_delete'
make.exe: *** [kernel] Error 1

>it won't find it. You have two options: either,
>
>a) add -I/path/to/standard/includes to the command line
>b) make your own sys/version.h and add its directory using -I/path/to/custom/includes

c) downgrade to GCC 2.95.2

[krillzip]

>On 2002-05-28 13:25:17, J. Weeks wrote:
>>Makefile:
>>kernel : kernel.o
>> ld -nostdlib -nostdinc -fno-builtin -fno-exceptions -o kernel.bin -e main -oformat binary -Ttext 0x00100000 kernel.o
>>
>>kernel.o : kernel.cpp
>> gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
>>
>>Error:
>>
>>gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
>>In file included from kernel.cpp:1:
>>c:/djgpp/lib/gcc-lib/djgpp/3.04/djgpp.ver:1:25: No include path in which to find sys/version.h
>>make.exe: *** [kernel.o] Error 1
>>
>>do you think you can help me guys???
>
>Well, it seems to me that, since you didn't include
>sys/version.h yourself, it must be a standard include,
>in which case, removing the -nostdinc might fix
>it (granted, it might cause other problems as well...
>that's why I use C/Asm for OS-Dev
>
>Jeff

How do I know which files is standard includes??
have any idea???

[krillzip]

>On 2002-05-28 19:46:11, Anonymous wrote:
>>On 2002-05-28 13:06:51, krillzip wrote:
>>gcc -ffreestanding -nostdlib -nostdinc -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -r
>>In file included from kernel.cpp:1:
>>c:/djgpp/lib/gcc-lib/djgpp/3.04/djgpp.ver:1:25: No include path in which to find sys/version.h
>>make.exe: *** [kernel.o] Error 1
>>
>>do you think you can help me guys???
>
>DJGPP wants to include <sys/version.h> in every source file. If you use -nostdinc then
>it won't find it. You have two options: either,
>
>a) add -I/path/to/standard/includes to the command line
>b) make your own sys/version.h and add its directory using -I/path/to/custom/includes

I changed the Makefile to this:

kernel.bin : kernel.o
ld -nostdlib -fno-builtin -fno-exceptions -o kernel.bin -e main -oformat binary -Ttext 0x00100000 kernel.o

kernel.o : kernel.cpp
gcc -ffreestanding -nostdlib -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -c

And got this error:

E:\demo>make
gcc -ffreestanding -nostdlib -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -c
ld -nostdlib -fno-builtin -fno-exceptions -o kernel.bin -e main -oformat binary -Ttext 0x00100000 kernel.o
C:\DJGPP\BIN/ld.exe: cannot open binary: No such file or directory (ENOENT)
make.exe: *** [kernel] Error 1

[J. Weeks]

>How do I know which files is standard includes??
>have any idea???

Short of looking through all the docs, I'm not
sure, unfortunately. Under Linux, there's an
include directory:
/usr/lib/gcc-lib/$SYS-$LINUX-$VENDOR/$VERSION/include

That might contain some or all of them, but
off-hand, I really don't know.

Interestingly enough, I don't even have a
sys/version.h file.

You might want to email DJ Delorie...?

Jeff

[Guest]

>On 2002-05-29 12:21:37, krillzip wrote:
>And got this error:
>
>E:\demo>make
>gcc -ffreestanding -nostdlib -fno-builtin -fno-rtti -fno-exceptions kernel.cpp -c
>ld -nostdlib -fno-builtin -fno-exceptions -o kernel.bin -e main -oformat binary -Ttext 0x00100000 kernel.o
>C:\DJGPP\BIN/ld.exe: cannot open binary: No such file or directory (ENOENT)
>make.exe: *** [kernel] Error 1

You missed an equals sign between -oformat and binary. You need to write -oformat=binary instead.

[krillzip]

I took a look at it and the sys/version.h file was not
at the location spicified by the path instead it was in the standard
include directory C:\djgpp\include\sys\version. It included only some
mdefines

[krillzip]

I used -oformat=binary, and got a very strange output, it was in the format coff-go32-exe. instead I tried to use strip command and succeeded to convert to
binary it worked.