flat binary

[engine252]

i use the djgpp compiler just a while but how can i make
the compiler compile to a flat binary file? ???

[PlayOS]

Just compile your file, then use objcopy to strip the header(s).

Like this:

gcc -c file.c -o file.o
objcopy -O binary file.o file.bin

That -O is O for October not Zero.

You must also make sure that you file does not rely on any external variables or functions, or otherwise the flat binary file will not work.

Hope this helps.

[Tim]

You must also make sure that you file does not rely on any external variables or functions, or otherwise the flat binary file will not work.

That's because you forgot to link it.

gcc -c file1.c -o file1.o
gcc -c file2.c -o file2.o
ld -o file.out file1.o file2.o
objcopy -O binary file.out file.bin

[PlayOS]

::)

[engine252]

isn't there a good ide out there that take care of all that linking and stuff???

[Tim]

Sure, plenty. Visual Studio is my favourite.

[Tom]

I will be making a IDE...and someone else here will....I think it is "M@rtin12345"

[engine252]

can visual studio outpu binary files and is it possibel to create a OS system dispite the fact you may only create windows software with it.

[Tom]

Nope....only win32 bins...but the ide can make the files you type up.

[engine252]

if somebody made a good ide for djgpp please let me know if you make the ide please make sure there is good support for outputting binary files ;D

[Tom]

I'm working on it now...but first...I need to download DGJPP

[whyme_t]

Textpad is a good win32 ide You can add programs to run as commands with keyboard shortcuts. So ctrl+1 could run nasm, ctrl+2 could run gcc, ctrl+3 could run ld. etc. Add you can use $File and $FileDir as parameters to the programs.

You can also view hex files, dos, ansi, unix, etc, etc.

www.textpad.com

[Schol-R-LEA]

isn't there a good ide out there that take care of all that linking and stuff???

The Emacs C and C++ modes have a preset compile command that runs "make -k" by default. You'd still have to write a Makefile, but given the kinds of things that can be done automatically by [tt]make[/tt](1), this is a Good Thing. You can go far beyond just compiling with a single step that way.

[Tim]

Nope....only win32 bins...but the ide can make the files you type up.

No, the linker emits Portable Executable files, which Windows happens to use, as do ReactOS, Mobius, and various loaders. My point is: VC++ isn't tied to Windows.