gcc on non-POSIX os?
Ian Lance Taylor
ian@airs.com
Sun Nov 13 04:59:00 GMT 2005
Marco Zanon <info@marcozanon.com> writes:
> Would it be possible to port GCC to a non-POSIX operating system and
> make it work?
Sure. For example, gcc runs on MS-DOS.
> Or: Suppose I created an operating system kernel. What would I have to
> implement in order for gcc to run on top of it? Would a POSIX-compliant
> libc be necessary?
gcc is a complicated program, but in operating systems terms it is
pretty close to being a filter which reads one file and writes
another. It does not require much in the way of operating system
support. It does need most of the ISO C library (fopen, printf,
malloc, etc.). It also needs to be able to start another process, and
it needs to be able to read a directory. There may be a couple of
other things here and there.
Ian
More information about the Gcc-help
mailing list