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SubC ported to Freebsd/armv6 (Raspi)

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  SubC ported to Freebsd/armv6 (Raspi) "Nils M Holm" <nmh@t3x.org> - 2014-02-16 12:51 +0100
    Re: SubC ported to Freebsd/armv6 (Raspi) Kaz Kylheku <kaz@kylheku.com> - 2014-02-17 00:45 +0000
    Re: SubC ported to Freebsd/armv6 (Raspi) alexfrunews@gmail.com - 2014-03-06 23:12 -0800

#1094 — SubC ported to Freebsd/armv6 (Raspi)

SubC is a fast and simple compiler for a clean subset of the
C programming language. Its code is in the public domain. It
can compile itself and passes gcc -Wall -pedantic.

SubC generates small, statically linked executables (Hello World
using printf() is less than 10 KB in size on a 386-based machine).

I have recently retargeted the compiler to the armv6 processor
and added runtime support for FreeBSD/arm, so if you are looking
for a small and fast C subset compiler for the Raspi, feel free
to give it a try! :-)

If you intend to port the crt0 module to Linux, feel free to
ask for assistance!

--
Nils M Holm  < n m h @ t 3 x . o r g >  www.t3x.org

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#1095

On 2014-02-16, Nils M Holm <nmh@t3x.org> wrote:
> SubC is a fast and simple compiler for a clean subset of the
> C programming language. Its code is in the public domain. It
> can compile itself and passes gcc -Wall -pedantic.

A source-source translator could possibly transform a larger subset of the C
language to SubC.

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#1135

On Sunday, February 16, 2014 3:51:02 AM UTC-8, Nils M Holm wrote:
> SubC is a fast and simple compiler for a clean subset of the
> C programming language. Its code is in the public domain. It
> can compile itself and passes gcc -Wall -pedantic.
>
> SubC generates small, statically linked executables (Hello World
> using printf() is less than 10 KB in size on a 386-based machine).
>
> I have recently retargeted the compiler to the armv6 processor
> and added runtime support for FreeBSD/arm, so if you are looking
> for a small and fast C subset compiler for the Raspi, feel free
> to give it a try! :-)
>
> If you intend to port the crt0 module to Linux, feel free to
> ask for assistance!

Good job. You may be interested in my Smaller C:
https://github.com/alexfru/SmallerC

Btw, it looks like you've got an lvalue bug here:

void *_va_arg(void **ap) {
	return * ((void **) *ap)--;
}

The result of a cast is an rvalue and not an lvalue. -- requires an lvalue.

http://ideone.com/EGih2s (gcc C99 "strict" mode)

It may be worth upping the warning level.

Alex

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