[jhc] Garbage collector on OS X

[John Meacham]

On Sun, Jul 11, 2010 at 11:10:29PM +0100, Max Bolingbroke wrote:
> On 11 July 2010 22:35, John Meacham <john at repetae.net> wrote:
> > Hi, I know there is an issue on some vesions of OSX due to the lack of
> > posix_memalign, but this appears to be a different thing.
> 
> Yep, I'm on 10.6 which apparently has memalign.
> 
> > Can you send
> > me the output of 'uname -a' and 'gcc --version' and what version of OSX
> > you are using? thanks.
> 
> Same as in my reply on -cafe: OS X 10.6.4 and:
> 
> $ uname -a && gcc --version
> Darwin REDACTED.ac.uk 10.4.0 Darwin Kernel Version 10.4.0: Fri Apr 23
> 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386
> i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5659)
> Copyright (C) 2007 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Hi, out of curiousity, could you try editing the .c file and adding 

#define _start start
#define _end end

after the header file includes and before the 

extern void _start,_end;

declarations then try recompiling it? then if that doesn't work, try 

#define _start __start
#define _end __end 

The command you need to run to recompile the .c file will be embedded in
the file near the top of it, or the utils/recomp.prl script will pull it
out and recompile a .c generated by jhc. (useful when debugging the
rts).

I know that OSX uses different rules for linking and whether underscores
are prepended, but I forget the details.

    John


-- 
John Meacham - ⑆repetae.net⑆john⑈ - http://notanumber.net/