Re: [MiNT] gcc-4.2.2-mint-20080127

[Alan Hourihane <alanh@fairlite.demon.co.uk>]

On Sun, 2008-01-27 at 16:14 +0100, Vincent Rivière wrote:
> Hello.
> 
> I have just updated my patches for the binutils and GCC.
> They are available as usual:
> http://vincent.riviere.free.fr/soft/m68k-atari-mint/
> 
> Now all the tools displays the patch version when they are invoked with 
> --version. Keith, this would have helped you for finding your C++ problem !
> 
> I have removed the implicit usage of -fomit-frame-pointer when -O is 
> used. The GCC bug is still present, but it does not appear as long as 
> -O, -m68020 and -fomit-frame-pointer are not used together. So now Quake 
> works when compiled with -O3 and -m68060 ! I tried to enable the video 
> again, and that's incredible, it works perfectly on ARAnyM with FreeMiNT 
> ! It is very fast, probably about 25 fps, with the software renderer 
> (OpenGL is not used). I didn't enable the keyboard, so we can only look 
> at the demo. Maybe MiKRO will release a playable version compatible with 
> ARAnyM ?
> 
> Finally, I added the patches provided by MiKRO for compiling GCC 4.2.2 
> natively with GCC 2.95.3. I didn't include the patch for libstdc++-v3 
> about strtof() and strtold(), because it works well with the 
> cross-compiler, and I wasn't able to reproduce the problem natively 
> because of big memory problems. Of course, I will include it if it is 
> really necessary.
> 
> I also included the patch provided by Olivier for the makeinfo problem. 
> He has compiled the binutils on Fedora Core 8, where makeinfo 4.11 was 
> not considered >= 4.4.
> 
> So far, what are the remaining problems with GCC 4.2.2 ?
> 
> Keith, you said recently that the "thunk" problem was still here. Could 
> you tell me how to reproduce it ?
> 
> Alan, you reported having a lot of problems with the FreeMiNT kernel 
> (however it used to work fine), are they really related with my latest 
> patches ?

I'm just rebuilding everything from scratch and bumped into this now
compiling MiNTlib.....

m68k-atari-mint-gcc -Wall -g -pg -pipe -O2 -nostdinc -I../mintlib -I..
-I../include -I../mintlib -I../stdlib -I$(<../includepath)
-DHAVE_CONFIG_H -D_LIBC -D_REENTRANT -c ../mintlib/linea.c -o linea.o
../mintlib/linea.c: In function 'lineac':
../mintlib/linea.c:176: error: %a6 cannot be used in asm here

This is because -fomit-frame-pointer is not being used, I guess before,
it was implicit.

Alan.