flac dev - Feb 2005 - A couple of points about flac 1.1.1 on ppc/linux/altivec

--- Luca Barbato <lu_zero@gentoo.org> wrote:
> Josh Coalson wrote:
> > since I don't know how to resolve this, in current CVS I have
> > checked in a system where there are src/libFLAC/ppc/as and
> > src/libFLAC/ppc/gas selected by configure.  I have also checked
> > in as many patches as I could make sense of (the cpu.c detection
> > stuff and the configure.in stuff).  can you guys take a look at
> > current CVS and help me get something that will build both ways?
> > after that it will be much easier for me to start looking at
> > correctness.
> There is a problem: the AC_CHECK_PROGS() just tests existence and I'm
> 
> afraid both osx and linux/ppc have both as and gas executables.
> running the configure as is will always turn on the "as" path.
> --with-gas doesn't work to force it.
> Probably a version check could help.
how about this logic:

if cpu is ppc
  if as exists
    if as is apple version
      use as
    else if as is gnu version
      use as to assemble but src/libFLAC/ppc/gas directory
    else
      no asm
  else if gas exists
    use gas
  else
    no asm

?

could you also send me version strings for your versions of
as/gas for whatever combination of PPC,OS that you have?

Josh



__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com

Josh Coalson wrote:
> since I don't know how to resolve this, in current CVS I have
> checked in a system where there are src/libFLAC/ppc/as and
> src/libFLAC/ppc/gas selected by configure.  I have also checked
> in as many patches as I could make sense of (the cpu.c detection
> stuff and the configure.in stuff).  can you guys take a look at
> current CVS and help me get something that will build both ways?
> after that it will be much easier for me to start looking at
> correctness.
There is a problem: the AC_CHECK_PROGS() just tests existence and I'm 
afraid both osx and linux/ppc have both as and gas executables.
running the configure as is will always turn on the "as" path.
--with-gas doesn't work to force it.
Probably a version check could help.

If you need access to a ppc linux box I could provide you an account on 
the pegII box I have at home, it isn't alwasy reachable since I didn't 
managed to set up a dyndns yet so you need to contact me (irc on freenode).

Regards

lu



-- 
Luca Barbato
Developer (Gentoo/linux)	/	Operational Manager (Gentoo/ppc)
Gentoo Linux				http://www.gentoo.org/~lu_zero

Josh Coalson wrote:
> --- Luca Barbato <lu_zero@gentoo.org> wrote:
> 
>>Josh Coalson wrote:
>>
>>>since I don't know how to resolve this, in current CVS I have
>>>checked in a system where there are src/libFLAC/ppc/as and
>>>src/libFLAC/ppc/gas selected by configure.  I have also checked
>>>in as many patches as I could make sense of (the cpu.c detection
>>>stuff and the configure.in stuff).  can you guys take a look at
>>>current CVS and help me get something that will build both ways?
>>>after that it will be much easier for me to start looking at
>>>correctness.
>>
>>There is a problem: the AC_CHECK_PROGS() just tests existence and
I'm
>>
>>afraid both osx and linux/ppc have both as and gas executables.
>>running the configure as is will always turn on the "as" path.
>>--with-gas doesn't work to force it.
>>Probably a version check could help.
> 
> 
> how about this logic:
> 
> if cpu is ppc
>   if as exists
>     if as is apple version
>       use as
>     else if as is gnu version
>       use as to assemble but src/libFLAC/ppc/gas directory
>     else
>       no asm
>   else if gas exists
>     use gas
>   else
>     no asm
> 
Seems working to me
> ?
> 
> could you also send me version strings for your versions of
> as/gas for whatever combination of PPC,OS that you have?
as (gnu as) is provided by binutils.

as --version
GNU assembler 2.15.90.0.3 20040415
Copyright 2002 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License.  This program has absolutely no warranty.
This assembler was configured for a target of `powerpc-unknown-linux-gnu'.

I hope it helps

lu

-- 

Luca Barbato

Gentoo/linux Developer		Gentoo/PPC Operational Manager
http://dev.gentoo.org/~lu_zero