3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[simon]

building 3.0 on AIX fails for me:

	running mknumeric_limits
	/home/simon/src/gcc-3.0/objdir/gcc/xgcc -B/home/simon/src/gcc-3.0/objdir/gcc/ -B
	/opt/gcc-3.0/powerpc-ibm-aix4.3.3.0/bin/ -B/opt/gcc-3.0/powerpc-ibm-aix4.3.3.0/l
	ib/ -isystem /opt/gcc-3.0/powerpc-ibm-aix4.3.3.0/include  -maix64 -I.  -I/home/s
	imon/src/gcc-3.0/objdir/powerpc-ibm-aix4.3.3.0/ppc64/libstdc++-v3/include -DHAVE
	_CONFIG_H -fno-exceptions     -o /home/simon/src/gcc-3.0/objdir/powerpc-ibm-aix4
	.3.3.0/ppc64/libstdc++-v3/src/gen-num-limits ../../../../libstdc++-v3/src/gen-nu
	m-limits.cc
	Could not load program /home/simon/src/gcc-3.0/objdir/powerpc-ibm-aix4.3.3.0/ppc
	64/libstdc++-v3/src/gen-num-limits:
	Cannot run a 64-bit program on a 32-bit machine.
	gen-num-limits failed to execute, exiting.
	mknumeric_limits failed to execute properly: exiting
	gmake[1]: *** [configure-target-libstdc++-v3] Error 1
	gmake[1]: Leaving directory `/home/simon/src/gcc-3.0/objdir'
	gmake: *** [bootstrap-lean] Error 2

I presume the problem is the -maix64, but I am not sure how to change that...

here is some relevant information about the build:

config:
	 #This directory was configured as follows:
	 ../configure --with-gcc-version-trigger=/home/simon/src/gcc-3.0/gcc/version.c --
	 host=powerpc-ibm-aix4.3.3.0 --prefix=/opt/gcc-3.0 --norecursion 

build command:
	  $ nohup gmake CFLAGS='-O' LIBCFLAGS='-g -O2' LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap-lean > make_out 2>&1 &


Any ideas?  I searched the archives and found a few messages about similar 32/64bit issues on AIX, but the fix 
was not clear to me.

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[David Edelsohn]

>>>>> simon  writes:

Simon> building 3.0 on AIX fails for me:
Simon> running mknumeric_limits

Simon> Any ideas?  I searched the archives and found a few messages about
Simon> similar 32/64bit issues on AIX, but the fix was not clear to me.

	Yes, this is a known problem.

	The workaround is to configure GCC with --disable-aix64.  The
unfortunate byproduct is that disables 64-bit multilibs for all languages
when the real problem is that V3 unnecessarily queries with a program.  V3
aix64 actually would build correctly if you manually create the 64-bit
limits files and create the stamp file.

	Plesae go tell the libstdc++ developers that they should not
calculate limits by running a program during the build.  I have proposed a
patch, but have not heard any feedback from the V3 developers.

David

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alexandre Oliva]

On Jun 20, 2001, simon <sk2alexa@math.uwaterloo.ca> wrote:

> I presume the problem is the -maix64, but I am not sure how to change that...

configure [...] --disable-aix64

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alex Buell]

On Wed, 20 Jun 2001, David Edelsohn wrote:

> Simon> building 3.0 on AIX fails for me:
> Simon> running mknumeric_limits

Why didn't anyone respond to my post about this failing on sparc32-linux a
while ago?

-- 
Alex.

http://www.tahallah.demon.co.uk

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alexandre Oliva]

On Jun 21, 2001, Alex Buell <alex.buell@tahallah.demon.co.uk> wrote:

> Why didn't anyone respond to my post about this failing on sparc32-linux a
> while ago?

Because no one had anything to suggest?  Note that David's suggestion
won't help on GNU/Linux/sparc, the switch is specific to AIX 4.3 and
above running on ppc.

Have I already asked you which version of binutils you were using for
the bootstrap?

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alex Buell]

On 21 Jun 2001, Alexandre Oliva wrote:

> Because no one had anything to suggest?  Note that David's suggestion
> won't help on GNU/Linux/sparc, the switch is specific to AIX 4.3 and
> above running on ppc.

OK, I do apologise; a bad case of impatience.

> Have I already asked you which version of binutils you were using for
> the bootstrap?

I'm currently using 2.10.1. I think there's a 2.11.1 out but it's been
withdrawn.

-- 
Alex.

http://www.tahallah.demon.co.uk

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alexandre Oliva]

On Jun 21, 2001, Alex Buell <alex.buell@tahallah.demon.co.uk> wrote:

>> Have I already asked you which version of binutils you were using for
>> the bootstrap?

> I'm currently using 2.10.1. I think there's a 2.11.1 out but it's been
> withdrawn.

Ha!  That must be it.  2.11.2 is out already. 

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alex Buell]

On 21 Jun 2001, Alexandre Oliva wrote:

> > I'm currently using 2.10.1. I think there's a 2.11.1 out but it's been
> > withdrawn.
>
> Ha!  That must be it.  2.11.2 is out already.

Downloaded and installed 2.11.2, did the bootstrap. It still fails at the
same place as before (gen-num-limits). What else should I need to look at?

-- 
Alex.

http://www.tahallah.demon.co.uk

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[Alex Buell]

On 21 Jun 2001, Alexandre Oliva wrote:

> Ha!  That must be it.  2.11.2 is out already.

Now that I have binutils 2.11.2 installed, I was able to run
gen-num-limits in gdb 4.18. Here's what I found:

        static const bool is_iec559 = true;
        static const bool is_bounded = true;
        static const bool is_modulo = true;


Program received signal SIGILL, Illegal instruction.
0x500d6324 in .udiv () at soinit.c:59
59      soinit.c: No such file or directory.
(gdb)


-- 
Alex.

http://www.tahallah.demon.co.uk

Re: 3.0 build failure on AIX (32 vs 64bit issue in mknumeric_limits)

[David Edelsohn]

>>>>> Alex Buell writes:

Alex> Downloaded and installed 2.11.2, did the bootstrap. It still fails at the
Alex> same place as before (gen-num-limits). What else should I need to look at?

	gen-num-limits is run for ech multilib, so I assume that it is
failing in the "ppc64" directory, which is a known problem.  libstdc++-v3
configure is trying to run a 64-bit application on a 32-bit system.

	The workarounds are either: 1) configure gcc-3.0 with
--disable-aix64, or 2) manually create the 64-bit limits and stamp files
then restart the libstdc++-v3 build.

	The binutils-2.11.2 configuration for AIX 4.3.3 unfortunately
still contains a number of bugs -- not show-stopper bugs.

David

[misleading subject - sorry!] Re: 3.0 build failure on AIX (32 vs64bit issue in mknumeric_limits)

[Alex Buell]

On Sun, 24 Jun 2001, David Edelsohn wrote:

> >>>>> Alex Buell writes:
> 	gen-num-limits is run for ech multilib, so I assume that it is
> failing in the "ppc64" directory, which is a known problem.  libstdc++-v3
> configure is trying to run a 64-bit application on a 32-bit system.

I am a total cretin. I did not realise that the subject line was
misleading. The problems I am experiencing are happening on my Sparc
Station 4, running Linux 2.2.19.  I think this changes things somewhat!

-- 
Hey, they *are* out to get you, but it's nothing personal.

http://www.tahallah.demon.co.uk