Re: gcc-64 on HP-UX 11.00

["John David Anglin" <dave at hiauly1 dot hia dot nrc dot ca>]

> > Can you be more specific?  I think that once you get a good set of tools
> > installed you won't have any trouble building 64bit gcc.  This is not to
> 
> Then my tools are probably no good ;)

>From your comments below, I would say they are incorrectly installed.

> 
> > say that that there aren't lots of issues with hppa64 but I am not having
> > problems doing builds anymore.
> 
> But you might have /more/ GNU stuff installed in default locations than I h=
> ave.
> For example, in the configuration I'll show shortly, it barfs on unsatisfie=
> d
> symbol '__umoddi3', which can be found in libgcc.a, which I do not have
> installed in a default location, and since I'm building with HPc, it won't
> find it without hints. Now if I set LDFLAGS=3D"-L/usr/local/pa20_64/lib -lg=
> cc"

If you use HP cc, libgcc.a should not be needed.  It gets built in stage1
by ./xgcc and then installed with the compiler.

You need to select a prefix to install your 64-bit tools in (e.g., /opt/gnu64).
The prefix can be anywhere but I keep the 64-bit stuff separate from 32-bit
som stuff.  I build and install my 64-bit binutils tools to the same
directory and have /opt/gnu64/bin as the first component in PATH to ensure
that 64-bit tools are used when I do a 64-bit build.

You should not have to play with LDFLAGS to bootstrap the compiler.

Regarding tools, suggest using GNU make.  You should install a 64-bit
versions of binutils.  It may also be useful to build bash, bison, gawk,
texinfo, perl, sed, and possibly autoconf (2.13).  You can build these
with either the HP compiler or 32-bit gcc.

> where libgcc can be found in my situation, it is put *before* the libs, mak=
> ing
> the needed symbols unfindable, so I commented out LDFLAGS and put in
> LIBS=3D/usr/local/pa20_64/lib/libgcc.a
> 
> FYI when reading on, /usr/local/pa20_64 is a symlink to /wrk/pa20_64 becaus=
> e
>     that LV has more space to play with.
> 
> > > I've got
> > >=20
> > >	The latest HP-UX 11.00 with the latest patches
> > > 	The latest C compiler (B.11.11.04 HP C/ANSI C Compiler)
> > > 	Several ports of gcc
> > > 		3.0.4/32
> > > 		3.0.1/64
> > > 		3.0.2/64
> > > 	binutils-2.11.90/64
> > > 	binutils-2.12/64
> >=20
> > Here are my suggestions.  Use the latest binutils.  It has fixes that
> > affect hppa64.  Don't use 2.11.90.  Build it with the HP ANSI compiler
> > (ie, use "-Ae +DA2.0W" in your CFLAGS).  Gcc may miscompile the
> > linker causing it to dump core linking shared libraries.  Whether
> > this is still a problem, I'm not sure.
> 
> I used
> --8<--- Conf-64
> #!/usr/bin/sh
> 
> export CONFIG_SITE=3D
> export CC=3Dcc

Change this to
export CC="cc -Ae +DA2.0W"

> export CFLAGS=3D"-Ae -O +DA2.0W"
> #export LDFLAGS=3D"-L/usr/local/pa20_64/lib -lgcc"
> export LIBS=3D/usr/local/pa20_64/lib/libgcc.a

Delete these.

> export PATH=3D.
> export PATH=3D$PATH"":/u/usr/merijn/bin/private:/u/usr/merijn/bin
> export PATH=3D$PATH"":/pro/local/bin:/pro/bin
> export PATH=3D$PATH"":/usr/bin:/usr/bin/X11:/opt/ansic/bin
> export PATH=3D$PATH"":/usr/sbin:/etc:/sbin:/usr/lib:/usr/ccs/bin:/opt/langt=
> ools/bin
> export PATH=3D$PATH"":/usr/contrib/bin:/usr/contrib/bin/X11:/opt/imake/bin
> 
> configure \
>     --prefix=3D/wrk/pa20_64 --with-local-prefix=3D/wrk/pa20_64 \
>     --disable-shared \
>     --disable-nls \
>     --enable-multilib \
>     --enable-threads

Use a modification of what I sent.  --with-local-prefix probably isn't
needed.  You don't need --enable-multilib or --enable-threads.  There
isn't any thread support yet and no multilibs.

> -->8---
> 

The patch below is incorrect.  The hppa2.0w-hp-hpux11* target is actually
the 32-bit som target on a 2.0w machine.  It shouldn't be changed to
64-bit.  Same for gcc config.

You want to configure binutils with something like

--host=hppa64-hp-hpux11.11 --prefix=/opt/gnu64 --disable-nls

If you are using a 11.00 system --host should be hppa64-hp-hpux11.00.  You
need to specify --host, or a complete set of --host, --build and --target
to do a 64-bit build.  The default guess is for 32-bit tools.

> But needed the followin patches:
> --8<--- binutils-2.12.diff
> --- binutils-2.12.org/configure.in	2002-03-08 20:45:10.000000000 +0100
> +++ binutils-2.12/configure.in	2002-04-05 13:17:26.000000000 +0200
> @@ -722,8 +722,10 @@
>    hppa*-*-*elf* | \
>    hppa*-*-linux-gnu* | \
>    hppa*-*-lites* | \
> +  hppa*2.0w*-*-* | \
>    hppa*64*-*-*)

[...]

> > These are the gcc configure options that I use:
> >=20
> > --host=3Dhppa64-hp-hpux11.11 --with-gnu-as --with-as=3D/opt/gnu64/bin/as
>  =20
>   That's a HP-UX 11i

Yes.  It works identically to 11.00.

>  =20
> > --with-gnu-ld --with-ld=3D/opt/gnu64/bin/ld --disable-nls --prefix=3D/opt=
> /gnu64
> 
> This is what I went for
> --8<--- Conf-64
> #!/usr/bin/sh
> 
> export CONFIG_SITE=3D
> export CC=3D"cc -Ae +DA2.0W"
> export PATH=3D.:/u/usr/merijn/bin/private:/u/usr/merijn/bin
> export PATH=3D$PATH"":/pro/local/bin:/pro/bin:/usr/bin:/usr/bin/X11
> export PATH=3D$PATH"":/opt/ansic/bin:/usr/ccs/bin:/opt/langtools/bin
> export PATH=3D$PATH"":/usr/lib:/usr/contrib/bin:/usr/contrib/bin/X11:/opt/i=
> make/bin
> export PATH=3D$PATH"":/wrk/pa20_64/bin:/wrk/GNUpro/bin

When you do a 64-bit build, make sure that the 64-bit tools are before
the 32-bit and HP tools.  Some have the same name so you want to be sure
that your using the correct tools.  The HP compiler knows how to find
its tools.

> 
> rm -rf obj
> mkdir obj
> cd obj
> =2E./src/configure \
>     --enable-languages=3Dgcc \
>     --prefix=3D/usr/local/pa20_64 --with-local-prefix=3D/usr/local/pa20_64 =
> \
>     --with-gnu-as \
>     --with-gnu-ld \
>     --disable-shared \
>     --disable-nls \
>     --enable-multilib \
>     --enable-threads \
>     --with-system-zlib
> 
> echo ""
> echo "Now start 'Build-64'"
> -->8---
> 

Again, the patch below is wrong and unnecessary.  You need to specify
--host properly.  I suggest removing --enable-multilib, --enable-threads
and --with-system-zlib.  The system zlib probably has the security bug.

>
> Of course after patchin with
> --8<---
> --- src/configure.in.org	2002-04-05 14:16:10.000000000 +0200
> +++ src/configure.in	2002-04-05 14:16:31.000000000 +0200
> @@ -284,6 +284,7 @@
>  # hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
>  # them automatically.
>  case "${host}" in
> +  hppa*2.0w*-*-hpux11* | \
>    hppa*64*-*-hpux11*)=09

[...]

> The build comes amazingly far, but core dumps like
> 
> echo "int xxy_us_dummy;" >tmp-dum.c
> =2E/xgcc -B./ -B/usr/local/pa20_64/hppa2.0w-hp-hpux11.00/bin/ -isystem /usr=
> /local/pa20_64/hppa2.0w-hp-hpux11.00/include -isystem /usr/local/pa20_64/hp=
> pa2.0w-hp-hpux11.00/sys-include -S tmp-dum.c
> cc1: internal error: Segmentation fault

> No core dump.
> 
> Should I go on?

Retry following my suggestions.  The important points are:

1)  Use a common prefix for your tools (e.g., /usr/local/pa20_64).
2)  Use --host=hppa64-hp-hpux11.00.
3)  Export CC="cc -Ae +DA2.0W" for your initial builds of binutils and gcc.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)