How does one compile 64-bit executables on HP-UX PA-RISC?

[Dr. David Kirkby]

On 07/30/10 02:42 PM, Jeff Law wrote:
> On 07/30/10 06:07, Dr. David Kirkby wrote:
>> I have an HP C3600 workstation
>>
>> http://www.b2net.co.uk/hp/hp_visualize_c3600_workstation.htm
>>
>> which is fitted with 552 MHz PA-8600 PA-RISC CPU (64-bit) and 8 GB RAM.
>>
>> If I use gcc -m64, I get an error.
>>
>> drkirkby@hpbox:~$ gcc -m64 test.c
>> cc1: error: unrecognized command line option "-m64"
>>
>> Can anyone tell me how to build 64-bit binaries with gcc on this machine?
> GCC for the PA isn't runtime switchable between 32 and 64 bit binaries.

Thanks - that's a bit annoying. I'm used to using -m64 on Solaris.

> ie, however GCC was initially configured is the only way it'll generate
> code on the PA.
>
> What does gcc -v report?
>
> Jeff
>

There are two versions on my machine.

drkirkby@hpbox:~$ gcc -v
Using built-in specs.
Target: hppa1.1-hp-hpux11.11
Configured with: /tmp/gcc-4.3.3.tar.gz/gcc-4.3.3/configure 
--host=hppa1.1-hp-hpux11.11 --target=hppa1.1-hp-hpux11.11 
--build=hppa1.1-hp-hpux11.11 --prefix=/opt/hp-gcc-4.3.3 --with-gnu-as 
--without-gnu-ld --enable-threads=posix --enable-languages=c,c++ 
--with-gmp=/proj/opensrc/be/hppa1.1-hp-hpux11.11 
--with-mpfr=/proj/opensrc/be/hppa1.1-hp-hpux11.11
Thread model: posix
gcc version 4.3.3 (GCC)
drkirkby@hpbox:~$

Someone said the HP install is buggy, and produced this one. So I do have two 
installs of gcc.

drkirkby@hpbox:~$ gcc -v
Using built-in specs.
Target: hppa2.0w-hp-hpux11.11
Configured with: ../gcc-4.3.4/configure --with-gnu-as 
--with-as=/home/dclarke/local/bin/as --without-gnu-ld --with-ld=/usr/bin/ld 
--enable-threads=posix --enable-nls --prefix=/home/dclarke/local --enable-shared 
--enable-multilib --with-included-gettext 
--with-libiconv-prefix=/home/dclarke/local --with-system-zlib 
--with-gmp=/home/dclarke/local --with-mpfr=/home/dclarke/local 
--enable-languages=c,c++,fortran,objc --enable-bootstrap
Thread model: posix
gcc version 4.3.4 (GCC)

I thought the latter, with the hppa2.0w-hp-hpux11.11 might have created 64-bit 
binaries, but still sizeof(long) == 4, so I assume not.



Dave