[fpc-devel] Solaris and binutils 2.22 break fpc linking and workaround

[Pierre Free Pascal]

On the VM I have access to:

pierre at fpcOpenSolaris:~$ gld --help | grep -i emul
  -m EMULATION                Set emulation
  -V                          Print version and emulation information
gld: supported emulations: elf_i386_ldso elf_i386 elf_x86_64
gld: emulation specific options:
pierre at fpcOpenSolaris:~$
pierre at fpcOpenSolaris:~$ gld --version
GNU ld (GNU Binutils) 2.19
Copyright 2007 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) a later
version.
This program has absolutely no warranty.

This is pretty bad...
2.19 is not that old, and it doesn't even know about
elf_x86_64_sol2 emulation...
I tested it by manually changing elf_x86_64 into elf_x86_64_sol2
in a ppas.sh script generated with -s option...

Until now, we always managed to avoid
parsing the output of a 'ld --version'
to adapt the command line, but here I have no idea 
how we could do it without something like that :(

Pierre Muller

> -----Message d'origine-----
> De : fpc-devel-bounces at lists.freepascal.org [mailto:fpc-devel-
> bounces at lists.freepascal.org] De la part de Helmut Hartl
> Envoyé : mardi 20 novembre 2012 14:52
> À : FPC developers' list
> Objet : [fpc-devel] Solaris and binutils 2.22 break fpc linking and
> workaround
> 
> Hi,
> 
> While building under SmartOS in a buildzone
> (IllumOS, former OpenSolaris) i have the problem that with
> binutils 2.22 the fpc generated linker script line in ppas.sh
> 
> /opt/local/bin/gld -melf_x86_64    -s -L. -o my_program link.res
> 
> is not working anymore. Because the only targets the new binutils 2.22
> support on solaris are elf_x86_64_sol2 and elf_i386_sol2.
> 
> Manually linking with: (after compiling with -Cn)
> 
> $/opt/local/bin/gld -melf_x86_64_sol2 -s -L. -o fpmake_packages link.res
> 
> is working!
> 
> Others have similar problems on gentoo:
> http://archives.gentoo.org/gentoo-
> alt/msg_a4641a1c17ce5f66a05c6440dd5cfc87.xml
> 
> 
> The problem is that on SmartOS the build machines and packages default
> to gcc47 with binutils 2.22.
> 
> I "fixed" it for me by compiling the compiler only on Openindiana 151a7
> (older binutils) with the following  applied trivial patch, and copying
> the resulting compiler(s) (32/64) bit to the
> target system. A full build for a 32 bit and a 64 bit fpc went well.
> 
> --- ./systems/t_sunos.pas.bak   2012-08-27 12:24:46.000000000 +0200
> +++ ./systems/t_sunos.pas       2012-11-04 05:59:23.399713956 +0100
> @@ -143,12 +143,12 @@
>   }
>   {$ifdef x86_64}
>   const
> -  gld = 'gld -m elf_x86_64 ';
> +  gld = 'gld -m elf_x86_64_sol2 ';
>     solaris_ld = '/usr/bin/ld -64 ';
>   {$endif}
>   {$ifdef i386}
>   const
> -  gld = 'gld ';
> +  gld = 'gld -m elf_i386_sol2 ';
>     solaris_ld = '/usr/bin/ld ';
>   {$endif }
>   {$ifdef sparc}
> 
> 
> What are the options to fix this properly ?
> I did not manage to get it working with the existing comand line
> options.I think it is needed to influence the -m option which fpc
> generates in "t_sunos", depending on an switch stating the usage of
> binutils greater than
> a certain version.
> 
> helmut
> _______________________________________________
> fpc-devel maillist  -  fpc-devel at lists.freepascal.org
> http://lists.freepascal.org/mailman/listinfo/fpc-devel