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Re: [PATCH] Add support for x86_64-*-gnu-* targets (binutils)


From: Samuel Thibault
Subject: Re: [PATCH] Add support for x86_64-*-gnu-* targets (binutils)
Date: Wed, 21 Dec 2022 12:23:03 +0100
User-agent: NeoMutt/20170609 (1.8.3)

Hello,

Flavio Cruz, le lun. 19 déc. 2022 17:00:30 -0500, a ecrit:
> Sending out this patch for comments. If it looks reasonable, will try to
> submit it upstream.

Does it build? I had assumed it'd take more than that to get binutils
building, but if it does work fine, then yes please submit, after fixing
the comments below.

Also, could you perhaps Cc Helmut Grohne <helmut@subdivi.de>? He will be
very interested in including the patches to prepare bootstrapping the
hurd-amd64 Debian port :D

(see https://salsa.debian.org/helmutg/rebootstrap/ and
https://jenkins.debian.net/view/rebootstrap/ )

>  bfd/config.bfd   | 5 +++++
>  ld/configure.tgt | 5 +++++
>  2 files changed, 10 insertions(+)
> 
> diff --git a/bfd/config.bfd b/bfd/config.bfd
> index 0bc27fdce9..3a1c9f716e 100644
> --- a/bfd/config.bfd
> +++ b/bfd/config.bfd
> @@ -701,6 +701,11 @@ case "${targ}" in
>      targ_selvecs="i386_elf32_fbsd_vec iamcu_elf32_vec i386_coff_vec 
> i386_pei_vec x86_64_pe_vec x86_64_pei_vec i386_elf32_vec x86_64_elf64_vec"
>      want64=true
>      ;;
> +  x86_64-*-gnu*)
> +    targ_defvec=x86_64_elf64_vec
> +    targ_selvecs="i386_elf32_vec iamcu_elf32_vec x86_64_elf32_vec"
> +    want64=true
> +    ;;
>    x86_64-*-haiku*)
>      targ_defvec=x86_64_elf64_vec
>      targ_selvecs="i386_elf32_vec"

This needs to go *after* the *-linux-* case, otherwise the linux-gnu
triplet will get caught but *-gnu*. And similarly for kfreebsd*-gnu
etc., i.e. all potential gnu-on-something targets. Perhaps better just
put it at the end of the x86_64 targets, after redox.

> diff --git a/ld/configure.tgt b/ld/configure.tgt
> index 741b246f67..d5f1278800 100644
> --- a/ld/configure.tgt
> +++ b/ld/configure.tgt
> @@ -995,6 +995,11 @@ x86_64-*-rdos*)          targ_emul=elf64rdos
>                       ;;
>  x86_64-*-cloudabi*)  targ_emul=elf_x86_64_cloudabi
>                       ;;
> +x86_64-*-gnu*)       targ_emul=elf_x86_64
> +                     targ_extra_emuls="elf32_x86_64 elf_iamcu elf_i386"
> +                     targ_extra_libpath="elf_i386 elf32_x86_64"
> +                     tdir_elf_i386=`echo ${targ_alias} | sed -e 
> 's/x86_64/i386/'`
> +                     ;;
>  x86_64-*-haiku*)     targ_emul=elf_x86_64_haiku
>                       targ_extra_emuls="elf_x86_64 elf_i386_haiku"
>                       ;;

Ditto

Samuel



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