[PATCH v4 1/2] MIPS: support mips*64 as CPU and gnuabi64 as ABI

[Richard Sandiford]

YunQiang Su <yunqiang.su@cipunited.com> writes:
> For MIPS64r6 ports, Debian as an example, `mipsisa64r6el` is
> used as the cpu name in triple.
> Let's recognize them by `mips*64*(el)`.
>
> For 64bit Ports, like Debian's mips64el and mips64r6el ports,
> `gnuabi64` is used as the abi section.
> Let's use N64 abi by default for the triple with gnuabi64.
> ---
>  bfd/config.bfd                                     | 14 ++++++++++++--
>  .../testsuite/binutils-all/mips/mips-note-2-n32.d  |  1 +
>  gas/configure                                      |  5 ++++-
>  gas/configure.ac                                   |  5 ++++-
>  gold/configure.tgt                                 | 14 ++++++++++++++
>  ld/configure.tgt                                   | 12 ++++++++++--
>  6 files changed, 45 insertions(+), 6 deletions(-)

OK, thanks.

Please send a message to admin-requests@ to extend your write access
to binutils-gdb (cc:ing me).

Richard

> diff --git a/bfd/config.bfd b/bfd/config.bfd
> index 7af481048db..1e4bea191dd 100644
> --- a/bfd/config.bfd
> +++ b/bfd/config.bfd
> @@ -941,11 +941,21 @@ case "${targ}" in
>      targ_defvec=mips_elf32_be_vec
>      targ_selvecs="mips_elf32_le_vec mips_elf64_be_vec mips_elf64_le_vec mips_ecoff_be_vec mips_ecoff_le_vec"
>      ;;
> -  mips64*el-*-linux*)
> +  mips*64*el-*-linux*-gnuabi64)
> +    targ_defvec=mips_elf64_trad_le_vec
> +    targ_selvecs="mips_elf32_ntrad_be_vec mips_elf32_ntrad_le_vec mips_elf32_trad_be_vec mips_elf32_trad_le_vec mips_elf64_trad_be_vec"
> +    want64=true
> +    ;;
> +  mips*64*-*-linux*-gnuabi64)
> +    targ_defvec=mips_elf64_trad_be_vec
> +    targ_selvecs="mips_elf32_ntrad_be_vec mips_elf32_ntrad_le_vec mips_elf32_trad_be_vec mips_elf32_trad_le_vec mips_elf64_trad_le_vec"
> +    want64=true
> +    ;;
> +  mips*64*el-*-linux*)
>      targ_defvec=mips_elf32_ntrad_le_vec
>      targ_selvecs="mips_elf32_ntrad_be_vec mips_elf32_trad_le_vec mips_elf32_trad_be_vec mips_elf64_trad_le_vec mips_elf64_trad_be_vec"
>      ;;
> -  mips64*-*-linux*)
> +  mips*64*-*-linux*)
>      targ_defvec=mips_elf32_ntrad_be_vec
>      targ_selvecs="mips_elf32_ntrad_le_vec mips_elf32_trad_be_vec mips_elf32_trad_le_vec mips_elf64_trad_be_vec mips_elf64_trad_le_vec"
>      ;;
> diff --git a/binutils/testsuite/binutils-all/mips/mips-note-2-n32.d b/binutils/testsuite/binutils-all/mips/mips-note-2-n32.d
> index c2a581858ed..5e24e7a115e 100644
> --- a/binutils/testsuite/binutils-all/mips/mips-note-2-n32.d
> +++ b/binutils/testsuite/binutils-all/mips/mips-note-2-n32.d
> @@ -1,4 +1,5 @@
>  #PROG: objcopy
> +#as: -n32
>  #readelf: --notes --wide
>  #objcopy: --merge-notes
>  #name: MIPS merge notes section (n32)
> diff --git a/gas/configure b/gas/configure
> index b56836998ef..868f4a911a9 100755
> --- a/gas/configure
> +++ b/gas/configure
> @@ -12223,7 +12223,10 @@ _ACEOF
>  	esac
>  	# Decide which ABI to target by default.
>  	case ${target} in
> -	  mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
> +	  mips*64*-linux-gnuabi64)
> +	    mips_default_abi=N64_ABI
> +	    ;;
> +	  mips*64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
>  	  | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
>  	    mips_default_abi=N32_ABI
>  	    ;;
> diff --git a/gas/configure.ac b/gas/configure.ac
> index 6a68fd7c4e6..03728ffce4d 100644
> --- a/gas/configure.ac
> +++ b/gas/configure.ac
> @@ -392,7 +392,10 @@ changequote([,])dnl
>  	esac
>  	# Decide which ABI to target by default.
>  	case ${target} in
> -	  mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
> +	  mips*64*-linux-gnuabi64)
> +	    mips_default_abi=N64_ABI
> +	    ;;
> +	  mips*64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
>  	  | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
>  	    mips_default_abi=N32_ABI
>  	    ;;
> diff --git a/gold/configure.tgt b/gold/configure.tgt
> index 4b54e08d27f..ef47ce079f1 100644
> --- a/gold/configure.tgt
> +++ b/gold/configure.tgt
> @@ -153,6 +153,13 @@ aarch64*-*)
>   targ_big_endian=false
>   targ_extra_big_endian=true
>   ;;
> +mips*64*el*-*-*|mips*64*le*-*-*)
> + targ_obj=mips
> + targ_machine=EM_MIPS_RS3_LE
> + targ_size=64
> + targ_big_endian=false
> + targ_extra_big_endian=true
> + ;;
>  mips*el*-*-*|mips*le*-*-*)
>   targ_obj=mips
>   targ_machine=EM_MIPS_RS3_LE
> @@ -160,6 +167,13 @@ mips*el*-*-*|mips*le*-*-*)
>   targ_big_endian=false
>   targ_extra_big_endian=true
>   ;;
> +mips*64*-*-*)
> + targ_obj=mips
> + targ_machine=EM_MIPS
> + targ_size=64
> + targ_big_endian=true
> + targ_extra_big_endian=false
> + ;;
>  mips*-*-*)
>   targ_obj=mips
>   targ_machine=EM_MIPS
> diff --git a/ld/configure.tgt b/ld/configure.tgt
> index 34c9d67c365..4a71f679e29 100644
> --- a/ld/configure.tgt
> +++ b/ld/configure.tgt
> @@ -580,11 +580,19 @@ mips*-*-vxworks*)	targ_emul=elf32ebmipvxworks
>  			;;
>  mips*-*-windiss)	targ_emul=elf32mipswindiss
>  			;;
> -mips64*el-*-linux-*)	targ_emul=elf32ltsmipn32
> +mips*64*el-*-linux-gnuabi64)	targ_emul=elf64ltsmip
> +			targ_extra_emuls="elf32btsmipn32 elf32ltsmipn32 elf32ltsmip elf32btsmip elf64btsmip"
> +			targ_extra_libpath=$targ_extra_emuls
> +			;;
> +mips*64*el-*-linux-*)	targ_emul=elf32ltsmipn32
>  			targ_extra_emuls="elf32btsmipn32 elf32ltsmip elf32btsmip elf64ltsmip elf64btsmip"
>  			targ_extra_libpath=$targ_extra_emuls
>  			;;
> -mips64*-*-linux-*)	targ_emul=elf32btsmipn32
> +mips*64*-*-linux-gnuabi64)	targ_emul=elf64btsmip
> +			targ_extra_emuls="elf32btsmipn32 elf32ltsmipn32 elf32btsmip elf32ltsmip elf64ltsmip"
> +			targ_extra_libpath=$targ_extra_emuls
> +			;;
> +mips*64*-*-linux-*)	targ_emul=elf32btsmipn32
>  			targ_extra_emuls="elf32ltsmipn32 elf32btsmip elf32ltsmip elf64btsmip elf64ltsmip"
>  			targ_extra_libpath=$targ_extra_emuls
>  			;;