[binutils-gdb] MIPS: support mips*64 as CPU and gnuabi64 as ABI

[YunQiang Su <syq@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=32f1c80375ebe8ad25d9805ee5889f0006c51e59

commit 32f1c80375ebe8ad25d9805ee5889f0006c51e59
Author: YunQiang Su <yunqiang.su@cipunited.com>
Date:   Tue Apr 18 21:27:04 2023 +0800

    MIPS: support mips*64 as CPU and gnuabi64 as ABI
    
    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.

Diff:
---
 bfd/config.bfd                                         | 14 ++++++++++++--
 binutils/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(-)

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
 			;;