[PATCH] Recognize arc64

[Vineet Gupta]

This paves way for setting up arc64 software ecosystem.

$ make check
cd testsuite && bash config-guess.sh && rm uname
PASS: config.guess checks (135 tests)
cd testsuite && bash config-sub.sh
PASS: config.sub checks (852 tests)
PASS: config.sub idempotency checks (789 tests)
PASS: config.sub canonicalise each config.guess testcase (135 tests)

* config.guess (arc64:Linux:*:*): Recognize.
* config.sub (arc64): Likewise.
* doc/config.guess.1: Regenerate.
* doc/config.sub.1: Likewise.
* testsuite/config-guess.data: Add test cases for arc64.
* testsuite/config-sub.data (arc64, arc*-elf): Add test cases.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 config.guess                | 4 ++--
 config.sub                  | 4 ++--
 doc/config.guess.1          | 2 +-
 doc/config.sub.1            | 2 +-
 testsuite/config-guess.data | 1 +
 testsuite/config-sub.data   | 5 +++++
 6 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/config.guess b/config.guess
index 1972fda8eb05..a6646ed28258 100755
--- a/config.guess
+++ b/config.guess
@@ -2,7 +2,7 @@
 # Attempt to guess a canonical system name.
 #   Copyright 1992-2021 Free Software Foundation, Inc.
 
-timestamp='2021-01-25'
+timestamp='2021-04-21'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -949,7 +949,7 @@ EOF
        if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
        echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
-    arc:Linux:*:* | arceb:Linux:*:*)
+    arc:Linux:*:* | arceb:Linux:*:* | arc64:Linux:*:*)
        echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
        exit ;;
     arm*:Linux:*:*)
diff --git a/config.sub b/config.sub
index 7f7d0b055ac5..d70247c08d12 100755
--- a/config.sub
+++ b/config.sub
@@ -2,7 +2,7 @@
 # Configuration validation subroutine script.
 #   Copyright 1992-2021 Free Software Foundation, Inc.
 
-timestamp='2021-03-10'
+timestamp='2021-04-21'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -1165,7 +1165,7 @@ case $cpu-$vendor in
                        | alphapca5[67] | alpha64pca5[67] \
                        | am33_2.0 \
                        | amdgcn \
-                       | arc | arceb \
+                       | arc | arceb | arc64 \
                        | arm | arm[lb]e | arme[lb] | armv* \
                        | avr | avr32 \
                        | asmjs \
diff --git a/doc/config.guess.1 b/doc/config.guess.1
index 75fbb236fd68..f79f1c5f10c5 100644
--- a/doc/config.guess.1
+++ b/doc/config.guess.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
-.TH CONFIG.GUESS "1" "January 2021" "GNU config.guess (2021-01-25)" "User 
Commands"
+.TH CONFIG.GUESS "1" "January 2021" "GNU config.guess (2021-04-21)" "User 
Commands"
 .SH NAME
 config.guess \- guess the build system triplet
 .SH SYNOPSIS
diff --git a/doc/config.sub.1 b/doc/config.sub.1
index 317c8c47a180..9d52cebf58d0 100644
--- a/doc/config.sub.1
+++ b/doc/config.sub.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
-.TH CONFIG.SUB "1" "March 2021" "GNU config.sub (2021-03-10)" "User Commands"
+.TH CONFIG.SUB "1" "March 2021" "GNU config.sub (2021-04-21)" "User Commands"
 .SH NAME
 config.sub \- validate and canonicalize a configuration triplet
 .SH SYNOPSIS
diff --git a/testsuite/config-guess.data b/testsuite/config-guess.data
index f240e9ce61df..73908abb4e06 100644
--- a/testsuite/config-guess.data
+++ b/testsuite/config-guess.data
@@ -35,6 +35,7 @@ amd64 | 7.0_RC1 | NetBSD | ignored | x86_64 | 
x86_64-unknown-netbsd7.0
 amd64 | 7.2.1 | Isilon OneFS | ignored | ignored | x86_64-unknown-onefs
 arc | ignored | Linux | ignored | ignored | arc-unknown-linux-gnu
 arceb | ignored | Linux | ignored | ignored | arceb-unknown-linux-gnu
+arc64 | ignored | Linux | ignored | ignored | arc64-unknown-linux-gnu
 arm | 12.0 | FreeBSD | ignored | armv6 | armv6-unknown-freebsd12.0-gnueabihf
 arm | 12.0 | FreeBSD | ignored | armv7 | armv7-unknown-freebsd12.0-gnueabihf
 arm | 12.1 | AROS | ignored | armv7 | arm-unknown-aros
diff --git a/testsuite/config-sub.data b/testsuite/config-sub.data
index 101a4c45ec39..0a59eaf1cec7 100644
--- a/testsuite/config-sub.data
+++ b/testsuite/config-sub.data
@@ -59,9 +59,14 @@ amix                                         
m68k-unknown-sysv4
 apollo68                                       m68k-apollo-sysv
 apollo68bsd                                    m68k-apollo-bsd
 arc                                            arc-unknown-none
+arc-elf                                                arc-unknown-elf
 arc-linux                                      arc-unknown-linux-gnu
 arceb                                          arceb-unknown-none
+arceb-elf                                      arceb-unknown-elf
 arceb-linux                                    arceb-unknown-linux-gnu
+arc64                                          arc64-unknown-none
+arc64-elf                                      arc64-unknown-elf
+arc64-linux                                    arc64-unknown-linux-gnu
 arm                                            arm-unknown-none
 arm-cegcc                                      arm-unknown-cegcc
 arm-coff                                       arm-unknown-coff
-- 
2.25.1