From f70c0dcba4d9878723d4c65b6fef6cc0d1641924 Mon Sep 17 00:00:00 2001
From: Darius Rad <darius@bluespec.com>
Date: Sun, 8 Feb 2015 16:43:59 -0500
Subject: [PATCH 1/2] glibc: Combine wordsize.h for 32 and 64 bit.

This allows for sharing headers between RV32 and RV64 compilers, which
in turn supports a combined toolchain for both targets, with
appropriate duplicate builds of glibc.
---
 .../sysdeps/riscv/{rv64 => }/bits/wordsize.h  |  4 ++++
 glibc/sysdeps/riscv/rv32/bits/wordsize.h      | 19 -------------------
 2 files changed, 4 insertions(+), 19 deletions(-)
 rename glibc/sysdeps/riscv/{rv64 => }/bits/wordsize.h (94%)
 delete mode 100644 glibc/sysdeps/riscv/rv32/bits/wordsize.h

diff --git a/glibc/sysdeps/riscv/rv64/bits/wordsize.h b/glibc/sysdeps/riscv/bits/wordsize.h
similarity index 94%
rename from glibc/sysdeps/riscv/rv64/bits/wordsize.h
rename to glibc/sysdeps/riscv/bits/wordsize.h
index 1f643137..67bb48f5 100644
--- a/glibc/sysdeps/riscv/rv64/bits/wordsize.h
+++ b/glibc/sysdeps/riscv/bits/wordsize.h
@@ -16,5 +16,9 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
+#if defined __riscv64
 #define __WORDSIZE 64
 #define __WORDSIZE_TIME64_COMPAT32 1
+#else
+#define __WORDSIZE 32
+#endif
diff --git a/glibc/sysdeps/riscv/rv32/bits/wordsize.h b/glibc/sysdeps/riscv/rv32/bits/wordsize.h
deleted file mode 100644
index 184080c5..00000000
--- a/glibc/sysdeps/riscv/rv32/bits/wordsize.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-#define __WORDSIZE 32

From ca9c71c460dae5747dcbf353eb84b16d2d96d6fb Mon Sep 17 00:00:00 2001
From: Darius Rad <darius@bluespec.com>
Date: Sun, 8 Feb 2015 16:50:27 -0500
Subject: [PATCH 2/2] glibc: Allow the prefix riscv- as an alias for riscv64-.

This permits avoiding a misleading architecture prefix when building a
toolchain that support both RV32 and RV64.  This makes glibc
consistent with binutils and gcc with respect to the riscv- target.
The target riscv- is identical to riscv64-, i.e., RV64 is the default.
---
 glibc/sysdeps/riscv/preconfigure | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/glibc/sysdeps/riscv/preconfigure b/glibc/sysdeps/riscv/preconfigure
index 4e8364ab..5863d2dc 100644
--- a/glibc/sysdeps/riscv/preconfigure
+++ b/glibc/sysdeps/riscv/preconfigure
@@ -1,5 +1,8 @@
 case "$machine" in
-riscv64*)
+riscv32*)	base_machine=riscv machine=riscv/rv32
+		machine=$machine/$config_machine
+		;;
+riscv*)
 		case "$CC $CFLAGS $CPPFLAGS " in
 		*" -m32 "*) riscv_cc_abi=32 ;;
 		*" -m64 "*) riscv_cc_abi=64 ;;
@@ -22,7 +25,4 @@ riscv64*)
 		  CPPFLAGS="$CPPFLAGS -m$riscv_config_abi"
 		fi
 		;;
-riscv*)		base_machine=riscv machine=riscv/rv32
-		machine=$machine/$config_machine
-		;;
 esac