We used to build baremetal (AKA Elf32) multilibbed toolchains for years
now but never made that for Linux targets since there were problems with
uClibc n multilib setup. Now with help of Crosstool-NG it is finally
possible to create uClibc-based multilibbed toolchains and so we add
relevant CPUs for multilib in case of configuration for "arc*-*-linux*".
This will be essentially useful for glibc-based multilibbbed toolchains
in the future.
gcc/
2018-05-16 Alexey Brodkin <abrod...@synopsys.com>
* config.gcc: Add arc/t-multilib-linux to tmake_file for
arc*-*-linux*.
* config/arc/t-multilib-linux: Specify MULTILIB_OPTIONS and
MULTILIB_DIRNAMES
---
gcc/config.gcc | 2 +-
gcc/config/arc/t-multilib-linux | 25 +++++++++++++++++++++++++
2 files changed, 26 insertions(+), 1 deletion(-)
create mode 100644 gcc/config/arc/t-multilib-linux
diff --git a/gcc/config.gcc b/gcc/config.gcc
index a5defb0f0058..8e038a72f613 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1059,7 +1059,7 @@ arc*-*-elf*)
;;
arc*-*-linux*)
tm_file="arc/arc-arch.h dbxelf.h elfos.h gnu-user.h linux.h
linux-android.h glibc-stdint.h arc/linux.h ${tm_file}"
- tmake_file="${tmake_file} arc/t-arc"
+ tmake_file="${tmake_file} arc/t-multilib-linux arc/t-arc"
extra_gcc_objs="driver-arc.o"
if test "x$with_cpu" != x; then
tm_defines="${tm_defines} TARGET_CPU_BUILD=PROCESSOR_$with_cpu"
diff --git a/gcc/config/arc/t-multilib-linux b/gcc/config/arc/t-multilib-linux
new file mode 100644
index 000000000000..f357cfc3f926
--- /dev/null
+++ b/gcc/config/arc/t-multilib-linux
@@ -0,0 +1,25 @@
+# Copyright (C) 2018 Free Software Foundation, Inc.
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation; either version 3, or (at your option) any later
+# version.
+#
+# GCC 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 General Public License
+# for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+MULTILIB_OPTIONS =
mcpu=hs/mcpu=archs/mcpu=hs38/mcpu=hs38_linux/mcpu=arc700/mcpu=nps400
+
+MULTILIB_DIRNAMES = hs archs hs38 hs38_linux arc700 nps400
+
+# Aliases:
+MULTILIB_MATCHES += mcpu?arc700=mA7
+MULTILIB_MATCHES += mcpu?arc700=mARC700
--
2.17.0
