MIPSR6: mips-img-elf mips-img-linux-gnu triplets and vendor updates

gcc/

	* config.gcc: Support mips*-img-linux* and mips*-img-elf*.
	* config/mips/mti-linux.h: Support mips32r6 as being the default arch.
	* config/mips/t-img-elf: New.
	* config/mips/t-img-linux: New.

gcc/testsuite/

	* gcc.target/mips/pr37362.c: Skip for mips-img-elf.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@218975 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 76 insertions, 1 deletions

diff --git a/gcc/config/mips/mti-linux.h b/gcc/config/mips/mti-linux.h
index 98d6582b198..5761ab749c4 100644
--- a/gcc/config/mips/mti-linux.h
+++ b/gcc/config/mips/mti-linux.h
@@ -19,8 +19,15 @@ along with GCC; see the file COPYING3.  If not see
 
 /* This target is a multilib target, specify the sysroot paths.  */
 #undef SYSROOT_SUFFIX_SPEC
+#if MIPS_ISA_DEFAULT == 33 /* mips32r2 is the default */
 #define SYSROOT_SUFFIX_SPEC \
-    "%{mips32:/mips32}%{mips64:/mips64}%{mips64r2:/mips64r2}%{mips16:/mips16}%{mmicromips:/micromips}%{mabi=64:/64}%{mel|EL:/el}%{msoft-float:/sof}%{mnan=2008:/nan2008}"
+    "%{mips32:/mips32}%{mips64:/mips64}%{mips64r2:/mips64r2}%{mips32r6:/mips32r6}%{mips64r6:/mips64r6}%{mips16:/mips16}%{mmicromips:/micromips}%{mabi=64:/64}%{mel|EL:/el}%{msoft-float:/sof}%{!mips32r6:%{!mips64r6:%{mnan=2008:/nan2008}}}"
+#elif MIPS_ISA_DEFAULT == 37 /* mips32r6 is the default */
+#define SYSROOT_SUFFIX_SPEC \
+    "%{mips32:/mips32}%{mips64:/mips64}%{mips32r2:/mips32r2}%{mips64r2:/mips64r2}%{mips64r6:/mips64r6}%{mips16:/mips16}%{mmicromips:/micromips}%{mabi=64:/64}%{mel|EL:/el}%{msoft-float:/sof}%{!mips32r6:%{!mips64r6:%{mnan=2008:/nan2008}}}"
+#else /* Unexpected default ISA.  */
+#error No SYSROOT_SUFFIX_SPEC exists for this default ISA
+#endif
 
 #undef DRIVER_SELF_SPECS
 #define DRIVER_SELF_SPECS						\
diff --git a/gcc/config/mips/t-img-elf b/gcc/config/mips/t-img-elf
new file mode 100644
index 00000000000..cc5dabbc075
--- /dev/null
+++ b/gcc/config/mips/t-img-elf
@@ -0,0 +1,38 @@
+# Copyright (C) 2014 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/>.
+
+# The default build is mips32r6, hard-float big-endian.
+# A multilib for mips32r6+LE
+# A multilib for mips64r6
+# A multilib for mips64r6+LE
+# A multilib for mips32r6+LE+singlefloat+shortdouble
+
+MULTILIB_OPTIONS = mips64r6 mabi=64 EL msoft-float/msingle-float fshort-double
+MULTILIB_DIRNAMES = mips64r6 64 el sof sgl short
+MULTILIB_MATCHES = EL=mel EB=meb
+
+# Don't build 64r6 with single-float
+MULTILIB_EXCEPTIONS += mips64r6/*msingle-float*
+MULTILIB_EXCEPTIONS += mips64r6/*fshort-double*
+
+MULTILIB_EXCEPTIONS += mabi=64*
+MULTILIB_EXCEPTIONS += msingle-float*
+MULTILIB_EXCEPTIONS += *msingle-float
+MULTILIB_EXCEPTIONS += fshort-double
+MULTILIB_EXCEPTIONS += EL/fshort-double
+MULTILIB_EXCEPTIONS += *msoft-float/fshort-double
diff --git a/gcc/config/mips/t-img-linux b/gcc/config/mips/t-img-linux
new file mode 100644
index 00000000000..5dbfbe45ef7
--- /dev/null
+++ b/gcc/config/mips/t-img-linux
@@ -0,0 +1,30 @@
+# Copyright (C) 2014 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/>.
+
+# The default build is mips32r6, hard-float big-endian.  Add mips64r6,
+# 64-bit ABI and little-endian variations.
+
+MULTILIB_OPTIONS = mips64r6 mabi=64 EL
+MULTILIB_DIRNAMES = mips64r6 64 el
+MULTILIB_MATCHES = EL=mel EB=meb
+
+# The 64 bit ABI is not supported on the mips32r6 architecture.
+# Because mips32r6 is the default we can't use that flag to trigger
+# the exception so we check for mabi=64 with no specific mips
+# architecture flag instead.
+MULTILIB_EXCEPTIONS += mabi=64*