[PATCH] ARM RTEMS changes for GCC 4.6

Sebastian Huber sebastian.huber@embedded-brains.de
Fri Feb 22 15:41:00 GMT 2013


2013-02-22  Sebastian Huber <sebastian.huber@embedded-brains.de>

        * config.gcc (arm*-*-rtemself*): New.
        (arm*-*-rtems*): Removed.
        (arm*-*-eabi* | arm*-*-symbianelf*): Add (arm*-*-rtems*).
        * config/arm/rtems-eabi.h: New file.
        * config/arm/t-rtems-eabi: New file.
---
 gcc/config.gcc              |   16 ++++++++++------
 gcc/config/arm/rtems-eabi.h |   29 +++++++++++++++++++++++++++++
 gcc/config/arm/t-rtems-eabi |    8 ++++++++
 3 files changed, 47 insertions(+), 6 deletions(-)
 create mode 100644 gcc/config/arm/rtems-eabi.h
 create mode 100644 gcc/config/arm/t-rtems-eabi

diff --git a/gcc/config.gcc b/gcc/config.gcc
index fdbe321..35d502b 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -870,7 +870,12 @@ arm*-*-ecos-elf)
 	tmake_file="arm/t-arm arm/t-arm-elf"
 	tmake_file="${tmake_file} arm/t-arm-softfp soft-fp/t-softfp"
 	;;
-arm*-*-eabi* | arm*-*-symbianelf* )
+arm*-*-rtemself*)
+	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/rtems-elf.h rtems.h newlib-stdint.h"
+	tmake_file="arm/t-arm arm/t-arm-elf t-rtems arm/t-rtems"
+	tmake_file="${tmake_file} arm/t-arm-softfp soft-fp/t-softfp"
+	;;
+arm*-*-eabi* | arm*-*-symbianelf* | arm*-*-rtems*)
 	# The BPABI long long divmod functions return a 128-bit value in
 	# registers r0-r3.  Correctly modeling that requires the use of
 	# TImode.
@@ -885,6 +890,10 @@ arm*-*-eabi* | arm*-*-symbianelf* )
 	  tmake_file="${tmake_file} arm/t-bpabi"
 	  use_gcc_stdint=wrap
 	  ;;
+	arm*-*-rtems*)
+	  tm_file="${tm_file} rtems.h arm/rtems-eabi.h newlib-stdint.h"
+	  tmake_file="${tmake_file} arm/t-bpabi t-rtems arm/t-rtems-eabi"
+	  ;;
 	arm*-*-symbianelf*)
 	  tm_file="${tm_file} arm/symbian.h"
 	  # We do not include t-bpabi for Symbian OS because the system
@@ -895,11 +904,6 @@ arm*-*-eabi* | arm*-*-symbianelf* )
 	tm_file="${tm_file} arm/aout.h arm/arm.h"
 	tmake_file="${tmake_file} arm/t-arm-softfp soft-fp/t-softfp"
 	;;
-arm*-*-rtems*)
-	tm_file="dbxelf.h elfos.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h arm/rtems-elf.h rtems.h newlib-stdint.h"
-	tmake_file="arm/t-arm arm/t-arm-elf t-rtems arm/t-rtems"
-	tmake_file="${tmake_file} arm/t-arm-softfp soft-fp/t-softfp"
-	;;
 arm*-*-elf)
 	tm_file="dbxelf.h elfos.h newlib-stdint.h arm/unknown-elf.h arm/elf.h arm/aout.h arm/arm.h"
 	tmake_file="arm/t-arm arm/t-arm-elf"
diff --git a/gcc/config/arm/rtems-eabi.h b/gcc/config/arm/rtems-eabi.h
new file mode 100644
index 0000000..ced98a9
--- /dev/null
+++ b/gcc/config/arm/rtems-eabi.h
@@ -0,0 +1,29 @@
+/* Definitions for RTEMS based ARM systems using EABI.
+   Copyright (C) 2011 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/>.  */
+
+#define HAS_INIT_SECTION
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS()		\
+    do {					\
+	builtin_define ("__rtems__");		\
+	builtin_define ("__USE_INIT_FINI__");	\
+	builtin_assert ("system=rtems");	\
+	TARGET_BPABI_CPP_BUILTINS();    	\
+    } while (0)
diff --git a/gcc/config/arm/t-rtems-eabi b/gcc/config/arm/t-rtems-eabi
new file mode 100644
index 0000000..f0e714a
--- /dev/null
+++ b/gcc/config/arm/t-rtems-eabi
@@ -0,0 +1,8 @@
+# Custom RTEMS EABI multilibs
+
+MULTILIB_OPTIONS    = mthumb march=armv6-m/march=armv7/march=armv7-m
+MULTILIB_DIRNAMES   = thumb armv6-m armv7 armv7-m
+MULTILIB_EXCEPTIONS = march=armv6-m march=armv7 march=armv7-m
+MULTILIB_MATCHES    =
+MULTILIB_EXCLUSIONS =
+MULTILIB_OSDIRNAMES =
-- 
1.6.4.2



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