go32-rtems.h, [...] (subtarget_switches): Added -mrtems as a switch.

        * i386/go32-rtems.h, i386/rtems.h, i960/rtems.h,
        m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
        sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
        * i960/i960.h: Added SUBTARGET_SWITCHES macro.
        * rs6000/sysv4.h (extra_subtarget_switches): Added new
        macro EXTRA_SUBTARGET_SWITCHES.
        * configure.in (sh*-*-rtems*): New target.
        * sh/rtems.h: New file.
        * sh/sh.h: Added SUBTARGET_SWITCHES macro.
        * configure: Rebuilt.

From-SVN: r15006

15 files changed, 106 insertions, 6 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a337377..783e5ec 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+Mon Sep  1 08:04:07 1997  Joel Sherrill (joel@OARcorp.com)
+
+	* i386/go32-rtems.h, i386/rtems.h, i960/rtems.h, 
+	m68k/rtems.h, mips/rtems64.h, pa/rtems.h, rs6000/rtems.h,
+	sparc/rtems.h (subtarget_switches): Added -mrtems as a switch.
+	* i960/i960.h: Added SUBTARGET_SWITCHES macro.
+	* rs6000/sysv4.h (extra_subtarget_switches): Added new
+	macro EXTRA_SUBTARGET_SWITCHES.
+	* configure.in (sh*-*-rtems*): New target.
+	* sh/rtems.h: New file.
+	* sh/sh.h: Added SUBTARGET_SWITCHES macro.
+	* configure: Rebuilt.
+
 Sat Aug 30 22:54:26 1997  Jim Wilson  <wilson@cygnus.com>
 
 	* unroll.c (calculate_giv_inc): Handle increment with code PLUS.
diff --git a/gcc/config/i386/go32-rtems.h b/gcc/config/i386/go32-rtems.h
index 282465b..d2be80b 100644
--- a/gcc/config/i386/go32-rtems.h
+++ b/gcc/config/i386/go32-rtems.h
@@ -30,3 +30,10 @@ Boston, MA 02111-1307, USA.  */
 #endif
 #define CPP_PREDEFINES "-Dunix -Di386 -DGO32 -DMSDOS -Drtems -D__rtems__ \
   -Asystem(unix) -Asystem(msdos) -Acpu(i386) -Amachine(i386) -Asystem(rtems)"
+
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of i386/go32-rtems.h */
+
diff --git a/gcc/config/i386/rtems.h b/gcc/config/i386/rtems.h
index 99c817a..ea30a67 100644
--- a/gcc/config/i386/rtems.h
+++ b/gcc/config/i386/rtems.h
@@ -28,4 +28,8 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-Di386 -Drtems -D__rtems__ \
    -Asystem(rtems) -Acpu(i386) -Amachine(i386)"
 
-/* end of i386-rtems.h */
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of i386/rtems.h */
diff --git a/gcc/config/i960/i960.h b/gcc/config/i960/i960.h
index 34dc397..6ef1e12 100644
--- a/gcc/config/i960/i960.h
+++ b/gcc/config/i960/i960.h
@@ -269,6 +269,7 @@ extern int target_flags;
     {"no-old-align", -(TARGET_FLAG_OLD_ALIGN|TARGET_FLAG_STRICT_ALIGN)}, \
     {"link-relax", 0},					\
     {"no-link-relax", 0},				\
+    SUBTARGET_SWITCHES                                                  \
     { "", TARGET_DEFAULT}}
 
 /* Override conflicting target switch options.
diff --git a/gcc/config/i960/rtems.h b/gcc/config/i960/rtems.h
index 9263027..af5a26f 100644
--- a/gcc/config/i960/rtems.h
+++ b/gcc/config/i960/rtems.h
@@ -28,4 +28,8 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-Di960 -Di80960 -DI960 -DI80960 -Drtems -D__rtems__ \
    -Asystem(rtems) -Acpu(i960) -Amachine(i960)"
 
-/* end of i960-rtems.h */
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of i960/rtems.h */
diff --git a/gcc/config/m68k/rtems.h b/gcc/config/m68k/rtems.h
index 8bb921d..817f05f 100644
--- a/gcc/config/m68k/rtems.h
+++ b/gcc/config/m68k/rtems.h
@@ -27,4 +27,8 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-Dmc68000 -Drtems -D__rtems__ \
    -Asystem(rtems) -Acpu(mc68000) -Acpu(m68k) -Amachine(m68k)"
 
-/* end of m68k-rtems.h */
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of m68k/rtems.h */
diff --git a/gcc/config/mips/rtems64.h b/gcc/config/mips/rtems64.h
index d4d8ac0..a9547c8 100644
--- a/gcc/config/mips/rtems64.h
+++ b/gcc/config/mips/rtems64.h
@@ -28,4 +28,8 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-Dmips -DMIPSEB -DR4000 -D_mips -D_MIPSEB -D_R4000 \
    -Drtems -D__rtems__ -Asystem(rtems)"
 
-/* end of rtems64.h */
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of mips/rtems64.h */
diff --git a/gcc/config/pa/rtems.h b/gcc/config/pa/rtems.h
index 0eba886..784524d 100644
--- a/gcc/config/pa/rtems.h
+++ b/gcc/config/pa/rtems.h
@@ -28,3 +28,5 @@ Boston, MA 02111-1307, USA.  */
 #undef  SUBTARGET_SWITCHES
 #define SUBTARGET_SWITCHES \
   { "rtems", 0 },
+
+/* end of pa/rtems.h */
diff --git a/gcc/config/rs6000/rtems.h b/gcc/config/rs6000/rtems.h
index b63b44c..0bcec52 100644
--- a/gcc/config/rs6000/rtems.h
+++ b/gcc/config/rs6000/rtems.h
@@ -28,6 +28,10 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-DPPC -Drtems -D__rtems__ \
    -Asystem(rtems) -Acpu(powerpc) -Amachine(powerpc)"
 
-/* rtems is in the SUBTARGET_SWITCHES in rs6000/sysv4.h */
+/* extend the SUBTARGET_SWITCHES in rs6000/sysv4.h */
+
+#undef  EXTRA_SUBTARGET_SWITCHES
+#define EXTRA_SUBTARGET_SWITCHES \
+  { "rtems", 0 },
 
 /* end of powerpc-rtems.h */
diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
index 294debf..44dd686 100644
--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
@@ -95,8 +95,12 @@ extern enum rs6000_sdata_type rs6000_sdata;
   { "emb",		 0 },						\
   { "solaris-cclib",	 0 },						\
   { "shlib",		 0 },						\
+  EXTRA_SUBTARGET_SWITCHES                                              \
   { "newlib",		 0 },
 
+/* This is meant to be redefined in the host dependent files */
+#define EXTRA_SUBTARGET_SWITCHES
+
 /* Default ABI to use */
 #define RS6000_ABI_NAME "sysv"
 
diff --git a/gcc/config/sh/rtems.h b/gcc/config/sh/rtems.h
new file mode 100644
index 0000000..5cbdf9b
--- /dev/null
+++ b/gcc/config/sh/rtems.h
@@ -0,0 +1,35 @@
+/* Definitions for rtems targetting a SH using elf.
+
+   Copyright (C) 1996 Free Software Foundation, Inc.
+   Contributed by Joel Sherrill (joel@OARcorp.com).
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "sh/elf.h"
+
+/* Specify predefined symbols in preprocessor.  */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-D__sh__ -D__ELF__ -Drtems -D__rtems__ \
+  -Asystem(rtems) -Acpu(sh) -Amachine(sh)"
+
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of sparc/rtems.h */
diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h
index ce5e26a..5210fdc 100644
--- a/gcc/config/sh/sh.h
+++ b/gcc/config/sh/sh.h
@@ -144,9 +144,13 @@ extern int target_flags;
   {"padstruct", PADSTRUCT_BIT},    		\
   {"relax",	RELAX_BIT},			\
   {"space", 	SPACE_BIT},			\
+  SUBTARGET_SWITCHES                            \
   {"",   	TARGET_DEFAULT} 		\
 }
 
+/* This are meant to be redefined in the host dependent files */
+#define SUBTARGET_SWITCHES
+
 #define TARGET_DEFAULT  (0)
 
 #define PRESERVE_DEATH_INFO_REGNO_P(regno) (TARGET_RELAX || optimize)
diff --git a/gcc/config/sparc/rtems.h b/gcc/config/sparc/rtems.h
index 5e5ea14..5b18619 100644
--- a/gcc/config/sparc/rtems.h
+++ b/gcc/config/sparc/rtems.h
@@ -28,4 +28,8 @@ Boston, MA 02111-1307, USA.  */
 #define CPP_PREDEFINES "-Dsparc -D__GCC_NEW_VARARGS__ -Drtems -D__rtems__ \
   -Asystem(rtems) -Acpu(sparc) -Amachine(sparc)"
 
-/* end of sparc-rtems.h */
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES \
+  { "rtems", 0 },
+
+/* end of sparc/rtems.h */
diff --git a/gcc/configure b/gcc/configure
index fcf7502..4444518 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -3667,6 +3667,11 @@ for machine in $build $host $target; do
 		tm_file=sh/elf.h
 		float_format=sh
 		;;
+	sh-*-rtems*)
+		tmake_file="sh/t-sh t-rtems"
+		tm_file=sh/rtems.h
+		float_format=sh
+		;;
 	sh-*-*)
 		float_format=sh
 		;;
diff --git a/gcc/configure.in b/gcc/configure.in
index c99c7be..7027f31 100644
--- a/gcc/configure.in
+++ b/gcc/configure.in
@@ -2286,6 +2286,11 @@ for machine in $build $host $target; do
 		tm_file=sh/elf.h
 		float_format=sh
 		;;
+	sh-*-rtems*)
+		tmake_file="sh/t-sh t-rtems"
+		tm_file=sh/rtems.h
+		float_format=sh
+		;;
 	sh-*-*)
 		float_format=sh
 		;;