openbsd.h: New file.

	* config/alpha/openbsd.h: New file.
	* config/alpha/xm-openbsd.h: New file.

From-SVN: r25283

gcc/ChangeLog

 Thu Feb 18 13:15:56 1999  Marc Espie <espie@cvs.openbsd.org>
 
+	* alpha/openbsd.h: New file.
+	* alpha/xm-openbsd.h: New file.
 	* sparc/openbsd.h: New file.
 	* sparc/xm-openbsd.h: New file.
 	* m68k/openbsd.h: New file.

gcc/config/alpha/openbsd.h

+/* Configuration file for an alpha OpenBSD target.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+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.  */
+
+/* We settle for little endian for now.  */
+#define TARGET_ENDIAN_DEFAULT 0
+
+#include <alpha/alpha.h>
+
+#define OBSD_NO_DYNAMIC_LIBRARIES
+#define OBSD_HAS_DECLARE_FUNCTION_NAME
+#define OBSD_HAS_DECLARE_FUNCTION_SIZE
+#define OBSD_HAS_DECLARE_OBJECT
+
+/* alpha ecoff supports only weak aliases, see below.  */
+#define ASM_WEAKEN_LABEL(FILE,NAME) ASM_OUTPUT_WEAK_ALIAS (FILE,NAME,0)
+
+#include <openbsd.h>
+
+/* Controlling the compilation driver.  */
+
+/* alpha needs __start.  */
+#undef LINK_SPEC
+#define LINK_SPEC \
+  "%{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp %{assert*}"
+
+/* run-time target specifications */
+#define CPP_PREDEFINES "-D__unix__ -D__ANSI_COMPAT -Asystem(unix) \
+-D__OpenBSD__ -D__alpha__ -D__alpha"
+
+/* Layout of source language data types.  */
+
+/* This must agree with <machine/ansi.h> */
+#undef SIZE_TYPE
+#define SIZE_TYPE "long unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "long int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+
+#define LOCAL_LABEL_PREFIX	"."
+
+/* We don't have an init section yet.  */
+#undef HAS_INIT_SECTION
+
+/* collect2 support (assembler format: macros for initialization).  */
+
+/* Don't tell collect2 we use COFF as we don't have (yet ?) a dynamic ld
+   library with the proper functions to handle this -> collect2 will
+   default to using nm.  */
+#undef OBJECT_FORMAT_COFF
+#undef EXTENDED_COFF
+
+/* Assembler format: exception region output.  */
+
+/* All configurations that don't use elf must be explicit about not using
+   dwarf unwind information. egcs doesn't try too hard to check internal
+   configuration files...  */
+#ifdef INCOMING_RETURN_ADDR_RTX
+#undef DWARF2_UNWIND_INFO
+#define DWARF2_UNWIND_INFO 0
+#endif
+
+/* Assembler format: file framework.  */
+
+/* Taken from alpha/osf.h. This used to be common to all alpha
+   configurations, but elf has departed from it.
+   Check alpha/alpha.h, alpha/osf.h for it when egcs is upgraded.  */
+#ifndef ASM_FILE_START
+#define ASM_FILE_START(FILE)					\
+{								\
+  alpha_write_verstamp (FILE);					\
+  fprintf (FILE, "\t.set noreorder\n");				\
+  fprintf (FILE, "\t.set volatile\n");                          \
+  fprintf (FILE, "\t.set noat\n");				\
+  if (TARGET_SUPPORT_ARCH)					\
+    fprintf (FILE, "\t.arch %s\n",				\
+             alpha_cpu == PROCESSOR_EV6 ? "ev6"			\
+	     : (alpha_cpu == PROCESSOR_EV5			\
+		? (TARGET_MAX ? "pca56" : TARGET_BWX ? "ev56" : "ev5") \
+		: "ev4"));					\
+								\
+  ASM_OUTPUT_SOURCE_FILENAME (FILE, main_input_filename);	\
+}
+#endif
+
+/* Assembler format: label output.  */
+
+#define ASM_OUTPUT_WEAK_ALIAS(FILE,NAME,VALUE)	\
+ do {						\
+  fputs ("\t.weakext\t", FILE);			\
+  assemble_name (FILE, NAME);			\
+  if (VALUE)					\
+    {						\
+      fputs (" , ", FILE);			\
+      assemble_name (FILE, VALUE);		\
+    }						\
+  fputc ('\n', FILE);				\
+ } while (0)
+
+

gcc/config/alpha/xm-openbsd.h

+/* Configuration file for an host running alpha OpenBSD.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+
+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 <xm-openbsd.h>
+#include <alpha/xm-alpha.h>
+