Delete files unused since openbsd 2 & 3 support was dropped.

	gcc/
	* config/i386/gstabs.h: Delete.
	* config/i386/openbsd.h, config/i386/t-openbsd: Likewise.

From-SVN: r250527

gcc/ChangeLog

+2017-07-25  Jim Wilson  <jim.wilson@linaro.org>
+
+	* config/i386/gstabs.h: Delete.
+	* config/i386/openbsd.h, config/i386/t-openbsd: Likewise.
+
 2017-07-25  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.c (ix86_decompose_address): Do not check for

gcc/config/i386/gstabs.h

-/* We do not want to output SDB debugging information.  */
-
-#undef SDB_DEBUGGING_INFO
-
-/* We want to output DBX debugging information.  */
-
-#define DBX_DEBUGGING_INFO 1

gcc/config/i386/openbsd.h

-/* Configuration for an OpenBSD i386 target.
-   Copyright (C) 1999-2017 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/>.  */
-
-
-/* This goes away when the math-emulator is fixed */
-#undef TARGET_SUBTARGET_DEFAULT
-#define TARGET_SUBTARGET_DEFAULT \
-  (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
-
-#define TARGET_OS_CPP_BUILTINS()		\
-  do						\
-    {						\
-	builtin_define ("__unix__");		\
-	builtin_define ("__OpenBSD__");		\
-	builtin_assert ("system=unix");		\
-	builtin_assert ("system=bsd");		\
-	builtin_assert ("system=OpenBSD");	\
-    }						\
-  while (0)
-
-/* Layout of source language data types.  */
-
-/* This must agree with <machine/ansi.h> */
-#undef SIZE_TYPE
-#define SIZE_TYPE "unsigned int"
-
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE "int"
-
-#undef WCHAR_TYPE
-#define WCHAR_TYPE "int"
-
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE 32
-
-/* Assembler format: overall framework.  */
-
-#undef ASM_APP_ON
-#define ASM_APP_ON "#APP\n"
-
-#undef ASM_APP_OFF
-#define ASM_APP_OFF "#NO_APP\n"
-
-/* Stack & calling: aggregate returns.  */
-
-/* Don't default to pcc-struct-return, because gcc is the only compiler, and
-   we want to retain compatibility with older gcc versions.  */
-#define DEFAULT_PCC_STRUCT_RETURN 0
-
-/* Assembler format: alignment output.  */
-
-/* Kludgy test: when gas is upgraded, it will have p2align, and no problems
-   with nops.  */
-#ifndef HAVE_GAS_MAX_SKIP_P2ALIGN
-/* i386 OpenBSD still uses an older gas that doesn't insert nops by default
-   when the .align directive demands to insert extra space in the text
-   segment.  */
-#undef ASM_OUTPUT_ALIGN
-#define ASM_OUTPUT_ALIGN(FILE,LOG) \
-  if ((LOG)!=0) fprintf ((FILE), "\t.align %d,0x90\n", (LOG))
-#endif
-
-/* Stack & calling: profiling.  */
-
-/* OpenBSD's profiler recovers all information from the stack pointer.
-   The icky part is not here, but in machine/profile.h.  */
-#undef FUNCTION_PROFILER
-#define FUNCTION_PROFILER(FILE, LABELNO)  \
-  fputs (flag_pic ? "\tcall mcount@PLT\n": "\tcall mcount\n", FILE);
-
-/* Assembler format: exception region output.  */
-
-/* All configurations that don't use elf must be explicit about not using
-   dwarf unwind information.  */
-#define DWARF2_UNWIND_INFO 0
-
-#undef ASM_PREFERRED_EH_DATA_FORMAT
-
-#undef ASM_COMMENT_START
-#define ASM_COMMENT_START ";#"
-
-/* OpenBSD gas currently does not support quad, so do not use it.  */
-#undef ASM_QUAD
-
-#define TARGET_HAVE_NAMED_SECTIONS false

gcc/config/i386/t-openbsd

-# gdb gets confused if pic code is linked with non pic
-# We cope by building variants of libgcc.
-MULTILIB_OPTIONS = fpic
-MULTILIB_MATCHES=fpic=fPIC