1/* Configuration for an OpenBSD i386 target.
2   Copyright (C) 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify
7it under the terms of the GNU General Public License as published by
8the Free Software Foundation; either version 2, or (at your option)
9any later version.
10
11GCC is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14GNU General Public License for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING.  If not, write to
18the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19Boston, MA 02110-1301, USA.  */
20
21
22#define TARGET_VERSION fprintf (stderr, " (OpenBSD/i386)");
23
24/* This goes away when the math-emulator is fixed */
25#undef TARGET_SUBTARGET_DEFAULT
26#define TARGET_SUBTARGET_DEFAULT \
27  (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
28
29#define TARGET_OS_CPP_BUILTINS()		\
30  do						\
31    {						\
32	builtin_define ("__unix__");		\
33	builtin_define ("__OpenBSD__");		\
34	builtin_assert ("system=unix");		\
35	builtin_assert ("system=bsd");		\
36	builtin_assert ("system=OpenBSD");	\
37    }						\
38  while (0)
39
40/* Layout of source language data types.  */
41
42/* This must agree with <machine/ansi.h> */
43#undef SIZE_TYPE
44#define SIZE_TYPE "unsigned int"
45
46#undef PTRDIFF_TYPE
47#define PTRDIFF_TYPE "int"
48
49#undef WCHAR_TYPE
50#define WCHAR_TYPE "int"
51
52#undef WCHAR_TYPE_SIZE
53#define WCHAR_TYPE_SIZE 32
54
55/* Assembler format: overall framework.  */
56
57#undef ASM_APP_ON
58#define ASM_APP_ON "#APP\n"
59
60#undef ASM_APP_OFF
61#define ASM_APP_OFF "#NO_APP\n"
62
63/* Stack & calling: aggregate returns.  */
64
65/* Don't default to pcc-struct-return, because gcc is the only compiler, and
66   we want to retain compatibility with older gcc versions.  */
67#define DEFAULT_PCC_STRUCT_RETURN 0
68
69/* Assembler format: alignment output.  */
70
71/* Kludgy test: when gas is upgraded, it will have p2align, and no problems
72   with nops.  */
73#ifndef HAVE_GAS_MAX_SKIP_P2ALIGN
74/* i386 OpenBSD still uses an older gas that doesn't insert nops by default
75   when the .align directive demands to insert extra space in the text
76   segment.  */
77#undef ASM_OUTPUT_ALIGN
78#define ASM_OUTPUT_ALIGN(FILE,LOG) \
79  if ((LOG)!=0) fprintf ((FILE), "\t.align %d,0x90\n", (LOG))
80#endif
81
82/* Stack & calling: profiling.  */
83
84/* OpenBSD's profiler recovers all information from the stack pointer.
85   The icky part is not here, but in machine/profile.h.  */
86#undef FUNCTION_PROFILER
87#define FUNCTION_PROFILER(FILE, LABELNO)  \
88  fputs (flag_pic ? "\tcall mcount@PLT\n": "\tcall mcount\n", FILE);
89
90/* Assembler format: exception region output.  */
91
92/* All configurations that don't use elf must be explicit about not using
93   dwarf unwind information.  */
94#define DWARF2_UNWIND_INFO 0
95
96#undef ASM_PREFERRED_EH_DATA_FORMAT
97
98#undef ASM_COMMENT_START
99#define ASM_COMMENT_START ";#"
100
101/* OpenBSD gas currently does not support quad, so do not use it.  */
102#undef ASM_QUAD
103