1/* Configuration for an OpenBSD i386 target.
2   Copyright (C) 1999-2015 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 3, 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 COPYING3.  If not see
18<http://www.gnu.org/licenses/>.  */
19
20
21/* This goes away when the math-emulator is fixed */
22#undef TARGET_SUBTARGET_DEFAULT
23#define TARGET_SUBTARGET_DEFAULT \
24  (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
25
26#define TARGET_OS_CPP_BUILTINS()		\
27  do						\
28    {						\
29	builtin_define ("__unix__");		\
30	builtin_define ("__OpenBSD__");		\
31	builtin_assert ("system=unix");		\
32	builtin_assert ("system=bsd");		\
33	builtin_assert ("system=OpenBSD");	\
34    }						\
35  while (0)
36
37/* Layout of source language data types.  */
38
39/* This must agree with <machine/ansi.h> */
40#undef SIZE_TYPE
41#define SIZE_TYPE "unsigned int"
42
43#undef PTRDIFF_TYPE
44#define PTRDIFF_TYPE "int"
45
46#undef WCHAR_TYPE
47#define WCHAR_TYPE "int"
48
49#undef WCHAR_TYPE_SIZE
50#define WCHAR_TYPE_SIZE 32
51
52/* Assembler format: overall framework.  */
53
54#undef ASM_APP_ON
55#define ASM_APP_ON "#APP\n"
56
57#undef ASM_APP_OFF
58#define ASM_APP_OFF "#NO_APP\n"
59
60/* Stack & calling: aggregate returns.  */
61
62/* Don't default to pcc-struct-return, because gcc is the only compiler, and
63   we want to retain compatibility with older gcc versions.  */
64#define DEFAULT_PCC_STRUCT_RETURN 0
65
66/* Assembler format: alignment output.  */
67
68/* Kludgy test: when gas is upgraded, it will have p2align, and no problems
69   with nops.  */
70#ifndef HAVE_GAS_MAX_SKIP_P2ALIGN
71/* i386 OpenBSD still uses an older gas that doesn't insert nops by default
72   when the .align directive demands to insert extra space in the text
73   segment.  */
74#undef ASM_OUTPUT_ALIGN
75#define ASM_OUTPUT_ALIGN(FILE,LOG) \
76  if ((LOG)!=0) fprintf ((FILE), "\t.align %d,0x90\n", (LOG))
77#endif
78
79/* Stack & calling: profiling.  */
80
81/* OpenBSD's profiler recovers all information from the stack pointer.
82   The icky part is not here, but in machine/profile.h.  */
83#undef FUNCTION_PROFILER
84#define FUNCTION_PROFILER(FILE, LABELNO)  \
85  fputs (flag_pic ? "\tcall mcount@PLT\n": "\tcall mcount\n", FILE);
86
87/* Assembler format: exception region output.  */
88
89/* All configurations that don't use elf must be explicit about not using
90   dwarf unwind information.  */
91#define DWARF2_UNWIND_INFO 0
92
93#undef ASM_PREFERRED_EH_DATA_FORMAT
94
95#undef ASM_COMMENT_START
96#define ASM_COMMENT_START ";#"
97
98/* OpenBSD gas currently does not support quad, so do not use it.  */
99#undef ASM_QUAD
100
101#define TARGET_HAVE_NAMED_SECTIONS false
102
103#define IX86_MAYBE_NO_LIBGCC_TFMODE
104