1/* Configuration for an OpenBSD i386 target.
2
3   Copyright (C) 2005-2015 Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 3, or (at your option)
10any later version.
11
12GCC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING3.  If not see
19<http://www.gnu.org/licenses/>.  */
20
21#define TARGET_OS_CPP_BUILTINS()		\
22  do						\
23    {						\
24    	OPENBSD_OS_CPP_BUILTINS();		\
25    }						\
26  while (0)
27
28#undef DBX_REGISTER_NUMBER
29#define DBX_REGISTER_NUMBER(n) \
30  (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
31
32/* This must agree with <machine/_types.h>.  */
33#undef SIZE_TYPE
34#define SIZE_TYPE "long unsigned int"
35
36#undef PTRDIFF_TYPE
37#define PTRDIFF_TYPE "long int"
38
39#undef WCHAR_TYPE
40#define WCHAR_TYPE "int"
41
42#undef WCHAR_TYPE_SIZE
43#define WCHAR_TYPE_SIZE 32
44
45#undef WINT_TYPE
46#define WINT_TYPE "int"
47
48/* Don't default to pcc-struct-return, because gcc is the only compiler, and
49   we want to retain compatibility with older gcc versions.  */
50
51#undef DEFAULT_PCC_STRUCT_RETURN
52#define DEFAULT_PCC_STRUCT_RETURN 0
53
54/* Override the default comment-starter of "/".  */
55#undef ASM_COMMENT_START
56#define ASM_COMMENT_START "#"
57
58#undef ASM_APP_ON
59#define ASM_APP_ON "#APP\n"
60
61#undef ASM_APP_OFF
62#define ASM_APP_OFF "#NO_APP\n"
63
64/* A C statement to output to the stdio stream FILE an assembler
65   command to advance the location counter to a multiple of 1<<LOG
66   bytes if it is within MAX_SKIP bytes.
67
68   This is used to align code labels according to Intel recommendations.  */
69
70#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
71#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP)			\
72  do {									\
73    if ((LOG) != 0) {							\
74      if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG));	\
75      else {								\
76	fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));	\
77	/* Make sure that we have at least 8 byte alignment if > 8 byte \
78	   alignment is preferred.  */					\
79	if ((LOG) > 3							\
80	    && (1 << (LOG)) > ((MAX_SKIP) + 1)				\
81	    && (MAX_SKIP) >= 7)						\
82	  fputs ("\t.p2align 3\n", (FILE));				\
83      }									\
84    }									\
85  } while (0)
86#endif
87
88/* OpenBSD's profiler recovers all information from the stack pointer.
89   The icky part is not here, but in <machine/profile.h>.  */
90#undef FUNCTION_PROFILER
91#define FUNCTION_PROFILER(FILE, LABELNO)  \
92  fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE);
93
94#undef LINK_SPEC
95#define LINK_SPEC \
96  "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \
97   %{shared:-shared} %{R*} \
98   %{static:-Bstatic} \
99   %{!static:-Bdynamic} \
100   %{assert*} \
101   -dynamic-linker /usr/libexec/ld.so"
102
103#undef STARTFILE_SPEC
104#define STARTFILE_SPEC "\
105	%{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
106	crtbegin%O%s} %{shared:crtbeginS%O%s}"
107
108#undef ENDFILE_SPEC
109#define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
110
111#define OBSD_HAS_CORRECT_SPECS
112
113#define HAVE_ENABLE_EXECUTE_STACK
114