aboutsummaryrefslogtreecommitdiff
path: root/gcc/config/i386/openbsdelf.h
blob: 53949e8ab08b05e3514976bdbb28b67acc16a823 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/* Configuration for an OpenBSD i386 target.
   
   Copyright (C) 2005, 2007, 2009, 2010 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 keeps us from using libraries compiled with the native cc, so
   undef it. */
#undef NO_DOLLAR_IN_LABEL

/* Override the default comment-starter of "/".  */
#undef ASM_COMMENT_START
#define ASM_COMMENT_START "#"

#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]

/* This goes away when the math-emulator is fixed */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
  (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)

/* Run-time target specifications */

#define TARGET_OS_CPP_BUILTINS()		\
  do						\
    {						\
    	OPENBSD_OS_CPP_BUILTINS();		\
    }						\
  while (0)

/* As an elf system, we need crtbegin/crtend stuff.  */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "\
	%{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
	crtbegin%O%s} %{shared:crtbeginS%O%s}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"

/* 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 BITS_PER_WORD

#undef WINT_TYPE
#define WINT_TYPE "int"

/* 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"

#undef SET_ASM_OP
#define SET_ASM_OP	"\t.set\t"

/* The following macros were originally stolen from i386v4.h.
   These have to be defined to get PIC code correct.  */

/* Assembler format: dispatch tables.  */

/* Assembler format: sections.  */

/* 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.  */

#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
  if ((LOG) != 0) {\
    if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
    else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
  }
#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.  */

/* our configuration still doesn't handle dwarf2 correctly */
#define DWARF2_UNWIND_INFO 0

/* Assembler format: alignment output.  */

/* Note that we pick up ASM_OUTPUT_MAX_SKIP_ALIGN from i386/gas.h */

/* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h.  */

#undef LINK_SPEC
#define LINK_SPEC \
  "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \
   %{shared:-shared} %{R*} \
   %{static:-Bstatic} \
   %{!static:-Bdynamic} \
   %{assert*} \
   -dynamic-linker /usr/libexec/ld.so"

#define OBSD_HAS_CORRECT_SPECS