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comparison gcc/config/i386/openbsdelf.h @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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children 77e2b8dfacca
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-1:000000000000 0:a06113de4d67
1 /* Configuration for an OpenBSD i386 target.
2
3 Copyright (C) 2005, 2007 Free Software Foundation, Inc.
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3, or (at your option)
10 any later version.
11
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 /* This gets defined in tm.h->linux.h->svr4.h, and keeps us from using
22 libraries compiled with the native cc, so undef it. */
23 #undef NO_DOLLAR_IN_LABEL
24
25 /* Override the default comment-starter of "/". */
26 #undef ASM_COMMENT_START
27 #define ASM_COMMENT_START "#"
28
29 #undef DBX_REGISTER_NUMBER
30 #define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
31
32 /* This goes away when the math-emulator is fixed */
33 #undef TARGET_DEFAULT
34 #define TARGET_DEFAULT \
35 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
36
37 /* Run-time target specifications */
38
39 #define TARGET_OS_CPP_BUILTINS() \
40 do \
41 { \
42 OPENBSD_OS_CPP_BUILTINS(); \
43 } \
44 while (0)
45
46 /* As an elf system, we need crtbegin/crtend stuff. */
47 #undef STARTFILE_SPEC
48 #define STARTFILE_SPEC "\
49 %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
50 crtbegin%O%s} %{shared:crtbeginS%O%s}"
51 #undef ENDFILE_SPEC
52 #define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
53
54 /* Layout of source language data types. */
55
56 /* This must agree with <machine/ansi.h> */
57 #undef SIZE_TYPE
58 #define SIZE_TYPE "unsigned int"
59
60 #undef PTRDIFF_TYPE
61 #define PTRDIFF_TYPE "int"
62
63 #undef WCHAR_TYPE
64 #define WCHAR_TYPE "int"
65
66 #undef WCHAR_TYPE_SIZE
67 #define WCHAR_TYPE_SIZE BITS_PER_WORD
68
69 /* Assembler format: overall framework. */
70
71 #undef ASM_APP_ON
72 #define ASM_APP_ON "#APP\n"
73
74 #undef ASM_APP_OFF
75 #define ASM_APP_OFF "#NO_APP\n"
76
77 #undef SET_ASM_OP
78 #define SET_ASM_OP "\t.set\t"
79
80 /* The following macros were originally stolen from i386v4.h.
81 These have to be defined to get PIC code correct. */
82
83 /* Assembler format: dispatch tables. */
84
85 /* Assembler format: sections. */
86
87 /* Stack & calling: aggregate returns. */
88
89 /* Don't default to pcc-struct-return, because gcc is the only compiler, and
90 we want to retain compatibility with older gcc versions. */
91 #define DEFAULT_PCC_STRUCT_RETURN 0
92
93 /* Assembler format: alignment output. */
94
95 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
96 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
97 if ((LOG) != 0) {\
98 if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
99 else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
100 }
101 #endif
102
103 /* Stack & calling: profiling. */
104
105 /* OpenBSD's profiler recovers all information from the stack pointer.
106 The icky part is not here, but in machine/profile.h. */
107 #undef FUNCTION_PROFILER
108 #define FUNCTION_PROFILER(FILE, LABELNO) \
109 fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE);
110
111 /* Assembler format: exception region output. */
112
113 /* our configuration still doesn't handle dwarf2 correctly */
114 #define DWARF2_UNWIND_INFO 0
115
116 /* Assembler format: alignment output. */
117
118 /* Note that we pick up ASM_OUTPUT_MAX_SKIP_ALIGN from i386/gas.h */
119
120 /* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h. */
121
122 #undef LINK_SPEC
123 #define LINK_SPEC \
124 "%{!shared:%{!nostdlib:%{!r*:%{!e*:-e __start}}}} \
125 %{shared:-shared} %{R*} \
126 %{static:-Bstatic} \
127 %{!static:-Bdynamic} \
128 %{assert*} \
129 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so}"
130
131 #define OBSD_HAS_CORRECT_SPECS