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
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/* Definitions of target machine for GNU compiler,
for i386/ELF NetBSD systems.
Copyright (C) 2001 Free Software Foundation, Inc.
Contributed by matthew green <mrg@eterna.com.au>
This file is part of GNU CC.
GNU CC 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 2, or (at your option)
any later version.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* Provide a LIB_SPEC appropriate for NetBSD. Just select the appropriate
libc, depending on whether we're doing profiling; if `-posix' is specified,
link against the appropriate libposix first. */
#undef LIB_SPEC
#define LIB_SPEC \
"%{posix:%{!p:%{!pg:-lposix}}%{p:-lposix_p}%{pg:-lposix_p}} \
%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
/* Provide a STARTFILE_SPEC appropriate for NetBSD ELF targets. Here we
provide support for the special GCC option -static. On ELF targets,
we also add the crtbegin.o file which provides part of the support
for getting C++ file-scope static objects constructed before entering
`main'. We use the NetBSD crt0. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared: \
%{pg:gcrt0%O%s} \
%{!pg: \
%{p:gcrt0%O%s} \
%{!p:crt0%O%s}}} \
%{!shared:crtbegin%O%s} %{shared:crtbeginS%O%s}"
/* Provide an ENDFILE_SPEC approrpiate for NetBSD ELF targets. Here we
add crtend.o, which provides part of the support for getting C++
file-scope static objects deconstructed after exiting `main'. */
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
/* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target. Only
the linker emulation is i386-specific. The rest are
common to all ELF targets, except for the name of the start function. */
#undef LINK_SPEC
#define LINK_SPEC \
"-m elf_i386 \
%{assert*} %{R*} \
%{shared:-shared} \
%{!shared: \
-dp \
%{!nostdlib:%{!r*:%{!e*:-e __start}}} \
%{!static: \
-dy %{rdynamic:-export-dynamic} \
%{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \
%{static:-static}}"
/* Provide a CPP_SPEC appropriate for NetBSD. Current we just deal with
the GCC option `-posix'. */
#undef CPP_SPEC
#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
/* Provide an ASM_SPEC appropriate for NetBSD. Currently we only deal
with the options for generating PIC code. */
#undef ASM_SPEC
#define ASM_SPEC " %| %{fpic:-k} %{fPIC:-k -K}"
/* Provide a LIB_SPEC appropriate for NetBSD. Just select the appropriate
libc, depending on whether we're doing profiling. */
#undef LIB_SPEC
#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
/* This defines which switch letters take arguments. */
#undef SWITCH_TAKES_ARG
#define SWITCH_TAKES_ARG(CHAR) \
(DEFAULT_SWITCH_TAKES_ARG(CHAR) \
|| (CHAR) == 'R')
/* Implicit library calls should use memcpy, not bcopy, etc. */
#define TARGET_MEM_FUNCTIONS
/* Names to predefine in the preprocessor for this target machine. */
#define CPP_PREDEFINES "\
-Di386 -D__NetBSD__ -D__ELF__ -Asystem(unix) -Asystem(NetBSD)"
/* Make gcc agree with <machine/ansi.h> */
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef WCHAR_UNSIGNED
#define WCHAR_UNSIGNED 0
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
#undef WINT_TYPE
#define WINT_TYPE "int"
/* Output assembler code to FILE to increment profiler label # LABELNO
for profiling a function entry. Under NetBSD/i386, the assembler does
nothing special with -pg. */
#undef ASM_APP_ON
#define ASM_APP_ON "#APP\n"
#undef ASM_APP_OFF
#define ASM_APP_OFF "#NO_APP\n"
#undef ASM_FINAL_SPEC
#define ASM_FINAL_SPEC "%{pipe:-}"
#undef DBX_REGISTER_NUMBER
#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
#undef NO_PROFILE_COUNTERS
#define NO_PROFILE_COUNTERS
#undef HAS_INIT_SECTION
#undef DEFAULT_VTABLE_THUNKS
#define DEFAULT_VTABLE_THUNKS 1
/* This is how we tell the assembler that two symbols have the same value. */
#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
do { assemble_name(FILE, NAME1); \
fputs(" = ", FILE); \
assemble_name(FILE, NAME2); \
fputc('\n', FILE); } while (0)
/* A C statement to output to the stdio stream FILE an assembler
command to advance the location counter to a multiple of 1<<LOG
bytes if it is within MAX_SKIP bytes.
This is used to align code labels according to Intel recommendations. */
#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
/*
* We always use gas here, so we don't worry about ECOFF assembler problems.
*/
#undef TARGET_GAS
#define TARGET_GAS 1
/* Default to pcc-struct-return, because this is the ELF abi and
we don't care about compatibility with older gcc versions. */
#define DEFAULT_PCC_STRUCT_RETURN 1
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (NetBSD/i386 ELF target)");
|
