1/* Definitions of target machine for GCC,
2   for i386/ELF NetBSD systems.
3   Copyright (C) 2001, 2002, 2004 Free Software Foundation, Inc.
4   Contributed by matthew green <mrg@eterna.com.au>
5
6This file is part of GCC.
7
8GCC is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2, or (at your option)
11any later version.
12
13GCC is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GCC; see the file COPYING.  If not, write to
20the Free Software Foundation, 51 Franklin Street, Fifth Floor,
21Boston, MA 02110-1301, USA.  */
22
23#define TARGET_OS_CPP_BUILTINS()		\
24  do						\
25    {						\
26      NETBSD_OS_CPP_BUILTINS_ELF();		\
27    }						\
28  while (0)
29
30
31/* Extra specs needed for NetBSD/i386 ELF.  */
32
33#undef SUBTARGET_EXTRA_SPECS
34#define SUBTARGET_EXTRA_SPECS			\
35  { "netbsd_cpp_spec", NETBSD_CPP_SPEC },	\
36  { "netbsd_entry_point", NETBSD_ENTRY_POINT },
37
38
39/* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target.  */
40
41#undef LINK_SPEC
42#define LINK_SPEC NETBSD_LINK_SPEC_ELF
43
44#define NETBSD_ENTRY_POINT "__start"
45
46
47/* Provide a CPP_SPEC appropriate for NetBSD.  */
48
49#undef CPP_SPEC
50#define CPP_SPEC "%(netbsd_cpp_spec)"
51
52
53/* Make gcc agree with <machine/ansi.h> */
54
55#undef SIZE_TYPE
56#define SIZE_TYPE "unsigned int"
57
58#undef PTRDIFF_TYPE
59#define PTRDIFF_TYPE "int"
60
61#undef ASM_APP_ON
62#define ASM_APP_ON "#APP\n"
63
64#undef ASM_APP_OFF
65#define ASM_APP_OFF "#NO_APP\n"
66
67#undef ASM_COMMENT_START
68#define ASM_COMMENT_START "#"
69
70#undef DBX_REGISTER_NUMBER
71#define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]
72
73
74/* Output assembler code to FILE to call the profiler.  */
75
76#undef NO_PROFILE_COUNTERS
77#define NO_PROFILE_COUNTERS	1
78
79#undef FUNCTION_PROFILER
80#define FUNCTION_PROFILER(FILE, LABELNO)				\
81{									\
82  if (flag_pic)								\
83    fprintf (FILE, "\tcall __mcount@PLT\n");				\
84  else									\
85    fprintf (FILE, "\tcall __mcount\n");				\
86}
87
88
89#undef HAS_INIT_SECTION
90
91/* This is how we tell the assembler that two symbols have the same value.  */
92
93#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
94  do { assemble_name(FILE, NAME1); 	 \
95       fputs(" = ", FILE);		 \
96       assemble_name(FILE, NAME2);	 \
97       fputc('\n', FILE); } while (0)
98
99/* A C statement to output to the stdio stream FILE an assembler
100   command to advance the location counter to a multiple of 1<<LOG
101   bytes if it is within MAX_SKIP bytes.
102
103   This is used to align code labels according to Intel recommendations.  */
104
105#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
106#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP)			\
107  if ((LOG) != 0) {							\
108    if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG));	\
109    else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));	\
110  }
111#endif
112
113/* We always use gas here, so we don't worry about ECOFF assembler
114   problems.  */
115#undef TARGET_GAS
116#define TARGET_GAS	1
117
118/* Default to pcc-struct-return, because this is the ELF abi and
119   we don't care about compatibility with older gcc versions.  */
120#define DEFAULT_PCC_STRUCT_RETURN 1
121
122/* Attempt to enable execute permissions on the stack.  */
123#define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK
124
125#define TARGET_VERSION fprintf (stderr, " (NetBSD/i386 ELF)");
126