1/* Definitions of target machine for GCC,
2   for i386/ELF NetBSD systems.
3   Copyright (C) 2001-2015 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 3, 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 COPYING3.  If not see
20<http://www.gnu.org/licenses/>.  */
21
22#define TARGET_OS_CPP_BUILTINS()		\
23  do						\
24    {						\
25      NETBSD_OS_CPP_BUILTINS_ELF();		\
26    }						\
27  while (0)
28
29
30/* Extra specs needed for NetBSD/i386 ELF.  */
31
32#undef SUBTARGET_EXTRA_SPECS
33#define SUBTARGET_EXTRA_SPECS			\
34  { "netbsd_cpp_spec", NETBSD_CPP_SPEC },	\
35  { "netbsd_entry_point", NETBSD_ENTRY_POINT },
36
37
38/* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target.  */
39
40#undef LINK_SPEC
41#define LINK_SPEC NETBSD_LINK_SPEC_ELF
42
43#define NETBSD_ENTRY_POINT "__start"
44
45
46/* Provide a CPP_SPEC appropriate for NetBSD.  */
47
48#undef CPP_SPEC
49#define CPP_SPEC "%(netbsd_cpp_spec)"
50
51
52/* Make gcc agree with <machine/ansi.h> */
53
54#undef SIZE_TYPE
55#define SIZE_TYPE "unsigned int"
56
57#undef PTRDIFF_TYPE
58#define PTRDIFF_TYPE "int"
59
60#undef ASM_APP_ON
61#define ASM_APP_ON "#APP\n"
62
63#undef ASM_APP_OFF
64#define ASM_APP_OFF "#NO_APP\n"
65
66#undef ASM_COMMENT_START
67#define ASM_COMMENT_START "#"
68
69#undef DBX_REGISTER_NUMBER
70#define DBX_REGISTER_NUMBER(n)  svr4_dbx_register_map[n]
71
72
73/* Output assembler code to FILE to call the profiler.  */
74
75#undef NO_PROFILE_COUNTERS
76#define NO_PROFILE_COUNTERS	1
77
78#undef FUNCTION_PROFILER
79#define FUNCTION_PROFILER(FILE, LABELNO)				\
80{									\
81  if (flag_pic)								\
82    fprintf (FILE, "\tcall __mcount@PLT\n");				\
83  else									\
84    fprintf (FILE, "\tcall __mcount\n");				\
85}
86
87
88#undef HAS_INIT_SECTION
89
90/* This is how we tell the assembler that two symbols have the same value.  */
91
92#define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
93  do { assemble_name(FILE, NAME1); 	 \
94       fputs(" = ", FILE);		 \
95       assemble_name(FILE, NAME2);	 \
96       fputc('\n', FILE); } while (0)
97
98/* A C statement to output to the stdio stream FILE an assembler
99   command to advance the location counter to a multiple of 1<<LOG
100   bytes if it is within MAX_SKIP bytes.
101
102   This is used to align code labels according to Intel recommendations.  */
103
104#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
105#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP)			\
106  if ((LOG) != 0) {							\
107    if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG));	\
108    else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));	\
109  }
110#endif
111
112/* We always use gas here, so we don't worry about ECOFF assembler
113   problems.  */
114#undef TARGET_GAS
115#define TARGET_GAS	1
116
117/* Default to pcc-struct-return, because this is the ELF abi and
118   we don't care about compatibility with older gcc versions.  */
119#define DEFAULT_PCC_STRUCT_RETURN 1
120
121#define HAVE_ENABLE_EXECUTE_STACK
122
123#define IX86_MAYBE_NO_LIBGCC_TFMODE
124