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1.1 root 1: /* Definitions of target machine for GNU compiler. Sun 68010 version.
2: Copyright (C) 1987, 1988 Free Software Foundation, Inc.
3:
4: This file is part of GNU CC.
5:
6: GNU CC is free software; you can redistribute it and/or modify
7: it under the terms of the GNU General Public License as published by
8: the Free Software Foundation; either version 2, or (at your option)
9: any later version.
10:
11: GNU CC is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU General Public License for more details.
15:
16: You should have received a copy of the GNU General Public License
17: along with GNU CC; see the file COPYING. If not, write to
18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19:
20:
21: #include "m68k/m68k.h"
22:
23: /* See m68k.h. 0 means 68000 with no 68881. */
24:
25: #define TARGET_DEFAULT 0
26:
27: /* Don't try using XFmode. */
28: #undef LONG_DOUBLE_TYPE_SIZE
29: #define LONG_DOUBLE_TYPE_SIZE 64
30:
31: /* Define __HAVE_68881 in preprocessor only if -m68881 is specified.
32: This will control the use of inline 68881 insns in certain macros.
33: Also inform the program which CPU this is for. */
34:
35: #define CPP_SPEC "%{m68881:-D__HAVE_68881__} \
36: %{!ansi:%{m68020:-Dmc68020}%{mc68020:-Dmc68020}%{!mc68020:%{!m68020:-Dmc68010}}}"
37:
38: /* -m68020 requires special flags to the assembler. */
39:
40: #define ASM_SPEC \
41: "%{m68020:-mc68020}%{mc68020:-mc68020}%{!mc68020:%{!m68020:-mc68010}} \
42: %{fpic:-k} %{fPIC:-k}"
43:
44: /* Names to predefine in the preprocessor for this target machine. */
45:
46: #define CPP_PREDEFINES "-Dmc68000 -Dsun -Dunix -Asystem(unix) -Asystem(bsd) -Acpu(m68k) -Amachine(m68k)"
47:
48: /* Prevent error on `-sun2' and `-target sun2' options. */
49:
50: #define CC1_SPEC "%{sun2:} %{target:}"
51:
52: /* These compiler options take an argument. We ignore -target for now. */
53:
54: #define WORD_SWITCH_TAKES_ARG(STR) \
55: (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
56: || !strcmp (STR, "target") || !strcmp (STR, "assert"))
57:
58: /* Specify what to link with. */
59:
60: /* Link with libg.a when debugging, for dbx's sake. */
61: /* Include the support for -a when appropriate. */
62: #define LIB_SPEC "%{g:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} \
63: %{a:/usr/lib/bb_link.o -lc} "
64:
65: /* Alignment of field after `int : 0' in a structure. */
66:
67: #undef EMPTY_FIELD_BOUNDARY
68: #define EMPTY_FIELD_BOUNDARY 16
69:
70: /* Every structure or union's size must be a multiple of 2 bytes. */
71:
72: #define STRUCTURE_SIZE_BOUNDARY 16
73:
74: /* This is BSD, so it wants DBX format. */
75:
76: #define DBX_DEBUGGING_INFO
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