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1.1 root 1: /* Definitions of target machine for GNU compiler.
1.1.1.3 root 2: Copyright (C) 1990, 1994 Free Software Foundation, Inc.
1.1 root 3:
4: Written by Randy Welch
5: Send bug reports, questions and improvements to any of the following
6: addresses:
7:
1.1.1.3 root 8: [email protected]
9: [email protected]
10: [email protected]
11: [email protected] Plexus users mailing list
12:
13: For 680X0 based Plexus Computers running SYSVR2
14:
15: The Plexus port of gcc requires you to use gas ( either 1.3X with COFF
16: patches or 2.X ), If you use gas 2.X you have to use binutils-2.X.
17:
1.1.1.4 ! root 18: With using gas-2.X the Plexus gcc port is now capable of generating
1.1.1.3 root 19: output suitable for use by gdb-4.X ( send mail to above address for
20: info on getting gdb patches or other GNU items for the Plexus )
1.1 root 21:
22: This is configured for label output default by gas as LXXX instead of
23: plexus cc/as combination requires .LXXX
24:
25: This file is part of GNU CC.
26:
27: GNU CC is free software; you can redistribute it and/or modify
28: it under the terms of the GNU General Public License as published by
29: the Free Software Foundation; either version 1, or (at your option)
30: any later version.
31:
32: GNU CC is distributed in the hope that it will be useful,
33: but WITHOUT ANY WARRANTY; without even the implied warranty of
34: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
35: GNU General Public License for more details.
36:
37: You should have received a copy of the GNU General Public License
38: along with GNU CC; see the file COPYING. If not, write to
1.1.1.4 ! root 39: the Free Software Foundation, 59 Temple Place - Suite 330,
! 40: Boston, MA 02111-1307, USA. */
1.1 root 41:
42:
43: #include "m68k/m68k.h"
44:
45: /* Define __HAVE_68881 in preprocessor only if -m68881 is specified.
46: This will control the use of inline 68881 insns in certain macros. */
47:
48: #define TARGET_DEFAULT 5 /* set to 5 if on a '020 box */
49:
50: /* Don't try using XFmode. */
51: #undef LONG_DOUBLE_TYPE_SIZE
52: #define LONG_DOUBLE_TYPE_SIZE 64
53:
54: #define CPP_SPEC "%{m68881:-D__HAVE_68881__}"
1.1.1.2 root 55: #define CPP_PREDEFINES "-Dm68 -Dunix -Dplexus -Asystem(unix) -Acpu(m68k) -Amachine(m68k)"
1.1 root 56:
57: #if TARGET_DEFAULT & 01
58: #define ASM_SPEC\
59: "%{m68000:-mc68000}%{mc68000:-mc68000}%{!mc68000:%{!m68000:-mc68020}}"
60: #undef STRICT_ALIGNMENT
61: #define STRICT_ALIGNMENT 0
62: #else
63: #define ASM_SPEC\
64: "%{m68020:-mc68020}%{mc68020:-mc68020}%{!mc68020:%{!mc68020:-mc68000}}"
65: #endif
66:
67: /***************************************************************************/
68: /* Un comment the following if you want adb to be able to follow a core */
69: /* file if you compile a program with -O */
70: /***************************************************************************/
71: /* #define FRAME_POINTER_REQUIRED */
72:
73: /* Let's be compatible with the Plexus C compiler by default. Why not? */
74: #define PLEXUS_CC_COMPAT
75:
76: #ifdef PLEXUS_CC_COMPAT
77: #define STRUCTURE_SIZE_BOUNDARY 16 /* for compatibility with cc */
78: #undef STACK_BOUNDARY
79: #define STACK_BOUNDARY 32 /* ditto */
80: #endif
81:
82: #undef NEED_PROBE
83: #define NEED_PROBE -132 /* plexus needs a stack probe */
84:
1.1.1.3 root 85: /***********************************************************************/
86: /* if you have binutils-2.X and gas-2.X running you can generate code */
87: /* that gdb can understand ( gdb support available for 4.11 ) */
88: /* */
89: /* If you use gas-1.3X don't define this as the version of the coff */
90: /* patches for gas-1.3x ( stabs in coff ) does not generate coff debug */
91: /* syms */
92: /***********************************************************************/
93: #define HAVE_GAS_2_X
94:
95: #ifdef HAVE_GAS_2_X
96: #undef DBX_DEBUGGING_INFO
97: #define SDB_DEBUGGING_INFO
98:
99: #undef ASM_FILE_START
100: #define ASM_FILE_START(FILE) \
101: output_file_directive((FILE), main_input_filename)
102:
103: #else
1.1 root 104: #undef DBX_DEBUGGING_INFO /* no real debugger */
105: #undef SDB_DEBUGGING_INFO
1.1.1.3 root 106: #endif
1.1 root 107: #define TARGET_MEM_FUNCTIONS
108:
109: /***********************************************************************/
110: /* items for collect2 */
111: /***********************************************************************/
112:
113: #define NM_FLAGS ""
114: #define NO_SYS_SIGLIST
115: #define NO_DUP2
116:
117: #define SIZE_TYPE "int"
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