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
183
|
/* This file is tc-m68k.h
Copyright 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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.
GAS 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 GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#define TC_M68K 1
struct fix;
#define TARGET_BYTES_BIG_ENDIAN 1
#ifdef OBJ_AOUT
#ifdef TE_SUN3
#define TARGET_FORMAT "a.out-sunos-big"
#endif
#ifdef TE_NetBSD
#define TARGET_FORMAT "a.out-m68k-netbsd"
#endif
#ifdef TE_LINUX
#define TARGET_FORMAT "a.out-m68k-linux"
#endif
#ifndef TARGET_FORMAT
#define TARGET_FORMAT "a.out-zero-big"
#endif
#endif
#ifdef OBJ_ELF
#define TARGET_FORMAT "elf32-m68k"
#endif
#ifdef TE_APOLLO
#define COFF_MAGIC APOLLOM68KMAGIC
#define COFF_AOUTHDR_MAGIC APOLLO_COFF_VERSION_NUMBER
#undef OBJ_COFF_OMIT_OPTIONAL_HEADER
#endif
#ifdef TE_AUX
#define TARGET_FORMAT "coff-m68k-aux"
#endif
#ifdef TE_DELTA
#define TARGET_FORMAT "coff-m68k-sysv"
#endif
#ifndef COFF_MAGIC
#define COFF_MAGIC MC68MAGIC
#endif
#define TARGET_ARCH bfd_arch_m68k
#define tc_comment_chars m68k_comment_chars
extern const char *m68k_comment_chars;
#define LISTING_WORD_SIZE 2 /* A word is 2 bytes */
#define LISTING_LHS_WIDTH 2 /* One word on the first line */
#define LISTING_LHS_WIDTH_SECOND 2 /* One word on the second line */
#define LISTING_LHS_CONT_LINES 4/* And 4 lines max */
#define LISTING_HEADER "68K GAS "
#ifndef REGISTER_PREFIX
#define REGISTER_PREFIX '%'
#endif
#if !defined (REGISTER_PREFIX_OPTIONAL)
#if defined (M68KCOFF) || defined (OBJ_ELF)
#define REGISTER_PREFIX_OPTIONAL 0
#else /* ! (COFF || ELF) */
#define REGISTER_PREFIX_OPTIONAL 1
#endif /* ! (COFF || ELF) */
#endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */
#ifdef TE_DELTA
/* On the Delta, `%' can occur within a label name, but not as the
initial character. */
#define LEX_PCT LEX_NAME
/* On the Delta, `~' can start a label name, but is converted to '.'. */
#define LEX_TILDE LEX_BEGIN_NAME
#define tc_canonicalize_symbol_name(s) ((*(s) == '~' ? *(s) = '.' : '.'), s)
/* On the Delta, dots are not required before pseudo-ops. */
#define NO_PSEUDO_DOT 1
#endif
extern void m68k_mri_mode_change (int);
#define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i)
extern int m68k_conditional_pseudoop (pseudo_typeS *);
#define tc_conditional_pseudoop(pop) m68k_conditional_pseudoop (pop)
extern void m68k_frob_label (symbolS *);
#define tc_frob_label(sym) m68k_frob_label (sym)
extern void m68k_flush_pending_output (void);
#define md_flush_pending_output() m68k_flush_pending_output ()
extern void m68k_frob_symbol (symbolS *);
#define tc_frob_symbol(sym,punt) \
do \
{ \
if (S_GET_SEGMENT (sym) == reg_section) \
punt = 1; \
m68k_frob_symbol (sym); \
} \
while (0)
#define NO_RELOC BFD_RELOC_NONE
#define RELAX_RELOC_ABS8 BFD_RELOC_8
#define RELAX_RELOC_ABS16 BFD_RELOC_16
#define RELAX_RELOC_ABS32 BFD_RELOC_32
#define RELAX_RELOC_PC8 BFD_RELOC_8_PCREL
#define RELAX_RELOC_PC16 BFD_RELOC_16_PCREL
#define RELAX_RELOC_PC32 BFD_RELOC_32_PCREL
#ifdef OBJ_ELF
#define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X)
extern int tc_m68k_fix_adjustable (struct fix *);
/* Target *-*-elf implies an embedded target. No shared libs.
*-*-uclinux also requires special casing to prevent GAS from
generating unsupported R_68K_PC16 relocs. */
#define EXTERN_FORCE_RELOC \
((strcmp (TARGET_OS, "elf") != 0) && (strcmp (TARGET_OS, "uclinux") != 0))
/* Values passed to md_apply_fix don't include symbol values. */
#define MD_APPLY_SYM_VALUE(FIX) 0
#define elf_tc_final_processing m68k_elf_final_processing
extern void m68k_elf_final_processing (void);
#endif
#define DIFF_EXPR_OK
extern void m68k_init_after_args (void);
#define tc_init_after_args m68k_init_after_args
extern int m68k_parse_long_option (char *);
#define md_parse_long_option m68k_parse_long_option
#define md_operand(x)
#define TARGET_ARCH bfd_arch_m68k
extern struct relax_type md_relax_table[];
#define TC_GENERIC_RELAX_TABLE md_relax_table
/* We can't do a byte jump to the next instruction, so in that case
force word mode by faking AIM. */
#define md_prepare_relax_scan(fragP, address, aim, this_state, this_type) \
do \
{ \
if (aim == 0 && this_type->rlx_forward == 127) \
aim = 128; \
} \
while (0)
#define DWARF2_LINE_MIN_INSN_LENGTH 2
/* We want .cfi_* pseudo-ops for generating unwind info. */
#define TARGET_USE_CFIPOP 1
#define DWARF2_DEFAULT_RETURN_COLUMN 24
#define DWARF2_CIE_DATA_ALIGNMENT (-4)
#define tc_regname_to_dw2regnum tc_m68k_regname_to_dw2regnum
extern int tc_m68k_regname_to_dw2regnum (const char *regname);
#define tc_cfi_frame_initial_instructions tc_m68k_frame_initial_instructions
extern void tc_m68k_frame_initial_instructions (void);
|
