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3ad9ec6a ILT |
1 | /* This file is tc-m68k.h |
2 | ||
a043f579 ILT |
3 | Copyright (C) 1987, 89, 90, 91, 92, 93, 94, 95, 1996 |
4 | Free Software Foundation, Inc. | |
e3fce8d2 | 5 | |
3ad9ec6a | 6 | This file is part of GAS, the GNU Assembler. |
e3fce8d2 | 7 | |
3ad9ec6a ILT |
8 | GAS is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
e3fce8d2 | 12 | |
3ad9ec6a ILT |
13 | GAS is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
e3fce8d2 | 17 | |
3ad9ec6a ILT |
18 | You should have received a copy of the GNU General Public License |
19 | along with GAS; see the file COPYING. If not, write to | |
a043f579 | 20 | the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
3ad9ec6a | 21 | |
fecd2382 RP |
22 | #define TC_M68K 1 |
23 | ||
a043f579 ILT |
24 | #define TARGET_BYTES_BIG_ENDIAN 1 |
25 | ||
e3fce8d2 | 26 | #ifdef OBJ_AOUT |
a043f579 | 27 | #ifdef TE_SUN3 |
e3fce8d2 | 28 | #define TARGET_FORMAT "a.out-sunos-big" |
a043f579 ILT |
29 | #else |
30 | #ifdef TE_NetBSD | |
31 | #define TARGET_FORMAT "a.out-m68k-netbsd" | |
32 | #else | |
33 | #define TARGET_FORMAT "a.out-zero-big" | |
34 | #endif | |
35 | #endif | |
36 | #endif | |
37 | ||
38 | #ifdef OBJ_ELF | |
39 | #define TARGET_FORMAT "elf32-m68k" | |
e3fce8d2 | 40 | #endif |
3ad9ec6a | 41 | |
326aa685 KR |
42 | #ifdef TE_APOLLO |
43 | #define COFF_MAGIC APOLLOM68KMAGIC | |
44 | #define COFF_AOUTHDR_MAGIC APOLLO_COFF_VERSION_NUMBER | |
45 | #undef OBJ_COFF_OMIT_OPTIONAL_HEADER | |
46 | #endif | |
47 | ||
dff60b7d ILT |
48 | #ifdef TE_LYNX |
49 | #define TARGET_FORMAT "coff-m68k-lynx" | |
50 | #endif | |
a043f579 ILT |
51 | #ifdef TE_AUX |
52 | #define TARGET_FORMAT "coff-m68k-aux" | |
53 | #endif | |
dff60b7d | 54 | |
326aa685 | 55 | #ifndef COFF_MAGIC |
3ad9ec6a | 56 | #define COFF_MAGIC MC68MAGIC |
326aa685 | 57 | #endif |
a043f579 ILT |
58 | #define BFD_ARCH bfd_arch_m68k /* for non-BFD_ASSEMBLER */ |
59 | #define TARGET_ARCH bfd_arch_m68k /* BFD_ASSEMBLER */ | |
3ad9ec6a | 60 | #define COFF_FLAGS F_AR32W |
e3fce8d2 | 61 | #define TC_COUNT_RELOC(x) ((x)->fx_addsy||(x)->fx_subsy) |
3ad9ec6a ILT |
62 | |
63 | #define TC_COFF_FIX2RTYPE(fixP) tc_coff_fix2rtype(fixP) | |
64 | #define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep(frag) | |
a043f579 | 65 | extern int tc_coff_sizemachdep PARAMS ((struct frag *)); |
fecd2382 RP |
66 | #ifdef TE_SUN3 |
67 | /* This variable contains the value to write out at the beginning of | |
68 | the a.out file. The 2<<16 means that this is a 68020 file instead | |
69 | of an old-style 68000 file */ | |
70 | ||
71 | #define DEFAULT_MAGIC_NUMBER_FOR_OBJECT_FILE (2<<16|OMAGIC); /* Magic byte for file header */ | |
72 | #endif /* TE_SUN3 */ | |
e3fce8d2 KR |
73 | |
74 | #ifndef AOUT_MACHTYPE | |
dff60b7d ILT |
75 | #define AOUT_MACHTYPE m68k_aout_machtype |
76 | extern int m68k_aout_machtype; | |
e3fce8d2 KR |
77 | #endif |
78 | ||
79 | #define tc_crawl_symbol_chain(a) {;} /* not used */ | |
80 | #define tc_headers_hook(a) {;} /* not used */ | |
81 | #define tc_aout_pre_write_hook(x) {;} /* not used */ | |
82 | ||
83 | #define LISTING_WORD_SIZE 2 /* A word is 2 bytes */ | |
84 | #define LISTING_LHS_WIDTH 2 /* One word on the first line */ | |
85 | #define LISTING_LHS_WIDTH_SECOND 2 /* One word on the second line */ | |
86 | #define LISTING_LHS_CONT_LINES 4/* And 4 lines max */ | |
a39116f1 RP |
87 | #define LISTING_HEADER "68K GAS " |
88 | ||
89 | /* Copied from write.c */ | |
90 | #define M68K_AIM_KLUDGE(aim, this_state,this_type) \ | |
91 | if (aim==0 && this_state== 4) { /* hard encoded from tc-m68k.c */ \ | |
92 | aim=this_type->rlx_forward+1; /* Force relaxation into word mode */ \ | |
93 | } | |
fecd2382 | 94 | |
326aa685 | 95 | #ifndef REGISTER_PREFIX |
e3fce8d2 | 96 | #define REGISTER_PREFIX '%' |
326aa685 KR |
97 | #endif |
98 | ||
99 | #if !defined (REGISTER_PREFIX_OPTIONAL) | |
a043f579 | 100 | #if defined (M68KCOFF) || defined (OBJ_ELF) |
326aa685 KR |
101 | #define LOCAL_LABEL(name) (name[0] == '.' \ |
102 | && (name[1] == 'L' || name[1] == '.')) | |
103 | #define FAKE_LABEL_NAME ".L0\001" | |
104 | #define REGISTER_PREFIX_OPTIONAL 0 | |
e3fce8d2 | 105 | #else |
326aa685 KR |
106 | #define REGISTER_PREFIX_OPTIONAL 1 |
107 | #endif | |
108 | #endif /* not def REGISTER_PREFIX and not def OPTIONAL_REGISTER_PREFIX */ | |
109 | ||
110 | #ifdef TE_DELTA | |
111 | /* On the Delta, `%' can occur within a label name. I'm assuming it | |
112 | can't be used as the initial character. If that's not true, more | |
113 | work will be needed to fix this up. */ | |
114 | #define LEX_PCT 1 | |
a043f579 ILT |
115 | /* On the Delta, dots are not required before pseudo-ops. */ |
116 | #define NO_PSEUDO_DOT | |
e3fce8d2 KR |
117 | #endif |
118 | ||
20710f1c ILT |
119 | extern void m68k_mri_mode_change PARAMS ((int)); |
120 | #define MRI_MODE_CHANGE(i) m68k_mri_mode_change (i) | |
121 | ||
e3fce8d2 | 122 | #ifdef BFD_ASSEMBLER |
a043f579 | 123 | |
e3fce8d2 KR |
124 | #define tc_frob_symbol(sym,punt) \ |
125 | if (S_GET_SEGMENT (sym) == reg_section) punt = 1 | |
a043f579 ILT |
126 | |
127 | #define NO_RELOC BFD_RELOC_NONE | |
128 | ||
129 | #ifdef OBJ_ELF | |
130 | ||
131 | /* This expression evaluates to false if the relocation is for a local object | |
132 | for which we still want to do the relocation at runtime. True if we | |
133 | are willing to perform this relocation while building the .o file. */ | |
134 | ||
135 | #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ | |
136 | ((FIX)->fx_r_type != BFD_RELOC_8_PLT_PCREL \ | |
137 | && (FIX)->fx_r_type != BFD_RELOC_16_PLT_PCREL \ | |
138 | && (FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL \ | |
139 | && (FIX)->fx_r_type != BFD_RELOC_8_GOT_PCREL \ | |
140 | && (FIX)->fx_r_type != BFD_RELOC_16_GOT_PCREL \ | |
141 | && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL) | |
142 | ||
143 | #define tc_fix_adjustable(X) tc_m68k_fix_adjustable(X) | |
144 | #endif | |
145 | ||
146 | #else | |
147 | #define NO_RELOC 0 | |
e3fce8d2 KR |
148 | #endif |
149 | ||
150 | #define DIFF_EXPR_OK | |
fecd2382 | 151 | |
326aa685 KR |
152 | extern void m68k_init_after_args PARAMS ((void)); |
153 | #define tc_init_after_args m68k_init_after_args | |
154 | ||
155 | extern int m68k_parse_long_option PARAMS ((char *)); | |
156 | #define md_parse_long_option m68k_parse_long_option | |
157 | ||
a043f579 ILT |
158 | #define md_operand(x) |
159 | ||
160 | #define TARGET_WORD_SIZE 32 | |
161 | #define TARGET_ARCH bfd_arch_m68k | |
162 | ||
163 | extern struct relax_type md_relax_table[]; | |
164 | #define TC_GENERIC_RELAX_TABLE md_relax_table | |
165 | ||
fecd2382 | 166 | /* end of tc-m68k.h */ |