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252b5132 | 1 | /* tc-mips.h -- header file for tc-mips.c. |
82efde3a KH |
2 | Copyright (C) 1993, 94, 95, 96, 97, 1999, 2000 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
4 | Contributed by the OSF and Ralph Campbell. |
5 | Written by Keith Knowles and Ralph Campbell, working independently. | |
6 | Modified for ECOFF support by Ian Lance Taylor of Cygnus Support. | |
7 | ||
8 | This file is part of GAS. | |
9 | ||
10 | GAS is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
14 | ||
15 | GAS is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with GAS; see the file COPYING. If not, write to the Free | |
22 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
23 | 02111-1307, USA. */ | |
24 | ||
25 | #ifndef TC_MIPS | |
26 | ||
27 | #define TC_MIPS | |
28 | ||
29 | #ifdef ANSI_PROTOTYPES | |
30 | struct frag; | |
31 | struct expressionS; | |
32 | #endif | |
33 | ||
34 | /* Default to big endian. */ | |
35 | #ifndef TARGET_BYTES_BIG_ENDIAN | |
36 | #define TARGET_BYTES_BIG_ENDIAN 1 | |
37 | #endif | |
38 | ||
39 | #define TARGET_ARCH bfd_arch_mips | |
40 | ||
252b5132 RH |
41 | #define WORKING_DOT_WORD 1 |
42 | #define OLD_FLOAT_READS | |
43 | #define REPEAT_CONS_EXPRESSIONS | |
44 | #define RELOC_EXPANSION_POSSIBLE | |
45 | #define MAX_RELOC_EXPANSION 3 | |
46 | #define LOCAL_LABELS_FB 1 | |
47 | ||
48 | /* Maximum symbol offset that can be encoded in a BFD_RELOC_MIPS_GPREL | |
49 | relocation: */ | |
50 | #define MAX_GPREL_OFFSET (0x7FF4) | |
51 | ||
52 | #define md_relax_frag(fragp, stretch) mips_relax_frag(fragp, stretch) | |
53 | extern int mips_relax_frag PARAMS ((struct frag *, long)); | |
54 | ||
55 | #define md_undefined_symbol(name) (0) | |
56 | #define md_operand(x) | |
57 | ||
0a9ef439 RH |
58 | extern void mips_handle_align PARAMS ((struct frag *)); |
59 | #define HANDLE_ALIGN(fragp) mips_handle_align (fragp) | |
60 | ||
61 | #define MAX_MEM_FOR_RS_ALIGN_CODE (1 + 2) | |
a19d8eb0 | 62 | |
252b5132 RH |
63 | /* We permit PC relative difference expressions when generating |
64 | embedded PIC code. */ | |
65 | #define DIFF_EXPR_OK | |
66 | ||
82efde3a | 67 | /* Tell assembler that we have an itbl_mips.h header file to include. */ |
252b5132 RH |
68 | #define HAVE_ITBL_CPU |
69 | ||
70 | /* The endianness of the target format may change based on command | |
71 | line arguments. */ | |
72 | #define TARGET_FORMAT mips_target_format() | |
73 | extern const char *mips_target_format PARAMS ((void)); | |
74 | ||
75 | struct mips_cl_insn | |
76 | { | |
77 | unsigned long insn_opcode; | |
78 | const struct mips_opcode *insn_mo; | |
79 | /* The next two fields are used when generating mips16 code. */ | |
80 | boolean use_extend; | |
81 | unsigned short extend; | |
82 | }; | |
83 | ||
84 | extern int tc_get_register PARAMS ((int frame)); | |
85 | ||
86 | #define tc_init_after_args() mips_init_after_args() | |
87 | extern void mips_init_after_args PARAMS ((void)); | |
88 | ||
89 | #define md_parse_long_option(arg) mips_parse_long_option (arg) | |
90 | extern int mips_parse_long_option PARAMS ((const char *)); | |
91 | ||
92 | #define tc_frob_label(sym) mips_define_label (sym) | |
49309057 | 93 | extern void mips_define_label PARAMS ((symbolS *)); |
252b5132 RH |
94 | |
95 | #define tc_frob_file_before_adjust() mips_frob_file_before_adjust () | |
96 | extern void mips_frob_file_before_adjust PARAMS ((void)); | |
97 | ||
98 | #define tc_frob_file() mips_frob_file () | |
99 | extern void mips_frob_file PARAMS ((void)); | |
100 | ||
101 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
102 | #define tc_frob_file_after_relocs mips_frob_file_after_relocs | |
103 | extern void mips_frob_file_after_relocs PARAMS ((void)); | |
104 | #endif | |
105 | ||
106 | #define TC_CONS_FIX_NEW cons_fix_new_mips | |
107 | extern void cons_fix_new_mips | |
108 | PARAMS ((struct frag *, int, unsigned int, struct expressionS *)); | |
109 | ||
110 | #define tc_fix_adjustable(fixp) mips_fix_adjustable (fixp) | |
111 | extern int mips_fix_adjustable PARAMS ((struct fix *)); | |
112 | ||
113 | /* When generating embedded PIC code we must keep PC relative | |
114 | relocations. */ | |
115 | #define TC_FORCE_RELOCATION(fixp) mips_force_relocation (fixp) | |
116 | extern int mips_force_relocation PARAMS ((struct fix *)); | |
117 | ||
118 | /* md_apply_fix sets fx_done correctly. */ | |
119 | #define TC_HANDLE_FX_DONE 1 | |
120 | ||
121 | /* Register mask variables. These are set by the MIPS assembly code | |
122 | and used by ECOFF and possibly other object file formats. */ | |
123 | extern unsigned long mips_gprmask; | |
124 | extern unsigned long mips_cprmask[4]; | |
125 | ||
126 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
127 | ||
128 | #define elf_tc_final_processing mips_elf_final_processing | |
129 | extern void mips_elf_final_processing PARAMS ((void)); | |
130 | ||
131 | #define ELF_TC_SPECIAL_SECTIONS \ | |
132 | { ".sdata", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ | |
133 | { ".sbss", SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ | |
134 | { ".lit4", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ | |
135 | { ".lit8", SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_MIPS_GPREL }, \ | |
136 | { ".ucode", SHT_MIPS_UCODE, 0 }, \ | |
137 | { ".mdebug", SHT_MIPS_DEBUG, 0 }, | |
138 | /* Other special sections not generated by the assembler: .reginfo, | |
139 | .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn. */ | |
140 | ||
141 | #endif | |
142 | ||
143 | extern void md_mips_end PARAMS ((void)); | |
144 | #define md_end() md_mips_end() | |
145 | ||
146 | #define USE_GLOBAL_POINTER_OPT (OUTPUT_FLAVOR == bfd_target_ecoff_flavour \ | |
056350c6 | 147 | || OUTPUT_FLAVOR == bfd_target_coff_flavour \ |
252b5132 RH |
148 | || OUTPUT_FLAVOR == bfd_target_elf_flavour) |
149 | ||
150 | extern void mips_pop_insert PARAMS ((void)); | |
151 | #define md_pop_insert() mips_pop_insert() | |
152 | ||
153 | extern void mips_flush_pending_output PARAMS ((void)); | |
154 | #define md_flush_pending_output mips_flush_pending_output | |
155 | ||
156 | extern void mips_enable_auto_align PARAMS ((void)); | |
157 | #define md_elf_section_change_hook() mips_enable_auto_align() | |
158 | ||
159 | #endif /* TC_MIPS */ |