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252b5132 1/* Interface between the opcode library and its callers.
4f1d9bd8 2
b90efa5b 3 Copyright (C) 1999-2015 Free Software Foundation, Inc.
d70c5fc7 4
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5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
e4e42b45 7 the Free Software Foundation; either version 3, or (at your option)
4f1d9bd8
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8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
e172dbf8
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17 Foundation, Inc., 51 Franklin Street - Fifth Floor,
18 Boston, MA 02110-1301, USA.
d70c5fc7 19
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20 Written by Cygnus Support, 1993.
21
22 The opcode library (libopcodes.a) provides instruction decoders for
23 a large variety of instruction sets, callable with an identical
24 interface, for making instruction-processing programs more independent
25 of the instruction set being processed. */
26
27#ifndef DIS_ASM_H
28#define DIS_ASM_H
29
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30#ifdef __cplusplus
31extern "C" {
32#endif
33
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34#include <stdio.h>
35#include "bfd.h"
36
d908c8af 37 typedef int (*fprintf_ftype) (void *, const char*, ...) ATTRIBUTE_FPTR_PRINTF_2;
252b5132 38
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39enum dis_insn_type
40{
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41 dis_noninsn, /* Not a valid instruction. */
42 dis_nonbranch, /* Not a branch instruction. */
43 dis_branch, /* Unconditional branch. */
44 dis_condbranch, /* Conditional branch. */
45 dis_jsr, /* Jump to subroutine. */
46 dis_condjsr, /* Conditional jump to subroutine. */
47 dis_dref, /* Data reference instruction. */
48 dis_dref2 /* Two data references in instruction. */
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49};
50
d70c5fc7 51/* This struct is passed into the instruction decoding routine,
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52 and is passed back out into each callback. The various fields are used
53 for conveying information from your main routine into your callbacks,
54 for passing information into the instruction decoders (such as the
55 addresses of the callback functions), or for passing information
56 back from the instruction decoders to their callers.
57
58 It must be initialized before it is first passed; this can be done
59 by hand, or using one of the initialization macros below. */
60
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61typedef struct disassemble_info
62{
252b5132 63 fprintf_ftype fprintf_func;
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64 void *stream;
65 void *application_data;
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66
67 /* Target description. We could replace this with a pointer to the bfd,
68 but that would require one. There currently isn't any such requirement
69 so to avoid introducing one we record these explicitly. */
70 /* The bfd_flavour. This can be bfd_target_unknown_flavour. */
71 enum bfd_flavour flavour;
72 /* The bfd_arch value. */
73 enum bfd_architecture arch;
74 /* The bfd_mach value. */
75 unsigned long mach;
76 /* Endianness (for bi-endian cpus). Mono-endian cpus can ignore this. */
77 enum bfd_endian endian;
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78 /* Endianness of code, for mixed-endian situations such as ARM BE8. */
79 enum bfd_endian endian_code;
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80 /* An arch/mach-specific bitmask of selected instruction subsets, mainly
81 for processors with run-time-switchable instruction sets. The default,
82 zero, means that there is no constraint. CGEN-based opcodes ports
83 may use ISA_foo masks. */
16175d96 84 void *insn_sets;
252b5132 85
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86 /* Some targets need information about the current section to accurately
87 display insns. If this is NULL, the target disassembler function
88 will have to make its best guess. */
89 asection *section;
90
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91 /* An array of pointers to symbols either at the location being disassembled
92 or at the start of the function being disassembled. The array is sorted
93 so that the first symbol is intended to be the one used. The others are
94 present for any misc. purposes. This is not set reliably, but if it is
95 not NULL, it is correct. */
96 asymbol **symbols;
97 /* Number of symbols in array. */
98 int num_symbols;
99
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100 /* Symbol table provided for targets that want to look at it. This is
101 used on Arm to find mapping symbols and determine Arm/Thumb code. */
102 asymbol **symtab;
103 int symtab_pos;
104 int symtab_size;
105
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106 /* For use by the disassembler.
107 The top 16 bits are reserved for public use (and are documented here).
108 The bottom 16 bits are for the internal use of the disassembler. */
109 unsigned long flags;
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110 /* Set if the disassembler has determined that there are one or more
111 relocations associated with the instruction being disassembled. */
112#define INSN_HAS_RELOC (1 << 31)
113 /* Set if the user has requested the disassembly of data as well as code. */
114#define DISASSEMBLE_DATA (1 << 30)
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115 /* Set if the user has specifically set the machine type encoded in the
116 mach field of this structure. */
117#define USER_SPECIFIED_MACHINE_TYPE (1 << 29)
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118
119 /* Use internally by the target specific disassembly code. */
8cf3f354 120 void *private_data;
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121
122 /* Function used to get bytes to disassemble. MEMADDR is the
123 address of the stuff to be disassembled, MYADDR is the address to
124 put the bytes in, and LENGTH is the number of bytes to read.
125 INFO is a pointer to this struct.
126 Returns an errno value or 0 for success. */
127 int (*read_memory_func)
8cf3f354 128 (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
e7f8eadb 129 struct disassemble_info *dinfo);
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130
131 /* Function which should be called if we get an error that we can't
132 recover from. STATUS is the errno value from read_memory_func and
133 MEMADDR is the address that we were trying to read. INFO is a
134 pointer to this struct. */
135 void (*memory_error_func)
e7f8eadb 136 (int status, bfd_vma memaddr, struct disassemble_info *dinfo);
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137
138 /* Function called to print ADDR. */
139 void (*print_address_func)
e7f8eadb 140 (bfd_vma addr, struct disassemble_info *dinfo);
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141
142 /* Function called to determine if there is a symbol at the given ADDR.
143 If there is, the function returns 1, otherwise it returns 0.
144 This is used by ports which support an overlay manager where
145 the overlay number is held in the top part of an address. In
146 some circumstances we want to include the overlay number in the
147 address, (normally because there is a symbol associated with
148 that address), but sometimes we want to mask out the overlay bits. */
149 int (* symbol_at_address_func)
e7f8eadb 150 (bfd_vma addr, struct disassemble_info *dinfo);
252b5132 151
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152 /* Function called to check if a SYMBOL is can be displayed to the user.
153 This is used by some ports that want to hide special symbols when
154 displaying debugging outout. */
155 bfd_boolean (* symbol_is_valid)
e7f8eadb 156 (asymbol *, struct disassemble_info *dinfo);
d70c5fc7 157
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158 /* These are for buffer_read_memory. */
159 bfd_byte *buffer;
160 bfd_vma buffer_vma;
f6af82bd 161 unsigned int buffer_length;
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162
163 /* This variable may be set by the instruction decoder. It suggests
164 the number of bytes objdump should display on a single line. If
165 the instruction decoder sets this, it should always set it to
166 the same value in order to get reasonable looking output. */
167 int bytes_per_line;
168
22a398e1 169 /* The next two variables control the way objdump displays the raw data. */
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170 /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
171 /* output will look like this:
172 00: 00000000 00000000
173 with the chunks displayed according to "display_endian". */
174 int bytes_per_chunk;
175 enum bfd_endian display_endian;
176
d70c5fc7 177 /* Number of octets per incremented target address
3c3bdf30 178 Normally one, but some DSPs have byte sizes of 16 or 32 bits. */
f6af82bd 179 unsigned int octets_per_byte;
940b2b78 180
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181 /* The number of zeroes we want to see at the end of a section before we
182 start skipping them. */
183 unsigned int skip_zeroes;
184
185 /* The number of zeroes to skip at the end of a section. If the number
186 of zeroes at the end is between SKIP_ZEROES_AT_END and SKIP_ZEROES,
187 they will be disassembled. If there are fewer than
188 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
189 attempt to avoid disassembling zeroes inserted by section
190 alignment. */
191 unsigned int skip_zeroes_at_end;
192
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193 /* Whether the disassembler always needs the relocations. */
194 bfd_boolean disassembler_needs_relocs;
195
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196 /* Results from instruction decoders. Not all decoders yet support
197 this information. This info is set each time an instruction is
198 decoded, and is only valid for the last such instruction.
199
200 To determine whether this decoder supports this information, set
201 insn_info_valid to 0, decode an instruction, then check it. */
202
203 char insn_info_valid; /* Branch info has been set. */
204 char branch_delay_insns; /* How many sequential insn's will run before
205 a branch takes effect. (0 = normal) */
206 char data_size; /* Size of data reference in insn, in bytes */
207 enum dis_insn_type insn_type; /* Type of instruction */
208 bfd_vma target; /* Target address of branch or dref, if known;
209 zero if unknown. */
210 bfd_vma target2; /* Second target address for dref2 */
211
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212 /* Command line options specific to the target disassembler. */
213 char * disassembler_options;
214
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215} disassemble_info;
216
217\f
218/* Standard disassemblers. Disassemble one instruction at the given
19222dc0 219 target address. Return number of octets processed. */
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220typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
221
a06ea964 222extern int print_insn_aarch64 (bfd_vma, disassemble_info *);
8cf3f354 223extern int print_insn_alpha (bfd_vma, disassemble_info *);
8cf3f354 224extern int print_insn_avr (bfd_vma, disassemble_info *);
dc603df5 225extern int print_insn_bfin (bfd_vma, disassemble_info *);
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226extern int print_insn_big_arm (bfd_vma, disassemble_info *);
227extern int print_insn_big_mips (bfd_vma, disassemble_info *);
36591ba1 228extern int print_insn_big_nios2 (bfd_vma, disassemble_info *);
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229extern int print_insn_big_powerpc (bfd_vma, disassemble_info *);
230extern int print_insn_big_score (bfd_vma, disassemble_info *);
3d3d428f 231extern int print_insn_cr16 (bfd_vma, disassemble_info *);
1c0d3aa6 232extern int print_insn_crx (bfd_vma, disassemble_info *);
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233extern int print_insn_d10v (bfd_vma, disassemble_info *);
234extern int print_insn_d30v (bfd_vma, disassemble_info *);
235extern int print_insn_dlx (bfd_vma, disassemble_info *);
cfb8c092 236extern int print_insn_epiphany (bfd_vma, disassemble_info *);
8cf3f354 237extern int print_insn_fr30 (bfd_vma, disassemble_info *);
1c0d3aa6 238extern int print_insn_frv (bfd_vma, disassemble_info *);
3f8107ab 239extern int print_insn_ft32 (bfd_vma, disassemble_info *);
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240extern int print_insn_h8300 (bfd_vma, disassemble_info *);
241extern int print_insn_h8300h (bfd_vma, disassemble_info *);
242extern int print_insn_h8300s (bfd_vma, disassemble_info *);
243extern int print_insn_h8500 (bfd_vma, disassemble_info *);
8cf3f354 244extern int print_insn_hppa (bfd_vma, disassemble_info *);
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245extern int print_insn_i370 (bfd_vma, disassemble_info *);
246extern int print_insn_i386 (bfd_vma, disassemble_info *);
247extern int print_insn_i386_att (bfd_vma, disassemble_info *);
248extern int print_insn_i386_intel (bfd_vma, disassemble_info *);
8cf3f354
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249extern int print_insn_i860 (bfd_vma, disassemble_info *);
250extern int print_insn_i960 (bfd_vma, disassemble_info *);
1c0d3aa6 251extern int print_insn_ia64 (bfd_vma, disassemble_info *);
8cf3f354 252extern int print_insn_ip2k (bfd_vma, disassemble_info *);
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253extern int print_insn_iq2000 (bfd_vma, disassemble_info *);
254extern int print_insn_little_arm (bfd_vma, disassemble_info *);
255extern int print_insn_little_mips (bfd_vma, disassemble_info *);
36591ba1 256extern int print_insn_little_nios2 (bfd_vma, disassemble_info *);
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257extern int print_insn_little_powerpc (bfd_vma, disassemble_info *);
258extern int print_insn_little_score (bfd_vma, disassemble_info *);
84e94c90 259extern int print_insn_lm32 (bfd_vma, disassemble_info *);
1c0d3aa6 260extern int print_insn_m32c (bfd_vma, disassemble_info *);
8cf3f354 261extern int print_insn_m32r (bfd_vma, disassemble_info *);
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262extern int print_insn_m68hc11 (bfd_vma, disassemble_info *);
263extern int print_insn_m68hc12 (bfd_vma, disassemble_info *);
6927f982
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264extern int print_insn_m9s12x (bfd_vma, disassemble_info *);
265extern int print_insn_m9s12xg (bfd_vma, disassemble_info *);
1c0d3aa6 266extern int print_insn_m68k (bfd_vma, disassemble_info *);
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267extern int print_insn_m88k (bfd_vma, disassemble_info *);
268extern int print_insn_mcore (bfd_vma, disassemble_info *);
d6eafc3e 269extern int print_insn_mep (bfd_vma, disassemble_info *);
a3c62988 270extern int print_insn_metag (bfd_vma, disassemble_info *);
7ba29e2a 271extern int print_insn_microblaze (bfd_vma, disassemble_info *);
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272extern int print_insn_mmix (bfd_vma, disassemble_info *);
273extern int print_insn_mn10200 (bfd_vma, disassemble_info *);
274extern int print_insn_mn10300 (bfd_vma, disassemble_info *);
20135e4c 275extern int print_insn_moxie (bfd_vma, disassemble_info *);
8cf3f354 276extern int print_insn_msp430 (bfd_vma, disassemble_info *);
1c0d3aa6 277extern int print_insn_mt (bfd_vma, disassemble_info *);
35c08157 278extern int print_insn_nds32 (bfd_vma, disassemble_info *);
8cf3f354 279extern int print_insn_ns32k (bfd_vma, disassemble_info *);
73589c9d 280extern int print_insn_or1k (bfd_vma, disassemble_info *);
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281extern int print_insn_pdp11 (bfd_vma, disassemble_info *);
282extern int print_insn_pj (bfd_vma, disassemble_info *);
8cf3f354 283extern int print_insn_rs6000 (bfd_vma, disassemble_info *);
d70c5fc7 284extern int print_insn_s390 (bfd_vma, disassemble_info *);
8cf3f354 285extern int print_insn_sh (bfd_vma, disassemble_info *);
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286extern int print_insn_sh64 (bfd_vma, disassemble_info *);
287extern int print_insn_sh64x_media (bfd_vma, disassemble_info *);
288extern int print_insn_sparc (bfd_vma, disassemble_info *);
e9f53129 289extern int print_insn_spu (bfd_vma, disassemble_info *);
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290extern int print_insn_tic30 (bfd_vma, disassemble_info *);
291extern int print_insn_tic4x (bfd_vma, disassemble_info *);
292extern int print_insn_tic54x (bfd_vma, disassemble_info *);
40b36596 293extern int print_insn_tic6x (bfd_vma, disassemble_info *);
8cf3f354 294extern int print_insn_tic80 (bfd_vma, disassemble_info *);
aa137e4d
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295extern int print_insn_tilegx (bfd_vma, disassemble_info *);
296extern int print_insn_tilepro (bfd_vma, disassemble_info *);
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297extern int print_insn_v850 (bfd_vma, disassemble_info *);
298extern int print_insn_vax (bfd_vma, disassemble_info *);
1945cfa5 299extern int print_insn_visium (bfd_vma, disassemble_info *);
8cf3f354 300extern int print_insn_w65 (bfd_vma, disassemble_info *);
1c0d3aa6 301extern int print_insn_xc16x (bfd_vma, disassemble_info *);
f6c1a2d5 302extern int print_insn_xgate (bfd_vma, disassemble_info *);
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303extern int print_insn_xstormy16 (bfd_vma, disassemble_info *);
304extern int print_insn_xtensa (bfd_vma, disassemble_info *);
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305extern int print_insn_z80 (bfd_vma, disassemble_info *);
306extern int print_insn_z8001 (bfd_vma, disassemble_info *);
307extern int print_insn_z8002 (bfd_vma, disassemble_info *);
c7927a3c 308extern int print_insn_rx (bfd_vma, disassemble_info *);
99c513f6 309extern int print_insn_rl78 (bfd_vma, disassemble_info *);
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310extern int print_insn_rl78_g10 (bfd_vma, disassemble_info *);
311extern int print_insn_rl78_g13 (bfd_vma, disassemble_info *);
312extern int print_insn_rl78_g14 (bfd_vma, disassemble_info *);
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313
314extern disassembler_ftype arc_get_disassembler (void *);
315extern disassembler_ftype cris_get_disassembler (bfd *);
0952813b 316extern disassembler_ftype rl78_get_disassembler (bfd *);
8cf3f354 317
a06ea964 318extern void print_aarch64_disassembler_options (FILE *);
f59a29b9 319extern void print_i386_disassembler_options (FILE *);
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320extern void print_mips_disassembler_options (FILE *);
321extern void print_ppc_disassembler_options (FILE *);
322extern void print_arm_disassembler_options (FILE *);
323extern void parse_arm_disassembler_option (char *);
112b7c50 324extern void print_s390_disassembler_options (FILE *);
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325extern int get_arm_regname_num_options (void);
326extern int set_arm_regname_option (int);
327extern int get_arm_regnames (int, const char **, const char **, const char *const **);
a06ea964 328extern bfd_boolean aarch64_symbol_is_valid (asymbol *, struct disassemble_info *);
22a398e1 329extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
b240011a 330extern void disassemble_init_powerpc (struct disassemble_info *);
dd92f639 331
252b5132 332/* Fetch the disassembler for a given BFD, if that support is available. */
8cf3f354 333extern disassembler_ftype disassembler (bfd *);
252b5132 334
22a398e1
NC
335/* Amend the disassemble_info structure as necessary for the target architecture.
336 Should only be called after initialising the info->arch field. */
e7f8eadb 337extern void disassemble_init_for_target (struct disassemble_info * dinfo);
22a398e1 338
94470b23 339/* Document any target specific options available from the disassembler. */
8cf3f354 340extern void disassembler_usage (FILE *);
94470b23 341
252b5132
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342\f
343/* This block of definitions is for particular callers who read instructions
344 into a buffer before calling the instruction decoder. */
345
346/* Here is a function which callers may wish to use for read_memory_func.
347 It gets bytes from a buffer. */
348extern int buffer_read_memory
8cf3f354 349 (bfd_vma, bfd_byte *, unsigned int, struct disassemble_info *);
252b5132
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350
351/* This function goes with buffer_read_memory.
352 It prints a message using info->fprintf_func and info->stream. */
8cf3f354 353extern void perror_memory (int, bfd_vma, struct disassemble_info *);
252b5132
RH
354
355
356/* Just print the address in hex. This is included for completeness even
357 though both GDB and objdump provide their own (to print symbolic
358 addresses). */
359extern void generic_print_address
8cf3f354 360 (bfd_vma, struct disassemble_info *);
252b5132
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361
362/* Always true. */
363extern int generic_symbol_at_address
8cf3f354 364 (bfd_vma, struct disassemble_info *);
252b5132 365
d70c5fc7 366/* Also always true. */
22a398e1
NC
367extern bfd_boolean generic_symbol_is_valid
368 (asymbol *, struct disassemble_info *);
d70c5fc7 369
92c2346c
AC
370/* Method to initialize a disassemble_info struct. This should be
371 called by all applications creating such a struct. */
e7f8eadb 372extern void init_disassemble_info (struct disassemble_info *dinfo, void *stream,
92c2346c 373 fprintf_ftype fprintf_func);
252b5132 374
92c2346c
AC
375/* For compatibility with existing code. */
376#define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
377 init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
252b5132 378#define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
92c2346c
AC
379 init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
380
252b5132 381
7d7a6736 382#ifdef __cplusplus
8418f5ff 383}
7d7a6736
ILT
384#endif
385
252b5132 386#endif /* ! defined (DIS_ASM_H) */