Move entry for modification to dwarf2.h (for adding ability to report
[deliverable/binutils-gdb.git] / include / dis-asm.h
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252b5132 1/* Interface between the opcode library and its callers.
4f1d9bd8 2
1c0d3aa6 3 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
c3aa17e9 4 Free Software Foundation, Inc.
d70c5fc7 5
4f1d9bd8
NC
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
9 any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
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18 Foundation, Inc., 51 Franklin Street - Fifth Floor,
19 Boston, MA 02110-1301, USA.
d70c5fc7 20
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21 Written by Cygnus Support, 1993.
22
23 The opcode library (libopcodes.a) provides instruction decoders for
24 a large variety of instruction sets, callable with an identical
25 interface, for making instruction-processing programs more independent
26 of the instruction set being processed. */
27
28#ifndef DIS_ASM_H
29#define DIS_ASM_H
30
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31#ifdef __cplusplus
32extern "C" {
33#endif
34
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35#include <stdio.h>
36#include "bfd.h"
37
d6eafc3e 38 typedef int (*fprintf_ftype) (void *, const char*, ...) /*ATTRIBUTE_FPTR_PRINTF_2*/;
252b5132 39
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40enum dis_insn_type
41{
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42 dis_noninsn, /* Not a valid instruction */
43 dis_nonbranch, /* Not a branch instruction */
44 dis_branch, /* Unconditional branch */
45 dis_condbranch, /* Conditional branch */
46 dis_jsr, /* Jump to subroutine */
47 dis_condjsr, /* Conditional jump to subroutine */
48 dis_dref, /* Data reference instruction */
49 dis_dref2 /* Two data references in instruction */
50};
51
d70c5fc7 52/* This struct is passed into the instruction decoding routine,
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RH
53 and is passed back out into each callback. The various fields are used
54 for conveying information from your main routine into your callbacks,
55 for passing information into the instruction decoders (such as the
56 addresses of the callback functions), or for passing information
57 back from the instruction decoders to their callers.
58
59 It must be initialized before it is first passed; this can be done
60 by hand, or using one of the initialization macros below. */
61
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62typedef struct disassemble_info
63{
252b5132 64 fprintf_ftype fprintf_func;
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65 void *stream;
66 void *application_data;
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67
68 /* Target description. We could replace this with a pointer to the bfd,
69 but that would require one. There currently isn't any such requirement
70 so to avoid introducing one we record these explicitly. */
71 /* The bfd_flavour. This can be bfd_target_unknown_flavour. */
72 enum bfd_flavour flavour;
73 /* The bfd_arch value. */
74 enum bfd_architecture arch;
75 /* The bfd_mach value. */
76 unsigned long mach;
77 /* Endianness (for bi-endian cpus). Mono-endian cpus can ignore this. */
78 enum bfd_endian endian;
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79 /* An arch/mach-specific bitmask of selected instruction subsets, mainly
80 for processors with run-time-switchable instruction sets. The default,
81 zero, means that there is no constraint. CGEN-based opcodes ports
82 may use ISA_foo masks. */
16175d96 83 void *insn_sets;
252b5132 84
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85 /* Some targets need information about the current section to accurately
86 display insns. If this is NULL, the target disassembler function
87 will have to make its best guess. */
88 asection *section;
89
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90 /* An array of pointers to symbols either at the location being disassembled
91 or at the start of the function being disassembled. The array is sorted
92 so that the first symbol is intended to be the one used. The others are
93 present for any misc. purposes. This is not set reliably, but if it is
94 not NULL, it is correct. */
95 asymbol **symbols;
96 /* Number of symbols in array. */
97 int num_symbols;
98
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99 /* Symbol table provided for targets that want to look at it. This is
100 used on Arm to find mapping symbols and determine Arm/Thumb code. */
101 asymbol **symtab;
102 int symtab_pos;
103 int symtab_size;
104
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105 /* For use by the disassembler.
106 The top 16 bits are reserved for public use (and are documented here).
107 The bottom 16 bits are for the internal use of the disassembler. */
108 unsigned long flags;
109#define INSN_HAS_RELOC 0x80000000
8cf3f354 110 void *private_data;
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111
112 /* Function used to get bytes to disassemble. MEMADDR is the
113 address of the stuff to be disassembled, MYADDR is the address to
114 put the bytes in, and LENGTH is the number of bytes to read.
115 INFO is a pointer to this struct.
116 Returns an errno value or 0 for success. */
117 int (*read_memory_func)
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118 (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
119 struct disassemble_info *info);
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120
121 /* Function which should be called if we get an error that we can't
122 recover from. STATUS is the errno value from read_memory_func and
123 MEMADDR is the address that we were trying to read. INFO is a
124 pointer to this struct. */
125 void (*memory_error_func)
8cf3f354 126 (int status, bfd_vma memaddr, struct disassemble_info *info);
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127
128 /* Function called to print ADDR. */
129 void (*print_address_func)
8cf3f354 130 (bfd_vma addr, struct disassemble_info *info);
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131
132 /* Function called to determine if there is a symbol at the given ADDR.
133 If there is, the function returns 1, otherwise it returns 0.
134 This is used by ports which support an overlay manager where
135 the overlay number is held in the top part of an address. In
136 some circumstances we want to include the overlay number in the
137 address, (normally because there is a symbol associated with
138 that address), but sometimes we want to mask out the overlay bits. */
139 int (* symbol_at_address_func)
8cf3f354 140 (bfd_vma addr, struct disassemble_info * info);
252b5132 141
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142 /* Function called to check if a SYMBOL is can be displayed to the user.
143 This is used by some ports that want to hide special symbols when
144 displaying debugging outout. */
145 bfd_boolean (* symbol_is_valid)
146 (asymbol *, struct disassemble_info * info);
d70c5fc7 147
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148 /* These are for buffer_read_memory. */
149 bfd_byte *buffer;
150 bfd_vma buffer_vma;
f6af82bd 151 unsigned int buffer_length;
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152
153 /* This variable may be set by the instruction decoder. It suggests
154 the number of bytes objdump should display on a single line. If
155 the instruction decoder sets this, it should always set it to
156 the same value in order to get reasonable looking output. */
157 int bytes_per_line;
158
22a398e1 159 /* The next two variables control the way objdump displays the raw data. */
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160 /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
161 /* output will look like this:
162 00: 00000000 00000000
163 with the chunks displayed according to "display_endian". */
164 int bytes_per_chunk;
165 enum bfd_endian display_endian;
166
d70c5fc7 167 /* Number of octets per incremented target address
3c3bdf30 168 Normally one, but some DSPs have byte sizes of 16 or 32 bits. */
f6af82bd 169 unsigned int octets_per_byte;
940b2b78 170
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171 /* The number of zeroes we want to see at the end of a section before we
172 start skipping them. */
173 unsigned int skip_zeroes;
174
175 /* The number of zeroes to skip at the end of a section. If the number
176 of zeroes at the end is between SKIP_ZEROES_AT_END and SKIP_ZEROES,
177 they will be disassembled. If there are fewer than
178 SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
179 attempt to avoid disassembling zeroes inserted by section
180 alignment. */
181 unsigned int skip_zeroes_at_end;
182
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183 /* Whether the disassembler always needs the relocations. */
184 bfd_boolean disassembler_needs_relocs;
185
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186 /* Results from instruction decoders. Not all decoders yet support
187 this information. This info is set each time an instruction is
188 decoded, and is only valid for the last such instruction.
189
190 To determine whether this decoder supports this information, set
191 insn_info_valid to 0, decode an instruction, then check it. */
192
193 char insn_info_valid; /* Branch info has been set. */
194 char branch_delay_insns; /* How many sequential insn's will run before
195 a branch takes effect. (0 = normal) */
196 char data_size; /* Size of data reference in insn, in bytes */
197 enum dis_insn_type insn_type; /* Type of instruction */
198 bfd_vma target; /* Target address of branch or dref, if known;
199 zero if unknown. */
200 bfd_vma target2; /* Second target address for dref2 */
201
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202 /* Command line options specific to the target disassembler. */
203 char * disassembler_options;
204
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205} disassemble_info;
206
207\f
208/* Standard disassemblers. Disassemble one instruction at the given
19222dc0 209 target address. Return number of octets processed. */
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210typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
211
8cf3f354 212extern int print_insn_alpha (bfd_vma, disassemble_info *);
8cf3f354 213extern int print_insn_avr (bfd_vma, disassemble_info *);
dc603df5 214extern int print_insn_bfin (bfd_vma, disassemble_info *);
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215extern int print_insn_big_arm (bfd_vma, disassemble_info *);
216extern int print_insn_big_mips (bfd_vma, disassemble_info *);
217extern int print_insn_big_or32 (bfd_vma, disassemble_info *);
218extern int print_insn_big_powerpc (bfd_vma, disassemble_info *);
219extern int print_insn_big_score (bfd_vma, disassemble_info *);
220extern int print_insn_crx (bfd_vma, disassemble_info *);
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221extern int print_insn_d10v (bfd_vma, disassemble_info *);
222extern int print_insn_d30v (bfd_vma, disassemble_info *);
223extern int print_insn_dlx (bfd_vma, disassemble_info *);
224extern int print_insn_fr30 (bfd_vma, disassemble_info *);
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225extern int print_insn_frv (bfd_vma, disassemble_info *);
226extern int print_insn_h8300 (bfd_vma, disassemble_info *);
227extern int print_insn_h8300h (bfd_vma, disassemble_info *);
228extern int print_insn_h8300s (bfd_vma, disassemble_info *);
229extern int print_insn_h8500 (bfd_vma, disassemble_info *);
8cf3f354 230extern int print_insn_hppa (bfd_vma, disassemble_info *);
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231extern int print_insn_i370 (bfd_vma, disassemble_info *);
232extern int print_insn_i386 (bfd_vma, disassemble_info *);
233extern int print_insn_i386_att (bfd_vma, disassemble_info *);
234extern int print_insn_i386_intel (bfd_vma, disassemble_info *);
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235extern int print_insn_i860 (bfd_vma, disassemble_info *);
236extern int print_insn_i960 (bfd_vma, disassemble_info *);
1c0d3aa6 237extern int print_insn_ia64 (bfd_vma, disassemble_info *);
8cf3f354 238extern int print_insn_ip2k (bfd_vma, disassemble_info *);
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239extern int print_insn_iq2000 (bfd_vma, disassemble_info *);
240extern int print_insn_little_arm (bfd_vma, disassemble_info *);
241extern int print_insn_little_mips (bfd_vma, disassemble_info *);
242extern int print_insn_little_or32 (bfd_vma, disassemble_info *);
243extern int print_insn_little_powerpc (bfd_vma, disassemble_info *);
244extern int print_insn_little_score (bfd_vma, disassemble_info *);
245extern int print_insn_m32c (bfd_vma, disassemble_info *);
8cf3f354 246extern int print_insn_m32r (bfd_vma, disassemble_info *);
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247extern int print_insn_m68hc11 (bfd_vma, disassemble_info *);
248extern int print_insn_m68hc12 (bfd_vma, disassemble_info *);
249extern int print_insn_m68k (bfd_vma, disassemble_info *);
8cf3f354 250extern int print_insn_m88k (bfd_vma, disassemble_info *);
7499d566 251extern int print_insn_maxq_big (bfd_vma, disassemble_info *);
1c0d3aa6 252extern int print_insn_maxq_little (bfd_vma, disassemble_info *);
8cf3f354 253extern int print_insn_mcore (bfd_vma, disassemble_info *);
d6eafc3e 254extern int print_insn_mep (bfd_vma, disassemble_info *);
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AM
255extern int print_insn_mmix (bfd_vma, disassemble_info *);
256extern int print_insn_mn10200 (bfd_vma, disassemble_info *);
257extern int print_insn_mn10300 (bfd_vma, disassemble_info *);
258extern int print_insn_msp430 (bfd_vma, disassemble_info *);
1c0d3aa6 259extern int print_insn_mt (bfd_vma, disassemble_info *);
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260extern int print_insn_ns32k (bfd_vma, disassemble_info *);
261extern int print_insn_openrisc (bfd_vma, disassemble_info *);
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262extern int print_insn_pdp11 (bfd_vma, disassemble_info *);
263extern int print_insn_pj (bfd_vma, disassemble_info *);
8cf3f354 264extern int print_insn_rs6000 (bfd_vma, disassemble_info *);
d70c5fc7 265extern int print_insn_s390 (bfd_vma, disassemble_info *);
8cf3f354 266extern int print_insn_sh (bfd_vma, disassemble_info *);
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267extern int print_insn_sh64 (bfd_vma, disassemble_info *);
268extern int print_insn_sh64x_media (bfd_vma, disassemble_info *);
269extern int print_insn_sparc (bfd_vma, disassemble_info *);
e9f53129 270extern int print_insn_spu (bfd_vma, disassemble_info *);
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271extern int print_insn_tic30 (bfd_vma, disassemble_info *);
272extern int print_insn_tic4x (bfd_vma, disassemble_info *);
273extern int print_insn_tic54x (bfd_vma, disassemble_info *);
274extern int print_insn_tic80 (bfd_vma, disassemble_info *);
275extern int print_insn_v850 (bfd_vma, disassemble_info *);
276extern int print_insn_vax (bfd_vma, disassemble_info *);
277extern int print_insn_w65 (bfd_vma, disassemble_info *);
1c0d3aa6 278extern int print_insn_xc16x (bfd_vma, disassemble_info *);
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279extern int print_insn_xstormy16 (bfd_vma, disassemble_info *);
280extern int print_insn_xtensa (bfd_vma, disassemble_info *);
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281extern int print_insn_z80 (bfd_vma, disassemble_info *);
282extern int print_insn_z8001 (bfd_vma, disassemble_info *);
283extern int print_insn_z8002 (bfd_vma, disassemble_info *);
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284
285extern disassembler_ftype arc_get_disassembler (void *);
286extern disassembler_ftype cris_get_disassembler (bfd *);
287
f59a29b9 288extern void print_i386_disassembler_options (FILE *);
8cf3f354
AM
289extern void print_mips_disassembler_options (FILE *);
290extern void print_ppc_disassembler_options (FILE *);
291extern void print_arm_disassembler_options (FILE *);
292extern void parse_arm_disassembler_option (char *);
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293extern int get_arm_regname_num_options (void);
294extern int set_arm_regname_option (int);
295extern int get_arm_regnames (int, const char **, const char **, const char *const **);
22a398e1 296extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
dd92f639 297
252b5132 298/* Fetch the disassembler for a given BFD, if that support is available. */
8cf3f354 299extern disassembler_ftype disassembler (bfd *);
252b5132 300
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NC
301/* Amend the disassemble_info structure as necessary for the target architecture.
302 Should only be called after initialising the info->arch field. */
303extern void disassemble_init_for_target (struct disassemble_info * info);
304
94470b23 305/* Document any target specific options available from the disassembler. */
8cf3f354 306extern void disassembler_usage (FILE *);
94470b23 307
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RH
308\f
309/* This block of definitions is for particular callers who read instructions
310 into a buffer before calling the instruction decoder. */
311
312/* Here is a function which callers may wish to use for read_memory_func.
313 It gets bytes from a buffer. */
314extern int buffer_read_memory
8cf3f354 315 (bfd_vma, bfd_byte *, unsigned int, struct disassemble_info *);
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316
317/* This function goes with buffer_read_memory.
318 It prints a message using info->fprintf_func and info->stream. */
8cf3f354 319extern void perror_memory (int, bfd_vma, struct disassemble_info *);
252b5132
RH
320
321
322/* Just print the address in hex. This is included for completeness even
323 though both GDB and objdump provide their own (to print symbolic
324 addresses). */
325extern void generic_print_address
8cf3f354 326 (bfd_vma, struct disassemble_info *);
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327
328/* Always true. */
329extern int generic_symbol_at_address
8cf3f354 330 (bfd_vma, struct disassemble_info *);
252b5132 331
d70c5fc7 332/* Also always true. */
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333extern bfd_boolean generic_symbol_is_valid
334 (asymbol *, struct disassemble_info *);
d70c5fc7 335
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336/* Method to initialize a disassemble_info struct. This should be
337 called by all applications creating such a struct. */
338extern void init_disassemble_info (struct disassemble_info *info, void *stream,
339 fprintf_ftype fprintf_func);
252b5132 340
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AC
341/* For compatibility with existing code. */
342#define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
343 init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
252b5132 344#define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
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345 init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
346
252b5132 347
7d7a6736 348#ifdef __cplusplus
8418f5ff 349}
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350#endif
351
252b5132 352#endif /* ! defined (DIS_ASM_H) */
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