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5191 serge 1
/* Interface between the opcode library and its callers.
2
 
6324 serge 3
   Copyright (C) 1999-2015 Free Software Foundation, Inc.
5191 serge 4
 
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
7
   the Free Software Foundation; either version 3, or (at your option)
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
17
   Foundation, Inc., 51 Franklin Street - Fifth Floor,
18
   Boston, MA 02110-1301, USA.
19
 
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
 
30
#ifdef __cplusplus
31
extern "C" {
32
#endif
33
 
34
#include 
35
#include "bfd.h"
36
 
37
  typedef int (*fprintf_ftype) (void *, const char*, ...) ATTRIBUTE_FPTR_PRINTF_2;
38
 
39
enum dis_insn_type
40
{
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.  */
49
};
50
 
51
/* This struct is passed into the instruction decoding routine,
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
 
61
typedef struct disassemble_info
62
{
63
  fprintf_ftype fprintf_func;
64
  void *stream;
65
  void *application_data;
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;
78
  /* Endianness of code, for mixed-endian situations such as ARM BE8.  */
79
  enum bfd_endian endian_code;
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.  */
84
  void *insn_sets;
85
 
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
 
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
 
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
 
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;
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)
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)
118
 
119
  /* Use internally by the target specific disassembly code.  */
120
  void *private_data;
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)
128
    (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
129
     struct disassemble_info *dinfo);
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)
136
    (int status, bfd_vma memaddr, struct disassemble_info *dinfo);
137
 
138
  /* Function called to print ADDR.  */
139
  void (*print_address_func)
140
    (bfd_vma addr, struct disassemble_info *dinfo);
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)
150
    (bfd_vma addr, struct disassemble_info *dinfo);
151
 
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)
156
    (asymbol *, struct disassemble_info *dinfo);
157
 
158
  /* These are for buffer_read_memory.  */
159
  bfd_byte *buffer;
160
  bfd_vma buffer_vma;
161
  unsigned int buffer_length;
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
 
169
  /* The next two variables control the way objdump displays the raw data.  */
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
 
177
  /* Number of octets per incremented target address
178
     Normally one, but some DSPs have byte sizes of 16 or 32 bits.  */
179
  unsigned int octets_per_byte;
180
 
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
 
193
  /* Whether the disassembler always needs the relocations.  */
194
  bfd_boolean disassembler_needs_relocs;
195
 
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
 
212
  /* Command line options specific to the target disassembler.  */
213
  char * disassembler_options;
214
 
6324 serge 215
  /* If non-zero then try not disassemble beyond this address, even if
216
     there are values left in the buffer.  This address is the address
217
     of the nearest symbol forwards from the start of the disassembly,
218
     and it is assumed that it lies on the boundary between instructions.
219
     If an instruction spans this address then this is an error in the
220
     file being disassembled.  */
221
  bfd_vma stop_vma;
222
 
5191 serge 223
} disassemble_info;
224
 
225
 
226
/* Standard disassemblers.  Disassemble one instruction at the given
227
   target address.  Return number of octets processed.  */
228
typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
229
 
230
extern int print_insn_aarch64		(bfd_vma, disassemble_info *);
231
extern int print_insn_alpha		(bfd_vma, disassemble_info *);
232
extern int print_insn_avr		(bfd_vma, disassemble_info *);
233
extern int print_insn_bfin		(bfd_vma, disassemble_info *);
234
extern int print_insn_big_arm		(bfd_vma, disassemble_info *);
235
extern int print_insn_big_mips		(bfd_vma, disassemble_info *);
236
extern int print_insn_big_nios2		(bfd_vma, disassemble_info *);
237
extern int print_insn_big_powerpc	(bfd_vma, disassemble_info *);
238
extern int print_insn_big_score         (bfd_vma, disassemble_info *);
239
extern int print_insn_cr16              (bfd_vma, disassemble_info *);
240
extern int print_insn_crx               (bfd_vma, disassemble_info *);
241
extern int print_insn_d10v		(bfd_vma, disassemble_info *);
242
extern int print_insn_d30v		(bfd_vma, disassemble_info *);
243
extern int print_insn_dlx 		(bfd_vma, disassemble_info *);
244
extern int print_insn_epiphany		(bfd_vma, disassemble_info *);
245
extern int print_insn_fr30		(bfd_vma, disassemble_info *);
246
extern int print_insn_frv		(bfd_vma, disassemble_info *);
6324 serge 247
extern int print_insn_ft32  		(bfd_vma, disassemble_info *);
5191 serge 248
extern int print_insn_h8300		(bfd_vma, disassemble_info *);
249
extern int print_insn_h8300h		(bfd_vma, disassemble_info *);
250
extern int print_insn_h8300s		(bfd_vma, disassemble_info *);
251
extern int print_insn_h8500		(bfd_vma, disassemble_info *);
252
extern int print_insn_hppa		(bfd_vma, disassemble_info *);
253
extern int print_insn_i370		(bfd_vma, disassemble_info *);
254
extern int print_insn_i386		(bfd_vma, disassemble_info *);
255
extern int print_insn_i386_att		(bfd_vma, disassemble_info *);
256
extern int print_insn_i386_intel	(bfd_vma, disassemble_info *);
257
extern int print_insn_i860		(bfd_vma, disassemble_info *);
258
extern int print_insn_i960		(bfd_vma, disassemble_info *);
259
extern int print_insn_ia64		(bfd_vma, disassemble_info *);
260
extern int print_insn_ip2k		(bfd_vma, disassemble_info *);
261
extern int print_insn_iq2000		(bfd_vma, disassemble_info *);
262
extern int print_insn_little_arm	(bfd_vma, disassemble_info *);
263
extern int print_insn_little_mips	(bfd_vma, disassemble_info *);
264
extern int print_insn_little_nios2	(bfd_vma, disassemble_info *);
265
extern int print_insn_little_powerpc	(bfd_vma, disassemble_info *);
266
extern int print_insn_little_score      (bfd_vma, disassemble_info *);
267
extern int print_insn_lm32		(bfd_vma, disassemble_info *);
268
extern int print_insn_m32c	        (bfd_vma, disassemble_info *);
269
extern int print_insn_m32r		(bfd_vma, disassemble_info *);
270
extern int print_insn_m68hc11		(bfd_vma, disassemble_info *);
271
extern int print_insn_m68hc12		(bfd_vma, disassemble_info *);
272
extern int print_insn_m9s12x		(bfd_vma, disassemble_info *);
273
extern int print_insn_m9s12xg		(bfd_vma, disassemble_info *);
274
extern int print_insn_m68k		(bfd_vma, disassemble_info *);
275
extern int print_insn_m88k		(bfd_vma, disassemble_info *);
276
extern int print_insn_mcore		(bfd_vma, disassemble_info *);
277
extern int print_insn_mep		(bfd_vma, disassemble_info *);
278
extern int print_insn_metag		(bfd_vma, disassemble_info *);
279
extern int print_insn_microblaze	(bfd_vma, disassemble_info *);
280
extern int print_insn_mmix		(bfd_vma, disassemble_info *);
281
extern int print_insn_mn10200		(bfd_vma, disassemble_info *);
282
extern int print_insn_mn10300		(bfd_vma, disassemble_info *);
283
extern int print_insn_moxie		(bfd_vma, disassemble_info *);
284
extern int print_insn_msp430		(bfd_vma, disassemble_info *);
285
extern int print_insn_mt                (bfd_vma, disassemble_info *);
6324 serge 286
extern int print_insn_nds32		(bfd_vma, disassemble_info *);
5191 serge 287
extern int print_insn_ns32k		(bfd_vma, disassemble_info *);
6324 serge 288
extern int print_insn_or1k		(bfd_vma, disassemble_info *);
5191 serge 289
extern int print_insn_pdp11		(bfd_vma, disassemble_info *);
290
extern int print_insn_pj		(bfd_vma, disassemble_info *);
291
extern int print_insn_rs6000		(bfd_vma, disassemble_info *);
292
extern int print_insn_s390		(bfd_vma, disassemble_info *);
293
extern int print_insn_sh		(bfd_vma, disassemble_info *);
294
extern int print_insn_sh64		(bfd_vma, disassemble_info *);
295
extern int print_insn_sh64x_media	(bfd_vma, disassemble_info *);
296
extern int print_insn_sparc		(bfd_vma, disassemble_info *);
297
extern int print_insn_spu		(bfd_vma, disassemble_info *);
298
extern int print_insn_tic30		(bfd_vma, disassemble_info *);
299
extern int print_insn_tic4x		(bfd_vma, disassemble_info *);
300
extern int print_insn_tic54x		(bfd_vma, disassemble_info *);
301
extern int print_insn_tic6x		(bfd_vma, disassemble_info *);
302
extern int print_insn_tic80		(bfd_vma, disassemble_info *);
303
extern int print_insn_tilegx		(bfd_vma, disassemble_info *);
304
extern int print_insn_tilepro		(bfd_vma, disassemble_info *);
305
extern int print_insn_v850		(bfd_vma, disassemble_info *);
306
extern int print_insn_vax		(bfd_vma, disassemble_info *);
6324 serge 307
extern int print_insn_visium		(bfd_vma, disassemble_info *);
5191 serge 308
extern int print_insn_w65		(bfd_vma, disassemble_info *);
309
extern int print_insn_xc16x		(bfd_vma, disassemble_info *);
310
extern int print_insn_xgate             (bfd_vma, disassemble_info *);
311
extern int print_insn_xstormy16		(bfd_vma, disassemble_info *);
312
extern int print_insn_xtensa		(bfd_vma, disassemble_info *);
313
extern int print_insn_z80		(bfd_vma, disassemble_info *);
314
extern int print_insn_z8001		(bfd_vma, disassemble_info *);
315
extern int print_insn_z8002		(bfd_vma, disassemble_info *);
316
extern int print_insn_rx		(bfd_vma, disassemble_info *);
317
extern int print_insn_rl78		(bfd_vma, disassemble_info *);
6324 serge 318
extern int print_insn_rl78_g10		(bfd_vma, disassemble_info *);
319
extern int print_insn_rl78_g13		(bfd_vma, disassemble_info *);
320
extern int print_insn_rl78_g14		(bfd_vma, disassemble_info *);
5191 serge 321
 
6324 serge 322
extern disassembler_ftype arc_get_disassembler (bfd *);
5191 serge 323
extern disassembler_ftype cris_get_disassembler (bfd *);
6324 serge 324
extern disassembler_ftype rl78_get_disassembler (bfd *);
5191 serge 325
 
326
extern void print_aarch64_disassembler_options (FILE *);
327
extern void print_i386_disassembler_options (FILE *);
328
extern void print_mips_disassembler_options (FILE *);
329
extern void print_ppc_disassembler_options (FILE *);
330
extern void print_arm_disassembler_options (FILE *);
331
extern void parse_arm_disassembler_option (char *);
332
extern void print_s390_disassembler_options (FILE *);
333
extern int  get_arm_regname_num_options (void);
334
extern int  set_arm_regname_option (int);
335
extern int  get_arm_regnames (int, const char **, const char **, const char *const **);
336
extern bfd_boolean aarch64_symbol_is_valid (asymbol *, struct disassemble_info *);
337
extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
338
extern void disassemble_init_powerpc (struct disassemble_info *);
339
 
340
/* Fetch the disassembler for a given BFD, if that support is available.  */
341
extern disassembler_ftype disassembler (bfd *);
342
 
343
/* Amend the disassemble_info structure as necessary for the target architecture.
344
   Should only be called after initialising the info->arch field.  */
345
extern void disassemble_init_for_target (struct disassemble_info * dinfo);
346
 
347
/* Document any target specific options available from the disassembler.  */
348
extern void disassembler_usage (FILE *);
349
 
350
 
351
/* This block of definitions is for particular callers who read instructions
352
   into a buffer before calling the instruction decoder.  */
353
 
354
/* Here is a function which callers may wish to use for read_memory_func.
355
   It gets bytes from a buffer.  */
356
extern int buffer_read_memory
357
  (bfd_vma, bfd_byte *, unsigned int, struct disassemble_info *);
358
 
359
/* This function goes with buffer_read_memory.
360
   It prints a message using info->fprintf_func and info->stream.  */
361
extern void perror_memory (int, bfd_vma, struct disassemble_info *);
362
 
363
 
364
/* Just print the address in hex.  This is included for completeness even
365
   though both GDB and objdump provide their own (to print symbolic
366
   addresses).  */
367
extern void generic_print_address
368
  (bfd_vma, struct disassemble_info *);
369
 
370
/* Always true.  */
371
extern int generic_symbol_at_address
372
  (bfd_vma, struct disassemble_info *);
373
 
374
/* Also always true.  */
375
extern bfd_boolean generic_symbol_is_valid
376
  (asymbol *, struct disassemble_info *);
377
 
378
/* Method to initialize a disassemble_info struct.  This should be
379
   called by all applications creating such a struct.  */
380
extern void init_disassemble_info (struct disassemble_info *dinfo, void *stream,
381
				   fprintf_ftype fprintf_func);
382
 
383
/* For compatibility with existing code.  */
384
#define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
385
  init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
386
#define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
387
  init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
388
 
389
 
390
#ifdef __cplusplus
391
}
392
#endif
393
 
394
#endif /* ! defined (DIS_ASM_H) */