Statistics
| Branch: | Revision:

root / dis-asm.h @ 97eb5b14

History | View | Annotate | Download (15.8 kB)

1
/* Interface between the opcode library and its callers.
2
   Written by Cygnus Support, 1993.
3

4
   The opcode library (libopcodes.a) provides instruction decoders for
5
   a large variety of instruction sets, callable with an identical
6
   interface, for making instruction-processing programs more independent
7
   of the instruction set being processed.  */
8

    
9
#ifndef DIS_ASM_H
10
#define DIS_ASM_H
11

    
12
#include <stdio.h>
13
#include <string.h>
14
#include <inttypes.h>
15

    
16
#define PARAMS(x) x
17
typedef void *PTR;
18
typedef uint64_t bfd_vma;
19
typedef uint8_t bfd_byte;
20

    
21
enum bfd_flavour {
22
  bfd_target_unknown_flavour,
23
  bfd_target_aout_flavour,
24
  bfd_target_coff_flavour,
25
  bfd_target_ecoff_flavour,
26
  bfd_target_elf_flavour,
27
  bfd_target_ieee_flavour,
28
  bfd_target_nlm_flavour,
29
  bfd_target_oasys_flavour,
30
  bfd_target_tekhex_flavour,
31
  bfd_target_srec_flavour,
32
  bfd_target_ihex_flavour,
33
  bfd_target_som_flavour,
34
  bfd_target_os9k_flavour,
35
  bfd_target_versados_flavour,
36
  bfd_target_msdos_flavour,
37
  bfd_target_evax_flavour
38
};
39

    
40
enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
41

    
42
enum bfd_architecture 
43
{
44
  bfd_arch_unknown,    /* File arch not known */
45
  bfd_arch_obscure,    /* Arch known, not one of these */
46
  bfd_arch_m68k,       /* Motorola 68xxx */
47
#define bfd_mach_m68000 1
48
#define bfd_mach_m68008 2
49
#define bfd_mach_m68010 3
50
#define bfd_mach_m68020 4
51
#define bfd_mach_m68030 5
52
#define bfd_mach_m68040 6
53
#define bfd_mach_m68060 7
54
  bfd_arch_vax,        /* DEC Vax */   
55
  bfd_arch_i960,       /* Intel 960 */
56
     /* The order of the following is important.
57
       lower number indicates a machine type that 
58
       only accepts a subset of the instructions
59
       available to machines with higher numbers.
60
       The exception is the "ca", which is
61
       incompatible with all other machines except 
62
       "core". */
63

    
64
#define bfd_mach_i960_core      1
65
#define bfd_mach_i960_ka_sa     2
66
#define bfd_mach_i960_kb_sb     3
67
#define bfd_mach_i960_mc        4
68
#define bfd_mach_i960_xa        5
69
#define bfd_mach_i960_ca        6
70
#define bfd_mach_i960_jx        7
71
#define bfd_mach_i960_hx        8
72

    
73
  bfd_arch_a29k,       /* AMD 29000 */
74
  bfd_arch_sparc,      /* SPARC */
75
#define bfd_mach_sparc                 1
76
/* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
77
#define bfd_mach_sparc_sparclet        2
78
#define bfd_mach_sparc_sparclite       3
79
#define bfd_mach_sparc_v8plus          4
80
#define bfd_mach_sparc_v8plusa         5 /* with ultrasparc add'ns.  */
81
#define bfd_mach_sparc_sparclite_le    6
82
#define bfd_mach_sparc_v9              7
83
#define bfd_mach_sparc_v9a             8 /* with ultrasparc add'ns.  */
84
#define bfd_mach_sparc_v8plusb         9 /* with cheetah add'ns.  */
85
#define bfd_mach_sparc_v9b             10 /* with cheetah add'ns.  */
86
/* Nonzero if MACH has the v9 instruction set.  */
87
#define bfd_mach_sparc_v9_p(mach) \
88
  ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
89
   && (mach) != bfd_mach_sparc_sparclite_le)
90
  bfd_arch_mips,       /* MIPS Rxxxx */
91
#define bfd_mach_mips3000              3000
92
#define bfd_mach_mips3900              3900
93
#define bfd_mach_mips4000              4000
94
#define bfd_mach_mips4010              4010
95
#define bfd_mach_mips4100              4100
96
#define bfd_mach_mips4300              4300
97
#define bfd_mach_mips4400              4400
98
#define bfd_mach_mips4600              4600
99
#define bfd_mach_mips4650              4650
100
#define bfd_mach_mips5000              5000
101
#define bfd_mach_mips6000              6000
102
#define bfd_mach_mips8000              8000
103
#define bfd_mach_mips10000             10000
104
#define bfd_mach_mips16                16
105
  bfd_arch_i386,       /* Intel 386 */
106
#define bfd_mach_i386_i386 0
107
#define bfd_mach_i386_i8086 1
108
  bfd_arch_we32k,      /* AT&T WE32xxx */
109
  bfd_arch_tahoe,      /* CCI/Harris Tahoe */
110
  bfd_arch_i860,       /* Intel 860 */
111
  bfd_arch_romp,       /* IBM ROMP PC/RT */
112
  bfd_arch_alliant,    /* Alliant */
113
  bfd_arch_convex,     /* Convex */
114
  bfd_arch_m88k,       /* Motorola 88xxx */
115
  bfd_arch_pyramid,    /* Pyramid Technology */
116
  bfd_arch_h8300,      /* Hitachi H8/300 */
117
#define bfd_mach_h8300   1
118
#define bfd_mach_h8300h  2
119
#define bfd_mach_h8300s  3
120
  bfd_arch_powerpc,    /* PowerPC */
121
  bfd_arch_rs6000,     /* IBM RS/6000 */
122
  bfd_arch_hppa,       /* HP PA RISC */
123
  bfd_arch_d10v,       /* Mitsubishi D10V */
124
  bfd_arch_z8k,        /* Zilog Z8000 */
125
#define bfd_mach_z8001         1
126
#define bfd_mach_z8002         2
127
  bfd_arch_h8500,      /* Hitachi H8/500 */
128
  bfd_arch_sh,         /* Hitachi SH */
129
#define bfd_mach_sh            0
130
#define bfd_mach_sh3        0x30
131
#define bfd_mach_sh3e       0x3e
132
#define bfd_mach_sh4        0x40
133
  bfd_arch_alpha,      /* Dec Alpha */
134
  bfd_arch_arm,        /* Advanced Risc Machines ARM */
135
#define bfd_mach_arm_2         1
136
#define bfd_mach_arm_2a                2
137
#define bfd_mach_arm_3         3
138
#define bfd_mach_arm_3M        4
139
#define bfd_mach_arm_4                 5
140
#define bfd_mach_arm_4T        6
141
  bfd_arch_ns32k,      /* National Semiconductors ns32000 */
142
  bfd_arch_w65,        /* WDC 65816 */
143
  bfd_arch_tic30,      /* Texas Instruments TMS320C30 */
144
  bfd_arch_v850,       /* NEC V850 */
145
#define bfd_mach_v850          0
146
  bfd_arch_arc,        /* Argonaut RISC Core */
147
#define bfd_mach_arc_base 0
148
  bfd_arch_m32r,       /* Mitsubishi M32R/D */
149
#define bfd_mach_m32r          0  /* backwards compatibility */
150
  bfd_arch_mn10200,    /* Matsushita MN10200 */
151
  bfd_arch_mn10300,    /* Matsushita MN10300 */
152
  bfd_arch_last
153
  };
154

    
155
typedef struct symbol_cache_entry
156
{
157
    const char *name;
158
    union
159
    {
160
        PTR p;
161
        bfd_vma i;
162
    } udata;
163
} asymbol;
164

    
165
typedef int (*fprintf_ftype) PARAMS((FILE*, const char*, ...));
166

    
167
enum dis_insn_type {
168
  dis_noninsn,                        /* Not a valid instruction */
169
  dis_nonbranch,                /* Not a branch instruction */
170
  dis_branch,                        /* Unconditional branch */
171
  dis_condbranch,                /* Conditional branch */
172
  dis_jsr,                        /* Jump to subroutine */
173
  dis_condjsr,                        /* Conditional jump to subroutine */
174
  dis_dref,                        /* Data reference instruction */
175
  dis_dref2                        /* Two data references in instruction */
176
};
177

    
178
/* This struct is passed into the instruction decoding routine, 
179
   and is passed back out into each callback.  The various fields are used
180
   for conveying information from your main routine into your callbacks,
181
   for passing information into the instruction decoders (such as the
182
   addresses of the callback functions), or for passing information
183
   back from the instruction decoders to their callers.
184

185
   It must be initialized before it is first passed; this can be done
186
   by hand, or using one of the initialization macros below.  */
187

    
188
typedef struct disassemble_info {
189
  fprintf_ftype fprintf_func;
190
  FILE *stream;
191
  PTR application_data;
192

    
193
  /* Target description.  We could replace this with a pointer to the bfd,
194
     but that would require one.  There currently isn't any such requirement
195
     so to avoid introducing one we record these explicitly.  */
196
  /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
197
  enum bfd_flavour flavour;
198
  /* The bfd_arch value.  */
199
  enum bfd_architecture arch;
200
  /* The bfd_mach value.  */
201
  unsigned long mach;
202
  /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
203
  enum bfd_endian endian;
204

    
205
  /* An array of pointers to symbols either at the location being disassembled
206
     or at the start of the function being disassembled.  The array is sorted
207
     so that the first symbol is intended to be the one used.  The others are
208
     present for any misc. purposes.  This is not set reliably, but if it is
209
     not NULL, it is correct.  */
210
  asymbol **symbols;
211
  /* Number of symbols in array.  */
212
  int num_symbols;
213

    
214
  /* For use by the disassembler.
215
     The top 16 bits are reserved for public use (and are documented here).
216
     The bottom 16 bits are for the internal use of the disassembler.  */
217
  unsigned long flags;
218
#define INSN_HAS_RELOC        0x80000000
219
  PTR private_data;
220

    
221
  /* Function used to get bytes to disassemble.  MEMADDR is the
222
     address of the stuff to be disassembled, MYADDR is the address to
223
     put the bytes in, and LENGTH is the number of bytes to read.
224
     INFO is a pointer to this struct.
225
     Returns an errno value or 0 for success.  */
226
  int (*read_memory_func)
227
    PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, int length,
228
             struct disassemble_info *info));
229

    
230
  /* Function which should be called if we get an error that we can't
231
     recover from.  STATUS is the errno value from read_memory_func and
232
     MEMADDR is the address that we were trying to read.  INFO is a
233
     pointer to this struct.  */
234
  void (*memory_error_func)
235
    PARAMS ((int status, bfd_vma memaddr, struct disassemble_info *info));
236

    
237
  /* Function called to print ADDR.  */
238
  void (*print_address_func)
239
    PARAMS ((bfd_vma addr, struct disassemble_info *info));
240

    
241
  /* Function called to determine if there is a symbol at the given ADDR.
242
     If there is, the function returns 1, otherwise it returns 0.
243
     This is used by ports which support an overlay manager where
244
     the overlay number is held in the top part of an address.  In
245
     some circumstances we want to include the overlay number in the
246
     address, (normally because there is a symbol associated with
247
     that address), but sometimes we want to mask out the overlay bits.  */
248
  int (* symbol_at_address_func)
249
    PARAMS ((bfd_vma addr, struct disassemble_info * info));
250

    
251
  /* These are for buffer_read_memory.  */
252
  bfd_byte *buffer;
253
  bfd_vma buffer_vma;
254
  int buffer_length;
255

    
256
  /* This variable may be set by the instruction decoder.  It suggests
257
      the number of bytes objdump should display on a single line.  If
258
      the instruction decoder sets this, it should always set it to
259
      the same value in order to get reasonable looking output.  */
260
  int bytes_per_line;
261

    
262
  /* the next two variables control the way objdump displays the raw data */
263
  /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
264
  /* output will look like this:
265
     00:   00000000 00000000
266
     with the chunks displayed according to "display_endian". */
267
  int bytes_per_chunk;
268
  enum bfd_endian display_endian;
269

    
270
  /* Results from instruction decoders.  Not all decoders yet support
271
     this information.  This info is set each time an instruction is
272
     decoded, and is only valid for the last such instruction.
273

274
     To determine whether this decoder supports this information, set
275
     insn_info_valid to 0, decode an instruction, then check it.  */
276

    
277
  char insn_info_valid;                /* Branch info has been set. */
278
  char branch_delay_insns;        /* How many sequential insn's will run before
279
                                   a branch takes effect.  (0 = normal) */
280
  char data_size;                /* Size of data reference in insn, in bytes */
281
  enum dis_insn_type insn_type;        /* Type of instruction */
282
  bfd_vma target;                /* Target address of branch or dref, if known;
283
                                   zero if unknown.  */
284
  bfd_vma target2;                /* Second target address for dref2 */
285

    
286
  /* Command line options specific to the target disassembler.  */
287
  char * disassembler_options;
288

    
289
} disassemble_info;
290

    
291
 
292
/* Standard disassemblers.  Disassemble one instruction at the given
293
   target address.  Return number of bytes processed.  */
294
typedef int (*disassembler_ftype)
295
     PARAMS((bfd_vma, disassemble_info *));
296

    
297
extern int print_insn_big_mips                PARAMS ((bfd_vma, disassemble_info*));
298
extern int print_insn_little_mips        PARAMS ((bfd_vma, disassemble_info*));
299
extern int print_insn_i386                PARAMS ((bfd_vma, disassemble_info*));
300
extern int print_insn_m68k                PARAMS ((bfd_vma, disassemble_info*));
301
extern int print_insn_z8001                PARAMS ((bfd_vma, disassemble_info*));
302
extern int print_insn_z8002                PARAMS ((bfd_vma, disassemble_info*));
303
extern int print_insn_h8300                PARAMS ((bfd_vma, disassemble_info*));
304
extern int print_insn_h8300h                PARAMS ((bfd_vma, disassemble_info*));
305
extern int print_insn_h8300s                PARAMS ((bfd_vma, disassemble_info*));
306
extern int print_insn_h8500                PARAMS ((bfd_vma, disassemble_info*));
307
extern int print_insn_alpha                PARAMS ((bfd_vma, disassemble_info*));
308
extern disassembler_ftype arc_get_disassembler PARAMS ((int, int));
309
extern int print_insn_arm                PARAMS ((bfd_vma, disassemble_info*));
310
extern int print_insn_sparc                PARAMS ((bfd_vma, disassemble_info*));
311
extern int print_insn_big_a29k                PARAMS ((bfd_vma, disassemble_info*));
312
extern int print_insn_little_a29k        PARAMS ((bfd_vma, disassemble_info*));
313
extern int print_insn_i960                PARAMS ((bfd_vma, disassemble_info*));
314
extern int print_insn_sh                PARAMS ((bfd_vma, disassemble_info*));
315
extern int print_insn_shl                PARAMS ((bfd_vma, disassemble_info*));
316
extern int print_insn_hppa                PARAMS ((bfd_vma, disassemble_info*));
317
extern int print_insn_m32r                PARAMS ((bfd_vma, disassemble_info*));
318
extern int print_insn_m88k                PARAMS ((bfd_vma, disassemble_info*));
319
extern int print_insn_mn10200                PARAMS ((bfd_vma, disassemble_info*));
320
extern int print_insn_mn10300                PARAMS ((bfd_vma, disassemble_info*));
321
extern int print_insn_ns32k                PARAMS ((bfd_vma, disassemble_info*));
322
extern int print_insn_big_powerpc        PARAMS ((bfd_vma, disassemble_info*));
323
extern int print_insn_little_powerpc        PARAMS ((bfd_vma, disassemble_info*));
324
extern int print_insn_rs6000                PARAMS ((bfd_vma, disassemble_info*));
325
extern int print_insn_w65                PARAMS ((bfd_vma, disassemble_info*));
326
extern int print_insn_d10v                PARAMS ((bfd_vma, disassemble_info*));
327
extern int print_insn_v850                PARAMS ((bfd_vma, disassemble_info*));
328
extern int print_insn_tic30                PARAMS ((bfd_vma, disassemble_info*));
329
extern int print_insn_ppc                PARAMS ((bfd_vma, disassemble_info*));
330

    
331
#if 0
332
/* Fetch the disassembler for a given BFD, if that support is available.  */
333
extern disassembler_ftype disassembler        PARAMS ((bfd *));
334
#endif
335

    
336
 
337
/* This block of definitions is for particular callers who read instructions
338
   into a buffer before calling the instruction decoder.  */
339

    
340
/* Here is a function which callers may wish to use for read_memory_func.
341
   It gets bytes from a buffer.  */
342
extern int buffer_read_memory
343
  PARAMS ((bfd_vma, bfd_byte *, int, struct disassemble_info *));
344

    
345
/* This function goes with buffer_read_memory.
346
   It prints a message using info->fprintf_func and info->stream.  */
347
extern void perror_memory PARAMS ((int, bfd_vma, struct disassemble_info *));
348

    
349

    
350
/* Just print the address in hex.  This is included for completeness even
351
   though both GDB and objdump provide their own (to print symbolic
352
   addresses).  */
353
extern void generic_print_address
354
  PARAMS ((bfd_vma, struct disassemble_info *));
355

    
356
/* Always true.  */
357
extern int generic_symbol_at_address
358
  PARAMS ((bfd_vma, struct disassemble_info *));
359

    
360
/* Macro to initialize a disassemble_info struct.  This should be called
361
   by all applications creating such a struct.  */
362
#define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
363
  (INFO).flavour = bfd_target_unknown_flavour, \
364
  (INFO).arch = bfd_arch_unknown, \
365
  (INFO).mach = 0, \
366
  (INFO).endian = BFD_ENDIAN_UNKNOWN, \
367
  INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
368

    
369
/* Call this macro to initialize only the internal variables for the
370
   disassembler.  Architecture dependent things such as byte order, or machine
371
   variant are not touched by this macro.  This makes things much easier for
372
   GDB which must initialize these things seperatly.  */
373

    
374
#define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
375
  (INFO).fprintf_func = (FPRINTF_FUNC), \
376
  (INFO).stream = (STREAM), \
377
  (INFO).symbols = NULL, \
378
  (INFO).num_symbols = 0, \
379
  (INFO).buffer = NULL, \
380
  (INFO).buffer_vma = 0, \
381
  (INFO).buffer_length = 0, \
382
  (INFO).read_memory_func = buffer_read_memory, \
383
  (INFO).memory_error_func = perror_memory, \
384
  (INFO).print_address_func = generic_print_address, \
385
  (INFO).symbol_at_address_func = generic_symbol_at_address, \
386
  (INFO).flags = 0, \
387
  (INFO).bytes_per_line = 0, \
388
  (INFO).bytes_per_chunk = 0, \
389
  (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
390
  (INFO).disassembler_options = NULL, \
391
  (INFO).insn_info_valid = 0
392

    
393
#define _(x) x
394

    
395
/* from libbfd */
396

    
397
bfd_vma bfd_getl32 (const bfd_byte *addr);
398
bfd_vma bfd_getb32 (const bfd_byte *addr);
399
typedef enum bfd_boolean {false, true} boolean;
400

    
401
#endif /* ! defined (DIS_ASM_H) */