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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 <stdlib.h>
13 #include <stdio.h>
14 #include <string.h>
15 #include <inttypes.h>
16 
17 #define PARAMS(x) x
18 typedef void *PTR;
19 typedef uint64_t bfd_vma;
20 typedef int64_t bfd_signed_vma;
21 typedef uint8_t bfd_byte;
22 #define sprintf_vma(s,x) sprintf (s, "%0" PRIx64, x)
23 #define snprintf_vma(s,ss,x) snprintf (s, ss, "%0" PRIx64, x)
24 
25 #define BFD64
26 
27 enum bfd_flavour {
28   bfd_target_unknown_flavour,
29   bfd_target_aout_flavour,
30   bfd_target_coff_flavour,
31   bfd_target_ecoff_flavour,
32   bfd_target_elf_flavour,
33   bfd_target_ieee_flavour,
34   bfd_target_nlm_flavour,
35   bfd_target_oasys_flavour,
36   bfd_target_tekhex_flavour,
37   bfd_target_srec_flavour,
38   bfd_target_ihex_flavour,
39   bfd_target_som_flavour,
40   bfd_target_os9k_flavour,
41   bfd_target_versados_flavour,
42   bfd_target_msdos_flavour,
43   bfd_target_evax_flavour
44 };
45 
46 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
47 
48 enum bfd_architecture
49 {
50   bfd_arch_unknown,    /* File arch not known */
51   bfd_arch_obscure,    /* Arch known, not one of these */
52   bfd_arch_m68k,       /* Motorola 68xxx */
53 #define bfd_mach_m68000 1
54 #define bfd_mach_m68008 2
55 #define bfd_mach_m68010 3
56 #define bfd_mach_m68020 4
57 #define bfd_mach_m68030 5
58 #define bfd_mach_m68040 6
59 #define bfd_mach_m68060 7
60 #define bfd_mach_cpu32  8
61 #define bfd_mach_mcf5200  9
62 #define bfd_mach_mcf5206e 10
63 #define bfd_mach_mcf5307  11
64 #define bfd_mach_mcf5407  12
65 #define bfd_mach_mcf528x  13
66 #define bfd_mach_mcfv4e   14
67 #define bfd_mach_mcf521x   15
68 #define bfd_mach_mcf5249   16
69 #define bfd_mach_mcf547x   17
70 #define bfd_mach_mcf548x   18
71   bfd_arch_vax,        /* DEC Vax */
72   bfd_arch_i960,       /* Intel 960 */
73      /* The order of the following is important.
74        lower number indicates a machine type that
75        only accepts a subset of the instructions
76        available to machines with higher numbers.
77        The exception is the "ca", which is
78        incompatible with all other machines except
79        "core". */
80 
81 #define bfd_mach_i960_core      1
82 #define bfd_mach_i960_ka_sa     2
83 #define bfd_mach_i960_kb_sb     3
84 #define bfd_mach_i960_mc        4
85 #define bfd_mach_i960_xa        5
86 #define bfd_mach_i960_ca        6
87 #define bfd_mach_i960_jx        7
88 #define bfd_mach_i960_hx        8
89 
90   bfd_arch_a29k,       /* AMD 29000 */
91   bfd_arch_sparc,      /* SPARC */
92 #define bfd_mach_sparc                 1
93 /* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
94 #define bfd_mach_sparc_sparclet        2
95 #define bfd_mach_sparc_sparclite       3
96 #define bfd_mach_sparc_v8plus          4
97 #define bfd_mach_sparc_v8plusa         5 /* with ultrasparc add'ns.  */
98 #define bfd_mach_sparc_sparclite_le    6
99 #define bfd_mach_sparc_v9              7
100 #define bfd_mach_sparc_v9a             8 /* with ultrasparc add'ns.  */
101 #define bfd_mach_sparc_v8plusb         9 /* with cheetah add'ns.  */
102 #define bfd_mach_sparc_v9b             10 /* with cheetah add'ns.  */
103 /* Nonzero if MACH has the v9 instruction set.  */
104 #define bfd_mach_sparc_v9_p(mach) \
105   ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
106    && (mach) != bfd_mach_sparc_sparclite_le)
107   bfd_arch_mips,       /* MIPS Rxxxx */
108 #define bfd_mach_mips3000              3000
109 #define bfd_mach_mips3900              3900
110 #define bfd_mach_mips4000              4000
111 #define bfd_mach_mips4010              4010
112 #define bfd_mach_mips4100              4100
113 #define bfd_mach_mips4300              4300
114 #define bfd_mach_mips4400              4400
115 #define bfd_mach_mips4600              4600
116 #define bfd_mach_mips4650              4650
117 #define bfd_mach_mips5000              5000
118 #define bfd_mach_mips6000              6000
119 #define bfd_mach_mips8000              8000
120 #define bfd_mach_mips10000             10000
121 #define bfd_mach_mips16                16
122   bfd_arch_i386,       /* Intel 386 */
123 #define bfd_mach_i386_i386 0
124 #define bfd_mach_i386_i8086 1
125 #define bfd_mach_i386_i386_intel_syntax 2
126 #define bfd_mach_x86_64 3
127 #define bfd_mach_x86_64_intel_syntax 4
128   bfd_arch_we32k,      /* AT&T WE32xxx */
129   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
130   bfd_arch_i860,       /* Intel 860 */
131   bfd_arch_romp,       /* IBM ROMP PC/RT */
132   bfd_arch_alliant,    /* Alliant */
133   bfd_arch_convex,     /* Convex */
134   bfd_arch_m88k,       /* Motorola 88xxx */
135   bfd_arch_pyramid,    /* Pyramid Technology */
136   bfd_arch_h8300,      /* Hitachi H8/300 */
137 #define bfd_mach_h8300   1
138 #define bfd_mach_h8300h  2
139 #define bfd_mach_h8300s  3
140   bfd_arch_powerpc,    /* PowerPC */
141 #define bfd_mach_ppc           0
142 #define bfd_mach_ppc64         1
143 #define bfd_mach_ppc_403       403
144 #define bfd_mach_ppc_403gc     4030
145 #define bfd_mach_ppc_505       505
146 #define bfd_mach_ppc_601       601
147 #define bfd_mach_ppc_602       602
148 #define bfd_mach_ppc_603       603
149 #define bfd_mach_ppc_ec603e    6031
150 #define bfd_mach_ppc_604       604
151 #define bfd_mach_ppc_620       620
152 #define bfd_mach_ppc_630       630
153 #define bfd_mach_ppc_750       750
154 #define bfd_mach_ppc_860       860
155 #define bfd_mach_ppc_a35       35
156 #define bfd_mach_ppc_rs64ii    642
157 #define bfd_mach_ppc_rs64iii   643
158 #define bfd_mach_ppc_7400      7400
159   bfd_arch_rs6000,     /* IBM RS/6000 */
160   bfd_arch_hppa,       /* HP PA RISC */
161 #define bfd_mach_hppa10        10
162 #define bfd_mach_hppa11        11
163 #define bfd_mach_hppa20        20
164 #define bfd_mach_hppa20w       25
165   bfd_arch_d10v,       /* Mitsubishi D10V */
166   bfd_arch_z8k,        /* Zilog Z8000 */
167 #define bfd_mach_z8001         1
168 #define bfd_mach_z8002         2
169   bfd_arch_h8500,      /* Hitachi H8/500 */
170   bfd_arch_sh,         /* Hitachi SH */
171 #define bfd_mach_sh            1
172 #define bfd_mach_sh2        0x20
173 #define bfd_mach_sh_dsp     0x2d
174 #define bfd_mach_sh2a       0x2a
175 #define bfd_mach_sh2a_nofpu 0x2b
176 #define bfd_mach_sh2e       0x2e
177 #define bfd_mach_sh3        0x30
178 #define bfd_mach_sh3_nommu  0x31
179 #define bfd_mach_sh3_dsp    0x3d
180 #define bfd_mach_sh3e       0x3e
181 #define bfd_mach_sh4        0x40
182 #define bfd_mach_sh4_nofpu  0x41
183 #define bfd_mach_sh4_nommu_nofpu  0x42
184 #define bfd_mach_sh4a       0x4a
185 #define bfd_mach_sh4a_nofpu 0x4b
186 #define bfd_mach_sh4al_dsp  0x4d
187 #define bfd_mach_sh5        0x50
188   bfd_arch_alpha,      /* Dec Alpha */
189 #define bfd_mach_alpha 1
190   bfd_arch_arm,        /* Advanced Risc Machines ARM */
191 #define bfd_mach_arm_unknown	0
192 #define bfd_mach_arm_2		1
193 #define bfd_mach_arm_2a		2
194 #define bfd_mach_arm_3		3
195 #define bfd_mach_arm_3M 	4
196 #define bfd_mach_arm_4 		5
197 #define bfd_mach_arm_4T 	6
198 #define bfd_mach_arm_5 		7
199 #define bfd_mach_arm_5T		8
200 #define bfd_mach_arm_5TE	9
201 #define bfd_mach_arm_XScale	10
202 #define bfd_mach_arm_ep9312	11
203 #define bfd_mach_arm_iWMMXt	12
204 #define bfd_mach_arm_iWMMXt2	13
205   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
206   bfd_arch_w65,        /* WDC 65816 */
207   bfd_arch_tic30,      /* Texas Instruments TMS320C30 */
208   bfd_arch_v850,       /* NEC V850 */
209 #define bfd_mach_v850          0
210   bfd_arch_arc,        /* Argonaut RISC Core */
211 #define bfd_mach_arc_base 0
212   bfd_arch_m32r,       /* Mitsubishi M32R/D */
213 #define bfd_mach_m32r          0  /* backwards compatibility */
214   bfd_arch_mn10200,    /* Matsushita MN10200 */
215   bfd_arch_mn10300,    /* Matsushita MN10300 */
216   bfd_arch_cris,       /* Axis CRIS */
217 #define bfd_mach_cris_v0_v10   255
218 #define bfd_mach_cris_v32      32
219 #define bfd_mach_cris_v10_v32  1032
220   bfd_arch_last
221   };
222 #define bfd_mach_s390_31 31
223 #define bfd_mach_s390_64 64
224 
225 typedef struct symbol_cache_entry
226 {
227     const char *name;
228     union
229     {
230         PTR p;
231         bfd_vma i;
232     } udata;
233 } asymbol;
234 
235 typedef int (*fprintf_ftype) PARAMS((FILE*, const char*, ...));
236 
237 enum dis_insn_type {
238   dis_noninsn,			/* Not a valid instruction */
239   dis_nonbranch,		/* Not a branch instruction */
240   dis_branch,			/* Unconditional branch */
241   dis_condbranch,		/* Conditional branch */
242   dis_jsr,			/* Jump to subroutine */
243   dis_condjsr,			/* Conditional jump to subroutine */
244   dis_dref,			/* Data reference instruction */
245   dis_dref2			/* Two data references in instruction */
246 };
247 
248 /* This struct is passed into the instruction decoding routine,
249    and is passed back out into each callback.  The various fields are used
250    for conveying information from your main routine into your callbacks,
251    for passing information into the instruction decoders (such as the
252    addresses of the callback functions), or for passing information
253    back from the instruction decoders to their callers.
254 
255    It must be initialized before it is first passed; this can be done
256    by hand, or using one of the initialization macros below.  */
257 
258 typedef struct disassemble_info {
259   fprintf_ftype fprintf_func;
260   FILE *stream;
261   PTR application_data;
262 
263   /* Target description.  We could replace this with a pointer to the bfd,
264      but that would require one.  There currently isn't any such requirement
265      so to avoid introducing one we record these explicitly.  */
266   /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
267   enum bfd_flavour flavour;
268   /* The bfd_arch value.  */
269   enum bfd_architecture arch;
270   /* The bfd_mach value.  */
271   unsigned long mach;
272   /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
273   enum bfd_endian endian;
274 
275   /* An array of pointers to symbols either at the location being disassembled
276      or at the start of the function being disassembled.  The array is sorted
277      so that the first symbol is intended to be the one used.  The others are
278      present for any misc. purposes.  This is not set reliably, but if it is
279      not NULL, it is correct.  */
280   asymbol **symbols;
281   /* Number of symbols in array.  */
282   int num_symbols;
283 
284   /* For use by the disassembler.
285      The top 16 bits are reserved for public use (and are documented here).
286      The bottom 16 bits are for the internal use of the disassembler.  */
287   unsigned long flags;
288 #define INSN_HAS_RELOC	0x80000000
289   PTR private_data;
290 
291   /* Function used to get bytes to disassemble.  MEMADDR is the
292      address of the stuff to be disassembled, MYADDR is the address to
293      put the bytes in, and LENGTH is the number of bytes to read.
294      INFO is a pointer to this struct.
295      Returns an errno value or 0 for success.  */
296   int (*read_memory_func)
297     PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, int length,
298 	     struct disassemble_info *info));
299 
300   /* Function which should be called if we get an error that we can't
301      recover from.  STATUS is the errno value from read_memory_func and
302      MEMADDR is the address that we were trying to read.  INFO is a
303      pointer to this struct.  */
304   void (*memory_error_func)
305     PARAMS ((int status, bfd_vma memaddr, struct disassemble_info *info));
306 
307   /* Function called to print ADDR.  */
308   void (*print_address_func)
309     PARAMS ((bfd_vma addr, struct disassemble_info *info));
310 
311   /* Function called to determine if there is a symbol at the given ADDR.
312      If there is, the function returns 1, otherwise it returns 0.
313      This is used by ports which support an overlay manager where
314      the overlay number is held in the top part of an address.  In
315      some circumstances we want to include the overlay number in the
316      address, (normally because there is a symbol associated with
317      that address), but sometimes we want to mask out the overlay bits.  */
318   int (* symbol_at_address_func)
319     PARAMS ((bfd_vma addr, struct disassemble_info * info));
320 
321   /* These are for buffer_read_memory.  */
322   bfd_byte *buffer;
323   bfd_vma buffer_vma;
324   int buffer_length;
325 
326   /* This variable may be set by the instruction decoder.  It suggests
327       the number of bytes objdump should display on a single line.  If
328       the instruction decoder sets this, it should always set it to
329       the same value in order to get reasonable looking output.  */
330   int bytes_per_line;
331 
332   /* the next two variables control the way objdump displays the raw data */
333   /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
334   /* output will look like this:
335      00:   00000000 00000000
336      with the chunks displayed according to "display_endian". */
337   int bytes_per_chunk;
338   enum bfd_endian display_endian;
339 
340   /* Results from instruction decoders.  Not all decoders yet support
341      this information.  This info is set each time an instruction is
342      decoded, and is only valid for the last such instruction.
343 
344      To determine whether this decoder supports this information, set
345      insn_info_valid to 0, decode an instruction, then check it.  */
346 
347   char insn_info_valid;		/* Branch info has been set. */
348   char branch_delay_insns;	/* How many sequential insn's will run before
349 				   a branch takes effect.  (0 = normal) */
350   char data_size;		/* Size of data reference in insn, in bytes */
351   enum dis_insn_type insn_type;	/* Type of instruction */
352   bfd_vma target;		/* Target address of branch or dref, if known;
353 				   zero if unknown.  */
354   bfd_vma target2;		/* Second target address for dref2 */
355 
356   /* Command line options specific to the target disassembler.  */
357   char * disassembler_options;
358 
359 } disassemble_info;
360 
361 
362 /* Standard disassemblers.  Disassemble one instruction at the given
363    target address.  Return number of bytes processed.  */
364 typedef int (*disassembler_ftype)
365      PARAMS((bfd_vma, disassemble_info *));
366 
367 extern int print_insn_big_mips		PARAMS ((bfd_vma, disassemble_info*));
368 extern int print_insn_little_mips	PARAMS ((bfd_vma, disassemble_info*));
369 extern int print_insn_i386		PARAMS ((bfd_vma, disassemble_info*));
370 extern int print_insn_m68k		PARAMS ((bfd_vma, disassemble_info*));
371 extern int print_insn_z8001		PARAMS ((bfd_vma, disassemble_info*));
372 extern int print_insn_z8002		PARAMS ((bfd_vma, disassemble_info*));
373 extern int print_insn_h8300		PARAMS ((bfd_vma, disassemble_info*));
374 extern int print_insn_h8300h		PARAMS ((bfd_vma, disassemble_info*));
375 extern int print_insn_h8300s		PARAMS ((bfd_vma, disassemble_info*));
376 extern int print_insn_h8500		PARAMS ((bfd_vma, disassemble_info*));
377 extern int print_insn_alpha		PARAMS ((bfd_vma, disassemble_info*));
378 extern disassembler_ftype arc_get_disassembler PARAMS ((int, int));
379 extern int print_insn_arm		PARAMS ((bfd_vma, disassemble_info*));
380 extern int print_insn_sparc		PARAMS ((bfd_vma, disassemble_info*));
381 extern int print_insn_big_a29k		PARAMS ((bfd_vma, disassemble_info*));
382 extern int print_insn_little_a29k	PARAMS ((bfd_vma, disassemble_info*));
383 extern int print_insn_i960		PARAMS ((bfd_vma, disassemble_info*));
384 extern int print_insn_sh		PARAMS ((bfd_vma, disassemble_info*));
385 extern int print_insn_shl		PARAMS ((bfd_vma, disassemble_info*));
386 extern int print_insn_hppa		PARAMS ((bfd_vma, disassemble_info*));
387 extern int print_insn_m32r		PARAMS ((bfd_vma, disassemble_info*));
388 extern int print_insn_m88k		PARAMS ((bfd_vma, disassemble_info*));
389 extern int print_insn_mn10200		PARAMS ((bfd_vma, disassemble_info*));
390 extern int print_insn_mn10300		PARAMS ((bfd_vma, disassemble_info*));
391 extern int print_insn_ns32k		PARAMS ((bfd_vma, disassemble_info*));
392 extern int print_insn_big_powerpc	PARAMS ((bfd_vma, disassemble_info*));
393 extern int print_insn_little_powerpc	PARAMS ((bfd_vma, disassemble_info*));
394 extern int print_insn_rs6000		PARAMS ((bfd_vma, disassemble_info*));
395 extern int print_insn_w65		PARAMS ((bfd_vma, disassemble_info*));
396 extern int print_insn_d10v		PARAMS ((bfd_vma, disassemble_info*));
397 extern int print_insn_v850		PARAMS ((bfd_vma, disassemble_info*));
398 extern int print_insn_tic30		PARAMS ((bfd_vma, disassemble_info*));
399 extern int print_insn_ppc		PARAMS ((bfd_vma, disassemble_info*));
400 extern int print_insn_s390		PARAMS ((bfd_vma, disassemble_info*));
401 extern int print_insn_crisv32           PARAMS ((bfd_vma, disassemble_info*));
402 
403 #if 0
404 /* Fetch the disassembler for a given BFD, if that support is available.  */
405 extern disassembler_ftype disassembler	PARAMS ((bfd *));
406 #endif
407 
408 
409 /* This block of definitions is for particular callers who read instructions
410    into a buffer before calling the instruction decoder.  */
411 
412 /* Here is a function which callers may wish to use for read_memory_func.
413    It gets bytes from a buffer.  */
414 extern int buffer_read_memory
415   PARAMS ((bfd_vma, bfd_byte *, int, struct disassemble_info *));
416 
417 /* This function goes with buffer_read_memory.
418    It prints a message using info->fprintf_func and info->stream.  */
419 extern void perror_memory PARAMS ((int, bfd_vma, struct disassemble_info *));
420 
421 
422 /* Just print the address in hex.  This is included for completeness even
423    though both GDB and objdump provide their own (to print symbolic
424    addresses).  */
425 extern void generic_print_address
426   PARAMS ((bfd_vma, struct disassemble_info *));
427 
428 /* Always true.  */
429 extern int generic_symbol_at_address
430   PARAMS ((bfd_vma, struct disassemble_info *));
431 
432 /* Macro to initialize a disassemble_info struct.  This should be called
433    by all applications creating such a struct.  */
434 #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
435   (INFO).flavour = bfd_target_unknown_flavour, \
436   (INFO).arch = bfd_arch_unknown, \
437   (INFO).mach = 0, \
438   (INFO).endian = BFD_ENDIAN_UNKNOWN, \
439   INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
440 
441 /* Call this macro to initialize only the internal variables for the
442    disassembler.  Architecture dependent things such as byte order, or machine
443    variant are not touched by this macro.  This makes things much easier for
444    GDB which must initialize these things separately.  */
445 
446 #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
447   (INFO).fprintf_func = (FPRINTF_FUNC), \
448   (INFO).stream = (STREAM), \
449   (INFO).symbols = NULL, \
450   (INFO).num_symbols = 0, \
451   (INFO).private_data = NULL, \
452   (INFO).buffer = NULL, \
453   (INFO).buffer_vma = 0, \
454   (INFO).buffer_length = 0, \
455   (INFO).read_memory_func = buffer_read_memory, \
456   (INFO).memory_error_func = perror_memory, \
457   (INFO).print_address_func = generic_print_address, \
458   (INFO).symbol_at_address_func = generic_symbol_at_address, \
459   (INFO).flags = 0, \
460   (INFO).bytes_per_line = 0, \
461   (INFO).bytes_per_chunk = 0, \
462   (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
463   (INFO).disassembler_options = NULL, \
464   (INFO).insn_info_valid = 0
465 
466 #define _(x) x
467 #define ATTRIBUTE_UNUSED __attribute__((unused))
468 
469 /* from libbfd */
470 
471 bfd_vma bfd_getl32 (const bfd_byte *addr);
472 bfd_vma bfd_getb32 (const bfd_byte *addr);
473 bfd_vma bfd_getl16 (const bfd_byte *addr);
474 bfd_vma bfd_getb16 (const bfd_byte *addr);
475 typedef enum bfd_boolean {false, true} boolean;
476 typedef boolean bfd_boolean;
477 
478 #endif /* ! defined (DIS_ASM_H) */
479