dis-asm.h

   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 "qemu-common.h"
  13
  14 typedef void *PTR;
  15 typedef uint64_t bfd_vma;
  16 typedef int64_t bfd_signed_vma;
  17 typedef uint8_t bfd_byte;
  18 #define sprintf_vma(s,x) sprintf (s, "%0" PRIx64, x)
  19 #define snprintf_vma(s,ss,x) snprintf (s, ss, "%0" PRIx64, x)
  20
  21 #define BFD64
  22
  23 enum bfd_flavour {
  24   bfd_target_unknown_flavour,
  25   bfd_target_aout_flavour,
  26   bfd_target_coff_flavour,
  27   bfd_target_ecoff_flavour,
  28   bfd_target_elf_flavour,
  29   bfd_target_ieee_flavour,
  30   bfd_target_nlm_flavour,
  31   bfd_target_oasys_flavour,
  32   bfd_target_tekhex_flavour,
  33   bfd_target_srec_flavour,
  34   bfd_target_ihex_flavour,
  35   bfd_target_som_flavour,
  36   bfd_target_os9k_flavour,
  37   bfd_target_versados_flavour,
  38   bfd_target_msdos_flavour,
  39   bfd_target_evax_flavour
  40 };
  41
  42 enum bfd_endian { BFD_ENDIAN_BIG, BFD_ENDIAN_LITTLE, BFD_ENDIAN_UNKNOWN };
  43
  44 enum bfd_architecture
  45 {
  46   bfd_arch_unknown,    /* File arch not known */
  47   bfd_arch_obscure,    /* Arch known, not one of these */
  48   bfd_arch_m68k,       /* Motorola 68xxx */
  49 #define bfd_mach_m68000 1
  50 #define bfd_mach_m68008 2
  51 #define bfd_mach_m68010 3
  52 #define bfd_mach_m68020 4
  53 #define bfd_mach_m68030 5
  54 #define bfd_mach_m68040 6
  55 #define bfd_mach_m68060 7
  56 #define bfd_mach_cpu32  8
  57 #define bfd_mach_mcf5200  9
  58 #define bfd_mach_mcf5206e 10
  59 #define bfd_mach_mcf5307  11
  60 #define bfd_mach_mcf5407  12
  61 #define bfd_mach_mcf528x  13
  62 #define bfd_mach_mcfv4e   14
  63 #define bfd_mach_mcf521x   15
  64 #define bfd_mach_mcf5249   16
  65 #define bfd_mach_mcf547x   17
  66 #define bfd_mach_mcf548x   18
  67   bfd_arch_vax,        /* DEC Vax */
  68   bfd_arch_i960,       /* Intel 960 */
  69      /* The order of the following is important.
  70        lower number indicates a machine type that
  71        only accepts a subset of the instructions
  72        available to machines with higher numbers.
  73        The exception is the "ca", which is
  74        incompatible with all other machines except
  75        "core". */
  76
  77 #define bfd_mach_i960_core      1
  78 #define bfd_mach_i960_ka_sa     2
  79 #define bfd_mach_i960_kb_sb     3
  80 #define bfd_mach_i960_mc        4
  81 #define bfd_mach_i960_xa        5
  82 #define bfd_mach_i960_ca        6
  83 #define bfd_mach_i960_jx        7
  84 #define bfd_mach_i960_hx        8
  85
  86   bfd_arch_a29k,       /* AMD 29000 */
  87   bfd_arch_sparc,      /* SPARC */
  88 #define bfd_mach_sparc                 1
  89 /* The difference between v8plus and v9 is that v9 is a true 64 bit env.  */
  90 #define bfd_mach_sparc_sparclet        2
  91 #define bfd_mach_sparc_sparclite       3
  92 #define bfd_mach_sparc_v8plus          4
  93 #define bfd_mach_sparc_v8plusa         5 /* with ultrasparc add'ns.  */
  94 #define bfd_mach_sparc_sparclite_le    6
  95 #define bfd_mach_sparc_v9              7
  96 #define bfd_mach_sparc_v9a             8 /* with ultrasparc add'ns.  */
  97 #define bfd_mach_sparc_v8plusb         9 /* with cheetah add'ns.  */
  98 #define bfd_mach_sparc_v9b             10 /* with cheetah add'ns.  */
  99 /* Nonzero if MACH has the v9 instruction set.  */
 100 #define bfd_mach_sparc_v9_p(mach) \
 101   ((mach) >= bfd_mach_sparc_v8plus && (mach) <= bfd_mach_sparc_v9b \
 102    && (mach) != bfd_mach_sparc_sparclite_le)
 103   bfd_arch_mips,       /* MIPS Rxxxx */
 104 #define bfd_mach_mips3000              3000
 105 #define bfd_mach_mips3900              3900
 106 #define bfd_mach_mips4000              4000
 107 #define bfd_mach_mips4010              4010
 108 #define bfd_mach_mips4100              4100
 109 #define bfd_mach_mips4300              4300
 110 #define bfd_mach_mips4400              4400
 111 #define bfd_mach_mips4600              4600
 112 #define bfd_mach_mips4650              4650
 113 #define bfd_mach_mips5000              5000
 114 #define bfd_mach_mips6000              6000
 115 #define bfd_mach_mips8000              8000
 116 #define bfd_mach_mips10000             10000
 117 #define bfd_mach_mips16                16
 118   bfd_arch_i386,       /* Intel 386 */
 119 #define bfd_mach_i386_i386 0
 120 #define bfd_mach_i386_i8086 1
 121 #define bfd_mach_i386_i386_intel_syntax 2
 122 #define bfd_mach_x86_64 3
 123 #define bfd_mach_x86_64_intel_syntax 4
 124   bfd_arch_we32k,      /* AT&T WE32xxx */
 125   bfd_arch_tahoe,      /* CCI/Harris Tahoe */
 126   bfd_arch_i860,       /* Intel 860 */
 127   bfd_arch_romp,       /* IBM ROMP PC/RT */
 128   bfd_arch_alliant,    /* Alliant */
 129   bfd_arch_convex,     /* Convex */
 130   bfd_arch_m88k,       /* Motorola 88xxx */
 131   bfd_arch_pyramid,    /* Pyramid Technology */
 132   bfd_arch_h8300,      /* Hitachi H8/300 */
 133 #define bfd_mach_h8300   1
 134 #define bfd_mach_h8300h  2
 135 #define bfd_mach_h8300s  3
 136   bfd_arch_powerpc,    /* PowerPC */
 137 #define bfd_mach_ppc           0
 138 #define bfd_mach_ppc64         1
 139 #define bfd_mach_ppc_403       403
 140 #define bfd_mach_ppc_403gc     4030
 141 #define bfd_mach_ppc_e500      500
 142 #define bfd_mach_ppc_505       505
 143 #define bfd_mach_ppc_601       601
 144 #define bfd_mach_ppc_602       602
 145 #define bfd_mach_ppc_603       603
 146 #define bfd_mach_ppc_ec603e    6031
 147 #define bfd_mach_ppc_604       604
 148 #define bfd_mach_ppc_620       620
 149 #define bfd_mach_ppc_630       630
 150 #define bfd_mach_ppc_750       750
 151 #define bfd_mach_ppc_860       860
 152 #define bfd_mach_ppc_a35       35
 153 #define bfd_mach_ppc_rs64ii    642
 154 #define bfd_mach_ppc_rs64iii   643
 155 #define bfd_mach_ppc_7400      7400
 156   bfd_arch_rs6000,     /* IBM RS/6000 */
 157   bfd_arch_hppa,       /* HP PA RISC */
 158 #define bfd_mach_hppa10        10
 159 #define bfd_mach_hppa11        11
 160 #define bfd_mach_hppa20        20
 161 #define bfd_mach_hppa20w       25
 162   bfd_arch_d10v,       /* Mitsubishi D10V */
 163   bfd_arch_z8k,        /* Zilog Z8000 */
 164 #define bfd_mach_z8001         1
 165 #define bfd_mach_z8002         2
 166   bfd_arch_h8500,      /* Hitachi H8/500 */
 167   bfd_arch_sh,         /* Hitachi SH */
 168 #define bfd_mach_sh            1
 169 #define bfd_mach_sh2        0x20
 170 #define bfd_mach_sh_dsp     0x2d
 171 #define bfd_mach_sh2a       0x2a
 172 #define bfd_mach_sh2a_nofpu 0x2b
 173 #define bfd_mach_sh2e       0x2e
 174 #define bfd_mach_sh3        0x30
 175 #define bfd_mach_sh3_nommu  0x31
 176 #define bfd_mach_sh3_dsp    0x3d
 177 #define bfd_mach_sh3e       0x3e
 178 #define bfd_mach_sh4        0x40
 179 #define bfd_mach_sh4_nofpu  0x41
 180 #define bfd_mach_sh4_nommu_nofpu  0x42
 181 #define bfd_mach_sh4a       0x4a
 182 #define bfd_mach_sh4a_nofpu 0x4b
 183 #define bfd_mach_sh4al_dsp  0x4d
 184 #define bfd_mach_sh5        0x50
 185   bfd_arch_alpha,      /* Dec Alpha */
 186 #define bfd_mach_alpha 1
 187   bfd_arch_arm,        /* Advanced Risc Machines ARM */
 188 #define bfd_mach_arm_unknown    0
 189 #define bfd_mach_arm_2          1
 190 #define bfd_mach_arm_2a         2
 191 #define bfd_mach_arm_3          3
 192 #define bfd_mach_arm_3M         4
 193 #define bfd_mach_arm_4          5
 194 #define bfd_mach_arm_4T         6
 195 #define bfd_mach_arm_5          7
 196 #define bfd_mach_arm_5T         8
 197 #define bfd_mach_arm_5TE        9
 198 #define bfd_mach_arm_XScale     10
 199 #define bfd_mach_arm_ep9312     11
 200 #define bfd_mach_arm_iWMMXt     12
 201 #define bfd_mach_arm_iWMMXt2    13
 202   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
 203   bfd_arch_w65,        /* WDC 65816 */
 204   bfd_arch_tic30,      /* Texas Instruments TMS320C30 */
 205   bfd_arch_v850,       /* NEC V850 */
 206 #define bfd_mach_v850          0
 207   bfd_arch_arc,        /* Argonaut RISC Core */
 208 #define bfd_mach_arc_base 0
 209   bfd_arch_m32r,       /* Mitsubishi M32R/D */
 210 #define bfd_mach_m32r          0  /* backwards compatibility */
 211   bfd_arch_mn10200,    /* Matsushita MN10200 */
 212   bfd_arch_mn10300,    /* Matsushita MN10300 */
 213   bfd_arch_cris,       /* Axis CRIS */
 214 #define bfd_mach_cris_v0_v10   255
 215 #define bfd_mach_cris_v32      32
 216 #define bfd_mach_cris_v10_v32  1032
 217   bfd_arch_microblaze, /* Xilinx MicroBlaze.  */
 218   bfd_arch_ia64,      /* HP/Intel ia64 */
 219 #define bfd_mach_ia64_elf64    64
 220 #define bfd_mach_ia64_elf32    32
 221   bfd_arch_last
 222   };
 223 #define bfd_mach_s390_31 31
 224 #define bfd_mach_s390_64 64
 225
 226 typedef struct symbol_cache_entry
 227 {
 228     const char *name;
 229     union
 230     {
 231         PTR p;
 232         bfd_vma i;
 233     } udata;
 234 } asymbol;
 235
 236 enum dis_insn_type {
 237   dis_noninsn,                  /* Not a valid instruction */
 238   dis_nonbranch,                /* Not a branch instruction */
 239   dis_branch,                   /* Unconditional branch */
 240   dis_condbranch,               /* Conditional branch */
 241   dis_jsr,                      /* Jump to subroutine */
 242   dis_condjsr,                  /* Conditional jump to subroutine */
 243   dis_dref,                     /* Data reference instruction */
 244   dis_dref2                     /* Two data references in instruction */
 245 };
 246
 247 /* This struct is passed into the instruction decoding routine,
 248    and is passed back out into each callback.  The various fields are used
 249    for conveying information from your main routine into your callbacks,
 250    for passing information into the instruction decoders (such as the
 251    addresses of the callback functions), or for passing information
 252    back from the instruction decoders to their callers.
 253
 254    It must be initialized before it is first passed; this can be done
 255    by hand, or using one of the initialization macros below.  */
 256
 257 typedef struct disassemble_info {
 258   fprintf_function fprintf_func;
 259   FILE *stream;
 260   PTR application_data;
 261
 262   /* Target description.  We could replace this with a pointer to the bfd,
 263      but that would require one.  There currently isn't any such requirement
 264      so to avoid introducing one we record these explicitly.  */
 265   /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
 266   enum bfd_flavour flavour;
 267   /* The bfd_arch value.  */
 268   enum bfd_architecture arch;
 269   /* The bfd_mach value.  */
 270   unsigned long mach;
 271   /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
 272   enum bfd_endian endian;
 273
 274   /* An array of pointers to symbols either at the location being disassembled
 275      or at the start of the function being disassembled.  The array is sorted
 276      so that the first symbol is intended to be the one used.  The others are
 277      present for any misc. purposes.  This is not set reliably, but if it is
 278      not NULL, it is correct.  */
 279   asymbol **symbols;
 280   /* Number of symbols in array.  */
 281   int num_symbols;
 282
 283   /* For use by the disassembler.
 284      The top 16 bits are reserved for public use (and are documented here).
 285      The bottom 16 bits are for the internal use of the disassembler.  */
 286   unsigned long flags;
 287 #define INSN_HAS_RELOC  0x80000000
 288   PTR private_data;
 289
 290   /* Function used to get bytes to disassemble.  MEMADDR is the
 291      address of the stuff to be disassembled, MYADDR is the address to
 292      put the bytes in, and LENGTH is the number of bytes to read.
 293      INFO is a pointer to this struct.
 294      Returns an errno value or 0 for success.  */
 295   int (*read_memory_func)
 296     (bfd_vma memaddr, bfd_byte *myaddr, int length,
 297              struct disassemble_info *info);
 298
 299   /* Function which should be called if we get an error that we can't
 300      recover from.  STATUS is the errno value from read_memory_func and
 301      MEMADDR is the address that we were trying to read.  INFO is a
 302      pointer to this struct.  */
 303   void (*memory_error_func)
 304     (int status, bfd_vma memaddr, struct disassemble_info *info);
 305
 306   /* Function called to print ADDR.  */
 307   void (*print_address_func)
 308     (bfd_vma addr, struct disassemble_info *info);
 309
 310   /* Function called to determine if there is a symbol at the given ADDR.
 311      If there is, the function returns 1, otherwise it returns 0.
 312      This is used by ports which support an overlay manager where
 313      the overlay number is held in the top part of an address.  In
 314      some circumstances we want to include the overlay number in the
 315      address, (normally because there is a symbol associated with
 316      that address), but sometimes we want to mask out the overlay bits.  */
 317   int (* symbol_at_address_func)
 318     (bfd_vma addr, struct disassemble_info * info);
 319
 320   /* These are for buffer_read_memory.  */
 321   bfd_byte *buffer;
 322   bfd_vma buffer_vma;
 323   int buffer_length;
 324
 325   /* This variable may be set by the instruction decoder.  It suggests
 326       the number of bytes objdump should display on a single line.  If
 327       the instruction decoder sets this, it should always set it to
 328       the same value in order to get reasonable looking output.  */
 329   int bytes_per_line;
 330
 331   /* the next two variables control the way objdump displays the raw data */
 332   /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
 333   /* output will look like this:
 334      00:   00000000 00000000
 335      with the chunks displayed according to "display_endian". */
 336   int bytes_per_chunk;
 337   enum bfd_endian display_endian;
 338
 339   /* Results from instruction decoders.  Not all decoders yet support
 340      this information.  This info is set each time an instruction is
 341      decoded, and is only valid for the last such instruction.
 342
 343      To determine whether this decoder supports this information, set
 344      insn_info_valid to 0, decode an instruction, then check it.  */
 345
 346   char insn_info_valid;         /* Branch info has been set. */
 347   char branch_delay_insns;      /* How many sequential insn's will run before
 348                                    a branch takes effect.  (0 = normal) */
 349   char data_size;               /* Size of data reference in insn, in bytes */
 350   enum dis_insn_type insn_type; /* Type of instruction */
 351   bfd_vma target;               /* Target address of branch or dref, if known;
 352                                    zero if unknown.  */
 353   bfd_vma target2;              /* Second target address for dref2 */
 354
 355   /* Command line options specific to the target disassembler.  */
 356   char * disassembler_options;
 357
 358 } disassemble_info;
 359
 360 \f
 361 /* Standard disassemblers.  Disassemble one instruction at the given
 362    target address.  Return number of bytes processed.  */
 363 typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
 364
 365 extern int print_insn_big_mips          (bfd_vma, disassemble_info*);
 366 extern int print_insn_little_mips       (bfd_vma, disassemble_info*);
 367 extern int print_insn_i386              (bfd_vma, disassemble_info*);
 368 extern int print_insn_m68k              (bfd_vma, disassemble_info*);
 369 extern int print_insn_z8001             (bfd_vma, disassemble_info*);
 370 extern int print_insn_z8002             (bfd_vma, disassemble_info*);
 371 extern int print_insn_h8300             (bfd_vma, disassemble_info*);
 372 extern int print_insn_h8300h            (bfd_vma, disassemble_info*);
 373 extern int print_insn_h8300s            (bfd_vma, disassemble_info*);
 374 extern int print_insn_h8500             (bfd_vma, disassemble_info*);
 375 extern int print_insn_alpha             (bfd_vma, disassemble_info*);
 376 extern disassembler_ftype arc_get_disassembler (int, int);
 377 extern int print_insn_arm               (bfd_vma, disassemble_info*);
 378 extern int print_insn_sparc             (bfd_vma, disassemble_info*);
 379 extern int print_insn_big_a29k          (bfd_vma, disassemble_info*);
 380 extern int print_insn_little_a29k       (bfd_vma, disassemble_info*);
 381 extern int print_insn_i960              (bfd_vma, disassemble_info*);
 382 extern int print_insn_sh                (bfd_vma, disassemble_info*);
 383 extern int print_insn_shl               (bfd_vma, disassemble_info*);
 384 extern int print_insn_hppa              (bfd_vma, disassemble_info*);
 385 extern int print_insn_m32r              (bfd_vma, disassemble_info*);
 386 extern int print_insn_m88k              (bfd_vma, disassemble_info*);
 387 extern int print_insn_mn10200           (bfd_vma, disassemble_info*);
 388 extern int print_insn_mn10300           (bfd_vma, disassemble_info*);
 389 extern int print_insn_ns32k             (bfd_vma, disassemble_info*);
 390 extern int print_insn_big_powerpc       (bfd_vma, disassemble_info*);
 391 extern int print_insn_little_powerpc    (bfd_vma, disassemble_info*);
 392 extern int print_insn_rs6000            (bfd_vma, disassemble_info*);
 393 extern int print_insn_w65               (bfd_vma, disassemble_info*);
 394 extern int print_insn_d10v              (bfd_vma, disassemble_info*);
 395 extern int print_insn_v850              (bfd_vma, disassemble_info*);
 396 extern int print_insn_tic30             (bfd_vma, disassemble_info*);
 397 extern int print_insn_ppc               (bfd_vma, disassemble_info*);
 398 extern int print_insn_s390              (bfd_vma, disassemble_info*);
 399 extern int print_insn_crisv32           (bfd_vma, disassemble_info*);
 400 extern int print_insn_microblaze        (bfd_vma, disassemble_info*);
 401 extern int print_insn_ia64              (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  (bfd *);
 406 #endif
 407
 408 \f
 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   (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 (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 (bfd_vma, struct disassemble_info *);
 426
 427 /* Always true.  */
 428 extern int generic_symbol_at_address (bfd_vma, struct disassemble_info *);
 429
 430 /* Macro to initialize a disassemble_info struct.  This should be called
 431    by all applications creating such a struct.  */
 432 #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
 433   (INFO).flavour = bfd_target_unknown_flavour, \
 434   (INFO).arch = bfd_arch_unknown, \
 435   (INFO).mach = 0, \
 436   (INFO).endian = BFD_ENDIAN_UNKNOWN, \
 437   INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
 438
 439 /* Call this macro to initialize only the internal variables for the
 440    disassembler.  Architecture dependent things such as byte order, or machine
 441    variant are not touched by this macro.  This makes things much easier for
 442    GDB which must initialize these things separately.  */
 443
 444 #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
 445   (INFO).fprintf_func = (FPRINTF_FUNC), \
 446   (INFO).stream = (STREAM), \
 447   (INFO).symbols = NULL, \
 448   (INFO).num_symbols = 0, \
 449   (INFO).private_data = NULL, \
 450   (INFO).buffer = NULL, \
 451   (INFO).buffer_vma = 0, \
 452   (INFO).buffer_length = 0, \
 453   (INFO).read_memory_func = buffer_read_memory, \
 454   (INFO).memory_error_func = perror_memory, \
 455   (INFO).print_address_func = generic_print_address, \
 456   (INFO).symbol_at_address_func = generic_symbol_at_address, \
 457   (INFO).flags = 0, \
 458   (INFO).bytes_per_line = 0, \
 459   (INFO).bytes_per_chunk = 0, \
 460   (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
 461   (INFO).disassembler_options = NULL, \
 462   (INFO).insn_info_valid = 0
 463
 464 #define _(x) x
 465 #define ATTRIBUTE_UNUSED __attribute__((unused))
 466
 467 /* from libbfd */
 468
 469 bfd_vma bfd_getl64 (const bfd_byte *addr);
 470 bfd_vma bfd_getl32 (const bfd_byte *addr);
 471 bfd_vma bfd_getb32 (const bfd_byte *addr);
 472 bfd_vma bfd_getl16 (const bfd_byte *addr);
 473 bfd_vma bfd_getb16 (const bfd_byte *addr);
 474 typedef bool bfd_boolean;
 475
 476 #endif /* ! defined (DIS_ASM_H) */