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 <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_e500      500
 146 #define bfd_mach_ppc_505       505
 147 #define bfd_mach_ppc_601       601
 148 #define bfd_mach_ppc_602       602
 149 #define bfd_mach_ppc_603       603
 150 #define bfd_mach_ppc_ec603e    6031
 151 #define bfd_mach_ppc_604       604
 152 #define bfd_mach_ppc_620       620
 153 #define bfd_mach_ppc_630       630
 154 #define bfd_mach_ppc_750       750
 155 #define bfd_mach_ppc_860       860
 156 #define bfd_mach_ppc_a35       35
 157 #define bfd_mach_ppc_rs64ii    642
 158 #define bfd_mach_ppc_rs64iii   643
 159 #define bfd_mach_ppc_7400      7400
 160   bfd_arch_rs6000,     /* IBM RS/6000 */
 161   bfd_arch_hppa,       /* HP PA RISC */
 162 #define bfd_mach_hppa10        10
 163 #define bfd_mach_hppa11        11
 164 #define bfd_mach_hppa20        20
 165 #define bfd_mach_hppa20w       25
 166   bfd_arch_d10v,       /* Mitsubishi D10V */
 167   bfd_arch_z8k,        /* Zilog Z8000 */
 168 #define bfd_mach_z8001         1
 169 #define bfd_mach_z8002         2
 170   bfd_arch_h8500,      /* Hitachi H8/500 */
 171   bfd_arch_sh,         /* Hitachi SH */
 172 #define bfd_mach_sh            1
 173 #define bfd_mach_sh2        0x20
 174 #define bfd_mach_sh_dsp     0x2d
 175 #define bfd_mach_sh2a       0x2a
 176 #define bfd_mach_sh2a_nofpu 0x2b
 177 #define bfd_mach_sh2e       0x2e
 178 #define bfd_mach_sh3        0x30
 179 #define bfd_mach_sh3_nommu  0x31
 180 #define bfd_mach_sh3_dsp    0x3d
 181 #define bfd_mach_sh3e       0x3e
 182 #define bfd_mach_sh4        0x40
 183 #define bfd_mach_sh4_nofpu  0x41
 184 #define bfd_mach_sh4_nommu_nofpu  0x42
 185 #define bfd_mach_sh4a       0x4a
 186 #define bfd_mach_sh4a_nofpu 0x4b
 187 #define bfd_mach_sh4al_dsp  0x4d
 188 #define bfd_mach_sh5        0x50
 189   bfd_arch_alpha,      /* Dec Alpha */
 190 #define bfd_mach_alpha 1
 191   bfd_arch_arm,        /* Advanced Risc Machines ARM */
 192 #define bfd_mach_arm_unknown    0
 193 #define bfd_mach_arm_2          1
 194 #define bfd_mach_arm_2a         2
 195 #define bfd_mach_arm_3          3
 196 #define bfd_mach_arm_3M         4
 197 #define bfd_mach_arm_4          5
 198 #define bfd_mach_arm_4T         6
 199 #define bfd_mach_arm_5          7
 200 #define bfd_mach_arm_5T         8
 201 #define bfd_mach_arm_5TE        9
 202 #define bfd_mach_arm_XScale     10
 203 #define bfd_mach_arm_ep9312     11
 204 #define bfd_mach_arm_iWMMXt     12
 205 #define bfd_mach_arm_iWMMXt2    13
 206   bfd_arch_ns32k,      /* National Semiconductors ns32000 */
 207   bfd_arch_w65,        /* WDC 65816 */
 208   bfd_arch_tic30,      /* Texas Instruments TMS320C30 */
 209   bfd_arch_v850,       /* NEC V850 */
 210 #define bfd_mach_v850          0
 211   bfd_arch_arc,        /* Argonaut RISC Core */
 212 #define bfd_mach_arc_base 0
 213   bfd_arch_m32r,       /* Mitsubishi M32R/D */
 214 #define bfd_mach_m32r          0  /* backwards compatibility */
 215   bfd_arch_mn10200,    /* Matsushita MN10200 */
 216   bfd_arch_mn10300,    /* Matsushita MN10300 */
 217   bfd_arch_cris,       /* Axis CRIS */
 218 #define bfd_mach_cris_v0_v10   255
 219 #define bfd_mach_cris_v32      32
 220 #define bfd_mach_cris_v10_v32  1032
 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 typedef int (*fprintf_ftype) PARAMS((FILE*, const char*, ...));
 237
 238 enum dis_insn_type {
 239   dis_noninsn,                  /* Not a valid instruction */
 240   dis_nonbranch,                /* Not a branch instruction */
 241   dis_branch,                   /* Unconditional branch */
 242   dis_condbranch,               /* Conditional branch */
 243   dis_jsr,                      /* Jump to subroutine */
 244   dis_condjsr,                  /* Conditional jump to subroutine */
 245   dis_dref,                     /* Data reference instruction */
 246   dis_dref2                     /* Two data references in instruction */
 247 };
 248
 249 /* This struct is passed into the instruction decoding routine,
 250    and is passed back out into each callback.  The various fields are used
 251    for conveying information from your main routine into your callbacks,
 252    for passing information into the instruction decoders (such as the
 253    addresses of the callback functions), or for passing information
 254    back from the instruction decoders to their callers.
 255
 256    It must be initialized before it is first passed; this can be done
 257    by hand, or using one of the initialization macros below.  */
 258
 259 typedef struct disassemble_info {
 260   fprintf_ftype fprintf_func;
 261   FILE *stream;
 262   PTR application_data;
 263
 264   /* Target description.  We could replace this with a pointer to the bfd,
 265      but that would require one.  There currently isn't any such requirement
 266      so to avoid introducing one we record these explicitly.  */
 267   /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
 268   enum bfd_flavour flavour;
 269   /* The bfd_arch value.  */
 270   enum bfd_architecture arch;
 271   /* The bfd_mach value.  */
 272   unsigned long mach;
 273   /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
 274   enum bfd_endian endian;
 275
 276   /* An array of pointers to symbols either at the location being disassembled
 277      or at the start of the function being disassembled.  The array is sorted
 278      so that the first symbol is intended to be the one used.  The others are
 279      present for any misc. purposes.  This is not set reliably, but if it is
 280      not NULL, it is correct.  */
 281   asymbol **symbols;
 282   /* Number of symbols in array.  */
 283   int num_symbols;
 284
 285   /* For use by the disassembler.
 286      The top 16 bits are reserved for public use (and are documented here).
 287      The bottom 16 bits are for the internal use of the disassembler.  */
 288   unsigned long flags;
 289 #define INSN_HAS_RELOC  0x80000000
 290   PTR private_data;
 291
 292   /* Function used to get bytes to disassemble.  MEMADDR is the
 293      address of the stuff to be disassembled, MYADDR is the address to
 294      put the bytes in, and LENGTH is the number of bytes to read.
 295      INFO is a pointer to this struct.
 296      Returns an errno value or 0 for success.  */
 297   int (*read_memory_func)
 298     PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, int length,
 299              struct disassemble_info *info));
 300
 301   /* Function which should be called if we get an error that we can't
 302      recover from.  STATUS is the errno value from read_memory_func and
 303      MEMADDR is the address that we were trying to read.  INFO is a
 304      pointer to this struct.  */
 305   void (*memory_error_func)
 306     PARAMS ((int status, bfd_vma memaddr, struct disassemble_info *info));
 307
 308   /* Function called to print ADDR.  */
 309   void (*print_address_func)
 310     PARAMS ((bfd_vma addr, struct disassemble_info *info));
 311
 312   /* Function called to determine if there is a symbol at the given ADDR.
 313      If there is, the function returns 1, otherwise it returns 0.
 314      This is used by ports which support an overlay manager where
 315      the overlay number is held in the top part of an address.  In
 316      some circumstances we want to include the overlay number in the
 317      address, (normally because there is a symbol associated with
 318      that address), but sometimes we want to mask out the overlay bits.  */
 319   int (* symbol_at_address_func)
 320     PARAMS ((bfd_vma addr, struct disassemble_info * info));
 321
 322   /* These are for buffer_read_memory.  */
 323   bfd_byte *buffer;
 324   bfd_vma buffer_vma;
 325   int buffer_length;
 326
 327   /* This variable may be set by the instruction decoder.  It suggests
 328       the number of bytes objdump should display on a single line.  If
 329       the instruction decoder sets this, it should always set it to
 330       the same value in order to get reasonable looking output.  */
 331   int bytes_per_line;
 332
 333   /* the next two variables control the way objdump displays the raw data */
 334   /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
 335   /* output will look like this:
 336      00:   00000000 00000000
 337      with the chunks displayed according to "display_endian". */
 338   int bytes_per_chunk;
 339   enum bfd_endian display_endian;
 340
 341   /* Results from instruction decoders.  Not all decoders yet support
 342      this information.  This info is set each time an instruction is
 343      decoded, and is only valid for the last such instruction.
 344
 345      To determine whether this decoder supports this information, set
 346      insn_info_valid to 0, decode an instruction, then check it.  */
 347
 348   char insn_info_valid;         /* Branch info has been set. */
 349   char branch_delay_insns;      /* How many sequential insn's will run before
 350                                    a branch takes effect.  (0 = normal) */
 351   char data_size;               /* Size of data reference in insn, in bytes */
 352   enum dis_insn_type insn_type; /* Type of instruction */
 353   bfd_vma target;               /* Target address of branch or dref, if known;
 354                                    zero if unknown.  */
 355   bfd_vma target2;              /* Second target address for dref2 */
 356
 357   /* Command line options specific to the target disassembler.  */
 358   char * disassembler_options;
 359
 360 } disassemble_info;
 361
 362 \f
 363 /* Standard disassemblers.  Disassemble one instruction at the given
 364    target address.  Return number of bytes processed.  */
 365 typedef int (*disassembler_ftype)
 366      PARAMS((bfd_vma, disassemble_info *));
 367
 368 extern int print_insn_big_mips          PARAMS ((bfd_vma, disassemble_info*));
 369 extern int print_insn_little_mips       PARAMS ((bfd_vma, disassemble_info*));
 370 extern int print_insn_i386              PARAMS ((bfd_vma, disassemble_info*));
 371 extern int print_insn_m68k              PARAMS ((bfd_vma, disassemble_info*));
 372 extern int print_insn_z8001             PARAMS ((bfd_vma, disassemble_info*));
 373 extern int print_insn_z8002             PARAMS ((bfd_vma, disassemble_info*));
 374 extern int print_insn_h8300             PARAMS ((bfd_vma, disassemble_info*));
 375 extern int print_insn_h8300h            PARAMS ((bfd_vma, disassemble_info*));
 376 extern int print_insn_h8300s            PARAMS ((bfd_vma, disassemble_info*));
 377 extern int print_insn_h8500             PARAMS ((bfd_vma, disassemble_info*));
 378 extern int print_insn_alpha             PARAMS ((bfd_vma, disassemble_info*));
 379 extern disassembler_ftype arc_get_disassembler PARAMS ((int, int));
 380 extern int print_insn_arm               PARAMS ((bfd_vma, disassemble_info*));
 381 extern int print_insn_sparc             PARAMS ((bfd_vma, disassemble_info*));
 382 extern int print_insn_big_a29k          PARAMS ((bfd_vma, disassemble_info*));
 383 extern int print_insn_little_a29k       PARAMS ((bfd_vma, disassemble_info*));
 384 extern int print_insn_i960              PARAMS ((bfd_vma, disassemble_info*));
 385 extern int print_insn_sh                PARAMS ((bfd_vma, disassemble_info*));
 386 extern int print_insn_shl               PARAMS ((bfd_vma, disassemble_info*));
 387 extern int print_insn_hppa              PARAMS ((bfd_vma, disassemble_info*));
 388 extern int print_insn_m32r              PARAMS ((bfd_vma, disassemble_info*));
 389 extern int print_insn_m88k              PARAMS ((bfd_vma, disassemble_info*));
 390 extern int print_insn_mn10200           PARAMS ((bfd_vma, disassemble_info*));
 391 extern int print_insn_mn10300           PARAMS ((bfd_vma, disassemble_info*));
 392 extern int print_insn_ns32k             PARAMS ((bfd_vma, disassemble_info*));
 393 extern int print_insn_big_powerpc       PARAMS ((bfd_vma, disassemble_info*));
 394 extern int print_insn_little_powerpc    PARAMS ((bfd_vma, disassemble_info*));
 395 extern int print_insn_rs6000            PARAMS ((bfd_vma, disassemble_info*));
 396 extern int print_insn_w65               PARAMS ((bfd_vma, disassemble_info*));
 397 extern int print_insn_d10v              PARAMS ((bfd_vma, disassemble_info*));
 398 extern int print_insn_v850              PARAMS ((bfd_vma, disassemble_info*));
 399 extern int print_insn_tic30             PARAMS ((bfd_vma, disassemble_info*));
 400 extern int print_insn_ppc               PARAMS ((bfd_vma, disassemble_info*));
 401 extern int print_insn_s390              PARAMS ((bfd_vma, disassemble_info*));
 402 extern int print_insn_crisv32           PARAMS ((bfd_vma, disassemble_info*));
 403
 404 #if 0
 405 /* Fetch the disassembler for a given BFD, if that support is available.  */
 406 extern disassembler_ftype disassembler  PARAMS ((bfd *));
 407 #endif
 408
 409 \f
 410 /* This block of definitions is for particular callers who read instructions
 411    into a buffer before calling the instruction decoder.  */
 412
 413 /* Here is a function which callers may wish to use for read_memory_func.
 414    It gets bytes from a buffer.  */
 415 extern int buffer_read_memory
 416   PARAMS ((bfd_vma, bfd_byte *, int, struct disassemble_info *));
 417
 418 /* This function goes with buffer_read_memory.
 419    It prints a message using info->fprintf_func and info->stream.  */
 420 extern void perror_memory PARAMS ((int, bfd_vma, struct disassemble_info *));
 421
 422
 423 /* Just print the address in hex.  This is included for completeness even
 424    though both GDB and objdump provide their own (to print symbolic
 425    addresses).  */
 426 extern void generic_print_address
 427   PARAMS ((bfd_vma, struct disassemble_info *));
 428
 429 /* Always true.  */
 430 extern int generic_symbol_at_address
 431   PARAMS ((bfd_vma, struct disassemble_info *));
 432
 433 /* Macro to initialize a disassemble_info struct.  This should be called
 434    by all applications creating such a struct.  */
 435 #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
 436   (INFO).flavour = bfd_target_unknown_flavour, \
 437   (INFO).arch = bfd_arch_unknown, \
 438   (INFO).mach = 0, \
 439   (INFO).endian = BFD_ENDIAN_UNKNOWN, \
 440   INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
 441
 442 /* Call this macro to initialize only the internal variables for the
 443    disassembler.  Architecture dependent things such as byte order, or machine
 444    variant are not touched by this macro.  This makes things much easier for
 445    GDB which must initialize these things separately.  */
 446
 447 #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
 448   (INFO).fprintf_func = (FPRINTF_FUNC), \
 449   (INFO).stream = (STREAM), \
 450   (INFO).symbols = NULL, \
 451   (INFO).num_symbols = 0, \
 452   (INFO).private_data = NULL, \
 453   (INFO).buffer = NULL, \
 454   (INFO).buffer_vma = 0, \
 455   (INFO).buffer_length = 0, \
 456   (INFO).read_memory_func = buffer_read_memory, \
 457   (INFO).memory_error_func = perror_memory, \
 458   (INFO).print_address_func = generic_print_address, \
 459   (INFO).symbol_at_address_func = generic_symbol_at_address, \
 460   (INFO).flags = 0, \
 461   (INFO).bytes_per_line = 0, \
 462   (INFO).bytes_per_chunk = 0, \
 463   (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
 464   (INFO).disassembler_options = NULL, \
 465   (INFO).insn_info_valid = 0
 466
 467 #define _(x) x
 468 #define ATTRIBUTE_UNUSED __attribute__((unused))
 469
 470 /* from libbfd */
 471
 472 bfd_vma bfd_getl32 (const bfd_byte *addr);
 473 bfd_vma bfd_getb32 (const bfd_byte *addr);
 474 bfd_vma bfd_getl16 (const bfd_byte *addr);
 475 bfd_vma bfd_getb16 (const bfd_byte *addr);
 476 typedef enum bfd_boolean {false, true} boolean;
 477 typedef boolean bfd_boolean;
 478
 479 #endif /* ! defined (DIS_ASM_H) */