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 #define bfd_mach_alpha_ev4  0x10
 188 #define bfd_mach_alpha_ev5  0x20
 189 #define bfd_mach_alpha_ev6  0x30
 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_microblaze, /* Xilinx MicroBlaze.  */
 221   bfd_arch_ia64,      /* HP/Intel ia64 */
 222 #define bfd_mach_ia64_elf64    64
 223 #define bfd_mach_ia64_elf32    32
 224   bfd_arch_lm32,       /* Lattice Mico32 */
 225 #define bfd_mach_lm32 1
 226   bfd_arch_last
 227   };
 228 #define bfd_mach_s390_31 31
 229 #define bfd_mach_s390_64 64
 230
 231 typedef struct symbol_cache_entry
 232 {
 233     const char *name;
 234     union
 235     {
 236         PTR p;
 237         bfd_vma i;
 238     } udata;
 239 } asymbol;
 240
 241 enum dis_insn_type {
 242   dis_noninsn,                  /* Not a valid instruction */
 243   dis_nonbranch,                /* Not a branch instruction */
 244   dis_branch,                   /* Unconditional branch */
 245   dis_condbranch,               /* Conditional branch */
 246   dis_jsr,                      /* Jump to subroutine */
 247   dis_condjsr,                  /* Conditional jump to subroutine */
 248   dis_dref,                     /* Data reference instruction */
 249   dis_dref2                     /* Two data references in instruction */
 250 };
 251
 252 /* This struct is passed into the instruction decoding routine,
 253    and is passed back out into each callback.  The various fields are used
 254    for conveying information from your main routine into your callbacks,
 255    for passing information into the instruction decoders (such as the
 256    addresses of the callback functions), or for passing information
 257    back from the instruction decoders to their callers.
 258
 259    It must be initialized before it is first passed; this can be done
 260    by hand, or using one of the initialization macros below.  */
 261
 262 typedef struct disassemble_info {
 263   fprintf_function fprintf_func;
 264   FILE *stream;
 265   PTR application_data;
 266
 267   /* Target description.  We could replace this with a pointer to the bfd,
 268      but that would require one.  There currently isn't any such requirement
 269      so to avoid introducing one we record these explicitly.  */
 270   /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
 271   enum bfd_flavour flavour;
 272   /* The bfd_arch value.  */
 273   enum bfd_architecture arch;
 274   /* The bfd_mach value.  */
 275   unsigned long mach;
 276   /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
 277   enum bfd_endian endian;
 278
 279   /* An array of pointers to symbols either at the location being disassembled
 280      or at the start of the function being disassembled.  The array is sorted
 281      so that the first symbol is intended to be the one used.  The others are
 282      present for any misc. purposes.  This is not set reliably, but if it is
 283      not NULL, it is correct.  */
 284   asymbol **symbols;
 285   /* Number of symbols in array.  */
 286   int num_symbols;
 287
 288   /* For use by the disassembler.
 289      The top 16 bits are reserved for public use (and are documented here).
 290      The bottom 16 bits are for the internal use of the disassembler.  */
 291   unsigned long flags;
 292 #define INSN_HAS_RELOC  0x80000000
 293   PTR private_data;
 294
 295   /* Function used to get bytes to disassemble.  MEMADDR is the
 296      address of the stuff to be disassembled, MYADDR is the address to
 297      put the bytes in, and LENGTH is the number of bytes to read.
 298      INFO is a pointer to this struct.
 299      Returns an errno value or 0 for success.  */
 300   int (*read_memory_func)
 301     (bfd_vma memaddr, bfd_byte *myaddr, int length,
 302              struct disassemble_info *info);
 303
 304   /* Function which should be called if we get an error that we can't
 305      recover from.  STATUS is the errno value from read_memory_func and
 306      MEMADDR is the address that we were trying to read.  INFO is a
 307      pointer to this struct.  */
 308   void (*memory_error_func)
 309     (int status, bfd_vma memaddr, struct disassemble_info *info);
 310
 311   /* Function called to print ADDR.  */
 312   void (*print_address_func)
 313     (bfd_vma addr, struct disassemble_info *info);
 314
 315   /* Function called to determine if there is a symbol at the given ADDR.
 316      If there is, the function returns 1, otherwise it returns 0.
 317      This is used by ports which support an overlay manager where
 318      the overlay number is held in the top part of an address.  In
 319      some circumstances we want to include the overlay number in the
 320      address, (normally because there is a symbol associated with
 321      that address), but sometimes we want to mask out the overlay bits.  */
 322   int (* symbol_at_address_func)
 323     (bfd_vma addr, struct disassemble_info * info);
 324
 325   /* These are for buffer_read_memory.  */
 326   bfd_byte *buffer;
 327   bfd_vma buffer_vma;
 328   int buffer_length;
 329
 330   /* This variable may be set by the instruction decoder.  It suggests
 331       the number of bytes objdump should display on a single line.  If
 332       the instruction decoder sets this, it should always set it to
 333       the same value in order to get reasonable looking output.  */
 334   int bytes_per_line;
 335
 336   /* the next two variables control the way objdump displays the raw data */
 337   /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
 338   /* output will look like this:
 339      00:   00000000 00000000
 340      with the chunks displayed according to "display_endian". */
 341   int bytes_per_chunk;
 342   enum bfd_endian display_endian;
 343
 344   /* Results from instruction decoders.  Not all decoders yet support
 345      this information.  This info is set each time an instruction is
 346      decoded, and is only valid for the last such instruction.
 347
 348      To determine whether this decoder supports this information, set
 349      insn_info_valid to 0, decode an instruction, then check it.  */
 350
 351   char insn_info_valid;         /* Branch info has been set. */
 352   char branch_delay_insns;      /* How many sequential insn's will run before
 353                                    a branch takes effect.  (0 = normal) */
 354   char data_size;               /* Size of data reference in insn, in bytes */
 355   enum dis_insn_type insn_type; /* Type of instruction */
 356   bfd_vma target;               /* Target address of branch or dref, if known;
 357                                    zero if unknown.  */
 358   bfd_vma target2;              /* Second target address for dref2 */
 359
 360   /* Command line options specific to the target disassembler.  */
 361   char * disassembler_options;
 362
 363 } disassemble_info;
 364
 365 \f
 366 /* Standard disassemblers.  Disassemble one instruction at the given
 367    target address.  Return number of bytes processed.  */
 368 typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
 369
 370 int print_insn_tci(bfd_vma, disassemble_info*);
 371 int print_insn_big_mips         (bfd_vma, disassemble_info*);
 372 int print_insn_little_mips      (bfd_vma, disassemble_info*);
 373 int print_insn_i386             (bfd_vma, disassemble_info*);
 374 int print_insn_m68k             (bfd_vma, disassemble_info*);
 375 int print_insn_z8001            (bfd_vma, disassemble_info*);
 376 int print_insn_z8002            (bfd_vma, disassemble_info*);
 377 int print_insn_h8300            (bfd_vma, disassemble_info*);
 378 int print_insn_h8300h           (bfd_vma, disassemble_info*);
 379 int print_insn_h8300s           (bfd_vma, disassemble_info*);
 380 int print_insn_h8500            (bfd_vma, disassemble_info*);
 381 int print_insn_alpha            (bfd_vma, disassemble_info*);
 382 disassembler_ftype arc_get_disassembler (int, int);
 383 int print_insn_arm              (bfd_vma, disassemble_info*);
 384 int print_insn_sparc            (bfd_vma, disassemble_info*);
 385 int print_insn_big_a29k         (bfd_vma, disassemble_info*);
 386 int print_insn_little_a29k      (bfd_vma, disassemble_info*);
 387 int print_insn_i960             (bfd_vma, disassemble_info*);
 388 int print_insn_sh               (bfd_vma, disassemble_info*);
 389 int print_insn_shl              (bfd_vma, disassemble_info*);
 390 int print_insn_hppa             (bfd_vma, disassemble_info*);
 391 int print_insn_m32r             (bfd_vma, disassemble_info*);
 392 int print_insn_m88k             (bfd_vma, disassemble_info*);
 393 int print_insn_mn10200          (bfd_vma, disassemble_info*);
 394 int print_insn_mn10300          (bfd_vma, disassemble_info*);
 395 int print_insn_ns32k            (bfd_vma, disassemble_info*);
 396 int print_insn_big_powerpc      (bfd_vma, disassemble_info*);
 397 int print_insn_little_powerpc   (bfd_vma, disassemble_info*);
 398 int print_insn_rs6000           (bfd_vma, disassemble_info*);
 399 int print_insn_w65              (bfd_vma, disassemble_info*);
 400 int print_insn_d10v             (bfd_vma, disassemble_info*);
 401 int print_insn_v850             (bfd_vma, disassemble_info*);
 402 int print_insn_tic30            (bfd_vma, disassemble_info*);
 403 int print_insn_ppc              (bfd_vma, disassemble_info*);
 404 int print_insn_s390             (bfd_vma, disassemble_info*);
 405 int print_insn_crisv32          (bfd_vma, disassemble_info*);
 406 int print_insn_crisv10          (bfd_vma, disassemble_info*);
 407 int print_insn_microblaze       (bfd_vma, disassemble_info*);
 408 int print_insn_ia64             (bfd_vma, disassemble_info*);
 409 int print_insn_lm32             (bfd_vma, disassemble_info*);
 410
 411 #if 0
 412 /* Fetch the disassembler for a given BFD, if that support is available.  */
 413 disassembler_ftype disassembler(bfd *);
 414 #endif
 415
 416 \f
 417 /* This block of definitions is for particular callers who read instructions
 418    into a buffer before calling the instruction decoder.  */
 419
 420 /* Here is a function which callers may wish to use for read_memory_func.
 421    It gets bytes from a buffer.  */
 422 int buffer_read_memory(bfd_vma, bfd_byte *, int, struct disassemble_info *);
 423
 424 /* This function goes with buffer_read_memory.
 425    It prints a message using info->fprintf_func and info->stream.  */
 426 void perror_memory(int, bfd_vma, struct disassemble_info *);
 427
 428
 429 /* Just print the address in hex.  This is included for completeness even
 430    though both GDB and objdump provide their own (to print symbolic
 431    addresses).  */
 432 void generic_print_address(bfd_vma, struct disassemble_info *);
 433
 434 /* Always true.  */
 435 int generic_symbol_at_address(bfd_vma, struct disassemble_info *);
 436
 437 /* Macro to initialize a disassemble_info struct.  This should be called
 438    by all applications creating such a struct.  */
 439 #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
 440   (INFO).flavour = bfd_target_unknown_flavour, \
 441   (INFO).arch = bfd_arch_unknown, \
 442   (INFO).mach = 0, \
 443   (INFO).endian = BFD_ENDIAN_UNKNOWN, \
 444   INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
 445
 446 /* Call this macro to initialize only the internal variables for the
 447    disassembler.  Architecture dependent things such as byte order, or machine
 448    variant are not touched by this macro.  This makes things much easier for
 449    GDB which must initialize these things separately.  */
 450
 451 #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
 452   (INFO).fprintf_func = (FPRINTF_FUNC), \
 453   (INFO).stream = (STREAM), \
 454   (INFO).symbols = NULL, \
 455   (INFO).num_symbols = 0, \
 456   (INFO).private_data = NULL, \
 457   (INFO).buffer = NULL, \
 458   (INFO).buffer_vma = 0, \
 459   (INFO).buffer_length = 0, \
 460   (INFO).read_memory_func = buffer_read_memory, \
 461   (INFO).memory_error_func = perror_memory, \
 462   (INFO).print_address_func = generic_print_address, \
 463   (INFO).symbol_at_address_func = generic_symbol_at_address, \
 464   (INFO).flags = 0, \
 465   (INFO).bytes_per_line = 0, \
 466   (INFO).bytes_per_chunk = 0, \
 467   (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
 468   (INFO).disassembler_options = NULL, \
 469   (INFO).insn_info_valid = 0
 470
 471 #define _(x) x
 472 #define ATTRIBUTE_UNUSED __attribute__((unused))
 473
 474 /* from libbfd */
 475
 476 bfd_vma bfd_getl64 (const bfd_byte *addr);
 477 bfd_vma bfd_getl32 (const bfd_byte *addr);
 478 bfd_vma bfd_getb32 (const bfd_byte *addr);
 479 bfd_vma bfd_getl16 (const bfd_byte *addr);
 480 bfd_vma bfd_getb16 (const bfd_byte *addr);
 481 typedef bool bfd_boolean;
 482
 483 #endif /* ! defined (DIS_ASM_H) */