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