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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 "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_moxie,      /* The Moxie core.  */
    222   bfd_arch_ia64,      /* HP/Intel ia64 */
    223 #define bfd_mach_ia64_elf64    64
    224 #define bfd_mach_ia64_elf32    32
    225   bfd_arch_lm32,       /* Lattice Mico32 */
    226 #define bfd_mach_lm32 1
    227   bfd_arch_last
    228   };
    229 #define bfd_mach_s390_31 31
    230 #define bfd_mach_s390_64 64
    231 
    232 typedef struct symbol_cache_entry
    233 {
    234     const char *name;
    235     union
    236     {
    237         PTR p;
    238         bfd_vma i;
    239     } udata;
    240 } asymbol;
    241 
    242 enum dis_insn_type {
    243   dis_noninsn,			/* Not a valid instruction */
    244   dis_nonbranch,		/* Not a branch instruction */
    245   dis_branch,			/* Unconditional branch */
    246   dis_condbranch,		/* Conditional branch */
    247   dis_jsr,			/* Jump to subroutine */
    248   dis_condjsr,			/* Conditional jump to subroutine */
    249   dis_dref,			/* Data reference instruction */
    250   dis_dref2			/* Two data references in instruction */
    251 };
    252 
    253 /* This struct is passed into the instruction decoding routine,
    254    and is passed back out into each callback.  The various fields are used
    255    for conveying information from your main routine into your callbacks,
    256    for passing information into the instruction decoders (such as the
    257    addresses of the callback functions), or for passing information
    258    back from the instruction decoders to their callers.
    259 
    260    It must be initialized before it is first passed; this can be done
    261    by hand, or using one of the initialization macros below.  */
    262 
    263 typedef struct disassemble_info {
    264   fprintf_function fprintf_func;
    265   FILE *stream;
    266   PTR application_data;
    267 
    268   /* Target description.  We could replace this with a pointer to the bfd,
    269      but that would require one.  There currently isn't any such requirement
    270      so to avoid introducing one we record these explicitly.  */
    271   /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
    272   enum bfd_flavour flavour;
    273   /* The bfd_arch value.  */
    274   enum bfd_architecture arch;
    275   /* The bfd_mach value.  */
    276   unsigned long mach;
    277   /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
    278   enum bfd_endian endian;
    279 
    280   /* An array of pointers to symbols either at the location being disassembled
    281      or at the start of the function being disassembled.  The array is sorted
    282      so that the first symbol is intended to be the one used.  The others are
    283      present for any misc. purposes.  This is not set reliably, but if it is
    284      not NULL, it is correct.  */
    285   asymbol **symbols;
    286   /* Number of symbols in array.  */
    287   int num_symbols;
    288 
    289   /* For use by the disassembler.
    290      The top 16 bits are reserved for public use (and are documented here).
    291      The bottom 16 bits are for the internal use of the disassembler.  */
    292   unsigned long flags;
    293 #define INSN_HAS_RELOC	0x80000000
    294   PTR private_data;
    295 
    296   /* Function used to get bytes to disassemble.  MEMADDR is the
    297      address of the stuff to be disassembled, MYADDR is the address to
    298      put the bytes in, and LENGTH is the number of bytes to read.
    299      INFO is a pointer to this struct.
    300      Returns an errno value or 0 for success.  */
    301   int (*read_memory_func)
    302     (bfd_vma memaddr, bfd_byte *myaddr, int length,
    303 	     struct disassemble_info *info);
    304 
    305   /* Function which should be called if we get an error that we can't
    306      recover from.  STATUS is the errno value from read_memory_func and
    307      MEMADDR is the address that we were trying to read.  INFO is a
    308      pointer to this struct.  */
    309   void (*memory_error_func)
    310     (int status, bfd_vma memaddr, struct disassemble_info *info);
    311 
    312   /* Function called to print ADDR.  */
    313   void (*print_address_func)
    314     (bfd_vma addr, struct disassemble_info *info);
    315 
    316   /* Function called to determine if there is a symbol at the given ADDR.
    317      If there is, the function returns 1, otherwise it returns 0.
    318      This is used by ports which support an overlay manager where
    319      the overlay number is held in the top part of an address.  In
    320      some circumstances we want to include the overlay number in the
    321      address, (normally because there is a symbol associated with
    322      that address), but sometimes we want to mask out the overlay bits.  */
    323   int (* symbol_at_address_func)
    324     (bfd_vma addr, struct disassemble_info * info);
    325 
    326   /* These are for buffer_read_memory.  */
    327   bfd_byte *buffer;
    328   bfd_vma buffer_vma;
    329   int buffer_length;
    330 
    331   /* This variable may be set by the instruction decoder.  It suggests
    332       the number of bytes objdump should display on a single line.  If
    333       the instruction decoder sets this, it should always set it to
    334       the same value in order to get reasonable looking output.  */
    335   int bytes_per_line;
    336 
    337   /* the next two variables control the way objdump displays the raw data */
    338   /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
    339   /* output will look like this:
    340      00:   00000000 00000000
    341      with the chunks displayed according to "display_endian". */
    342   int bytes_per_chunk;
    343   enum bfd_endian display_endian;
    344 
    345   /* Results from instruction decoders.  Not all decoders yet support
    346      this information.  This info is set each time an instruction is
    347      decoded, and is only valid for the last such instruction.
    348 
    349      To determine whether this decoder supports this information, set
    350      insn_info_valid to 0, decode an instruction, then check it.  */
    351 
    352   char insn_info_valid;		/* Branch info has been set. */
    353   char branch_delay_insns;	/* How many sequential insn's will run before
    354 				   a branch takes effect.  (0 = normal) */
    355   char data_size;		/* Size of data reference in insn, in bytes */
    356   enum dis_insn_type insn_type;	/* Type of instruction */
    357   bfd_vma target;		/* Target address of branch or dref, if known;
    358 				   zero if unknown.  */
    359   bfd_vma target2;		/* Second target address for dref2 */
    360 
    361   /* Command line options specific to the target disassembler.  */
    362   char * disassembler_options;
    363 
    364 } disassemble_info;
    365 
    366 
    367 /* Standard disassemblers.  Disassemble one instruction at the given
    369    target address.  Return number of bytes processed.  */
    370 typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
    371 
    372 int print_insn_tci(bfd_vma, disassemble_info*);
    373 int print_insn_big_mips         (bfd_vma, disassemble_info*);
    374 int print_insn_little_mips      (bfd_vma, disassemble_info*);
    375 int print_insn_i386             (bfd_vma, disassemble_info*);
    376 int print_insn_m68k             (bfd_vma, disassemble_info*);
    377 int print_insn_z8001            (bfd_vma, disassemble_info*);
    378 int print_insn_z8002            (bfd_vma, disassemble_info*);
    379 int print_insn_h8300            (bfd_vma, disassemble_info*);
    380 int print_insn_h8300h           (bfd_vma, disassemble_info*);
    381 int print_insn_h8300s           (bfd_vma, disassemble_info*);
    382 int print_insn_h8500            (bfd_vma, disassemble_info*);
    383 int print_insn_alpha            (bfd_vma, disassemble_info*);
    384 disassembler_ftype arc_get_disassembler (int, int);
    385 int print_insn_arm              (bfd_vma, disassemble_info*);
    386 int print_insn_sparc            (bfd_vma, disassemble_info*);
    387 int print_insn_big_a29k         (bfd_vma, disassemble_info*);
    388 int print_insn_little_a29k      (bfd_vma, disassemble_info*);
    389 int print_insn_i960             (bfd_vma, disassemble_info*);
    390 int print_insn_sh               (bfd_vma, disassemble_info*);
    391 int print_insn_shl              (bfd_vma, disassemble_info*);
    392 int print_insn_hppa             (bfd_vma, disassemble_info*);
    393 int print_insn_m32r             (bfd_vma, disassemble_info*);
    394 int print_insn_m88k             (bfd_vma, disassemble_info*);
    395 int print_insn_mn10200          (bfd_vma, disassemble_info*);
    396 int print_insn_mn10300          (bfd_vma, disassemble_info*);
    397 int print_insn_moxie            (bfd_vma, disassemble_info*);
    398 int print_insn_ns32k            (bfd_vma, disassemble_info*);
    399 int print_insn_big_powerpc      (bfd_vma, disassemble_info*);
    400 int print_insn_little_powerpc   (bfd_vma, disassemble_info*);
    401 int print_insn_rs6000           (bfd_vma, disassemble_info*);
    402 int print_insn_w65              (bfd_vma, disassemble_info*);
    403 int print_insn_d10v             (bfd_vma, disassemble_info*);
    404 int print_insn_v850             (bfd_vma, disassemble_info*);
    405 int print_insn_tic30            (bfd_vma, disassemble_info*);
    406 int print_insn_ppc              (bfd_vma, disassemble_info*);
    407 int print_insn_s390             (bfd_vma, disassemble_info*);
    408 int print_insn_crisv32          (bfd_vma, disassemble_info*);
    409 int print_insn_crisv10          (bfd_vma, disassemble_info*);
    410 int print_insn_microblaze       (bfd_vma, disassemble_info*);
    411 int print_insn_ia64             (bfd_vma, disassemble_info*);
    412 int print_insn_lm32             (bfd_vma, disassemble_info*);
    413 
    414 #if 0
    415 /* Fetch the disassembler for a given BFD, if that support is available.  */
    416 disassembler_ftype disassembler(bfd *);
    417 #endif
    418 
    419 
    420 /* This block of definitions is for particular callers who read instructions
    422    into a buffer before calling the instruction decoder.  */
    423 
    424 /* Here is a function which callers may wish to use for read_memory_func.
    425    It gets bytes from a buffer.  */
    426 int buffer_read_memory(bfd_vma, bfd_byte *, int, struct disassemble_info *);
    427 
    428 /* This function goes with buffer_read_memory.
    429    It prints a message using info->fprintf_func and info->stream.  */
    430 void perror_memory(int, bfd_vma, struct disassemble_info *);
    431 
    432 
    433 /* Just print the address in hex.  This is included for completeness even
    434    though both GDB and objdump provide their own (to print symbolic
    435    addresses).  */
    436 void generic_print_address(bfd_vma, struct disassemble_info *);
    437 
    438 /* Always true.  */
    439 int generic_symbol_at_address(bfd_vma, struct disassemble_info *);
    440 
    441 /* Macro to initialize a disassemble_info struct.  This should be called
    442    by all applications creating such a struct.  */
    443 #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
    444   (INFO).flavour = bfd_target_unknown_flavour, \
    445   (INFO).arch = bfd_arch_unknown, \
    446   (INFO).mach = 0, \
    447   (INFO).endian = BFD_ENDIAN_UNKNOWN, \
    448   INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
    449 
    450 /* Call this macro to initialize only the internal variables for the
    451    disassembler.  Architecture dependent things such as byte order, or machine
    452    variant are not touched by this macro.  This makes things much easier for
    453    GDB which must initialize these things separately.  */
    454 
    455 #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
    456   (INFO).fprintf_func = (FPRINTF_FUNC), \
    457   (INFO).stream = (STREAM), \
    458   (INFO).symbols = NULL, \
    459   (INFO).num_symbols = 0, \
    460   (INFO).private_data = NULL, \
    461   (INFO).buffer = NULL, \
    462   (INFO).buffer_vma = 0, \
    463   (INFO).buffer_length = 0, \
    464   (INFO).read_memory_func = buffer_read_memory, \
    465   (INFO).memory_error_func = perror_memory, \
    466   (INFO).print_address_func = generic_print_address, \
    467   (INFO).symbol_at_address_func = generic_symbol_at_address, \
    468   (INFO).flags = 0, \
    469   (INFO).bytes_per_line = 0, \
    470   (INFO).bytes_per_chunk = 0, \
    471   (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
    472   (INFO).disassembler_options = NULL, \
    473   (INFO).insn_info_valid = 0
    474 
    475 #define _(x) x
    476 #define ATTRIBUTE_UNUSED __attribute__((unused))
    477 
    478 /* from libbfd */
    479 
    480 bfd_vma bfd_getl64 (const bfd_byte *addr);
    481 bfd_vma bfd_getl32 (const bfd_byte *addr);
    482 bfd_vma bfd_getb32 (const bfd_byte *addr);
    483 bfd_vma bfd_getl16 (const bfd_byte *addr);
    484 bfd_vma bfd_getb16 (const bfd_byte *addr);
    485 typedef bool bfd_boolean;
    486 
    487 #endif /* ! defined (DIS_ASM_H) */
    488