Home | History | Annotate | Download | only in qemu
      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 
    361 /* Standard disassemblers.  Disassemble one instruction at the given
    363    target address.  Return number of bytes processed.  */
    364 typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
    365 
    366 int print_insn_big_mips         (bfd_vma, disassemble_info*);
    367 int print_insn_little_mips      (bfd_vma, disassemble_info*);
    368 int print_insn_i386             (bfd_vma, disassemble_info*);
    369 int print_insn_m68k             (bfd_vma, disassemble_info*);
    370 int print_insn_z8001            (bfd_vma, disassemble_info*);
    371 int print_insn_z8002            (bfd_vma, disassemble_info*);
    372 int print_insn_h8300            (bfd_vma, disassemble_info*);
    373 int print_insn_h8300h           (bfd_vma, disassemble_info*);
    374 int print_insn_h8300s           (bfd_vma, disassemble_info*);
    375 int print_insn_h8500            (bfd_vma, disassemble_info*);
    376 int print_insn_alpha            (bfd_vma, disassemble_info*);
    377 disassembler_ftype arc_get_disassembler (int, int);
    378 int print_insn_arm              (bfd_vma, disassemble_info*);
    379 int print_insn_sparc            (bfd_vma, disassemble_info*);
    380 int print_insn_big_a29k         (bfd_vma, disassemble_info*);
    381 int print_insn_little_a29k      (bfd_vma, disassemble_info*);
    382 int print_insn_i960             (bfd_vma, disassemble_info*);
    383 int print_insn_sh               (bfd_vma, disassemble_info*);
    384 int print_insn_shl              (bfd_vma, disassemble_info*);
    385 int print_insn_hppa             (bfd_vma, disassemble_info*);
    386 int print_insn_m32r             (bfd_vma, disassemble_info*);
    387 int print_insn_m88k             (bfd_vma, disassemble_info*);
    388 int print_insn_mn10200          (bfd_vma, disassemble_info*);
    389 int print_insn_mn10300          (bfd_vma, disassemble_info*);
    390 int print_insn_ns32k            (bfd_vma, disassemble_info*);
    391 int print_insn_big_powerpc      (bfd_vma, disassemble_info*);
    392 int print_insn_little_powerpc   (bfd_vma, disassemble_info*);
    393 int print_insn_rs6000           (bfd_vma, disassemble_info*);
    394 int print_insn_w65              (bfd_vma, disassemble_info*);
    395 int print_insn_d10v             (bfd_vma, disassemble_info*);
    396 int print_insn_v850             (bfd_vma, disassemble_info*);
    397 int print_insn_tic30            (bfd_vma, disassemble_info*);
    398 int print_insn_ppc              (bfd_vma, disassemble_info*);
    399 int print_insn_s390             (bfd_vma, disassemble_info*);
    400 int print_insn_crisv32          (bfd_vma, disassemble_info*);
    401 int print_insn_crisv10          (bfd_vma, disassemble_info*);
    402 int print_insn_microblaze       (bfd_vma, disassemble_info*);
    403 int print_insn_ia64             (bfd_vma, disassemble_info*);
    404 
    405 #if 0
    406 /* Fetch the disassembler for a given BFD, if that support is available.  */
    407 disassembler_ftype disassembler(bfd *);
    408 #endif
    409 
    410 
    411 /* This block of definitions is for particular callers who read instructions
    413    into a buffer before calling the instruction decoder.  */
    414 
    415 /* Here is a function which callers may wish to use for read_memory_func.
    416    It gets bytes from a buffer.  */
    417 int buffer_read_memory(bfd_vma, bfd_byte *, int, struct disassemble_info *);
    418 
    419 /* This function goes with buffer_read_memory.
    420    It prints a message using info->fprintf_func and info->stream.  */
    421 void perror_memory(int, bfd_vma, struct disassemble_info *);
    422 
    423 
    424 /* Just print the address in hex.  This is included for completeness even
    425    though both GDB and objdump provide their own (to print symbolic
    426    addresses).  */
    427 void generic_print_address(bfd_vma, struct disassemble_info *);
    428 
    429 /* Always true.  */
    430 int generic_symbol_at_address(bfd_vma, struct disassemble_info *);
    431 
    432 /* Macro to initialize a disassemble_info struct.  This should be called
    433    by all applications creating such a struct.  */
    434 #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
    435   (INFO).flavour = bfd_target_unknown_flavour, \
    436   (INFO).arch = bfd_arch_unknown, \
    437   (INFO).mach = 0, \
    438   (INFO).endian = BFD_ENDIAN_UNKNOWN, \
    439   INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC)
    440 
    441 /* Call this macro to initialize only the internal variables for the
    442    disassembler.  Architecture dependent things such as byte order, or machine
    443    variant are not touched by this macro.  This makes things much easier for
    444    GDB which must initialize these things separately.  */
    445 
    446 #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
    447   (INFO).fprintf_func = (FPRINTF_FUNC), \
    448   (INFO).stream = (STREAM), \
    449   (INFO).symbols = NULL, \
    450   (INFO).num_symbols = 0, \
    451   (INFO).private_data = NULL, \
    452   (INFO).buffer = NULL, \
    453   (INFO).buffer_vma = 0, \
    454   (INFO).buffer_length = 0, \
    455   (INFO).read_memory_func = buffer_read_memory, \
    456   (INFO).memory_error_func = perror_memory, \
    457   (INFO).print_address_func = generic_print_address, \
    458   (INFO).symbol_at_address_func = generic_symbol_at_address, \
    459   (INFO).flags = 0, \
    460   (INFO).bytes_per_line = 0, \
    461   (INFO).bytes_per_chunk = 0, \
    462   (INFO).display_endian = BFD_ENDIAN_UNKNOWN, \
    463   (INFO).disassembler_options = NULL, \
    464   (INFO).insn_info_valid = 0
    465 
    466 #define _(x) x
    467 #define ATTRIBUTE_UNUSED __attribute__((unused))
    468 
    469 /* from libbfd */
    470 
    471 bfd_vma bfd_getl64 (const bfd_byte *addr);
    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 bool bfd_boolean;
    477 
    478 #endif /* ! defined (DIS_ASM_H) */
    479