nkeynes@362 | 1 | /* Interface between the opcode library and its callers.
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nkeynes@362 | 2 |
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nkeynes@362 | 3 | Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005
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nkeynes@362 | 4 | Free Software Foundation, Inc.
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nkeynes@362 | 5 |
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nkeynes@362 | 6 | This program is free software; you can redistribute it and/or modify
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nkeynes@362 | 7 | it under the terms of the GNU General Public License as published by
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nkeynes@362 | 8 | the Free Software Foundation; either version 2, or (at your option)
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nkeynes@362 | 9 | any later version.
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nkeynes@362 | 10 |
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nkeynes@362 | 11 | This program is distributed in the hope that it will be useful,
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nkeynes@362 | 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@362 | 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@362 | 14 | GNU General Public License for more details.
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nkeynes@362 | 15 |
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nkeynes@362 | 16 | You should have received a copy of the GNU General Public License
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nkeynes@362 | 17 | along with this program; if not, write to the Free Software
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nkeynes@362 | 18 | Foundation, Inc., 59 Temple Place - Suite 330,
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nkeynes@362 | 19 | Boston, MA 02111-1307, USA.
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nkeynes@362 | 20 |
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nkeynes@362 | 21 | Written by Cygnus Support, 1993.
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nkeynes@362 | 22 |
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nkeynes@362 | 23 | The opcode library (libopcodes.a) provides instruction decoders for
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nkeynes@362 | 24 | a large variety of instruction sets, callable with an identical
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nkeynes@362 | 25 | interface, for making instruction-processing programs more independent
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nkeynes@362 | 26 | of the instruction set being processed. */
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nkeynes@362 | 27 |
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nkeynes@362 | 28 | #ifndef DIS_ASM_H
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nkeynes@362 | 29 | #define DIS_ASM_H
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nkeynes@362 | 30 |
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nkeynes@362 | 31 | #ifdef __cplusplus
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nkeynes@362 | 32 | extern "C" {
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nkeynes@362 | 33 | #endif
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nkeynes@362 | 34 |
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nkeynes@362 | 35 | #include <stdio.h>
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nkeynes@755 | 36 | #include "x86dasm/bfd.h"
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nkeynes@362 | 37 |
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nkeynes@362 | 38 | typedef int (*fprintf_ftype) (void *, const char*, ...);
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nkeynes@362 | 39 |
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nkeynes@362 | 40 | enum dis_insn_type {
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nkeynes@362 | 41 | dis_noninsn, /* Not a valid instruction */
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nkeynes@362 | 42 | dis_nonbranch, /* Not a branch instruction */
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nkeynes@362 | 43 | dis_branch, /* Unconditional branch */
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nkeynes@362 | 44 | dis_condbranch, /* Conditional branch */
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nkeynes@362 | 45 | dis_jsr, /* Jump to subroutine */
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nkeynes@362 | 46 | dis_condjsr, /* Conditional jump to subroutine */
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nkeynes@362 | 47 | dis_dref, /* Data reference instruction */
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nkeynes@362 | 48 | dis_dref2 /* Two data references in instruction */
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nkeynes@362 | 49 | };
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nkeynes@362 | 50 |
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nkeynes@362 | 51 | /* This struct is passed into the instruction decoding routine,
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nkeynes@362 | 52 | and is passed back out into each callback. The various fields are used
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nkeynes@362 | 53 | for conveying information from your main routine into your callbacks,
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nkeynes@362 | 54 | for passing information into the instruction decoders (such as the
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nkeynes@362 | 55 | addresses of the callback functions), or for passing information
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nkeynes@362 | 56 | back from the instruction decoders to their callers.
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nkeynes@362 | 57 |
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nkeynes@362 | 58 | It must be initialized before it is first passed; this can be done
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nkeynes@362 | 59 | by hand, or using one of the initialization macros below. */
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nkeynes@362 | 60 |
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nkeynes@362 | 61 | typedef struct disassemble_info {
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nkeynes@362 | 62 | fprintf_ftype fprintf_func;
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nkeynes@362 | 63 | void *stream;
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nkeynes@362 | 64 | void *application_data;
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nkeynes@362 | 65 |
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nkeynes@362 | 66 | /* Target description. We could replace this with a pointer to the bfd,
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nkeynes@362 | 67 | but that would require one. There currently isn't any such requirement
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nkeynes@362 | 68 | so to avoid introducing one we record these explicitly. */
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nkeynes@362 | 69 | /* The bfd_flavour. This can be bfd_target_unknown_flavour. */
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nkeynes@362 | 70 | enum bfd_flavour flavour;
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nkeynes@362 | 71 | /* The bfd_arch value. */
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nkeynes@362 | 72 | enum bfd_architecture arch;
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nkeynes@362 | 73 | /* The bfd_mach value. */
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nkeynes@362 | 74 | unsigned long mach;
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nkeynes@362 | 75 | /* Endianness (for bi-endian cpus). Mono-endian cpus can ignore this. */
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nkeynes@362 | 76 | enum bfd_endian endian;
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nkeynes@362 | 77 | /* An arch/mach-specific bitmask of selected instruction subsets, mainly
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nkeynes@362 | 78 | for processors with run-time-switchable instruction sets. The default,
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nkeynes@362 | 79 | zero, means that there is no constraint. CGEN-based opcodes ports
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nkeynes@362 | 80 | may use ISA_foo masks. */
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nkeynes@362 | 81 | unsigned long insn_sets;
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nkeynes@362 | 82 |
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nkeynes@362 | 83 | /* Some targets need information about the current section to accurately
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nkeynes@362 | 84 | display insns. If this is NULL, the target disassembler function
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nkeynes@362 | 85 | will have to make its best guess. */
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nkeynes@362 | 86 | asection *section;
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nkeynes@362 | 87 |
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nkeynes@362 | 88 | /* An array of pointers to symbols either at the location being disassembled
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nkeynes@362 | 89 | or at the start of the function being disassembled. The array is sorted
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nkeynes@362 | 90 | so that the first symbol is intended to be the one used. The others are
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nkeynes@362 | 91 | present for any misc. purposes. This is not set reliably, but if it is
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nkeynes@362 | 92 | not NULL, it is correct. */
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nkeynes@362 | 93 | asymbol **symbols;
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nkeynes@362 | 94 | /* Number of symbols in array. */
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nkeynes@362 | 95 | int num_symbols;
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nkeynes@362 | 96 |
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nkeynes@362 | 97 | /* For use by the disassembler.
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nkeynes@362 | 98 | The top 16 bits are reserved for public use (and are documented here).
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nkeynes@362 | 99 | The bottom 16 bits are for the internal use of the disassembler. */
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nkeynes@362 | 100 | unsigned long flags;
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nkeynes@362 | 101 | #define INSN_HAS_RELOC 0x80000000
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nkeynes@362 | 102 | void *private_data;
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nkeynes@362 | 103 |
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nkeynes@362 | 104 | /* Function used to get bytes to disassemble. MEMADDR is the
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nkeynes@362 | 105 | address of the stuff to be disassembled, MYADDR is the address to
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nkeynes@362 | 106 | put the bytes in, and LENGTH is the number of bytes to read.
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nkeynes@362 | 107 | INFO is a pointer to this struct.
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nkeynes@362 | 108 | Returns an errno value or 0 for success. */
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nkeynes@362 | 109 | int (*read_memory_func)
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nkeynes@362 | 110 | (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
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nkeynes@362 | 111 | struct disassemble_info *info);
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nkeynes@362 | 112 |
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nkeynes@362 | 113 | /* Function which should be called if we get an error that we can't
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nkeynes@362 | 114 | recover from. STATUS is the errno value from read_memory_func and
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nkeynes@362 | 115 | MEMADDR is the address that we were trying to read. INFO is a
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nkeynes@362 | 116 | pointer to this struct. */
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nkeynes@362 | 117 | void (*memory_error_func)
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nkeynes@362 | 118 | (int status, bfd_vma memaddr, struct disassemble_info *info);
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nkeynes@362 | 119 |
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nkeynes@362 | 120 | /* Function called to print ADDR. */
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nkeynes@362 | 121 | void (*print_address_func)
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nkeynes@362 | 122 | (bfd_vma addr, struct disassemble_info *info);
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nkeynes@362 | 123 |
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nkeynes@362 | 124 | /* Function called to determine if there is a symbol at the given ADDR.
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nkeynes@362 | 125 | If there is, the function returns 1, otherwise it returns 0.
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nkeynes@362 | 126 | This is used by ports which support an overlay manager where
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nkeynes@362 | 127 | the overlay number is held in the top part of an address. In
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nkeynes@362 | 128 | some circumstances we want to include the overlay number in the
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nkeynes@362 | 129 | address, (normally because there is a symbol associated with
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nkeynes@362 | 130 | that address), but sometimes we want to mask out the overlay bits. */
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nkeynes@362 | 131 | int (* symbol_at_address_func)
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nkeynes@362 | 132 | (bfd_vma addr, struct disassemble_info * info);
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nkeynes@362 | 133 |
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nkeynes@362 | 134 | /* Function called to check if a SYMBOL is can be displayed to the user.
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nkeynes@362 | 135 | This is used by some ports that want to hide special symbols when
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nkeynes@362 | 136 | displaying debugging outout. */
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nkeynes@362 | 137 | bfd_boolean (* symbol_is_valid)
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nkeynes@362 | 138 | (asymbol *, struct disassemble_info * info);
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nkeynes@362 | 139 |
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nkeynes@362 | 140 | /* These are for buffer_read_memory. */
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nkeynes@362 | 141 | bfd_byte *buffer;
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nkeynes@362 | 142 | bfd_vma buffer_vma;
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nkeynes@362 | 143 | unsigned int buffer_length;
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nkeynes@362 | 144 |
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nkeynes@362 | 145 | /* This variable may be set by the instruction decoder. It suggests
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nkeynes@362 | 146 | the number of bytes objdump should display on a single line. If
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nkeynes@362 | 147 | the instruction decoder sets this, it should always set it to
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nkeynes@362 | 148 | the same value in order to get reasonable looking output. */
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nkeynes@362 | 149 | int bytes_per_line;
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nkeynes@362 | 150 |
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nkeynes@362 | 151 | /* The next two variables control the way objdump displays the raw data. */
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nkeynes@362 | 152 | /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
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nkeynes@362 | 153 | /* output will look like this:
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nkeynes@362 | 154 | 00: 00000000 00000000
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nkeynes@362 | 155 | with the chunks displayed according to "display_endian". */
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nkeynes@362 | 156 | int bytes_per_chunk;
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nkeynes@362 | 157 | enum bfd_endian display_endian;
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nkeynes@362 | 158 |
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nkeynes@362 | 159 | /* Number of octets per incremented target address
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nkeynes@362 | 160 | Normally one, but some DSPs have byte sizes of 16 or 32 bits. */
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nkeynes@362 | 161 | unsigned int octets_per_byte;
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nkeynes@362 | 162 |
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nkeynes@362 | 163 | /* The number of zeroes we want to see at the end of a section before we
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nkeynes@362 | 164 | start skipping them. */
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nkeynes@362 | 165 | unsigned int skip_zeroes;
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nkeynes@362 | 166 |
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nkeynes@362 | 167 | /* The number of zeroes to skip at the end of a section. If the number
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nkeynes@362 | 168 | of zeroes at the end is between SKIP_ZEROES_AT_END and SKIP_ZEROES,
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nkeynes@362 | 169 | they will be disassembled. If there are fewer than
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nkeynes@362 | 170 | SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
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nkeynes@362 | 171 | attempt to avoid disassembling zeroes inserted by section
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nkeynes@362 | 172 | alignment. */
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nkeynes@362 | 173 | unsigned int skip_zeroes_at_end;
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nkeynes@362 | 174 |
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nkeynes@362 | 175 | /* Results from instruction decoders. Not all decoders yet support
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nkeynes@362 | 176 | this information. This info is set each time an instruction is
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nkeynes@362 | 177 | decoded, and is only valid for the last such instruction.
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nkeynes@362 | 178 |
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nkeynes@362 | 179 | To determine whether this decoder supports this information, set
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nkeynes@362 | 180 | insn_info_valid to 0, decode an instruction, then check it. */
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nkeynes@362 | 181 |
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nkeynes@362 | 182 | char insn_info_valid; /* Branch info has been set. */
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nkeynes@362 | 183 | char branch_delay_insns; /* How many sequential insn's will run before
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nkeynes@362 | 184 | a branch takes effect. (0 = normal) */
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nkeynes@362 | 185 | char data_size; /* Size of data reference in insn, in bytes */
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nkeynes@362 | 186 | enum dis_insn_type insn_type; /* Type of instruction */
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nkeynes@362 | 187 | bfd_vma target; /* Target address of branch or dref, if known;
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nkeynes@362 | 188 | zero if unknown. */
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nkeynes@362 | 189 | bfd_vma target2; /* Second target address for dref2 */
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nkeynes@362 | 190 |
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nkeynes@362 | 191 | /* Command line options specific to the target disassembler. */
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nkeynes@362 | 192 | char * disassembler_options;
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nkeynes@362 | 193 |
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nkeynes@362 | 194 | } disassemble_info;
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nkeynes@362 | 195 |
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nkeynes@362 | 196 |
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nkeynes@362 | 197 | /* Standard disassemblers. Disassemble one instruction at the given
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nkeynes@362 | 198 | target address. Return number of octets processed. */
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nkeynes@362 | 199 | typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
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nkeynes@362 | 200 |
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nkeynes@362 | 201 | extern int print_insn_big_mips (bfd_vma, disassemble_info *);
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nkeynes@362 | 202 | extern int print_insn_little_mips (bfd_vma, disassemble_info *);
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nkeynes@362 | 203 | extern int print_insn_i386 (bfd_vma, disassemble_info *);
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nkeynes@362 | 204 | extern int print_insn_i386_att (bfd_vma, disassemble_info *);
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nkeynes@362 | 205 | extern int print_insn_i386_intel (bfd_vma, disassemble_info *);
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nkeynes@362 | 206 | extern int print_insn_ia64 (bfd_vma, disassemble_info *);
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nkeynes@362 | 207 | extern int print_insn_i370 (bfd_vma, disassemble_info *);
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nkeynes@362 | 208 | extern int print_insn_m68hc11 (bfd_vma, disassemble_info *);
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nkeynes@362 | 209 | extern int print_insn_m68hc12 (bfd_vma, disassemble_info *);
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nkeynes@362 | 210 | extern int print_insn_m68k (bfd_vma, disassemble_info *);
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nkeynes@362 | 211 | extern int print_insn_z8001 (bfd_vma, disassemble_info *);
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nkeynes@362 | 212 | extern int print_insn_z8002 (bfd_vma, disassemble_info *);
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nkeynes@362 | 213 | extern int print_insn_h8300 (bfd_vma, disassemble_info *);
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nkeynes@362 | 214 | extern int print_insn_h8300h (bfd_vma, disassemble_info *);
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nkeynes@362 | 215 | extern int print_insn_h8300s (bfd_vma, disassemble_info *);
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nkeynes@362 | 216 | extern int print_insn_h8500 (bfd_vma, disassemble_info *);
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nkeynes@362 | 217 | extern int print_insn_alpha (bfd_vma, disassemble_info *);
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nkeynes@362 | 218 | extern int print_insn_big_arm (bfd_vma, disassemble_info *);
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nkeynes@362 | 219 | extern int print_insn_little_arm (bfd_vma, disassemble_info *);
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nkeynes@362 | 220 | extern int print_insn_sparc (bfd_vma, disassemble_info *);
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nkeynes@362 | 221 | extern int print_insn_big_a29k (bfd_vma, disassemble_info *);
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nkeynes@362 | 222 | extern int print_insn_little_a29k (bfd_vma, disassemble_info *);
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nkeynes@362 | 223 | extern int print_insn_avr (bfd_vma, disassemble_info *);
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nkeynes@362 | 224 | extern int print_insn_d10v (bfd_vma, disassemble_info *);
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nkeynes@362 | 225 | extern int print_insn_d30v (bfd_vma, disassemble_info *);
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nkeynes@362 | 226 | extern int print_insn_dlx (bfd_vma, disassemble_info *);
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nkeynes@362 | 227 | extern int print_insn_fr30 (bfd_vma, disassemble_info *);
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nkeynes@362 | 228 | extern int print_insn_hppa (bfd_vma, disassemble_info *);
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nkeynes@362 | 229 | extern int print_insn_i860 (bfd_vma, disassemble_info *);
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nkeynes@362 | 230 | extern int print_insn_i960 (bfd_vma, disassemble_info *);
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nkeynes@362 | 231 | extern int print_insn_ip2k (bfd_vma, disassemble_info *);
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nkeynes@362 | 232 | extern int print_insn_m32r (bfd_vma, disassemble_info *);
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nkeynes@362 | 233 | extern int print_insn_m88k (bfd_vma, disassemble_info *);
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nkeynes@362 | 234 | extern int print_insn_maxq_little (bfd_vma, disassemble_info *);
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nkeynes@362 | 235 | extern int print_insn_maxq_big (bfd_vma, disassemble_info *);
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nkeynes@362 | 236 | extern int print_insn_mcore (bfd_vma, disassemble_info *);
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nkeynes@362 | 237 | extern int print_insn_mmix (bfd_vma, disassemble_info *);
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nkeynes@362 | 238 | extern int print_insn_mn10200 (bfd_vma, disassemble_info *);
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nkeynes@362 | 239 | extern int print_insn_mn10300 (bfd_vma, disassemble_info *);
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nkeynes@362 | 240 | extern int print_insn_msp430 (bfd_vma, disassemble_info *);
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nkeynes@362 | 241 | extern int print_insn_ns32k (bfd_vma, disassemble_info *);
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nkeynes@362 | 242 | extern int print_insn_crx (bfd_vma, disassemble_info *);
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nkeynes@362 | 243 | extern int print_insn_openrisc (bfd_vma, disassemble_info *);
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nkeynes@362 | 244 | extern int print_insn_big_or32 (bfd_vma, disassemble_info *);
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nkeynes@362 | 245 | extern int print_insn_little_or32 (bfd_vma, disassemble_info *);
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nkeynes@362 | 246 | extern int print_insn_pdp11 (bfd_vma, disassemble_info *);
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nkeynes@362 | 247 | extern int print_insn_pj (bfd_vma, disassemble_info *);
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nkeynes@362 | 248 | extern int print_insn_big_powerpc (bfd_vma, disassemble_info *);
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nkeynes@362 | 249 | extern int print_insn_little_powerpc (bfd_vma, disassemble_info *);
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nkeynes@362 | 250 | extern int print_insn_rs6000 (bfd_vma, disassemble_info *);
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nkeynes@362 | 251 | extern int print_insn_s390 (bfd_vma, disassemble_info *);
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nkeynes@362 | 252 | extern int print_insn_sh (bfd_vma, disassemble_info *);
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nkeynes@362 | 253 | extern int print_insn_tic30 (bfd_vma, disassemble_info *);
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nkeynes@362 | 254 | extern int print_insn_tic4x (bfd_vma, disassemble_info *);
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nkeynes@362 | 255 | extern int print_insn_tic54x (bfd_vma, disassemble_info *);
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nkeynes@362 | 256 | extern int print_insn_tic80 (bfd_vma, disassemble_info *);
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nkeynes@362 | 257 | extern int print_insn_v850 (bfd_vma, disassemble_info *);
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nkeynes@362 | 258 | extern int print_insn_vax (bfd_vma, disassemble_info *);
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nkeynes@362 | 259 | extern int print_insn_w65 (bfd_vma, disassemble_info *);
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nkeynes@362 | 260 | extern int print_insn_xstormy16 (bfd_vma, disassemble_info *);
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nkeynes@362 | 261 | extern int print_insn_xtensa (bfd_vma, disassemble_info *);
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nkeynes@362 | 262 | extern int print_insn_sh64 (bfd_vma, disassemble_info *);
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nkeynes@362 | 263 | extern int print_insn_sh64x_media (bfd_vma, disassemble_info *);
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nkeynes@362 | 264 | extern int print_insn_frv (bfd_vma, disassemble_info *);
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nkeynes@362 | 265 | extern int print_insn_iq2000 (bfd_vma, disassemble_info *);
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nkeynes@362 | 266 |
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nkeynes@362 | 267 | extern disassembler_ftype arc_get_disassembler (void *);
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nkeynes@362 | 268 | extern disassembler_ftype cris_get_disassembler (bfd *);
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nkeynes@362 | 269 |
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nkeynes@362 | 270 | extern void print_mips_disassembler_options (FILE *);
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nkeynes@362 | 271 | extern void print_ppc_disassembler_options (FILE *);
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nkeynes@362 | 272 | extern void print_arm_disassembler_options (FILE *);
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nkeynes@362 | 273 | extern void parse_arm_disassembler_option (char *);
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nkeynes@362 | 274 | extern int get_arm_regname_num_options (void);
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nkeynes@362 | 275 | extern int set_arm_regname_option (int);
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nkeynes@362 | 276 | extern int get_arm_regnames (int, const char **, const char **, const char ***);
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nkeynes@362 | 277 | extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
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nkeynes@362 | 278 |
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nkeynes@362 | 279 | /* Fetch the disassembler for a given BFD, if that support is available. */
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nkeynes@362 | 280 | extern disassembler_ftype disassembler (bfd *);
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nkeynes@362 | 281 |
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nkeynes@362 | 282 | /* Amend the disassemble_info structure as necessary for the target architecture.
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nkeynes@362 | 283 | Should only be called after initialising the info->arch field. */
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nkeynes@362 | 284 | extern void disassemble_init_for_target (struct disassemble_info * info);
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nkeynes@362 | 285 |
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nkeynes@362 | 286 | /* Document any target specific options available from the disassembler. */
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nkeynes@362 | 287 | extern void disassembler_usage (FILE *);
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nkeynes@362 | 288 |
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nkeynes@362 | 289 |
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nkeynes@362 | 290 | /* This block of definitions is for particular callers who read instructions
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nkeynes@362 | 291 | into a buffer before calling the instruction decoder. */
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nkeynes@362 | 292 |
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nkeynes@362 | 293 | /* Here is a function which callers may wish to use for read_memory_func.
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nkeynes@362 | 294 | It gets bytes from a buffer. */
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nkeynes@362 | 295 | extern int buffer_read_memory
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nkeynes@362 | 296 | (bfd_vma, bfd_byte *, unsigned int, struct disassemble_info *);
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nkeynes@362 | 297 |
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nkeynes@362 | 298 | /* This function goes with buffer_read_memory.
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nkeynes@362 | 299 | It prints a message using info->fprintf_func and info->stream. */
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nkeynes@362 | 300 | extern void perror_memory (int, bfd_vma, struct disassemble_info *);
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nkeynes@362 | 301 |
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nkeynes@362 | 302 |
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nkeynes@362 | 303 | /* Just print the address in hex. This is included for completeness even
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nkeynes@362 | 304 | though both GDB and objdump provide their own (to print symbolic
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nkeynes@362 | 305 | addresses). */
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nkeynes@362 | 306 | extern void generic_print_address
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nkeynes@362 | 307 | (bfd_vma, struct disassemble_info *);
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nkeynes@362 | 308 |
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nkeynes@362 | 309 | /* Always true. */
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nkeynes@362 | 310 | extern int generic_symbol_at_address
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nkeynes@362 | 311 | (bfd_vma, struct disassemble_info *);
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nkeynes@362 | 312 |
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nkeynes@362 | 313 | /* Also always true. */
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nkeynes@362 | 314 | extern bfd_boolean generic_symbol_is_valid
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nkeynes@362 | 315 | (asymbol *, struct disassemble_info *);
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nkeynes@362 | 316 |
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nkeynes@362 | 317 | /* Method to initialize a disassemble_info struct. This should be
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nkeynes@362 | 318 | called by all applications creating such a struct. */
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nkeynes@362 | 319 | extern void init_disassemble_info (struct disassemble_info *info, void *stream,
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nkeynes@362 | 320 | fprintf_ftype fprintf_func);
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nkeynes@362 | 321 |
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nkeynes@362 | 322 | /* For compatibility with existing code. */
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nkeynes@362 | 323 | #define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
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nkeynes@362 | 324 | init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
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nkeynes@362 | 325 | #define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
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nkeynes@362 | 326 | init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
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nkeynes@362 | 327 |
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nkeynes@362 | 328 |
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nkeynes@362 | 329 | #ifdef __cplusplus
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nkeynes@362 | 330 | }
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nkeynes@362 | 331 | #endif
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nkeynes@362 | 332 |
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nkeynes@362 | 333 | #endif /* ! defined (DIS_ASM_H) */
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