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lxdream.org :: lxdream/src/xlat/disasm/dis-asm.h
lxdream 0.9.1
released Jun 29
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filename src/xlat/disasm/dis-asm.h
changeset 1265:7c6c5d26fd2e
prev1264:74ad81710528
author nkeynes
date Tue Mar 06 12:42:33 2012 +1000 (8 years ago)
permissions -rw-r--r--
last change Merge ARM disassembler from binutils 2.22
file annotate diff log raw
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/* Interface between the opcode library and its callers.
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   Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009, 2010,
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   2011  Free Software Foundation, Inc.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3, or (at your option)
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   any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor,
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   Boston, MA 02110-1301, USA.
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   Written by Cygnus Support, 1993.
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   The opcode library (libopcodes.a) provides instruction decoders for
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   a large variety of instruction sets, callable with an identical
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   interface, for making instruction-processing programs more independent
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   of the instruction set being processed.  */
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#ifndef DIS_ASM_H
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#define DIS_ASM_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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#include "xlat/disasm/bfd.h"
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  typedef int (*fprintf_ftype) (void *, const char*, ...) /*ATTRIBUTE_FPTR_PRINTF_2*/;
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enum dis_insn_type
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{
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  dis_noninsn,			/* Not a valid instruction.  */
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  dis_nonbranch,		/* Not a branch instruction.  */
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  dis_branch,			/* Unconditional branch.  */
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  dis_condbranch,		/* Conditional branch.  */
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  dis_jsr,			/* Jump to subroutine.  */
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  dis_condjsr,			/* Conditional jump to subroutine.  */
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  dis_dref,			/* Data reference instruction.  */
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  dis_dref2			/* Two data references in instruction.  */
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};
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/* This struct is passed into the instruction decoding routine,
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   and is passed back out into each callback.  The various fields are used
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   for conveying information from your main routine into your callbacks,
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   for passing information into the instruction decoders (such as the
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   addresses of the callback functions), or for passing information
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   back from the instruction decoders to their callers.
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   It must be initialized before it is first passed; this can be done
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   by hand, or using one of the initialization macros below.  */
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typedef struct disassemble_info
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{
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  fprintf_ftype fprintf_func;
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  void *stream;
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  void *application_data;
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  /* Target description.  We could replace this with a pointer to the bfd,
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     but that would require one.  There currently isn't any such requirement
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     so to avoid introducing one we record these explicitly.  */
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  /* The bfd_flavour.  This can be bfd_target_unknown_flavour.  */
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  enum bfd_flavour flavour;
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  /* The bfd_arch value.  */
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  enum bfd_architecture arch;
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  /* The bfd_mach value.  */
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  unsigned long mach;
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  /* Endianness (for bi-endian cpus).  Mono-endian cpus can ignore this.  */
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  enum bfd_endian endian;
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  /* Endianness of code, for mixed-endian situations such as ARM BE8.  */
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  enum bfd_endian endian_code;
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  /* An arch/mach-specific bitmask of selected instruction subsets, mainly
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     for processors with run-time-switchable instruction sets.  The default,
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     zero, means that there is no constraint.  CGEN-based opcodes ports
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     may use ISA_foo masks.  */
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  void *insn_sets;
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  /* Some targets need information about the current section to accurately
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     display insns.  If this is NULL, the target disassembler function
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     will have to make its best guess.  */
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  asection *section;
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  /* An array of pointers to symbols either at the location being disassembled
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     or at the start of the function being disassembled.  The array is sorted
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     so that the first symbol is intended to be the one used.  The others are
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     present for any misc. purposes.  This is not set reliably, but if it is
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     not NULL, it is correct.  */
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  asymbol **symbols;
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  /* Number of symbols in array.  */
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  int num_symbols;
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  /* Symbol table provided for targets that want to look at it.  This is
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     used on Arm to find mapping symbols and determine Arm/Thumb code.  */
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  asymbol **symtab;
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  int symtab_pos;
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  int symtab_size;
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  /* For use by the disassembler.
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     The top 16 bits are reserved for public use (and are documented here).
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     The bottom 16 bits are for the internal use of the disassembler.  */
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  unsigned long flags;
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  /* Set if the disassembler has determined that there are one or more
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     relocations associated with the instruction being disassembled.  */
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#define INSN_HAS_RELOC	 (1 << 31)
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  /* Set if the user has requested the disassembly of data as well as code.  */
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#define DISASSEMBLE_DATA (1 << 30)
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  /* Set if the user has specifically set the machine type encoded in the
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     mach field of this structure.  */
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#define USER_SPECIFIED_MACHINE_TYPE (1 << 29)
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  /* Use internally by the target specific disassembly code.  */
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  void *private_data;
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  /* Function used to get bytes to disassemble.  MEMADDR is the
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     address of the stuff to be disassembled, MYADDR is the address to
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     put the bytes in, and LENGTH is the number of bytes to read.
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     INFO is a pointer to this struct.
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     Returns an errno value or 0 for success.  */
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  int (*read_memory_func)
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    (bfd_vma memaddr, bfd_byte *myaddr, unsigned int length,
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     struct disassemble_info *dinfo);
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  /* Function which should be called if we get an error that we can't
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     recover from.  STATUS is the errno value from read_memory_func and
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     MEMADDR is the address that we were trying to read.  INFO is a
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     pointer to this struct.  */
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  void (*memory_error_func)
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    (int status, bfd_vma memaddr, struct disassemble_info *dinfo);
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  /* Function called to print ADDR.  */
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  void (*print_address_func)
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    (bfd_vma addr, struct disassemble_info *dinfo);
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  /* Function called to determine if there is a symbol at the given ADDR.
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     If there is, the function returns 1, otherwise it returns 0.
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     This is used by ports which support an overlay manager where
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     the overlay number is held in the top part of an address.  In
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     some circumstances we want to include the overlay number in the
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     address, (normally because there is a symbol associated with
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     that address), but sometimes we want to mask out the overlay bits.  */
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  int (* symbol_at_address_func)
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    (bfd_vma addr, struct disassemble_info *dinfo);
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  /* Function called to check if a SYMBOL is can be displayed to the user.
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     This is used by some ports that want to hide special symbols when
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     displaying debugging outout.  */
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  bfd_boolean (* symbol_is_valid)
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    (asymbol *, struct disassemble_info *dinfo);
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  /* These are for buffer_read_memory.  */
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  bfd_byte *buffer;
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  bfd_vma buffer_vma;
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  unsigned int buffer_length;
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  /* This variable may be set by the instruction decoder.  It suggests
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      the number of bytes objdump should display on a single line.  If
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      the instruction decoder sets this, it should always set it to
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      the same value in order to get reasonable looking output.  */
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  int bytes_per_line;
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  /* The next two variables control the way objdump displays the raw data.  */
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  /* For example, if bytes_per_line is 8 and bytes_per_chunk is 4, the */
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  /* output will look like this:
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     00:   00000000 00000000
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     with the chunks displayed according to "display_endian". */
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  int bytes_per_chunk;
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  enum bfd_endian display_endian;
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  /* Number of octets per incremented target address
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     Normally one, but some DSPs have byte sizes of 16 or 32 bits.  */
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  unsigned int octets_per_byte;
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  /* The number of zeroes we want to see at the end of a section before we
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     start skipping them.  */
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  unsigned int skip_zeroes;
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  /* The number of zeroes to skip at the end of a section.  If the number
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     of zeroes at the end is between SKIP_ZEROES_AT_END and SKIP_ZEROES,
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     they will be disassembled.  If there are fewer than
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     SKIP_ZEROES_AT_END, they will be skipped.  This is a heuristic
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     attempt to avoid disassembling zeroes inserted by section
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     alignment.  */
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  unsigned int skip_zeroes_at_end;
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  /* Whether the disassembler always needs the relocations.  */
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  bfd_boolean disassembler_needs_relocs;
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  /* Results from instruction decoders.  Not all decoders yet support
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     this information.  This info is set each time an instruction is
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     decoded, and is only valid for the last such instruction.
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     To determine whether this decoder supports this information, set
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     insn_info_valid to 0, decode an instruction, then check it.  */
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  char insn_info_valid;		/* Branch info has been set. */
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  char branch_delay_insns;	/* How many sequential insn's will run before
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				   a branch takes effect.  (0 = normal) */
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  char data_size;		/* Size of data reference in insn, in bytes */
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  enum dis_insn_type insn_type;	/* Type of instruction */
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  bfd_vma target;		/* Target address of branch or dref, if known;
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				   zero if unknown.  */
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  bfd_vma target2;		/* Second target address for dref2 */
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  /* Command line options specific to the target disassembler.  */
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  char * disassembler_options;
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} disassemble_info;
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nkeynes@362
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/* Standard disassemblers.  Disassemble one instruction at the given
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   target address.  Return number of octets processed.  */
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typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *);
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extern int print_insn_alpha		(bfd_vma, disassemble_info *);
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extern int print_insn_avr		(bfd_vma, disassemble_info *);
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extern int print_insn_bfin		(bfd_vma, disassemble_info *);
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extern int print_insn_big_arm		(bfd_vma, disassemble_info *);
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extern int print_insn_big_mips		(bfd_vma, disassemble_info *);
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extern int print_insn_big_or32		(bfd_vma, disassemble_info *);
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extern int print_insn_big_powerpc	(bfd_vma, disassemble_info *);
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extern int print_insn_big_score         (bfd_vma, disassemble_info *);
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extern int print_insn_cr16              (bfd_vma, disassemble_info *);
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extern int print_insn_crx               (bfd_vma, disassemble_info *);
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extern int print_insn_d10v		(bfd_vma, disassemble_info *);
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extern int print_insn_d30v		(bfd_vma, disassemble_info *);
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extern int print_insn_dlx 		(bfd_vma, disassemble_info *);
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extern int print_insn_fr30		(bfd_vma, disassemble_info *);
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extern int print_insn_frv		(bfd_vma, disassemble_info *);
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extern int print_insn_h8300		(bfd_vma, disassemble_info *);
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extern int print_insn_h8300h		(bfd_vma, disassemble_info *);
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extern int print_insn_h8300s		(bfd_vma, disassemble_info *);
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extern int print_insn_h8500		(bfd_vma, disassemble_info *);
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extern int print_insn_hppa		(bfd_vma, disassemble_info *);
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extern int print_insn_i370		(bfd_vma, disassemble_info *);
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extern int print_insn_i386		(bfd_vma, disassemble_info *);
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extern int print_insn_i386_att		(bfd_vma, disassemble_info *);
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extern int print_insn_i386_intel	(bfd_vma, disassemble_info *);
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extern int print_insn_i860		(bfd_vma, disassemble_info *);
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extern int print_insn_i960		(bfd_vma, disassemble_info *);
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extern int print_insn_ia64		(bfd_vma, disassemble_info *);
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extern int print_insn_ip2k		(bfd_vma, disassemble_info *);
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extern int print_insn_iq2000		(bfd_vma, disassemble_info *);
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extern int print_insn_little_arm	(bfd_vma, disassemble_info *);
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extern int print_insn_little_mips	(bfd_vma, disassemble_info *);
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extern int print_insn_little_or32	(bfd_vma, disassemble_info *);
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extern int print_insn_little_powerpc	(bfd_vma, disassemble_info *);
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extern int print_insn_little_score      (bfd_vma, disassemble_info *); 
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extern int print_insn_lm32		(bfd_vma, disassemble_info *);
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extern int print_insn_m32c	        (bfd_vma, disassemble_info *);
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extern int print_insn_m32r		(bfd_vma, disassemble_info *);
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extern int print_insn_m68hc11		(bfd_vma, disassemble_info *);
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extern int print_insn_m68hc12		(bfd_vma, disassemble_info *);
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extern int print_insn_m68k		(bfd_vma, disassemble_info *);
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extern int print_insn_m88k		(bfd_vma, disassemble_info *);
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extern int print_insn_mcore		(bfd_vma, disassemble_info *);
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extern int print_insn_mep		(bfd_vma, disassemble_info *);
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extern int print_insn_microblaze	(bfd_vma, disassemble_info *);
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extern int print_insn_mmix		(bfd_vma, disassemble_info *);
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extern int print_insn_mn10200		(bfd_vma, disassemble_info *);
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extern int print_insn_mn10300		(bfd_vma, disassemble_info *);
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extern int print_insn_moxie		(bfd_vma, disassemble_info *);
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extern int print_insn_msp430		(bfd_vma, disassemble_info *);
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extern int print_insn_mt                (bfd_vma, disassemble_info *);
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extern int print_insn_ns32k		(bfd_vma, disassemble_info *);
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extern int print_insn_openrisc		(bfd_vma, disassemble_info *);
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extern int print_insn_pdp11		(bfd_vma, disassemble_info *);
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extern int print_insn_pj		(bfd_vma, disassemble_info *);
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extern int print_insn_rs6000		(bfd_vma, disassemble_info *);
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extern int print_insn_s390		(bfd_vma, disassemble_info *);
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extern int print_insn_sh		(bfd_vma, disassemble_info *);
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extern int print_insn_sh64		(bfd_vma, disassemble_info *);
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extern int print_insn_sh64x_media	(bfd_vma, disassemble_info *);
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extern int print_insn_sparc		(bfd_vma, disassemble_info *);
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extern int print_insn_spu		(bfd_vma, disassemble_info *);
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extern int print_insn_tic30		(bfd_vma, disassemble_info *);
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extern int print_insn_tic4x		(bfd_vma, disassemble_info *);
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extern int print_insn_tic54x		(bfd_vma, disassemble_info *);
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extern int print_insn_tic6x		(bfd_vma, disassemble_info *);
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extern int print_insn_tic80		(bfd_vma, disassemble_info *);
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extern int print_insn_tilegx		(bfd_vma, disassemble_info *);
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extern int print_insn_tilepro		(bfd_vma, disassemble_info *);
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extern int print_insn_v850		(bfd_vma, disassemble_info *);
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extern int print_insn_vax		(bfd_vma, disassemble_info *);
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extern int print_insn_w65		(bfd_vma, disassemble_info *);
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extern int print_insn_xc16x		(bfd_vma, disassemble_info *);
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extern int print_insn_xstormy16		(bfd_vma, disassemble_info *);
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extern int print_insn_xtensa		(bfd_vma, disassemble_info *);
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extern int print_insn_z80		(bfd_vma, disassemble_info *);
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extern int print_insn_z8001		(bfd_vma, disassemble_info *);
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extern int print_insn_z8002		(bfd_vma, disassemble_info *);
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extern int print_insn_rx		(bfd_vma, disassemble_info *);
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extern disassembler_ftype arc_get_disassembler (void *);
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extern disassembler_ftype cris_get_disassembler (bfd *);
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extern void print_i386_disassembler_options (FILE *);
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extern void print_mips_disassembler_options (FILE *);
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extern void print_ppc_disassembler_options (FILE *);
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extern void print_arm_disassembler_options (FILE *);
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extern void parse_arm_disassembler_option (char *);
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extern void print_s390_disassembler_options (FILE *);
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extern int  get_arm_regname_num_options (void);
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extern int  set_arm_regname_option (int);
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extern int  get_arm_regnames (int, const char **, const char **, const char *const **);
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extern bfd_boolean arm_symbol_is_valid (asymbol *, struct disassemble_info *);
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/* Fetch the disassembler for a given BFD, if that support is available.  */
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extern disassembler_ftype disassembler (bfd *);
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/* Amend the disassemble_info structure as necessary for the target architecture.
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   Should only be called after initialising the info->arch field.  */
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extern void disassemble_init_for_target (struct disassemble_info * dinfo);
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/* Document any target specific options available from the disassembler.  */
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extern void disassembler_usage (FILE *);
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nkeynes@362
   326

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/* This block of definitions is for particular callers who read instructions
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   into a buffer before calling the instruction decoder.  */
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/* Here is a function which callers may wish to use for read_memory_func.
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   It gets bytes from a buffer.  */
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extern int buffer_read_memory
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  (bfd_vma, bfd_byte *, unsigned int, struct disassemble_info *);
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/* This function goes with buffer_read_memory.
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   It prints a message using info->fprintf_func and info->stream.  */
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   337
extern void perror_memory (int, bfd_vma, struct disassemble_info *);
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   338
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   339
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/* Just print the address in hex.  This is included for completeness even
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   though both GDB and objdump provide their own (to print symbolic
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   addresses).  */
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   343
extern void generic_print_address
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  (bfd_vma, struct disassemble_info *);
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   345
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   346
/* Always true.  */
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extern int generic_symbol_at_address
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  (bfd_vma, struct disassemble_info *);
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   349
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/* Also always true.  */
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extern bfd_boolean generic_symbol_is_valid
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  (asymbol *, struct disassemble_info *);
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   354
/* Method to initialize a disassemble_info struct.  This should be
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   355
   called by all applications creating such a struct.  */
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   356
extern void init_disassemble_info (struct disassemble_info *dinfo, void *stream,
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   357
				   fprintf_ftype fprintf_func);
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   358
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   359
/* For compatibility with existing code.  */
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   360
#define INIT_DISASSEMBLE_INFO(INFO, STREAM, FPRINTF_FUNC) \
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   361
  init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
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   362
#define INIT_DISASSEMBLE_INFO_NO_ARCH(INFO, STREAM, FPRINTF_FUNC) \
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   363
  init_disassemble_info (&(INFO), (STREAM), (fprintf_ftype) (FPRINTF_FUNC))
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   364
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   365
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   366
#ifdef __cplusplus
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   367
}
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   368
#endif
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   369
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   370
#endif /* ! defined (DIS_ASM_H) */
.