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- /* Interface between the opcode library and its callers.
- Written by Cygnus Support, 1993.
-
- The opcode library (libopcodes.a) provides instruction decoders for
- a large variety of instruction sets, callable with an identical
- interface, for making instruction-processing programs more independent
- of the instruction set being processed. */
-
- #ifndef DIS_ASM_H
- #define DIS_ASM_H
-
- #include <stdio.h>
- #include "bfd.h"
-
- typedef int (*fprintf_ftype) PARAMS((FILE*, const char*, ...));
-
- enum dis_insn_type {
- dis_noninsn, /* Not a valid instruction */
- dis_nonbranch, /* Not a branch instruction */
- dis_branch, /* Unconditional branch */
- dis_condbranch, /* Conditional branch */
- dis_jsr, /* Jump to subroutine */
- dis_condjsr, /* Conditional jump to subroutine */
- dis_dref, /* Data reference instruction */
- dis_dref2 /* Two data references in instruction */
- };
-
- /* This struct is passed into the instruction decoding routine,
- and is passed back out into each callback. The various fields are used
- for conveying information from your main routine into your callbacks,
- for passing information into the instruction decoders (such as the
- addresses of the callback functions), or for passing information
- back from the instruction decoders to their callers.
-
- It must be initialized before it is first passed; this can be done
- by hand, or using one of the initialization macros below. */
-
- typedef struct disassemble_info {
- fprintf_ftype fprintf_func;
- FILE *stream;
- PTR application_data;
-
- /* For use by the disassembler. */
- int flags;
- PTR private_data;
-
- /* Function used to get bytes to disassemble. MEMADDR is the
- address of the stuff to be disassembled, MYADDR is the address to
- put the bytes in, and LENGTH is the number of bytes to read.
- INFO is a pointer to this struct.
- Returns an errno value or 0 for success. */
- int (*read_memory_func)
- PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, int length,
- struct disassemble_info *info));
-
- /* Function which should be called if we get an error that we can't
- recover from. STATUS is the errno value from read_memory_func and
- MEMADDR is the address that we were trying to read. INFO is a
- pointer to this struct. */
- void (*memory_error_func)
- PARAMS ((int status, bfd_vma memaddr, struct disassemble_info *info));
-
- /* Function called to print ADDR. */
- void (*print_address_func)
- PARAMS ((bfd_vma addr, struct disassemble_info *info));
-
- /* These are for buffer_read_memory. */
- bfd_byte *buffer;
- bfd_vma buffer_vma;
- int buffer_length;
-
- /* Results from instruction decoders. Not all decoders yet support
- this information. This info is set each time an instruction is
- decoded, and is only valid for the last such instruction.
-
- To determine whether this decoder supports this information, set
- insn_info_valid to 0, decode an instruction, then check it. */
-
- char insn_info_valid; /* Branch info has been set. */
- char branch_delay_insns; /* How many sequential insn's will run before
- a branch takes effect. (0 = normal) */
- char data_size; /* Size of data reference in insn, in bytes */
- enum dis_insn_type insn_type; /* Type of instruction */
- bfd_vma target; /* Target address of branch or dref, if known;
- zero if unknown. */
- bfd_vma target2; /* Second target address for dref2 */
-
- } disassemble_info;
-
-
- /* Standard disassemblers. Disassemble one instruction at the given
- target address. Return number of bytes processed. */
- typedef int (*disassembler_ftype)
- PARAMS((bfd_vma, disassemble_info *));
-
- extern int print_insn_big_mips PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_little_mips PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_i386 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_m68k PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_z8001 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_z8002 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_h8300 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_h8300h PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_h8500 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_alpha PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_arm PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_sparc PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_big_a29k PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_little_a29k PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_i960 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_sh PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_shl PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_hppa PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_m88k PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_ns32k PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_big_powerpc PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_little_powerpc PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_rs6000 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_w65 PARAMS ((bfd_vma, disassemble_info*));
- extern int print_insn_m98k PARAMS ((bfd_vma, disassemble_info*));
-
- /* Fetch the disassembler for a given BFD, if that support is available. */
- extern disassembler_ftype disassembler PARAMS ((bfd *));
-
-
- /* This block of definitions is for particular callers who read instructions
- into a buffer before calling the instruction decoder. */
-
- /* Here is a function which callers may wish to use for read_memory_func.
- It gets bytes from a buffer. */
- extern int buffer_read_memory
- PARAMS ((bfd_vma, bfd_byte *, int, struct disassemble_info *));
-
- /* This function goes with buffer_read_memory.
- It prints a message using info->fprintf_func and info->stream. */
- extern void perror_memory PARAMS ((int, bfd_vma, struct disassemble_info *));
-
-
- /* Just print the address in hex. This is included for completeness even
- though both GDB and objdump provide their own (to print symbolic
- addresses). */
- extern void generic_print_address
- PARAMS ((bfd_vma, struct disassemble_info *));
-
- #define INIT_DISASSEMBLE_INFO(INFO, STREAM) \
- (INFO).fprintf_func = (fprintf_ftype)fprintf, \
- (INFO).stream = (STREAM), \
- (INFO).buffer = NULL, \
- (INFO).buffer_vma = 0, \
- (INFO).buffer_length = 0, \
- (INFO).read_memory_func = buffer_read_memory, \
- (INFO).memory_error_func = perror_memory, \
- (INFO).print_address_func = generic_print_address, \
- (INFO).insn_info_valid = 0
-
- #endif /* ! defined (DIS_ASM_H) */
-