+/* 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 "ansidecl.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;
+\f
+/* Standard disassemblers. Disassemble one instruction at the given
+ target address. Return number of bytes processed. */
typedef int (*disassembler_ftype)
- PARAMS((bfd_vma, bfd_byte *, disassemble_info *));
+ 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*));
+/* start-sanitize-arc */
+extern int print_insn_arc PARAMS ((bfd_vma, disassemble_info*));
+/* end-sanitize-arc */
+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*));
+
+/* Fetch the disassembler for a given BFD, if that support is available. */
+extern disassembler_ftype disassembler PARAMS ((bfd *));
+
+\f
+/* 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 is 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).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
+
+
+
+\f
+/* This block of definitions is for calling the instruction decoders
+ from GDB. */
+
+/* GDB--Like target_read_memory, but slightly different parameters. */
+extern int
+dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr, int len,
+ disassemble_info *info));
+
+/* GDB--Like memory_error with slightly different parameters. */
+extern void
+dis_asm_memory_error
+ PARAMS ((int status, bfd_vma memaddr, disassemble_info *info));
+
+/* GDB--Like print_address with slightly different parameters. */
+extern void
+dis_asm_print_address PARAMS ((bfd_vma addr, disassemble_info *info));
#define GDB_INIT_DISASSEMBLE_INFO(INFO, STREAM) \
- INFO.fprintf_func = (fprintf_ftype)fprintf_filtered, \
- INFO.stream = (STREAM)
-
-/* Standard dis-assemblers. */
-
-extern int print_insn_big_mips PARAMS ((bfd_vma, bfd_byte*,disassemble_info*));
-extern int print_insn_little_mips
- PARAMS ((bfd_vma,bfd_byte*,disassemble_info*));
-extern int print_insn_i386 PARAMS ((bfd_vma,bfd_byte*,disassemble_info*));
-extern int print_insn_m68k PARAMS ((bfd_vma,bfd_byte*,disassemble_info*));
-extern int print_insn_z8001 PARAMS ((bfd_vma,bfd_byte*,disassemble_info*));
-extern int print_insn_z8002 PARAMS ((bfd_vma,bfd_byte*,disassemble_info*));
+ (INFO).fprintf_func = (fprintf_ftype)fprintf_filtered, \
+ (INFO).stream = (STREAM), \
+ (INFO).read_memory_func = dis_asm_read_memory, \
+ (INFO).memory_error_func = dis_asm_memory_error, \
+ (INFO).print_address_func = dis_asm_print_address, \
+ (INFO).insn_info_valid = 0
+
+#endif /* ! defined (DIS_ASM_H) */
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