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[/] [or1k/] [trunk/] [insight/] [gdb/] [arch-utils.h] - Rev 1765

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/* Dynamic architecture support for GDB, the GNU debugger.
   Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
 
   This file is part of GDB.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */
 
#ifndef GDBARCH_UTILS_H
#define GDBARCH_UTILS_H
 
/* gdbarch trace variable */
extern int gdbarch_debug;
 
/* Fallback for register convertible. */
extern gdbarch_register_convertible_ftype generic_register_convertible_not;
 
/* Helper function for targets that don't know how my arguments are
   being passed */
extern gdbarch_frame_num_args_ftype frame_num_args_unknown;
 
/* Implementation of breakpoint from PC using any of the deprecated
   macros BREAKPOINT, LITTLE_BREAKPOINT, BIG_BREAPOINT.  For legacy
   targets that don't yet implement their own breakpoint_from_pc(). */
extern gdbarch_breakpoint_from_pc_ftype legacy_breakpoint_from_pc;
 
/* Frameless functions not identifable. */
extern gdbarch_frameless_function_invocation_ftype generic_frameless_function_invocation_not;
 
/* Only structures, unions, and arrays are returned using the struct
   convention.  Note that arrays are never passed by value in the C
   language family, so that case is irrelevant for C.  */
extern gdbarch_return_value_on_stack_ftype generic_return_value_on_stack_not;
 
/* Map onto old REGISTER_NAMES. */
extern char *legacy_register_name (int i);
 
/* Backward compatible call_dummy_words. */
extern LONGEST legacy_call_dummy_words[];
extern int legacy_sizeof_call_dummy_words;
 
/* Typical remote_translate_xfer_address */
extern gdbarch_remote_translate_xfer_address_ftype generic_remote_translate_xfer_address;
 
/* Generic implementation of prologue_frameless_p.  Just calls
   SKIP_PROLOG and checks the return value to see if it actually
   changed. */
extern gdbarch_prologue_frameless_p_ftype generic_prologue_frameless_p;
 
/* The only possible cases for inner_than. */
extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
 
/* Floating point values. */
extern const struct floatformat *default_float_format (struct gdbarch *gdbarch);
extern const struct floatformat *default_double_format (struct gdbarch *gdbarch);
 
/* Helper function for targets that don't know how my arguments are
   being passed */
extern int frame_num_args_unknown (struct frame_info *fi);
 
 
/* The following DEPRECATED interfaces are for pre- multi-arch legacy
   targets. */
 
/* DEPRECATED pre- multi-arch interface.  Explicitly set the dynamic
   target-system-dependent parameters based on bfd_architecture and
   machine.  This function is deprecated, use
   set_gdbarch_from_arch_machine(). */
 
extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long);
 
/* DEPRECATED pre- multi-arch interface.  Notify the target dependent
   backend of a change to the selected architecture. A zero return
   status indicates that the target did not like the change. */
 
extern int (*target_architecture_hook) (const struct bfd_arch_info *);
 
 
/* Default raw->sim register re-numbering - does nothing. */
 
extern int default_register_sim_regno (int reg_nr);
 
/* Identity function on a CORE_ADDR.  Just returns its parameter.  */
 
extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
 
/* No-op conversion of reg to regnum. */
 
extern int no_op_reg_to_regnum (int reg);
 
/* Default frame_args_address and frame_locals_address.  */
 
extern CORE_ADDR default_frame_address (struct frame_info *);
 
/* Default prepare_to_procced. */
 
extern int default_prepare_to_proceed (int select_it);
 
extern int generic_prepare_to_proceed (int select_it);
 
/* Versions of init_frame_pc().  Do nothing; do the default. */
 
void init_frame_pc_noop (int fromleaf, struct frame_info *prev);
 
void init_frame_pc_default (int fromleaf, struct frame_info *prev);
 
/* Version of cannot_fetch_register() / cannot_store_register() that
   always fails. */
 
int cannot_register_not (int regnum);
 
#endif
 

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