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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);
/* Accessor for old global function pointer for disassembly. */
extern int legacy_print_insn (bfd_vma vma, disassemble_info *info);
/* 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);
/* Legacy version of target_virtual_frame_pointer(). Assumes that
there is an FP_REGNUM and that it is the same, cooked or raw. */
extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc);
#endif
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