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/* Dynamic architecture support for GDB, the GNU debugger.
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Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
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This file is part of GDB.
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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 2 of the License, or
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(at your option) 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., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef GDBARCH_UTILS_H
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#define GDBARCH_UTILS_H
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/* gdbarch trace variable */
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extern int gdbarch_debug;
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/* Fallback for register convertible. */
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extern gdbarch_register_convertible_ftype generic_register_convertible_not;
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/* Helper function for targets that don't know how my arguments are
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being passed */
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extern gdbarch_frame_num_args_ftype frame_num_args_unknown;
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/* Implementation of breakpoint from PC using any of the deprecated
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macros BREAKPOINT, LITTLE_BREAKPOINT, BIG_BREAPOINT. For legacy
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targets that don't yet implement their own breakpoint_from_pc(). */
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extern gdbarch_breakpoint_from_pc_ftype legacy_breakpoint_from_pc;
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/* Frameless functions not identifable. */
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extern gdbarch_frameless_function_invocation_ftype generic_frameless_function_invocation_not;
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/* Only structures, unions, and arrays are returned using the struct
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convention. Note that arrays are never passed by value in the C
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language family, so that case is irrelevant for C. */
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extern gdbarch_return_value_on_stack_ftype generic_return_value_on_stack_not;
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/* Map onto old REGISTER_NAMES. */
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extern char *legacy_register_name (int i);
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/* Backward compatible call_dummy_words. */
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extern LONGEST legacy_call_dummy_words[];
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extern int legacy_sizeof_call_dummy_words;
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/* Typical remote_translate_xfer_address */
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extern gdbarch_remote_translate_xfer_address_ftype generic_remote_translate_xfer_address;
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/* Generic implementation of prologue_frameless_p. Just calls
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SKIP_PROLOG and checks the return value to see if it actually
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changed. */
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extern gdbarch_prologue_frameless_p_ftype generic_prologue_frameless_p;
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/* The only possible cases for inner_than. */
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extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
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extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
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/* Floating point values. */
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extern const struct floatformat *default_float_format (struct gdbarch *gdbarch);
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extern const struct floatformat *default_double_format (struct gdbarch *gdbarch);
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/* Helper function for targets that don't know how my arguments are
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being passed */
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extern int frame_num_args_unknown (struct frame_info *fi);
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/* The following DEPRECATED interfaces are for pre- multi-arch legacy
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targets. */
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/* DEPRECATED pre- multi-arch interface. Explicitly set the dynamic
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target-system-dependent parameters based on bfd_architecture and
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machine. This function is deprecated, use
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set_gdbarch_from_arch_machine(). */
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extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long);
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/* DEPRECATED pre- multi-arch interface. Notify the target dependent
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backend of a change to the selected architecture. A zero return
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status indicates that the target did not like the change. */
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extern int (*target_architecture_hook) (const struct bfd_arch_info *);
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/* Default raw->sim register re-numbering - does nothing. */
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extern int default_register_sim_regno (int reg_nr);
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/* Identity function on a CORE_ADDR. Just returns its parameter. */
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extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
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/* No-op conversion of reg to regnum. */
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extern int no_op_reg_to_regnum (int reg);
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/* Default frame_args_address and frame_locals_address. */
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extern CORE_ADDR default_frame_address (struct frame_info *);
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/* Default prepare_to_procced. */
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extern int default_prepare_to_proceed (int select_it);
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extern int generic_prepare_to_proceed (int select_it);
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/* Versions of init_frame_pc(). Do nothing; do the default. */
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void init_frame_pc_noop (int fromleaf, struct frame_info *prev);
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void init_frame_pc_default (int fromleaf, struct frame_info *prev);
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/* Version of cannot_fetch_register() / cannot_store_register() that
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always fails. */
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int cannot_register_not (int regnum);
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#endif
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