/* Dynamic architecture support for GDB, the GNU debugger. Copyright 1998, 1999, 2000, 2002 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; extern CORE_ADDR generic_cannot_extract_struct_value_address (char *dummy); /* 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; /* Implementation of extract return value that grubs around in the register cache. */ extern gdbarch_extract_return_value_ftype legacy_extract_return_value; /* Implementation of store return value that grubs the register cache. */ extern gdbarch_store_return_value_ftype legacy_store_return_value; /* 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 const 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 *); /* 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 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. */ extern CORE_ADDR init_frame_pc_noop (int fromleaf, struct frame_info *prev); extern CORE_ADDR init_frame_pc_default (int fromleaf, struct frame_info *prev); /* Do nothing version of elf_make_msymbol_special. */ void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym); /* Do nothing version of coff_make_msymbol_special. */ void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); /* 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); extern CORE_ADDR generic_dynamic_trampoline_nextpc (CORE_ADDR pc); extern int generic_in_solib_call_trampoline (CORE_ADDR pc, char *name); extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name); extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc); /* Assume that the world is sane, a registers raw and virtual size both match its type. */ extern int generic_register_size (int regnum); /* Assume that the world is sane, the registers are all adjacent. */ extern int generic_register_byte (int regnum); /* Prop up old targets that use various IN_SIGTRAMP() macros. */ extern int legacy_pc_in_sigtramp (CORE_ADDR pc, char *name); /* The orginal register_convert*() functions were overloaded. They were used to both: convert between virtual and raw register formats (something that is discouraged); and to convert a register to the type of a corresponding variable. These legacy functions preserve that overloaded behavour in existing targets. */ extern int legacy_convert_register_p (int regnum); extern void legacy_register_to_value (int regnum, struct type *type, char *from, char *to); extern void legacy_value_to_register (struct type *type, int regnum, char *from, char *to); /* For compatibility with older architectures, returns (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid name. */ extern int legacy_register_sim_regno (int regnum); /* Initialize a ``struct info''. Can't use memset(0) since some default values are not zero. */ extern void gdbarch_info_init (struct gdbarch_info *info); #endif