/* Dynamic architecture support for GDB, the GNU debugger. Copyright 1998, 1999, 2000, 2002, 2003 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 struct gdbarch; struct frame_info; struct minimal_symbol; struct type; struct gdbarch_info; /* gdbarch trace variable */ extern int gdbarch_debug; /* 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; /* To return any structure or union type by value, store it at the address passed as an invisible first argument to the function. */ extern gdbarch_use_struct_convention_ftype always_use_struct_convention; /* 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; /* 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; /* 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); /* Identity functions on a CORE_ADDR. Just return the "addr". */ extern CORE_ADDR core_addr_identity (CORE_ADDR addr); extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity; /* No-op conversion of reg to regnum. */ extern int no_op_reg_to_regnum (int reg); /* Versions of init_frame_pc(). Do nothing; do the default. */ extern CORE_ADDR deprecated_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 DEPRECATED_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_skip_solib_resolver (struct gdbarch *gdbarch, 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, struct type *type); extern void legacy_register_to_value (struct frame_info *frame, int regnum, struct type *type, void *to); extern void legacy_value_to_register (struct frame_info *frame, int regnum, struct type *type, const void *from); extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type); /* 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); /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte order was explicitly selected. */ extern enum bfd_endian selected_byte_order (void); /* Return the selected architecture's name, or NULL if no architecture was explicitly selected. */ extern const char *selected_architecture_name (void); /* Initialize a ``struct info''. Can't use memset(0) since some default values are not zero. "fill" takes all available information and fills in any unspecified fields. */ extern void gdbarch_info_init (struct gdbarch_info *info); extern void gdbarch_info_fill (struct gdbarch *gdbarch, struct gdbarch_info *info); /* Similar to init, but this time fill in the blanks. Information is obtained from the specified architecture, global "set ..." options, and explicitly initialized INFO fields. */ extern void gdbarch_info_fill (struct gdbarch *gdbarch, struct gdbarch_info *info); /* Return the architecture for ABFD. If no suitable architecture could be find, return NULL. */ extern struct gdbarch *gdbarch_from_bfd (bfd *abfd); /* APPLE LOCAL: regsize hack */ void reg_cache_hack__architecture_changed_hook (void); #endif