/* Dynamic architecture support for GDB, the GNU debugger. Copyright 1998, 1999, 2000, 2002, 2003, 2004 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; /* An implementation of return_value that props up architectures still using USE_STRUCT_RETURN, EXTRACT_RETURN_VALUE and STORE_RETURN_VALUE. See also the hacks in "stack.c". */ enum return_value_convention legacy_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf); /* 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_deprecated_use_struct_convention_ftype always_use_struct_convention; /* 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); /* 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_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 sigtramp macros. */ extern int legacy_pc_in_sigtramp (CORE_ADDR pc, char *name); /* By default, registers are not convertible. */ extern int generic_convert_register_p (int regnum, struct type *type); extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type); extern int generic_instruction_nullified (struct gdbarch *gdbarch, struct regcache *regcache); /* 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); #endif