/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
+
+ Copyright 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
This file is part of GDB.
#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;
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;
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);
+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);
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);
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);
/* Versions of init_frame_pc(). Do nothing; do the default. */
-void init_frame_pc_noop (int fromleaf, struct frame_info *prev);
+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);
-void 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. */
+ 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 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 all registers are the same size and a size identical to that
- of the integer type. */
-extern int generic_register_raw_size (int regnum);
+/* 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);
-/* Assume the virtual size of registers corresponds to the virtual type. */
+/* For compatibility with older architectures, returns
+ (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
+ name. */
-extern int generic_register_virtual_size (int regnum);
+extern int legacy_register_sim_regno (int regnum);
/* Initialize a ``struct info''. Can't use memset(0) since some
default values are not zero. */