/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007
+ Free Software Foundation, Inc.
This file is part of GDB.
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. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, 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;
-/* 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;
+/* 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. */
/* 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;
+/* 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;
-/* 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);
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. */
+/* 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);
-/* 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. */
-
-void init_frame_pc_noop (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);
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 CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc);
-extern int generic_in_solib_call_trampoline (CORE_ADDR pc, char *name);
+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);
/* 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. */
+/* Prop up old targets that use various 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);
+/* 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
extern int legacy_register_sim_regno (int regnum);
+/* 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. */
+ 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);
+/* Similar to init, but this time fill in the blanks. Information is
+ obtained from the global "set ..." options and explicitly
+ initialized INFO fields. */
+extern void gdbarch_info_fill (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
projects / deliverable / binutils-gdb.git / blobdiff