/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
+
+ Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007, 2008, 2009
+ 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#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;
-
-/* 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;
-
-/* 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 char *legacy_register_name (int i);
-
-/* 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;
+/* An implementation of gdbarch_displaced_step_copy_insn for
+ processors that don't need to modify the instruction before
+ single-stepping the displaced copy.
+
+ Simply copy gdbarch_max_insn_length (ARCH) bytes from FROM to TO.
+ The closure is an array of that many bytes containing the
+ instruction's bytes, allocated with xmalloc. */
+extern struct displaced_step_closure *
+ simple_displaced_step_copy_insn (struct gdbarch *gdbarch,
+ CORE_ADDR from, CORE_ADDR to,
+ struct regcache *regs);
+
+/* Simple implementation of gdbarch_displaced_step_free_closure: Call
+ xfree.
+ This is appropriate for use with simple_displaced_step_copy_insn. */
+extern void
+ simple_displaced_step_free_closure (struct gdbarch *gdbarch,
+ struct displaced_step_closure *closure);
+
+/* Possible value for gdbarch_displaced_step_location:
+ Place displaced instructions at the program's entry point,
+ leaving space for inferior function call return breakpoints. */
+extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch);
/* 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 (struct gdbarch *gdbarch, CORE_ADDR addr);
+extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity;
-/* Helper function for targets that don't know how my arguments are
- being passed */
-extern int frame_num_args_unknown (struct frame_info *fi);
+/* No-op conversion of reg to regnum. */
+extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg);
-/* The following DEPRECATED interfaces are for pre- multi-arch legacy
- targets. */
+/* Do nothing version of elf_make_msymbol_special. */
-/* 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(). */
+void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym);
-extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long);
+/* Do nothing version of coff_make_msymbol_special. */
-/* 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. */
+void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);
-extern int (*target_architecture_hook) (const struct bfd_arch_info *);
+/* Version of cannot_fetch_register() / cannot_store_register() that
+ always fails. */
+int cannot_register_not (struct gdbarch *gdbarch, int regnum);
-/* Default raw->sim register re-numbering - does nothing. */
+/* Legacy version of target_virtual_frame_pointer(). Assumes that
+ there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or
+ raw. */
-extern int default_register_sim_regno (int reg_nr);
+extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
-/* Identity function on a CORE_ADDR. Just returns its parameter. */
+extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame,
+ CORE_ADDR pc);
-extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
+extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch,
+ CORE_ADDR pc);
-/* No-op conversion of reg to regnum. */
+extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name);
-extern int no_op_reg_to_regnum (int reg);
+extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc);
-/* Default frame_args_address and frame_locals_address. */
+/* By default, registers are not convertible. */
+extern int generic_convert_register_p (struct gdbarch *gdbarch, int regnum,
+ struct type *type);
-extern CORE_ADDR default_frame_address (struct frame_info *);
+extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch,
+ struct type *type);
-/* Default prepare_to_procced. */
+extern int generic_instruction_nullified (struct gdbarch *gdbarch,
+ struct regcache *regcache);
-extern int default_prepare_to_proceed (int select_it);
+int default_remote_register_number (struct gdbarch *gdbarch,
+ int regno);
-extern int generic_prepare_to_proceed (int select_it);
+/* For compatibility with older architectures, returns
+ (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
+ name. */
-/* Versions of init_frame_pc(). Do nothing; do the default. */
+extern int legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum);
-void init_frame_pc_noop (int fromleaf, struct frame_info *prev);
+/* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte
+ order was explicitly selected. */
+extern enum bfd_endian selected_byte_order (void);
-void init_frame_pc_default (int fromleaf, struct frame_info *prev);
+/* Return the selected architecture's name, or NULL if no architecture
+ was explicitly selected. */
+extern const char *selected_architecture_name (void);
-/* Version of cannot_fetch_register() / cannot_store_register() that
- always fails. */
+/* 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. */
-int cannot_register_not (int regnum);
+extern void gdbarch_info_init (struct gdbarch_info *info);
-/* Legacy version of target_virtual_frame_pointer(). Assumes that
- there is an FP_REGNUM and that it is the same, cooked or raw. */
+/* 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);
-extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
+/* 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