179 lines
6.7 KiB
C
179 lines
6.7 KiB
C
/* Dynamic architecture support for GDB, the GNU debugger.
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Copyright 1998, 1999, 2000, 2002, 2003 Free Software Foundation,
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Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef GDBARCH_UTILS_H
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#define GDBARCH_UTILS_H
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struct gdbarch;
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struct frame_info;
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struct minimal_symbol;
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struct type;
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struct gdbarch_info;
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/* gdbarch trace variable */
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extern int gdbarch_debug;
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/* Fallback for register convertible. */
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extern gdbarch_deprecated_register_convertible_ftype deprecated_register_convertible_not;
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/* Implementation of extract return value that grubs around in the
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register cache. */
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extern gdbarch_extract_return_value_ftype legacy_extract_return_value;
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/* Implementation of store return value that grubs the register cache. */
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extern gdbarch_store_return_value_ftype legacy_store_return_value;
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/* To return any structure or union type by value, store it at the
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address passed as an invisible first argument to the function. */
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extern gdbarch_use_struct_convention_ftype always_use_struct_convention;
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/* Frameless functions not identifable. */
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extern gdbarch_frameless_function_invocation_ftype generic_frameless_function_invocation_not;
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/* Only structures, unions, and arrays are returned using the struct
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convention. Note that arrays are never passed by value in the C
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language family, so that case is irrelevant for C. */
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extern gdbarch_return_value_on_stack_ftype generic_return_value_on_stack_not;
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/* Backward compatible call_dummy_words. */
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extern LONGEST legacy_call_dummy_words[];
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extern int legacy_sizeof_call_dummy_words;
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/* Typical remote_translate_xfer_address */
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extern gdbarch_remote_translate_xfer_address_ftype generic_remote_translate_xfer_address;
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/* Generic implementation of prologue_frameless_p. Just calls
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SKIP_PROLOG and checks the return value to see if it actually
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changed. */
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extern gdbarch_prologue_frameless_p_ftype generic_prologue_frameless_p;
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/* The only possible cases for inner_than. */
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extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
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extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
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/* Floating point values. */
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extern const struct floatformat *default_float_format (struct gdbarch *gdbarch);
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extern const struct floatformat *default_double_format (struct gdbarch *gdbarch);
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/* Identity functions on a CORE_ADDR. Just return the "addr". */
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extern CORE_ADDR core_addr_identity (CORE_ADDR addr);
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extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity;
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/* No-op conversion of reg to regnum. */
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extern int no_op_reg_to_regnum (int reg);
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/* Versions of init_frame_pc(). Do nothing; do the default. */
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extern CORE_ADDR deprecated_init_frame_pc_default (int fromleaf, struct frame_info *prev);
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/* Do nothing version of elf_make_msymbol_special. */
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void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym);
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/* Do nothing version of coff_make_msymbol_special. */
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void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);
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/* Version of cannot_fetch_register() / cannot_store_register() that
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always fails. */
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int cannot_register_not (int regnum);
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/* Legacy version of target_virtual_frame_pointer(). Assumes that
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there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or
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raw. */
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extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;
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extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc);
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extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch,
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CORE_ADDR pc);
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extern int generic_in_solib_call_trampoline (CORE_ADDR pc, char *name);
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extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name);
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extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc);
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/* Assume that the world is sane, a registers raw and virtual size
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both match its type. */
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extern int generic_register_size (int regnum);
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/* Assume that the world is sane, the registers are all adjacent. */
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extern int generic_register_byte (int regnum);
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/* Prop up old targets that use various IN_SIGTRAMP() macros. */
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extern int legacy_pc_in_sigtramp (CORE_ADDR pc, char *name);
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/* The orginal register_convert*() functions were overloaded. They
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were used to both: convert between virtual and raw register formats
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(something that is discouraged); and to convert a register to the
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type of a corresponding variable. These legacy functions preserve
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that overloaded behavour in existing targets. */
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extern int legacy_convert_register_p (int regnum, struct type *type);
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extern void legacy_register_to_value (struct frame_info *frame, int regnum,
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struct type *type, void *to);
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extern void legacy_value_to_register (struct frame_info *frame, int regnum,
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struct type *type, const void *from);
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extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch,
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struct type *type);
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/* For compatibility with older architectures, returns
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(LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
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name. */
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extern int legacy_register_sim_regno (int regnum);
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/* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte
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order was explicitly selected. */
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extern enum bfd_endian selected_byte_order (void);
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/* Return the selected architecture's name, or NULL if no architecture
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was explicitly selected. */
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extern const char *selected_architecture_name (void);
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/* Initialize a ``struct info''. Can't use memset(0) since some
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default values are not zero. "fill" takes all available
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information and fills in any unspecified fields. */
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extern void gdbarch_info_init (struct gdbarch_info *info);
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extern void gdbarch_info_fill (struct gdbarch *gdbarch,
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struct gdbarch_info *info);
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/* Similar to init, but this time fill in the blanks. Information is
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obtained from the specified architecture, global "set ..." options,
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and explicitly initialized INFO fields. */
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extern void gdbarch_info_fill (struct gdbarch *gdbarch,
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struct gdbarch_info *info);
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/* Return the architecture for ABFD. If no suitable architecture
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could be find, return NULL. */
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extern struct gdbarch *gdbarch_from_bfd (bfd *abfd);
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#endif
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