| /* Dynamic architecture support for GDB, the GNU debugger. |
| |
| Copyright 1998, 1999, 2000, 2002 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 |
| |
| /* 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; |
| |
| /* 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; |
| |
| /* 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; |
| |
| /* 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); |
| |
| /* Floating point values. */ |
| 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. */ |
| |
| extern CORE_ADDR core_addr_identity (CORE_ADDR addr); |
| |
| /* 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. */ |
| |
| 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); |
| |
| /* 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. */ |
| |
| 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 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 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); |
| |
| /* 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); |
| |
| /* Initialize a ``struct info''. Can't use memset(0) since some |
| default values are not zero. */ |
| extern void gdbarch_info_init (struct gdbarch_info *info); |
| |
| #endif |