-extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
-
-typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
-extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
-extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
-
-extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
-extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
-
-extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
-
-typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
-extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
-extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
-
-extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
-
-typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
-extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
-extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
-
-/* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
- frame-base. Enable frame-base before frame-unwind. */
-
-extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
-extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
-extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
-
-extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
-
-typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
-extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
-extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
-
-typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
-extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
-extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
-
-extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
-extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
-
-typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
-extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
-extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
-
-/* On some machines there are bits in addresses which are not really
- part of the address, but are used by the kernel, the hardware, etc.
- for special purposes. gdbarch_addr_bits_remove takes out any such bits so
- we get a "real" address such as one would find in a symbol table.
- This is used only for addresses of instructions, and even then I'm
- not sure it's used in all contexts. It exists to deal with there
- being a few stray bits in the PC which would mislead us, not as some
- sort of generic thing to handle alignment or segmentation (it's
- possible it should be in TARGET_READ_PC instead). */
-
-typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
-
-/* FIXME/cagney/2001-01-18: This should be split in two. A target method that
- indicates if the target needs software single step. An ISA method to
- implement it.
-
- FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
- target can single step. If not, then implement single step using breakpoints.
-
- Return a vector of addresses on which the software single step
- breakpoints should be inserted. NULL means software single step is
- not used.
- Multiple breakpoints may be inserted for some instructions such as
- conditional branch. However, each implementation must always evaluate
- the condition and only put the breakpoint at the branch destination if
- the condition is true, so that we ensure forward progress when stepping
- past a conditional branch to self. */
-
-extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
-
-typedef VEC (CORE_ADDR) * (gdbarch_software_single_step_ftype) (struct regcache *regcache);
-extern VEC (CORE_ADDR) * gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache);
-extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
-
-/* Return non-zero if the processor is executing a delay slot and a
- further single-step is needed before the instruction finishes. */
-
-extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
-extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
-extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
-
-/* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
- disassembler. Perhaps objdump can handle it? */
-
-typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
-extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
-extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
-
-typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (struct frame_info *frame, CORE_ADDR pc);
-extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, struct frame_info *frame, CORE_ADDR pc);
-extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
-
-/* If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
- evaluates non-zero, this is the address where the debugger will place
- a step-resume breakpoint to get us past the dynamic linker. */
-
-typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
-extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
-extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
-
-/* Some systems also have trampoline code for returning from shared libs. */
-
-typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
-extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name);
-extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
-
-/* A target might have problems with watchpoints as soon as the stack
- frame of the current function has been destroyed. This mostly happens
- as the first action in a function's epilogue. stack_frame_destroyed_p()
- is defined to return a non-zero value if either the given addr is one
- instruction after the stack destroying instruction up to the trailing
- return instruction or if we can figure out that the stack frame has
- already been invalidated regardless of the value of addr. Targets
- which don't suffer from that problem could just let this functionality
- untouched. */
-
-typedef int (gdbarch_stack_frame_destroyed_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern int gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_stack_frame_destroyed_p (struct gdbarch *gdbarch, gdbarch_stack_frame_destroyed_p_ftype *stack_frame_destroyed_p);
-
-/* Process an ELF symbol in the minimal symbol table in a backend-specific
- way. Normally this hook is supposed to do nothing, however if required,
- then this hook can be used to apply tranformations to symbols that are
- considered special in some way. For example the MIPS backend uses it
- to interpret `st_other' information to mark compressed code symbols so
- that they can be treated in the appropriate manner in the processing of
- the main symbol table and DWARF-2 records. */
-
-extern int gdbarch_elf_make_msymbol_special_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
-extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
-extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
-
-typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
-extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
-extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
-
-/* Process a symbol in the main symbol table in a backend-specific way.
- Normally this hook is supposed to do nothing, however if required,
- then this hook can be used to apply tranformations to symbols that
- are considered special in some way. This is currently used by the
- MIPS backend to make sure compressed code symbols have the ISA bit
- set. This in turn is needed for symbol values seen in GDB to match
- the values used at the runtime by the program itself, for function
- and label references. */
-
-typedef void (gdbarch_make_symbol_special_ftype) (struct symbol *sym, struct objfile *objfile);
-extern void gdbarch_make_symbol_special (struct gdbarch *gdbarch, struct symbol *sym, struct objfile *objfile);
-extern void set_gdbarch_make_symbol_special (struct gdbarch *gdbarch, gdbarch_make_symbol_special_ftype *make_symbol_special);
-
-/* Adjust the address retrieved from a DWARF-2 record other than a line
- entry in a backend-specific way. Normally this hook is supposed to
- return the address passed unchanged, however if that is incorrect for
- any reason, then this hook can be used to fix the address up in the
- required manner. This is currently used by the MIPS backend to make
- sure addresses in FDE, range records, etc. referring to compressed
- code have the ISA bit set, matching line information and the symbol
- table. */
-
-typedef CORE_ADDR (gdbarch_adjust_dwarf2_addr_ftype) (CORE_ADDR pc);
-extern CORE_ADDR gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, CORE_ADDR pc);
-extern void set_gdbarch_adjust_dwarf2_addr (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_addr_ftype *adjust_dwarf2_addr);
-
-/* Adjust the address updated by a line entry in a backend-specific way.
- Normally this hook is supposed to return the address passed unchanged,
- however in the case of inconsistencies in these records, this hook can
- be used to fix them up in the required manner. This is currently used
- by the MIPS backend to make sure all line addresses in compressed code
- are presented with the ISA bit set, which is not always the case. This
- in turn ensures breakpoint addresses are correctly matched against the
- stop PC. */
-
-typedef CORE_ADDR (gdbarch_adjust_dwarf2_line_ftype) (CORE_ADDR addr, int rel);
-extern CORE_ADDR gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, CORE_ADDR addr, int rel);
-extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adjust_dwarf2_line_ftype *adjust_dwarf2_line);
-
-extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
-extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
-
-extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
-extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
-
-extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
-extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
-extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
-
-extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
-
-typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
-extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
-extern void set_gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_to_name_ftype *address_class_type_flags_to_name);
-
-/* Return the appropriate type_flags for the supplied address class.
- This function should return 1 if the address class was recognized and
- type_flags was set, zero otherwise. */
-
-extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
-extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
-extern void set_gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_name_to_type_flags_ftype *address_class_name_to_type_flags);
-
-/* Is a register in a group */
-
-typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
-extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
-extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
-
-/* Fetch the pointer to the ith function argument. */
-
-extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
-
-typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
-extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
-extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
-
-/* Iterate over all supported register notes in a core file. For each
- supported register note section, the iterator must call CB and pass
- CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
- the supported register note sections based on the current register
- values. Otherwise it should enumerate all supported register note
- sections. */
-
-extern int gdbarch_iterate_over_regset_sections_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_iterate_over_regset_sections_ftype) (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
-extern void gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache);
-extern void set_gdbarch_iterate_over_regset_sections (struct gdbarch *gdbarch, gdbarch_iterate_over_regset_sections_ftype *iterate_over_regset_sections);
-
-/* Create core file notes */
-
-extern int gdbarch_make_corefile_notes_p (struct gdbarch *gdbarch);
-
-typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
-extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size);
-extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes);
-
-/* The elfcore writer hook to use to write Linux prpsinfo notes to core
- files. Most Linux architectures use the same prpsinfo32 or
- prpsinfo64 layouts, and so won't need to provide this hook, as we
- call the Linux generic routines in bfd to write prpsinfo notes by
- default. */
-
-extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch);
-
-typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
-extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info);
-extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo);
-
-/* Find core file memory regions */
-
-extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_find_memory_regions_ftype) (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
-extern int gdbarch_find_memory_regions (struct gdbarch *gdbarch, find_memory_region_ftype func, void *data);
-extern void set_gdbarch_find_memory_regions (struct gdbarch *gdbarch, gdbarch_find_memory_regions_ftype *find_memory_regions);
-
-/* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
- core file into buffer READBUF with length LEN. Return the number of bytes read
- (zero indicates failure).
- failed, otherwise, return the red length of READBUF. */
-
-extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
-
-typedef ULONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
-extern ULONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
-extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
-
-/* Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
- libraries list from core file into buffer READBUF with length LEN.
- Return the number of bytes read (zero indicates failure). */
-
-extern int gdbarch_core_xfer_shared_libraries_aix_p (struct gdbarch *gdbarch);
-
-typedef ULONGEST (gdbarch_core_xfer_shared_libraries_aix_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
-extern ULONGEST gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
-extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_aix_ftype *core_xfer_shared_libraries_aix);
-
-/* How the core target converts a PTID from a core file to a string. */
-
-extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch);
-
-typedef char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
-extern char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid);
-extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str);
-
-/* How the core target extracts the name of a thread from a core file. */
-
-extern int gdbarch_core_thread_name_p (struct gdbarch *gdbarch);
-
-typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, struct thread_info *thr);
-extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr);
-extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name);
-
-/* BFD target to use when generating a core file. */
-
-extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch);
-
-extern const char * gdbarch_gcore_bfd_target (struct gdbarch *gdbarch);
-extern void set_gdbarch_gcore_bfd_target (struct gdbarch *gdbarch, const char * gcore_bfd_target);
-
-/* If the elements of C++ vtables are in-place function descriptors rather
- than normal function pointers (which may point to code or a descriptor),
- set this to one. */
-
-extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
-extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
-
-/* Set if the least significant bit of the delta is used instead of the least
- significant bit of the pfn for pointers to virtual member functions. */
-
-extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
-extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
-
-/* Advance PC to next instruction in order to skip a permanent breakpoint. */
-
-typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
-extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
-extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
-
-/* The maximum length of an instruction on this architecture in bytes. */
-
-extern int gdbarch_max_insn_length_p (struct gdbarch *gdbarch);
-
-extern ULONGEST gdbarch_max_insn_length (struct gdbarch *gdbarch);
-extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_insn_length);
-
-/* Copy the instruction at FROM to TO, and make any adjustments
- necessary to single-step it at that address.
-
- REGS holds the state the thread's registers will have before
- executing the copied instruction; the PC in REGS will refer to FROM,
- not the copy at TO. The caller should update it to point at TO later.
-
- Return a pointer to data of the architecture's choice to be passed
- to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
- the instruction's effects have been completely simulated, with the
- resulting state written back to REGS.
-
- For a general explanation of displaced stepping and how GDB uses it,
- see the comments in infrun.c.
-
- The TO area is only guaranteed to have space for
- gdbarch_max_insn_length (arch) bytes, so this function must not
- write more bytes than that to that area.
-
- If you do not provide this function, GDB assumes that the
- architecture does not support displaced stepping.
-
- If your architecture doesn't need to adjust instructions before
- single-stepping them, consider using simple_displaced_step_copy_insn
- here.
-
- If the instruction cannot execute out of line, return NULL. The
- core falls back to stepping past the instruction in-line instead in
- that case. */
-
-extern int gdbarch_displaced_step_copy_insn_p (struct gdbarch *gdbarch);
-
-typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
-extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
-extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn);
-
-/* Return true if GDB should use hardware single-stepping to execute
- the displaced instruction identified by CLOSURE. If false,
- GDB will simply restart execution at the displaced instruction
- location, and it is up to the target to ensure GDB will receive
- control again (e.g. by placing a software breakpoint instruction
- into the displaced instruction buffer).
-
- The default implementation returns false on all targets that
- provide a gdbarch_software_single_step routine, and true otherwise. */
-
-typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
-extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
-extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep);
-
-/* Fix up the state resulting from successfully single-stepping a
- displaced instruction, to give the result we would have gotten from
- stepping the instruction in its original location.
-
- REGS is the register state resulting from single-stepping the
- displaced instruction.
-
- CLOSURE is the result from the matching call to
- gdbarch_displaced_step_copy_insn.
-
- If you provide gdbarch_displaced_step_copy_insn.but not this
- function, then GDB assumes that no fixup is needed after
- single-stepping the instruction.
-
- For a general explanation of displaced stepping and how GDB uses it,
- see the comments in infrun.c. */
-
-extern int gdbarch_displaced_step_fixup_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
-extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs);
-extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup);
-
-/* Free a closure returned by gdbarch_displaced_step_copy_insn.
-
- If you provide gdbarch_displaced_step_copy_insn, you must provide
- this function as well.
-
- If your architecture uses closures that don't need to be freed, then
- you can use simple_displaced_step_free_closure here.
-
- For a general explanation of displaced stepping and how GDB uses it,
- see the comments in infrun.c. */
-
-typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
-extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure);
-extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure);
-
-/* Return the address of an appropriate place to put displaced
- instructions while we step over them. There need only be one such
- place, since we're only stepping one thread over a breakpoint at a
- time.
-
- For a general explanation of displaced stepping and how GDB uses it,
- see the comments in infrun.c. */
-
-typedef CORE_ADDR (gdbarch_displaced_step_location_ftype) (struct gdbarch *gdbarch);
-extern CORE_ADDR gdbarch_displaced_step_location (struct gdbarch *gdbarch);
-extern void set_gdbarch_displaced_step_location (struct gdbarch *gdbarch, gdbarch_displaced_step_location_ftype *displaced_step_location);
-
-/* Relocate an instruction to execute at a different address. OLDLOC
- is the address in the inferior memory where the instruction to
- relocate is currently at. On input, TO points to the destination
- where we want the instruction to be copied (and possibly adjusted)
- to. On output, it points to one past the end of the resulting
- instruction(s). The effect of executing the instruction at TO shall
- be the same as if executing it at FROM. For example, call
- instructions that implicitly push the return address on the stack
- should be adjusted to return to the instruction after OLDLOC;
- relative branches, and other PC-relative instructions need the
- offset adjusted; etc. */
-
-extern int gdbarch_relocate_instruction_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_relocate_instruction_ftype) (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
-extern void gdbarch_relocate_instruction (struct gdbarch *gdbarch, CORE_ADDR *to, CORE_ADDR from);
-extern void set_gdbarch_relocate_instruction (struct gdbarch *gdbarch, gdbarch_relocate_instruction_ftype *relocate_instruction);
-
-/* Refresh overlay mapped state for section OSECT. */
-
-extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
-extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
-extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
-
-extern int gdbarch_core_read_description_p (struct gdbarch *gdbarch);
-
-typedef const struct target_desc * (gdbarch_core_read_description_ftype) (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
-extern const struct target_desc * gdbarch_core_read_description (struct gdbarch *gdbarch, struct target_ops *target, bfd *abfd);
-extern void set_gdbarch_core_read_description (struct gdbarch *gdbarch, gdbarch_core_read_description_ftype *core_read_description);
-
-/* Handle special encoding of static variables in stabs debug info. */
-
-extern int gdbarch_static_transform_name_p (struct gdbarch *gdbarch);
-
-typedef const char * (gdbarch_static_transform_name_ftype) (const char *name);
-extern const char * gdbarch_static_transform_name (struct gdbarch *gdbarch, const char *name);
-extern void set_gdbarch_static_transform_name (struct gdbarch *gdbarch, gdbarch_static_transform_name_ftype *static_transform_name);
-
-/* Set if the address in N_SO or N_FUN stabs may be zero. */
-
-extern int gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch);
-extern void set_gdbarch_sofun_address_maybe_missing (struct gdbarch *gdbarch, int sofun_address_maybe_missing);
-
-/* Parse the instruction at ADDR storing in the record execution log
- the registers REGCACHE and memory ranges that will be affected when
- the instruction executes, along with their current values.
- Return -1 if something goes wrong, 0 otherwise. */
-
-extern int gdbarch_process_record_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_process_record_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
-extern int gdbarch_process_record (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
-extern void set_gdbarch_process_record (struct gdbarch *gdbarch, gdbarch_process_record_ftype *process_record);
-
-/* Save process state after a signal.
- Return -1 if something goes wrong, 0 otherwise. */
-
-extern int gdbarch_process_record_signal_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_process_record_signal_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
-extern int gdbarch_process_record_signal (struct gdbarch *gdbarch, struct regcache *regcache, enum gdb_signal signal);
-extern void set_gdbarch_process_record_signal (struct gdbarch *gdbarch, gdbarch_process_record_signal_ftype *process_record_signal);
-
-/* Signal translation: translate inferior's signal (target's) number
- into GDB's representation. The implementation of this method must
- be host independent. IOW, don't rely on symbols of the NAT_FILE
- header (the nm-*.h files), the host <signal.h> header, or similar
- headers. This is mainly used when cross-debugging core files ---
- "Live" targets hide the translation behind the target interface
- (target_wait, target_resume, etc.). */
-
-extern int gdbarch_gdb_signal_from_target_p (struct gdbarch *gdbarch);
-
-typedef enum gdb_signal (gdbarch_gdb_signal_from_target_ftype) (struct gdbarch *gdbarch, int signo);
-extern enum gdb_signal gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, int signo);
-extern void set_gdbarch_gdb_signal_from_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_from_target_ftype *gdb_signal_from_target);
-
-/* Signal translation: translate the GDB's internal signal number into
- the inferior's signal (target's) representation. The implementation
- of this method must be host independent. IOW, don't rely on symbols
- of the NAT_FILE header (the nm-*.h files), the host <signal.h>
- header, or similar headers.
- Return the target signal number if found, or -1 if the GDB internal
- signal number is invalid. */
-
-extern int gdbarch_gdb_signal_to_target_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_gdb_signal_to_target_ftype) (struct gdbarch *gdbarch, enum gdb_signal signal);
-extern int gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, enum gdb_signal signal);
-extern void set_gdbarch_gdb_signal_to_target (struct gdbarch *gdbarch, gdbarch_gdb_signal_to_target_ftype *gdb_signal_to_target);
-
-/* Extra signal info inspection.
-
- Return a type suitable to inspect extra signal information. */
-
-extern int gdbarch_get_siginfo_type_p (struct gdbarch *gdbarch);
-
-typedef struct type * (gdbarch_get_siginfo_type_ftype) (struct gdbarch *gdbarch);
-extern struct type * gdbarch_get_siginfo_type (struct gdbarch *gdbarch);
-extern void set_gdbarch_get_siginfo_type (struct gdbarch *gdbarch, gdbarch_get_siginfo_type_ftype *get_siginfo_type);
-
-/* Record architecture-specific information from the symbol table. */
-
-extern int gdbarch_record_special_symbol_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_record_special_symbol_ftype) (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
-extern void gdbarch_record_special_symbol (struct gdbarch *gdbarch, struct objfile *objfile, asymbol *sym);
-extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_record_special_symbol_ftype *record_special_symbol);
-
-/* Function for the 'catch syscall' feature.
- Get architecture-specific system calls information from registers. */
-
-extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch);
-
-typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid);
-extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid);
-extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number);
-
-/* The filename of the XML syscall for this architecture. */
-
-extern const char * gdbarch_xml_syscall_file (struct gdbarch *gdbarch);
-extern void set_gdbarch_xml_syscall_file (struct gdbarch *gdbarch, const char * xml_syscall_file);
-
-/* Information about system calls from this architecture */
-
-extern struct syscalls_info * gdbarch_syscalls_info (struct gdbarch *gdbarch);
-extern void set_gdbarch_syscalls_info (struct gdbarch *gdbarch, struct syscalls_info * syscalls_info);
-
-/* SystemTap related fields and functions.
- A NULL-terminated array of prefixes used to mark an integer constant
- on the architecture's assembly.
- For example, on x86 integer constants are written as:
-
- $10 ;; integer constant 10
-
- in this case, this prefix would be the character `$'. */
-
-extern const char *const * gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_integer_prefixes (struct gdbarch *gdbarch, const char *const * stap_integer_prefixes);
-
-/* A NULL-terminated array of suffixes used to mark an integer constant
- on the architecture's assembly. */
-
-extern const char *const * gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_integer_suffixes (struct gdbarch *gdbarch, const char *const * stap_integer_suffixes);
-
-/* A NULL-terminated array of prefixes used to mark a register name on
- the architecture's assembly.
- For example, on x86 the register name is written as:
-
- %eax ;; register eax
-
- in this case, this prefix would be the character `%'. */
-
-extern const char *const * gdbarch_stap_register_prefixes (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_register_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_prefixes);
-
-/* A NULL-terminated array of suffixes used to mark a register name on
- the architecture's assembly. */
-
-extern const char *const * gdbarch_stap_register_suffixes (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_register_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_suffixes);
-
-/* A NULL-terminated array of prefixes used to mark a register
- indirection on the architecture's assembly.
- For example, on x86 the register indirection is written as:
-
- (%eax) ;; indirecting eax
-
- in this case, this prefix would be the charater `('.
-
- Please note that we use the indirection prefix also for register
- displacement, e.g., `4(%eax)' on x86. */
-
-extern const char *const * gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_register_indirection_prefixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_prefixes);
-
-/* A NULL-terminated array of suffixes used to mark a register
- indirection on the architecture's assembly.
- For example, on x86 the register indirection is written as:
-
- (%eax) ;; indirecting eax
-
- in this case, this prefix would be the charater `)'.
-
- Please note that we use the indirection suffix also for register
- displacement, e.g., `4(%eax)' on x86. */
-
-extern const char *const * gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_register_indirection_suffixes (struct gdbarch *gdbarch, const char *const * stap_register_indirection_suffixes);
-
-/* Prefix(es) used to name a register using GDB's nomenclature.
-
- For example, on PPC a register is represented by a number in the assembly
- language (e.g., `10' is the 10th general-purpose register). However,
- inside GDB this same register has an `r' appended to its name, so the 10th
- register would be represented as `r10' internally. */
-
-extern const char * gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_gdb_register_prefix (struct gdbarch *gdbarch, const char * stap_gdb_register_prefix);
-
-/* Suffix used to name a register using GDB's nomenclature. */
-
-extern const char * gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch);
-extern void set_gdbarch_stap_gdb_register_suffix (struct gdbarch *gdbarch, const char * stap_gdb_register_suffix);
-
-/* Check if S is a single operand.
-
- Single operands can be:
- - Literal integers, e.g. `$10' on x86
- - Register access, e.g. `%eax' on x86
- - Register indirection, e.g. `(%eax)' on x86
- - Register displacement, e.g. `4(%eax)' on x86
-
- This function should check for these patterns on the string
- and return 1 if some were found, or zero otherwise. Please try to match
- as much info as you can from the string, i.e., if you have to match
- something like `(%', do not match just the `('. */
-
-extern int gdbarch_stap_is_single_operand_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_stap_is_single_operand_ftype) (struct gdbarch *gdbarch, const char *s);
-extern int gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, const char *s);
-extern void set_gdbarch_stap_is_single_operand (struct gdbarch *gdbarch, gdbarch_stap_is_single_operand_ftype *stap_is_single_operand);
-
-/* Function used to handle a "special case" in the parser.
-
- A "special case" is considered to be an unknown token, i.e., a token
- that the parser does not know how to parse. A good example of special
- case would be ARM's register displacement syntax:
-
- [R0, #4] ;; displacing R0 by 4
-
- Since the parser assumes that a register displacement is of the form:
-
- <number> <indirection_prefix> <register_name> <indirection_suffix>
-
- it means that it will not be able to recognize and parse this odd syntax.
- Therefore, we should add a special case function that will handle this token.
-
- This function should generate the proper expression form of the expression
- using GDB's internal expression mechanism (e.g., `write_exp_elt_opcode'
- and so on). It should also return 1 if the parsing was successful, or zero
- if the token was not recognized as a special token (in this case, returning
- zero means that the special parser is deferring the parsing to the generic
- parser), and should advance the buffer pointer (p->arg). */
-
-extern int gdbarch_stap_parse_special_token_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_stap_parse_special_token_ftype) (struct gdbarch *gdbarch, struct stap_parse_info *p);
-extern int gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, struct stap_parse_info *p);
-extern void set_gdbarch_stap_parse_special_token (struct gdbarch *gdbarch, gdbarch_stap_parse_special_token_ftype *stap_parse_special_token);
-
-/* DTrace related functions.
- The expression to compute the NARTGth+1 argument to a DTrace USDT probe.
- NARG must be >= 0. */
-
-extern int gdbarch_dtrace_parse_probe_argument_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_dtrace_parse_probe_argument_ftype) (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
-extern void gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, struct parser_state *pstate, int narg);
-extern void set_gdbarch_dtrace_parse_probe_argument (struct gdbarch *gdbarch, gdbarch_dtrace_parse_probe_argument_ftype *dtrace_parse_probe_argument);
-
-/* True if the given ADDR does not contain the instruction sequence
- corresponding to a disabled DTrace is-enabled probe. */
-
-extern int gdbarch_dtrace_probe_is_enabled_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_dtrace_probe_is_enabled_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern int gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_dtrace_probe_is_enabled (struct gdbarch *gdbarch, gdbarch_dtrace_probe_is_enabled_ftype *dtrace_probe_is_enabled);
-
-/* Enable a DTrace is-enabled probe at ADDR. */
-
-extern int gdbarch_dtrace_enable_probe_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_dtrace_enable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_dtrace_enable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_enable_probe_ftype *dtrace_enable_probe);
-
-/* Disable a DTrace is-enabled probe at ADDR. */
-
-extern int gdbarch_dtrace_disable_probe_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_dtrace_disable_probe_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_dtrace_disable_probe (struct gdbarch *gdbarch, gdbarch_dtrace_disable_probe_ftype *dtrace_disable_probe);
-
-/* True if the list of shared libraries is one and only for all
- processes, as opposed to a list of shared libraries per inferior.
- This usually means that all processes, although may or may not share
- an address space, will see the same set of symbols at the same
- addresses. */
-
-extern int gdbarch_has_global_solist (struct gdbarch *gdbarch);
-extern void set_gdbarch_has_global_solist (struct gdbarch *gdbarch, int has_global_solist);
-
-/* On some targets, even though each inferior has its own private
- address space, the debug interface takes care of making breakpoints
- visible to all address spaces automatically. For such cases,
- this property should be set to true. */
-
-extern int gdbarch_has_global_breakpoints (struct gdbarch *gdbarch);
-extern void set_gdbarch_has_global_breakpoints (struct gdbarch *gdbarch, int has_global_breakpoints);
-
-/* True if inferiors share an address space (e.g., uClinux). */
-
-typedef int (gdbarch_has_shared_address_space_ftype) (struct gdbarch *gdbarch);
-extern int gdbarch_has_shared_address_space (struct gdbarch *gdbarch);
-extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbarch_has_shared_address_space_ftype *has_shared_address_space);
-
-/* True if a fast tracepoint can be set at an address. */
-
-typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
-extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg);
-extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at);
-
-/* Guess register state based on tracepoint location. Used for tracepoints
- where no registers have been collected, but there's only one location,
- allowing us to guess the PC value, and perhaps some other registers.
- On entry, regcache has all registers marked as unavailable. */
-
-typedef void (gdbarch_guess_tracepoint_registers_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
-extern void gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr);
-extern void set_gdbarch_guess_tracepoint_registers (struct gdbarch *gdbarch, gdbarch_guess_tracepoint_registers_ftype *guess_tracepoint_registers);
-
-/* Return the "auto" target charset. */
-
-typedef const char * (gdbarch_auto_charset_ftype) (void);
-extern const char * gdbarch_auto_charset (struct gdbarch *gdbarch);
-extern void set_gdbarch_auto_charset (struct gdbarch *gdbarch, gdbarch_auto_charset_ftype *auto_charset);
-
-/* Return the "auto" target wide charset. */
-
-typedef const char * (gdbarch_auto_wide_charset_ftype) (void);
-extern const char * gdbarch_auto_wide_charset (struct gdbarch *gdbarch);
-extern void set_gdbarch_auto_wide_charset (struct gdbarch *gdbarch, gdbarch_auto_wide_charset_ftype *auto_wide_charset);
-
-/* If non-empty, this is a file extension that will be opened in place
- of the file extension reported by the shared library list.
-
- This is most useful for toolchains that use a post-linker tool,
- where the names of the files run on the target differ in extension
- compared to the names of the files GDB should load for debug info. */
-
-extern const char * gdbarch_solib_symbols_extension (struct gdbarch *gdbarch);
-extern void set_gdbarch_solib_symbols_extension (struct gdbarch *gdbarch, const char * solib_symbols_extension);
-
-/* If true, the target OS has DOS-based file system semantics. That
- is, absolute paths include a drive name, and the backslash is
- considered a directory separator. */
-
-extern int gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch);
-extern void set_gdbarch_has_dos_based_file_system (struct gdbarch *gdbarch, int has_dos_based_file_system);
-
-/* Generate bytecodes to collect the return address in a frame.
- Since the bytecodes run on the target, possibly with GDB not even
- connected, the full unwinding machinery is not available, and
- typically this function will issue bytecodes for one or more likely
- places that the return address may be found. */
-
-typedef void (gdbarch_gen_return_address_ftype) (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
-extern void gdbarch_gen_return_address (struct gdbarch *gdbarch, struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope);
-extern void set_gdbarch_gen_return_address (struct gdbarch *gdbarch, gdbarch_gen_return_address_ftype *gen_return_address);
-
-/* Implement the "info proc" command. */
-
-extern int gdbarch_info_proc_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
-extern void gdbarch_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
-extern void set_gdbarch_info_proc (struct gdbarch *gdbarch, gdbarch_info_proc_ftype *info_proc);
-
-/* Implement the "info proc" command for core files. Noe that there
- are two "info_proc"-like methods on gdbarch -- one for core files,
- one for live targets. */
-
-extern int gdbarch_core_info_proc_p (struct gdbarch *gdbarch);
-
-typedef void (gdbarch_core_info_proc_ftype) (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
-extern void gdbarch_core_info_proc (struct gdbarch *gdbarch, const char *args, enum info_proc_what what);
-extern void set_gdbarch_core_info_proc (struct gdbarch *gdbarch, gdbarch_core_info_proc_ftype *core_info_proc);
-
-/* Iterate over all objfiles in the order that makes the most sense
- for the architecture to make global symbol searches.
-
- CB is a callback function where OBJFILE is the objfile to be searched,
- and CB_DATA a pointer to user-defined data (the same data that is passed
- when calling this gdbarch method). The iteration stops if this function
- returns nonzero.
-
- CB_DATA is a pointer to some user-defined data to be passed to
- the callback.
-
- If not NULL, CURRENT_OBJFILE corresponds to the objfile being
- inspected when the symbol search was requested. */
-
-typedef void (gdbarch_iterate_over_objfiles_in_search_order_ftype) (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
-extern void gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile);
-extern void set_gdbarch_iterate_over_objfiles_in_search_order (struct gdbarch *gdbarch, gdbarch_iterate_over_objfiles_in_search_order_ftype *iterate_over_objfiles_in_search_order);
-
-/* Ravenscar arch-dependent ops. */
-
-extern struct ravenscar_arch_ops * gdbarch_ravenscar_ops (struct gdbarch *gdbarch);
-extern void set_gdbarch_ravenscar_ops (struct gdbarch *gdbarch, struct ravenscar_arch_ops * ravenscar_ops);
-
-/* Return non-zero if the instruction at ADDR is a call; zero otherwise. */
-
-typedef int (gdbarch_insn_is_call_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern int gdbarch_insn_is_call (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_insn_is_call (struct gdbarch *gdbarch, gdbarch_insn_is_call_ftype *insn_is_call);
-
-/* Return non-zero if the instruction at ADDR is a return; zero otherwise. */
-
-typedef int (gdbarch_insn_is_ret_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern int gdbarch_insn_is_ret (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_insn_is_ret (struct gdbarch *gdbarch, gdbarch_insn_is_ret_ftype *insn_is_ret);
-
-/* Return non-zero if the instruction at ADDR is a jump; zero otherwise. */
-
-typedef int (gdbarch_insn_is_jump_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern int gdbarch_insn_is_jump (struct gdbarch *gdbarch, CORE_ADDR addr);
-extern void set_gdbarch_insn_is_jump (struct gdbarch *gdbarch, gdbarch_insn_is_jump_ftype *insn_is_jump);
-
-/* Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
- Return 0 if *READPTR is already at the end of the buffer.
- Return -1 if there is insufficient buffer for a whole entry.
- Return 1 if an entry was read into *TYPEP and *VALP. */
-
-extern int gdbarch_auxv_parse_p (struct gdbarch *gdbarch);
-
-typedef int (gdbarch_auxv_parse_ftype) (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
-extern int gdbarch_auxv_parse (struct gdbarch *gdbarch, gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp);
-extern void set_gdbarch_auxv_parse (struct gdbarch *gdbarch, gdbarch_auxv_parse_ftype *auxv_parse);
-
-/* Print the description of a single auxv entry described by TYPE and VAL
- to FILE. */
-
-typedef void (gdbarch_print_auxv_entry_ftype) (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
-extern void gdbarch_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, CORE_ADDR type, CORE_ADDR val);
-extern void set_gdbarch_print_auxv_entry (struct gdbarch *gdbarch, gdbarch_print_auxv_entry_ftype *print_auxv_entry);
-
-/* Find the address range of the current inferior's vsyscall/vDSO, and
- write it to *RANGE. If the vsyscall's length can't be determined, a
- range with zero length is returned. Returns true if the vsyscall is
- found, false otherwise. */
-
-typedef int (gdbarch_vsyscall_range_ftype) (struct gdbarch *gdbarch, struct mem_range *range);
-extern int gdbarch_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);
-extern void set_gdbarch_vsyscall_range (struct gdbarch *gdbarch, gdbarch_vsyscall_range_ftype *vsyscall_range);
-
-/* Allocate SIZE bytes of PROT protected page aligned memory in inferior.
- PROT has GDB_MMAP_PROT_* bitmask format.
- Throw an error if it is not possible. Returned address is always valid. */
-
-typedef CORE_ADDR (gdbarch_infcall_mmap_ftype) (CORE_ADDR size, unsigned prot);
-extern CORE_ADDR gdbarch_infcall_mmap (struct gdbarch *gdbarch, CORE_ADDR size, unsigned prot);
-extern void set_gdbarch_infcall_mmap (struct gdbarch *gdbarch, gdbarch_infcall_mmap_ftype *infcall_mmap);
-
-/* Deallocate SIZE bytes of memory at ADDR in inferior from gdbarch_infcall_mmap.
- Print a warning if it is not possible. */
-
-typedef void (gdbarch_infcall_munmap_ftype) (CORE_ADDR addr, CORE_ADDR size);
-extern void gdbarch_infcall_munmap (struct gdbarch *gdbarch, CORE_ADDR addr, CORE_ADDR size);
-extern void set_gdbarch_infcall_munmap (struct gdbarch *gdbarch, gdbarch_infcall_munmap_ftype *infcall_munmap);
-
-/* Return string (caller has to use xfree for it) with options for GCC
- to produce code for this target, typically "-m64", "-m32" or "-m31".
- These options are put before CU's DW_AT_producer compilation options so that
- they can override it. Method may also return NULL. */
-
-typedef char * (gdbarch_gcc_target_options_ftype) (struct gdbarch *gdbarch);
-extern char * gdbarch_gcc_target_options (struct gdbarch *gdbarch);
-extern void set_gdbarch_gcc_target_options (struct gdbarch *gdbarch, gdbarch_gcc_target_options_ftype *gcc_target_options);
-
-/* Return a regular expression that matches names used by this
- architecture in GNU configury triplets. The result is statically
- allocated and must not be freed. The default implementation simply
- returns the BFD architecture name, which is correct in nearly every
- case. */
-
-typedef const char * (gdbarch_gnu_triplet_regexp_ftype) (struct gdbarch *gdbarch);
-extern const char * gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch);
-extern void set_gdbarch_gnu_triplet_regexp (struct gdbarch *gdbarch, gdbarch_gnu_triplet_regexp_ftype *gnu_triplet_regexp);
-
-/* Return the size in 8-bit bytes of an addressable memory unit on this
- architecture. This corresponds to the number of 8-bit bytes associated to
- each address in memory. */