| /* Dynamic architecture support for GDB, the GNU debugger. |
| |
| Copyright (C) 1998-2000, 2002-2004, 2007-2012 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 3 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, 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; |
| |
| /* 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); |
| |
| /* Default implementation of gdbarch_displaced_hw_singlestep. */ |
| extern int |
| default_displaced_step_hw_singlestep (struct gdbarch *, |
| struct displaced_step_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); |
| |
| /* 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; |
| |
| /* No-op conversion of reg to regnum. */ |
| |
| extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg); |
| |
| /* 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 (struct gdbarch *gdbarch, int regnum); |
| |
| /* 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 gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer; |
| |
| extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame, |
| CORE_ADDR pc); |
| |
| extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch, |
| CORE_ADDR pc); |
| |
| extern int generic_in_solib_return_trampoline (struct gdbarch *gdbarch, |
| CORE_ADDR pc, const char *name); |
| |
| extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, |
| CORE_ADDR pc); |
| |
| /* By default, registers are not convertible. */ |
| extern int generic_convert_register_p (struct gdbarch *gdbarch, 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); |
| |
| int default_remote_register_number (struct gdbarch *gdbarch, |
| int regno); |
| |
| /* 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 (struct gdbarch *gdbarch, int regnum); |
| |
| /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte |
| order was explicitly selected. */ |
| extern enum bfd_endian selected_byte_order (void); |
| |
| /* 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. "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); |
| |
| /* Return "current" architecture. If the target is running, this is the |
| architecture of the selected frame. Otherwise, the "current" architecture |
| defaults to the target architecture. |
| |
| This function should normally be called solely by the command interpreter |
| routines to determine the architecture to execute a command in. */ |
| extern struct gdbarch *get_current_arch (void); |
| |
| extern int default_has_shared_address_space (struct gdbarch *); |
| |
| extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch, |
| CORE_ADDR addr, |
| int *isize, char **msg); |
| |
| extern void default_remote_breakpoint_from_pc (struct gdbarch *, |
| CORE_ADDR *pcptr, int *kindptr); |
| |
| extern void default_gen_return_address (struct gdbarch *gdbarch, |
| struct agent_expr *ax, |
| struct axs_value *value, |
| CORE_ADDR scope); |
| |
| extern const char *default_auto_charset (void); |
| extern const char *default_auto_wide_charset (void); |
| |
| extern int default_return_in_first_hidden_param_p (struct gdbarch *, |
| struct type *); |
| #endif |