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9a3c826307
Note: I needed to split this patch in two, otherwise it's too big for the mailing list. This patch adds explicit casts to situations where a void pointer is assigned to a pointer to the "real" type. Building in C++ mode requires those assignments to use an explicit cast. This includes, for example: - callback arguments (cleanups, comparison functions, ...) - data attached to some object (objfile, program space, etc) in the form of a void pointer - "user data" passed to some function This patch comes from the commit "(mostly) auto-generated patch to insert casts needed for C++", taken from Pedro's C++ branch. Only files built on x86 with --enable-targets=all are modified, so the native files for other arches will need to be dealt with separately. I built-tested this with --enable-targets=all and reg-tested. To my surprise, a test case (selftest.exp) had to be adjusted. Here's the ChangeLog entry. Again, this was relatively quick to make despite the length, thanks to David Malcom's script, although I don't believe it's very useful information in that particular case... gdb/ChangeLog: * aarch64-tdep.c (aarch64_make_prologue_cache): Add cast(s). (aarch64_make_stub_cache): Likewise. (value_of_aarch64_user_reg): Likewise. * ada-lang.c (ada_inferior_data_cleanup): Likewise. (get_ada_inferior_data): Likewise. (get_ada_pspace_data): Likewise. (ada_pspace_data_cleanup): Likewise. (ada_complete_symbol_matcher): Likewise. (ada_exc_search_name_matches): Likewise. * ada-tasks.c (get_ada_tasks_pspace_data): Likewise. (get_ada_tasks_inferior_data): Likewise. * addrmap.c (addrmap_mutable_foreach_worker): Likewise. (splay_obstack_alloc): Likewise. (splay_obstack_free): Likewise. * alpha-linux-tdep.c (alpha_linux_supply_gregset): Likewise. (alpha_linux_collect_gregset): Likewise. (alpha_linux_supply_fpregset): Likewise. (alpha_linux_collect_fpregset): Likewise. * alpha-mdebug-tdep.c (alpha_mdebug_frame_unwind_cache): Likewise. * alpha-tdep.c (alpha_lds): Likewise. (alpha_sts): Likewise. (alpha_sigtramp_frame_unwind_cache): Likewise. (alpha_heuristic_frame_unwind_cache): Likewise. (alpha_supply_int_regs): Likewise. (alpha_fill_int_regs): Likewise. (alpha_supply_fp_regs): Likewise. (alpha_fill_fp_regs): Likewise. * alphanbsd-tdep.c (alphanbsd_supply_fpregset): Likewise. (alphanbsd_aout_supply_gregset): Likewise. (alphanbsd_supply_gregset): Likewise. * amd64-linux-tdep.c (amd64_linux_init_abi): Likewise. (amd64_x32_linux_init_abi): Likewise. * amd64-nat.c (amd64_supply_native_gregset): Likewise. (amd64_collect_native_gregset): Likewise. * amd64-tdep.c (amd64_frame_cache): Likewise. (amd64_sigtramp_frame_cache): Likewise. (amd64_epilogue_frame_cache): Likewise. (amd64_supply_fxsave): Likewise. (amd64_supply_xsave): Likewise. (amd64_collect_fxsave): Likewise. (amd64_collect_xsave): Likewise. * amd64-windows-tdep.c (amd64_windows_frame_cache): Likewise. * amd64obsd-tdep.c (amd64obsd_trapframe_cache): Likewise. * arm-linux-tdep.c (arm_linux_supply_gregset): Likewise. (arm_linux_collect_gregset): Likewise. (arm_linux_supply_nwfpe): Likewise. (arm_linux_collect_nwfpe): Likewise. (arm_linux_supply_vfp): Likewise. (arm_linux_collect_vfp): Likewise. * arm-tdep.c (arm_find_mapping_symbol): Likewise. (arm_prologue_unwind_stop_reason): Likewise. (arm_prologue_this_id): Likewise. (arm_prologue_prev_register): Likewise. (arm_exidx_data_free): Likewise. (arm_find_exidx_entry): Likewise. (arm_stub_this_id): Likewise. (arm_m_exception_this_id): Likewise. (arm_m_exception_prev_register): Likewise. (arm_normal_frame_base): Likewise. (gdb_print_insn_arm): Likewise. (arm_objfile_data_free): Likewise. (arm_record_special_symbol): Likewise. (value_of_arm_user_reg): Likewise. * armbsd-tdep.c (armbsd_supply_fpregset): Likewise. (armbsd_supply_gregset): Likewise. * auto-load.c (auto_load_pspace_data_cleanup): Likewise. (get_auto_load_pspace_data): Likewise. (hash_loaded_script_entry): Likewise. (eq_loaded_script_entry): Likewise. (clear_section_scripts): Likewise. (collect_matching_scripts): Likewise. * auxv.c (auxv_inferior_data_cleanup): Likewise. (get_auxv_inferior_data): Likewise. * avr-tdep.c (avr_frame_unwind_cache): Likewise. * ax-general.c (do_free_agent_expr_cleanup): Likewise. * bfd-target.c (target_bfd_xfer_partial): Likewise. (target_bfd_xclose): Likewise. (target_bfd_get_section_table): Likewise. * bfin-tdep.c (bfin_frame_cache): Likewise. * block.c (find_block_in_blockvector): Likewise. (call_site_for_pc): Likewise. (block_find_non_opaque_type_preferred): Likewise. * break-catch-sig.c (signal_catchpoint_insert_location): Likewise. (signal_catchpoint_remove_location): Likewise. (signal_catchpoint_breakpoint_hit): Likewise. (signal_catchpoint_print_one): Likewise. (signal_catchpoint_print_mention): Likewise. (signal_catchpoint_print_recreate): Likewise. * break-catch-syscall.c (get_catch_syscall_inferior_data): Likewise. * breakpoint.c (do_cleanup_counted_command_line): Likewise. (bp_location_compare_addrs): Likewise. (get_first_locp_gte_addr): Likewise. (check_tracepoint_command): Likewise. (do_map_commands_command): Likewise. (get_breakpoint_objfile_data): Likewise. (free_breakpoint_probes): Likewise. (do_captured_breakpoint_query): Likewise. (compare_breakpoints): Likewise. (bp_location_compare): Likewise. (bpstat_remove_breakpoint_callback): Likewise. (do_delete_breakpoint_cleanup): Likewise. * bsd-uthread.c (bsd_uthread_set_supply_uthread): Likewise. (bsd_uthread_set_collect_uthread): Likewise. (bsd_uthread_activate): Likewise. (bsd_uthread_fetch_registers): Likewise. (bsd_uthread_store_registers): Likewise. * btrace.c (check_xml_btrace_version): Likewise. (parse_xml_btrace_block): Likewise. (parse_xml_btrace_pt_config_cpu): Likewise. (parse_xml_btrace_pt_raw): Likewise. (parse_xml_btrace_pt): Likewise. (parse_xml_btrace_conf_bts): Likewise. (parse_xml_btrace_conf_pt): Likewise. (do_btrace_data_cleanup): Likewise. * c-typeprint.c (find_typedef_for_canonicalize): Likewise. * charset.c (cleanup_iconv): Likewise. (do_cleanup_iterator): Likewise. * cli-out.c (cli_uiout_dtor): Likewise. (cli_table_begin): Likewise. (cli_table_body): Likewise. (cli_table_end): Likewise. (cli_table_header): Likewise. (cli_begin): Likewise. (cli_end): Likewise. (cli_field_int): Likewise. (cli_field_skip): Likewise. (cli_field_string): Likewise. (cli_field_fmt): Likewise. (cli_spaces): Likewise. (cli_text): Likewise. (cli_message): Likewise. (cli_wrap_hint): Likewise. (cli_flush): Likewise. (cli_redirect): Likewise. (out_field_fmt): Likewise. (field_separator): Likewise. (cli_out_set_stream): Likewise. * cli/cli-cmds.c (compare_symtabs): Likewise. * cli/cli-dump.c (call_dump_func): Likewise. (restore_section_callback): Likewise. * cli/cli-script.c (clear_hook_in_cleanup): Likewise. (do_restore_user_call_depth): Likewise. (do_free_command_lines_cleanup): Likewise. * coff-pe-read.c (get_section_vmas): Likewise. (pe_as16): Likewise. (pe_as32): Likewise. * coffread.c (coff_symfile_read): Likewise. * common/agent.c (agent_look_up_symbols): Likewise. * common/filestuff.c (do_close_cleanup): Likewise. * common/format.c (free_format_pieces_cleanup): Likewise. * common/vec.c (vec_o_reserve): Likewise. * compile/compile-c-support.c (print_one_macro): Likewise. * compile/compile-c-symbols.c (hash_symbol_error): Likewise. (eq_symbol_error): Likewise. (del_symbol_error): Likewise. (error_symbol_once): Likewise. (gcc_convert_symbol): Likewise. (gcc_symbol_address): Likewise. (hash_symname): Likewise. (eq_symname): Likewise. * compile/compile-c-types.c (hash_type_map_instance): Likewise. (eq_type_map_instance): Likewise. (insert_type): Likewise. (convert_type): Likewise. * compile/compile-object-load.c (munmap_listp_free_cleanup): Likewise. (setup_sections): Likewise. (link_hash_table_free): Likewise. (copy_sections): Likewise. * compile/compile-object-run.c (do_module_cleanup): Likewise. * compile/compile.c (compile_print_value): Likewise. (do_rmdir): Likewise. (cleanup_compile_instance): Likewise. (cleanup_unlink_file): Likewise. * completer.c (free_completion_tracker): Likewise. * corelow.c (add_to_spuid_list): Likewise. * cp-namespace.c (reset_directive_searched): Likewise. * cp-support.c (reset_directive_searched): Likewise. * cris-tdep.c (cris_sigtramp_frame_unwind_cache): Likewise. (cris_frame_unwind_cache): Likewise. * d-lang.c (builtin_d_type): Likewise. * d-namespace.c (reset_directive_searched): Likewise. * dbxread.c (dbx_free_symfile_info): Likewise. (do_free_bincl_list_cleanup): Likewise. * disasm.c (hash_dis_line_entry): Likewise. (eq_dis_line_entry): Likewise. (dis_asm_print_address): Likewise. (fprintf_disasm): Likewise. (do_ui_file_delete): Likewise. * doublest.c (convert_floatformat_to_doublest): Likewise. * dummy-frame.c (pop_dummy_frame_bpt): Likewise. (dummy_frame_prev_register): Likewise. (dummy_frame_this_id): Likewise. * dwarf2-frame-tailcall.c (cache_hash): Likewise. (cache_eq): Likewise. (cache_find): Likewise. (tailcall_frame_this_id): Likewise. (dwarf2_tailcall_prev_register_first): Likewise. (tailcall_frame_prev_register): Likewise. (tailcall_frame_dealloc_cache): Likewise. (tailcall_frame_prev_arch): Likewise. * dwarf2-frame.c (dwarf2_frame_state_free): Likewise. (dwarf2_frame_set_init_reg): Likewise. (dwarf2_frame_init_reg): Likewise. (dwarf2_frame_set_signal_frame_p): Likewise. (dwarf2_frame_signal_frame_p): Likewise. (dwarf2_frame_set_adjust_regnum): Likewise. (dwarf2_frame_adjust_regnum): Likewise. (clear_pointer_cleanup): Likewise. (dwarf2_frame_cache): Likewise. (find_cie): Likewise. (dwarf2_frame_find_fde): Likewise. * dwarf2expr.c (dwarf_expr_address_type): Likewise. (free_dwarf_expr_context_cleanup): Likewise. * dwarf2loc.c (locexpr_find_frame_base_location): Likewise. (locexpr_get_frame_base): Likewise. (loclist_find_frame_base_location): Likewise. (loclist_get_frame_base): Likewise. (dwarf_expr_dwarf_call): Likewise. (dwarf_expr_get_base_type): Likewise. (dwarf_expr_push_dwarf_reg_entry_value): Likewise. (dwarf_expr_get_obj_addr): Likewise. (entry_data_value_coerce_ref): Likewise. (entry_data_value_copy_closure): Likewise. (entry_data_value_free_closure): Likewise. (get_frame_address_in_block_wrapper): Likewise. (dwarf2_evaluate_property): Likewise. (dwarf2_compile_property_to_c): Likewise. (needs_frame_read_addr_from_reg): Likewise. (needs_frame_get_reg_value): Likewise. (needs_frame_frame_base): Likewise. (needs_frame_frame_cfa): Likewise. (needs_frame_tls_address): Likewise. (needs_frame_dwarf_call): Likewise. (needs_dwarf_reg_entry_value): Likewise. (get_ax_pc): Likewise. (locexpr_read_variable): Likewise. (locexpr_read_variable_at_entry): Likewise. (locexpr_read_needs_frame): Likewise. (locexpr_describe_location): Likewise. (locexpr_tracepoint_var_ref): Likewise. (locexpr_generate_c_location): Likewise. (loclist_read_variable): Likewise. (loclist_read_variable_at_entry): Likewise. (loclist_describe_location): Likewise. (loclist_tracepoint_var_ref): Likewise. (loclist_generate_c_location): Likewise. * dwarf2read.c (line_header_hash_voidp): Likewise. (line_header_eq_voidp): Likewise. (dwarf2_has_info): Likewise. (dwarf2_get_section_info): Likewise. (locate_dwz_sections): Likewise. (hash_file_name_entry): Likewise. (eq_file_name_entry): Likewise. (delete_file_name_entry): Likewise. (dw2_setup): Likewise. (dw2_get_file_names_reader): Likewise. (dw2_find_pc_sect_compunit_symtab): Likewise. (hash_signatured_type): Likewise. (eq_signatured_type): Likewise. (add_signatured_type_cu_to_table): Likewise. (create_debug_types_hash_table): Likewise. (lookup_dwo_signatured_type): Likewise. (lookup_dwp_signatured_type): Likewise. (lookup_signatured_type): Likewise. (hash_type_unit_group): Likewise. (eq_type_unit_group): Likewise. (get_type_unit_group): Likewise. (process_psymtab_comp_unit_reader): Likewise. (sort_tu_by_abbrev_offset): Likewise. (process_skeletonless_type_unit): Likewise. (psymtabs_addrmap_cleanup): Likewise. (dwarf2_read_symtab): Likewise. (psymtab_to_symtab_1): Likewise. (die_hash): Likewise. (die_eq): Likewise. (load_full_comp_unit_reader): Likewise. (reset_die_in_process): Likewise. (free_cu_line_header): Likewise. (handle_DW_AT_stmt_list): Likewise. (hash_dwo_file): Likewise. (eq_dwo_file): Likewise. (hash_dwo_unit): Likewise. (eq_dwo_unit): Likewise. (create_dwo_cu_reader): Likewise. (create_dwo_unit_in_dwp_v1): Likewise. (create_dwo_unit_in_dwp_v2): Likewise. (lookup_dwo_unit_in_dwp): Likewise. (dwarf2_locate_dwo_sections): Likewise. (dwarf2_locate_common_dwp_sections): Likewise. (dwarf2_locate_v2_dwp_sections): Likewise. (hash_dwp_loaded_cutus): Likewise. (eq_dwp_loaded_cutus): Likewise. (lookup_dwo_cutu): Likewise. (abbrev_table_free_cleanup): Likewise. (dwarf2_free_abbrev_table): Likewise. (find_partial_die_in_comp_unit): Likewise. (free_line_header_voidp): Likewise. (follow_die_offset): Likewise. (follow_die_sig_1): Likewise. (free_heap_comp_unit): Likewise. (free_stack_comp_unit): Likewise. (dwarf2_free_objfile): Likewise. (per_cu_offset_and_type_hash): Likewise. (per_cu_offset_and_type_eq): Likewise. (get_die_type_at_offset): Likewise. (partial_die_hash): Likewise. (partial_die_eq): Likewise. (dwarf2_per_objfile_free): Likewise. (hash_strtab_entry): Likewise. (eq_strtab_entry): Likewise. (add_string): Likewise. (hash_symtab_entry): Likewise. (eq_symtab_entry): Likewise. (delete_symtab_entry): Likewise. (cleanup_mapped_symtab): Likewise. (add_indices_to_cpool): Likewise. (hash_psymtab_cu_index): Likewise. (eq_psymtab_cu_index): Likewise. (add_address_entry_worker): Likewise. (unlink_if_set): Likewise. (write_one_signatured_type): Likewise. (save_gdb_index_command): Likewise. * elfread.c (elf_symtab_read): Likewise. (elf_gnu_ifunc_cache_hash): Likewise. (elf_gnu_ifunc_cache_eq): Likewise. (elf_gnu_ifunc_record_cache): Likewise. (elf_gnu_ifunc_resolve_by_cache): Likewise. (elf_get_probes): Likewise. (probe_key_free): Likewise. * f-lang.c (builtin_f_type): Likewise. * frame-base.c (frame_base_append_sniffer): Likewise. (frame_base_set_default): Likewise. (frame_base_find_by_frame): Likewise. * frame-unwind.c (frame_unwind_prepend_unwinder): Likewise. (frame_unwind_append_unwinder): Likewise. (frame_unwind_find_by_frame): Likewise. * frame.c (frame_addr_hash): Likewise. (frame_addr_hash_eq): Likewise. (frame_stash_find): Likewise. (do_frame_register_read): Likewise. (unwind_to_current_frame): Likewise. (frame_cleanup_after_sniffer): Likewise. * frv-linux-tdep.c (frv_linux_sigtramp_frame_cache): Likewise. * frv-tdep.c (frv_frame_unwind_cache): Likewise. * ft32-tdep.c (ft32_frame_cache): Likewise. * gcore.c (do_bfd_delete_cleanup): Likewise. (gcore_create_callback): Likewise. * gdb_bfd.c (hash_bfd): Likewise. (eq_bfd): Likewise. (gdb_bfd_open): Likewise. (free_one_bfd_section): Likewise. (gdb_bfd_ref): Likewise. (gdb_bfd_unref): Likewise. (get_section_descriptor): Likewise. (gdb_bfd_map_section): Likewise. (gdb_bfd_crc): Likewise. (gdb_bfd_mark_parent): Likewise. (gdb_bfd_record_inclusion): Likewise. (gdb_bfd_requires_relocations): Likewise. (print_one_bfd): Likewise. * gdbtypes.c (type_pair_hash): Likewise. (type_pair_eq): Likewise. (builtin_type): Likewise. (objfile_type): Likewise. * gnu-v3-abi.c (vtable_ptrdiff_type): Likewise. (vtable_address_point_offset): Likewise. (gnuv3_get_vtable): Likewise. (hash_value_and_voffset): Likewise. (eq_value_and_voffset): Likewise. (compare_value_and_voffset): Likewise. (compute_vtable_size): Likewise. (gnuv3_get_typeid_type): Likewise. * go-lang.c (builtin_go_type): Likewise. * guile/scm-block.c (bkscm_hash_block_smob): Likewise. (bkscm_eq_block_smob): Likewise. (bkscm_objfile_block_map): Likewise. (bkscm_del_objfile_blocks): Likewise. * guile/scm-breakpoint.c (bpscm_build_bp_list): Likewise. * guile/scm-disasm.c (gdbscm_disasm_read_memory_worker): Likewise. (gdbscm_disasm_print_address): Likewise. * guile/scm-frame.c (frscm_hash_frame_smob): Likewise. (frscm_eq_frame_smob): Likewise. (frscm_inferior_frame_map): Likewise. (frscm_del_inferior_frames): Likewise. * guile/scm-gsmob.c (gdbscm_add_objfile_ref): Likewise. * guile/scm-objfile.c (ofscm_handle_objfile_deleted): Likewise. (ofscm_objfile_smob_from_objfile): Likewise. * guile/scm-ports.c (ioscm_write): Likewise. (ioscm_file_port_delete): Likewise. (ioscm_file_port_rewind): Likewise. (ioscm_file_port_put): Likewise. (ioscm_file_port_write): Likewise. * guile/scm-progspace.c (psscm_handle_pspace_deleted): Likewise. (psscm_pspace_smob_from_pspace): Likewise. * guile/scm-safe-call.c (scscm_recording_pre_unwind_handler): Likewise. (scscm_recording_unwind_handler): Likewise. (gdbscm_with_catch): Likewise. (scscm_call_0_body): Likewise. (scscm_call_1_body): Likewise. (scscm_call_2_body): Likewise. (scscm_call_3_body): Likewise. (scscm_call_4_body): Likewise. (scscm_apply_1_body): Likewise. (scscm_eval_scheme_string): Likewise. (gdbscm_safe_eval_string): Likewise. (scscm_source_scheme_script): Likewise. (gdbscm_safe_source_script): Likewise. * guile/scm-string.c (gdbscm_call_scm_to_stringn): Likewise. (gdbscm_call_scm_from_stringn): Likewise. * guile/scm-symbol.c (syscm_hash_symbol_smob): Likewise. (syscm_eq_symbol_smob): Likewise. (syscm_get_symbol_map): Likewise. (syscm_del_objfile_symbols): Likewise. * guile/scm-symtab.c (stscm_hash_symtab_smob): Likewise. (stscm_eq_symtab_smob): Likewise. (stscm_objfile_symtab_map): Likewise. (stscm_del_objfile_symtabs): Likewise. * guile/scm-type.c (tyscm_hash_type_smob): Likewise. (tyscm_eq_type_smob): Likewise. (tyscm_type_map): Likewise. (tyscm_copy_type_recursive): Likewise. (save_objfile_types): Likewise. * guile/scm-utils.c (extract_arg): Likewise. * h8300-tdep.c (h8300_frame_cache): Likewise. * hppa-linux-tdep.c (hppa_linux_sigtramp_frame_unwind_cache): Likewise. * hppa-tdep.c (compare_unwind_entries): Likewise. (find_unwind_entry): Likewise. (hppa_frame_cache): Likewise. (hppa_stub_frame_unwind_cache): Likewise. * hppanbsd-tdep.c (hppanbsd_supply_gregset): Likewise. * hppaobsd-tdep.c (hppaobsd_supply_gregset): Likewise. (hppaobsd_supply_fpregset): Likewise. * i386-cygwin-tdep.c (core_process_module_section): Likewise. * i386-linux-tdep.c (i386_linux_init_abi): Likewise. * i386-tdep.c (i386_frame_cache): Likewise. (i386_epilogue_frame_cache): Likewise. (i386_sigtramp_frame_cache): Likewise. (i386_supply_gregset): Likewise. (i386_collect_gregset): Likewise. (i386_gdbarch_init): Likewise. * i386obsd-tdep.c (i386obsd_aout_supply_regset): Likewise. (i386obsd_trapframe_cache): Likewise. * i387-tdep.c (i387_supply_fsave): Likewise. (i387_collect_fsave): Likewise. (i387_supply_fxsave): Likewise. (i387_collect_fxsave): Likewise. (i387_supply_xsave): Likewise. (i387_collect_xsave): Likewise. * ia64-tdep.c (ia64_frame_cache): Likewise. (ia64_sigtramp_frame_cache): Likewise. * infcmd.c (attach_command_continuation): Likewise. (attach_command_continuation_free_args): Likewise. * inferior.c (restore_inferior): Likewise. (delete_thread_of_inferior): Likewise. * inflow.c (inflow_inferior_data_cleanup): Likewise. (get_inflow_inferior_data): Likewise. (inflow_inferior_exit): Likewise. * infrun.c (displaced_step_clear_cleanup): Likewise. (restore_current_uiout_cleanup): Likewise. (release_stop_context_cleanup): Likewise. (do_restore_infcall_suspend_state_cleanup): Likewise. (do_restore_infcall_control_state_cleanup): Likewise. (restore_inferior_ptid): Likewise. * inline-frame.c (block_starting_point_at): Likewise. * iq2000-tdep.c (iq2000_frame_cache): Likewise. * jit.c (get_jit_objfile_data): Likewise. (get_jit_program_space_data): Likewise. (jit_object_close_impl): Likewise. (jit_find_objf_with_entry_addr): Likewise. (jit_breakpoint_deleted): Likewise. (jit_unwind_reg_set_impl): Likewise. (jit_unwind_reg_get_impl): Likewise. (jit_dealloc_cache): Likewise. (jit_frame_sniffer): Likewise. (jit_frame_prev_register): Likewise. (jit_prepend_unwinder): Likewise. (jit_inferior_exit_hook): Likewise. (free_objfile_data): Likewise. * jv-lang.c (jv_per_objfile_free): Likewise. (get_dynamics_objfile): Likewise. (get_java_class_symtab): Likewise. (builtin_java_type): Likewise. * language.c (language_string_char_type): Likewise. (language_bool_type): Likewise. (language_lookup_primitive_type): Likewise. (language_lookup_primitive_type_as_symbol): Likewise. * linespec.c (hash_address_entry): Likewise. (eq_address_entry): Likewise. (iterate_inline_only): Likewise. (iterate_name_matcher): Likewise. (decode_line_2_compare_items): Likewise. (collect_one_symbol): Likewise. (compare_symbols): Likewise. (compare_msymbols): Likewise. (add_symtabs_to_list): Likewise. (collect_symbols): Likewise. (compare_msyms): Likewise. (add_minsym): Likewise. (cleanup_linespec_result): Likewise. * linux-fork.c (inferior_call_waitpid_cleanup): Likewise. * linux-nat.c (delete_lwp_cleanup): Likewise. (count_events_callback): Likewise. (select_event_lwp_callback): Likewise. (resume_stopped_resumed_lwps): Likewise. * linux-tdep.c (get_linux_gdbarch_data): Likewise. (invalidate_linux_cache_inf): Likewise. (get_linux_inferior_data): Likewise. (linux_find_memory_regions_thunk): Likewise. (linux_make_mappings_callback): Likewise. (linux_corefile_thread_callback): Likewise. (find_mapping_size): Likewise. * linux-thread-db.c (find_new_threads_callback): Likewise. * lm32-tdep.c (lm32_frame_cache): Likewise. * m2-lang.c (builtin_m2_type): Likewise. * m32c-tdep.c (m32c_analyze_frame_prologue): Likewise. * m32r-linux-tdep.c (m32r_linux_sigtramp_frame_cache): Likewise. (m32r_linux_supply_gregset): Likewise. (m32r_linux_collect_gregset): Likewise. * m32r-tdep.c (m32r_frame_unwind_cache): Likewise. * m68hc11-tdep.c (m68hc11_frame_unwind_cache): Likewise. * m68k-tdep.c (m68k_frame_cache): Likewise. * m68kbsd-tdep.c (m68kbsd_supply_fpregset): Likewise. (m68kbsd_supply_gregset): Likewise. * m68klinux-tdep.c (m68k_linux_sigtramp_frame_cache): Likewise. * m88k-tdep.c (m88k_frame_cache): Likewise. (m88k_supply_gregset): Likewise. gdb/gdbserver/ChangeLog: * dll.c (match_dll): Add cast(s). (unloaded_dll): Likewise. * linux-low.c (second_thread_of_pid_p): Likewise. (delete_lwp_callback): Likewise. (count_events_callback): Likewise. (select_event_lwp_callback): Likewise. (linux_set_resume_request): Likewise. * server.c (accumulate_file_name_length): Likewise. (emit_dll_description): Likewise. (handle_qxfer_threads_worker): Likewise. (visit_actioned_threads): Likewise. * thread-db.c (any_thread_of): Likewise. * tracepoint.c (same_process_p): Likewise. (match_blocktype): Likewise. (build_traceframe_info_xml): Likewise. gdb/testsuite/ChangeLog: * gdb.gdb/selftest.exp (do_steps_and_nexts): Adjust expected source line.
1452 lines
44 KiB
C
1452 lines
44 KiB
C
/* Target-machine dependent code for Renesas H8/300, for GDB.
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Copyright (C) 1988-2015 Free Software Foundation, 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 3 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/*
|
|
Contributed by Steve Chamberlain
|
|
sac@cygnus.com
|
|
*/
|
|
|
|
#include "defs.h"
|
|
#include "value.h"
|
|
#include "arch-utils.h"
|
|
#include "regcache.h"
|
|
#include "gdbcore.h"
|
|
#include "objfiles.h"
|
|
#include "dis-asm.h"
|
|
#include "dwarf2-frame.h"
|
|
#include "frame-base.h"
|
|
#include "frame-unwind.h"
|
|
|
|
enum gdb_regnum
|
|
{
|
|
E_R0_REGNUM, E_ER0_REGNUM = E_R0_REGNUM, E_ARG0_REGNUM = E_R0_REGNUM,
|
|
E_RET0_REGNUM = E_R0_REGNUM,
|
|
E_R1_REGNUM, E_ER1_REGNUM = E_R1_REGNUM, E_RET1_REGNUM = E_R1_REGNUM,
|
|
E_R2_REGNUM, E_ER2_REGNUM = E_R2_REGNUM, E_ARGLAST_REGNUM = E_R2_REGNUM,
|
|
E_R3_REGNUM, E_ER3_REGNUM = E_R3_REGNUM,
|
|
E_R4_REGNUM, E_ER4_REGNUM = E_R4_REGNUM,
|
|
E_R5_REGNUM, E_ER5_REGNUM = E_R5_REGNUM,
|
|
E_R6_REGNUM, E_ER6_REGNUM = E_R6_REGNUM, E_FP_REGNUM = E_R6_REGNUM,
|
|
E_SP_REGNUM,
|
|
E_CCR_REGNUM,
|
|
E_PC_REGNUM,
|
|
E_CYCLES_REGNUM,
|
|
E_TICK_REGNUM, E_EXR_REGNUM = E_TICK_REGNUM,
|
|
E_INST_REGNUM, E_TICKS_REGNUM = E_INST_REGNUM,
|
|
E_INSTS_REGNUM,
|
|
E_MACH_REGNUM,
|
|
E_MACL_REGNUM,
|
|
E_SBR_REGNUM,
|
|
E_VBR_REGNUM
|
|
};
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|
|
|
#define H8300_MAX_NUM_REGS 18
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|
|
|
#define E_PSEUDO_CCR_REGNUM(gdbarch) (gdbarch_num_regs (gdbarch))
|
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#define E_PSEUDO_EXR_REGNUM(gdbarch) (gdbarch_num_regs (gdbarch)+1)
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|
|
|
struct h8300_frame_cache
|
|
{
|
|
/* Base address. */
|
|
CORE_ADDR base;
|
|
CORE_ADDR sp_offset;
|
|
CORE_ADDR pc;
|
|
|
|
/* Flag showing that a frame has been created in the prologue code. */
|
|
int uses_fp;
|
|
|
|
/* Saved registers. */
|
|
CORE_ADDR saved_regs[H8300_MAX_NUM_REGS];
|
|
CORE_ADDR saved_sp;
|
|
};
|
|
|
|
enum
|
|
{
|
|
h8300_reg_size = 2,
|
|
h8300h_reg_size = 4,
|
|
h8300_max_reg_size = 4,
|
|
};
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|
|
static int is_h8300hmode (struct gdbarch *gdbarch);
|
|
static int is_h8300smode (struct gdbarch *gdbarch);
|
|
static int is_h8300sxmode (struct gdbarch *gdbarch);
|
|
static int is_h8300_normal_mode (struct gdbarch *gdbarch);
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|
|
|
#define BINWORD(gdbarch) ((is_h8300hmode (gdbarch) \
|
|
&& !is_h8300_normal_mode (gdbarch)) \
|
|
? h8300h_reg_size : h8300_reg_size)
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|
|
|
static CORE_ADDR
|
|
h8300_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
|
|
{
|
|
return frame_unwind_register_unsigned (next_frame, E_PC_REGNUM);
|
|
}
|
|
|
|
static CORE_ADDR
|
|
h8300_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
|
|
{
|
|
return frame_unwind_register_unsigned (next_frame, E_SP_REGNUM);
|
|
}
|
|
|
|
static struct frame_id
|
|
h8300_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
|
|
{
|
|
CORE_ADDR sp = get_frame_register_unsigned (this_frame, E_SP_REGNUM);
|
|
return frame_id_build (sp, get_frame_pc (this_frame));
|
|
}
|
|
|
|
/* Normal frames. */
|
|
|
|
/* Allocate and initialize a frame cache. */
|
|
|
|
static void
|
|
h8300_init_frame_cache (struct gdbarch *gdbarch,
|
|
struct h8300_frame_cache *cache)
|
|
{
|
|
int i;
|
|
|
|
/* Base address. */
|
|
cache->base = 0;
|
|
cache->sp_offset = 0;
|
|
cache->pc = 0;
|
|
|
|
/* Frameless until proven otherwise. */
|
|
cache->uses_fp = 0;
|
|
|
|
/* Saved registers. We initialize these to -1 since zero is a valid
|
|
offset (that's where %fp is supposed to be stored). */
|
|
for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
|
|
cache->saved_regs[i] = -1;
|
|
}
|
|
|
|
#define IS_MOVB_RnRm(x) (((x) & 0xff88) == 0x0c88)
|
|
#define IS_MOVW_RnRm(x) (((x) & 0xff88) == 0x0d00)
|
|
#define IS_MOVL_RnRm(x) (((x) & 0xff88) == 0x0f80)
|
|
#define IS_MOVB_Rn16_SP(x) (((x) & 0xfff0) == 0x6ee0)
|
|
#define IS_MOVB_EXT(x) ((x) == 0x7860)
|
|
#define IS_MOVB_Rn24_SP(x) (((x) & 0xfff0) == 0x6aa0)
|
|
#define IS_MOVW_Rn16_SP(x) (((x) & 0xfff0) == 0x6fe0)
|
|
#define IS_MOVW_EXT(x) ((x) == 0x78e0)
|
|
#define IS_MOVW_Rn24_SP(x) (((x) & 0xfff0) == 0x6ba0)
|
|
/* Same instructions as mov.w, just prefixed with 0x0100. */
|
|
#define IS_MOVL_PRE(x) ((x) == 0x0100)
|
|
#define IS_MOVL_Rn16_SP(x) (((x) & 0xfff0) == 0x6fe0)
|
|
#define IS_MOVL_EXT(x) ((x) == 0x78e0)
|
|
#define IS_MOVL_Rn24_SP(x) (((x) & 0xfff0) == 0x6ba0)
|
|
|
|
#define IS_PUSHFP_MOVESPFP(x) ((x) == 0x6df60d76)
|
|
#define IS_PUSH_FP(x) ((x) == 0x01006df6)
|
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#define IS_MOV_SP_FP(x) ((x) == 0x0ff6)
|
|
#define IS_SUB2_SP(x) ((x) == 0x1b87)
|
|
#define IS_SUB4_SP(x) ((x) == 0x1b97)
|
|
#define IS_ADD_IMM_SP(x) ((x) == 0x7a1f)
|
|
#define IS_SUB_IMM_SP(x) ((x) == 0x7a3f)
|
|
#define IS_SUBL4_SP(x) ((x) == 0x1acf)
|
|
#define IS_MOV_IMM_Rn(x) (((x) & 0xfff0) == 0x7905)
|
|
#define IS_SUB_RnSP(x) (((x) & 0xff0f) == 0x1907)
|
|
#define IS_ADD_RnSP(x) (((x) & 0xff0f) == 0x0907)
|
|
#define IS_PUSH(x) (((x) & 0xfff0) == 0x6df0)
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|
|
/* If the instruction at PC is an argument register spill, return its
|
|
length. Otherwise, return zero.
|
|
|
|
An argument register spill is an instruction that moves an argument
|
|
from the register in which it was passed to the stack slot in which
|
|
it really lives. It is a byte, word, or longword move from an
|
|
argument register to a negative offset from the frame pointer.
|
|
|
|
CV, 2003-06-16: Or, in optimized code or when the `register' qualifier
|
|
is used, it could be a byte, word or long move to registers r3-r5. */
|
|
|
|
static int
|
|
h8300_is_argument_spill (struct gdbarch *gdbarch, CORE_ADDR pc)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
int w = read_memory_unsigned_integer (pc, 2, byte_order);
|
|
|
|
if ((IS_MOVB_RnRm (w) || IS_MOVW_RnRm (w) || IS_MOVL_RnRm (w))
|
|
&& (w & 0x70) <= 0x20 /* Rs is R0, R1 or R2 */
|
|
&& (w & 0x7) >= 0x3 && (w & 0x7) <= 0x5) /* Rd is R3, R4 or R5 */
|
|
return 2;
|
|
|
|
if (IS_MOVB_Rn16_SP (w)
|
|
&& 8 <= (w & 0xf) && (w & 0xf) <= 10) /* Rs is R0L, R1L, or R2L */
|
|
{
|
|
/* ... and d:16 is negative. */
|
|
if (read_memory_integer (pc + 2, 2, byte_order) < 0)
|
|
return 4;
|
|
}
|
|
else if (IS_MOVB_EXT (w))
|
|
{
|
|
if (IS_MOVB_Rn24_SP (read_memory_unsigned_integer (pc + 2,
|
|
2, byte_order)))
|
|
{
|
|
LONGEST disp = read_memory_integer (pc + 4, 4, byte_order);
|
|
|
|
/* ... and d:24 is negative. */
|
|
if (disp < 0 && disp > 0xffffff)
|
|
return 8;
|
|
}
|
|
}
|
|
else if (IS_MOVW_Rn16_SP (w)
|
|
&& (w & 0xf) <= 2) /* Rs is R0, R1, or R2 */
|
|
{
|
|
/* ... and d:16 is negative. */
|
|
if (read_memory_integer (pc + 2, 2, byte_order) < 0)
|
|
return 4;
|
|
}
|
|
else if (IS_MOVW_EXT (w))
|
|
{
|
|
if (IS_MOVW_Rn24_SP (read_memory_unsigned_integer (pc + 2,
|
|
2, byte_order)))
|
|
{
|
|
LONGEST disp = read_memory_integer (pc + 4, 4, byte_order);
|
|
|
|
/* ... and d:24 is negative. */
|
|
if (disp < 0 && disp > 0xffffff)
|
|
return 8;
|
|
}
|
|
}
|
|
else if (IS_MOVL_PRE (w))
|
|
{
|
|
int w2 = read_memory_integer (pc + 2, 2, byte_order);
|
|
|
|
if (IS_MOVL_Rn16_SP (w2)
|
|
&& (w2 & 0xf) <= 2) /* Rs is ER0, ER1, or ER2 */
|
|
{
|
|
/* ... and d:16 is negative. */
|
|
if (read_memory_integer (pc + 4, 2, byte_order) < 0)
|
|
return 6;
|
|
}
|
|
else if (IS_MOVL_EXT (w2))
|
|
{
|
|
int w3 = read_memory_integer (pc + 4, 2, byte_order);
|
|
|
|
if (IS_MOVL_Rn24_SP (read_memory_integer (pc + 4, 2, byte_order)))
|
|
{
|
|
LONGEST disp = read_memory_integer (pc + 6, 4, byte_order);
|
|
|
|
/* ... and d:24 is negative. */
|
|
if (disp < 0 && disp > 0xffffff)
|
|
return 10;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Do a full analysis of the prologue at PC and update CACHE
|
|
accordingly. Bail out early if CURRENT_PC is reached. Return the
|
|
address where the analysis stopped.
|
|
|
|
We handle all cases that can be generated by gcc.
|
|
|
|
For allocating a stack frame:
|
|
|
|
mov.w r6,@-sp
|
|
mov.w sp,r6
|
|
mov.w #-n,rN
|
|
add.w rN,sp
|
|
|
|
mov.w r6,@-sp
|
|
mov.w sp,r6
|
|
subs #2,sp
|
|
(repeat)
|
|
|
|
mov.l er6,@-sp
|
|
mov.l sp,er6
|
|
add.l #-n,sp
|
|
|
|
mov.w r6,@-sp
|
|
mov.w sp,r6
|
|
subs #4,sp
|
|
(repeat)
|
|
|
|
For saving registers:
|
|
|
|
mov.w rN,@-sp
|
|
mov.l erN,@-sp
|
|
stm.l reglist,@-sp
|
|
|
|
*/
|
|
|
|
static CORE_ADDR
|
|
h8300_analyze_prologue (struct gdbarch *gdbarch,
|
|
CORE_ADDR pc, CORE_ADDR current_pc,
|
|
struct h8300_frame_cache *cache)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
unsigned int op;
|
|
int regno, i, spill_size;
|
|
|
|
cache->sp_offset = 0;
|
|
|
|
if (pc >= current_pc)
|
|
return current_pc;
|
|
|
|
op = read_memory_unsigned_integer (pc, 4, byte_order);
|
|
|
|
if (IS_PUSHFP_MOVESPFP (op))
|
|
{
|
|
cache->saved_regs[E_FP_REGNUM] = 0;
|
|
cache->uses_fp = 1;
|
|
pc += 4;
|
|
}
|
|
else if (IS_PUSH_FP (op))
|
|
{
|
|
cache->saved_regs[E_FP_REGNUM] = 0;
|
|
pc += 4;
|
|
if (pc >= current_pc)
|
|
return current_pc;
|
|
op = read_memory_unsigned_integer (pc, 2, byte_order);
|
|
if (IS_MOV_SP_FP (op))
|
|
{
|
|
cache->uses_fp = 1;
|
|
pc += 2;
|
|
}
|
|
}
|
|
|
|
while (pc < current_pc)
|
|
{
|
|
op = read_memory_unsigned_integer (pc, 2, byte_order);
|
|
if (IS_SUB2_SP (op))
|
|
{
|
|
cache->sp_offset += 2;
|
|
pc += 2;
|
|
}
|
|
else if (IS_SUB4_SP (op))
|
|
{
|
|
cache->sp_offset += 4;
|
|
pc += 2;
|
|
}
|
|
else if (IS_ADD_IMM_SP (op))
|
|
{
|
|
cache->sp_offset += -read_memory_integer (pc + 2, 2, byte_order);
|
|
pc += 4;
|
|
}
|
|
else if (IS_SUB_IMM_SP (op))
|
|
{
|
|
cache->sp_offset += read_memory_integer (pc + 2, 2, byte_order);
|
|
pc += 4;
|
|
}
|
|
else if (IS_SUBL4_SP (op))
|
|
{
|
|
cache->sp_offset += 4;
|
|
pc += 2;
|
|
}
|
|
else if (IS_MOV_IMM_Rn (op))
|
|
{
|
|
int offset = read_memory_integer (pc + 2, 2, byte_order);
|
|
regno = op & 0x000f;
|
|
op = read_memory_unsigned_integer (pc + 4, 2, byte_order);
|
|
if (IS_ADD_RnSP (op) && (op & 0x00f0) == regno)
|
|
{
|
|
cache->sp_offset -= offset;
|
|
pc += 6;
|
|
}
|
|
else if (IS_SUB_RnSP (op) && (op & 0x00f0) == regno)
|
|
{
|
|
cache->sp_offset += offset;
|
|
pc += 6;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
else if (IS_PUSH (op))
|
|
{
|
|
regno = op & 0x000f;
|
|
cache->sp_offset += 2;
|
|
cache->saved_regs[regno] = cache->sp_offset;
|
|
pc += 2;
|
|
}
|
|
else if (op == 0x0100)
|
|
{
|
|
op = read_memory_unsigned_integer (pc + 2, 2, byte_order);
|
|
if (IS_PUSH (op))
|
|
{
|
|
regno = op & 0x000f;
|
|
cache->sp_offset += 4;
|
|
cache->saved_regs[regno] = cache->sp_offset;
|
|
pc += 4;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
else if ((op & 0xffcf) == 0x0100)
|
|
{
|
|
int op1;
|
|
op1 = read_memory_unsigned_integer (pc + 2, 2, byte_order);
|
|
if (IS_PUSH (op1))
|
|
{
|
|
/* Since the prefix is 0x01x0, this is not a simple pushm but a
|
|
stm.l reglist,@-sp */
|
|
i = ((op & 0x0030) >> 4) + 1;
|
|
regno = op1 & 0x000f;
|
|
for (; i > 0; regno++, --i)
|
|
{
|
|
cache->sp_offset += 4;
|
|
cache->saved_regs[regno] = cache->sp_offset;
|
|
}
|
|
pc += 4;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
|
|
/* Check for spilling an argument register to the stack frame.
|
|
This could also be an initializing store from non-prologue code,
|
|
but I don't think there's any harm in skipping that. */
|
|
while ((spill_size = h8300_is_argument_spill (gdbarch, pc)) > 0
|
|
&& pc + spill_size <= current_pc)
|
|
pc += spill_size;
|
|
|
|
return pc;
|
|
}
|
|
|
|
static struct h8300_frame_cache *
|
|
h8300_frame_cache (struct frame_info *this_frame, void **this_cache)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (this_frame);
|
|
struct h8300_frame_cache *cache;
|
|
int i;
|
|
CORE_ADDR current_pc;
|
|
|
|
if (*this_cache)
|
|
return (struct h8300_frame_cache *) *this_cache;
|
|
|
|
cache = FRAME_OBSTACK_ZALLOC (struct h8300_frame_cache);
|
|
h8300_init_frame_cache (gdbarch, cache);
|
|
*this_cache = cache;
|
|
|
|
/* In principle, for normal frames, %fp holds the frame pointer,
|
|
which holds the base address for the current stack frame.
|
|
However, for functions that don't need it, the frame pointer is
|
|
optional. For these "frameless" functions the frame pointer is
|
|
actually the frame pointer of the calling frame. */
|
|
|
|
cache->base = get_frame_register_unsigned (this_frame, E_FP_REGNUM);
|
|
if (cache->base == 0)
|
|
return cache;
|
|
|
|
cache->saved_regs[E_PC_REGNUM] = -BINWORD (gdbarch);
|
|
|
|
cache->pc = get_frame_func (this_frame);
|
|
current_pc = get_frame_pc (this_frame);
|
|
if (cache->pc != 0)
|
|
h8300_analyze_prologue (gdbarch, cache->pc, current_pc, cache);
|
|
|
|
if (!cache->uses_fp)
|
|
{
|
|
/* We didn't find a valid frame, which means that CACHE->base
|
|
currently holds the frame pointer for our calling frame. If
|
|
we're at the start of a function, or somewhere half-way its
|
|
prologue, the function's frame probably hasn't been fully
|
|
setup yet. Try to reconstruct the base address for the stack
|
|
frame by looking at the stack pointer. For truly "frameless"
|
|
functions this might work too. */
|
|
|
|
cache->base = get_frame_register_unsigned (this_frame, E_SP_REGNUM)
|
|
+ cache->sp_offset;
|
|
cache->saved_sp = cache->base + BINWORD (gdbarch);
|
|
cache->saved_regs[E_PC_REGNUM] = 0;
|
|
}
|
|
else
|
|
{
|
|
cache->saved_sp = cache->base + 2 * BINWORD (gdbarch);
|
|
cache->saved_regs[E_PC_REGNUM] = -BINWORD (gdbarch);
|
|
}
|
|
|
|
/* Adjust all the saved registers such that they contain addresses
|
|
instead of offsets. */
|
|
for (i = 0; i < gdbarch_num_regs (gdbarch); i++)
|
|
if (cache->saved_regs[i] != -1)
|
|
cache->saved_regs[i] = cache->base - cache->saved_regs[i];
|
|
|
|
return cache;
|
|
}
|
|
|
|
static void
|
|
h8300_frame_this_id (struct frame_info *this_frame, void **this_cache,
|
|
struct frame_id *this_id)
|
|
{
|
|
struct h8300_frame_cache *cache =
|
|
h8300_frame_cache (this_frame, this_cache);
|
|
|
|
/* This marks the outermost frame. */
|
|
if (cache->base == 0)
|
|
return;
|
|
|
|
*this_id = frame_id_build (cache->saved_sp, cache->pc);
|
|
}
|
|
|
|
static struct value *
|
|
h8300_frame_prev_register (struct frame_info *this_frame, void **this_cache,
|
|
int regnum)
|
|
{
|
|
struct gdbarch *gdbarch = get_frame_arch (this_frame);
|
|
struct h8300_frame_cache *cache =
|
|
h8300_frame_cache (this_frame, this_cache);
|
|
|
|
gdb_assert (regnum >= 0);
|
|
|
|
if (regnum == E_SP_REGNUM && cache->saved_sp)
|
|
return frame_unwind_got_constant (this_frame, regnum, cache->saved_sp);
|
|
|
|
if (regnum < gdbarch_num_regs (gdbarch)
|
|
&& cache->saved_regs[regnum] != -1)
|
|
return frame_unwind_got_memory (this_frame, regnum,
|
|
cache->saved_regs[regnum]);
|
|
|
|
return frame_unwind_got_register (this_frame, regnum, regnum);
|
|
}
|
|
|
|
static const struct frame_unwind h8300_frame_unwind = {
|
|
NORMAL_FRAME,
|
|
default_frame_unwind_stop_reason,
|
|
h8300_frame_this_id,
|
|
h8300_frame_prev_register,
|
|
NULL,
|
|
default_frame_sniffer
|
|
};
|
|
|
|
static CORE_ADDR
|
|
h8300_frame_base_address (struct frame_info *this_frame, void **this_cache)
|
|
{
|
|
struct h8300_frame_cache *cache = h8300_frame_cache (this_frame, this_cache);
|
|
return cache->base;
|
|
}
|
|
|
|
static const struct frame_base h8300_frame_base = {
|
|
&h8300_frame_unwind,
|
|
h8300_frame_base_address,
|
|
h8300_frame_base_address,
|
|
h8300_frame_base_address
|
|
};
|
|
|
|
static CORE_ADDR
|
|
h8300_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
|
|
{
|
|
CORE_ADDR func_addr = 0 , func_end = 0;
|
|
|
|
if (find_pc_partial_function (pc, NULL, &func_addr, &func_end))
|
|
{
|
|
struct symtab_and_line sal;
|
|
struct h8300_frame_cache cache;
|
|
|
|
/* Found a function. */
|
|
sal = find_pc_line (func_addr, 0);
|
|
if (sal.end && sal.end < func_end)
|
|
/* Found a line number, use it as end of prologue. */
|
|
return sal.end;
|
|
|
|
/* No useable line symbol. Use prologue parsing method. */
|
|
h8300_init_frame_cache (gdbarch, &cache);
|
|
return h8300_analyze_prologue (gdbarch, func_addr, func_end, &cache);
|
|
}
|
|
|
|
/* No function symbol -- just return the PC. */
|
|
return (CORE_ADDR) pc;
|
|
}
|
|
|
|
/* Function: push_dummy_call
|
|
Setup the function arguments for calling a function in the inferior.
|
|
In this discussion, a `word' is 16 bits on the H8/300s, and 32 bits
|
|
on the H8/300H.
|
|
|
|
There are actually two ABI's here: -mquickcall (the default) and
|
|
-mno-quickcall. With -mno-quickcall, all arguments are passed on
|
|
the stack after the return address, word-aligned. With
|
|
-mquickcall, GCC tries to use r0 -- r2 to pass registers. Since
|
|
GCC doesn't indicate in the object file which ABI was used to
|
|
compile it, GDB only supports the default --- -mquickcall.
|
|
|
|
Here are the rules for -mquickcall, in detail:
|
|
|
|
Each argument, whether scalar or aggregate, is padded to occupy a
|
|
whole number of words. Arguments smaller than a word are padded at
|
|
the most significant end; those larger than a word are padded at
|
|
the least significant end.
|
|
|
|
The initial arguments are passed in r0 -- r2. Earlier arguments go in
|
|
lower-numbered registers. Multi-word arguments are passed in
|
|
consecutive registers, with the most significant end in the
|
|
lower-numbered register.
|
|
|
|
If an argument doesn't fit entirely in the remaining registers, it
|
|
is passed entirely on the stack. Stack arguments begin just after
|
|
the return address. Once an argument has overflowed onto the stack
|
|
this way, all subsequent arguments are passed on the stack.
|
|
|
|
The above rule has odd consequences. For example, on the h8/300s,
|
|
if a function takes two longs and an int as arguments:
|
|
- the first long will be passed in r0/r1,
|
|
- the second long will be passed entirely on the stack, since it
|
|
doesn't fit in r2,
|
|
- and the int will be passed on the stack, even though it could fit
|
|
in r2.
|
|
|
|
A weird exception: if an argument is larger than a word, but not a
|
|
whole number of words in length (before padding), it is passed on
|
|
the stack following the rules for stack arguments above, even if
|
|
there are sufficient registers available to hold it. Stranger
|
|
still, the argument registers are still `used up' --- even though
|
|
there's nothing in them.
|
|
|
|
So, for example, on the h8/300s, if a function expects a three-byte
|
|
structure and an int, the structure will go on the stack, and the
|
|
int will go in r2, not r0.
|
|
|
|
If the function returns an aggregate type (struct, union, or class)
|
|
by value, the caller must allocate space to hold the return value,
|
|
and pass the callee a pointer to this space as an invisible first
|
|
argument, in R0.
|
|
|
|
For varargs functions, the last fixed argument and all the variable
|
|
arguments are always passed on the stack. This means that calls to
|
|
varargs functions don't work properly unless there is a prototype
|
|
in scope.
|
|
|
|
Basically, this ABI is not good, for the following reasons:
|
|
- You can't call vararg functions properly unless a prototype is in scope.
|
|
- Structure passing is inconsistent, to no purpose I can see.
|
|
- It often wastes argument registers, of which there are only three
|
|
to begin with. */
|
|
|
|
static CORE_ADDR
|
|
h8300_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
|
|
struct regcache *regcache, CORE_ADDR bp_addr,
|
|
int nargs, struct value **args, CORE_ADDR sp,
|
|
int struct_return, CORE_ADDR struct_addr)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
int stack_alloc = 0, stack_offset = 0;
|
|
int wordsize = BINWORD (gdbarch);
|
|
int reg = E_ARG0_REGNUM;
|
|
int argument;
|
|
|
|
/* First, make sure the stack is properly aligned. */
|
|
sp = align_down (sp, wordsize);
|
|
|
|
/* Now make sure there's space on the stack for the arguments. We
|
|
may over-allocate a little here, but that won't hurt anything. */
|
|
for (argument = 0; argument < nargs; argument++)
|
|
stack_alloc += align_up (TYPE_LENGTH (value_type (args[argument])),
|
|
wordsize);
|
|
sp -= stack_alloc;
|
|
|
|
/* Now load as many arguments as possible into registers, and push
|
|
the rest onto the stack.
|
|
If we're returning a structure by value, then we must pass a
|
|
pointer to the buffer for the return value as an invisible first
|
|
argument. */
|
|
if (struct_return)
|
|
regcache_cooked_write_unsigned (regcache, reg++, struct_addr);
|
|
|
|
for (argument = 0; argument < nargs; argument++)
|
|
{
|
|
struct cleanup *back_to;
|
|
struct type *type = value_type (args[argument]);
|
|
int len = TYPE_LENGTH (type);
|
|
char *contents = (char *) value_contents (args[argument]);
|
|
|
|
/* Pad the argument appropriately. */
|
|
int padded_len = align_up (len, wordsize);
|
|
gdb_byte *padded = (gdb_byte *) xmalloc (padded_len);
|
|
back_to = make_cleanup (xfree, padded);
|
|
|
|
memset (padded, 0, padded_len);
|
|
memcpy (len < wordsize ? padded + padded_len - len : padded,
|
|
contents, len);
|
|
|
|
/* Could the argument fit in the remaining registers? */
|
|
if (padded_len <= (E_ARGLAST_REGNUM - reg + 1) * wordsize)
|
|
{
|
|
/* Are we going to pass it on the stack anyway, for no good
|
|
reason? */
|
|
if (len > wordsize && len % wordsize)
|
|
{
|
|
/* I feel so unclean. */
|
|
write_memory (sp + stack_offset, padded, padded_len);
|
|
stack_offset += padded_len;
|
|
|
|
/* That's right --- even though we passed the argument
|
|
on the stack, we consume the registers anyway! Love
|
|
me, love my dog. */
|
|
reg += padded_len / wordsize;
|
|
}
|
|
else
|
|
{
|
|
/* Heavens to Betsy --- it's really going in registers!
|
|
Note that on the h8/300s, there are gaps between the
|
|
registers in the register file. */
|
|
int offset;
|
|
|
|
for (offset = 0; offset < padded_len; offset += wordsize)
|
|
{
|
|
ULONGEST word
|
|
= extract_unsigned_integer (padded + offset,
|
|
wordsize, byte_order);
|
|
regcache_cooked_write_unsigned (regcache, reg++, word);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* It doesn't fit in registers! Onto the stack it goes. */
|
|
write_memory (sp + stack_offset, padded, padded_len);
|
|
stack_offset += padded_len;
|
|
|
|
/* Once one argument has spilled onto the stack, all
|
|
subsequent arguments go on the stack. */
|
|
reg = E_ARGLAST_REGNUM + 1;
|
|
}
|
|
|
|
do_cleanups (back_to);
|
|
}
|
|
|
|
/* Store return address. */
|
|
sp -= wordsize;
|
|
write_memory_unsigned_integer (sp, wordsize, byte_order, bp_addr);
|
|
|
|
/* Update stack pointer. */
|
|
regcache_cooked_write_unsigned (regcache, E_SP_REGNUM, sp);
|
|
|
|
/* Return the new stack pointer minus the return address slot since
|
|
that's what DWARF2/GCC uses as the frame's CFA. */
|
|
return sp + wordsize;
|
|
}
|
|
|
|
/* Function: extract_return_value
|
|
Figure out where in REGBUF the called function has left its return value.
|
|
Copy that into VALBUF. Be sure to account for CPU type. */
|
|
|
|
static void
|
|
h8300_extract_return_value (struct type *type, struct regcache *regcache,
|
|
void *valbuf)
|
|
{
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
int len = TYPE_LENGTH (type);
|
|
ULONGEST c, addr;
|
|
|
|
switch (len)
|
|
{
|
|
case 1:
|
|
case 2:
|
|
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
|
|
store_unsigned_integer (valbuf, len, byte_order, c);
|
|
break;
|
|
case 4: /* Needs two registers on plain H8/300 */
|
|
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
|
|
store_unsigned_integer (valbuf, 2, byte_order, c);
|
|
regcache_cooked_read_unsigned (regcache, E_RET1_REGNUM, &c);
|
|
store_unsigned_integer ((void *)((char *) valbuf + 2), 2, byte_order, c);
|
|
break;
|
|
case 8: /* long long is now 8 bytes. */
|
|
if (TYPE_CODE (type) == TYPE_CODE_INT)
|
|
{
|
|
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &addr);
|
|
c = read_memory_unsigned_integer ((CORE_ADDR) addr, len, byte_order);
|
|
store_unsigned_integer (valbuf, len, byte_order, c);
|
|
}
|
|
else
|
|
{
|
|
error (_("I don't know how this 8 byte value is returned."));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
h8300h_extract_return_value (struct type *type, struct regcache *regcache,
|
|
void *valbuf)
|
|
{
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
ULONGEST c;
|
|
|
|
switch (TYPE_LENGTH (type))
|
|
{
|
|
case 1:
|
|
case 2:
|
|
case 4:
|
|
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
|
|
store_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order, c);
|
|
break;
|
|
case 8: /* long long is now 8 bytes. */
|
|
if (TYPE_CODE (type) == TYPE_CODE_INT)
|
|
{
|
|
regcache_cooked_read_unsigned (regcache, E_RET0_REGNUM, &c);
|
|
store_unsigned_integer (valbuf, 4, byte_order, c);
|
|
regcache_cooked_read_unsigned (regcache, E_RET1_REGNUM, &c);
|
|
store_unsigned_integer ((void *) ((char *) valbuf + 4), 4,
|
|
byte_order, c);
|
|
}
|
|
else
|
|
{
|
|
error (_("I don't know how this 8 byte value is returned."));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
h8300_use_struct_convention (struct type *value_type)
|
|
{
|
|
/* Types of 1, 2 or 4 bytes are returned in R0/R1, everything else on the
|
|
stack. */
|
|
|
|
if (TYPE_CODE (value_type) == TYPE_CODE_STRUCT
|
|
|| TYPE_CODE (value_type) == TYPE_CODE_UNION)
|
|
return 1;
|
|
return !(TYPE_LENGTH (value_type) == 1
|
|
|| TYPE_LENGTH (value_type) == 2
|
|
|| TYPE_LENGTH (value_type) == 4);
|
|
}
|
|
|
|
static int
|
|
h8300h_use_struct_convention (struct type *value_type)
|
|
{
|
|
/* Types of 1, 2 or 4 bytes are returned in R0, INT types of 8 bytes are
|
|
returned in R0/R1, everything else on the stack. */
|
|
if (TYPE_CODE (value_type) == TYPE_CODE_STRUCT
|
|
|| TYPE_CODE (value_type) == TYPE_CODE_UNION)
|
|
return 1;
|
|
return !(TYPE_LENGTH (value_type) == 1
|
|
|| TYPE_LENGTH (value_type) == 2
|
|
|| TYPE_LENGTH (value_type) == 4
|
|
|| (TYPE_LENGTH (value_type) == 8
|
|
&& TYPE_CODE (value_type) == TYPE_CODE_INT));
|
|
}
|
|
|
|
/* Function: store_return_value
|
|
Place the appropriate value in the appropriate registers.
|
|
Primarily used by the RETURN command. */
|
|
|
|
static void
|
|
h8300_store_return_value (struct type *type, struct regcache *regcache,
|
|
const void *valbuf)
|
|
{
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
ULONGEST val;
|
|
|
|
switch (TYPE_LENGTH (type))
|
|
{
|
|
case 1:
|
|
case 2: /* short... */
|
|
val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
|
|
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
|
|
break;
|
|
case 4: /* long, float */
|
|
val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
|
|
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
|
|
(val >> 16) & 0xffff);
|
|
regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM, val & 0xffff);
|
|
break;
|
|
case 8: /* long long, double and long double
|
|
are all defined as 4 byte types so
|
|
far so this shouldn't happen. */
|
|
error (_("I don't know how to return an 8 byte value."));
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
h8300h_store_return_value (struct type *type, struct regcache *regcache,
|
|
const void *valbuf)
|
|
{
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
ULONGEST val;
|
|
|
|
switch (TYPE_LENGTH (type))
|
|
{
|
|
case 1:
|
|
case 2:
|
|
case 4: /* long, float */
|
|
val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
|
|
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM, val);
|
|
break;
|
|
case 8:
|
|
val = extract_unsigned_integer (valbuf, TYPE_LENGTH (type), byte_order);
|
|
regcache_cooked_write_unsigned (regcache, E_RET0_REGNUM,
|
|
(val >> 32) & 0xffffffff);
|
|
regcache_cooked_write_unsigned (regcache, E_RET1_REGNUM,
|
|
val & 0xffffffff);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static enum return_value_convention
|
|
h8300_return_value (struct gdbarch *gdbarch, struct value *function,
|
|
struct type *type, struct regcache *regcache,
|
|
gdb_byte *readbuf, const gdb_byte *writebuf)
|
|
{
|
|
if (h8300_use_struct_convention (type))
|
|
return RETURN_VALUE_STRUCT_CONVENTION;
|
|
if (writebuf)
|
|
h8300_store_return_value (type, regcache, writebuf);
|
|
else if (readbuf)
|
|
h8300_extract_return_value (type, regcache, readbuf);
|
|
return RETURN_VALUE_REGISTER_CONVENTION;
|
|
}
|
|
|
|
static enum return_value_convention
|
|
h8300h_return_value (struct gdbarch *gdbarch, struct value *function,
|
|
struct type *type, struct regcache *regcache,
|
|
gdb_byte *readbuf, const gdb_byte *writebuf)
|
|
{
|
|
if (h8300h_use_struct_convention (type))
|
|
{
|
|
if (readbuf)
|
|
{
|
|
ULONGEST addr;
|
|
|
|
regcache_raw_read_unsigned (regcache, E_R0_REGNUM, &addr);
|
|
read_memory (addr, readbuf, TYPE_LENGTH (type));
|
|
}
|
|
|
|
return RETURN_VALUE_ABI_RETURNS_ADDRESS;
|
|
}
|
|
if (writebuf)
|
|
h8300h_store_return_value (type, regcache, writebuf);
|
|
else if (readbuf)
|
|
h8300h_extract_return_value (type, regcache, readbuf);
|
|
return RETURN_VALUE_REGISTER_CONVENTION;
|
|
}
|
|
|
|
/* Implementation of 'register_sim_regno' gdbarch method. */
|
|
|
|
static int
|
|
h8300_register_sim_regno (struct gdbarch *gdbarch, int regnum)
|
|
{
|
|
/* Only makes sense to supply raw registers. */
|
|
gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
|
|
|
|
/* We hide the raw ccr from the user by making it nameless. Because
|
|
the default register_sim_regno hook returns
|
|
LEGACY_SIM_REGNO_IGNORE for unnamed registers, we need to
|
|
override it. The sim register numbering is compatible with
|
|
gdb's. */
|
|
return regnum;
|
|
}
|
|
|
|
static const char *
|
|
h8300_register_name (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
/* The register names change depending on which h8300 processor
|
|
type is selected. */
|
|
static char *register_names[] = {
|
|
"r0", "r1", "r2", "r3", "r4", "r5", "r6",
|
|
"sp", "", "pc", "cycles", "tick", "inst",
|
|
"ccr", /* pseudo register */
|
|
};
|
|
if (regno < 0
|
|
|| regno >= (sizeof (register_names) / sizeof (*register_names)))
|
|
internal_error (__FILE__, __LINE__,
|
|
_("h8300_register_name: illegal register number %d"),
|
|
regno);
|
|
else
|
|
return register_names[regno];
|
|
}
|
|
|
|
static const char *
|
|
h8300s_register_name (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
static char *register_names[] = {
|
|
"er0", "er1", "er2", "er3", "er4", "er5", "er6",
|
|
"sp", "", "pc", "cycles", "", "tick", "inst",
|
|
"mach", "macl",
|
|
"ccr", "exr" /* pseudo registers */
|
|
};
|
|
if (regno < 0
|
|
|| regno >= (sizeof (register_names) / sizeof (*register_names)))
|
|
internal_error (__FILE__, __LINE__,
|
|
_("h8300s_register_name: illegal register number %d"),
|
|
regno);
|
|
else
|
|
return register_names[regno];
|
|
}
|
|
|
|
static const char *
|
|
h8300sx_register_name (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
static char *register_names[] = {
|
|
"er0", "er1", "er2", "er3", "er4", "er5", "er6",
|
|
"sp", "", "pc", "cycles", "", "tick", "inst",
|
|
"mach", "macl", "sbr", "vbr",
|
|
"ccr", "exr" /* pseudo registers */
|
|
};
|
|
if (regno < 0
|
|
|| regno >= (sizeof (register_names) / sizeof (*register_names)))
|
|
internal_error (__FILE__, __LINE__,
|
|
_("h8300sx_register_name: illegal register number %d"),
|
|
regno);
|
|
else
|
|
return register_names[regno];
|
|
}
|
|
|
|
static void
|
|
h8300_print_register (struct gdbarch *gdbarch, struct ui_file *file,
|
|
struct frame_info *frame, int regno)
|
|
{
|
|
LONGEST rval;
|
|
const char *name = gdbarch_register_name (gdbarch, regno);
|
|
|
|
if (!name || !*name)
|
|
return;
|
|
|
|
rval = get_frame_register_signed (frame, regno);
|
|
|
|
fprintf_filtered (file, "%-14s ", name);
|
|
if ((regno == E_PSEUDO_CCR_REGNUM (gdbarch)) || \
|
|
(regno == E_PSEUDO_EXR_REGNUM (gdbarch) && is_h8300smode (gdbarch)))
|
|
{
|
|
fprintf_filtered (file, "0x%02x ", (unsigned char) rval);
|
|
print_longest (file, 'u', 1, rval);
|
|
}
|
|
else
|
|
{
|
|
fprintf_filtered (file, "0x%s ", phex ((ULONGEST) rval,
|
|
BINWORD (gdbarch)));
|
|
print_longest (file, 'd', 1, rval);
|
|
}
|
|
if (regno == E_PSEUDO_CCR_REGNUM (gdbarch))
|
|
{
|
|
/* CCR register */
|
|
int C, Z, N, V;
|
|
unsigned char l = rval & 0xff;
|
|
fprintf_filtered (file, "\t");
|
|
fprintf_filtered (file, "I-%d ", (l & 0x80) != 0);
|
|
fprintf_filtered (file, "UI-%d ", (l & 0x40) != 0);
|
|
fprintf_filtered (file, "H-%d ", (l & 0x20) != 0);
|
|
fprintf_filtered (file, "U-%d ", (l & 0x10) != 0);
|
|
N = (l & 0x8) != 0;
|
|
Z = (l & 0x4) != 0;
|
|
V = (l & 0x2) != 0;
|
|
C = (l & 0x1) != 0;
|
|
fprintf_filtered (file, "N-%d ", N);
|
|
fprintf_filtered (file, "Z-%d ", Z);
|
|
fprintf_filtered (file, "V-%d ", V);
|
|
fprintf_filtered (file, "C-%d ", C);
|
|
if ((C | Z) == 0)
|
|
fprintf_filtered (file, "u> ");
|
|
if ((C | Z) == 1)
|
|
fprintf_filtered (file, "u<= ");
|
|
if ((C == 0))
|
|
fprintf_filtered (file, "u>= ");
|
|
if (C == 1)
|
|
fprintf_filtered (file, "u< ");
|
|
if (Z == 0)
|
|
fprintf_filtered (file, "!= ");
|
|
if (Z == 1)
|
|
fprintf_filtered (file, "== ");
|
|
if ((N ^ V) == 0)
|
|
fprintf_filtered (file, ">= ");
|
|
if ((N ^ V) == 1)
|
|
fprintf_filtered (file, "< ");
|
|
if ((Z | (N ^ V)) == 0)
|
|
fprintf_filtered (file, "> ");
|
|
if ((Z | (N ^ V)) == 1)
|
|
fprintf_filtered (file, "<= ");
|
|
}
|
|
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch) && is_h8300smode (gdbarch))
|
|
{
|
|
/* EXR register */
|
|
unsigned char l = rval & 0xff;
|
|
fprintf_filtered (file, "\t");
|
|
fprintf_filtered (file, "T-%d - - - ", (l & 0x80) != 0);
|
|
fprintf_filtered (file, "I2-%d ", (l & 4) != 0);
|
|
fprintf_filtered (file, "I1-%d ", (l & 2) != 0);
|
|
fprintf_filtered (file, "I0-%d", (l & 1) != 0);
|
|
}
|
|
fprintf_filtered (file, "\n");
|
|
}
|
|
|
|
static void
|
|
h8300_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file,
|
|
struct frame_info *frame, int regno, int cpregs)
|
|
{
|
|
if (regno < 0)
|
|
{
|
|
for (regno = E_R0_REGNUM; regno <= E_SP_REGNUM; ++regno)
|
|
h8300_print_register (gdbarch, file, frame, regno);
|
|
h8300_print_register (gdbarch, file, frame,
|
|
E_PSEUDO_CCR_REGNUM (gdbarch));
|
|
h8300_print_register (gdbarch, file, frame, E_PC_REGNUM);
|
|
if (is_h8300smode (gdbarch))
|
|
{
|
|
h8300_print_register (gdbarch, file, frame,
|
|
E_PSEUDO_EXR_REGNUM (gdbarch));
|
|
if (is_h8300sxmode (gdbarch))
|
|
{
|
|
h8300_print_register (gdbarch, file, frame, E_SBR_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_VBR_REGNUM);
|
|
}
|
|
h8300_print_register (gdbarch, file, frame, E_MACH_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_MACL_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_CYCLES_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_TICKS_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_INSTS_REGNUM);
|
|
}
|
|
else
|
|
{
|
|
h8300_print_register (gdbarch, file, frame, E_CYCLES_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_TICK_REGNUM);
|
|
h8300_print_register (gdbarch, file, frame, E_INST_REGNUM);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (regno == E_CCR_REGNUM)
|
|
h8300_print_register (gdbarch, file, frame,
|
|
E_PSEUDO_CCR_REGNUM (gdbarch));
|
|
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch)
|
|
&& is_h8300smode (gdbarch))
|
|
h8300_print_register (gdbarch, file, frame,
|
|
E_PSEUDO_EXR_REGNUM (gdbarch));
|
|
else
|
|
h8300_print_register (gdbarch, file, frame, regno);
|
|
}
|
|
}
|
|
|
|
static struct type *
|
|
h8300_register_type (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
if (regno < 0 || regno >= gdbarch_num_regs (gdbarch)
|
|
+ gdbarch_num_pseudo_regs (gdbarch))
|
|
internal_error (__FILE__, __LINE__,
|
|
_("h8300_register_type: illegal register number %d"),
|
|
regno);
|
|
else
|
|
{
|
|
switch (regno)
|
|
{
|
|
case E_PC_REGNUM:
|
|
return builtin_type (gdbarch)->builtin_func_ptr;
|
|
case E_SP_REGNUM:
|
|
case E_FP_REGNUM:
|
|
return builtin_type (gdbarch)->builtin_data_ptr;
|
|
default:
|
|
if (regno == E_PSEUDO_CCR_REGNUM (gdbarch))
|
|
return builtin_type (gdbarch)->builtin_uint8;
|
|
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch))
|
|
return builtin_type (gdbarch)->builtin_uint8;
|
|
else if (is_h8300hmode (gdbarch))
|
|
return builtin_type (gdbarch)->builtin_int32;
|
|
else
|
|
return builtin_type (gdbarch)->builtin_int16;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Helpers for h8300_pseudo_register_read. We expose ccr/exr as
|
|
pseudo-registers to users with smaller sizes than the corresponding
|
|
raw registers. These helpers extend/narrow the values. */
|
|
|
|
static enum register_status
|
|
pseudo_from_raw_register (struct gdbarch *gdbarch, struct regcache *regcache,
|
|
gdb_byte *buf, int pseudo_regno, int raw_regno)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
enum register_status status;
|
|
ULONGEST val;
|
|
|
|
status = regcache_raw_read_unsigned (regcache, raw_regno, &val);
|
|
if (status == REG_VALID)
|
|
store_unsigned_integer (buf,
|
|
register_size (gdbarch, pseudo_regno),
|
|
byte_order, val);
|
|
return status;
|
|
}
|
|
|
|
/* See pseudo_from_raw_register. */
|
|
|
|
static void
|
|
raw_from_pseudo_register (struct gdbarch *gdbarch, struct regcache *regcache,
|
|
const gdb_byte *buf, int raw_regno, int pseudo_regno)
|
|
{
|
|
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
|
|
ULONGEST val;
|
|
|
|
val = extract_unsigned_integer (buf, register_size (gdbarch, pseudo_regno),
|
|
byte_order);
|
|
regcache_raw_write_unsigned (regcache, raw_regno, val);
|
|
}
|
|
|
|
static enum register_status
|
|
h8300_pseudo_register_read (struct gdbarch *gdbarch,
|
|
struct regcache *regcache, int regno,
|
|
gdb_byte *buf)
|
|
{
|
|
if (regno == E_PSEUDO_CCR_REGNUM (gdbarch))
|
|
{
|
|
return pseudo_from_raw_register (gdbarch, regcache, buf,
|
|
regno, E_CCR_REGNUM);
|
|
}
|
|
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch))
|
|
{
|
|
return pseudo_from_raw_register (gdbarch, regcache, buf,
|
|
regno, E_EXR_REGNUM);
|
|
}
|
|
else
|
|
return regcache_raw_read (regcache, regno, buf);
|
|
}
|
|
|
|
static void
|
|
h8300_pseudo_register_write (struct gdbarch *gdbarch,
|
|
struct regcache *regcache, int regno,
|
|
const gdb_byte *buf)
|
|
{
|
|
if (regno == E_PSEUDO_CCR_REGNUM (gdbarch))
|
|
raw_from_pseudo_register (gdbarch, regcache, buf, E_CCR_REGNUM, regno);
|
|
else if (regno == E_PSEUDO_EXR_REGNUM (gdbarch))
|
|
raw_from_pseudo_register (gdbarch, regcache, buf, E_EXR_REGNUM, regno);
|
|
else
|
|
regcache_raw_write (regcache, regno, buf);
|
|
}
|
|
|
|
static int
|
|
h8300_dbg_reg_to_regnum (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
if (regno == E_CCR_REGNUM)
|
|
return E_PSEUDO_CCR_REGNUM (gdbarch);
|
|
return regno;
|
|
}
|
|
|
|
static int
|
|
h8300s_dbg_reg_to_regnum (struct gdbarch *gdbarch, int regno)
|
|
{
|
|
if (regno == E_CCR_REGNUM)
|
|
return E_PSEUDO_CCR_REGNUM (gdbarch);
|
|
if (regno == E_EXR_REGNUM)
|
|
return E_PSEUDO_EXR_REGNUM (gdbarch);
|
|
return regno;
|
|
}
|
|
|
|
static const unsigned char *
|
|
h8300_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr,
|
|
int *lenptr)
|
|
{
|
|
/*static unsigned char breakpoint[] = { 0x7A, 0xFF }; *//* ??? */
|
|
static unsigned char breakpoint[] = { 0x01, 0x80 }; /* Sleep */
|
|
|
|
*lenptr = sizeof (breakpoint);
|
|
return breakpoint;
|
|
}
|
|
|
|
static struct gdbarch *
|
|
h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
|
|
{
|
|
struct gdbarch_tdep *tdep = NULL;
|
|
struct gdbarch *gdbarch;
|
|
|
|
arches = gdbarch_list_lookup_by_info (arches, &info);
|
|
if (arches != NULL)
|
|
return arches->gdbarch;
|
|
|
|
#if 0
|
|
tdep = XNEW (struct gdbarch_tdep);
|
|
#endif
|
|
|
|
if (info.bfd_arch_info->arch != bfd_arch_h8300)
|
|
return NULL;
|
|
|
|
gdbarch = gdbarch_alloc (&info, 0);
|
|
|
|
set_gdbarch_register_sim_regno (gdbarch, h8300_register_sim_regno);
|
|
|
|
switch (info.bfd_arch_info->mach)
|
|
{
|
|
case bfd_mach_h8300:
|
|
set_gdbarch_num_regs (gdbarch, 13);
|
|
set_gdbarch_num_pseudo_regs (gdbarch, 1);
|
|
set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
|
|
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
|
|
set_gdbarch_stab_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
|
|
set_gdbarch_register_name (gdbarch, h8300_register_name);
|
|
set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
set_gdbarch_return_value (gdbarch, h8300_return_value);
|
|
set_gdbarch_print_insn (gdbarch, print_insn_h8300);
|
|
break;
|
|
case bfd_mach_h8300h:
|
|
case bfd_mach_h8300hn:
|
|
set_gdbarch_num_regs (gdbarch, 13);
|
|
set_gdbarch_num_pseudo_regs (gdbarch, 1);
|
|
set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
|
|
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
|
|
set_gdbarch_stab_reg_to_regnum (gdbarch, h8300_dbg_reg_to_regnum);
|
|
set_gdbarch_register_name (gdbarch, h8300_register_name);
|
|
if (info.bfd_arch_info->mach != bfd_mach_h8300hn)
|
|
{
|
|
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
}
|
|
else
|
|
{
|
|
set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
}
|
|
set_gdbarch_return_value (gdbarch, h8300h_return_value);
|
|
set_gdbarch_print_insn (gdbarch, print_insn_h8300h);
|
|
break;
|
|
case bfd_mach_h8300s:
|
|
case bfd_mach_h8300sn:
|
|
set_gdbarch_num_regs (gdbarch, 16);
|
|
set_gdbarch_num_pseudo_regs (gdbarch, 2);
|
|
set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
|
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
|
set_gdbarch_stab_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
|
set_gdbarch_register_name (gdbarch, h8300s_register_name);
|
|
if (info.bfd_arch_info->mach != bfd_mach_h8300sn)
|
|
{
|
|
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
}
|
|
else
|
|
{
|
|
set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
}
|
|
set_gdbarch_return_value (gdbarch, h8300h_return_value);
|
|
set_gdbarch_print_insn (gdbarch, print_insn_h8300s);
|
|
break;
|
|
case bfd_mach_h8300sx:
|
|
case bfd_mach_h8300sxn:
|
|
set_gdbarch_num_regs (gdbarch, 18);
|
|
set_gdbarch_num_pseudo_regs (gdbarch, 2);
|
|
set_gdbarch_ecoff_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
|
set_gdbarch_dwarf2_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
|
set_gdbarch_stab_reg_to_regnum (gdbarch, h8300s_dbg_reg_to_regnum);
|
|
set_gdbarch_register_name (gdbarch, h8300sx_register_name);
|
|
if (info.bfd_arch_info->mach != bfd_mach_h8300sxn)
|
|
{
|
|
set_gdbarch_ptr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
}
|
|
else
|
|
{
|
|
set_gdbarch_ptr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
set_gdbarch_addr_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
}
|
|
set_gdbarch_return_value (gdbarch, h8300h_return_value);
|
|
set_gdbarch_print_insn (gdbarch, print_insn_h8300s);
|
|
break;
|
|
}
|
|
|
|
set_gdbarch_pseudo_register_read (gdbarch, h8300_pseudo_register_read);
|
|
set_gdbarch_pseudo_register_write (gdbarch, h8300_pseudo_register_write);
|
|
|
|
/*
|
|
* Basic register fields and methods.
|
|
*/
|
|
|
|
set_gdbarch_sp_regnum (gdbarch, E_SP_REGNUM);
|
|
set_gdbarch_pc_regnum (gdbarch, E_PC_REGNUM);
|
|
set_gdbarch_register_type (gdbarch, h8300_register_type);
|
|
set_gdbarch_print_registers_info (gdbarch, h8300_print_registers_info);
|
|
|
|
/*
|
|
* Frame Info
|
|
*/
|
|
set_gdbarch_skip_prologue (gdbarch, h8300_skip_prologue);
|
|
|
|
/* Frame unwinder. */
|
|
set_gdbarch_unwind_pc (gdbarch, h8300_unwind_pc);
|
|
set_gdbarch_unwind_sp (gdbarch, h8300_unwind_sp);
|
|
set_gdbarch_dummy_id (gdbarch, h8300_dummy_id);
|
|
frame_base_set_default (gdbarch, &h8300_frame_base);
|
|
|
|
/*
|
|
* Miscelany
|
|
*/
|
|
/* Stack grows up. */
|
|
set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
|
|
|
|
set_gdbarch_breakpoint_from_pc (gdbarch, h8300_breakpoint_from_pc);
|
|
set_gdbarch_push_dummy_call (gdbarch, h8300_push_dummy_call);
|
|
|
|
set_gdbarch_char_signed (gdbarch, 0);
|
|
set_gdbarch_int_bit (gdbarch, 2 * TARGET_CHAR_BIT);
|
|
set_gdbarch_long_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
set_gdbarch_long_long_bit (gdbarch, 8 * TARGET_CHAR_BIT);
|
|
set_gdbarch_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
set_gdbarch_double_format (gdbarch, floatformats_ieee_single);
|
|
set_gdbarch_long_double_bit (gdbarch, 4 * TARGET_CHAR_BIT);
|
|
set_gdbarch_long_double_format (gdbarch, floatformats_ieee_single);
|
|
|
|
set_gdbarch_believe_pcc_promotion (gdbarch, 1);
|
|
|
|
/* Hook in the DWARF CFI frame unwinder. */
|
|
dwarf2_append_unwinders (gdbarch);
|
|
frame_unwind_append_unwinder (gdbarch, &h8300_frame_unwind);
|
|
|
|
return gdbarch;
|
|
|
|
}
|
|
|
|
extern initialize_file_ftype _initialize_h8300_tdep; /* -Wmissing-prototypes */
|
|
|
|
void
|
|
_initialize_h8300_tdep (void)
|
|
{
|
|
register_gdbarch_init (bfd_arch_h8300, h8300_gdbarch_init);
|
|
}
|
|
|
|
static int
|
|
is_h8300hmode (struct gdbarch *gdbarch)
|
|
{
|
|
return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sx
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300s
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sn
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300h
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300hn;
|
|
}
|
|
|
|
static int
|
|
is_h8300smode (struct gdbarch *gdbarch)
|
|
{
|
|
return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sx
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300s
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sn;
|
|
}
|
|
|
|
static int
|
|
is_h8300sxmode (struct gdbarch *gdbarch)
|
|
{
|
|
return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sx
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn;
|
|
}
|
|
|
|
static int
|
|
is_h8300_normal_mode (struct gdbarch *gdbarch)
|
|
{
|
|
return gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sxn
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300sn
|
|
|| gdbarch_bfd_arch_info (gdbarch)->mach == bfd_mach_h8300hn;
|
|
}
|