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Most allocation functions (if not all) return a void* pointing to the allocated memory. In C++, we need to add an explicit cast when assigning the result to a pointer to another type (which is the case more often than not). The content of this patch is taken from Pedro's branch, from commit "(mostly) auto-generated patch to insert casts needed for C++". I validated that the changes make sense and manually reflowed the code to make it respect the coding style. I also found multiple places where I could use XNEW/XNEWVEC/XRESIZEVEC/etc. Thanks a lot to whoever did that automated script to insert casts, doing it completely by hand would have taken a ridiculous amount of time. Only files built on x86 with --enable-targets=all are modified. This means that all other -nat.c files are untouched and will have to be dealt with later by using appropiate compilers. Or maybe we can try to build them with a regular g++ just to know where to add casts, I don't know. I built-tested this with --enable-targets=all and reg-tested. Here's the changelog entry, which was not too bad to make despite the size, thanks to David Malcom's script. I fixed some bits by hand, but there might be some wrong parts left (hopefully not). gdb/ChangeLog: * aarch64-linux-tdep.c (aarch64_stap_parse_special_token): Add cast to allocation result assignment. * ada-exp.y (write_object_renaming): Likewise. (write_ambiguous_var): Likewise. (ada_nget_field_index): Likewise. (write_var_or_type): Likewise. * ada-lang.c (ada_decode_symbol): Likewise. (ada_value_assign): Likewise. (value_pointer): Likewise. (cache_symbol): Likewise. (add_nonlocal_symbols): Likewise. (ada_name_for_lookup): Likewise. (symbol_completion_add): Likewise. (ada_to_fixed_type_1): Likewise. (ada_get_next_arg): Likewise. (defns_collected): Likewise. * ada-lex.l (processId): Likewise. (processString): Likewise. * ada-tasks.c (read_known_tasks_array): Likewise. (read_known_tasks_list): Likewise. * ada-typeprint.c (decoded_type_name): Likewise. * addrmap.c (addrmap_mutable_create_fixed): Likewise. * amd64-tdep.c (amd64_push_arguments): Likewise. (amd64_displaced_step_copy_insn): Likewise. (amd64_classify_insn_at): Likewise. (amd64_relocate_instruction): Likewise. * amd64obsd-tdep.c (amd64obsd_sigtramp_p): Likewise. * arch-utils.c (simple_displaced_step_copy_insn): Likewise. (initialize_current_architecture): Likewise. * arm-linux-tdep.c (arm_stap_parse_special_token): Likewise. * arm-symbian-tdep.c (arm_symbian_osabi_sniffer): Likewise. * arm-tdep.c (arm_exidx_new_objfile): Likewise. (arm_push_dummy_call): Likewise. (extend_buffer_earlier): Likewise. (arm_adjust_breakpoint_address): Likewise. (arm_skip_stub): Likewise. * auto-load.c (filename_is_in_pattern): Likewise. (maybe_add_script_file): Likewise. (maybe_add_script_text): Likewise. (auto_load_objfile_script_1): Likewise. * auxv.c (ld_so_xfer_auxv): Likewise. * ax-general.c (new_agent_expr): Likewise. (grow_expr): Likewise. (ax_reg_mask): Likewise. * bcache.c (bcache_full): Likewise. * breakpoint.c (program_breakpoint_here_p): Likewise. * btrace.c (parse_xml_raw): Likewise. * build-id.c (build_id_to_debug_bfd): Likewise. * buildsym.c (end_symtab_with_blockvector): Likewise. * c-exp.y (string_exp): Likewise. (qualified_name): Likewise. (write_destructor_name): Likewise. (operator_stoken): Likewise. (parse_number): Likewise. (scan_macro_expansion): Likewise. (yylex): Likewise. (c_print_token): Likewise. * c-lang.c (c_get_string): Likewise. (emit_numeric_character): Likewise. * charset.c (wchar_iterate): Likewise. * cli/cli-cmds.c (complete_command): Likewise. (make_command): Likewise. * cli/cli-dump.c (restore_section_callback): Likewise. (restore_binary_file): Likewise. * cli/cli-interp.c (cli_interpreter_exec): Likewise. * cli/cli-script.c (execute_control_command): Likewise. * cli/cli-setshow.c (do_set_command): Likewise. * coff-pe-read.c (add_pe_forwarded_sym): Likewise. (read_pe_exported_syms): Likewise. * coffread.c (coff_read_struct_type): Likewise. (coff_read_enum_type): Likewise. * common/btrace-common.c (btrace_data_append): Likewise. * common/buffer.c (buffer_grow): Likewise. * common/filestuff.c (gdb_fopen_cloexec): Likewise. * common/format.c (parse_format_string): Likewise. * common/gdb_vecs.c (delim_string_to_char_ptr_vec_append): Likewise. * common/xml-utils.c (xml_escape_text): Likewise. * compile/compile-object-load.c (copy_sections): Likewise. (compile_object_load): Likewise. * compile/compile-object-run.c (compile_object_run): Likewise. * completer.c (filename_completer): Likewise. * corefile.c (read_memory_typed_address): Likewise. (write_memory_unsigned_integer): Likewise. (write_memory_signed_integer): Likewise. (complete_set_gnutarget): Likewise. * corelow.c (get_core_register_section): Likewise. * cp-name-parser.y (d_grab): Likewise. (allocate_info): Likewise. (cp_new_demangle_parse_info): Likewise. * cp-namespace.c (cp_scan_for_anonymous_namespaces): Likewise. (cp_lookup_symbol_in_namespace): Likewise. (lookup_namespace_scope): Likewise. (find_symbol_in_baseclass): Likewise. (cp_lookup_nested_symbol): Likewise. (cp_lookup_transparent_type_loop): Likewise. * cp-support.c (copy_string_to_obstack): Likewise. (make_symbol_overload_list): Likewise. (make_symbol_overload_list_namespace): Likewise. (make_symbol_overload_list_adl_namespace): Likewise. (first_component_command): Likewise. * cp-valprint.c (cp_print_value): Likewise. * ctf.c (ctf_xfer_partial): Likewise. * d-exp.y (StringExp): Likewise. * d-namespace.c (d_lookup_symbol_in_module): Likewise. (lookup_module_scope): Likewise. (find_symbol_in_baseclass): Likewise. (d_lookup_nested_symbol): Likewise. * dbxread.c (find_stab_function_addr): Likewise. (read_dbx_symtab): Likewise. (dbx_end_psymtab): Likewise. (cp_set_block_scope): Likewise. * dcache.c (dcache_alloc): Likewise. * demangle.c (_initialize_demangler): Likewise. * dicos-tdep.c (dicos_load_module_p): Likewise. * dictionary.c (dict_create_hashed_expandable): Likewise. (dict_create_linear_expandable): Likewise. (expand_hashtable): Likewise. (add_symbol_linear_expandable): Likewise. * dwarf2-frame.c (add_cie): Likewise. (add_fde): Likewise. (dwarf2_build_frame_info): Likewise. * dwarf2expr.c (dwarf_expr_grow_stack): Likewise. (dwarf_expr_fetch_address): Likewise. (add_piece): Likewise. (execute_stack_op): Likewise. * dwarf2loc.c (chain_candidate): Likewise. (dwarf_entry_parameter_to_value): Likewise. (read_pieced_value): Likewise. (write_pieced_value): Likewise. * dwarf2read.c (dwarf2_read_section): Likewise. (add_type_unit): Likewise. (read_comp_units_from_section): Likewise. (fixup_go_packaging): Likewise. (dwarf2_compute_name): Likewise. (dwarf2_physname): Likewise. (create_dwo_unit_in_dwp_v1): Likewise. (create_dwo_unit_in_dwp_v2): Likewise. (read_func_scope): Likewise. (read_call_site_scope): Likewise. (dwarf2_attach_fields_to_type): Likewise. (process_structure_scope): Likewise. (mark_common_block_symbol_computed): Likewise. (read_common_block): Likewise. (abbrev_table_read_table): Likewise. (guess_partial_die_structure_name): Likewise. (fixup_partial_die): Likewise. (add_file_name): Likewise. (dwarf2_const_value_data): Likewise. (dwarf2_const_value_attr): Likewise. (build_error_marker_type): Likewise. (guess_full_die_structure_name): Likewise. (anonymous_struct_prefix): Likewise. (typename_concat): Likewise. (dwarf2_canonicalize_name): Likewise. (dwarf2_name): Likewise. (write_constant_as_bytes): Likewise. (dwarf2_fetch_constant_bytes): Likewise. (copy_string): Likewise. (parse_macro_definition): Likewise. * elfread.c (elf_symfile_segments): Likewise. (elf_rel_plt_read): Likewise. (elf_gnu_ifunc_resolve_by_cache): Likewise. (elf_gnu_ifunc_resolve_by_got): Likewise. (elf_read_minimal_symbols): Likewise. (elf_gnu_ifunc_record_cache): Likewise. * event-top.c (top_level_prompt): Likewise. (command_line_handler): Likewise. * exec.c (resize_section_table): Likewise. * expprint.c (print_subexp_standard): Likewise. * fbsd-tdep.c (fbsd_collect_regset_section_cb): Likewise. * findcmd.c (parse_find_args): Likewise. * findvar.c (address_from_register): Likewise. * frame.c (get_prev_frame_always): Likewise. * gdb_bfd.c (gdb_bfd_ref): Likewise. (get_section_descriptor): Likewise. * gdb_obstack.c (obconcat): Likewise. (obstack_strdup): Likewise. * gdbtypes.c (lookup_function_type_with_arguments): Likewise. (create_set_type): Likewise. (lookup_unsigned_typename): Likewise. (lookup_signed_typename): Likewise. (resolve_dynamic_union): Likewise. (resolve_dynamic_struct): Likewise. (add_dyn_prop): Likewise. (copy_dynamic_prop_list): Likewise. (arch_flags_type): Likewise. (append_composite_type_field_raw): Likewise. * gdbtypes.h (INIT_FUNC_SPECIFIC): Likewise. * gnu-v3-abi.c (gnuv3_rtti_type): Likewise. * go-exp.y (string_exp): Likewise. * go-lang.c (go_demangle): Likewise. * guile/guile.c (compute_scheme_string): Likewise. * guile/scm-cmd.c (gdbscm_parse_command_name): Likewise. (gdbscm_canonicalize_command_name): Likewise. * guile/scm-ports.c (ioscm_init_stdio_buffers): Likewise. (ioscm_init_memory_port): Likewise. (ioscm_reinit_memory_port): Likewise. * guile/scm-utils.c (gdbscm_gc_xstrdup): Likewise. (gdbscm_gc_dup_argv): Likewise. * h8300-tdep.c (h8300_push_dummy_call): Likewise. * hppa-tdep.c (internalize_unwinds): Likewise. (read_unwind_info): Likewise. * i386-cygwin-tdep.c (core_process_module_section): Likewise. (windows_core_xfer_shared_libraries): Likewise. * i386-tdep.c (i386_displaced_step_copy_insn): Likewise. (i386_stap_parse_special_token_triplet): Likewise. (i386_stap_parse_special_token_three_arg_disp): Likewise. * i386obsd-tdep.c (i386obsd_sigtramp_p): Likewise. * inf-child.c (inf_child_fileio_readlink): Likewise. * inf-ptrace.c (inf_ptrace_fetch_register): Likewise. (inf_ptrace_store_register): Likewise. * infrun.c (follow_exec): Likewise. (displaced_step_prepare_throw): Likewise. (save_stop_context): Likewise. (save_infcall_suspend_state): Likewise. * jit.c (jit_read_descriptor): Likewise. (jit_read_code_entry): Likewise. (jit_symtab_line_mapping_add_impl): Likewise. (finalize_symtab): Likewise. (jit_unwind_reg_get_impl): Likewise. * jv-exp.y (QualifiedName): Likewise. * jv-lang.c (get_java_utf8_name): Likewise. (type_from_class): Likewise. (java_demangle_type_signature): Likewise. (java_class_name_from_physname): Likewise. * jv-typeprint.c (java_type_print_base): Likewise. * jv-valprint.c (java_value_print): Likewise. * language.c (add_language): Likewise. * linespec.c (add_sal_to_sals_basic): Likewise. (add_sal_to_sals): Likewise. (decode_objc): Likewise. (find_linespec_symbols): Likewise. * linux-fork.c (fork_save_infrun_state): Likewise. * linux-nat.c (linux_nat_detach): Likewise. (linux_nat_fileio_readlink): Likewise. * linux-record.c (record_linux_sockaddr): Likewise. (record_linux_msghdr): Likewise. (Do): Likewise. * linux-tdep.c (linux_core_info_proc_mappings): Likewise. (linux_collect_regset_section_cb): Likewise. (linux_get_siginfo_data): Likewise. * linux-thread-db.c (try_thread_db_load_from_pdir_1): Likewise. (try_thread_db_load_from_dir): Likewise. (thread_db_load_search): Likewise. (info_auto_load_libthread_db): Likewise. * m32c-tdep.c (m32c_m16c_address_to_pointer): Likewise. (m32c_m16c_pointer_to_address): Likewise. * m68hc11-tdep.c (m68hc11_pseudo_register_write): Likewise. * m68k-tdep.c (m68k_get_longjmp_target): Likewise. * machoread.c (macho_check_dsym): Likewise. * macroexp.c (resize_buffer): Likewise. (gather_arguments): Likewise. (maybe_expand): Likewise. * macrotab.c (new_macro_key): Likewise. (new_source_file): Likewise. (new_macro_definition): Likewise. * mdebugread.c (parse_symbol): Likewise. (parse_type): Likewise. (parse_partial_symbols): Likewise. (psymtab_to_symtab_1): Likewise. * mem-break.c (default_memory_insert_breakpoint): Likewise. * mi/mi-cmd-break.c (mi_argv_to_format): Likewise. * mi/mi-main.c (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_read_memory_bytes): Likewise. (mi_cmd_data_write_memory_bytes): Likewise. (mi_cmd_trace_frame_collected): Likewise. * mi/mi-parse.c (mi_parse_argv): Likewise. (mi_parse): Likewise. * minidebug.c (lzma_open): Likewise. (lzma_pread): Likewise. * mips-tdep.c (mips_read_fp_register_single): Likewise. (mips_print_fp_register): Likewise. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Likewise. * mipsread.c (read_alphacoff_dynamic_symtab): Likewise. * mt-tdep.c (mt_register_name): Likewise. (mt_registers_info): Likewise. (mt_push_dummy_call): Likewise. * namespace.c (add_using_directive): Likewise. * nat/linux-btrace.c (perf_event_read): Likewise. (linux_enable_bts): Likewise. * nat/linux-osdata.c (linux_common_core_of_thread): Likewise. * nat/linux-ptrace.c (linux_ptrace_test_ret_to_nx): Likewise. * nto-tdep.c (nto_find_and_open_solib): Likewise. (nto_parse_redirection): Likewise. * objc-lang.c (objc_demangle): Likewise. (find_methods): Likewise. * objfiles.c (get_objfile_bfd_data): Likewise. (set_objfile_main_name): Likewise. (allocate_objfile): Likewise. (objfile_relocate): Likewise. (update_section_map): Likewise. * osabi.c (generic_elf_osabi_sniff_abi_tag_sections): Likewise. * p-exp.y (exp): Likewise. (yylex): Likewise. * p-valprint.c (pascal_object_print_value): Likewise. * parse.c (initialize_expout): Likewise. (mark_completion_tag): Likewise. (copy_name): Likewise. (parse_float): Likewise. (type_stack_reserve): Likewise. * ppc-linux-tdep.c (ppc_stap_parse_special_token): Likewise. (ppu2spu_prev_register): Likewise. * ppc-ravenscar-thread.c (supply_register_at_address): Likewise. * printcmd.c (printf_wide_c_string): Likewise. (printf_pointer): Likewise. * probe.c (parse_probes): Likewise. * python/py-cmd.c (gdbpy_parse_command_name): Likewise. (cmdpy_init): Likewise. * python/py-gdb-readline.c (gdbpy_readline_wrapper): Likewise. * python/py-symtab.c (set_sal): Likewise. * python/py-unwind.c (pyuw_sniffer): Likewise. * python/python.c (python_interactive_command): Likewise. (compute_python_string): Likewise. * ravenscar-thread.c (get_running_thread_id): Likewise. * record-full.c (record_full_exec_insn): Likewise. (record_full_core_open_1): Likewise. * regcache.c (regcache_raw_read_signed): Likewise. (regcache_raw_read_unsigned): Likewise. (regcache_cooked_read_signed): Likewise. (regcache_cooked_read_unsigned): Likewise. * remote-fileio.c (remote_fileio_func_open): Likewise. (remote_fileio_func_rename): Likewise. (remote_fileio_func_unlink): Likewise. (remote_fileio_func_stat): Likewise. (remote_fileio_func_system): Likewise. * remote-mips.c (mips_xfer_memory): Likewise. (mips_load_srec): Likewise. (pmon_end_download): Likewise. * remote.c (new_remote_state): Likewise. (map_regcache_remote_table): Likewise. (remote_register_number_and_offset): Likewise. (init_remote_state): Likewise. (get_memory_packet_size): Likewise. (remote_pass_signals): Likewise. (remote_program_signals): Likewise. (remote_start_remote): Likewise. (remote_check_symbols): Likewise. (remote_query_supported): Likewise. (extended_remote_attach): Likewise. (process_g_packet): Likewise. (store_registers_using_G): Likewise. (putpkt_binary): Likewise. (read_frame): Likewise. (compare_sections_command): Likewise. (remote_hostio_pread): Likewise. (remote_hostio_readlink): Likewise. (remote_file_put): Likewise. (remote_file_get): Likewise. (remote_pid_to_exec_file): Likewise. (_initialize_remote): Likewise. * rs6000-aix-tdep.c (rs6000_aix_ld_info_to_xml): Likewise. (rs6000_aix_core_xfer_shared_libraries_aix): Likewise. * rs6000-tdep.c (ppc_displaced_step_copy_insn): Likewise. (bfd_uses_spe_extensions): Likewise. * s390-linux-tdep.c (s390_displaced_step_copy_insn): Likewise. * score-tdep.c (score7_malloc_and_get_memblock): Likewise. * solib-dsbt.c (decode_loadmap): Likewise. (fetch_loadmap): Likewise. (scan_dyntag): Likewise. (enable_break): Likewise. (dsbt_relocate_main_executable): Likewise. * solib-frv.c (fetch_loadmap): Likewise. (enable_break2): Likewise. (frv_relocate_main_executable): Likewise. * solib-spu.c (spu_relocate_main_executable): Likewise. (spu_bfd_open): Likewise. * solib-svr4.c (lm_info_read): Likewise. (read_program_header): Likewise. (find_program_interpreter): Likewise. (scan_dyntag): Likewise. (elf_locate_base): Likewise. (open_symbol_file_object): Likewise. (read_program_headers_from_bfd): Likewise. (svr4_relocate_main_executable): Likewise. * solib-target.c (solib_target_relocate_section_addresses): Likewise. * solib.c (solib_find_1): Likewise. (exec_file_find): Likewise. (solib_find): Likewise. * source.c (openp): Likewise. (print_source_lines_base): Likewise. (forward_search_command): Likewise. * sparc-ravenscar-thread.c (supply_register_at_address): Likewise. * spu-tdep.c (spu2ppu_prev_register): Likewise. (spu_get_overlay_table): Likewise. * stabsread.c (patch_block_stabs): Likewise. (define_symbol): Likewise. (again:): Likewise. (read_member_functions): Likewise. (read_one_struct_field): Likewise. (read_enum_type): Likewise. (common_block_start): Likewise. * stack.c (read_frame_arg): Likewise. (backtrace_command): Likewise. * stap-probe.c (stap_parse_register_operand): Likewise. * symfile.c (syms_from_objfile_1): Likewise. (find_separate_debug_file): Likewise. (load_command): Likewise. (load_progress): Likewise. (load_section_callback): Likewise. (reread_symbols): Likewise. (add_filename_language): Likewise. (allocate_compunit_symtab): Likewise. (read_target_long_array): Likewise. (simple_read_overlay_table): Likewise. * symtab.c (symbol_set_names): Likewise. (resize_symbol_cache): Likewise. (rbreak_command): Likewise. (completion_list_add_name): Likewise. (completion_list_objc_symbol): Likewise. (add_filename_to_list): Likewise. * target-descriptions.c (maint_print_c_tdesc_cmd): Likewise. * target-memory.c (target_write_memory_blocks): Likewise. * target.c (target_read_string): Likewise. (read_whatever_is_readable): Likewise. (target_read_alloc_1): Likewise. (simple_search_memory): Likewise. (target_fileio_read_alloc_1): Likewise. * tilegx-tdep.c (tilegx_push_dummy_call): Likewise. * top.c (command_line_input): Likewise. * tracefile-tfile.c (tfile_fetch_registers): Likewise. * tracefile.c (tracefile_fetch_registers): Likewise. * tracepoint.c (add_memrange): Likewise. (init_collection_list): Likewise. (add_aexpr): Likewise. (trace_dump_actions): Likewise. (parse_trace_status): Likewise. (parse_tracepoint_definition): Likewise. (parse_tsv_definition): Likewise. (parse_static_tracepoint_marker_definition): Likewise. * tui/tui-file.c (tui_sfileopen): Likewise. (tui_file_adjust_strbuf): Likewise. * tui/tui-io.c (tui_expand_tabs): Likewise. * tui/tui-source.c (tui_set_source_content): Likewise. * typeprint.c (find_global_typedef): Likewise. * ui-file.c (do_ui_file_xstrdup): Likewise. (ui_file_obsavestring): Likewise. (mem_file_write): Likewise. * utils.c (make_hex_string): Likewise. (get_regcomp_error): Likewise. (puts_filtered_tabular): Likewise. (gdb_realpath_keepfile): Likewise. (ldirname): Likewise. (gdb_bfd_errmsg): Likewise. (substitute_path_component): Likewise. * valops.c (search_struct_method): Likewise. (find_oload_champ_namespace_loop): Likewise. * valprint.c (print_decimal_chars): Likewise. (read_string): Likewise. (generic_emit_char): Likewise. * varobj.c (varobj_delete): Likewise. (varobj_value_get_print_value): Likewise. * vaxobsd-tdep.c (vaxobsd_sigtramp_sniffer): Likewise. * windows-tdep.c (display_one_tib): Likewise. * xcoffread.c (read_xcoff_symtab): Likewise. (process_xcoff_symbol): Likewise. (swap_sym): Likewise. (scan_xcoff_symtab): Likewise. (xcoff_initial_scan): Likewise. * xml-support.c (gdb_xml_end_element): Likewise. (xml_process_xincludes): Likewise. (xml_fetch_content_from_file): Likewise. * xml-syscall.c (xml_list_of_syscalls): Likewise. * xstormy16-tdep.c (xstormy16_push_dummy_call): Likewise. gdb/gdbserver/ChangeLog: * ax.c (gdb_parse_agent_expr): Add cast to allocation result assignment. (gdb_unparse_agent_expr): Likewise. * hostio.c (require_data): Likewise. (handle_pread): Likewise. * linux-low.c (disable_regset): Likewise. (fetch_register): Likewise. (store_register): Likewise. (get_dynamic): Likewise. (linux_qxfer_libraries_svr4): Likewise. * mem-break.c (delete_fast_tracepoint_jump): Likewise. (set_fast_tracepoint_jump): Likewise. (uninsert_fast_tracepoint_jumps_at): Likewise. (reinsert_fast_tracepoint_jumps_at): Likewise. (validate_inserted_breakpoint): Likewise. (clone_agent_expr): Likewise. * regcache.c (init_register_cache): Likewise. * remote-utils.c (putpkt_binary_1): Likewise. (decode_M_packet): Likewise. (decode_X_packet): Likewise. (look_up_one_symbol): Likewise. (relocate_instruction): Likewise. (monitor_output): Likewise. * server.c (handle_search_memory): Likewise. (handle_qxfer_exec_file): Likewise. (handle_qxfer_libraries): Likewise. (handle_qxfer): Likewise. (handle_query): Likewise. (handle_v_cont): Likewise. (handle_v_run): Likewise. (captured_main): Likewise. * target.c (write_inferior_memory): Likewise. * thread-db.c (try_thread_db_load_from_dir): Likewise. * tracepoint.c (init_trace_buffer): Likewise. (add_tracepoint_action): Likewise. (add_traceframe): Likewise. (add_traceframe_block): Likewise. (cmd_qtdpsrc): Likewise. (cmd_qtdv): Likewise. (cmd_qtstatus): Likewise. (response_source): Likewise. (response_tsv): Likewise. (cmd_qtnotes): Likewise. (gdb_collect): Likewise. (initialize_tracepoint): Likewise.
1103 lines
33 KiB
C
1103 lines
33 KiB
C
/* C language support routines for GDB, the GNU debugger.
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Copyright (C) 1992-2015 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/>. */
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#include "defs.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "parser-defs.h"
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#include "language.h"
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#include "varobj.h"
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#include "c-lang.h"
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#include "valprint.h"
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#include "macroscope.h"
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#include "charset.h"
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#include "demangle.h"
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#include "cp-abi.h"
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#include "cp-support.h"
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#include "gdb_obstack.h"
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#include <ctype.h>
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#include "gdbcore.h"
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extern void _initialize_c_language (void);
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/* Given a C string type, STR_TYPE, return the corresponding target
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character set name. */
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static const char *
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charset_for_string_type (enum c_string_type str_type,
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struct gdbarch *gdbarch)
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{
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switch (str_type & ~C_CHAR)
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{
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case C_STRING:
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return target_charset (gdbarch);
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case C_WIDE_STRING:
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return target_wide_charset (gdbarch);
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case C_STRING_16:
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/* FIXME: UTF-16 is not always correct. */
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if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
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return "UTF-16BE";
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else
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return "UTF-16LE";
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case C_STRING_32:
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/* FIXME: UTF-32 is not always correct. */
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if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
|
||
return "UTF-32BE";
|
||
else
|
||
return "UTF-32LE";
|
||
}
|
||
internal_error (__FILE__, __LINE__, _("unhandled c_string_type"));
|
||
}
|
||
|
||
/* Classify ELTTYPE according to what kind of character it is. Return
|
||
the enum constant representing the character type. Also set
|
||
*ENCODING to the name of the character set to use when converting
|
||
characters of this type in target BYTE_ORDER to the host character
|
||
set. */
|
||
|
||
static enum c_string_type
|
||
classify_type (struct type *elttype, struct gdbarch *gdbarch,
|
||
const char **encoding)
|
||
{
|
||
enum c_string_type result;
|
||
|
||
/* We loop because ELTTYPE may be a typedef, and we want to
|
||
successively peel each typedef until we reach a type we
|
||
understand. We don't use CHECK_TYPEDEF because that will strip
|
||
all typedefs at once -- but in C, wchar_t is itself a typedef, so
|
||
that would do the wrong thing. */
|
||
while (elttype)
|
||
{
|
||
const char *name = TYPE_NAME (elttype);
|
||
|
||
if (TYPE_CODE (elttype) == TYPE_CODE_CHAR || !name)
|
||
{
|
||
result = C_CHAR;
|
||
goto done;
|
||
}
|
||
|
||
if (!strcmp (name, "wchar_t"))
|
||
{
|
||
result = C_WIDE_CHAR;
|
||
goto done;
|
||
}
|
||
|
||
if (!strcmp (name, "char16_t"))
|
||
{
|
||
result = C_CHAR_16;
|
||
goto done;
|
||
}
|
||
|
||
if (!strcmp (name, "char32_t"))
|
||
{
|
||
result = C_CHAR_32;
|
||
goto done;
|
||
}
|
||
|
||
if (TYPE_CODE (elttype) != TYPE_CODE_TYPEDEF)
|
||
break;
|
||
|
||
/* Call for side effects. */
|
||
check_typedef (elttype);
|
||
|
||
if (TYPE_TARGET_TYPE (elttype))
|
||
elttype = TYPE_TARGET_TYPE (elttype);
|
||
else
|
||
{
|
||
/* Perhaps check_typedef did not update the target type. In
|
||
this case, force the lookup again and hope it works out.
|
||
It never will for C, but it might for C++. */
|
||
elttype = check_typedef (elttype);
|
||
}
|
||
}
|
||
|
||
/* Punt. */
|
||
result = C_CHAR;
|
||
|
||
done:
|
||
if (encoding)
|
||
*encoding = charset_for_string_type (result, gdbarch);
|
||
|
||
return result;
|
||
}
|
||
|
||
/* Print the character C on STREAM as part of the contents of a
|
||
literal string whose delimiter is QUOTER. Note that that format
|
||
for printing characters and strings is language specific. */
|
||
|
||
void
|
||
c_emit_char (int c, struct type *type,
|
||
struct ui_file *stream, int quoter)
|
||
{
|
||
const char *encoding;
|
||
|
||
classify_type (type, get_type_arch (type), &encoding);
|
||
generic_emit_char (c, type, stream, quoter, encoding);
|
||
}
|
||
|
||
void
|
||
c_printchar (int c, struct type *type, struct ui_file *stream)
|
||
{
|
||
enum c_string_type str_type;
|
||
|
||
str_type = classify_type (type, get_type_arch (type), NULL);
|
||
switch (str_type)
|
||
{
|
||
case C_CHAR:
|
||
break;
|
||
case C_WIDE_CHAR:
|
||
fputc_filtered ('L', stream);
|
||
break;
|
||
case C_CHAR_16:
|
||
fputc_filtered ('u', stream);
|
||
break;
|
||
case C_CHAR_32:
|
||
fputc_filtered ('U', stream);
|
||
break;
|
||
}
|
||
|
||
fputc_filtered ('\'', stream);
|
||
LA_EMIT_CHAR (c, type, stream, '\'');
|
||
fputc_filtered ('\'', stream);
|
||
}
|
||
|
||
/* Print the character string STRING, printing at most LENGTH
|
||
characters. LENGTH is -1 if the string is nul terminated. Each
|
||
character is WIDTH bytes long. Printing stops early if the number
|
||
hits print_max; repeat counts are printed as appropriate. Print
|
||
ellipses at the end if we had to stop before printing LENGTH
|
||
characters, or if FORCE_ELLIPSES. */
|
||
|
||
void
|
||
c_printstr (struct ui_file *stream, struct type *type,
|
||
const gdb_byte *string, unsigned int length,
|
||
const char *user_encoding, int force_ellipses,
|
||
const struct value_print_options *options)
|
||
{
|
||
enum c_string_type str_type;
|
||
const char *type_encoding;
|
||
const char *encoding;
|
||
|
||
str_type = (classify_type (type, get_type_arch (type), &type_encoding)
|
||
& ~C_CHAR);
|
||
switch (str_type)
|
||
{
|
||
case C_STRING:
|
||
break;
|
||
case C_WIDE_STRING:
|
||
fputs_filtered ("L", stream);
|
||
break;
|
||
case C_STRING_16:
|
||
fputs_filtered ("u", stream);
|
||
break;
|
||
case C_STRING_32:
|
||
fputs_filtered ("U", stream);
|
||
break;
|
||
}
|
||
|
||
encoding = (user_encoding && *user_encoding) ? user_encoding : type_encoding;
|
||
|
||
generic_printstr (stream, type, string, length, encoding, force_ellipses,
|
||
'"', 1, options);
|
||
}
|
||
|
||
/* Obtain a C string from the inferior storing it in a newly allocated
|
||
buffer in BUFFER, which should be freed by the caller. If the in-
|
||
and out-parameter *LENGTH is specified at -1, the string is read
|
||
until a null character of the appropriate width is found, otherwise
|
||
the string is read to the length of characters specified. The size
|
||
of a character is determined by the length of the target type of
|
||
the pointer or array.
|
||
|
||
If VALUE is an array with a known length, and *LENGTH is -1,
|
||
the function will not read past the end of the array. However, any
|
||
declared size of the array is ignored if *LENGTH > 0.
|
||
|
||
On completion, *LENGTH will be set to the size of the string read in
|
||
characters. (If a length of -1 is specified, the length returned
|
||
will not include the null character). CHARSET is always set to the
|
||
target charset. */
|
||
|
||
void
|
||
c_get_string (struct value *value, gdb_byte **buffer,
|
||
int *length, struct type **char_type,
|
||
const char **charset)
|
||
{
|
||
int err, width;
|
||
unsigned int fetchlimit;
|
||
struct type *type = check_typedef (value_type (value));
|
||
struct type *element_type = TYPE_TARGET_TYPE (type);
|
||
int req_length = *length;
|
||
enum bfd_endian byte_order
|
||
= gdbarch_byte_order (get_type_arch (type));
|
||
|
||
if (element_type == NULL)
|
||
goto error;
|
||
|
||
if (TYPE_CODE (type) == TYPE_CODE_ARRAY)
|
||
{
|
||
/* If we know the size of the array, we can use it as a limit on
|
||
the number of characters to be fetched. */
|
||
if (TYPE_NFIELDS (type) == 1
|
||
&& TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_RANGE)
|
||
{
|
||
LONGEST low_bound, high_bound;
|
||
|
||
get_discrete_bounds (TYPE_FIELD_TYPE (type, 0),
|
||
&low_bound, &high_bound);
|
||
fetchlimit = high_bound - low_bound + 1;
|
||
}
|
||
else
|
||
fetchlimit = UINT_MAX;
|
||
}
|
||
else if (TYPE_CODE (type) == TYPE_CODE_PTR)
|
||
fetchlimit = UINT_MAX;
|
||
else
|
||
/* We work only with arrays and pointers. */
|
||
goto error;
|
||
|
||
if (! c_textual_element_type (element_type, 0))
|
||
goto error;
|
||
classify_type (element_type, get_type_arch (element_type), charset);
|
||
width = TYPE_LENGTH (element_type);
|
||
|
||
/* If the string lives in GDB's memory instead of the inferior's,
|
||
then we just need to copy it to BUFFER. Also, since such strings
|
||
are arrays with known size, FETCHLIMIT will hold the size of the
|
||
array. */
|
||
if ((VALUE_LVAL (value) == not_lval
|
||
|| VALUE_LVAL (value) == lval_internalvar)
|
||
&& fetchlimit != UINT_MAX)
|
||
{
|
||
int i;
|
||
const gdb_byte *contents = value_contents (value);
|
||
|
||
/* If a length is specified, use that. */
|
||
if (*length >= 0)
|
||
i = *length;
|
||
else
|
||
/* Otherwise, look for a null character. */
|
||
for (i = 0; i < fetchlimit; i++)
|
||
if (extract_unsigned_integer (contents + i * width,
|
||
width, byte_order) == 0)
|
||
break;
|
||
|
||
/* I is now either a user-defined length, the number of non-null
|
||
characters, or FETCHLIMIT. */
|
||
*length = i * width;
|
||
*buffer = (gdb_byte *) xmalloc (*length);
|
||
memcpy (*buffer, contents, *length);
|
||
err = 0;
|
||
}
|
||
else
|
||
{
|
||
CORE_ADDR addr = value_as_address (value);
|
||
|
||
/* Prior to the fix for PR 16196 read_string would ignore fetchlimit
|
||
if length > 0. The old "broken" behaviour is the behaviour we want:
|
||
The caller may want to fetch 100 bytes from a variable length array
|
||
implemented using the common idiom of having an array of length 1 at
|
||
the end of a struct. In this case we want to ignore the declared
|
||
size of the array. However, it's counterintuitive to implement that
|
||
behaviour in read_string: what does fetchlimit otherwise mean if
|
||
length > 0. Therefore we implement the behaviour we want here:
|
||
If *length > 0, don't specify a fetchlimit. This preserves the
|
||
previous behaviour. We could move this check above where we know
|
||
whether the array is declared with a fixed size, but we only want
|
||
to apply this behaviour when calling read_string. PR 16286. */
|
||
if (*length > 0)
|
||
fetchlimit = UINT_MAX;
|
||
|
||
err = read_string (addr, *length, width, fetchlimit,
|
||
byte_order, buffer, length);
|
||
if (err)
|
||
{
|
||
xfree (*buffer);
|
||
memory_error (err, addr);
|
||
}
|
||
}
|
||
|
||
/* If the LENGTH is specified at -1, we want to return the string
|
||
length up to the terminating null character. If an actual length
|
||
was specified, we want to return the length of exactly what was
|
||
read. */
|
||
if (req_length == -1)
|
||
/* If the last character is null, subtract it from LENGTH. */
|
||
if (*length > 0
|
||
&& extract_unsigned_integer (*buffer + *length - width,
|
||
width, byte_order) == 0)
|
||
*length -= width;
|
||
|
||
/* The read_string function will return the number of bytes read.
|
||
If length returned from read_string was > 0, return the number of
|
||
characters read by dividing the number of bytes by width. */
|
||
if (*length != 0)
|
||
*length = *length / width;
|
||
|
||
*char_type = element_type;
|
||
|
||
return;
|
||
|
||
error:
|
||
{
|
||
char *type_str;
|
||
|
||
type_str = type_to_string (type);
|
||
if (type_str)
|
||
{
|
||
make_cleanup (xfree, type_str);
|
||
error (_("Trying to read string with inappropriate type `%s'."),
|
||
type_str);
|
||
}
|
||
else
|
||
error (_("Trying to read string with inappropriate type."));
|
||
}
|
||
}
|
||
|
||
|
||
/* Evaluating C and C++ expressions. */
|
||
|
||
/* Convert a UCN. The digits of the UCN start at P and extend no
|
||
farther than LIMIT. DEST_CHARSET is the name of the character set
|
||
into which the UCN should be converted. The results are written to
|
||
OUTPUT. LENGTH is the maximum length of the UCN, either 4 or 8.
|
||
Returns a pointer to just after the final digit of the UCN. */
|
||
|
||
static char *
|
||
convert_ucn (char *p, char *limit, const char *dest_charset,
|
||
struct obstack *output, int length)
|
||
{
|
||
unsigned long result = 0;
|
||
gdb_byte data[4];
|
||
int i;
|
||
|
||
for (i = 0; i < length && p < limit && isxdigit (*p); ++i, ++p)
|
||
result = (result << 4) + host_hex_value (*p);
|
||
|
||
for (i = 3; i >= 0; --i)
|
||
{
|
||
data[i] = result & 0xff;
|
||
result >>= 8;
|
||
}
|
||
|
||
convert_between_encodings ("UTF-32BE", dest_charset, data,
|
||
4, 4, output, translit_none);
|
||
|
||
return p;
|
||
}
|
||
|
||
/* Emit a character, VALUE, which was specified numerically, to
|
||
OUTPUT. TYPE is the target character type. */
|
||
|
||
static void
|
||
emit_numeric_character (struct type *type, unsigned long value,
|
||
struct obstack *output)
|
||
{
|
||
gdb_byte *buffer;
|
||
|
||
buffer = (gdb_byte *) alloca (TYPE_LENGTH (type));
|
||
pack_long (buffer, type, value);
|
||
obstack_grow (output, buffer, TYPE_LENGTH (type));
|
||
}
|
||
|
||
/* Convert an octal escape sequence. TYPE is the target character
|
||
type. The digits of the escape sequence begin at P and extend no
|
||
farther than LIMIT. The result is written to OUTPUT. Returns a
|
||
pointer to just after the final digit of the escape sequence. */
|
||
|
||
static char *
|
||
convert_octal (struct type *type, char *p,
|
||
char *limit, struct obstack *output)
|
||
{
|
||
int i;
|
||
unsigned long value = 0;
|
||
|
||
for (i = 0;
|
||
i < 3 && p < limit && isdigit (*p) && *p != '8' && *p != '9';
|
||
++i)
|
||
{
|
||
value = 8 * value + host_hex_value (*p);
|
||
++p;
|
||
}
|
||
|
||
emit_numeric_character (type, value, output);
|
||
|
||
return p;
|
||
}
|
||
|
||
/* Convert a hex escape sequence. TYPE is the target character type.
|
||
The digits of the escape sequence begin at P and extend no farther
|
||
than LIMIT. The result is written to OUTPUT. Returns a pointer to
|
||
just after the final digit of the escape sequence. */
|
||
|
||
static char *
|
||
convert_hex (struct type *type, char *p,
|
||
char *limit, struct obstack *output)
|
||
{
|
||
unsigned long value = 0;
|
||
|
||
while (p < limit && isxdigit (*p))
|
||
{
|
||
value = 16 * value + host_hex_value (*p);
|
||
++p;
|
||
}
|
||
|
||
emit_numeric_character (type, value, output);
|
||
|
||
return p;
|
||
}
|
||
|
||
#define ADVANCE \
|
||
do { \
|
||
++p; \
|
||
if (p == limit) \
|
||
error (_("Malformed escape sequence")); \
|
||
} while (0)
|
||
|
||
/* Convert an escape sequence to a target format. TYPE is the target
|
||
character type to use, and DEST_CHARSET is the name of the target
|
||
character set. The backslash of the escape sequence is at *P, and
|
||
the escape sequence will not extend past LIMIT. The results are
|
||
written to OUTPUT. Returns a pointer to just past the final
|
||
character of the escape sequence. */
|
||
|
||
static char *
|
||
convert_escape (struct type *type, const char *dest_charset,
|
||
char *p, char *limit, struct obstack *output)
|
||
{
|
||
/* Skip the backslash. */
|
||
ADVANCE;
|
||
|
||
switch (*p)
|
||
{
|
||
case '\\':
|
||
obstack_1grow (output, '\\');
|
||
++p;
|
||
break;
|
||
|
||
case 'x':
|
||
ADVANCE;
|
||
if (!isxdigit (*p))
|
||
error (_("\\x used with no following hex digits."));
|
||
p = convert_hex (type, p, limit, output);
|
||
break;
|
||
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7':
|
||
p = convert_octal (type, p, limit, output);
|
||
break;
|
||
|
||
case 'u':
|
||
case 'U':
|
||
{
|
||
int length = *p == 'u' ? 4 : 8;
|
||
|
||
ADVANCE;
|
||
if (!isxdigit (*p))
|
||
error (_("\\u used with no following hex digits"));
|
||
p = convert_ucn (p, limit, dest_charset, output, length);
|
||
}
|
||
}
|
||
|
||
return p;
|
||
}
|
||
|
||
/* Given a single string from a (C-specific) OP_STRING list, convert
|
||
it to a target string, handling escape sequences specially. The
|
||
output is written to OUTPUT. DATA is the input string, which has
|
||
length LEN. DEST_CHARSET is the name of the target character set,
|
||
and TYPE is the type of target character to use. */
|
||
|
||
static void
|
||
parse_one_string (struct obstack *output, char *data, int len,
|
||
const char *dest_charset, struct type *type)
|
||
{
|
||
char *limit;
|
||
|
||
limit = data + len;
|
||
|
||
while (data < limit)
|
||
{
|
||
char *p = data;
|
||
|
||
/* Look for next escape, or the end of the input. */
|
||
while (p < limit && *p != '\\')
|
||
++p;
|
||
/* If we saw a run of characters, convert them all. */
|
||
if (p > data)
|
||
convert_between_encodings (host_charset (), dest_charset,
|
||
(gdb_byte *) data, p - data, 1,
|
||
output, translit_none);
|
||
/* If we saw an escape, convert it. */
|
||
if (p < limit)
|
||
p = convert_escape (type, dest_charset, p, limit, output);
|
||
data = p;
|
||
}
|
||
}
|
||
|
||
/* Expression evaluator for the C language family. Most operations
|
||
are delegated to evaluate_subexp_standard; see that function for a
|
||
description of the arguments. */
|
||
|
||
struct value *
|
||
evaluate_subexp_c (struct type *expect_type, struct expression *exp,
|
||
int *pos, enum noside noside)
|
||
{
|
||
enum exp_opcode op = exp->elts[*pos].opcode;
|
||
|
||
switch (op)
|
||
{
|
||
case OP_STRING:
|
||
{
|
||
int oplen, limit;
|
||
struct type *type;
|
||
struct obstack output;
|
||
struct cleanup *cleanup;
|
||
struct value *result;
|
||
enum c_string_type dest_type;
|
||
const char *dest_charset;
|
||
int satisfy_expected = 0;
|
||
|
||
obstack_init (&output);
|
||
cleanup = make_cleanup_obstack_free (&output);
|
||
|
||
++*pos;
|
||
oplen = longest_to_int (exp->elts[*pos].longconst);
|
||
|
||
++*pos;
|
||
limit = *pos + BYTES_TO_EXP_ELEM (oplen + 1);
|
||
dest_type
|
||
= (enum c_string_type) longest_to_int (exp->elts[*pos].longconst);
|
||
switch (dest_type & ~C_CHAR)
|
||
{
|
||
case C_STRING:
|
||
type = language_string_char_type (exp->language_defn,
|
||
exp->gdbarch);
|
||
break;
|
||
case C_WIDE_STRING:
|
||
type = lookup_typename (exp->language_defn, exp->gdbarch,
|
||
"wchar_t", NULL, 0);
|
||
break;
|
||
case C_STRING_16:
|
||
type = lookup_typename (exp->language_defn, exp->gdbarch,
|
||
"char16_t", NULL, 0);
|
||
break;
|
||
case C_STRING_32:
|
||
type = lookup_typename (exp->language_defn, exp->gdbarch,
|
||
"char32_t", NULL, 0);
|
||
break;
|
||
default:
|
||
internal_error (__FILE__, __LINE__, _("unhandled c_string_type"));
|
||
}
|
||
|
||
/* Ensure TYPE_LENGTH is valid for TYPE. */
|
||
check_typedef (type);
|
||
|
||
/* If the caller expects an array of some integral type,
|
||
satisfy them. If something odder is expected, rely on the
|
||
caller to cast. */
|
||
if (expect_type && TYPE_CODE (expect_type) == TYPE_CODE_ARRAY)
|
||
{
|
||
struct type *element_type
|
||
= check_typedef (TYPE_TARGET_TYPE (expect_type));
|
||
|
||
if (TYPE_CODE (element_type) == TYPE_CODE_INT
|
||
|| TYPE_CODE (element_type) == TYPE_CODE_CHAR)
|
||
{
|
||
type = element_type;
|
||
satisfy_expected = 1;
|
||
}
|
||
}
|
||
|
||
dest_charset = charset_for_string_type (dest_type, exp->gdbarch);
|
||
|
||
++*pos;
|
||
while (*pos < limit)
|
||
{
|
||
int len;
|
||
|
||
len = longest_to_int (exp->elts[*pos].longconst);
|
||
|
||
++*pos;
|
||
if (noside != EVAL_SKIP)
|
||
parse_one_string (&output, &exp->elts[*pos].string, len,
|
||
dest_charset, type);
|
||
*pos += BYTES_TO_EXP_ELEM (len);
|
||
}
|
||
|
||
/* Skip the trailing length and opcode. */
|
||
*pos += 2;
|
||
|
||
if (noside == EVAL_SKIP)
|
||
{
|
||
/* Return a dummy value of the appropriate type. */
|
||
if (expect_type != NULL)
|
||
result = allocate_value (expect_type);
|
||
else if ((dest_type & C_CHAR) != 0)
|
||
result = allocate_value (type);
|
||
else
|
||
result = value_cstring ("", 0, type);
|
||
do_cleanups (cleanup);
|
||
return result;
|
||
}
|
||
|
||
if ((dest_type & C_CHAR) != 0)
|
||
{
|
||
LONGEST value;
|
||
|
||
if (obstack_object_size (&output) != TYPE_LENGTH (type))
|
||
error (_("Could not convert character "
|
||
"constant to target character set"));
|
||
value = unpack_long (type, (gdb_byte *) obstack_base (&output));
|
||
result = value_from_longest (type, value);
|
||
}
|
||
else
|
||
{
|
||
int i;
|
||
|
||
/* Write the terminating character. */
|
||
for (i = 0; i < TYPE_LENGTH (type); ++i)
|
||
obstack_1grow (&output, 0);
|
||
|
||
if (satisfy_expected)
|
||
{
|
||
LONGEST low_bound, high_bound;
|
||
int element_size = TYPE_LENGTH (type);
|
||
|
||
if (get_discrete_bounds (TYPE_INDEX_TYPE (expect_type),
|
||
&low_bound, &high_bound) < 0)
|
||
{
|
||
low_bound = 0;
|
||
high_bound = (TYPE_LENGTH (expect_type) / element_size) - 1;
|
||
}
|
||
if (obstack_object_size (&output) / element_size
|
||
> (high_bound - low_bound + 1))
|
||
error (_("Too many array elements"));
|
||
|
||
result = allocate_value (expect_type);
|
||
memcpy (value_contents_raw (result), obstack_base (&output),
|
||
obstack_object_size (&output));
|
||
}
|
||
else
|
||
result = value_cstring (obstack_base (&output),
|
||
obstack_object_size (&output),
|
||
type);
|
||
}
|
||
do_cleanups (cleanup);
|
||
return result;
|
||
}
|
||
break;
|
||
|
||
default:
|
||
break;
|
||
}
|
||
return evaluate_subexp_standard (expect_type, exp, pos, noside);
|
||
}
|
||
|
||
|
||
|
||
/* Table mapping opcodes into strings for printing operators
|
||
and precedences of the operators. */
|
||
|
||
const struct op_print c_op_print_tab[] =
|
||
{
|
||
{",", BINOP_COMMA, PREC_COMMA, 0},
|
||
{"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
|
||
{"||", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
|
||
{"&&", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
|
||
{"|", BINOP_BITWISE_IOR, PREC_BITWISE_IOR, 0},
|
||
{"^", BINOP_BITWISE_XOR, PREC_BITWISE_XOR, 0},
|
||
{"&", BINOP_BITWISE_AND, PREC_BITWISE_AND, 0},
|
||
{"==", BINOP_EQUAL, PREC_EQUAL, 0},
|
||
{"!=", BINOP_NOTEQUAL, PREC_EQUAL, 0},
|
||
{"<=", BINOP_LEQ, PREC_ORDER, 0},
|
||
{">=", BINOP_GEQ, PREC_ORDER, 0},
|
||
{">", BINOP_GTR, PREC_ORDER, 0},
|
||
{"<", BINOP_LESS, PREC_ORDER, 0},
|
||
{">>", BINOP_RSH, PREC_SHIFT, 0},
|
||
{"<<", BINOP_LSH, PREC_SHIFT, 0},
|
||
{"+", BINOP_ADD, PREC_ADD, 0},
|
||
{"-", BINOP_SUB, PREC_ADD, 0},
|
||
{"*", BINOP_MUL, PREC_MUL, 0},
|
||
{"/", BINOP_DIV, PREC_MUL, 0},
|
||
{"%", BINOP_REM, PREC_MUL, 0},
|
||
{"@", BINOP_REPEAT, PREC_REPEAT, 0},
|
||
{"+", UNOP_PLUS, PREC_PREFIX, 0},
|
||
{"-", UNOP_NEG, PREC_PREFIX, 0},
|
||
{"!", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
|
||
{"~", UNOP_COMPLEMENT, PREC_PREFIX, 0},
|
||
{"*", UNOP_IND, PREC_PREFIX, 0},
|
||
{"&", UNOP_ADDR, PREC_PREFIX, 0},
|
||
{"sizeof ", UNOP_SIZEOF, PREC_PREFIX, 0},
|
||
{"++", UNOP_PREINCREMENT, PREC_PREFIX, 0},
|
||
{"--", UNOP_PREDECREMENT, PREC_PREFIX, 0},
|
||
{NULL, OP_NULL, PREC_PREFIX, 0}
|
||
};
|
||
|
||
enum c_primitive_types {
|
||
c_primitive_type_int,
|
||
c_primitive_type_long,
|
||
c_primitive_type_short,
|
||
c_primitive_type_char,
|
||
c_primitive_type_float,
|
||
c_primitive_type_double,
|
||
c_primitive_type_void,
|
||
c_primitive_type_long_long,
|
||
c_primitive_type_signed_char,
|
||
c_primitive_type_unsigned_char,
|
||
c_primitive_type_unsigned_short,
|
||
c_primitive_type_unsigned_int,
|
||
c_primitive_type_unsigned_long,
|
||
c_primitive_type_unsigned_long_long,
|
||
c_primitive_type_long_double,
|
||
c_primitive_type_complex,
|
||
c_primitive_type_double_complex,
|
||
c_primitive_type_decfloat,
|
||
c_primitive_type_decdouble,
|
||
c_primitive_type_declong,
|
||
nr_c_primitive_types
|
||
};
|
||
|
||
void
|
||
c_language_arch_info (struct gdbarch *gdbarch,
|
||
struct language_arch_info *lai)
|
||
{
|
||
const struct builtin_type *builtin = builtin_type (gdbarch);
|
||
|
||
lai->string_char_type = builtin->builtin_char;
|
||
lai->primitive_type_vector
|
||
= GDBARCH_OBSTACK_CALLOC (gdbarch, nr_c_primitive_types + 1,
|
||
struct type *);
|
||
lai->primitive_type_vector [c_primitive_type_int] = builtin->builtin_int;
|
||
lai->primitive_type_vector [c_primitive_type_long] = builtin->builtin_long;
|
||
lai->primitive_type_vector [c_primitive_type_short] = builtin->builtin_short;
|
||
lai->primitive_type_vector [c_primitive_type_char] = builtin->builtin_char;
|
||
lai->primitive_type_vector [c_primitive_type_float] = builtin->builtin_float;
|
||
lai->primitive_type_vector [c_primitive_type_double] = builtin->builtin_double;
|
||
lai->primitive_type_vector [c_primitive_type_void] = builtin->builtin_void;
|
||
lai->primitive_type_vector [c_primitive_type_long_long] = builtin->builtin_long_long;
|
||
lai->primitive_type_vector [c_primitive_type_signed_char] = builtin->builtin_signed_char;
|
||
lai->primitive_type_vector [c_primitive_type_unsigned_char] = builtin->builtin_unsigned_char;
|
||
lai->primitive_type_vector [c_primitive_type_unsigned_short] = builtin->builtin_unsigned_short;
|
||
lai->primitive_type_vector [c_primitive_type_unsigned_int] = builtin->builtin_unsigned_int;
|
||
lai->primitive_type_vector [c_primitive_type_unsigned_long] = builtin->builtin_unsigned_long;
|
||
lai->primitive_type_vector [c_primitive_type_unsigned_long_long] = builtin->builtin_unsigned_long_long;
|
||
lai->primitive_type_vector [c_primitive_type_long_double] = builtin->builtin_long_double;
|
||
lai->primitive_type_vector [c_primitive_type_complex] = builtin->builtin_complex;
|
||
lai->primitive_type_vector [c_primitive_type_double_complex] = builtin->builtin_double_complex;
|
||
lai->primitive_type_vector [c_primitive_type_decfloat] = builtin->builtin_decfloat;
|
||
lai->primitive_type_vector [c_primitive_type_decdouble] = builtin->builtin_decdouble;
|
||
lai->primitive_type_vector [c_primitive_type_declong] = builtin->builtin_declong;
|
||
|
||
lai->bool_type_default = builtin->builtin_int;
|
||
}
|
||
|
||
const struct exp_descriptor exp_descriptor_c =
|
||
{
|
||
print_subexp_standard,
|
||
operator_length_standard,
|
||
operator_check_standard,
|
||
op_name_standard,
|
||
dump_subexp_body_standard,
|
||
evaluate_subexp_c
|
||
};
|
||
|
||
const struct language_defn c_language_defn =
|
||
{
|
||
"c", /* Language name */
|
||
"C",
|
||
language_c,
|
||
range_check_off,
|
||
case_sensitive_on,
|
||
array_row_major,
|
||
macro_expansion_c,
|
||
&exp_descriptor_c,
|
||
c_parse,
|
||
c_error,
|
||
null_post_parser,
|
||
c_printchar, /* Print a character constant */
|
||
c_printstr, /* Function to print string constant */
|
||
c_emit_char, /* Print a single char */
|
||
c_print_type, /* Print a type using appropriate syntax */
|
||
c_print_typedef, /* Print a typedef using appropriate syntax */
|
||
c_val_print, /* Print a value using appropriate syntax */
|
||
c_value_print, /* Print a top-level value */
|
||
default_read_var_value, /* la_read_var_value */
|
||
NULL, /* Language specific skip_trampoline */
|
||
NULL, /* name_of_this */
|
||
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
|
||
basic_lookup_transparent_type,/* lookup_transparent_type */
|
||
NULL, /* Language specific symbol demangler */
|
||
NULL, /* Language specific
|
||
class_name_from_physname */
|
||
c_op_print_tab, /* expression operators for printing */
|
||
1, /* c-style arrays */
|
||
0, /* String lower bound */
|
||
default_word_break_characters,
|
||
default_make_symbol_completion_list,
|
||
c_language_arch_info,
|
||
default_print_array_index,
|
||
default_pass_by_reference,
|
||
c_get_string,
|
||
NULL, /* la_get_symbol_name_cmp */
|
||
iterate_over_symbols,
|
||
&c_varobj_ops,
|
||
c_get_compile_context,
|
||
c_compute_program,
|
||
LANG_MAGIC
|
||
};
|
||
|
||
enum cplus_primitive_types {
|
||
cplus_primitive_type_int,
|
||
cplus_primitive_type_long,
|
||
cplus_primitive_type_short,
|
||
cplus_primitive_type_char,
|
||
cplus_primitive_type_float,
|
||
cplus_primitive_type_double,
|
||
cplus_primitive_type_void,
|
||
cplus_primitive_type_long_long,
|
||
cplus_primitive_type_signed_char,
|
||
cplus_primitive_type_unsigned_char,
|
||
cplus_primitive_type_unsigned_short,
|
||
cplus_primitive_type_unsigned_int,
|
||
cplus_primitive_type_unsigned_long,
|
||
cplus_primitive_type_unsigned_long_long,
|
||
cplus_primitive_type_long_double,
|
||
cplus_primitive_type_complex,
|
||
cplus_primitive_type_double_complex,
|
||
cplus_primitive_type_bool,
|
||
cplus_primitive_type_decfloat,
|
||
cplus_primitive_type_decdouble,
|
||
cplus_primitive_type_declong,
|
||
nr_cplus_primitive_types
|
||
};
|
||
|
||
static void
|
||
cplus_language_arch_info (struct gdbarch *gdbarch,
|
||
struct language_arch_info *lai)
|
||
{
|
||
const struct builtin_type *builtin = builtin_type (gdbarch);
|
||
|
||
lai->string_char_type = builtin->builtin_char;
|
||
lai->primitive_type_vector
|
||
= GDBARCH_OBSTACK_CALLOC (gdbarch, nr_cplus_primitive_types + 1,
|
||
struct type *);
|
||
lai->primitive_type_vector [cplus_primitive_type_int]
|
||
= builtin->builtin_int;
|
||
lai->primitive_type_vector [cplus_primitive_type_long]
|
||
= builtin->builtin_long;
|
||
lai->primitive_type_vector [cplus_primitive_type_short]
|
||
= builtin->builtin_short;
|
||
lai->primitive_type_vector [cplus_primitive_type_char]
|
||
= builtin->builtin_char;
|
||
lai->primitive_type_vector [cplus_primitive_type_float]
|
||
= builtin->builtin_float;
|
||
lai->primitive_type_vector [cplus_primitive_type_double]
|
||
= builtin->builtin_double;
|
||
lai->primitive_type_vector [cplus_primitive_type_void]
|
||
= builtin->builtin_void;
|
||
lai->primitive_type_vector [cplus_primitive_type_long_long]
|
||
= builtin->builtin_long_long;
|
||
lai->primitive_type_vector [cplus_primitive_type_signed_char]
|
||
= builtin->builtin_signed_char;
|
||
lai->primitive_type_vector [cplus_primitive_type_unsigned_char]
|
||
= builtin->builtin_unsigned_char;
|
||
lai->primitive_type_vector [cplus_primitive_type_unsigned_short]
|
||
= builtin->builtin_unsigned_short;
|
||
lai->primitive_type_vector [cplus_primitive_type_unsigned_int]
|
||
= builtin->builtin_unsigned_int;
|
||
lai->primitive_type_vector [cplus_primitive_type_unsigned_long]
|
||
= builtin->builtin_unsigned_long;
|
||
lai->primitive_type_vector [cplus_primitive_type_unsigned_long_long]
|
||
= builtin->builtin_unsigned_long_long;
|
||
lai->primitive_type_vector [cplus_primitive_type_long_double]
|
||
= builtin->builtin_long_double;
|
||
lai->primitive_type_vector [cplus_primitive_type_complex]
|
||
= builtin->builtin_complex;
|
||
lai->primitive_type_vector [cplus_primitive_type_double_complex]
|
||
= builtin->builtin_double_complex;
|
||
lai->primitive_type_vector [cplus_primitive_type_bool]
|
||
= builtin->builtin_bool;
|
||
lai->primitive_type_vector [cplus_primitive_type_decfloat]
|
||
= builtin->builtin_decfloat;
|
||
lai->primitive_type_vector [cplus_primitive_type_decdouble]
|
||
= builtin->builtin_decdouble;
|
||
lai->primitive_type_vector [cplus_primitive_type_declong]
|
||
= builtin->builtin_declong;
|
||
|
||
lai->bool_type_symbol = "bool";
|
||
lai->bool_type_default = builtin->builtin_bool;
|
||
}
|
||
|
||
const struct language_defn cplus_language_defn =
|
||
{
|
||
"c++", /* Language name */
|
||
"C++",
|
||
language_cplus,
|
||
range_check_off,
|
||
case_sensitive_on,
|
||
array_row_major,
|
||
macro_expansion_c,
|
||
&exp_descriptor_c,
|
||
c_parse,
|
||
c_error,
|
||
null_post_parser,
|
||
c_printchar, /* Print a character constant */
|
||
c_printstr, /* Function to print string constant */
|
||
c_emit_char, /* Print a single char */
|
||
c_print_type, /* Print a type using appropriate syntax */
|
||
c_print_typedef, /* Print a typedef using appropriate syntax */
|
||
c_val_print, /* Print a value using appropriate syntax */
|
||
c_value_print, /* Print a top-level value */
|
||
default_read_var_value, /* la_read_var_value */
|
||
cplus_skip_trampoline, /* Language specific skip_trampoline */
|
||
"this", /* name_of_this */
|
||
cp_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
|
||
cp_lookup_transparent_type, /* lookup_transparent_type */
|
||
gdb_demangle, /* Language specific symbol demangler */
|
||
cp_class_name_from_physname, /* Language specific
|
||
class_name_from_physname */
|
||
c_op_print_tab, /* expression operators for printing */
|
||
1, /* c-style arrays */
|
||
0, /* String lower bound */
|
||
default_word_break_characters,
|
||
default_make_symbol_completion_list,
|
||
cplus_language_arch_info,
|
||
default_print_array_index,
|
||
cp_pass_by_reference,
|
||
c_get_string,
|
||
NULL, /* la_get_symbol_name_cmp */
|
||
iterate_over_symbols,
|
||
&cplus_varobj_ops,
|
||
NULL,
|
||
NULL,
|
||
LANG_MAGIC
|
||
};
|
||
|
||
const struct language_defn asm_language_defn =
|
||
{
|
||
"asm", /* Language name */
|
||
"assembly",
|
||
language_asm,
|
||
range_check_off,
|
||
case_sensitive_on,
|
||
array_row_major,
|
||
macro_expansion_c,
|
||
&exp_descriptor_c,
|
||
c_parse,
|
||
c_error,
|
||
null_post_parser,
|
||
c_printchar, /* Print a character constant */
|
||
c_printstr, /* Function to print string constant */
|
||
c_emit_char, /* Print a single char */
|
||
c_print_type, /* Print a type using appropriate syntax */
|
||
c_print_typedef, /* Print a typedef using appropriate syntax */
|
||
c_val_print, /* Print a value using appropriate syntax */
|
||
c_value_print, /* Print a top-level value */
|
||
default_read_var_value, /* la_read_var_value */
|
||
NULL, /* Language specific skip_trampoline */
|
||
NULL, /* name_of_this */
|
||
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
|
||
basic_lookup_transparent_type,/* lookup_transparent_type */
|
||
NULL, /* Language specific symbol demangler */
|
||
NULL, /* Language specific
|
||
class_name_from_physname */
|
||
c_op_print_tab, /* expression operators for printing */
|
||
1, /* c-style arrays */
|
||
0, /* String lower bound */
|
||
default_word_break_characters,
|
||
default_make_symbol_completion_list,
|
||
c_language_arch_info, /* FIXME: la_language_arch_info. */
|
||
default_print_array_index,
|
||
default_pass_by_reference,
|
||
c_get_string,
|
||
NULL, /* la_get_symbol_name_cmp */
|
||
iterate_over_symbols,
|
||
&default_varobj_ops,
|
||
NULL,
|
||
NULL,
|
||
LANG_MAGIC
|
||
};
|
||
|
||
/* The following language_defn does not represent a real language.
|
||
It just provides a minimal support a-la-C that should allow users
|
||
to do some simple operations when debugging applications that use
|
||
a language currently not supported by GDB. */
|
||
|
||
const struct language_defn minimal_language_defn =
|
||
{
|
||
"minimal", /* Language name */
|
||
"Minimal",
|
||
language_minimal,
|
||
range_check_off,
|
||
case_sensitive_on,
|
||
array_row_major,
|
||
macro_expansion_c,
|
||
&exp_descriptor_c,
|
||
c_parse,
|
||
c_error,
|
||
null_post_parser,
|
||
c_printchar, /* Print a character constant */
|
||
c_printstr, /* Function to print string constant */
|
||
c_emit_char, /* Print a single char */
|
||
c_print_type, /* Print a type using appropriate syntax */
|
||
c_print_typedef, /* Print a typedef using appropriate syntax */
|
||
c_val_print, /* Print a value using appropriate syntax */
|
||
c_value_print, /* Print a top-level value */
|
||
default_read_var_value, /* la_read_var_value */
|
||
NULL, /* Language specific skip_trampoline */
|
||
NULL, /* name_of_this */
|
||
basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
|
||
basic_lookup_transparent_type,/* lookup_transparent_type */
|
||
NULL, /* Language specific symbol demangler */
|
||
NULL, /* Language specific
|
||
class_name_from_physname */
|
||
c_op_print_tab, /* expression operators for printing */
|
||
1, /* c-style arrays */
|
||
0, /* String lower bound */
|
||
default_word_break_characters,
|
||
default_make_symbol_completion_list,
|
||
c_language_arch_info,
|
||
default_print_array_index,
|
||
default_pass_by_reference,
|
||
c_get_string,
|
||
NULL, /* la_get_symbol_name_cmp */
|
||
iterate_over_symbols,
|
||
&default_varobj_ops,
|
||
NULL,
|
||
NULL,
|
||
LANG_MAGIC
|
||
};
|
||
|
||
void
|
||
_initialize_c_language (void)
|
||
{
|
||
add_language (&c_language_defn);
|
||
add_language (&cplus_language_defn);
|
||
add_language (&asm_language_defn);
|
||
add_language (&minimal_language_defn);
|
||
}
|