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2017-11-24Create private_thread_info hierarchySimon Marchi1-75/+54
There are multiple definitions of the private_thread_info structure compiled in the same GDB build. Because of the one definition rule, we need to change this if we want to be able to make them non-POD (e.g. use std::vector fields). This patch creates a class hierarchy, with private_thread_info being an abstract base class, and all the specific implementations inheriting from it. In order to poison XNEW/xfree for non-POD types, it is also needed to get rid of the xfree in thread_info::~thread_info, which operates on an opaque type. This is replaced by thread_info::priv now being a unique_ptr, which calls the destructor of the private_thread_info subclass when the thread is being destroyed. Including gdbthread.h from darwin-nat.h gave these errors: /Users/simark/src/binutils-gdb/gdb/gdbthread.h:609:3: error: must use 'class' tag to refer to type 'thread_info' in this scope thread_info *m_thread; ^ class /usr/include/mach/thread_act.h:240:15: note: class 'thread_info' is hidden by a non-type declaration of 'thread_info' here kern_return_t thread_info ^ It turns out that there is a thread_info function in the Darwin/XNU/mach API: http://web.mit.edu/darwin/src/modules/xnu/osfmk/man/thread_info.html Therefore, I had to add the class keyword at a couple of places in gdbthread.h, I don't really see a way around it. gdb/ChangeLog: * gdbthread.h (private_thread_info): Define structure type, add virtual pure destructor. (thread_info) <priv>: Change type to unique_ptr. <private_dtor>: Remove. * thread.c (add_thread_with_info): Adjust to use of unique_ptr. (private_thread_info::~private_thread_info): Provide default implementation. (thread_info::~thread_info): Don't call private_dtor nor manually free priv. * aix-thread.c (private_thread_info): Rename to ... (aix_thread_info): ... this. (get_aix_thread_info): New. (sync_threadlists): Adjust. (iter_tid): Adjust. (aix_thread_resume): Adjust. (aix_thread_fetch_registers): Adjust. (aix_thread_store_registers): Adjust. (aix_thread_extra_thread_info): Adjust. * darwin-nat.h (private_thread_info): Rename to ... (darwin_thread_info): ... this. (get_darwin_thread_info): New. * darwin-nat.c (darwin_init_thread_list): Adjust. (darwin_check_new_threads): Adjust. (thread_info_from_private_thread_info): Adjust. * linux-thread-db.c (private_thread_info): Rename to ... (thread_db_thread_info): ... this, initialize fields. (get_thread_db_thread_info): New. <dying>: Change type to bool. (update_thread_state): Adjust to type rename. (record_thread): Adjust to type rename an use of unique_ptr. (thread_db_pid_to_str): Likewise. (thread_db_extra_thread_info): Likewise. (thread_db_thread_handle_to_thread_info): Likewise. (thread_db_get_thread_local_address): Likewise. * nto-tdep.h (private_thread_info): Rename to ... (nto_thread_info): ... this, initialize fields. (get_nto_thread_info): New. <name>: Change type to std::string. * nto-tdep.c (nto_extra_thread_info): Adjust to type rename and use of unique_ptr. * nto-procfs.c (update_thread_private_data_name): Adjust to std::string change, allocate nto_private_thread_info with new. (update_thread_private_data): Adjust to unique_ptr. * remote.c (private_thread_info): Rename to ... (remote_thread_info): ... this, initialize data members with default values. <extra, name>: Change type to std::string. <thread_handle>: Change type to non-pointer. (free_private_thread_info): Remove. (get_private_info_thread): Rename to... (get_remote_thread_info): ... this, change return type, adjust to use of unique_ptr, use remote_thread_info constructor. (remote_add_thread): Adjust. (get_private_info_ptid): Rename to... (get_remote_thread_info): ...this, change return type. (remote_thread_name): Use get_remote_thread_info, adjust to change to std::string. (struct thread_item) <~thread_item>: Remove. <thread_handle>: Make non pointer. (start_thread): Adjust to thread_item::thread_handle type change. (remote_update_thread_list): Adjust to type name change, move strings from temporary to long-lived object instead of duplicating. (remote_threads_extra_info): Use get_remote_thread_info. (process_initial_stop_replies): Likewise. (resume_clear_thread_private_info): Likewise. (remote_resume): Adjust to type name change. (remote_commit_resume): Use get_remote_thread_info. (process_stop_reply): Adjust to type name change. (remote_stopped_by_sw_breakpoint): Use get_remote_thread_info. (remote_stopped_by_hw_breakpoint): Likewise. (remote_stopped_by_watchpoint): Likewise. (remote_stopped_data_address): Likewise. (remote_core_of_thread): Likewise. (remote_thread_handle_to_thread_info): Use get_private_info_thread, adjust to thread_handle field type change.
2017-11-24remote: C++ify thread_item and threads_listing_contextSimon Marchi1-121/+76
This patch C++ifies the thread_item and threads_listing_context structures in remote.c. thread_item::{extra,name} are changed to std::string. As a result, there's a bit of awkwardness in remote_update_thread_list, where we have to xstrdup those strings when filling the private_thread_info structure. This is removed in the following patch, where private_thread_info is also C++ified and its corresponding fields made std::string too. The xstrdup then becomes an std::move. Other than that there's nothing really special, it's a usual day-to-day VEC -> vector and char* -> std::string change. It allows removing a cleanup in remote_update_thread_list. Note that an overload of hex2bin that returns a gdb::byte_vector is added, with corresponding selftests. gdb/ChangeLog: * remote.c (struct thread_item): Add constructor, disable copy construction and copy assignment, define default move construction and move assignment. <extra, name>: Change type to std::string. <core>: Initialize. <thread_handle>: Make non-pointer. (thread_item_t): Remove typedef. (DEF_VEC_O(thread_item_t)): Remove. (threads_listing_context) <contains_thread>: New method. <remove_thread>: New method. <items>: Change type to std::vector. (clear_threads_listing_context): Remove. (threads_listing_context_remove): Remove. (remote_newthread_step): Use thread_item constructor, adjust to change to std::vector. (start_thread): Use thread_item constructor, adjust to change to std::vector. (end_thread): Adjust to change to std::vector and std::string. (remote_get_threads_with_qthreadinfo): Use thread_item constructor, adjust to std::vector. (remote_update_thread_list): Adjust to change to std::vector and std::string, use threads_listing_context methods. (remove_child_of_pending_fork): Adjust. (remove_new_fork_children): Adjust. * Makefile.in (SUBDIR_UNITTESTS_SRCS): Add rsp-low-selftests.c. (SUBDIR_UNITTESTS_OBS): Add rsp-low-selftests.o. * unittests/rsp-low-selftests.c: New file. * common/rsp-low.h: Include common/byte-vector.h. (hex2bin): New overload. * common/rsp-low.c (hex2bin): New overload.
2017-11-24Create private_inferior class hierarchySimon Marchi1-10/+21
There are currently multiple definitions of private_inferior, defined in remote.c and darwin-nat.h. The patch that poisons XNEW and friends for non-POD types trips on that, because private_inferior is freed in ~inferior(), where it is an opaque type. Since the compiler can't tell whether the type is POD, it gives an error. Also, we can't start using C++ features in these structures (make them non-POD) as long as there are multiple definitions with the same name. For these reasons, this patch makes a class hierarchy, with private_inferior being the abstract base class, and darwin_inferior & remote_inferior inheriting from it. Destruction is done through the virtual destructor. I stumbled on some suspicious code in the darwin implementation though. darwin_check_new_threads does an XCNEW(darwin_thread_t) when it finds a new thread, allocating a new structure for it (darwin_thread_t is a typedef for private_thread_info). It then VEC_safe_pushes it in a vector defined as DEF_VEC_O (a vector of objects). This means that the structure content gets copied in the vector. The thread_info object is created with the XCNEW'ed structure as the private thread info, while the rest of the code works with the instance in the vector. We have therefore two distinct instances of darwin_thread_t/private_thread_info for each thread. This is not really a problem in practice, because thread_info::priv is not used in the darwin code. I still find it weird and far from ideal, so I tried to fix it by changing the vector to be a vector of pointers. There should now be a single instance of the structure for each thread. The deallocation of the darwin_thread_t/private_thread_info structure is done by the thread_info destructor. I am able to build on macOS, but not really test, since the port seems a bit broken. I am not able to debug reliably on the machine I have access to, which runs macOS 10.12.6. gdb/ChangeLog: * inferior.h (private_inferior): Define structure type, add virtual pure destructor. (inferior) <priv>: Change type to unique_ptr. * inferior.c (private_inferior::~private_inferior): Provide default implementation. (inferior::~inferior): Don't free priv field. (exit_inferior_1): Likewise. * darwin-nat.h (struct darwin_exception_info): Initialize fields. (darwin_exception_info): Remove typedef. (DEF_VEC_O (darwin_thread_t)); Remove. (private_inferior): Rename to ... (darwin_private_inferior): ... this, extend private_inferior. (get_darwin_inferior): New. <threads>: Change type to std::vector of darwin_thread_t pointers. * darwin-nat.c (darwin_check_new_threads): Adjust. (find_inferior_task_it): Adjust. (darwin_find_thread); Adjust. (darwin_suspend_inferior): Adjust. (darwin_resume_inferior): Adjust. (darwin_find_new_inferior): Adjust. (darwin_decode_notify_message): Adjust. (darwin_send_reply): Adjust. (darwin_resume_inferior_threads): Adjust. (darwin_suspend_inferior_threads): Adjust. (darwin_decode_message): Adjust. (darwin_wait): Adjust. (darwin_interrupt): Adjust. (darwin_deallocate_threads): Adjust. (darwin_mourn_inferior): Adjust, don't free private data. (darwin_reply_to_all_pending_messages): Adjust. (darwin_stop_inferior): Adjust. (darwin_setup_exceptions): Adjust. (darwin_kill_inferior): Adjust. (darwin_setup_request_notification): Adjust. (darwin_attach_pid): Adjust. (darwin_init_thread_list): Adjust. (darwin_setup_fake_stop_event): Adjust. (darwin_attach): Adjust. (darwin_detach): Adjust. (darwin_xfer_partial): Adjust. (set_enable_mach_exceptions): Adjust. (darwin_pid_to_exec_file): Adjust. (darwin_get_ada_task_ptid): Adjust. * darwin-nat-info.c (get_task_from_args): Adjust. (info_mach_ports_command): Adjust. (info_mach_region_command): Adjust. (info_mach_exceptions_command): Adjust. * remote.c (private_inferior): Rename to ... (remote_private_inferior): ... this, initialize fields. (get_remote_inferior); New. (remote_commit_resume): Use get_remote_inferior. (check_pending_event_prevents_wildcard_vcont_callback): Likewise.
2017-11-14Fix 'xfered>0' assertion in target.c for remote connectionPaul Carroll1-5/+6
We have a customer who is using a Corelis gdb server to connect to gdb. Occasionally, the gdb server will send a 0-byte block of memory for a read. When this happens, gdb gives an assertion from target.c: internal-error: target_xfer_partial: Assertion `*xfered_len > 0' failed. This problem is almost identical to that fixed in https://sourceware.org/ml/gdb-patches/2014-02/msg00636.html In this case, remote.c needs to be modified to return TARGET_XFER_EOF instead of TARGET_XFER_OK or TARGET_XFER_UNAVAILABLE when 0 bytes are transferred. gdb/ChangeLog: PR gdb/22388 * remote.c (remote_write_bytes_aux, remote_read_bytes_1, remote_read_bytes, remote_write_qxfer, remote_xfer_partial): Return TARGET_XFER_EOF if size of returned data is 0.
2017-11-08Make encode_actions_rsp use std::vectorSimon Marchi1-63/+37
Currently, encode_actions_rsp returns two malloc'ed arrays of malloc'ed strings (char *) by pointer. Change this to use std::vector<std::string>. This eliminates some cleanups in remote.c. Regtested on the buildbot. gdb/ChangeLog: * tracepoint.h (class collection_list) <stringify>: Return std::vector<std::string>. (encode_actions_rsp): Change parameters to std::vector<std::string> *. * tracepoint.c (collection_list::stringify): Return std::vector<std::string> and adjust accordingly. (encode_actions_rsp): Changee parameters to std::vector<std::string> and adjust accordingly. * remote.c (free_actions_list), free_actions_list_cleanup_wrapper): Remove. (remote_download_tracepoint): Adjust to std::vector.
2017-11-07Constify add_setshow_*Tom Tromey1-4/+4
This constifies the add_setshow_* family of functions, and then fixes up the fallout. The bulk of this patch was written by script. gdb/ChangeLog 2017-11-07 Tom Tromey <tom@tromey.com> * ada-lang.c (catch_ada_exception_command): Constify. (catch_assert_command): Constify. * break-catch-throw.c (catch_catch_command, catch_throw_command) (catch_rethrow_command): Constify. (catch_exception_command_1): Constify. * breakpoint.h (add_catch_command): Constify. * break-catch-syscall.c (catch_syscall_command_1): Constify. (catch_syscall_split_args): Constify. * break-catch-sig.c (catch_signal_command): Constify. (catch_signal_split_args): Constify. * cli/cli-decode.h (struct cmd_list_element) <function>: Use cmd_const_sfunc_ftype. * cli/cli-decode.c (add_setshow_cmd_full): Constify. (add_setshow_enum_cmd, add_setshow_auto_boolean_cmd) (add_setshow_boolean_cmd, add_setshow_filename_cmd) (add_setshow_string_cmd, struct cmd_list_element) (add_setshow_optional_filename_cmd, add_setshow_integer_cmd) (add_setshow_uinteger_cmd, add_setshow_zinteger_cmd) (add_setshow_zuinteger_unlimited_cmd, add_setshow_zuinteger_cmd): Constify. (set_cmd_sfunc): Constify. (empty_sfunc): Constify. * command.h (add_setshow_enum_cmd, add_setshow_auto_boolean_cmd) (add_setshow_boolean_cmd, add_setshow_filename_cmd) (add_setshow_string_cmd, add_setshow_string_noescape_cmd) (add_setshow_optional_filename_cmd, add_setshow_integer_cmd) (add_setshow_uinteger_cmd, add_setshow_zinteger_cmd) (add_setshow_zuinteger_cmd, add_setshow_zuinteger_unlimited_cmd): Constify. (set_cmd_sfunc): Constify. (cmd_sfunc_ftype): Remove. * compile/compile.c (set_compile_args): Constify. * infrun.c (set_disable_randomization): Constify. * infcmd.c (set_args_command, set_cwd_command): Constify. * breakpoint.c (set_condition_evaluation_mode): Constify. (add_catch_command): Constify. (catch_fork_command_1, catch_exec_command_1) (catch_load_command_1, catch_unload_command_1): Constify. (catch_load_or_unload): Constify. * guile/scm-param.c (pascm_set_func): Constify. (add_setshow_generic): Constify. * python/py-param.c (get_set_value): Constify. * top.h (set_verbose): Constify. * tui/tui-win.c (tui_set_var_cmd): Constify. * mi/mi-main.c (set_mi_async_command): Constify. * cli/cli-logging.c (set_logging_overwrite) (set_logging_redirect): Constify. * value.c (set_max_value_size): Constify. * valprint.c (set_input_radix, set_output_radix): Constify. * utils.c (set_width_command, set_height_command): Constify. * typeprint.c (set_print_type_methods, set_print_type_typedefs): Constify. * tracepoint.c (set_disconnected_tracing) (set_circular_trace_buffer, set_trace_buffer_size) (set_trace_user, set_trace_notes, set_trace_stop_notes): Constify. * top.c (set_history_size_command, set_verbose, set_editing) (set_gdb_datadir, set_history_filename): Constify. * target.c (set_targetdebug, maint_set_target_async_command) (maint_set_target_non_stop_command, set_target_permissions) (set_write_memory_permission): Constify. (open_target): Constify. * target-descriptions.c (set_tdesc_filename_cmd): Constify. * target-dcache.c (set_stack_cache, set_code_cache): Constify. * symtab.c (set_symbol_cache_size_handler): Constify. * symfile.c (set_ext_lang_command): Constify. * symfile-debug.c (set_debug_symfile): Constify. * source.c (set_directories_command): Constify. * solib.c (reload_shared_libraries, gdb_sysroot_changed): Constify. * serial.c (set_parity): Constify. * rs6000-tdep.c (powerpc_set_soft_float, powerpc_set_vector_abi): Constify. * remote.c (set_remote_exec_file, set_remotebreak) (set_remote_protocol_Z_packet_cmd, set_range_stepping): Constify. * record.c (set_record_insn_history_size) (set_record_call_history_size): Constify. * record-full.c (set_record_full_insn_max_num): Constify. * proc-api.c (set_procfs_trace_cmd, set_procfs_file_cmd): Constify. * osabi.c (set_osabi): Constify. * mips-tdep.c (set_mips64_transfers_32bit_regs) (reinit_frame_cache_sfunc, mips_abi_update): Constify. * maint.c (maintenance_set_profile_cmd): Constify. * linux-thread-db.c (set_libthread_db_search_path): Constify. * language.c (set_language_command, set_range_command) (set_case_command): Constify. * infrun.c (set_non_stop, set_observer_mode) (set_stop_on_solib_events, set_schedlock_func) (set_exec_direction_func): Constify. * infcmd.c (set_inferior_tty_command): Constify. * disasm.c (set_disassembler_options_sfunc): Constify. * demangle.c (set_demangling_command): Constify. * dcache.c (set_dcache_size, set_dcache_line_size): Constify. * cris-tdep.c (set_cris_version, set_cris_mode) (set_cris_dwarf2_cfi): Constify. * corefile.c (set_gnutarget_command): Constify. * charset.c (set_host_charset_sfunc, set_target_charset_sfunc) (set_target_wide_charset_sfunc): Constify. * breakpoint.c (update_dprintf_commands): Constify. * auto-load.c (set_auto_load_dir, set_auto_load_safe_path): Constify. * arm-tdep.c (set_fp_model_sfunc, arm_set_abi) (set_disassembly_style_sfunc): Constify. * arch-utils.c (set_endian, set_architecture): Constify. * alpha-tdep.c (reinit_frame_cache_sfunc): Constify. * agent.c (set_can_use_agent): Constify.
2017-11-07Constify add_comTom Tromey1-5/+5
This changes add_com to take a cmd_const_cfunc_ftype, and then fixes up all the command implementations. In most cases this is trivial. In a couple of places I had to again introduce a temporary non-const overload. These overloads will be removed when add_info is constified. gdb/ChangeLog 2017-11-07 Tom Tromey <tom@tromey.com> * solib.h (no_shared_libraries): Constify. * frame.h (return_command): Constify. * cli/cli-cmds.h (quit_command): Constify. * top.h (quit_command, execute_command): Constify. * target.h (flash_erase_command): Constify. * inferior.h (set_inferior_args, attach_command): Constify. * tracepoint.h (start_tracing, stop_tracing): Constify. * breakpoint.h (break_command, tbreak_command) (hbreak_command_wrapper, thbreak_command_wrapper) (rbreak_command_wrapper, watch_command_wrapper) (awatch_command_wrapper, rwatch_command_wrapper) (get_tracepoint_by_number): Constify. * symtab.c (info_variables_command, rbreak_command) (symtab_symbol_info): Constify. (info_variables_command): Add non-const overload. * top.c (dont_repeat_command): Constify. * breakpoint.c (ignore_command, commands_command) (condition_command, tbreak_command, hbreak_command) (thbreak_command, clear_command, break_command) (info_breakpoints_command, watch_command, rwatch_command) (awatch_command, trace_command, ftrace_command, strace_command) (trace_pass_command, break_range_command, dprintf_command) (agent_printf_command, get_tracepoint_by_number) (watch_maybe_just_location, trace_pass_command): Constify. (info_breakpoints_command): Add non-const overload. * tracefile.c (tsave_command): Constify. * infcmd.c (attach_command, disconnect_command, signal_command) (queue_signal_command, stepi_command, nexti_command) (finish_command, next_command, step_command, until_command) (advance_command, jump_command, continue_command, run_command) (start_command, starti_command, interrupt_command) (run_command_1, set_inferior_args, step_1): Constify. * inferior.c (add_inferior_command, remove_inferior_command) (clone_inferior_command): Constify. * linux-fork.c (checkpoint_command, restart_command): Constify. * windows-nat.c (signal_event_command): Constify. * guile/guile.c (guile_repl_command, guile_command): Constify. * printcmd.c (x_command, display_command, printf_command) (output_command, set_command, call_command, print_command) (eval_command): Constify. (non_const_set_command): Remove. (_initialize_printcmd): Update. * source.c (forward_search_command, reverse_search_command): Constify. * jit.c (jit_reader_load_command, jit_reader_unload_command): Constify. * infrun.c (handle_command): Constify. * memattr.c (mem_command): Constify. * stack.c (return_command, up_command, up_silently_command) (down_command, down_silently_command, frame_command) (backtrace_command, func_command, backtrace_command_1): Constify. (backtrace_command): Add non-const overload. * remote-sim.c (simulator_command): Constify. * exec.c (set_section_command): Constify. * tracepoint.c (tdump_command, trace_variable_command) (tstatus_command, tstop_command, tstart_command) (end_actions_pseudocommand, while_stepping_pseudocommand) (collect_pseudocommand, teval_pseudocommand, actions_command) (start_tracing, stop_tracing): Constify. * value.c (init_if_undefined_command): Constify. * tui/tui-stack.c (tui_update_command): Constify. * tui/tui-win.c (tui_refresh_all_command) (tui_set_tab_width_command, tui_set_win_height_command) (tui_set_focus_command, tui_scroll_forward_command) (tui_scroll_backward_command, tui_scroll_left_command) (tui_scroll_right_command, parse_scrolling_args, tui_set_focus) (tui_set_win_height): Constify. * tui/tui-layout.c (tui_layout_command): Constify. * procfs.c (proc_trace_syscalls, proc_trace_sysentry_cmd) (proc_trace_sysexit_cmd, proc_untrace_sysentry_cmd) (proc_untrace_sysexit_cmd): Constify. * remote.c (threadlist_test_cmd, threadinfo_test_cmd) (threadset_test_cmd, threadlist_update_test_cmd) (threadalive_test): Constify. * objc-lang.c (print_object_command): Constify. * command.h (add_com): Constify. * cli/cli-dump.c (restore_command): Constify. * cli/cli-cmds.c (pwd_command, echo_command, quit_command) (help_command, complete_command, shell_command, edit_command) (list_command, disassemble_command, make_command) (apropos_command, alias_command): Constify. * cli/cli-script.c (document_command, define_command) (while_command, if_command, validate_comname): Constify. * cli/cli-decode.c (struct cmd_list_element): Change type of "fun". * target.c (do_monitor_command, flash_erase_command): Constify. * regcache.c (reg_flush_command): Constify. * reverse.c (reverse_step, reverse_next, reverse_stepi) (reverse_nexti, reverse_continue, reverse_finish) (save_bookmark_command, goto_bookmark_command) (exec_reverse_once): Constify. * python/python.c (python_interactive_command, python_command): Constify. * typeprint.c (ptype_command, whatis_command, whatis_exp): Constify. * solib.c (sharedlibrary_command, no_shared_libraries): Constify. * gcore.c (gcore_command): Constify.
2017-10-30remote.c, QCatchSyscalls: Build std::string instead of unique_xmalloc_ptrPedro Alves1-15/+7
Simplify the code a little bit using std::string + string_appendf. gdb/ChangeLog: 2017-10-30 Pedro Alves <palves@redhat.com> Simon Marchi <simon.marchi@ericsson.com> * remote.c (remote_set_syscall_catchpoint): Build a std::string instead of a gdb::unique_xmalloc_ptr, using string_appendf.
2017-10-26Garbage collect remote.c:remote_async_terminal_ours_pPedro Alves1-21/+0
remote.c:remote_async_terminal_ours_p stopped being useful after 048094accce2 ("target remote: Don't rely on immediate_quit (introduce quit handlers)") and commit 41fd2b0f5d95 ("Make input_fd be per UI"), which turned remote's terminal_inferior/ours methods into nops. gdb/ChangeLog: 2017-10-26 Pedro Alves <palves@redhat.com> * remote.c (remote_async_terminal_ours_p): Delete. (remote_open_1, remote_terminal_inferior, remote_terminal_ours): Remove references to 'remote_async_terminal_ours_p'.
2017-10-25s/get_regcache_arch (regcache)/regcache->arch ()/gYao Qi1-7/+7
This patches removes get_regcache_arch, and use regache->arch () instead. The motivation of this change is that I am going to move some basic stuff into a base class of regcache. I don't need to update "client" code regcache->arch (). On the other hand, this patch shortens the code a little bit. gdb: 2017-10-25 Yao Qi <yao.qi@linaro.org> * aarch32-linux-nat.c (aarch32_gp_regcache_supply): Use regcache->arch () instead get_regcache_arch. * aarch64-fbsd-nat.c (aarch64_fbsd_fetch_inferior_registers): Likewise. (aarch64_fbsd_store_inferior_registers): Likewise. * aarch64-linux-nat.c (fetch_gregs_from_thread): Likewise. (store_gregs_to_thread): Likewise. (fetch_fpregs_from_thread): Likewise. (store_fpregs_to_thread): Likewise. * aarch64-tdep.c (aarch64_extract_return_value): Likewise. (aarch64_store_return_value): Likewise. (aarch64_software_single_step): Likewise. * aix-thread.c (aix_thread_wait): Likewise. (supply_reg32): Likewise. (supply_sprs64): Likewise. (supply_sprs32): Likewise. (fill_gprs64): Likewise. (fill_gprs32): Likewise. (fill_sprs64): Likewise. (fill_sprs32): Likewise. (store_regs_user_thread): Likewise. (store_regs_kernel_thread): Likewise. * alpha-bsd-nat.c (alphabsd_fetch_inferior_registers): Likewise. (alphabsd_store_inferior_registers): Likewise. * alpha-tdep.c (alpha_extract_return_value): Likewise. (alpha_store_return_value): Likewise. (alpha_deal_with_atomic_sequence): Likewise. (alpha_next_pc): Likewise. (alpha_software_single_step): Likewise. * amd64-bsd-nat.c (amd64bsd_fetch_inferior_registers): Likewise. (amd64bsd_store_inferior_registers): Likewise. * amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Likewise. (amd64_linux_store_inferior_registers): Likewise. * amd64-nat.c (amd64_supply_native_gregset): Likewise. (amd64_collect_native_gregset): Likewise. * amd64-obsd-tdep.c (amd64obsd_supply_uthread): Likewise. (amd64obsd_collect_uthread): Likewise. * amd64-tdep.c (amd64_supply_fpregset): Likewise. (amd64_collect_fpregset): Likewise. (amd64_supply_fxsave): Likewise. (amd64_supply_xsave): Likewise. (amd64_collect_fxsave): Likewise. (amd64_collect_xsave): Likewise. * arc-tdep.c (arc_write_pc): Likewise. * arch-utils.c (default_skip_permanent_breakpoint): Likewise. * arm-fbsd-nat.c (arm_fbsd_fetch_inferior_registers): Likewise. (arm_fbsd_store_inferior_registers): Likewise. * arm-linux-nat.c (fetch_vfp_regs): Likewise. (store_vfp_regs): Likewise. (arm_linux_fetch_inferior_registers): Likewise. (arm_linux_store_inferior_registers): Likewise. * arm-linux-tdep.c (arm_linux_supply_gregset): Likewise. (arm_linux_sigreturn_next_pc): Likewise. (arm_linux_get_next_pcs_syscall_next_pc): Likewise. * arm-nbsd-nat.c (arm_supply_gregset): Likewise. (fetch_register): Likewise. (store_register): Likewise. * arm-tdep.c (arm_is_thumb): Likewise. (displaced_in_arm_mode): Likewise. (bx_write_pc): Likewise. (arm_get_next_pcs_addr_bits_remove): Likewise. (arm_software_single_step): Likewise. (arm_extract_return_value): Likewise. (arm_store_return_value): Likewise. (arm_write_pc): Likewise. * bfin-tdep.c (bfin_extract_return_value): Likewise. * bsd-uthread.c (bsd_uthread_fetch_registers): Likewise. (bsd_uthread_store_registers): Likewise. * core-regset.c (fetch_core_registers): Likewise. * corelow.c (get_core_registers): Likewise. * cris-tdep.c (cris_store_return_value): Likewise. (cris_extract_return_value): Likewise. (find_step_target): Likewise. (find_step_target): Likewise. (cris_software_single_step): Likewise. * ctf.c (ctf_fetch_registers): Likewise. * darwin-nat.c (cancel_breakpoint): Likewise. * fbsd-tdep.c (fbsd_collect_thread_registers): Likewise. * frv-tdep.c (frv_extract_return_value): Likewise. * ft32-tdep.c (ft32_store_return_value): Likewise. (ft32_extract_return_value): Likewise. * go32-nat.c (fetch_register): Likewise. (go32_fetch_registers): Likewise. (go32_store_registers): Likewise. (store_register): Likewise. * h8300-tdep.c (h8300_extract_return_value): Likewise. (h8300_store_return_value): Likewise. * hppa-linux-nat.c (fetch_register): Likewise. (store_register): Likewise. (hppa_linux_fetch_inferior_registers): Likewise. (hppa_linux_store_inferior_registers): Likewise. * i386-darwin-nat.c (i386_darwin_fetch_inferior_registers): Likewise. (i386_darwin_store_inferior_registers): Likewise. * i386-gnu-nat.c (gnu_fetch_registers): Likewise. (gnu_store_registers): Likewise. * i386-linux-nat.c (fetch_register): Likewise. (store_register): Likewise. (supply_gregset): Likewise. (fill_gregset): Likewise. (i386_linux_fetch_inferior_registers): Likewise. (i386_linux_store_inferior_registers): Likewise. (i386_linux_resume): Likewise. * i386-linux-tdep.c (i386_linux_get_syscall_number_from_regcache): Likewise. * i386-nto-tdep.c (i386nto_supply_gregset): Likewise. * i386-obsd-nat.c (i386obsd_supply_pcb): Likewise. * i386-obsd-tdep.c (i386obsd_supply_uthread): Likewise. (i386obsd_collect_uthread): Likewise. * i386-tdep.c (i386_mmx_regnum_to_fp_regnum): Likewise. (i386_supply_gregset): Likewise. (i386_collect_gregset): Likewise. (i386_supply_fpregset): Likewise. (i386_collect_fpregset): Likewise. (i386_mpx_bd_base): Likewise. * i386-v4-nat.c (supply_fpregset): Likewise. (fill_fpregset): 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-linux-nat.c (ia64_linux_fetch_registers): Likewise. (ia64_linux_store_registers): Likewise. * ia64-tdep.c (ia64_access_rse_reg): Likewise. (ia64_extract_return_value): Likewise. (ia64_store_return_value): Likewise. (find_func_descr): Likewise. * inf-child.c (inf_child_fetch_inferior_registers): Likewise. * inf-ptrace.c (inf_ptrace_fetch_registers): Likewise. (inf_ptrace_store_registers): Likewise. * infrun.c (use_displaced_stepping): Likewise. (displaced_step_prepare_throw): Likewise. (resume): Likewise. (proceed): Likewise. (do_target_wait): Likewise. (adjust_pc_after_break): Likewise. (handle_inferior_event_1): Likewise. (handle_signal_stop): Likewise. (save_infcall_suspend_state): Likewise. (restore_infcall_suspend_state): Likewise. * iq2000-tdep.c (iq2000_extract_return_value): Likewise. * jit.c (jit_frame_prev_register): Likewise. * linux-nat.c (save_stop_reason): Likewise. (linux_nat_wait_1): Likewise. (resume_stopped_resumed_lwps): Likewise. * linux-record.c (record_linux_sockaddr): Likewise. (record_linux_msghdr): Likewise. (record_linux_system_call): Likewise. * linux-tdep.c (linux_collect_thread_registers): Likewise. * lm32-tdep.c (lm32_extract_return_value): Likewise. (lm32_store_return_value): Likewise. * m32c-tdep.c (m32c_read_flg): Likewise. (m32c_pseudo_register_read): Likewise. (m32c_pseudo_register_write): Likewise. * m32r-linux-tdep.c (m32r_linux_supply_gregset): Likewise. (m32r_linux_collect_gregset): Likewise. * m32r-tdep.c (m32r_store_return_value): Likewise. (m32r_extract_return_value): Likewise. * m68k-bsd-nat.c (m68kbsd_supply_fpregset): Likewise. (m68kbsd_collect_fpregset): Likewise. * m68k-bsd-tdep.c (m68kbsd_supply_fpregset): Likewise. * m68k-linux-nat.c (fetch_register): Likewise. (old_fetch_inferior_registers): Likewise. (old_store_inferior_registers): Likewise. (store_regs): Likewise. * m68k-tdep.c (m68k_svr4_extract_return_value): Likewise. (m68k_svr4_store_return_value): Likewise. * m88k-tdep.c (m88k_store_arguments): Likewise. * mi/mi-main.c (mi_cmd_data_list_changed_registers): Likewise. (mi_cmd_data_write_register_values): Likewise. * mips-fbsd-nat.c (mips_fbsd_fetch_inferior_registers): Likewise. (mips_fbsd_store_inferior_registers): Likewise. * mips-fbsd-tdep.c (mips_fbsd_supply_fpregs): Likewise. (mips_fbsd_supply_gregs): Likewise. (mips_fbsd_collect_fpregs): Likewise. (mips_fbsd_collect_gregs): Likewise. (mips_fbsd_supply_fpregset): Likewise. (mips_fbsd_collect_fpregset): Likewise. (mips_fbsd_supply_gregset): Likewise. (mips_fbsd_collect_gregset): Likewise. * mips-linux-nat.c (supply_gregset): Likewise. (fill_gregset): Likewise. (supply_fpregset): Likewise. (fill_fpregset): Likewise. * mips-linux-tdep.c (mips_supply_gregset): Likewise. (mips_fill_gregset): Likewise. (mips_supply_fpregset): Likewise. (mips_fill_fpregset): Likewise. (mips64_supply_gregset): Likewise. (micromips_linux_sigframe_validate): Likewise. * mips-nbsd-nat.c (mipsnbsd_fetch_inferior_registers): Likewise. (mipsnbsd_fetch_inferior_registers): Likewise. (mipsnbsd_store_inferior_registers): Likewise. * mips-nbsd-tdep.c (mipsnbsd_supply_fpregset): Likewise. (mipsnbsd_supply_gregset): Likewise. (mipsnbsd_iterate_over_regset_sections): Likewise. (mipsnbsd_supply_reg): Likewise. (mipsnbsd_supply_fpreg): Likewise. * mips-tdep.c (mips_in_frame_stub): Likewise. (mips_dummy_id): Likewise. (is_octeon_bbit_op): Likewise. (micromips_bc1_pc): Likewise. (extended_mips16_next_pc): Likewise. (mips16_next_pc): Likewise. (deal_with_atomic_sequence): Likewise. * moxie-tdep.c (moxie_process_readu): Likewise. * nios2-tdep.c (nios2_get_next_pc): Likewise. * nto-procfs.c (procfs_store_registers): Likewise. * ppc-fbsd-nat.c (ppcfbsd_fetch_inferior_registers): Likewise. (ppcfbsd_store_inferior_registers): Likewise. * ppc-linux-nat.c (fetch_vsx_register): Likewise. (fetch_altivec_register): Likewise. (get_spe_registers): Likewise. (fetch_spe_register): Likewise. (fetch_altivec_registers): Likewise. (fetch_all_gp_regs): Likewise. (fetch_all_fp_regs): Likewise. (store_vsx_register): Likewise. (store_altivec_register): Likewise. (set_spe_registers): Likewise. (store_spe_register): Likewise. (store_altivec_registers): Likewise. (store_all_gp_regs): Likewise. (store_all_fp_regs): Likewise. * ppc-linux-tdep.c (ppc_linux_supply_gregset): Likewise. (ppc_linux_collect_gregset): Likewise. (ppc_canonicalize_syscall): Likewise. (ppc_linux_record_signal): Likewise. (ppu2spu_prev_register): Likewise. * ppc-nbsd-nat.c (ppcnbsd_supply_pcb): Likewise. * ppc-obsd-nat.c (ppcobsd_fetch_registers): Likewise. (ppcobsd_store_registers): Likewise. * ppc-ravenscar-thread.c (ppc_ravenscar_generic_fetch_registers): Likewise. (ppc_ravenscar_generic_store_registers): Likewise. * procfs.c (procfs_fetch_registers): Likewise. (procfs_store_registers): Likewise. * ravenscar-thread.c (ravenscar_fetch_registers): Likewise. (ravenscar_store_registers): Likewise. (ravenscar_prepare_to_store): Likewise. * record-btrace.c (record_btrace_fetch_registers): Likewise. * record-full.c (record_full_wait_1): Likewise. (record_full_registers_change): Likewise. (record_full_store_registers): Likewise. (record_full_core_fetch_registers): Likewise. (record_full_save): Likewise. (record_full_goto_insn): Likewise. * regcache.c (regcache_register_size): Likewise. (get_regcache_arch): Remove. (regcache_read_pc): Likewise. * regcache.h (get_regcache_arch): Remove. * remote-sim.c (gdbsim_fetch_register): Likewise. (gdbsim_store_register): Likewise. * remote.c (fetch_register_using_p): Likewise. (send_g_packet): Likewise. (remote_prepare_to_store): Likewise. (store_registers_using_G): Likewise. * reverse.c (save_bookmark_command): Likewise. (goto_bookmark_command): Likewise. * rs6000-aix-tdep.c (branch_dest): Likewise. * rs6000-nat.c (rs6000_ptrace64): Likewise. (fetch_register): Likewise. * rs6000-tdep.c (ppc_supply_reg): Likewise. (ppc_collect_reg): Likewise. (ppc_collect_gregset): Likewise. (ppc_collect_fpregset): Likewise. (ppc_collect_vsxregset): Likewise. (ppc_collect_vrregset): Likewise. (ppc_displaced_step_hw_singlestep): Likewise. (rs6000_pseudo_register_read): Likewise. (rs6000_pseudo_register_write): Likewise. * s390-linux-nat.c (supply_gregset): Likewise. (fill_gregset): Likewise. (s390_linux_fetch_inferior_registers): Likewise. * s390-linux-tdep.c (s390_write_pc): Likewise. (s390_software_single_step): Likewise. (s390_all_but_pc_registers_record): Likewise. (s390_linux_syscall_record): Likewise. * sentinel-frame.c (sentinel_frame_prev_arch): Likewise. * sh-nbsd-nat.c (shnbsd_fetch_inferior_registers): Likewise. (shnbsd_store_inferior_registers): Likewise. * sh-tdep.c (sh_extract_return_value_nofpu): Likewise. (sh_extract_return_value_fpu): Likewise. (sh_store_return_value_nofpu): Likewise. (sh_corefile_supply_regset): Likewise. (sh_corefile_collect_regset): Likewise. * sh64-tdep.c (sh64_extract_return_value): Likewise. (sh64_store_return_value): Likewise. * sparc-linux-tdep.c (sparc32_linux_collect_core_fpregset): Likewise. * sparc-nat.c (sparc_fetch_inferior_registers): Likewise. (sparc_store_inferior_registers): Likewise. * sparc-ravenscar-thread.c (register_in_thread_descriptor_p): Likewise. (sparc_ravenscar_prepare_to_store): Likewise. * sparc-tdep.c (sparc32_store_arguments): Likewise. (sparc_analyze_control_transfer): Likewise. (sparc_step_trap): Likewise. (sparc_software_single_step): Likewise. (sparc32_gdbarch_init): Likewise. (sparc_supply_rwindow): Likewise. (sparc_collect_rwindow): Likewise. * sparc64-linux-tdep.c (sparc64_linux_collect_core_fpregset): Likewise. * sparc64-nbsd-nat.c (sparc64nbsd_supply_gregset): Likewise. (sparc64nbsd_collect_gregset): Likewise. (sparc64nbsd_supply_fpregset): Likewise. (sparc64nbsd_collect_fpregset): Likewise. * sparc64-tdep.c (sparc64_store_arguments): Likewise. (sparc64_supply_gregset): Likewise. (sparc64_collect_gregset): Likewise. (sparc64_supply_fpregset): Likewise. (sparc64_collect_fpregset): Likewise. * spu-linux-nat.c (spu_fetch_inferior_registers): Likewise. * spu-tdep.c (spu_unwind_sp): Likewise. (spu2ppu_prev_register): Likewise. (spu_memory_remove_breakpoint): Likewise. * stack.c (return_command): Likewise. * tic6x-tdep.c (tic6x_extract_signed_field): Likewise. * tracefile-tfile.c (tfile_fetch_registers): Likewise. * tracefile.c (trace_save_ctf): Likewise. * windows-nat.c (do_windows_fetch_inferior_registers): Likewise. (do_windows_store_inferior_registers): Likewise. (windows_resume): Likewise. * xtensa-linux-nat.c (fill_gregset): Likewise. (supply_gregset_reg): Likewise. * xtensa-tdep.c (xtensa_register_write_masked): Likewise. (xtensa_register_read_masked): Likewise. (xtensa_supply_gregset): Likewise. (xtensa_extract_return_value): Likewise. (xtensa_store_return_value): Likewise.
2017-10-21Get rid of VEC (mem_region)Simon Marchi1-2/+2
This patch removes VEC (mem_region). Doing so requires touching a lot of little things here and there. The fields in mem_attrib are now initialized during construction. The values match those that were in default_mem_attrib (now removed). unknown_mem_attrib is also removed, and replaced with a static method (mem_attrib::unknown) that returns the equivalent. mem_region is initialized in a way similar to mem_region_init (now removed) did. I found the organization of mem_region_list and target_mem_region_list a bit confusing. Sometimes mem_region_list points to the same vector as target_mem_region_list (and therefore does not own it), and sometimes (when the user manually edits the mem regions) points to another vector, and in this case owns it. To avoid this ambiguity, I think it is simpler to have two vectors, one for target-defined regions and one for user-defined regions, and have mem_region_list point to one or the other. There are now no vector objects dynamically allocated, both are static. The make-target-delegates script does not generate valid code when a target method returns a type with a parameter list. For this reason, I created a typedef (mem_region_vector) that's only used in the target_ops structure. If you speak perl, you are welcome to improve the script! Regtested on the buildbot. gdb/ChangeLog: * memattr.h: Don't include vec.h. (struct mem_attrib): Initialize fields. <unknown>: New static method. (struct mem_region): Add constructors, operator<, initialize fields. * memattr.c: Include algorithm. (default_mem_attrib, unknown_mem_attrib): Remove. (user_mem_region_list): New global. (target_mem_region_list, mem_region_list): Change type to std::vector<mem_region>. (mem_use_target): Now a function. (target_mem_regions_valid): Change type to bool. (mem_region_lessthan, mem_region_cmp, mem_region_init): Remove. (require_user_regions): Adjust. (require_target_regions): Adjust. (create_mem_region): Adjust. (lookup_mem_region): Adjust. (invalidate_target_mem_regions): Adjust. (mem_clear): Rename to... (user_mem_clear): ... this, and adjust. (mem_command): Adjust. (info_mem_command): Adjust. (mem_enable, enable_mem_command, mem_disable, disable_mem_command): Adjust. (mem_delete): Adjust. (delete_mem_command): Adjust. * memory-map.h (parse_memory_map): Return an std::vector. * memory-map.c (parse_memory_map): Likewise. (struct memory_map_parsing_data): Add constructor. <memory_map>: Point to std::vector. (memory_map_start_memory): Adjust. (memory_map_end_memory): Adjust. (memory_map_end_property): Adjust. (clear_result): Remove. * remote.c (remote_memory_map): Return an std::vector. * target-debug.h (target_debug_print_VEC_mem_region_s__p): Remove. (target_debug_print_mem_region_vector): New. * target-delegates.c: Regenerate. * target.h (mem_region_vector): New typedef. (to_memory_map): Return mem_region_vector. (target_memory_map): Return an std::vector. * target.c (target_memory_map): Return an std::vector. (flash_erase_command): Adjust.
2017-10-16Return unique_xmalloc_ptr from target_read_strallocTom Tromey1-46/+18
This changes target_read_stralloc to return a unique_xmalloc_ptr, and then fixes all the callers. unique_xmalloc_ptr is used, rather than std::string, because target_read_stralloc gives a special meaning to a NULL return. ChangeLog 2017-10-16 Tom Tromey <tom@tromey.com> * xml-syscall.c (xml_init_syscalls_info): Update. * xml-support.c (xinclude_start_include): Update. (xml_fetch_content_from_file): Return unique_xmalloc_ptr. * xml-support.h (xml_fetch_another): Return unique_xmalloc_ptr. (xml_fetch_content_from_file): Likewise. * osdata.c (get_osdata): Update. * target.h (target_read_stralloc, target_get_osdata): Return unique_xmalloc_ptr. * solib-aix.c (solib_aix_get_library_list): Update. * solib-target.c (solib_target_current_sos): Update. * solib-svr4.c (svr4_current_sos_via_xfer_libraries): Update. * xml-tdesc.c (fetch_available_features_from_target): Update. (target_fetch_description_xml): Update. (file_read_description_xml): Update. * remote.c (remote_get_threads_with_qxfer, remote_memory_map) (remote_traceframe_info, btrace_read_config, remote_read_btrace) (remote_pid_to_exec_file): Update. * target.c (target_read_stralloc): Return unique_xmalloc_ptr. (target_get_osdata): Likewise.
2017-10-16Simple cleanup removals in remote.cTom Tromey1-43/+28
This removes a few cleanups in remote.c using the usual techniques: std::vector, unique_xmalloc_ptr, and gdb::def_vector. ChangeLog 2017-10-16 Tom Tromey <tom@tromey.com> * remote.c (remote_register_number_and_offset): Use std::vector. (remote_set_syscall_catchpoint): Use gdb::unique_xmalloc_ptr. (putpkt_binary): Use gdb::def_vector. (compare_sections_command): Use gdb::byte_vector.
2017-10-16Get rid of VEC(mem_range_s)Simon Marchi1-14/+5
This patch replaces the last usages of VEC(mem_range_s) with std::vector<mem_range>. This allows getting rid of a few cleanups and of the DEF_VEC_O(mem_range_s). I added a test for normalize_mem_ranges to make sure I didn't break anything there. Regtested on the buildbot. gdb/ChangeLog: * memrange.h (struct mem_range): Define operator< and operator==. (mem_range_s): Remove. (DEF_VEC_O (mem_range_s)): Remove. (normalize_mem_ranges): Change parameter type to std::vector. * memrange.c (compare_mem_ranges): Remove. (normalize_mem_ranges): Change parameter type to std::vector, adjust to vector change. * exec.c (section_table_available_memory): Return vector, remove parameter. (section_table_read_available_memory): Adjust to std::vector change. * remote.c (remote_read_bytes): Adjust to std::vector change. * tracepoint.h (traceframe_available_memory): Change parameter type to std::vector. * tracepoint.c (traceframe_available_memory): Change parameter type to std::vector, adjust. * gdb/mi/mi-main.c (mi_cmd_trace_frame_collected): Adjust to std::vector change. * gdb/Makefile.in (SUBDIR_UNITTESTS_SRCS): Add unittests/memrange-selftests.c. (SUBDIR_UNITTESTS_OBS): Add memrange-selftests.o. * gdb/unittests/memrange-selftests.c: New file.
2017-10-14Make to_traceframe_info return a unique_ptrSimon Marchi1-3/+2
Since this target method returns an allocated object, return a unique_ptr. It allows getting rid a some cleanups here and there. I had to shuffle the includes around. First, target.h now needs to include tracepoint.h, to get the definition of traceframe_info_up. However, the definition of enum trace_find_type was later in target, so I had to move it to tracepoint.h, so that the declaration of tfind_1 could know about it. I then had to remove the include of target.h from tracepoint.h, which caused a circular dependency (it was probably included to get enum trace_find_type in the first place anyway). Regression tested on the buildbot. gdb/ChangeLog: * target.h: Include tracepoint.h. (enum trace_find_type): Move to tracepoint.h. (struct target_ops) <to_traceframe_info>: Return a unique ptr. * tracepoint.h: Don't include target.h (enum trace_find_type): Move from target.h. (parse_traceframe_info): Return a unique ptr. * tracepoint.c (current_traceframe_info): Change type to unique ptr. (free_traceframe_info): Remove. (clear_traceframe_info): Don't manually free current_traceframe_info. (free_result): Remove. (parse_traceframe_info): Return a unique ptr. (get_traceframe_info): Adjust to unique ptr. * ctf.c (ctf_traceframe_info): Return a unique ptr. * remote.c (remote_traceframe_info): Return a unique ptr. * tracefile-tfile.c (tfile_traceframe_info): Return a unique ptr. * target-debug.h (target_debug_print_traceframe_info_up): New macro. * target-delegates.c: Regenerate.
2017-10-11Constify add_prefix_cmdTom Tromey1-3/+3
This changes add_prefix_cmd to accept a const-taking function as an argument; then fixes up all the callers. In a couple of spots I had to add a non-const overload of a function, because the function is passed to two different command-adding "constructors". These overloads are temporary; once constification is complete they can be removed. This patch also fixes a typo I happened to notice while constifying. Note that this touches a couple of files (gnu-nat.c and go32-nat.c) that I can't build. So, while I made a best-effort there, I am not certain they will still compile. Tested by rebuilding. gdb/ChangeLog 2017-10-11 Tom Tromey <tom@tromey.com> * gdbthread.h (thread_command): Constify. * inferior.h (detach_command): Constify. * top.h (set_history, show_history): Constify. * arm-tdep.c (set_arm_command, show_arm_command): Constify. * serial.c (serial_set_cmd, serial_show_cmd): Constify. * bsd-kvm.c (bsd_kvm_cmd): Constify. * printcmd.c (set_command): Constify. (non_const_set_command): New function. * dcache.c (set_dcache_command, show_dcache_command): Constify. * breakpoint.c (enable_command, disable_command, delete_command) (catch_command, tcatch_command, set_breakpoint_cmd) (show_breakpoint_cmd): Constify. * macrocmd.c (macro_command): Constify. * infcmd.c (unset_command, kill_command, detach_command) (info_proc_cmd): Constify. * i386-tdep.c (set_mpx_cmd, show_mpx_cmd): Constify. * auto-load.c (show_auto_load_cmd, set_auto_load_cmd) (info_auto_load_cmd): Constify. * target-descriptions.c (set_tdesc_cmd, show_tdesc_cmd) (unset_tdesc_cmd): Constify. * ada-lang.c (set_ada_command, show_ada_command) (maint_set_ada_cmd, maint_show_ada_cmd): Constify. * guile/guile.c (set_guile_command, show_guile_command) (info_guile_command): Constify. * tui/tui-win.c (tui_command, set_tui_cmd, show_tui_cmd): Constify. * skip.c (skip_command): Constify. * compile/compile.c (_initialize_compile): Constify. * dwarf2read.c (set_dwarf_cmd, show_dwarf_cmd): Constify. * btrace.c (maint_btrace_cmd, maint_btrace_set_cmd) (maint_btrace_show_cmd, maint_btrace_pt_set_cmd) (maint_btrace_pt_show_cmd): Constify. * remote.c (set_remote_cmd, show_remote_cmd, remote_command): Constify. * python/python.c (user_show_python, user_set_python): Constify. * mips-tdep.c (set_mips_command, show_mips_command) (set_mipsfpu_command): Constify. * record-btrace.c (cmd_record_btrace_start) (cmd_set_record_btrace, cmd_show_record_btrace) (cmd_set_record_btrace_bts, cmd_show_record_btrace_bts) (cmd_set_record_btrace_pt, cmd_show_record_btrace_pt): Constify. * rs6000-tdep.c (set_powerpc_command, show_powerpc_command): Constify. * symfile.c (overlay_command): Constify. * spu-tdep.c (set_spu_command, show_spu_command): Constify. * cli/cli-logging.c (set_logging_command, show_logging_command): Constify. * cli/cli-dump.c (dump_command, append_command) (srec_dump_command, ihex_dump_command, verilog_dump_command) (tekhex_dump_command, binary_dump_command) (binary_append_command): Constify. * cli/cli-decode.c (struct cmd_list_element): Change type of "fun". * cli/cli-cmds.c (info_command, show_command, set_debug) (show_debug): Constify. (show_command): Add non-const overload. * top.c (set_history, show_history): Constify. * sh-tdep.c (set_sh_command, show_sh_command): Constify. * command.h (add_prefix_cmd): Accept a cmd_const_cfunc_ftype. * target.c (target_command): Constify. * sparc64-tdep.c (info_adi_command): Constify. * record-full.c (cmd_record_full_start): Constify. (set_record_full_command): Constify. Fix typo. (show_record_full_command): Constify. * thread.c (thread_command, thread_apply_command): Constify. * memattr.c (dummy_cmd): Constify. * value.c (function_command): Constify. * frame.c (set_backtrace_cmd, show_backtrace_cmd): Constify. * probe.c (info_probes_command): Constify. * ser-tcp.c (set_tcp_cmd, show_tcp_cmd): Constify. * gnu-nat.c (set_task_cmd, show_task_cmd, set_thread_cmd) (show_thread_cmd, set_thread_default_cmd) (show_thread_default_cmd): Constify. (check_empty): Constify. * tracepoint.c (tfind_command): Constify. * cp-support.c (maint_cplus_command): Constify. * windows-tdep.c (info_w32_command): Constify. * record.c (cmd_record_start, set_record_command) (show_record_command, info_record_command, cmd_record_goto): Constify. * ravenscar-thread.c (set_ravenscar_command) (show_ravenscar_command): Constify. * utils.c (set_internal_problem_cmd, show_internal_problem_cmd): Constify. (add_internal_problem_command): Remove casts. * arc-tdep.c (maintenance_print_arc_command): Constify. * valprint.c (set_print, show_print, set_print_raw) (show_print_raw): Constify. * maint.c (maintenance_command, maintenance_info_command) (maintenance_print_command, maintenance_set_cmd) (maintenance_show_cmd, set_per_command_cmd) (show_per_command_cmd, maintenance_check_command): Constify. * language.c (set_check, show_check): Constify. * typeprint.c (show_print_type, set_print_type): Constify. * go32-nat.c (go32_info_dos_command): Constify.
2017-10-04Fix "Remote 'g' packet reply is too long" problems with multiple inferiorsPedro Alves1-27/+73
When debugging two inferiors (or more) against gdbserver, and the inferiors have different architectures, such as e.g., on x86_64 GNU/Linux and one inferior is 64-bit while the other is 32-bit, then GDB can get confused with the different architectures in a couple spots. In both cases I ran into, GDB incorrectly ended up using the architecture of whatever happens to be the selected inferior instead of the architecture of some other given inferior: #1 - When parsing the expedited registers in stop replies. #2 - In the default implementation of the target_thread_architecture target method. These resulted in instances of the infamous "Remote 'g' packet reply is too long" error. For example, with the test added in this commit, we get: ~~~ Continuing. Remote 'g' packet reply is too long (expected 440 bytes, got 816 bytes): ad064000000000000[snip] (gdb) FAIL: gdb.multi/multi-arch.exp: inf1 event with inf2 selected: continue to hello_loop c Continuing. Truncated register 50 in remote 'g' packet (gdb) PASS: gdb.multi/multi-arch.exp: inf2 event with inf1 selected: c ~~~ This commit fixes that. gdb/ChangeLog: 2017-10-04 Pedro Alves <palves@redhat.com> * remote.c (get_remote_arch_state): New 'gdbarch' parameter. Use it instead of target_gdbarch. (get_remote_state, get_remote_packet_size): Adjust get_remote_arch_state calls, passing down target_gdbarch explicitly. (packet_reg_from_regnum, packet_reg_from_pnum): New parameter 'gdbarch' and use it instead of target_gdbarch. (get_memory_packet_size): Adjust get_remote_arch_state calls, passing down target_gdbarch explicitly. (struct stop_reply) <arch>: New field. (remote_parse_stop_reply): Use the stopped thread's architecture, not the current inferior's. Save the architecture in the stop_reply. (process_stop_reply): Use the stop reply's architecture. (process_g_packet, remote_fetch_registers) (remote_prepare_to_store, store_registers_using_G) (remote_store_registers): Adjust get_remote_arch_state calls, using the regcache's architecture. (remote_get_trace_status): Adjust get_remote_arch_state calls, passing down target_gdbarch explicitly. * spu-multiarch.c (spu_thread_architecture): Defer to the target beneath instead of calling target_gdbarch. * target.c (default_thread_architecture): Use the specified inferior's architecture, instead of the current inferior's architecture (via target_gdbarch). gdb/testsuite/ChangeLog: 2017-10-04 Pedro Alves <palves@redhat.com> * gdb.multi/hangout.c: Include <unistd.h>. (hangout_loop): New function. (main): Call alarm. Call hangout_loop in a loop. * gdb.multi/hello.c: Include <unistd.h>. (hello_loop): New function. (main): Call alarm. Call hangout_loop in a loop. * gdb.multi/multi-arch.exp: Test running to a breakpoint one inferior with the other selected.
2017-10-04Extend "set cwd" to work on gdbserverSergio Durigan Junior1-0/+47
This is the "natural" extension necessary for the "set cwd" command (and the whole "set the inferior's cwd" logic) to work on gdbserver. The idea here is to have a new remote packet, QSetWorkingDir (name adopted from LLDB's extension to the RSP, as can be seen at <https://raw.githubusercontent.com/llvm-mirror/lldb/master/docs/lldb-gdb-remote.txt>), which sends an hex-encoded string representing the working directory that the remote inferior will use. There is a slight difference from the packet proposed by LLDB: GDB's version will accept empty arguments, meaning that the user wants to clear the previously set working directory for the inferior (i.e., "set cwd" without arguments on GDB). For UNIX-like targets this feature is already implemented on nat/fork-inferior.c, and all gdbserver has to do is to basically implement "set_inferior_cwd" and call it whenever such packet arrives. For other targets, like Windows, it is possible to use the existing "get_inferior_cwd" function and do the necessary steps to make sure that the inferior will use the specified working directory. Aside from that, the patch consists basically of updates to the testcase (making it available on remote targets) and the documentation. No regressions found. gdb/ChangeLog: 2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS (Changes since GDB 8.0): Add entry about new 'set-cwd-on-gdbserver' feature. (New remote packets): Add entry for QSetWorkingDir. * common/common-inferior.h (set_inferior_cwd): New prototype. * infcmd.c (set_inferior_cwd): Remove "static". (show_cwd_command): Expand text to include remote debugging. * remote.c: Add PACKET_QSetWorkingDir. (remote_protocol_features) <QSetWorkingDir>: New entry for PACKET_QSetWorkingDir. (extended_remote_set_inferior_cwd): New function. (extended_remote_create_inferior): Call "extended_remote_set_inferior_cwd". (_initialize_remote): Call "add_packet_config_cmd" for QSetWorkingDir. gdb/gdbserver/ChangeLog: 2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com> * inferiors.c (set_inferior_cwd): New function. * server.c (handle_general_set): Handle QSetWorkingDir packet. (handle_query): Inform that QSetWorkingDir is supported. * win32-low.c (create_process): Pass the inferior's cwd to CreateProcess. gdb/testsuite/ChangeLog: 2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/set-cwd.exp: Make it available on native-extended-gdbserver. gdb/doc/ChangeLog: 2017-10-04 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (Starting your Program) <The working directory.>: Mention remote debugging. (Working Directory) <Your Program's Working Directory>: Likewise. (Connecting) <Remote Packet>: Add "set-working-dir" and "QSetWorkingDir" to the table. (Remote Protocol) <QSetWorkingDir>: New item, explaining the packet.
2017-09-29Constify unpack_varlen_hex & fix falloutPedro Alves1-18/+19
I ran into non-const unpack_varlen_hex while working on something else, and decided to just fix it first. Ends up constifying a good deal of remote packet parsing. gdb/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * common/rsp-low.c (unpack_varlen_hex): Constify. * common/rsp-low.h (unpack_varlen_hex): Constify. * linux-nat.c (linux_child_static_tracepoint_markers_by_strid): Constify. * remote.c (remote_set_permissions, read_ptid) (remote_current_thread, remote_get_threads_with_qthreadinfo) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (stop_reply_extract_thread, remote_parse_stop_reply): Constify. * tracepoint.c (parse_trace_status, parse_tracepoint_status) (parse_tracepoint_definition, parse_tsv_definition) (parse_static_tracepoint_marker_definition): Constify. * tracepoint.h (parse_static_tracepoint_marker_definition) (parse_trace_status, parse_tracepoint_status) (parse_tracepoint_definition, parse_tsv_definition): Constify. gdb/gdbserver/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * ax.c (gdb_parse_agent_expr): Constify. * ax.h (gdb_parse_agent_expr): Constify. * mem-break.c (add_breakpoint_condition, add_breakpoint_commands): Constify. * mem-break.h (add_breakpoint_condition, add_breakpoint_commands): Constify. * remote-utils.c (hex_or_minus_one, read_ptid): Constify. * remote-utils.h (read_ptid): Constify. * server.c (handle_qxfer_exec_file, handle_query, handle_v_cont) (process_point_options, process_serial_event): Constify. * tracepoint.c (add_tracepoint_action, cmd_qtdp, cmd_qtdpsrc) (cmd_qtdv, cmd_qtenable_disable, cmd_qtro, cmd_qtframe, cmd_qtp) (cmd_qtbuffer): Constify.
2017-09-29gdb/remote.c: Eliminate target_buf/target_buf_size hackPedro Alves1-65/+69
This finally eliminates an old hack left in place when tracepoint RSP support was migrated from tracepoint.c to remote.c, back in 35b1e5cca081 ("Make tracepoint operations go through target vector.") over 7 years ago. Tested on x86_64 GNU/Linux. gdb/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * remote.c (target_buf, target_buf_size): Delete. (remote_get_noisy_reply): Remove buf_p and sizeof_buf parameters. Use the connection's packet buffer instead. All callers adjusted. (_initialize_remote): Remove references to target_buf and target_buf_size.
2017-09-27Constify some commands in remote.cTom Tromey1-14/+10
gdb/ChangeLog 2017-09-27 Tom Tromey <tom@tromey.com> * remote.c (set_memory_packet_size) (set_memory_write_packet_size, show_memory_write_packet_size) (set_memory_read_packet_size, show_memory_read_packet_size) (compare_sections_command, packet_command, remote_put_command) (remote_get_command, remote_delete_command): Constify.
2017-09-21Add thread_handle_to_thread_info support for remote targetsKevin Buettner1-0/+59
This patch adds support to remote targets for converting a thread handle to a thread_info struct pointer. A thread handle is fetched via a "handle" attribute which has been added to the qXfer:threads:read query packet. An implementation is provided in gdbserver for targets using the Linux kernel. gdb/gdbserver/ChangeLog: * linux-low.h (struct lwp_info): Add new field, thread_handle. (thread_db_thread_handle): Declare. * linux-low.c (linux_target_ops): Initialize thread_handle. * server.c (handle_qxfer_threads_worker): Add support for "handle" attribute. * target.h (struct target_ops): Add new function pointer, thread_handle. (target_thread_handle): Define. * thread-db.c (find_one_thread, attach_thread): Set thread_handle field in lwp. (thread_db_thread_handle): New function. gdb/ChangeLog: * remote.c (vector): Include. (struct private_thread_info): Add field, thread_handle. (free_private_thread_info): Deallocate storage associated with thread handle. (get_private_info_thread): Initialize `thread_handle' field. (struct thread_item): Add field, thread_handle. (clear_threads_listing_context): Deallocate storage associated with thread handle. (start_thread): Add support for "handle" attribute. (thread_attributes): Add "handle". (remote_get_threads_with_qthreadinfo): Initialize thread_handle field. (remote_update_thread_list): Update thread_handle. (remote_thread_handle_to_thread_info): New function. (init_remote_ops): Initialize to_thread_handle_to_thread_info.
2017-09-20Remove make_cleanup_restore_target_terminalTom Tromey1-6/+6
This removes make_cleanup_restore_target_terminal and generally C++-ifies target terminal handling. It changes all target_terminal_* functions to be static members of a new target_terminal class and changes the cleanup to be a scoped_* class. make_cleanup_override_quit_handler is also removed in favor of simply using scoped_restore. Note that there are some files in this patch that I could not compile. Considering that some of the rewrites were automated, and that none of these files involed cleanups, I feel that this is relatively safe. Regression tested by the buildbot. gdb/ChangeLog 2017-09-20 Tom Tromey <tom@tromey.com> * windows-nat.c (get_windows_debug_event, windows_wait) (do_initial_windows_stuff, windows_attach): Update. * utils.c (vwarning, internal_vproblem): Update. (ui_unregister_input_event_handler_cleanup) (prepare_to_handle_input): Remove. (class scoped_input_handler): New. (defaulted_query, prompt_for_continue): Update. * tui/tui-hooks.c (tui_refresh_frame_and_register_information): Update. * top.c (undo_terminal_modifications_before_exit): Update. * target/target.h (target_terminal_init, target_terminal_inferior) (target_terminal_ours): Don't declare. (class target_terminal): New. * target.h (target_terminal_is_inferior, target_terminal_is_ours) (target_terminal_ours_for_output) (make_cleanup_restore_target_terminal): Don't declare. (target_terminal_info): Remove. * target.c (enum terminal_state, terminal_state): Remove. (target_terminal::terminal_state): Define. (target_terminal::init): Rename from target_terminal_init. (target_terminal::inferior): Rename from target_terminal_inferior. (target_terminal::ours): Rename from target_terminal_ours. (target_terminal::ours_for_output): Rename from target_terminal_ours_for_output. (target_terminal::info): New method. (cleanup_restore_target_terminal) (make_cleanup_restore_target_terminal): Remove. * solib.c (handle_solib_event): Update. * remote.c (remote_serial_quit_handler): Update. (remote_terminal_inferior, remote_wait_as): Update. * record-full.c (record_full_wait_1): Update. * nto-procfs.c (procfs_create_inferior): Update. * nat/fork-inferior.c (startup_inferior): Update. * mi/mi-interp.c (mi_new_thread, mi_thread_exit) (mi_record_changed, mi_inferior_added, mi_inferior_appeared) (mi_inferior_exit, mi_inferior_removed, mi_traceframe_changed) (mi_tsv_created, mi_tsv_deleted, mi_tsv_modified) (mi_breakpoint_created, mi_breakpoint_deleted) (mi_breakpoint_modified, mi_on_resume, mi_solib_loaded) (mi_solib_unloaded, mi_command_param_changed, mi_memory_changed) (mi_user_selected_context_changed, report_initial_inferior): Update. * linux-nat.c (linux_nat_attach, linux_nat_terminal_ours) (linux_nat_terminal_inferior): Update. * infrun.c (follow_fork_inferior) (handle_vfork_child_exec_or_exit, do_target_resume) (check_curr_ui_sync_execution_done, handle_inferior_event_1) (handle_signal_stop, maybe_remove_breakpoints, normal_stop): Update. * inflow.c (child_terminal_init, info_terminal_command): Update. * infcmd.c (post_create_inferior, continue_1, prepare_one_step) (attach_command): Update. * infcall.c (call_thread_fsm_should_stop): Update. * gnu-nat.c (gnu_attach): Update. * extension.c (struct active_ext_lang_state) (restore_active_ext_lang): Update. * exceptions.c (print_flush): Update. * event-top.c (async_enable_stdin, default_quit_handler): Update. (struct quit_handler_cleanup_data, restore_quit_handler) (restore_quit_handler_dtor, make_cleanup_override_quit_handler): Remove. * cp-support.c (gdb_demangle): Update. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, handle_jit_event) (disable_breakpoints_in_unloaded_shlib): Update. * annotate.c (annotate_breakpoints_invalid) (annotate_frames_invalid): Update. gdb/gdbserver/ChangeLog 2017-09-20 Tom Tromey <tom@tromey.com> * target.c (target_terminal::terminal_state): Define. (target_terminal::init): Rename from target_terminal_init. (target_terminal::inferior): Rename from target_terminal_inferior. (target_terminal::ours): Rename from target_terminal_ours. (target_terminal::ours_for_output, target_terminal::info): New.
2017-09-09Remove unnecessary function prototypes.John Baldwin1-2/+0
These prototypes were required when compiling GDB as C but are not required for C++. gdb/ChangeLog: * aarch64-linux-nat.c: Remove _initialize_aarch64_linux_nat prototype. * aarch64-linux-tdep.c: Remove _initialize_aarch64_linux_tdep prototype. * aarch64-newlib-tdep.c: Remove _initialize_aarch64_newlib_tdep prototype. * aarch64-tdep.c: Remove _initialize_aarch64_tdep prototype. * ada-exp.y: Remove _initialize_ada_exp prototype. * ada-lang.c: Remove _initialize_ada_language prototype. * ada-tasks.c: Remove _initialize_tasks prototype. * addrmap.c: Remove _initialize_addrmap prototype. * agent.c: Remove _initialize_agent prototype. * aix-thread.c: Remove _initialize_aix_thread prototype. * alpha-bsd-nat.c: Remove _initialize_alphabsd_nat prototype. * alpha-linux-nat.c: Remove _initialize_alpha_linux_nat prototype. * alpha-linux-tdep.c: Remove _initialize_alpha_linux_tdep prototype. * alpha-nbsd-tdep.c: Remove _initialize_alphanbsd_tdep prototype. * alpha-obsd-tdep.c: Remove _initialize_alphaobsd_tdep prototype. * alpha-tdep.c: Remove _initialize_alpha_tdep prototype. * amd64-darwin-tdep.c: Remove _initialize_amd64_darwin_tdep prototype. * amd64-dicos-tdep.c: Remove _initialize_amd64_dicos_tdep prototype. * amd64-fbsd-nat.c: Remove _initialize_amd64fbsd_nat prototype. * amd64-fbsd-tdep.c: Remove _initialize_amd64fbsd_tdep prototype. * amd64-linux-nat.c: Remove _initialize_amd64_linux_nat prototype. * amd64-linux-tdep.c: Remove _initialize_amd64_linux_tdep prototype. * amd64-nbsd-nat.c: Remove _initialize_amd64nbsd_nat prototype. * amd64-nbsd-tdep.c: Remove _initialize_amd64nbsd_tdep prototype. * amd64-obsd-nat.c: Remove _initialize_amd64obsd_nat prototype. * amd64-obsd-tdep.c: Remove _initialize_amd64obsd_tdep prototype. * amd64-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype. * amd64-tdep.c: Remove _initialize_amd64_tdep prototype. * amd64-windows-nat.c: Remove _initialize_amd64_windows_nat prototype. * amd64-windows-tdep.c: Remove _initialize_amd64_windows_tdep prototype. * annotate.c: Remove _initialize_annotate prototype. * arc-newlib-tdep.c: Remove _initialize_arc_newlib_tdep prototype. * arc-tdep.c: Remove _initialize_arc_tdep prototype. * arch-utils.c: Remove _initialize_gdbarch_utils prototype. * arm-linux-nat.c: Remove _initialize_arm_linux_nat prototype. * arm-linux-tdep.c: Remove _initialize_arm_linux_tdep prototype. * arm-nbsd-tdep.c: Remove _initialize_arm_netbsd_tdep prototype. * arm-obsd-tdep.c: Remove _initialize_armobsd_tdep prototype. * arm-symbian-tdep.c: Remove _initialize_arm_symbian_tdep prototype. * arm-tdep.c: Remove _initialize_arm_tdep prototype. * arm-wince-tdep.c: Remove _initialize_arm_wince_tdep prototype. * auto-load.c: Remove _initialize_auto_load prototype. * auxv.c: Remove _initialize_auxv prototype. * avr-tdep.c: Remove _initialize_avr_tdep prototype. * ax-gdb.c: Remove _initialize_ax_gdb prototype. * bfin-linux-tdep.c: Remove _initialize_bfin_linux_tdep prototype. * bfin-tdep.c: Remove _initialize_bfin_tdep prototype. * break-catch-sig.c: Remove _initialize_break_catch_sig prototype. * break-catch-syscall.c: Remove _initialize_break_catch_syscall prototype. * break-catch-throw.c: Remove _initialize_break_catch_throw prototype. * breakpoint.c: Remove _initialize_breakpoint prototype. * bsd-uthread.c: Remove _initialize_bsd_uthread prototype. * btrace.c: Remove _initialize_btrace prototype. * charset.c: Remove _initialize_charset prototype. * cli/cli-cmds.c: Remove _initialize_cli_cmds prototype. * cli/cli-dump.c: Remove _initialize_cli_dump prototype. * cli/cli-interp.c: Remove _initialize_cli_interp prototype. * cli/cli-logging.c: Remove _initialize_cli_logging prototype. * cli/cli-script.c: Remove _initialize_cli_script prototype. * coff-pe-read.c: Remove _initialize_coff_pe_read prototype. * coffread.c: Remove _initialize_coffread prototype. * compile/compile.c: Remove _initialize_compile prototype. * complaints.c: Remove _initialize_complaints prototype. * completer.c: Remove _initialize_completer prototype. * copying.awk: Remove _initialize_copying prototype. * copying.c: Regenerate. * core-regset.c: Remove _initialize_core_regset prototype. * corefile.c: Remove _initialize_core prototype. * corelow.c: Remove _initialize_corelow prototype. * cp-abi.c: Remove _initialize_cp_abi prototype. * cp-namespace.c: Remove _initialize_cp_namespace prototype. * cp-support.c: Remove _initialize_cp_support prototype. * cp-valprint.c: Remove _initialize_cp_valprint prototype. * cris-linux-tdep.c: Remove _initialize_cris_linux_tdep prototype. * cris-tdep.c: Remove _initialize_cris_tdep prototype. * ctf.c: Remove _initialize_ctf prototype. * d-lang.c: Remove _initialize_d_language prototype. * darwin-nat-info.c: Remove _initialize_darwin_info_commands prototype. * darwin-nat.c: Remove _initialize_darwin_inferior prototype. * dbxread.c: Remove _initialize_dbxread prototype. * dcache.c: Remove _initialize_dcache prototype. * demangle.c: Remove _initialize_demangler prototype. * disasm-selftests.c: Remove _initialize_disasm_selftests prototype. * disasm.c: Remove _initialize_disasm prototype. * dtrace-probe.c: Remove _initialize_dtrace_probe prototype. * dummy-frame.c: Remove _initialize_dummy_frame prototype. * dwarf2-frame-tailcall.c: Remove _initialize_tailcall_frame prototype. * dwarf2-frame.c: Remove _initialize_dwarf2_frame prototype. * dwarf2expr.c: Remove _initialize_dwarf2expr prototype. * dwarf2loc.c: Remove _initialize_dwarf2loc prototype. * dwarf2read.c: Remove _initialize_dwarf2_read prototype. * elfread.c: Remove _initialize_elfread prototype. * exec.c: Remove _initialize_exec prototype. * extension.c: Remove _initialize_extension prototype. * f-lang.c: Remove _initialize_f_language prototype. * f-valprint.c: Remove _initialize_f_valprint prototype. * fbsd-nat.c: Remove _initialize_fbsd_nat prototype. * fbsd-tdep.c: Remove _initialize_fbsd_tdep prototype. * filesystem.c: Remove _initialize_filesystem prototype. * findcmd.c: Remove _initialize_mem_search prototype. * fork-child.c: Remove _initialize_fork_child prototype. * frame-base.c: Remove _initialize_frame_base prototype. * frame-unwind.c: Remove _initialize_frame_unwind prototype. * frame.c: Remove _initialize_frame prototype. * frv-linux-tdep.c: Remove _initialize_frv_linux_tdep prototype. * frv-tdep.c: Remove _initialize_frv_tdep prototype. * ft32-tdep.c: Remove _initialize_ft32_tdep prototype. * gcore.c: Remove _initialize_gcore prototype. * gdb_bfd.c: Remove _initialize_gdb_bfd prototype. * gdbarch.c: Regenerate. * gdbarch.sh: Remove _initialize_gdbarch prototype. * gdbtypes.c: Remove _initialize_gdbtypes prototype. * gnu-nat.c: Remove _initialize_gnu_nat prototype. * gnu-v2-abi.c: Remove _initialize_gnu_v2_abi prototype. * gnu-v3-abi.c: Remove _initialize_gnu_v3_abi prototype. * go-lang.c: Remove _initialize_go_language prototype. * go32-nat.c: Remove _initialize_go32_nat prototype. * guile/guile.c: Remove _initialize_guile prototype. * h8300-tdep.c: Remove _initialize_h8300_tdep prototype. * hppa-linux-nat.c: Remove _initialize_hppa_linux_nat prototype. * hppa-linux-tdep.c: Remove _initialize_hppa_linux_tdep prototype. * hppa-nbsd-nat.c: Remove _initialize_hppanbsd_nat prototype. * hppa-nbsd-tdep.c: Remove _initialize_hppanbsd_tdep prototype. * hppa-obsd-nat.c: Remove _initialize_hppaobsd_nat prototype. * hppa-obsd-tdep.c: Remove _initialize_hppaobsd_tdep prototype. * hppa-tdep.c: Remove _initialize_hppa_tdep prototype. * i386-bsd-nat.c: Remove _initialize_i386bsd_nat prototype. * i386-cygwin-tdep.c: Remove _initialize_i386_cygwin_tdep prototype. * i386-darwin-tdep.c: Remove _initialize_i386_darwin_tdep prototype. * i386-dicos-tdep.c: Remove _initialize_i386_dicos_tdep prototype. * i386-fbsd-nat.c: Remove _initialize_i386fbsd_nat prototype. * i386-fbsd-tdep.c: Remove _initialize_i386fbsd_tdep prototype. * i386-gnu-nat.c: Remove _initialize_i386gnu_nat prototype. * i386-gnu-tdep.c: Remove _initialize_i386gnu_tdep prototype. * i386-linux-nat.c: Remove _initialize_i386_linux_nat prototype. * i386-linux-tdep.c: Remove _initialize_i386_linux_tdep prototype. * i386-nbsd-nat.c: Remove _initialize_i386nbsd_nat prototype. * i386-nbsd-tdep.c: Remove _initialize_i386nbsd_tdep prototype. * i386-nto-tdep.c: Remove _initialize_i386nto_tdep prototype. * i386-obsd-nat.c: Remove _initialize_i386obsd_nat prototype. * i386-obsd-tdep.c: Remove _initialize_i386obsd_tdep prototype. * i386-sol2-nat.c: Remove _initialize_amd64_sol2_nat prototype. * i386-sol2-tdep.c: Remove _initialize_amd64_sol2_tdep prototype. * i386-tdep.c: Remove _initialize_i386_tdep prototype. * i386-windows-nat.c: Remove _initialize_i386_windows_nat prototype. * ia64-libunwind-tdep.c: Remove _initialize_libunwind_frame prototype. * ia64-linux-nat.c: Remove _initialize_ia64_linux_nat prototype. * ia64-linux-tdep.c: Remove _initialize_ia64_linux_tdep prototype. * ia64-tdep.c: Remove _initialize_ia64_tdep prototype. * ia64-vms-tdep.c: Remove _initialize_ia64_vms_tdep prototype. * infcall.c: Remove _initialize_infcall prototype. * infcmd.c: Remove _initialize_infcmd prototype. * inferior.c: Remove _initialize_inferiors prototype. * inflow.c: Remove _initialize_inflow prototype. * infrun.c: Remove _initialize_infrun prototype. * interps.c: Remove _initialize_interpreter prototype. * iq2000-tdep.c: Remove _initialize_iq2000_tdep prototype. * jit.c: Remove _initialize_jit prototype. * language.c: Remove _initialize_language prototype. * linux-fork.c: Remove _initialize_linux_fork prototype. * linux-nat.c: Remove _initialize_linux_nat prototype. * linux-tdep.c: Remove _initialize_linux_tdep prototype. * linux-thread-db.c: Remove _initialize_thread_db prototype. * lm32-tdep.c: Remove _initialize_lm32_tdep prototype. * m2-lang.c: Remove _initialize_m2_language prototype. * m32c-tdep.c: Remove _initialize_m32c_tdep prototype. * m32r-linux-nat.c: Remove _initialize_m32r_linux_nat prototype. * m32r-linux-tdep.c: Remove _initialize_m32r_linux_tdep prototype. * m32r-tdep.c: Remove _initialize_m32r_tdep prototype. * m68hc11-tdep.c: Remove _initialize_m68hc11_tdep prototype. * m68k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype. * m68k-bsd-tdep.c: Remove _initialize_m68kbsd_tdep prototype. * m68k-linux-nat.c: Remove _initialize_m68k_linux_tdep prototype. * m68k-linux-tdep.c: Remove _initialize_m68k_linux_tdep prototype. * m68k-tdep.c: Remove _initialize_m68k_tdep prototype. * m88k-bsd-nat.c: Remove _initialize_m68kbsd_nat prototype. * m88k-tdep.c: Remove _initialize_m68kbsd_tdep prototype. * machoread.c: Remove _initialize_machoread prototype. * macrocmd.c: Remove _initialize_macrocmd prototype. * macroscope.c: Remove _initialize_macroscope prototype. * maint.c: Remove _initialize_maint_cmds prototype. * mdebugread.c: Remove _initialize_mdebugread prototype. * memattr.c: Remove _initialize_mem prototype. * mep-tdep.c: Remove _initialize_mep_tdep prototype. * mi/mi-cmd-env.c: Remove _initialize_mi_cmd_env prototype. * mi/mi-cmds.c: Remove _initialize_mi_cmds prototype. * mi/mi-interp.c: Remove _initialize_mi_interp prototype. * mi/mi-main.c: Remove _initialize_mi_main prototype. * microblaze-linux-tdep.c: Remove _initialize_microblaze_linux_tdep prototype. * microblaze-tdep.c: Remove _initialize_microblaze_tdep prototype. * mips-fbsd-nat.c: Remove _initialize_mips_fbsd_nat prototype. * mips-fbsd-tdep.c: Remove _initialize_mips_fbsd_tdep prototype. * mips-linux-nat.c: Remove _initialize_mips_linux_nat prototype. * mips-linux-tdep.c: Remove _initialize_mips_linux_tdep prototype. * mips-nbsd-nat.c: Remove _initialize_mipsnbsd_nat prototype. * mips-nbsd-tdep.c: Remove _initialize_mipsnbsd_tdep prototype. * mips-sde-tdep.c: Remove _initialize_mips_sde_tdep prototype. * mips-tdep.c: Remove _initialize_mips_tdep prototype. * mips64-obsd-nat.c: Remove _initialize_mips64obsd_nat prototype. * mips64-obsd-tdep.c: Remove _initialize_mips64obsd_tdep prototype. * mipsread.c: Remove _initialize_mipsread prototype. * mn10300-linux-tdep.c: Remove _initialize_mn10300_linux_tdep prototype. * mn10300-tdep.c: Remove _initialize_mn10300_tdep prototype. * moxie-tdep.c: Remove _initialize_moxie_tdep prototype. * msp430-tdep.c: Remove _initialize_msp430_tdep prototype. * mt-tdep.c: Remove _initialize_mt_tdep prototype. * nds32-tdep.c: Remove _initialize_nds32_tdep prototype. * nios2-linux-tdep.c: Remove _initialize_nios2_linux_tdep prototype. * nios2-tdep.c: Remove _initialize_nios2_tdep prototype. * nto-procfs.c: Remove _initialize_procfs prototype. * nto-tdep.c: Remove _initialize_nto_tdep prototype. * objc-lang.c: Remove _initialize_objc_language prototype. * objfiles.c: Remove _initialize_objfiles prototype. * observer.c: Remove observer_test_first_notification_function, observer_test_second_notification_function, observer_test_third_notification_function, and _initialize_observer prototypes. * opencl-lang.c: Remove _initialize_opencl_language prototypes. * osabi.c: Remove _initialize_gdb_osabi prototype. * osdata.c: Remove _initialize_osdata prototype. * p-valprint.c: Remove _initialize_pascal_valprint prototype. * parse.c: Remove _initialize_parse prototype. * ppc-fbsd-nat.c: Remove _initialize_ppcfbsd_nat prototype. * ppc-fbsd-tdep.c: Remove _initialize_ppcfbsd_tdep prototype. * ppc-linux-nat.c: Remove _initialize_ppc_linux_nat prototype. * ppc-linux-tdep.c: Remove _initialize_ppc_linux_tdep prototype. * ppc-nbsd-nat.c: Remove _initialize_ppcnbsd_nat prototype. * ppc-nbsd-tdep.c: Remove _initialize_ppcnbsd_tdep prototype. * ppc-obsd-nat.c: Remove _initialize_ppcobsd_nat prototype. * ppc-obsd-tdep.c: Remove _initialize_ppcobsd_tdep prototype. * printcmd.c: Remove _initialize_printcmd prototype. * probe.c: Remove _initialize_probe prototype. * proc-api.c: Remove _initialize_proc_api prototype. * proc-events.c: Remove _initialize_proc_events prototype. * proc-service.c: Remove _initialize_proc_service prototype. * procfs.c: Remove _initialize_procfs prototype. * psymtab.c: Remove _initialize_psymtab prototype. * python/python.c: Remove _initialize_python prototype. * ravenscar-thread.c: Remove _initialize_ravenscar prototype. * record-btrace.c: Remove _initialize_record_btrace prototype. * record-full.c: Remove _initialize_record_full prototype. * record.c: Remove _initialize_record prototype. * regcache.c: Remove _initialize_regcache prototype. * reggroups.c: Remove _initialize_reggroup prototype. * remote-notif.c: Remove _initialize_notif prototype. * remote-sim.c: Remove _initialize_remote_sim prototype. * remote.c: Remove _initialize_remote prototype. * reverse.c: Remove _initialize_reverse prototype. * rl78-tdep.c: Remove _initialize_rl78_tdep prototype. * rs6000-aix-tdep.c: Remove _initialize_rs6000_aix_tdep prototype. * rs6000-lynx178-tdep.c: Remove _initialize_rs6000_lynx178_tdep prototype. * rs6000-nat.c: Remove _initialize_rs6000_nat prototype. * rs6000-tdep.c: Remove _initialize_rs6000_tdep prototype. * rust-exp.y: Remove _initialize_rust_exp prototype. * rx-tdep.c: Remove _initialize_rx_tdep prototype. * s390-linux-nat.c: Remove _initialize_s390_nat prototype. * s390-linux-tdep.c: Remove _initialize_s390_tdep prototype. * score-tdep.c: Remove _initialize_score_tdep prototype. * selftest-arch.c: Remove _initialize_selftests_foreach_arch prototype. * ser-go32.c: Remove _initialize_ser_dos prototype. * ser-mingw.c: Remove _initialize_ser_windows prototype. * ser-pipe.c: Remove _initialize_ser_pipe prototype. * ser-tcp.c: Remove _initialize_ser_tcp prototype. * ser-unix.c: Remove _initialize_ser_hardwire prototype. * serial.c: Remove _initialize_serial prototype. * sh-linux-tdep.c: Remove _initialize_sh_linux_tdep prototype. * sh-nbsd-nat.c: Remove _initialize_shnbsd_nat prototype. * sh-nbsd-tdep.c: Remove _initialize_shnbsd_tdep prototype. * sh-tdep.c: Remove _initialize_sh_tdep prototype. * skip.c: Remove _initialize_step_skip prototype. * sol-thread.c: Remove _initialize_sol_thread prototype. * solib-aix.c: Remove _initialize_solib_aix prototype. * solib-darwin.c: Remove _initialize_darwin_solib prototype. * solib-dsbt.c: Remove _initialize_dsbt_solib prototype. * solib-frv.c: Remove _initialize_frv_solib prototype. * solib-spu.c: Remove _initialize_spu_solib prototype. * solib-svr4.c: Remove _initialize_svr4_solib prototype. * solib-target.c: Remove _initialize_solib_target prototype. * solib.c: Remove _initialize_solib prototype. * source.c: Remove _initialize_source prototype. * sparc-linux-nat.c: Remove _initialize_sparc_linux_nat prototype. * sparc-linux-tdep.c: Remove _initialize_sparc_linux_tdep prototype. * sparc-nat.c: Remove _initialize_sparc_nat prototype. * sparc-nbsd-nat.c: Remove _initialize_sparcnbsd_nat prototype. * sparc-nbsd-tdep.c: Remove _initialize_sparcnbsd_tdep prototype. * sparc-obsd-tdep.c: Remove _initialize_sparc32obsd_tdep prototype. * sparc-sol2-nat.c: Remove _initialize_sparc_sol2_nat prototype. * sparc-sol2-tdep.c: Remove _initialize_sparc_sol2_tdep prototype. * sparc-tdep.c: Remove _initialize_sparc_tdep prototype. * sparc64-fbsd-nat.c: Remove _initialize_sparc64fbsd_nat prototype. * sparc64-fbsd-tdep.c: Remove _initialize_sparc64fbsd_tdep prototype. * sparc64-linux-nat.c: Remove _initialize_sparc64_linux_nat prototype. * sparc64-linux-tdep.c: Remove _initialize_sparc64_linux_tdep prototype. * sparc64-nat.c: Remove _initialize_sparc64_nat prototype. * sparc64-nbsd-nat.c: Remove _initialize_sparc64nbsd_nat prototype. * sparc64-nbsd-tdep.c: Remove _initialize_sparc64nbsd_tdep prototype. * sparc64-obsd-nat.c: Remove _initialize_sparc64obsd_nat prototype. * sparc64-obsd-tdep.c: Remove _initialize_sparc64obsd_tdep prototype. * sparc64-sol2-tdep.c: Remove _initialize_sparc64_sol2_tdep prototype. * spu-linux-nat.c: Remove _initialize_spu_nat prototype. * spu-multiarch.c: Remove _initialize_spu_multiarch prototype. * spu-tdep.c: Remove _initialize_spu_tdep prototype. * stabsread.c: Remove _initialize_stabsread prototype. * stack.c: Remove _initialize_stack prototype. * stap-probe.c: Remove _initialize_stap_probe prototype. * std-regs.c: Remove _initialize_frame_reg prototype. * symfile-debug.c: Remove _initialize_symfile_debug prototype. * symfile-mem.c: Remove _initialize_symfile_mem prototype. * symfile.c: Remove _initialize_symfile prototype. * symmisc.c: Remove _initialize_symmisc prototype. * symtab.c: Remove _initialize_symtab prototype. * target-dcache.c: Remove _initialize_target_dcache prototype. * target-descriptions.c: Remove _initialize_target_descriptions prototype. * thread.c: Remove _initialize_thread prototype. * tic6x-linux-tdep.c: Remove _initialize_tic6x_linux_tdep prototype. * tic6x-tdep.c: Remove _initialize_tic6x_tdep prototype. * tilegx-linux-nat.c: Remove _initialize_tile_linux_nat prototype. * tilegx-linux-tdep.c: Remove _initialize_tilegx_linux_tdep prototype. * tilegx-tdep.c: Remove _initialize_tilegx_tdep prototype. * tracefile-tfile.c: Remove _initialize_tracefile_tfile prototype. * tracefile.c: Remove _initialize_tracefile prototype. * tracepoint.c: Remove _initialize_tracepoint prototype. * tui/tui-hooks.c: Remove _initialize_tui_hooks prototype. * tui/tui-interp.c: Remove _initialize_tui_interp prototype. * tui/tui-layout.c: Remove _initialize_tui_layout prototype. * tui/tui-regs.c: Remove _initialize_tui_regs prototype. * tui/tui-stack.c: Remove _initialize_tui_stack prototype. * tui/tui-win.c: Remove _initialize_tui_win prototype. * tui/tui.c: Remove _initialize_tui prototype. * typeprint.c: Remove _initialize_typeprint prototype. * user-regs.c: Remove _initialize_user_regs prototype. * utils.c: Remove _initialize_utils prototype. * v850-tdep.c: Remove _initialize_v850_tdep prototype. * valarith.c: Remove _initialize_valarith prototype. * valops.c: Remove _initialize_valops prototype. * valprint.c: Remove _initialize_valprint prototype. * value.c: Remove _initialize_values prototype. * varobj.c: Remove _initialize_varobj prototype. * vax-bsd-nat.c: Remove _initialize_vaxbsd_nat prototype. * vax-nbsd-tdep.c: Remove _initialize_vaxnbsd_tdep prototype. * vax-tdep.c: Remove _initialize_vax_tdep prototype. * windows-nat.c: Remove _initialize_windows_nat, _initialize_check_for_gdb_ini, and _initialize_loadable prototypes. * windows-tdep.c: Remove _initialize_windows_tdep prototype. * xcoffread.c: Remove _initialize_xcoffread prototype. * xml-support.c: Remove _initialize_xml_support prototype. * xstormy16-tdep.c: Remove _initialize_xstormy16_tdep prototype. * xtensa-linux-nat.c: Remove _initialize_xtensa_linux_nat prototype. * xtensa-linux-tdep.c: Remove _initialize_xtensa_linux_tdep prototype. * xtensa-tdep.c: Remove _initialize_xtensa_tdep prototype.
2017-09-05Improve "'g' reply is is to long" error messageSimon Marchi1-1/+2
... by adding the expected size, and the received size. I found this useful when debugging gdbarch/remote issues, since it gives a hint of what gdb expects and what the remote sent. gdb/ChangeLog: * remote.c (process_g_packet): Update error message.
2017-08-31Implement the ability to set/unset environment variables to GDBserver when ↵Sergio Durigan Junior1-0/+76
starting the inferior This patch implements the ability to set/unset environment variables on the remote target, mimicking what GDB already offers to the user. There are two features present here: user-set and user-unset environment variables. User-set environment variables are only the variables that are explicitly set by the user, using the 'set environment' command. This means that variables that were already present in the environment when starting GDB/GDBserver are not transmitted/considered by this feature. User-unset environment variables are variables that are explicitly unset by the user, using the 'unset environment' command. The idea behind this patch is to store user-set and user-unset environment variables in two separate sets, both part of gdb_environ. Then, when extended_remote_create_inferior is preparing to start the inferior, it will iterate over the two sets and set/unset variables accordingly. Three new packets are introduced: - QEnvironmentHexEncoded, which is used to set environment variables, and contains an hex-encoded string in the format "VAR=VALUE" (VALUE can be empty if the user set a variable with a null value, by doing 'set environment VAR='). - QEnvironmentUnset, which is used to unset environment variables, and contains an hex-encoded string in the format "VAR". - QEnvironmentReset, which is always the first packet to be transmitted, and is used to reset the environment, i.e., discard any changes made by the user on previous runs. The QEnvironmentHexEncoded packet is inspired on LLDB's extensions to the RSP. Details about it can be seen here: <https://raw.githubusercontent.com/llvm-mirror/lldb/master/docs/lldb-gdb-remote.txt> I decided not to implement the QEnvironment packet because it is considered deprecated by LLDB. This packet, on LLDB, serves the same purpose of QEnvironmentHexEncoded, but sends the information using a plain text, non-hex-encoded string. The other two packets are new. This patch also includes updates to the documentation, testsuite, and unit tests, without introducing regressions. gdb/ChangeLog: 2017-08-31 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS (Changes since GDB 8.0): Add entry mentioning new support for setting/unsetting environment variables on the remote target. (New remote packets): Add entries for QEnvironmentHexEncoded, QEnvironmentUnset and QEnvironmentReset. * common/environ.c (gdb_environ::operator=): Extend method to handle m_user_set_env_list and m_user_unset_env_list. (gdb_environ::clear): Likewise. (match_var_in_string): Change type of first parameter from 'char *' to 'const char *'. (gdb_environ::set): Extend method to handle m_user_set_env_list and m_user_unset_env_list. (gdb_environ::unset): Likewise. (gdb_environ::clear_user_set_env): New method. (gdb_environ::user_set_envp): Likewise. (gdb_environ::user_unset_envp): Likewise. * common/environ.h (gdb_environ): Handle m_user_set_env_list and m_user_unset_env_list on move constructor/assignment. (unset): Add new default parameter 'update_unset_list = true'. (clear_user_set_env): New method. (user_set_envp): Likewise. (user_unset_envp): Likewise. (m_user_set_env_list): New std::set. (m_user_unset_env_list): Likewise. * common/rsp-low.c (hex2str): New function. (bin2hex): New overload for bin2hex function. * common/rsp-low.c (hex2str): New prototype. (str2hex): New overload prototype. * remote.c: Include "environ.h". Add QEnvironmentHexEncoded, QEnvironmentUnset and QEnvironmentReset. (remote_protocol_features): Add QEnvironmentHexEncoded, QEnvironmentUnset and QEnvironmentReset packets. (send_environment_packet): New function. (extended_remote_environment_support): Likewise. (extended_remote_create_inferior): Call extended_remote_environment_support. (_initialize_remote): Add QEnvironmentHexEncoded, QEnvironmentUnset and QEnvironmentReset packet configs. * unittests/environ-selftests.c (gdb_selftest_env_var): New variable. (test_vector_initialization): New function. (test_init_from_host_environ): Likewise. (test_reinit_from_host_environ): Likewise. (test_set_A_unset_B_unset_A_cannot_find_A_can_find_B): Likewise. (test_unset_set_empty_vector): Likewise. (test_vector_clear): Likewise. (test_std_move): Likewise. (test_move_constructor): (test_self_move): Likewise. (test_set_unset_reset): Likewise. (run_tests): Rewrite in terms of the functions above. gdb/gdbserver/ChangeLog: 2017-08-31 Sergio Durigan Junior <sergiodj@redhat.com> * server.c (handle_general_set): Handle QEnvironmentHexEncoded, QEnvironmentUnset and QEnvironmentReset packets. (handle_query): Inform remote that QEnvironmentHexEncoded, QEnvironmentUnset and QEnvironmentReset are supported. gdb/doc/ChangeLog: 2017-08-31 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (set environment): Add @anchor. Explain that environment variables set by the user are sent to GDBserver. (unset environment): Likewise, but for unsetting variables. (Connecting) <Remote Packet>: Add "environment-hex-encoded", "QEnvironmentHexEncoded", "environment-unset", "QEnvironmentUnset", "environment-reset" and "QEnvironmentReset" to the table. (Remote Protocol) <QEnvironmentHexEncoded, QEnvironmentUnset, QEnvironmentReset>: New item, explaining the packet. gdb/testsuite/ChangeLog: 2017-08-31 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/share-env-with-gdbserver.c: New file. * gdb.base/share-env-with-gdbserver.exp: Likewise.
2017-08-23Fix PR remote/21852: Remote run without specifying a local binary crashes GDBSergio Durigan Junior1-9/+9
There is an assertion that is triggering when we start GDB and instruct it to debug a remote inferior, but don't provide a local binary, like: ./gdb -nx -q --data-directory=data-directory -ex "tar ext :1234" \ -ex "set remote exec-file /bin/ls" -ex r In this case, when calling exec_file_locate_attach to locate the inferior, GDB is incorrectly resetting the breakpoints without a thread/inferior even running, which causes an assertion to be triggered: binutils-gdb/gdb/thread.c:1609: internal-error: scoped_restore_current_thread::scoped_restore_current_thread(): Assertion `tp != NULL' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) This happens because add_current_inferior_and_thread (on remote.c) is breaking an invariant: making inferior_ptid point to a non-existing thread and then calling common code, which in this case is breakpoint_re_set. The fix is to make sure that inferior_ptid points to null_ptid if there is no thread present. A testcase is provided. Regtested on buildbot. gdb/ChangeLog: 2017-08-23 Pedro Alves <palves@redhat.com> PR remote/21852 * remote.c (add_current_inferior_and_thread): Set inferior_ptid to null_ptid and switch to thread without reading the registers after adding the inferior. gdb/testsuite/ChangeLog: 2017-08-23 Sergio Durigan Junior <sergiodj@redhat.com> PR remote/21852 * gdb.server/normal.c: New file, copied from gdb.base. * gdb.server/run-without-local-binary.exp: New file.
2017-08-03Introduce gdb_argv, a class wrapper for buildargvTom Tromey1-26/+4
This introduces gdb_argv, a class wrapping an "argv" pointer; that is, a pointer to a NULL-terminated array of char*, where both the array and each non-NULL element in the array are xmalloc'd. This patch then changes most users of gdb_buildargv to use gdb_argv instead. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * utils.h (struct gdb_argv_deleter): New. (gdb_argv): New class. * utils.c (gdb_argv::reset): New method. * tracepoint.c (delete_trace_variable_command): Use gdb_argv. * tracefile.c (tsave_command): Use gdb_argv. * top.c (new_ui_command): Use gdb_argv. * symmisc.c (maintenance_print_symbols) (maintenance_print_msymbols, maintenance_expand_symtabs): Use gdb_argv. * symfile.c (symbol_file_command, generic_load) (remove_symbol_file_command): Use gdb_argv. * stack.c (backtrace_command): Use gdb_argv. * source.c (add_path, show_substitute_path_command) (unset_substitute_path_command, set_substitute_path_command): Use gdb_argv. * skip.c (skip_command): Use gdb_argv. Use gdb_buildargv. * ser-mingw.c (pipe_windows_open): Use gdb_argv. * remote.c (extended_remote_run, remote_put_command) (remote_get_command, remote_delete_command): Use gdb_argv. * remote-sim.c (gdbsim_load, gdbsim_create_inferior) (gdbsim_open): Use gdb_argv. * python/py-cmd.c (gdbpy_string_to_argv): Use gdb_argv. * psymtab.c (maintenance_print_psymbols): Use gdb_argv. * procfs.c (procfs_info_proc): Use gdb_argv. * interps.c (interpreter_exec_cmd): Use gdb_argv. * infrun.c (handle_command): Use gdb_argv. * inferior.c (add_inferior_command, clone_inferior_command): Use gdb_argv. * guile/scm-string.c (gdbscm_string_to_argv): Use gdb_argv. * exec.c (exec_file_command): Use gdb_argv. * cli/cli-cmds.c (alias_command): Use gdb_argv. * compile/compile.c (build_argc_argv): Use gdb_argv.
2017-08-03More uses of scoped_restoreTom Tromey1-43/+20
There were a few more places in gdb that could easily use scoped_restore, replacing some cleanups. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * reverse.c (exec_direction_default): Remove. (exec_reverse_once): Use scoped_restore. * remote.c (restore_remote_timeout): Remove. (remote_flash_erase, remote_flash_write, remote_flash_done) (readchar, remote_serial_write): Use scoped_restore. * cli/cli-script.c (struct source_cleanup_lines_args) (source_cleanup_lines): Remove. (script_from_file): Use scoped_restore. * cli/cli-cmds.c (source_verbose_cleanup): Remove. (source_command): Use scoped_restore.
2017-08-03Introduce and use gdb_file_upTom Tromey1-11/+7
This introduces gdb_file_up, a unique pointer holding a FILE*, and then changes some code in gdb to use it. In particular gdb_fopen_cloexec now returns a gdb_file_up. This allow removing some cleanups. ChangeLog 2017-08-03 Tom Tromey <tom@tromey.com> * xml-support.c (xml_fetch_content_from_file): Update. * ui-file.c (stdio_file::open): Update. * tracefile-tfile.c (tfile_start): Update. * remote.c (remote_file_put, remote_file_get): Update. * nat/linux-procfs.c (linux_proc_get_int) (linux_proc_pid_get_state, linux_proc_tid_get_name): Update. * nat/linux-osdata.c (linux_common_core_of_thread): Update. (command_from_pid, commandline_from_pid, linux_xfer_osdata_cpus) (print_sockets, linux_xfer_osdata_shm, linux_xfer_osdata_sem) (linux_xfer_osdata_msg, linux_xfer_osdata_modules): Update. * nat/linux-btrace.c (linux_determine_kernel_start): Update. * linux-nat.c (linux_proc_pending_signals): Update. * dwarf2read.c (write_psymtabs_to_index): Use gdb_file_up. (file_closer): Remove. * compile/compile.c (compile_to_object): Update. * common/filestuff.h (struct gdb_file_deleter): New. (gdb_file_up): New typedef. (gdb_fopen_cloexec): Change return type. * common/filestuff.c (gdb_fopen_cloexec): Return gdb_file_up. * cli/cli-dump.c (fopen_with_cleanup): Remove. (dump_binary_file, restore_binary_file): Update. * auto-load.c (auto_load_objfile_script_1): Update.
2017-07-18Remove one line commentYao Qi1-2/+0
This patch is going to remove a line comment, which was added in this commit, commit 55fea07 Author: Jim Kingdon <jkingdon@engr.sgi.com> Date: Tue Sep 14 01:08:22 1993 +0000 * remote.c: Define remote_debug to 0 and #if 0 baud_rate. Temporary hack so this file compiles again. * remote-utils.c (gr_multi_scan): Cast return value from alloca. (gr_multi_scan): #if 0 never-reached return(-1). and at that moment, remote_prepare_to_store does updates some global state, static void remote_prepare_to_store () { /* Make sure the entire registers array is valid. */ read_register_bytes (0, (char *)NULL, REGISTER_BYTES); } However, now, remote_prepare_to_store doesn't do that at all, and rsa->sizeof_g_packet is updated in init_remote_state, so the line of comment is out of date, and this patch removes it. gdb: 2017-07-18 Yao Qi <yao.qi@linaro.org> * remote.c (store_registers_using_G): Remove one line comment.
2017-06-22Remove MAX_REGISTER_SIZE from py-unwind.cAlan Hayward1-6/+0
gdb/ * remote.c (cached_reg): Move from here... * regcache.h (cached_reg): ...to here. * python/py-unwind.c (struct reg_info): Remove. (cached_frame_info): Use cached_reg_t. (pyuw_prev_register): Likewise. (pyuw_sniffer): Use cached_reg_t and allocate registers. (pyuw_dealloc_cache): Free all registers.
2017-06-07Implement proper "startup-with-shell" support on gdbserverSergio Durigan Junior1-0/+20
This patch implements the proper support for the "startup-with-shell" feature on gdbserver. A new packet is added, QStartupWithShell, and it is sent on initialization. If the host sends a "QStartupWithShell:1", it means the inferior shall be started using a shell. If the host sends a "QStartupWithShell:0", it means the inferior shall be started without using a shell. Any other value is considered an error. There is no way to remotely set the shell that will be used by the target to start the inferior. In order to do that, the user must start gdbserver while providing a shell via the $SHELL environment variable. The same is true for the host side. The "set startup-with-shell" setting from the host side is used to decide whether to start the remote inferior using a shell. This same setting is also used to decide whether to use a shell to start the host inferior; this means that it is not really possible to start the inferior using different mechanisms on target and host. A documentation patch is included, along with a new testcase for the feature. gdb/ChangeLog: 2017-06-07 Sergio Durigan Junior <sergiodj@redhat.com> * NEWS (Changes since GDB 8.0): Announce that GDBserver is now able to start inferiors using a shell. (New remote packets): Announce new packet "QStartupWithShell". * remote.c: Add PACKET_QStartupWithShell. (extended_remote_create_inferior): Handle new PACKET_QStartupWithShell. (remote_protocol_features) <QStartupWithShell>: New entry for PACKET_QStartupWithShell. (_initialize_remote): Call "add_packet_config_cmd" for QStartupShell. gdb/gdbserver/ChangeLog: 2017-06-07 Sergio Durigan Junior <sergiodj@redhat.com> * server.c (handle_general_set): Handle new packet "QStartupWithShell". (handle_query): Add "QStartupWithShell" to the list of supported packets. (gdbserver_usage): Add help text explaining the new "--startup-with-shell" and "--no-startup-with-shell" CLI options. (captured_main): Recognize and act upon the presence of the new CLI options. gdb/testsuite/ChangeLog: 2017-06-07 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/startup-with-shell.c: New file. * gdb.base/startup-with-shell.exp: Likewise. gdb/doc/ChangeLog: 2017-06-07 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.texinfo (Starting) <startup-with-shell>: Add @anchor. (Connecting) <Remote Packet>: Add "startup-with-shell" and "QStartupWithShell" to the table. (Remote Protocol) <QStartupWithShell>: New item, explaining the packet.
2017-06-02C++ify breakpoint class hierarchy (destructors only)Simon Marchi1-2/+2
Breakpoints are currently in a limbo state between C and C++. There is a pseudo class hierarchy implemented using struct fields. Taking watchpoint as an example: struct watchpoint { /* The base class. */ struct breakpoint base; ... } and it is instantianted with "new watchpoint ()". When destroyed, a destructor is first invoked through the breakpoint_ops, and then the memory is freed by calling delete through a pointer to breakpoint. Address sanitizer complains about this, for example, because we new and delete the same memory using different types. This patch takes the logical step of making breakpoint subclasses extend the breakpoint class for real, and converts their destructors to actual C++ destructors. Regtested on the buildbot. gdb/ChangeLog: * breakpoint.h (struct breakpoint_ops) <dtor>: Remove. (struct breakpoint) <~breakpoint>: New. (struct watchpoint): Inherit from breakpoint. <~watchpoint>: New. <base>: Remove. (struct tracepoint): Inherit from breakpoint. <base>: Remove. * breakpoint.c (longjmp_breakpoint_ops): Remove. (struct longjmp_breakpoint): Inherit from breakpoint. <~longjmp_breakpoint>: New. <base>: Remove. (new_breakpoint_from_type): Remove casts. (watchpoint_in_thread_scope): Remove reference to base field. (watchpoint_del_at_next_stop): Likewise. (update_watchpoint): Likewise. (watchpoint_check): Likewise. (bpstat_check_watchpoint): Likewise. (set_longjmp_breakpoint): Likewise. (struct fork_catchpoint): Inherit from breakpoint. <base>: Remove. (struct solib_catchpoint): Inherit from breakpoint. <~solib_catchpoint>: New. <base>: Remove. (dtor_catch_solib): Change to ... (solib_catchpoint::~solib_catchpoint): ... this. (breakpoint_hit_catch_solib): Remove reference to base field. (add_solib_catchpoint): Likewise. (create_fork_vfork_event_catchpoint): Likewise. (struct exec_catchpoint): Inherit from breakpoint. <~exec_catchpoint>: New. <base>: Remove. (dtor_catch_exec): Change to ... (exec_catchpoint::~exec_catchpoint): ... this. (dtor_watchpoint): Change to ... (watchpoint::~watchpoint): ... this. (watch_command_1): Remove reference to base field. (catch_exec_command_1): Likewise. (base_breakpoint_dtor): Change to ... (breakpoint::~breakpoint): ... this. (base_breakpoint_ops): Remove dtor field value. (longjmp_bkpt_dtor): Change to ... (longjmp_breakpoint::~longjmp_breakpoint): ... this. (strace_marker_create_breakpoints_sal): Remove reference to base field. (delete_breakpoint): Don't manually call breakpoint destructor. (create_tracepoint_from_upload): Remove reference to base field. (trace_pass_set_count): Likewise. (initialize_breakpoint_ops): Don't initialize momentary_breakpoint_ops, don't set dtors. * ada-lang.c (struct ada_catchpoint): Inherit from breakpoint. <~ada_catchpoint>: New. <base>: Remove. (create_excep_cond_exprs): Remove reference to base field. (dtor_exception): Change to ... (ada_catchpoint::~ada_catchpoint): ... this. (dtor_catch_exception): Remove. (dtor_catch_exception_unhandled): Remove. (dtor_catch_assert): Remove. (create_ada_exception_catchpoint): Remove reference to base field. (initialize_ada_catchpoint_ops): Don't set dtors. * break-catch-sig.c (struct signal_catchpoint): Inherit from breakpoint. <~signal_catchpoint>: New. <base>: Remove. (signal_catchpoint_dtor): Change to ... (signal_catchpoint::~signal_catchpoint): ... this. (create_signal_catchpoint): Remove reference to base field. (initialize_signal_catchpoint_ops): Don't set dtor. * break-catch-syscall.c (struct syscall_catchpoint): Inherit from breakpoint. <~syscall_catchpoint>: New. <base>: Remove. (dtor_catch_syscall): Change to ... (syscall_catchpoint::~syscall_catchpoint): ... this. (create_syscall_event_catchpoint): Remove reference to base field. (initialize_syscall_catchpoint_ops): Don't set dtor. * break-catch-throw.c (struct exception_catchpoint): Inherit from breakpoint. <~exception_catchpoint>: New. <base>: Remove. (dtor_exception_catchpoint): Change to ... (exception_catchpoint::~exception_catchpoint): ... this. (handle_gnu_v3_exceptions): Remove reference to base field. (initialize_throw_catchpoint_ops): Don't set dtor. * ctf.c (ctf_get_traceframe_address): Remove reference to base field. * remote.c (remote_get_tracepoint_status): Likewise. * tracefile-tfile.c (tfile_get_traceframe_address): Likewise. * tracefile.c (tracefile_fetch_registers): Likewise. * tracepoint.c (actions_command): Likewise. (validate_actionline): Likewise. (tfind_1): Likewise. (get_traceframe_location): Likewise. (find_matching_tracepoint_location): Likewise. (parse_tracepoint_status): Likewise. * mi/mi-cmd-break.c (mi_cmd_break_passcount): Likewise.
2017-05-04RAII-fy make_cleanup_restore_current_thread & friendsPedro Alves1-3/+2
After all the make_cleanup_restore_current_thread fixing, I thought I'd convert that and its relatives (which are all cleanups) to RAII classes. scoped_restore_current_pspace_and_thread was put in a separate file to avoid a circular dependency. Tested on x86-64 Fedora 23, native and gdbserver. gdb/ChangeLog: 2017-05-04 Pedro Alves <palves@redhat.com> * Makefile.in (SFILES): Add progspace-and-thread.c. (HFILES_NO_SRCDIR): Add progspace-and-thread.h. (COMMON_OBS): Add progspace-and-thread.o. * breakpoint.c: Include "progspace-and-thread.h". (update_inserted_breakpoint_locations) (insert_breakpoint_locations, create_longjmp_master_breakpoint): Use scoped_restore_current_pspace_and_thread. (create_std_terminate_master_breakpoint): Use scoped_restore_current_program_space. (remove_breakpoint): Use scoped_restore_current_pspace_and_thread. (print_breakpoint_location): Use scoped_restore_current_program_space. (bp_loc_is_permanent): Use scoped_restore_current_pspace_and_thread. (resolve_sal_pc): Use scoped_restore_current_pspace_and_thread. (download_tracepoint_locations): Use scoped_restore_current_pspace_and_thread. (breakpoint_re_set): Use scoped_restore_current_pspace_and_thread. * exec.c (exec_close_1): Use scoped_restore_current_program_space. (enum step_over_calls_kind): Moved from inferior.h. (class scoped_restore_current_thread): New class. * gdbthread.h (make_cleanup_restore_current_thread): Delete declaration. (scoped_restore_current_thread): New class. * infcmd.c: Include "common/gdb_optional.h". (continue_1, proceed_after_attach): Use scoped_restore_current_thread. (notice_new_inferior): Use scoped_restore_current_thread. * inferior.c: Include "progspace-and-thread.h". (restore_inferior, save_current_inferior): Delete. (add_inferior_command, clone_inferior_command): Use scoped_restore_current_pspace_and_thread. * inferior.h (scoped_restore_current_inferior): New class. * infrun.c: Include "progspace-and-thread.h" and "common/gdb_optional.h". (follow_fork_inferior): Use scoped_restore_current_pspace_and_thread. (scoped_restore_exited_inferior): New class. (handle_vfork_child_exec_or_exit): Use scoped_restore_exited_inferior, scoped_restore_current_pspace_and_thread, scoped_restore_current_thread and scoped_restore. (fetch_inferior_event): Use scoped_restore_current_thread. * linespec.c (decode_line_full, decode_line_1): Use scoped_restore_current_program_space. * mi/mi-main.c: Include "progspace-and-thread.h". (exec_continue): Use scoped_restore_current_thread. (mi_cmd_exec_run): Use scoped_restore_current_pspace_and_thread. (mi_cmd_trace_frame_collected): Use scoped_restore_current_thread. * proc-service.c (ps_pglobal_lookup): Use scoped_restore_current_program_space. * progspace-and-thread.c: New file. * progspace-and-thread.h: New file. * progspace.c (release_program_space, clone_program_space): Use scoped_restore_current_program_space. (restore_program_space, save_current_program_space) (save_current_space_and_thread): Delete. (switch_to_program_space_and_thread): Moved to progspace-and-thread.c. * progspace.h (save_current_program_space) (save_current_space_and_thread): Delete declarations. (scoped_restore_current_program_space): New class. * remote.c (remote_btrace_maybe_reopen): Use scoped_restore_current_thread. * symtab.c: Include "progspace-and-thread.h". (skip_prologue_sal): Use scoped_restore_current_pspace_and_thread. * thread.c (print_thread_info_1): Use scoped_restore_current_thread. (struct current_thread_cleanup): Delete. (do_restore_current_thread_cleanup) (restore_current_thread_cleanup_dtor): Rename/convert both to ... (scoped_restore_current_thread::~scoped_restore_current_thread): ... this new dtor. (make_cleanup_restore_current_thread): Rename/convert to ... (scoped_restore_current_thread::scoped_restore_current_thread): ... this new ctor. (thread_apply_all_command): Use scoped_restore_current_thread. (thread_apply_command): Use scoped_restore_current_thread. * tracepoint.c (tdump_command): Use scoped_restore_current_thread. * varobj.c (value_of_root_1): Use scoped_restore_current_thread.
2017-04-22Use ui_out_emit_tupleTom Tromey1-9/+2
This patch changes various places to use ui_out_emit_tuple, eliminating a number of cleanups. This patch only tackles "easy" cases, which are ones where the cleanups in question were block-structured and did not involve any changes other than the obvious replacement. ChangeLog 2017-04-22 Tom Tromey <tom@tromey.com> * record-btrace.c (record_btrace_insn_history) (record_btrace_insn_history_range, record_btrace_call_history) (record_btrace_call_history_range): Use ui_out_emit_tuple. * thread.c (do_captured_list_thread_ids, print_thread_info_1): Use ui_out_emit_tuple. * stack.c (print_frame_info): Use ui_out_emit_tuple. * solib.c (info_sharedlibrary_command): Use ui_out_emit_tuple. * skip.c (skip_info): Use ui_out_emit_tuple. * remote.c (show_remote_cmd): Use ui_out_emit_tuple. * progspace.c (print_program_space): Use ui_out_emit_tuple. * probe.c (info_probes_for_ops): Use ui_out_emit_tuple. * osdata.c (info_osdata): Use ui_out_emit_tuple. * mi/mi-symbol-cmds.c (mi_cmd_symbol_list_lines): Use ui_out_emit_tuple. * mi/mi-main.c (print_one_inferior, list_available_thread_groups) (output_register, mi_cmd_data_read_memory) (mi_cmd_data_read_memory_bytes, mi_load_progress) (mi_cmd_trace_frame_collected): Use ui_out_emit_tuple. * mi/mi-cmd-var.c (mi_cmd_var_list_children, varobj_update_one): Use ui_out_emit_tuple. * mi/mi-cmd-stack.c (mi_cmd_stack_list_args): Use ui_out_emit_tuple. * mi/mi-cmd-info.c (mi_cmd_info_ada_exceptions) (mi_cmd_info_gdb_mi_command): Use ui_out_emit_tuple. * linux-thread-db.c (info_auto_load_libthread_db): Use ui_out_emit_tuple. * inferior.c (print_inferior): Use ui_out_emit_tuple. * gdb_bfd.c (print_one_bfd): Use ui_out_emit_tuple. * disasm.c (do_mixed_source_and_assembly_deprecated) (do_mixed_source_and_assembly): Use ui_out_emit_tuple. * cp-abi.c (list_cp_abis): Use ui_out_emit_tuple. * cli/cli-setshow.c (cmd_show_list): Use ui_out_emit_tuple. * breakpoint.c (print_one_breakpoint_location) (print_one_breakpoint): Use ui_out_emit_tuple. * auto-load.c (print_script, info_auto_load_cmd): Use ui_out_emit_tuple. * ada-tasks.c (print_ada_task_info): Use ui_out_emit_tuple.
2017-04-12Change breakpoint event locations to event_location_upTom Tromey1-1/+1
This is a follow-up to an earlier patch. It changes breakpoint's location and location_range_end members to be of type event_location_up, then fixes up the users. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * remote.c (remote_download_tracepoint): Update. * python/py-breakpoint.c (bppy_get_location): Update. * guile/scm-breakpoint.c (bpscm_print_breakpoint_smob) (gdbscm_breakpoint_location): Update. * elfread.c (elf_gnu_ifunc_resolver_return_stop): Update. * breakpoint.h (struct breakpoint) <location, location_range_end>: Change type to event_location_up. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (breakpoint_event_location_empty_p, print_breakpoint_location) (print_one_breakpoint_location, create_thread_event_breakpoint) (init_breakpoint_sal, create_breakpoint) (print_recreate_ranged_breakpoint, break_range_command) (init_ada_exception_breakpoint, say_where): Update. (base_breakpoint_dtor): Don't call delete_event_location. (bkpt_print_recreate, tracepoint_print_recreate) (dprintf_print_recreate, update_static_tracepoint) (breakpoint_re_set_default): Update.
2017-04-12C++-fy and prepare for sharing fork_inferiorSergio Durigan Junior1-6/+6
As a preparation for the next patch, which will move fork_inferior from GDB to common/ (and therefore share it with gdbserver), it is interesting to convert a few functions to C++. This patch touches functions related to parsing command-line arguments to the inferior (see gdb/fork-child.c:breakup_args), the way the arguments are stored on fork_inferior (using std::vector instead of char **), and the code responsible for dealing with argv also on gdbserver. I've taken this opportunity and decided to constify a few arguments to fork_inferior/create_inferior as well, in order to make the code cleaner. And now, on gdbserver, we're using xstrdup everywhere and aren't checking for memory allocation failures anymore, as requested by Pedro: <https://sourceware.org/ml/gdb-patches/2017-03/msg00191.html> Message-Id: <025ebdb9-90d9-d54a-c055-57ed2406b812@redhat.com> Pedro Alves wrote: > On the "== NULL" check: IIUC, the old NULL check was there to > handle strdup returning NULL due to out-of-memory. > See NULL checks and comments further above in this function. > Now that you're using a std::vector, that doesn't work or make > sense any longer, since if push_back fails to allocate space for > its internal buffer (with operator new), our operator new replacement > (common/new-op.c) calls malloc_failure, which aborts gdbserver. > > Not sure it makes sense to handle out-of-memory specially in > the gdb/rsp-facing functions nowadays (maybe git blame/log/patch > submission for that code shows some guidelines). Maybe (or, probably) > it's OK to stop caring about it, but then we should consistently remove > left over code, by using xstrdup instead and remove the NULL checks. IMO this refactoring was very good to increase the readability of the code as well, because some parts of the argument handling were unnecessarily confusing before. gdb/ChangeLog: 2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com> * common/common-utils.c (free_vector_argv): New function. * common/common-utils.h: Include <vector>. (free_vector_argv): New prototype. * darwin-nat.c (darwin_create_inferior): Rewrite function prototype in order to constify "exec_file" and accept a "std::string" for "allargs". * fork-child.c: Include <vector>. (breakup_args): Rewrite function, using C++. (fork_inferior): Rewrite function header, constify "exec_file_arg" and accept "std::string" for "allargs". Update the code to calculate "argv" based on "allargs". Update calls to "exec_fun" and "execvp". * gnu-nat.c (gnu_create_inferior): Rewrite function prototype in order to constify "exec_file" and accept a "std::string" for "allargs". * go32-nat.c (go32_create_inferior): Likewise. * inf-ptrace.c (inf_ptrace_create_inferior): Likewise. * infcmd.c (run_command_1): Constify "exec_file". Use "std::string" for inferior arguments. * inferior.h (fork_inferior): Update prototype. * linux-nat.c (linux_nat_create_inferior): Rewrite function prototype in order to constify "exec_file" and accept a "std::string" for "allargs". * nto-procfs.c (procfs_create_inferior): Likewise. * procfs.c (procfs_create_inferior): Likewise. * remote-sim.c (gdbsim_create_inferior): Likewise. * remote.c (extended_remote_run): Update code to accept "std::string" as argument. (extended_remote_create_inferior): Rewrite function prototype in order to constify "exec_file" and accept a "std::string" for "allargs". * rs6000-nat.c (super_create_inferior): Likewise. (rs6000_create_inferior): Likewise. * target.h (struct target_ops) <to_create_inferior>: Likewise. * windows-nat.c (windows_create_inferior): Likewise. gdb/gdbserver/ChangeLog: 2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com> * server.c: Include <vector>. <program_argv, wrapper_argv>: Convert to std::vector. (start_inferior): Rewrite function to use C++. (handle_v_run): Likewise. Update code that calculates the argv based on the vRun packet; use C++. (captured_main): Likewise.
2017-04-05-Wwrite-strings: The RestPedro Alves1-4/+4
This is the remainder boring constification that all looks more of less borderline obvious IMO. gdb/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * ada-exp.y (yyerror): Constify. * ada-lang.c (bound_name, get_selections) (ada_variant_discrim_type) (ada_variant_discrim_name, ada_value_struct_elt) (ada_lookup_struct_elt_type, is_unchecked_variant) (ada_which_variant_applies, standard_exc, ada_get_next_arg) (catch_ada_exception_command_split) (catch_ada_assert_command_split, catch_assert_command) (ada_op_name): Constify. * ada-lang.h (ada_yyerror, get_selections) (ada_variant_discrim_name, ada_value_struct_elt): Constify. * arc-tdep.c (arc_print_frame_cache): Constify. * arm-tdep.c (arm_skip_stub): Constify. * ax-gdb.c (gen_binop, gen_struct_ref_recursive, gen_struct_ref) (gen_aggregate_elt_ref): Constify. * bcache.c (print_bcache_statistics): Constify. * bcache.h (print_bcache_statistics): Constify. * break-catch-throw.c (catch_exception_command_1): * breakpoint.c (struct ep_type_description::description): Constify. (add_solib_catchpoint): Constify. (catch_fork_command_1): Add cast. (add_catch_command): Constify. * breakpoint.h (add_catch_command, add_solib_catchpoint): Constify. * bsd-uthread.c (bsd_uthread_state): Constify. * buildsym.c (patch_subfile_names): Constify. * buildsym.h (next_symbol_text_func, patch_subfile_names): Constify. * c-exp.y (yyerror): Constify. (token::oper): Constify. * c-lang.h (c_yyerror, cp_print_class_member): Constify. * c-varobj.c (cplus_describe_child): Constify. * charset.c (find_charset_names): Add cast. (find_charset_names): Constify array and add const_cast. * cli/cli-cmds.c (complete_command, cd_command): Constify. (edit_command): Constify. * cli/cli-decode.c (lookup_cmd): Constify. * cli/cli-dump.c (dump_memory_command, dump_value_command): Constify. (struct dump_context): Constify. (add_dump_command, restore_command): Constify. * cli/cli-script.c (get_command_line): Constify. * cli/cli-script.h (get_command_line): Constify. * cli/cli-utils.c (check_for_argument): Constify. * cli/cli-utils.h (check_for_argument): Constify. * coff-pe-read.c (struct read_pe_section_data): Constify. * command.h (lookup_cmd): Constify. * common/print-utils.c (decimal2str): Constify. * completer.c (gdb_print_filename): Constify. * corefile.c (set_gnutarget): Constify. * cp-name-parser.y (yyerror): Constify. * cp-valprint.c (cp_print_class_member): Constify. * cris-tdep.c (cris_register_name, crisv32_register_name): Constify. * d-exp.y (yyerror): Constify. (struct token::oper): Constify. * d-lang.h (d_yyerror): Constify. * dbxread.c (struct header_file_location::name): Constify. (add_old_header_file, add_new_header_file, last_function_name) (dbx_next_symbol_text, add_bincl_to_list) (find_corresponding_bincl_psymtab, set_namestring) (find_stab_function_addr, read_dbx_symtab, start_psymtab) (dbx_end_psymtab, read_ofile_symtab, process_one_symbol): * defs.h (command_line_input, print_address_symbolic) (deprecated_readline_begin_hook): Constify. * dwarf2read.c (anonymous_struct_prefix, dwarf_bool_name): Constify. * event-top.c (handle_line_of_input): Constify and add cast. * exceptions.c (catch_errors): Constify. * exceptions.h (catch_errors): Constify. * expprint.c (print_subexp_standard, op_string, op_name) (op_name_standard, dump_raw_expression, dump_raw_expression): * expression.h (op_name, op_string, dump_raw_expression): Constify. * f-exp.y (yyerror): Constify. (struct token::oper): Constify. (struct f77_boolean_val::name): Constify. * f-lang.c (f_word_break_characters): Constify. * f-lang.h (f_yyerror): Constify. * fork-child.c (fork_inferior): Add cast. * frv-tdep.c (struct gdbarch_tdep::register_names): Constify. (new_variant): Constify. * gdbarch.sh (pstring_ptr, pstring_list): Constify. * gdbarch.c: Regenerate. * gdbcore.h (set_gnutarget): Constify. * go-exp.y (yyerror): Constify. (token::oper): Constify. * go-lang.h (go_yyerror): Constify. * go32-nat.c (go32_sysinfo): Constify. * guile/scm-breakpoint.c (gdbscm_breakpoint_expression): Constify. * guile/scm-cmd.c (cmdscm_function): Constify. * guile/scm-param.c (pascm_param_value): Constify. * h8300-tdep.c (h8300_register_name, h8300s_register_name) (h8300sx_register_name): Constify. * hppa-tdep.c (hppa32_register_name, hppa64_register_name): Constify. * ia64-tdep.c (ia64_register_names): Constify. * infcmd.c (construct_inferior_arguments): Constify. (path_command, attach_post_wait): Constify. * language.c (show_range_command, show_case_command) (unk_lang_error): Constify. * language.h (language_defn::la_error) (language_defn::la_name_of_this): Constify. * linespec.c (decode_line_2): Constify. * linux-thread-db.c (thread_db_err_str): Constify. * lm32-tdep.c (lm32_register_name): Constify. * m2-exp.y (yyerror): Constify. * m2-lang.h (m2_yyerror): Constify. * m32r-tdep.c (m32r_register_names): Constify and make static. * m68hc11-tdep.c (m68hc11_register_names): Constify. * m88k-tdep.c (m88k_register_name): Constify. * macroexp.c (appendmem): Constify. * mdebugread.c (fdr_name, add_data_symbol, parse_type) (upgrade_type, parse_external, parse_partial_symbols) (mdebug_next_symbol_text, cross_ref, mylookup_symbol, new_psymtab) (new_symbol): Constify. * memattr.c (mem_info_command): Constify. * mep-tdep.c (register_name_from_keyword): Constify. * mi/mi-cmd-env.c (mi_cmd_env_path, _initialize_mi_cmd_env): Constify. * mi/mi-cmd-stack.c (list_args_or_locals): Constify. * mi/mi-cmd-var.c (mi_cmd_var_show_attributes): Constify. * mi/mi-main.c (captured_mi_execute_command): Constify and add cast. (mi_execute_async_cli_command): Constify. * mips-tdep.c (mips_register_name): Constify. * mn10300-tdep.c (register_name, mn10300_generic_register_name) (am33_register_name, am33_2_register_name) * moxie-tdep.c (moxie_register_names): Constify. * nat/linux-osdata.c (osdata_type): Constify fields. * nto-tdep.c (nto_parse_redirection): Constify. * objc-lang.c (lookup_struct_typedef, lookup_objc_class) (lookup_child_selector): Constify. (objc_methcall::name): Constify. * objc-lang.h (lookup_objc_class, lookup_child_selector) (lookup_struct_typedef): Constify. * objfiles.c (pc_in_section): Constify. * objfiles.h (pc_in_section): Constify. * p-exp.y (struct token::oper): Constify. (yyerror): Constify. * p-lang.h (pascal_yyerror): Constify. * parser-defs.h (op_name_standard): Constify. (op_print::string): Constify. (exp_descriptor::op_name): Constify. * printcmd.c (print_address_symbolic): Constify. * psymtab.c (print_partial_symbols): Constify. * python/py-breakpoint.c (stop_func): Constify. (bppy_get_expression): Constify. * python/py-cmd.c (cmdpy_completer::name): Constify. (cmdpy_function): Constify. * python/py-event.c (evpy_add_attribute) (gdbpy_initialize_event_generic): Constify. * python/py-event.h (evpy_add_attribute) (gdbpy_initialize_event_generic): Constify. * python/py-evts.c (add_new_registry): Constify. * python/py-finishbreakpoint.c (outofscope_func): Constify. * python/py-framefilter.c (get_py_iter_from_func): Constify. * python/py-inferior.c (get_buffer): Add cast. * python/py-param.c (parm_constant::name): Constify. * python/py-unwind.c (fprint_frame_id): Constify. * python/python.c (gdbpy_parameter_value): Constify. * remote-fileio.c (remote_fio_func_map): Make 'name' const. * remote.c (memory_packet_config::name): Constify. (show_packet_config_cmd, remote_write_bytes) (remote_buffer_add_string): * reverse.c (exec_reverse_once): Constify. * rs6000-tdep.c (variant::name, variant::description): Constify. * rust-exp.y (rustyyerror): Constify. * rust-lang.c (rust_op_name): Constify. * rust-lang.h (rustyyerror): Constify. * serial.h (serial_ops::name): Constify. * sh-tdep.c (sh_sh_register_name, sh_sh3_register_name) (sh_sh3e_register_name, sh_sh2e_register_name) (sh_sh2a_register_name, sh_sh2a_nofpu_register_name) (sh_sh_dsp_register_name, sh_sh3_dsp_register_name) (sh_sh4_register_name, sh_sh4_nofpu_register_name) (sh_sh4al_dsp_register_name): Constify. * sh64-tdep.c (sh64_register_name): Constify. * solib-darwin.c (lookup_symbol_from_bfd): Constify. * spu-tdep.c (spu_register_name, info_spu_dma_cmdlist): Constify. * stabsread.c (patch_block_stabs, read_type_number) (ref_map::stabs, ref_add, process_reference) (symbol_reference_defined, define_symbol, define_symbol) (error_type, read_type, read_member_functions, read_cpp_abbrev) (read_one_struct_field, read_struct_fields, read_baseclasses) (read_tilde_fields, read_struct_type, read_array_type) (read_enum_type, read_sun_builtin_type, read_sun_floating_type) (read_huge_number, read_range_type, read_args, common_block_start) (find_name_end): Constify. * stabsread.h (common_block_start, define_symbol) (process_one_symbol, symbol_reference_defined, ref_add): * symfile.c (get_section_index, add_symbol_file_command): * symfile.h (get_section_index): Constify. * target-descriptions.c (tdesc_type::name): Constify. (tdesc_free_type): Add cast. * target.c (find_default_run_target): (add_deprecated_target_alias, find_default_run_target) (target_announce_detach): Constify. (do_option): Constify. * target.h (add_deprecated_target_alias): Constify. * thread.c (print_thread_info_1): Constify. * top.c (deprecated_readline_begin_hook, command_line_input): Constify. (init_main): Add casts. * top.h (handle_line_of_input): Constify. * tracefile-tfile.c (tfile_write_uploaded_tsv): Constify. * tracepoint.c (tvariables_info_1, trace_status_mi): Constify. (tfind_command): Rename to ... (tfind_command_1): ... this and constify. (tfind_command): New function. (tfind_end_command, tfind_start_command): Adjust. (encode_source_string): Constify. * tracepoint.h (encode_source_string): Constify. * tui/tui-data.c (tui_partial_win_by_name): Constify. * tui/tui-data.h (tui_partial_win_by_name): Constify. * tui/tui-source.c (tui_set_source_content_nil): Constify. * tui/tui-source.h (tui_set_source_content_nil): Constify. * tui/tui-win.c (parse_scrolling_args): Constify. * tui/tui-windata.c (tui_erase_data_content): Constify. * tui/tui-windata.h (tui_erase_data_content): Constify. * tui/tui-winsource.c (tui_erase_source_content): Constify. * tui/tui.c (tui_enable): Add cast. * utils.c (defaulted_query): Constify. (init_page_info): Add cast. (puts_debug, subset_compare): Constify. * utils.h (subset_compare): Constify. * varobj.c (varobj_format_string): Constify. * varobj.h (varobj_format_string): Constify. * vax-tdep.c (vax_register_name): Constify. * windows-nat.c (windows_detach): Constify. * xcoffread.c (process_linenos, xcoff_next_symbol_text): Constify. * xml-support.c (gdb_xml_end_element): Constify. * xml-tdesc.c (tdesc_start_reg): Constify. * xstormy16-tdep.c (xstormy16_register_name): Constify. * xtensa-tdep.c (xtensa_find_register_by_name): Constify. * xtensa-tdep.h (xtensa_register_t::name): Constify. gdb/gdbserver/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * gdbreplay.c (sync_error): Constify. * linux-x86-low.c (push_opcode): Constify.
2017-04-05-Wwrite-strings: Constify target_pid_to_str and target_thread_extra_thread_infoPedro Alves1-2/+2
-Wwrite-strings flagged a missing cast for example here: static char * ravenscar_extra_thread_info (struct target_ops *self, struct thread_info *tp) { return "Ravenscar task"; Since callers are not supposed to free the string returned by these methods, change the methods' signature to return const strings. gdb/ChangeLog: 2017-04-05 Pedro Alves <palves@redhat.com> * aix-thread.c (aix_thread_pid_to_str) (aix_thread_extra_thread_info): Constify. * bsd-kvm.c (bsd_kvm_pid_to_str): Constify. * bsd-uthread.c (bsd_uthread_extra_thread_info) (bsd_uthread_pid_to_str): Constify. * corelow.c (core_pid_to_str): Constify. * darwin-nat.c (darwin_pid_to_str): Constify. * fbsd-nat.c (fbsd_pid_to_str): Constify. * fbsd-tdep.c (fbsd_core_pid_to_str, gdbarch_core_pid_to_str): Constify. * gnu-nat.c (gnu_pid_to_str): Constify. * go32-nat.c (go32_pid_to_str): Constify. * i386-cygwin-tdep.c (i386_windows_core_pid_to_str): Constify. * inf-ptrace.c (inf_ptrace_pid_to_str): Constify. * inferior.c (inferior_pid_to_str): Constify. * linux-nat.c (linux_nat_pid_to_str): Constify. * linux-tdep.c (linux_core_pid_to_str): Constify. * linux-thread-db.c (thread_db_pid_to_str) (thread_db_extra_thread_info): Constify. * nto-tdep.c (nto_extra_thread_info): Constify. * nto-tdep.h (nto_extra_thread_info): Constify. * obsd-nat.c (obsd_pid_to_str): Constify. * procfs.c (procfs_pid_to_str): Constify. * ravenscar-thread.c (ravenscar_extra_thread_info) (ravenscar_pid_to_str): Constify. * remote-sim.c (gdbsim_pid_to_str): Constify. * remote.c (remote_threads_extra_info, remote_pid_to_str): Constify. * sol-thread.c (solaris_pid_to_str): Constify. * sol2-tdep.c (sol2_core_pid_to_str): Constify. * sol2-tdep.h (sol2_core_pid_to_str): Constify. * target.c (default_pid_to_str, target_pid_to_str) (normal_pid_to_str, default_pid_to_str): Constify. * target.h (target_ops::to_pid_to_str) (target_ops::to_extra_thread_info): Constify. (target_pid_to_str, normal_pid_to_str): Constify. * windows-nat.c (windows_pid_to_str): Constify. * gdbarch.sh (core_pid_to_str): Constify. * target-delegates.c: Regenerate. * gdbarch.h, gdbarch.c: Regenerate.
2017-04-04remote.c: Use ptid_t instead of struct ptidSimon Marchi1-5/+5
It's the only place in the codebase that uses "struct ptid", so change it to ptid_t for consistency. gdb/ChangeLog: * remote.c (set_general_thread, set_continue_thread): Use ptid_t instead of struct ptid.
2017-03-20Use ptid from regcache in almost all remaining nat filesSimon Marchi1-2/+2
This patch contains almost all of the remaining changes needed to make to_fetch_registers/to_store_registers/to_prepare_to_store independent of inferior_ptid. It contains only some "trivial" changes, the more complicated ones are in separate patches. gdb/ChangeLog: * i386-linux-nat.c (fetch_register, store_register, i386_linux_fetch_inferior_registers, i386_linux_store_inferior_registers): Use ptid from regcache. * ia64-linux-nat.c (ia64_linux_fetch_register, ia64_linux_store_register): Likewise. * inf-ptrace.c (inf_ptrace_fetch_register, inf_ptrace_store_register): Likewise. * m32r-linux-nat.c (m32r_linux_fetch_inferior_registers, m32r_linux_store_inferior_registers): Likewise. * m68k-bsd-nat.c (m68kbsd_fetch_inferior_registers, m68kbsd_store_inferior_registers): Likewise. * m68k-linux-nat.c (fetch_register, store_register, m68k_linux_fetch_inferior_registers, m68k_linux_store_inferior_registers): Likewise. * m88k-bsd-nat.c (m88kbsd_fetch_inferior_registers, m88kbsd_store_inferior_registers): Likewise. * mips-fbsd-nat.c (mips_fbsd_fetch_inferior_registers, mips_fbsd_store_inferior_registers): Likewise. * mips-linux-nat.c (mips64_linux_regsets_fetch_registers, mips64_linux_regsets_store_registers): Likewise. * mips-nbsd-nat.c (mipsnbsd_fetch_inferior_registers, mipsnbsd_store_inferior_registers): Likewise. * mips-obsd-nat.c (mips64obsd_fetch_inferior_registers, mips64obsd_store_inferior_registers): Likewise. * nto-procfs.c (procfs_fetch_registers, procfs_store_registers): Likewise. * ppc-fbsd-nat.c (ppcfbsd_fetch_inferior_registers, ppcfbsd_store_inferior_registers): Likewise. * ppc-linux-nat.c (ppc_linux_fetch_inferior_registers, ppc_linux_store_inferior_registers): Likewise. * ppc-nbsd-nat.c (ppcnbsd_fetch_inferior_registers, ppcnbsd_store_inferior_registers): Likewise. * ppc-obsd-nat.c (ppcobsd_fetch_registers, ppcobsd_store_registers): Likewise. * procfs.c (procfs_fetch_registers, procfs_store_registers): Likewise. * ravenscar-thread.c (ravenscar_fetch_registers, ravenscar_store_registers, ravenscar_prepare_to_store): Likewise. * record-btrace.c (record_btrace_fetch_registers, record_btrace_store_registers, record_btrace_prepare_to_store): Likewise. * remote-sim.c (gdbsim_fetch_register, gdbsim_store_register): Lookup inferior using ptid from regcache, instead of current_inferior. * remote.c (remote_fetch_registers, remote_store_registers): Use ptid from regcache. * rs6000-nat.c (fetch_register, store_register): Likewise. * s390-linux-nat.c (s390_linux_fetch_inferior_registers, s390_linux_store_inferior_registers): Likewise. * sh-nbsd-nat.c (shnbsd_fetch_inferior_registers, shnbsd_store_inferior_registers): Likewise. * sol-thread.c (sol_thread_fetch_registers, sol_thread_store_registers): Likewise. * sparc-nat.c (sparc_fetch_inferior_registers, sparc_store_inferior_registers): Likewise. * tilegx-linux-nat.c (fetch_inferior_registers, store_inferior_registers): Likewise. * vax-bsd-nat.c (vaxbsd_fetch_inferior_registers, vaxbsd_store_inferior_registers): Likewise. * xtensa-linux-nat.c (fetch_gregs, store_gregs, fetch_xtregs, store_xtregs): Likewise.
2017-03-20Remove unused parameter in solib_add and update_solib_listMarc-Andre Laperle1-1/+1
The target parameter in both solib_add and update_solib_list functions is not used anymore and as not been used for a while. This change removes the parameter to clean up the code a little bit. gdb/ChangeLog: * infcmd.c (post_create_inferior): Remove unused argument in call to solib_add. * remote.c (remote_start_remote): Likewise. * solib-frv.c (frv_fetch_objfile_link_map): Likewise. * solib-svr4.c: (svr4_fetch_objfile_link_map): Likewise. (enable_break): Likewise. * solib.c (update_solib_list): Remove unused target argument and its documentation. (solib_add): Remove unused target argument. Remove unused argument in call to update_solib_list. (info_sharedlibrary_command): Remove unused argument in call to update_solib_list. (sharedlibrary_command): Remove unused argument in call to solib_add. (handle_solib_event): Likewise. (reload_shared_libraries): Likewise. * solib.h (solib_add): Remove unused target argument. Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
2017-03-03Use range-based for loop in remote_add_target_side_commandsSimon Marchi1-3/+1
gdb/ChangeLog: * remote.c (remote_add_target_side_commands): Use range-based for loop.
2017-02-27Remove struct keyword from range-based for loopSimon Marchi1-1/+1
The previous patch introduced this error with recent-ish GCCs: ../../binutils-gdb/gdb/remote.c: In function ‘int remote_add_target_side_condition(gdbarch*, bp_target_info*, char*, char*)’: ../../binutils-gdb/gdb/remote.c:9668:8: error: types may not be defined in a for-range-declaration [-Werror] for (struct agent_expr *aexpr : bp_tgt->conditions) ^~~~~~ Removing the struct keyword fixes the error. gdb/ChangeLog: * remote.c (remote_add_target_side_condition): Remove "struct" keyword from range-based for loop.
2017-02-27Use range-based for loop in remote_add_target_side_conditionSimon Marchi1-4/+2
Using a range based for loop makes this code a bit more clean and readable. The comment above is clearly erroneous, so I've updated it. gdb/ChangeLog: * remote.c (remote_add_target_side_condition): Use range-based for loop. Update comment.
2017-02-27Remove MAX_REGISTER_SIZE from remote.cAlan Hayward1-2/+1
gdb/ * regcache.c (regcache_raw_update): New function. (regcache_raw_read): Move code to regcache_raw_update. * regcache.h (regcache_raw_update): New declaration. * remote.c (remote_prepare_to_store): Call regcache_raw_update.
2017-02-02Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchyPedro Alves1-9/+3
This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-01-18Allocate data in cached_reg_tAlan Hayward1-6/+18
2017-01-18 Alan Hayward <alan.hayward@arm.com> * remote.c (struct cached_reg): Change data into a pointer. * (stop_reply_dtr): Free data pointers before deleting vector. (process_stop_reply): Likewise. (remote_parse_stop_reply): Allocate space for data
2017-01-18Use register_size () instead of MAX_REGISTER_SIZEAlan Hayward1-2/+3
2017-01-18 Alan Hayward <alan.hayward@arm.com> * amd64-tdep.c (amd64_pseudo_register_read_value): remove MAX_REGISTER_SIZE. (amd64_pseudo_register_read_value): Likewise. * remote.c (fetch_register_using_p): Remove MAX_REGISTER_SIZE. (store_register_using_P): Likewise. * regcache.c (regcache_xfer_part): Likewise.