From 76727919ceb590f03ff0f6db08b7ceab5b7aeaff Mon Sep 17 00:00:00 2001 From: Tom Tromey Date: Sun, 2 Oct 2016 10:50:20 -0600 Subject: Convert observers to C++ This converts observers from using a special source-generating script to be plain C++. This version of the patch takes advantage of C++11 by using std::function and variadic templates; incorporates Pedro's patches; and renames the header file to "observable.h" (this change eliminates the need for a clean rebuild). Note that Pedro's patches used a template lambda in tui-hooks.c, but this failed to compile on some buildbot instances (presumably due to differing C++ versions); I replaced this with an ordinary template function. Regression tested on the buildbot. gdb/ChangeLog 2018-03-19 Pedro Alves Tom Tromey * unittests/observable-selftests.c: New file. * common/observable.h: New file. * observable.h: New file. * ada-lang.c, ada-tasks.c, agent.c, aix-thread.c, annotate.c, arm-tdep.c, auto-load.c, auxv.c, break-catch-syscall.c, breakpoint.c, bsd-uthread.c, cli/cli-interp.c, cli/cli-setshow.c, corefile.c, dummy-frame.c, event-loop.c, event-top.c, exec.c, extension.c, frame.c, gdbarch.c, guile/scm-breakpoint.c, infcall.c, infcmd.c, inferior.c, inflow.c, infrun.c, jit.c, linux-tdep.c, linux-thread-db.c, m68klinux-tdep.c, mi/mi-cmd-break.c, mi/mi-interp.c, mi/mi-main.c, objfiles.c, ppc-linux-nat.c, ppc-linux-tdep.c, printcmd.c, procfs.c, python/py-breakpoint.c, python/py-finishbreakpoint.c, python/py-inferior.c, python/py-unwind.c, ravenscar-thread.c, record-btrace.c, record-full.c, record.c, regcache.c, remote.c, riscv-tdep.c, sol-thread.c, solib-aix.c, solib-spu.c, solib.c, spu-multiarch.c, spu-tdep.c, stack.c, symfile-mem.c, symfile.c, symtab.c, thread.c, top.c, tracepoint.c, tui/tui-hooks.c, tui/tui-interp.c, valops.c: Update all users. * tui/tui-hooks.c (tui_bp_created_observer) (tui_bp_deleted_observer, tui_bp_modified_observer) (tui_inferior_exit_observer, tui_before_prompt_observer) (tui_normal_stop_observer, tui_register_changed_observer): Remove. (tui_observers_token): New global. (attach_or_detach, tui_attach_detach_observers): New functions. (tui_install_hooks, tui_remove_hooks): Use tui_attach_detach_observers. * record-btrace.c (record_btrace_thread_observer): Remove. (record_btrace_thread_observer_token): New global. * observer.sh: Remove. * observer.c: Rename to observable.c. * observable.c (namespace gdb_observers): Define new objects. (observer_debug): Move into gdb_observers namespace. (struct observer, struct observer_list, xalloc_observer_list_node) (xfree_observer_list_node, generic_observer_attach) (generic_observer_detach, generic_observer_notify): Remove. (_initialize_observer): Update. Don't include observer.inc. * Makefile.in (generated_files): Remove observer.h, observer.inc. (clean mostlyclean): Likewise. (observer.h, observer.inc): Remove targets. (SUBDIR_UNITTESTS_SRCS): Add observable-selftests.c. (COMMON_SFILES): Use observable.c, not observer.c. * .gitignore: Remove observer.h. gdb/doc/ChangeLog 2018-03-19 Tom Tromey * observer.texi: Remove. gdb/testsuite/ChangeLog 2018-03-19 Tom Tromey * gdb.gdb/observer.exp: Remove. --- gdb/observable.c | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 gdb/observable.c (limited to 'gdb/observable.c') diff --git a/gdb/observable.c b/gdb/observable.c new file mode 100644 index 0000000..5539b98 --- /dev/null +++ b/gdb/observable.c @@ -0,0 +1,99 @@ +/* GDB Notifications to Observers. + + Copyright (C) 2003-2018 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include "defs.h" +#include "observable.h" +#include "command.h" +#include "gdbcmd.h" + +namespace gdb +{ + +namespace observers +{ + +unsigned int observer_debug; + +#define DEFINE_OBSERVABLE(name) decltype (name) name (# name) + +DEFINE_OBSERVABLE (normal_stop); +DEFINE_OBSERVABLE (signal_received); +DEFINE_OBSERVABLE (end_stepping_range); +DEFINE_OBSERVABLE (signal_exited); +DEFINE_OBSERVABLE (exited); +DEFINE_OBSERVABLE (no_history); +DEFINE_OBSERVABLE (sync_execution_done); +DEFINE_OBSERVABLE (command_error); +DEFINE_OBSERVABLE (target_changed); +DEFINE_OBSERVABLE (executable_changed); +DEFINE_OBSERVABLE (inferior_created); +DEFINE_OBSERVABLE (record_changed); +DEFINE_OBSERVABLE (solib_loaded); +DEFINE_OBSERVABLE (solib_unloaded); +DEFINE_OBSERVABLE (new_objfile); +DEFINE_OBSERVABLE (free_objfile); +DEFINE_OBSERVABLE (new_thread); +DEFINE_OBSERVABLE (thread_exit); +DEFINE_OBSERVABLE (thread_stop_requested); +DEFINE_OBSERVABLE (target_resumed); +DEFINE_OBSERVABLE (about_to_proceed); +DEFINE_OBSERVABLE (breakpoint_created); +DEFINE_OBSERVABLE (breakpoint_deleted); +DEFINE_OBSERVABLE (breakpoint_modified); +DEFINE_OBSERVABLE (traceframe_changed); +DEFINE_OBSERVABLE (architecture_changed); +DEFINE_OBSERVABLE (thread_ptid_changed); +DEFINE_OBSERVABLE (inferior_added); +DEFINE_OBSERVABLE (inferior_appeared); +DEFINE_OBSERVABLE (inferior_exit); +DEFINE_OBSERVABLE (inferior_removed); +DEFINE_OBSERVABLE (memory_changed); +DEFINE_OBSERVABLE (before_prompt); +DEFINE_OBSERVABLE (gdb_datadir_changed); +DEFINE_OBSERVABLE (command_param_changed); +DEFINE_OBSERVABLE (tsv_created); +DEFINE_OBSERVABLE (tsv_deleted); +DEFINE_OBSERVABLE (tsv_modified); +DEFINE_OBSERVABLE (inferior_call_pre); +DEFINE_OBSERVABLE (inferior_call_post); +DEFINE_OBSERVABLE (register_changed); +DEFINE_OBSERVABLE (user_selected_context_changed); + +} /* namespace observers */ +} /* namespace gdb */ + +static void +show_observer_debug (struct ui_file *file, int from_tty, + struct cmd_list_element *c, const char *value) +{ + fprintf_filtered (file, _("Observer debugging is %s.\n"), value); +} + +void +_initialize_observer (void) +{ + add_setshow_zuinteger_cmd ("observer", class_maintenance, + &gdb::observers::observer_debug, _("\ +Set observer debugging."), _("\ +Show observer debugging."), _("\ +When non-zero, observer debugging is enabled."), + NULL, + show_observer_debug, + &setdebuglist, &showdebuglist); +} -- cgit v1.1