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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [gdb/] [gdb-events.c] - Rev 348
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/* User Interface Events. Copyright (C) 1999, 2001, 2002, 2004, 2005, 2007, 2008 Free Software Foundation, Inc. Contributed by Cygnus Solutions. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Work in progress */ /* This file was created with the aid of ``gdb-events.sh''. The bourn shell script ``gdb-events.sh'' creates the files ``new-gdb-events.c'' and ``new-gdb-events.h and then compares them against the existing ``gdb-events.[hc]''. Any differences found being reported. If editing this file, please also run gdb-events.sh and merge any changes into that script. Conversely, when making sweeping changes to this file, modifying gdb-events.sh and using its output may prove easier. */ #include "defs.h" #include "gdb-events.h" #include "gdbcmd.h" static struct gdb_events null_event_hooks; static struct gdb_events queue_event_hooks; static struct gdb_events *current_event_hooks = &null_event_hooks; int gdb_events_debug; static void show_gdb_events_debug (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) { fprintf_filtered (file, _("Event debugging is %s.\n"), value); } void breakpoint_create_event (int b) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "breakpoint_create_event\n"); if (!current_event_hooks->breakpoint_create) return; current_event_hooks->breakpoint_create (b); } void breakpoint_delete_event (int b) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "breakpoint_delete_event\n"); if (!current_event_hooks->breakpoint_delete) return; current_event_hooks->breakpoint_delete (b); } void breakpoint_modify_event (int b) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "breakpoint_modify_event\n"); if (!current_event_hooks->breakpoint_modify) return; current_event_hooks->breakpoint_modify (b); } void tracepoint_create_event (int number) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "tracepoint_create_event\n"); if (!current_event_hooks->tracepoint_create) return; current_event_hooks->tracepoint_create (number); } void tracepoint_delete_event (int number) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "tracepoint_delete_event\n"); if (!current_event_hooks->tracepoint_delete) return; current_event_hooks->tracepoint_delete (number); } void tracepoint_modify_event (int number) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "tracepoint_modify_event\n"); if (!current_event_hooks->tracepoint_modify) return; current_event_hooks->tracepoint_modify (number); } void architecture_changed_event (void) { if (gdb_events_debug) fprintf_unfiltered (gdb_stdlog, "architecture_changed_event\n"); if (!current_event_hooks->architecture_changed) return; current_event_hooks->architecture_changed (); } struct gdb_events * deprecated_set_gdb_event_hooks (struct gdb_events *vector) { struct gdb_events *old_events = current_event_hooks; if (vector == NULL) current_event_hooks = &queue_event_hooks; else current_event_hooks = vector; return old_events; } void clear_gdb_event_hooks (void) { deprecated_set_gdb_event_hooks (&null_event_hooks); } enum gdb_event { breakpoint_create, breakpoint_delete, breakpoint_modify, tracepoint_create, tracepoint_delete, tracepoint_modify, architecture_changed, nr_gdb_events }; struct breakpoint_create { int b; }; struct breakpoint_delete { int b; }; struct breakpoint_modify { int b; }; struct tracepoint_create { int number; }; struct tracepoint_delete { int number; }; struct tracepoint_modify { int number; }; struct event { enum gdb_event type; struct event *next; union { struct breakpoint_create breakpoint_create; struct breakpoint_delete breakpoint_delete; struct breakpoint_modify breakpoint_modify; struct tracepoint_create tracepoint_create; struct tracepoint_delete tracepoint_delete; struct tracepoint_modify tracepoint_modify; } data; }; struct event *pending_events; struct event *delivering_events; static void append (struct event *new_event) { struct event **event = &pending_events; while ((*event) != NULL) event = &((*event)->next); (*event) = new_event; (*event)->next = NULL; } static void queue_breakpoint_create (int b) { struct event *event = XMALLOC (struct event); event->type = breakpoint_create; event->data.breakpoint_create.b = b; append (event); } static void queue_breakpoint_delete (int b) { struct event *event = XMALLOC (struct event); event->type = breakpoint_delete; event->data.breakpoint_delete.b = b; append (event); } static void queue_breakpoint_modify (int b) { struct event *event = XMALLOC (struct event); event->type = breakpoint_modify; event->data.breakpoint_modify.b = b; append (event); } static void queue_tracepoint_create (int number) { struct event *event = XMALLOC (struct event); event->type = tracepoint_create; event->data.tracepoint_create.number = number; append (event); } static void queue_tracepoint_delete (int number) { struct event *event = XMALLOC (struct event); event->type = tracepoint_delete; event->data.tracepoint_delete.number = number; append (event); } static void queue_tracepoint_modify (int number) { struct event *event = XMALLOC (struct event); event->type = tracepoint_modify; event->data.tracepoint_modify.number = number; append (event); } static void queue_architecture_changed (void) { struct event *event = XMALLOC (struct event); event->type = architecture_changed; append (event); } void gdb_events_deliver (struct gdb_events *vector) { /* Just zap any events left around from last time. */ while (delivering_events != NULL) { struct event *event = delivering_events; delivering_events = event->next; xfree (event); } /* Process any pending events. Because one of the deliveries could bail out we move everything off of the pending queue onto an in-progress queue where it can, later, be cleaned up if necessary. */ delivering_events = pending_events; pending_events = NULL; while (delivering_events != NULL) { struct event *event = delivering_events; switch (event->type) { case breakpoint_create: vector->breakpoint_create (event->data.breakpoint_create.b); break; case breakpoint_delete: vector->breakpoint_delete (event->data.breakpoint_delete.b); break; case breakpoint_modify: vector->breakpoint_modify (event->data.breakpoint_modify.b); break; case tracepoint_create: vector->tracepoint_create (event->data.tracepoint_create.number); break; case tracepoint_delete: vector->tracepoint_delete (event->data.tracepoint_delete.number); break; case tracepoint_modify: vector->tracepoint_modify (event->data.tracepoint_modify.number); break; case architecture_changed: vector->architecture_changed (); break; } delivering_events = event->next; xfree (event); } } void _initialize_gdb_events (void); void _initialize_gdb_events (void) { struct cmd_list_element *c; queue_event_hooks.breakpoint_create = queue_breakpoint_create; queue_event_hooks.breakpoint_delete = queue_breakpoint_delete; queue_event_hooks.breakpoint_modify = queue_breakpoint_modify; queue_event_hooks.tracepoint_create = queue_tracepoint_create; queue_event_hooks.tracepoint_delete = queue_tracepoint_delete; queue_event_hooks.tracepoint_modify = queue_tracepoint_modify; queue_event_hooks.architecture_changed = queue_architecture_changed; add_setshow_zinteger_cmd ("event", class_maintenance, &gdb_events_debug, _("\ Set event debugging."), _("\ Show event debugging."), _("\ When non-zero, event/notify debugging is enabled."), NULL, show_gdb_events_debug, &setdebuglist, &showdebuglist); }
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