mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 18:14:13 +08:00
255 lines
9.9 KiB
C++
255 lines
9.9 KiB
C++
/* Observers
|
|
|
|
Copyright (C) 2016-2020 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 <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef OBSERVABLE_H
|
|
#define OBSERVABLE_H
|
|
|
|
#include "gdbsupport/observable.h"
|
|
|
|
struct bpstats;
|
|
struct so_list;
|
|
struct objfile;
|
|
struct thread_info;
|
|
struct inferior;
|
|
struct trace_state_variable;
|
|
|
|
namespace gdb
|
|
{
|
|
|
|
namespace observers
|
|
{
|
|
|
|
/* The inferior has stopped for real. The BS argument describes the
|
|
breakpoints were are stopped at, if any. Second argument
|
|
PRINT_FRAME non-zero means display the location where the
|
|
inferior has stopped.
|
|
|
|
gdb notifies all normal_stop observers when the inferior execution
|
|
has just stopped, the associated messages and annotations have been
|
|
printed, and the control is about to be returned to the user.
|
|
|
|
Note that the normal_stop notification is not emitted when the
|
|
execution stops due to a breakpoint, and this breakpoint has a
|
|
condition that is not met. If the breakpoint has any associated
|
|
commands list, the commands are executed after the notification is
|
|
emitted. */
|
|
extern observable<struct bpstats */* bs */, int /* print_frame */> normal_stop;
|
|
|
|
/* The inferior was stopped by a signal. */
|
|
extern observable<enum gdb_signal /* siggnal */> signal_received;
|
|
|
|
/* We are done with a step/next/si/ni command. */
|
|
extern observable<> end_stepping_range;
|
|
|
|
/* The inferior was terminated by a signal. */
|
|
extern observable<enum gdb_signal /* siggnal */> signal_exited;
|
|
|
|
/* The inferior program is finished. */
|
|
extern observable<int /* exitstatus */> exited;
|
|
|
|
/* Reverse execution: target ran out of history info. */
|
|
extern observable<> no_history;
|
|
|
|
/* A synchronous command finished. */
|
|
extern observable<> sync_execution_done;
|
|
|
|
/* An error was caught while executing a command. */
|
|
extern observable<> command_error;
|
|
|
|
/* The target's register contents have changed. */
|
|
extern observable<struct target_ops */* target */> target_changed;
|
|
|
|
/* The executable being debugged by GDB has changed: The user
|
|
decided to debug a different program, or the program he was
|
|
debugging has been modified since being loaded by the debugger
|
|
(by being recompiled, for instance). */
|
|
extern observable<> executable_changed;
|
|
|
|
/* gdb has just connected to an inferior. For 'run', gdb calls this
|
|
observer while the inferior is still stopped at the entry-point
|
|
instruction. For 'attach' and 'core', gdb calls this observer
|
|
immediately after connecting to the inferior, and before any
|
|
information on the inferior has been printed. */
|
|
extern observable<struct target_ops */* target */,
|
|
int /* from_tty */> inferior_created;
|
|
|
|
/* The status of process record for inferior inferior in gdb has
|
|
changed. The process record is started if STARTED is true, and
|
|
the process record is stopped if STARTED is false.
|
|
|
|
When STARTED is true, METHOD indicates the short name of the
|
|
method used for recording. If the method supports multiple
|
|
formats, FORMAT indicates which one is being used, otherwise it
|
|
is NULL. When STARTED is false, they are both NULL. */
|
|
extern observable<struct inferior */* inferior */, int /* started */,
|
|
const char */* method */, const char */* format */>
|
|
record_changed;
|
|
|
|
/* The shared library specified by SOLIB has been loaded. Note that
|
|
when gdb calls this observer, the library's symbols probably
|
|
haven't been loaded yet. */
|
|
extern observable<struct so_list */* solib */> solib_loaded;
|
|
|
|
/* The shared library specified by SOLIB has been unloaded. Note
|
|
that when gdb calls this observer, the library's symbols have not
|
|
been unloaded yet, and thus are still available. */
|
|
extern observable<struct so_list */* solib */> solib_unloaded;
|
|
|
|
/* The symbol file specified by OBJFILE has been loaded. Called
|
|
with OBJFILE equal to NULL to indicate previously loaded symbol
|
|
table data has now been invalidated. */
|
|
extern observable<struct objfile */* objfile */> new_objfile;
|
|
|
|
/* The object file specified by OBJFILE is about to be freed. */
|
|
extern observable<struct objfile */* objfile */> free_objfile;
|
|
|
|
/* The thread specified by T has been created. */
|
|
extern observable<struct thread_info */* t */> new_thread;
|
|
|
|
/* The thread specified by T has exited. The SILENT argument
|
|
indicates that gdb is removing the thread from its tables without
|
|
wanting to notify the user about it. */
|
|
extern observable<struct thread_info */* t */, int /* silent */> thread_exit;
|
|
|
|
/* An explicit stop request was issued to PTID. If PTID equals
|
|
minus_one_ptid, the request applied to all threads. If
|
|
ptid_is_pid(PTID) returns true, the request applied to all
|
|
threads of the process pointed at by PTID. Otherwise, the
|
|
request applied to the single thread pointed at by PTID. */
|
|
extern observable<ptid_t /* ptid */> thread_stop_requested;
|
|
|
|
/* The target was resumed. The PTID parameter specifies which
|
|
thread was resume, and may be RESUME_ALL if all threads are
|
|
resumed. */
|
|
extern observable<ptid_t /* ptid */> target_resumed;
|
|
|
|
/* The target is about to be proceeded. */
|
|
extern observable<> about_to_proceed;
|
|
|
|
/* A new breakpoint B has been created. */
|
|
extern observable<struct breakpoint */* b */> breakpoint_created;
|
|
|
|
/* A breakpoint has been destroyed. The argument B is the
|
|
pointer to the destroyed breakpoint. */
|
|
extern observable<struct breakpoint */* b */> breakpoint_deleted;
|
|
|
|
/* A breakpoint has been modified in some way. The argument B
|
|
is the modified breakpoint. */
|
|
extern observable<struct breakpoint */* b */> breakpoint_modified;
|
|
|
|
/* The trace frame is changed to TFNUM (e.g., by using the 'tfind'
|
|
command). If TFNUM is negative, it means gdb resumes live
|
|
debugging. The number of the tracepoint associated with this
|
|
traceframe is TPNUM. */
|
|
extern observable<int /* tfnum */, int /* tpnum */> traceframe_changed;
|
|
|
|
/* The current architecture has changed. The argument NEWARCH is a
|
|
pointer to the new architecture. */
|
|
extern observable<struct gdbarch */* newarch */> architecture_changed;
|
|
|
|
/* The thread's ptid has changed. The OLD_PTID parameter specifies
|
|
the old value, and NEW_PTID specifies the new value. */
|
|
extern observable<ptid_t /* old_ptid */, ptid_t /* new_ptid */>
|
|
thread_ptid_changed;
|
|
|
|
/* The inferior INF has been added to the list of inferiors. At
|
|
this point, it might not be associated with any process. */
|
|
extern observable<struct inferior */* inf */> inferior_added;
|
|
|
|
/* The inferior identified by INF has been attached to a
|
|
process. */
|
|
extern observable<struct inferior */* inf */> inferior_appeared;
|
|
|
|
/* Either the inferior associated with INF has been detached from
|
|
the process, or the process has exited. */
|
|
extern observable<struct inferior */* inf */> inferior_exit;
|
|
|
|
/* The inferior INF has been removed from the list of inferiors.
|
|
This method is called immediately before freeing INF. */
|
|
extern observable<struct inferior */* inf */> inferior_removed;
|
|
|
|
/* Bytes from DATA to DATA + LEN have been written to the inferior
|
|
at ADDR. */
|
|
extern observable<struct inferior */* inferior */, CORE_ADDR /* addr */,
|
|
ssize_t /* len */, const bfd_byte */* data */>
|
|
memory_changed;
|
|
|
|
/* Called before a top-level prompt is displayed. CURRENT_PROMPT is
|
|
the current top-level prompt. */
|
|
extern observable<const char */* current_prompt */> before_prompt;
|
|
|
|
/* Variable gdb_datadir has been set. The value may not necessarily
|
|
change. */
|
|
extern observable<> gdb_datadir_changed;
|
|
|
|
/* The parameter of some 'set' commands in console are changed.
|
|
This method is called after a command 'set param value'. PARAM
|
|
is the parameter of 'set' command, and VALUE is the value of
|
|
changed parameter. */
|
|
extern observable<const char */* param */, const char */* value */>
|
|
command_param_changed;
|
|
|
|
/* The new trace state variable TSV is created. */
|
|
extern observable<const struct trace_state_variable */* tsv */> tsv_created;
|
|
|
|
/* The trace state variable TSV is deleted. If TSV is NULL, all
|
|
trace state variables are deleted. */
|
|
extern observable<const struct trace_state_variable */* tsv */> tsv_deleted;
|
|
|
|
/* The trace state value TSV is modified. */
|
|
extern observable<const struct trace_state_variable */* tsv */> tsv_modified;
|
|
|
|
/* An inferior function at ADDRESS is about to be called in thread
|
|
THREAD. */
|
|
extern observable<ptid_t /* thread */, CORE_ADDR /* address */>
|
|
inferior_call_pre;
|
|
|
|
/* The inferior function at ADDRESS has just been called. This
|
|
observer is called even if the inferior exits during the call.
|
|
THREAD is the thread in which the function was called, which may
|
|
be different from the current thread. */
|
|
extern observable<ptid_t /* thread */, CORE_ADDR /* address */>
|
|
inferior_call_post;
|
|
|
|
/* A register in the inferior has been modified by the gdb user. */
|
|
extern observable<struct frame_info */* frame */, int /* regnum */>
|
|
register_changed;
|
|
|
|
/* The user-selected inferior, thread and/or frame has changed. The
|
|
user_select_what flag specifies if the inferior, thread and/or
|
|
frame has changed. */
|
|
extern observable<user_selected_what /* selection */>
|
|
user_selected_context_changed;
|
|
|
|
/* This is notified when the source styling setting has changed and
|
|
should be reconsulted. */
|
|
extern observable<> source_styling_changed;
|
|
|
|
/* The CLI's notion of the current source has changed. This differs
|
|
from user_selected_context_changed in that it is also set by the
|
|
"list" command. */
|
|
|
|
extern observable<> current_source_symtab_and_line_changed;
|
|
|
|
} /* namespace observers */
|
|
|
|
} /* namespace gdb */
|
|
|
|
#endif /* OBSERVABLE_H */
|