/* Multi-process/thread control defs for GDB, the GNU debugger.
Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1997, 1998, 1999,
- 2000, 2007, 2008 Free Software Foundation, Inc.
+ 2000, 2007, 2008, 2009 Free Software Foundation, Inc.
Contributed by Lynx Real-Time Systems, Inc. Los Gatos, CA.
This is how we know when we step into a subroutine call, and how
to set the frame for the breakpoint used to step out. */
struct frame_id step_frame_id;
+
+ /* Similarly, the frame ID of the underlying stack frame (skipping
+ any inlined frames). */
+ struct frame_id step_stack_frame_id;
+
int current_line;
struct symtab *current_symtab;
when we finally do stop stepping. */
bpstat stepping_through_solib_catchpoints;
- /* The below are only per-thread in non-stop mode. */
/* Per-thread command support. */
+
+ /* Pointer to what is left to do for an execution command after the
+ target stops. Used only in asynchronous mode, by targets that
+ support async execution. Several execution commands use it. */
struct continuation *continuations;
+
+ /* Similar to the above, but used when a single execution command
+ requires several resume/stop iterations. Used by the step
+ command. */
struct continuation *intermediate_continuations;
+
+ /* Nonzero if the thread is being proceeded for a "finish" command
+ or a similar situation when stop_registers should be saved. */
int proceed_to_finish;
+
+ /* Nonzero if the thread is being proceeded for an inferior function
+ call. */
+ int in_infcall;
+
enum step_over_calls_kind step_over_calls;
+
+ /* Nonzero if stopped due to a step command. */
int stop_step;
+
+ /* If stepping, nonzero means step count is > 1 so don't print frame
+ next time inferior stops if it stops due to stepping. */
int step_multi;
+ /* This is used to remember when a fork or vfork event was caught by
+ a catchpoint, and thus the event is to be followed at the next
+ resume of the thread, and not immediately. */
+ struct target_waitstatus pending_follow;
+
+ /* Last signal that the inferior received (why it stopped). */
enum target_signal stop_signal;
/* Chain containing status of breakpoint(s) the thread stopped
at. */
bpstat stop_bpstat;
+ /* True if this thread has been explicitly requested to stop. */
+ int stop_requested;
+
/* Private data used by the target vector implementation. */
struct private_thread_info *private;
};
extern int valid_thread_id (int thread);
/* Search function to lookup a thread by 'pid'. */
-extern struct thread_info *find_thread_pid (ptid_t ptid);
+extern struct thread_info *find_thread_ptid (ptid_t ptid);
/* Find thread by GDB user-visible thread number. */
struct thread_info *find_thread_id (int num);
+/* Finds the first thread of the inferior given by PID. If PID is -1,
+ returns the first thread in the list. */
+struct thread_info *first_thread_of_process (int pid);
+
+/* Returns any thread of process PID. */
+extern struct thread_info *any_thread_of_process (int pid);
+
+/* Returns any non-exited thread of process PID, giving preference for
+ already stopped threads. */
+extern struct thread_info *any_live_thread_of_process (int pid);
+
/* Change the ptid of thread OLD_PTID to NEW_PTID. */
void thread_change_ptid (ptid_t old_ptid, ptid_t new_ptid);
extern int thread_count (void);
-/* infrun context switch: save the debugger state for the given thread. */
-extern void save_infrun_state (ptid_t ptid,
- struct continuation *continuations,
- struct continuation *intermediate_continuations,
- int proceed_to_finish,
- int stop_step,
- int step_multi,
- enum target_signal stop_signal);
-
-/* infrun context switch: load the debugger state previously saved
- for the given thread. */
-extern void load_infrun_state (ptid_t ptid,
- struct continuation **continuations,
- struct continuation **intermediate_continuations,
- int *proceed_to_finish,
- int *stop_step,
- int *step_multi,
- enum target_signal *stop_signal);
-
/* Switch from one thread to another. */
extern void switch_to_thread (ptid_t ptid);
If PIDGET (PTID) is -1, marks all threads. */
extern void set_running (ptid_t ptid, int running);
+/* Marks or clears thread(s) PTID as having been requested to stop.
+ If PTID is MINUS_ONE_PTID, applies to all threads. If
+ ptid_is_pid(PTID) is true, applies to all threads of the process
+ pointed at by PTID. If STOP, then the THREAD_STOP_REQUESTED
+ observer is called with PTID as argument. */
+extern void set_stop_requested (ptid_t ptid, int stop);
+
/* NOTE: Since the thread state is not a boolean, most times, you do
not want to check it with negation. If you really want to check if
the thread is stopped,
/* Reports if thread PTID is executing. */
extern int is_executing (ptid_t ptid);
+/* Merge the executing property of thread PTID over to its thread
+ state property (frontend running/stopped view).
+
+ "not executing" -> "stopped"
+ "executing" -> "running"
+ "exited" -> "exited"
+
+ If PIDGET (PTID) is -1, go over all threads.
+
+ Notifications are only emitted if the thread state did change. */
+extern void finish_thread_state (ptid_t ptid);
+
+/* Same as FINISH_THREAD_STATE, but with an interface suitable to be
+ registered as a cleanup. PTID_P points to the ptid_t that is
+ passed to FINISH_THREAD_STATE. */
+extern void finish_thread_state_cleanup (void *ptid_p);
+
/* Commands with a prefix of `thread'. */
extern struct cmd_list_element *thread_cmd_list;
`set print thread-events'. */
extern int print_thread_events;
-extern void print_thread_info (struct ui_out *uiout, int thread);
+extern void print_thread_info (struct ui_out *uiout, int thread,
+ int pid);
extern struct cleanup *make_cleanup_restore_current_thread (void);
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