-/* Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+/* Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
return ESUCCESS;
}
-/* Get integer regs */
+/* Get integer regs. */
static int
get_reg_clbk(void *caller_context, pthreadDebugGetRegRtn_t regs,
return ESUCCESS;
}
-/* Set integer regs */
+/* Set integer regs. */
static int
set_reg_clbk(void *caller_context, const pthreadDebugRegs_t *regs,
debug ("enable_dec_thread: Thread support enabled.");
}
-/* Deactivate thread support. Do nothing is thread support is
+/* Deactivate thread support. Do nothing if thread support is
already inactive. */
static void
return ptid_build (pid, 0, (long) info.thread);
}
+/* Return non-zero if PTID is still alive.
+
+ Assumes that DEC_THREAD_LIST is up to date. */
+static int
+dec_thread_ptid_is_alive (ptid_t ptid)
+{
+ pthreadDebugId_t tid = ptid_get_tid (ptid);
+ int i;
+ struct dec_thread_info *info;
+
+ if (tid == 0)
+ /* This is the thread corresponding to the process. This ptid
+ is always alive until the program exits. */
+ return 1;
+
+ /* Search whether an entry with the same tid exists in the dec-thread
+ list of threads. If it does, then the thread is still alive.
+ No match found means that the thread must be dead, now. */
+ for (i = 0; VEC_iterate (dec_thread_info_s, dec_thread_list, i, info); i++)
+ if (info->thread == tid)
+ return 1;
+ return 0;
+}
+
/* Recompute the list of user threads and store the result in
DEC_THREAD_LIST. */
{
int *count = (int *) context;
- (void) *count++; /* The cast to void is to prevent a -Wunused warning. */
+ *count = *count + 1;
return 0;
}
struct thread_info ***listp = (struct thread_info ***) context;
**listp = info;
- (void) *listp++; /* The cast to void is to prevent a -Wunused warning. */
+ *listp = *listp + 1;
return 0;
}
-/* Resynchronize the list of threads known by GDB with the actual
- list of threads reported by libpthread_debug. */
+/* Implement the find_new_thread target_ops method. */
static void
-resync_thread_list (void)
+dec_thread_find_new_threads (struct target_ops *ops)
{
int i;
struct dec_thread_info *info;
- int num_gdb_threads = 0;
- struct thread_info **gdb_thread_list;
- struct thread_info **next_thread_info;
update_dec_thread_list ();
-
- /* Add new threads. */
-
- for (i = 0; VEC_iterate (dec_thread_info_s, dec_thread_list, i, info);
- i++)
+ for (i = 0; VEC_iterate (dec_thread_info_s, dec_thread_list, i, info); i++)
{
ptid_t ptid = ptid_build_from_info (*info);
if (!in_thread_list (ptid))
add_thread (ptid);
}
+}
+
+/* Resynchronize the list of threads known by GDB with the actual
+ list of threads reported by libpthread_debug. */
+
+static void
+resync_thread_list (struct target_ops *ops)
+{
+ int i;
+ int num_gdb_threads = 0;
+ struct thread_info **gdb_thread_list;
+ struct thread_info **next_thread_info;
+
+ /* Add new threads. */
+ dec_thread_find_new_threads (ops);
/* Remove threads that no longer exist. To help with the search,
we build an array of GDB threads, and then iterate over this
gdb_thread_list = alloca (num_gdb_threads * sizeof (struct thread_info *));
next_thread_info = gdb_thread_list;
iterate_over_threads (dec_thread_add_gdb_thread, (void *) &next_thread_info);
- for (i = 0; i < num_gdb_threads; i++)
- {
- int j;
- for (j = 0; VEC_iterate (dec_thread_info_s, dec_thread_list, j, info);
- j++)
- if (ptid_equal (gdb_thread_list[i]->ptid,
- ptid_build_from_info (*info)))
- break;
+ for (i = 0; i < num_gdb_threads; i++)
+ if (!dec_thread_ptid_is_alive (gdb_thread_list[i]->ptid))
delete_thread (gdb_thread_list[i]->ptid);
- }
}
/* The "to_detach" method of the dec_thread_ops. */
/* The ptid returned by the target beneath us is the ptid of the process.
We need to find which thread is currently active and return its ptid. */
- resync_thread_list ();
+ resync_thread_list (ops);
active_ptid = get_active_ptid ();
if (ptid_equal (active_ptid, null_ptid))
return ptid;
dec_thread_ops.to_store_registers = dec_thread_store_registers;
dec_thread_ops.to_mourn_inferior = dec_thread_mourn_inferior;
dec_thread_ops.to_thread_alive = dec_thread_thread_alive;
+ dec_thread_ops.to_find_new_threads = dec_thread_find_new_threads;
dec_thread_ops.to_pid_to_str = dec_thread_pid_to_str;
dec_thread_ops.to_stratum = thread_stratum;
dec_thread_ops.to_get_ada_task_ptid = dec_thread_get_ada_task_ptid;