Implement core awareness.

	* bcache.c (compare_ints): Remove
	(print_percentage): Use compare_positive_ints.
	* defs.h (compare_positive_ints): Declare.
	* linux-nat.h (struct lin_lwp): New field core.
	(linux_nat_core_of_thread_1): Declare.
	* linux-nat.c (add_lwp): Init the 'core' field.
	(linux_nat_wait_1): Record the core.
	(linux_nat_core_of_thread_1, linux_nat_core_of_thread): New.
	(linux_nat_add_target): Register the above.
	* linux-thread-db.c (update_thread_core): New.
	(thread_db_find_new_threads): Update core information for
	every thread.
	* remote.c (struct private_thread_info): New.
	(free_private_thread_info, demand_private_info): New.
	(PACKET_qXfer_threads, use_osdata_threads): New.
	(struct thread_item, threads_parsing_context
	(start_thread, end_thread, thread_attributes)
	(thread_children, threads_children, threads_elements): New.
	(remote_threads_info): Try qXfer:threads before anything
	else.
	(remote_protocol_packets): Register qXfer:threads.
	(remote_open_1): Init use_osdata_threads.
	(struct stop_reply): New field 'core'.
	(remote_parse_stop_reply): Parse core number.
	(process_stop_reply): Record core number.
	(remote_xfer_partial): Handle qXfer:threads.
	(remote_core_of_thread): New.
	(init_remote_ops): Register remote_core_of_thread.
	(_initialize_remote): Register qXfer:read.
	* target.c (target_core_of_thread): New
	* target.h (enum target_object): New value TARGET_OBJECT_THREADS.
	(struct target_ops): New field to_core_of_threads.
	(target_core_of_thread): Declare.
	* gdbthread.h (struct thread_info): New field private_dtor.
	* thread.c (print_thread_info): Report the core.
	* ui-out.c (MAX_UI_OUT_LEVELS): Increase.
	* utils.c (compare_positive_ints): New.
	* features/threads.dtd: New.
	* mi/mi-interp.c (mi_on_normal_stop): Report the core.
	* mi/mi-main.c (struct collect_cores_data, collect_cores)
	(do_nothing, free_vector_of_osdata_items)
	(splay_tree_int_comparator, free_splay_tree): New.
	(print_one_inferior_data): Implemented printing of selected
	inferiors.  Collect and print cores.
	(output_cores): New.
	(mi_cmd_list_thread_groups): Support --recurse.  Permit specifying
	thread groups together with --available.

1 files changed, 13 insertions, 0 deletions

diff --git a/gdb/target.h b/gdb/target.h
index 20cbe29..a020bf7 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -256,6 +256,8 @@ enum target_object
   /* Extra signal info.  Usually the contents of `siginfo_t' on unix
      platforms.  */
   TARGET_OBJECT_SIGNAL_INFO,
+  /* The list of threads that are being debugged.  */
+  TARGET_OBJECT_THREADS,
   /* Possible future objects: TARGET_OBJECT_FILE, ... */
 };
 
@@ -651,6 +653,14 @@ struct target_ops
        disconnection - set VAL to 1 to keep tracing, 0 to stop.  */
     void (*to_set_disconnected_tracing) (int val);
 
+    /* Return the processor core that thread PTID was last seen on.
+       This information is updated only when:
+       - update_thread_list is called
+       - thread stops
+       If the core cannot be determined -- either for the specified thread, or
+       right now, or in this debug session, or for this target -- return -1.  */
+    int (*to_core_of_thread) (struct target_ops *, ptid_t ptid);
+
     int to_magic;
     /* Need sub-structure for target machine related rather than comm related?
      */
@@ -1332,6 +1342,9 @@ extern int target_search_memory (CORE_ADDR start_addr,
       (*current_target.to_log_command) (p);				\
   while (0)
 
+
+extern int target_core_of_thread (ptid_t ptid);
+
 /* Routines for maintenance of the target structures...
 
    add_target:   Add a target to the list of all possible targets.