From 6aed2dbcba548376cdc0b98231fb9b174f9ca978 Mon Sep 17 00:00:00 2001 From: Stan Shebs Date: Fri, 18 Jun 2010 17:44:40 +0000 Subject: * thread.c (thread_id_make_value): Make a value representing the current thread. (_initialize_thread): Create $_thread. * gdb.texinfo (Debugging Programs with Multiple Threads): Describe $_thread. * gdb.threads/thread-specific.exp: Add tests of $_thread. --- gdb/thread.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'gdb/thread.c') diff --git a/gdb/thread.c b/gdb/thread.c index c10d23c..2fdc7f9 100644 --- a/gdb/thread.c +++ b/gdb/thread.c @@ -1262,6 +1262,18 @@ update_thread_list (void) target_find_new_threads (); } +/* Return a new value for the selected thread's id. Return a value of 0 if + no thread is selected, or no threads exist. */ + +static struct value * +thread_id_make_value (struct gdbarch *gdbarch, struct internalvar *var) +{ + struct thread_info *tp = find_thread_ptid (inferior_ptid); + + return value_from_longest (builtin_type (gdbarch)->builtin_int, + (tp ? tp->num : 0)); +} + /* Commands with a prefix of `thread'. */ struct cmd_list_element *thread_cmd_list = NULL; @@ -1295,4 +1307,6 @@ Show printing of thread events (such as thread start and exit)."), NULL, NULL, show_print_thread_events, &setprintlist, &showprintlist); + + create_internalvar_type_lazy ("_thread", thread_id_make_value); } -- cgit v1.1