diff options
Diffstat (limited to 'gdb/thread-db.c')
| -rw-r--r-- | gdb/thread-db.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/gdb/thread-db.c b/gdb/thread-db.c index e357751..3d5f7b4 100644 --- a/gdb/thread-db.c +++ b/gdb/thread-db.c @@ -31,12 +31,16 @@ #include "symfile.h" #include "objfiles.h" #include "target.h" +#include "command.h" +#include "gdbcmd.h" #include "regcache.h" #ifndef LIBTHREAD_DB_SO #define LIBTHREAD_DB_SO "libthread_db.so.1" #endif +int debug_linux_threads = 0; /* Set non-zero for debugging output. */ + /* If we're running on Linux, we must explicitly attach to any new threads. */ /* FIXME: There is certainly some room for improvements: @@ -51,7 +55,7 @@ static struct target_ops thread_db_ops; static struct target_ops *target_beneath; /* Pointer to the next function on the objfile event chain. */ -static void (*target_new_objfile_chain) (struct objfile *objfile); +static void (*new_objfile_event_chain) (struct objfile *objfile); /* Non-zero if we're using this module's target vector. */ static int using_thread_db; @@ -588,8 +592,8 @@ thread_db_new_objfile (struct objfile *objfile) } quit: - if (target_new_objfile_chain) - target_new_objfile_chain (objfile); + if (new_objfile_event_chain) + new_objfile_event_chain (objfile); } static void @@ -697,11 +701,10 @@ check_event (int pid) error ("Thread creation event doesn't match breakpoint."); #endif - /* We may already know about this thread, for instance when the - user has issued the `info threads' command before the SIGTRAP - for hitting the thread creation breakpoint was reported. */ - if (! in_thread_list (pid)) - attach_thread (pid, msg.th_p, &ti, 1); + if (in_thread_list (pid)) + error ("Spurious thread creation event."); + + attach_thread (pid, msg.th_p, &ti, 1); return; case TD_DEATH: @@ -1023,7 +1026,12 @@ _initialize_thread_db (void) add_target (&thread_db_ops); /* Add ourselves to objfile event chain. */ - target_new_objfile_chain = target_new_objfile_hook; + new_objfile_event_chain = target_new_objfile_hook; target_new_objfile_hook = thread_db_new_objfile; } + add_show_from_set (add_set_cmd ("debug-linux-threads", class_support, + var_boolean, (char *) &debug_linux_threads, + "Set debug output for linux-threads \ +on or off.\nUse \"on\" to enable, \"off\" to disable.", &setlist), + &showlist); } |