toolchain/gdb: remove ancient deprecated versions

They shouldn't be used anymore, needs havily patching (6.3 has more than
200k patches) and no one tests them with current toolchains.

1 files changed, 0 insertions, 593 deletions

diff --git a/toolchain/gdb/6.3/710-debian_thread-db-multiple-libraries.patch b/toolchain/gdb/6.3/710-debian_thread-db-multiple-libraries.patch
deleted file mode 100644
index c164bd11a..000000000
--- a/toolchain/gdb/6.3/710-debian_thread-db-multiple-libraries.patch
+++ /dev/null
@@ -1,593 +0,0 @@
-Support loading two libthread_db DSOs.  In this case, the LinuxThreads
-and NPTL ones.
-
-Index: gdb-6.3/gdb/thread-db.c
-===================================================================
---- gdb-6.3.orig/gdb/thread-db.c	2004-11-10 10:46:24.000000000 -0500
-+++ gdb-6.3/gdb/thread-db.c	2004-11-10 11:22:34.858812426 -0500
-@@ -79,53 +79,63 @@ static td_thragent_t *thread_agent;
- 
- /* Pointers to the libthread_db functions.  */
- 
--static td_err_e (*td_init_p) (void);
-+struct thread_db_pointers
-+{
-+  const char *filename;
-+
-+  td_err_e (*td_init_p) (void);
- 
--static td_err_e (*td_ta_new_p) (struct ps_prochandle * ps,
--				td_thragent_t **ta);
--static td_err_e (*td_ta_map_id2thr_p) (const td_thragent_t *ta, thread_t pt,
--				       td_thrhandle_t *__th);
--static td_err_e (*td_ta_map_lwp2thr_p) (const td_thragent_t *ta,
--					lwpid_t lwpid, td_thrhandle_t *th);
--static td_err_e (*td_ta_thr_iter_p) (const td_thragent_t *ta,
--				     td_thr_iter_f *callback, void *cbdata_p,
--				     td_thr_state_e state, int ti_pri,
--				     sigset_t *ti_sigmask_p,
--				     unsigned int ti_user_flags);
--static td_err_e (*td_ta_event_addr_p) (const td_thragent_t *ta,
--				       td_event_e event, td_notify_t *ptr);
--static td_err_e (*td_ta_set_event_p) (const td_thragent_t *ta,
--				      td_thr_events_t *event);
--static td_err_e (*td_ta_event_getmsg_p) (const td_thragent_t *ta,
--					 td_event_msg_t *msg);
--
--static td_err_e (*td_thr_validate_p) (const td_thrhandle_t *th);
--static td_err_e (*td_thr_get_info_p) (const td_thrhandle_t *th,
--				      td_thrinfo_t *infop);
--static td_err_e (*td_thr_getfpregs_p) (const td_thrhandle_t *th,
--				       gdb_prfpregset_t *regset);
--static td_err_e (*td_thr_getgregs_p) (const td_thrhandle_t *th,
--				      prgregset_t gregs);
--static td_err_e (*td_thr_setfpregs_p) (const td_thrhandle_t *th,
--				       const gdb_prfpregset_t *fpregs);
--static td_err_e (*td_thr_setgregs_p) (const td_thrhandle_t *th,
--				      prgregset_t gregs);
--static td_err_e (*td_thr_event_enable_p) (const td_thrhandle_t *th,
--					  int event);
--
--static td_err_e (*td_thr_tls_get_addr_p) (const td_thrhandle_t *th,
--					  void *map_address,
--					  size_t offset, void **address);
-+  td_err_e (*td_ta_new_p) (struct ps_prochandle * ps,
-+			   td_thragent_t **ta);
-+  td_err_e (*td_ta_map_id2thr_p) (const td_thragent_t *ta, thread_t pt,
-+				  td_thrhandle_t *__th);
-+  td_err_e (*td_ta_map_lwp2thr_p) (const td_thragent_t *ta,
-+				   lwpid_t lwpid, td_thrhandle_t *th);
-+
-+  td_err_e (*td_ta_thr_iter_p) (const td_thragent_t *ta,
-+				td_thr_iter_f *callback, void *cbdata_p,
-+				td_thr_state_e state, int ti_pri,
-+				sigset_t *ti_sigmask_p,
-+				unsigned int ti_user_flags);
-+  td_err_e (*td_ta_event_addr_p) (const td_thragent_t *ta,
-+				  td_event_e event, td_notify_t *ptr);
-+  td_err_e (*td_ta_set_event_p) (const td_thragent_t *ta,
-+				 td_thr_events_t *event);
-+  td_err_e (*td_ta_event_getmsg_p) (const td_thragent_t *ta,
-+				    td_event_msg_t *msg);
-+
-+  td_err_e (*td_thr_validate_p) (const td_thrhandle_t *th);
-+  td_err_e (*td_thr_get_info_p) (const td_thrhandle_t *th,
-+				 td_thrinfo_t *infop);
-+  td_err_e (*td_thr_getfpregs_p) (const td_thrhandle_t *th,
-+				  gdb_prfpregset_t *regset);
-+  td_err_e (*td_thr_getgregs_p) (const td_thrhandle_t *th,
-+				 prgregset_t gregs);
-+  td_err_e (*td_thr_setfpregs_p) (const td_thrhandle_t *th,
-+				  const gdb_prfpregset_t *fpregs);
-+  td_err_e (*td_thr_setgregs_p) (const td_thrhandle_t *th,
-+				 prgregset_t gregs);
-+  td_err_e (*td_thr_event_enable_p) (const td_thrhandle_t *th,
-+				     int event);
-+
-+  td_err_e (*td_thr_tls_get_addr_p) (const td_thrhandle_t *th,
-+				     void *map_address,
-+				     size_t offset, void **address);
-+
-+  struct thread_db_pointers *next;
-+};
- 
- /* Location of the thread creation event breakpoint.  The code at this
-    location in the child process will be called by the pthread library
-    whenever a new thread is created.  By setting a special breakpoint
-    at this location, GDB can detect when a new thread is created.  We
-    obtain this location via the td_ta_event_addr call.  */
--static CORE_ADDR td_create_bp_addr;
-+CORE_ADDR td_create_bp_addr;
- 
- /* Location of the thread death event breakpoint.  */
--static CORE_ADDR td_death_bp_addr;
-+CORE_ADDR td_death_bp_addr;
-+
-+static struct thread_db_pointers *current_pointers, *all_pointers;
- 
- /* Prototypes for local functions.  */
- static void thread_db_find_new_threads (void);
-@@ -262,7 +272,7 @@ thread_get_info_callback (const td_thrha
-   struct thread_info *thread_info;
-   ptid_t thread_ptid;
- 
--  err = td_thr_get_info_p (thp, &ti);
-+  err = current_pointers->td_thr_get_info_p (thp, &ti);
-   if (err != TD_OK)
-     error ("thread_get_info_callback: cannot get thread info: %s",
- 	   thread_db_err_str (err));
-@@ -316,8 +326,9 @@ thread_db_map_id2thr (struct thread_info
-   if (thread_info->private->th_valid)
-     return;
- 
--  err = td_ta_map_id2thr_p (thread_agent, GET_THREAD (thread_info->ptid),
--			    &thread_info->private->th);
-+  err = current_pointers->td_ta_map_id2thr_p (thread_agent,
-+					      GET_THREAD (thread_info->ptid),
-+					      &thread_info->private->th);
-   if (err != TD_OK)
-     {
-       if (fatal)
-@@ -340,8 +351,8 @@ thread_db_get_info (struct thread_info *
-   if (!thread_info->private->th_valid)
-     thread_db_map_id2thr (thread_info, 1);
- 
--  err =
--    td_thr_get_info_p (&thread_info->private->th, &thread_info->private->ti);
-+  err = current_pointers->td_thr_get_info_p (&thread_info->private->th,
-+					     &thread_info->private->ti);
-   if (err != TD_OK)
-     error ("thread_db_get_info: cannot get thread info: %s",
- 	   thread_db_err_str (err));
-@@ -365,7 +376,8 @@ thread_from_lwp (ptid_t ptid)
- 
-   gdb_assert (is_lwp (ptid));
- 
--  err = td_ta_map_lwp2thr_p (thread_agent, GET_LWP (ptid), &th);
-+  err = current_pointers->td_ta_map_lwp2thr_p (thread_agent, GET_LWP (ptid),
-+					       &th);
-   if (err != TD_OK)
-     error ("Cannot find user-level thread for LWP %ld: %s",
- 	   GET_LWP (ptid), thread_db_err_str (err));
-@@ -420,85 +432,102 @@ verbose_dlsym (void *handle, const char 
-   return sym;
- }
- 
--static int
--thread_db_load (void)
-+static struct thread_db_pointers *
-+thread_db_load (const char *name)
- {
-+  struct thread_db_pointers *ptrs;
-+  Dl_info info;
-   void *handle;
-   td_err_e err;
- 
--  handle = dlopen (LIBTHREAD_DB_SO, RTLD_NOW);
-+  ptrs = xcalloc (1, sizeof (struct thread_db_pointers));
-+
-+  handle = dlopen (name, RTLD_NOW);
-   if (handle == NULL)
-     {
--      fprintf_filtered (gdb_stderr, "\n\ndlopen failed on '%s' - %s\n",
--			LIBTHREAD_DB_SO, dlerror ());
--      fprintf_filtered (gdb_stderr,
--			"GDB will not be able to debug pthreads.\n\n");
-+      if (all_pointers == NULL)
-+	{
-+	  fprintf_filtered (gdb_stderr, "\n\ndlopen failed on '%s' - %s\n",
-+			    name, dlerror ());
-+	  fprintf_filtered (gdb_stderr,
-+			    "GDB will not be able to debug pthreads.\n\n");
-+	}
-       return 0;
-     }
- 
-   /* Initialize pointers to the dynamic library functions we will use.
-      Essential functions first.  */
- 
--  td_init_p = verbose_dlsym (handle, "td_init");
--  if (td_init_p == NULL)
-+  ptrs->td_init_p = verbose_dlsym (handle, "td_init");
-+  if (ptrs->td_init_p == NULL)
-     return 0;
- 
--  td_ta_new_p = verbose_dlsym (handle, "td_ta_new");
--  if (td_ta_new_p == NULL)
-+  ptrs->td_ta_new_p = verbose_dlsym (handle, "td_ta_new");
-+  if (ptrs->td_ta_new_p == NULL)
-     return 0;
- 
--  td_ta_map_id2thr_p = verbose_dlsym (handle, "td_ta_map_id2thr");
--  if (td_ta_map_id2thr_p == NULL)
-+  ptrs->td_ta_map_id2thr_p = verbose_dlsym (handle, "td_ta_map_id2thr");
-+  if (ptrs->td_ta_map_id2thr_p == NULL)
-     return 0;
- 
--  td_ta_map_lwp2thr_p = verbose_dlsym (handle, "td_ta_map_lwp2thr");
--  if (td_ta_map_lwp2thr_p == NULL)
-+  ptrs->td_ta_map_lwp2thr_p = verbose_dlsym (handle, "td_ta_map_lwp2thr");
-+  if (ptrs->td_ta_map_lwp2thr_p == NULL)
-     return 0;
- 
--  td_ta_thr_iter_p = verbose_dlsym (handle, "td_ta_thr_iter");
--  if (td_ta_thr_iter_p == NULL)
-+  ptrs->td_ta_thr_iter_p = verbose_dlsym (handle, "td_ta_thr_iter");
-+  if (ptrs->td_ta_thr_iter_p == NULL)
-     return 0;
- 
--  td_thr_validate_p = verbose_dlsym (handle, "td_thr_validate");
--  if (td_thr_validate_p == NULL)
-+  ptrs->td_thr_validate_p = verbose_dlsym (handle, "td_thr_validate");
-+  if (ptrs->td_thr_validate_p == NULL)
-     return 0;
- 
--  td_thr_get_info_p = verbose_dlsym (handle, "td_thr_get_info");
--  if (td_thr_get_info_p == NULL)
-+  ptrs->td_thr_get_info_p = verbose_dlsym (handle, "td_thr_get_info");
-+  if (ptrs->td_thr_get_info_p == NULL)
-     return 0;
- 
--  td_thr_getfpregs_p = verbose_dlsym (handle, "td_thr_getfpregs");
--  if (td_thr_getfpregs_p == NULL)
-+  ptrs->td_thr_getfpregs_p = verbose_dlsym (handle, "td_thr_getfpregs");
-+  if (ptrs->td_thr_getfpregs_p == NULL)
-     return 0;
- 
--  td_thr_getgregs_p = verbose_dlsym (handle, "td_thr_getgregs");
--  if (td_thr_getgregs_p == NULL)
-+  ptrs->td_thr_getgregs_p = verbose_dlsym (handle, "td_thr_getgregs");
-+  if (ptrs->td_thr_getgregs_p == NULL)
-     return 0;
- 
--  td_thr_setfpregs_p = verbose_dlsym (handle, "td_thr_setfpregs");
--  if (td_thr_setfpregs_p == NULL)
-+  ptrs->td_thr_setfpregs_p = verbose_dlsym (handle, "td_thr_setfpregs");
-+  if (ptrs->td_thr_setfpregs_p == NULL)
-     return 0;
- 
--  td_thr_setgregs_p = verbose_dlsym (handle, "td_thr_setgregs");
--  if (td_thr_setgregs_p == NULL)
-+  ptrs->td_thr_setgregs_p = verbose_dlsym (handle, "td_thr_setgregs");
-+  if (ptrs->td_thr_setgregs_p == NULL)
-     return 0;
- 
-   /* Initialize the library.  */
--  err = td_init_p ();
-+  err = ptrs->td_init_p ();
-   if (err != TD_OK)
-     {
-       warning ("Cannot initialize libthread_db: %s", thread_db_err_str (err));
-+      xfree (ptrs);
-       return 0;
-     }
- 
-   /* These are not essential.  */
--  td_ta_event_addr_p = dlsym (handle, "td_ta_event_addr");
--  td_ta_set_event_p = dlsym (handle, "td_ta_set_event");
--  td_ta_event_getmsg_p = dlsym (handle, "td_ta_event_getmsg");
--  td_thr_event_enable_p = dlsym (handle, "td_thr_event_enable");
--  td_thr_tls_get_addr_p = dlsym (handle, "td_thr_tls_get_addr");
-+  ptrs->td_ta_event_addr_p = dlsym (handle, "td_ta_event_addr");
-+  ptrs->td_ta_set_event_p = dlsym (handle, "td_ta_set_event");
-+  ptrs->td_ta_event_getmsg_p = dlsym (handle, "td_ta_event_getmsg");
-+  ptrs->td_thr_event_enable_p = dlsym (handle, "td_thr_event_enable");
-+  ptrs->td_thr_tls_get_addr_p = dlsym (handle, "td_thr_tls_get_addr");
-+
-+  if (dladdr (ptrs->td_ta_new_p, &info) != 0)
-+    ptrs->filename = info.dli_fname;
-+
-+  /* Try dlinfo?  */
-+
-+  if (ptrs->filename == NULL)
-+    /* Paranoid - don't let a NULL path slip through.  */
-+    ptrs->filename = name;
- 
--  return 1;
-+  return ptrs;
- }
- 
- static td_err_e
-@@ -508,7 +537,7 @@ enable_thread_event (td_thragent_t *thre
-   td_err_e err;
- 
-   /* Get the breakpoint address for thread EVENT.  */
--  err = td_ta_event_addr_p (thread_agent, event, &notify);
-+  err = current_pointers->td_ta_event_addr_p (thread_agent, event, &notify);
-   if (err != TD_OK)
-     return err;
- 
-@@ -534,8 +563,10 @@ enable_thread_event_reporting (void)
- 
-   /* We cannot use the thread event reporting facility if these
-      functions aren't available.  */
--  if (td_ta_event_addr_p == NULL || td_ta_set_event_p == NULL
--      || td_ta_event_getmsg_p == NULL || td_thr_event_enable_p == NULL)
-+  if (current_pointers->td_ta_event_addr_p == NULL
-+      || current_pointers->td_ta_set_event_p == NULL
-+      || current_pointers->td_ta_event_getmsg_p == NULL
-+      || current_pointers->td_thr_event_enable_p == NULL)
-     return;
- 
-   /* Set the process wide mask saying which events we're interested in.  */
-@@ -552,7 +583,7 @@ enable_thread_event_reporting (void)
- #endif
-     td_event_addset (&events, TD_DEATH);
- 
--  err = td_ta_set_event_p (thread_agent, &events);
-+  err = current_pointers->td_ta_set_event_p (thread_agent, &events);
-   if (err != TD_OK)
-     {
-       warning ("Unable to set global thread event mask: %s",
-@@ -592,7 +623,7 @@ disable_thread_event_reporting (void)
-   /* Set the process wide mask saying we aren't interested in any
-      events anymore.  */
-   td_event_emptyset (&events);
--  td_ta_set_event_p (thread_agent, &events);
-+  current_pointers->td_ta_set_event_p (thread_agent, &events);
- 
-   /* Delete thread event breakpoints, if any.  */
-   remove_thread_event_breakpoints ();
-@@ -635,7 +666,6 @@ check_thread_signals (void)
- static void
- check_for_thread_db (void)
- {
--  td_err_e err;
-   static int already_loaded;
- 
-   /* First time through, report that libthread_db was successfuly
-@@ -644,19 +674,8 @@ check_for_thread_db (void)
- 
-   if (!already_loaded)
-     {
--      Dl_info info;
--      const char *library = NULL;
--      if (dladdr ((*td_ta_new_p), &info) != 0)
--	library = info.dli_fname;
--
--      /* Try dlinfo?  */
--
--      if (library == NULL)
--	/* Paranoid - don't let a NULL path slip through.  */
--	library = LIBTHREAD_DB_SO;
--
-       printf_unfiltered ("Using host libthread_db library \"%s\".\n",
--			 library);
-+			 all_pointers->filename);
-       already_loaded = 1;
-     }
- 
-@@ -674,28 +693,34 @@ check_for_thread_db (void)
-   proc_handle.pid = GET_PID (inferior_ptid);
- 
-   /* Now attempt to open a connection to the thread library.  */
--  err = td_ta_new_p (&proc_handle, &thread_agent);
--  switch (err)
-+  for (current_pointers = all_pointers;
-+       current_pointers != NULL;
-+       current_pointers = current_pointers->next)
-     {
--    case TD_NOLIBTHREAD:
--      /* No thread library was detected.  */
--      break;
--
--    case TD_OK:
--      printf_unfiltered ("[Thread debugging using libthread_db enabled]\n");
-+      td_err_e err;
-+      err = current_pointers->td_ta_new_p (&proc_handle, &thread_agent);
-+      switch (err)
-+	{
-+	case TD_NOLIBTHREAD:
-+	  /* No thread library was detected.  */
-+	  break;
- 
--      /* The thread library was detected.  Activate the thread_db target.  */
--      push_target (&thread_db_ops);
--      using_thread_db = 1;
-+	case TD_OK:
-+	  printf_unfiltered ("[Thread debugging using libthread_db enabled]\n");
- 
--      enable_thread_event_reporting ();
--      thread_db_find_new_threads ();
--      break;
-+	  /* The thread library was detected.  Activate the thread_db target.  */
-+	  push_target (&thread_db_ops);
-+	  using_thread_db = 1;
-+
-+	  enable_thread_event_reporting ();
-+	  thread_db_find_new_threads ();
-+	  return;
- 
--    default:
--      warning ("Cannot initialize thread debugging library: %s",
--	       thread_db_err_str (err));
--      break;
-+	default:
-+	  warning ("Cannot initialize thread debugging library: %s",
-+		   thread_db_err_str (err));
-+	  break;
-+	}
-     }
- }
- 
-@@ -766,7 +791,7 @@ attach_thread (ptid_t ptid, const td_thr
- #endif
- 
-   /* Enable thread event reporting for this thread.  */
--  err = td_thr_event_enable_p (th_p, 1);
-+  err = current_pointers->td_thr_event_enable_p (th_p, 1);
-   if (err != TD_OK)
-     error ("Cannot enable thread event reporting for %s: %s",
- 	   target_pid_to_str (ptid), thread_db_err_str (err));
-@@ -892,7 +917,7 @@ check_event (ptid_t ptid)
- 
-   do
-     {
--      err = td_ta_event_getmsg_p (thread_agent, &msg);
-+      err = current_pointers->td_ta_event_getmsg_p (thread_agent, &msg);
-       if (err != TD_OK)
- 	{
- 	  if (err == TD_NOMSG)
-@@ -902,7 +927,7 @@ check_event (ptid_t ptid)
- 		 thread_db_err_str (err));
- 	}
- 
--      err = td_thr_get_info_p (msg.th_p, &ti);
-+      err = current_pointers->td_thr_get_info_p (msg.th_p, &ti);
-       if (err != TD_OK)
- 	error ("Cannot get thread info: %s", thread_db_err_str (err));
- 
-@@ -1015,12 +1040,14 @@ thread_db_fetch_registers (int regno)
-   thread_info = find_thread_pid (inferior_ptid);
-   thread_db_map_id2thr (thread_info, 1);
- 
--  err = td_thr_getgregs_p (&thread_info->private->th, gregset);
-+  err = current_pointers->td_thr_getgregs_p (&thread_info->private->th,
-+					     gregset);
-   if (err != TD_OK)
-     error ("Cannot fetch general-purpose registers for thread %ld: %s",
- 	   (long) GET_THREAD (inferior_ptid), thread_db_err_str (err));
- 
--  err = td_thr_getfpregs_p (&thread_info->private->th, &fpregset);
-+  err = current_pointers->td_thr_getfpregs_p (&thread_info->private->th,
-+					      &fpregset);
-   if (err != TD_OK)
-     error ("Cannot get floating-point registers for thread %ld: %s",
- 	   (long) GET_THREAD (inferior_ptid), thread_db_err_str (err));
-@@ -1062,11 +1089,13 @@ thread_db_store_registers (int regno)
-   fill_gregset ((gdb_gregset_t *) gregset, -1);
-   fill_fpregset (&fpregset, -1);
- 
--  err = td_thr_setgregs_p (&thread_info->private->th, gregset);
-+  err = current_pointers->td_thr_setgregs_p (&thread_info->private->th,
-+					     gregset);
-   if (err != TD_OK)
-     error ("Cannot store general-purpose registers for thread %ld: %s",
- 	   (long) GET_THREAD (inferior_ptid), thread_db_err_str (err));
--  err = td_thr_setfpregs_p (&thread_info->private->th, &fpregset);
-+  err = current_pointers->td_thr_setfpregs_p (&thread_info->private->th,
-+					      &fpregset);
-   if (err != TD_OK)
-     error ("Cannot store floating-point registers  for thread %ld: %s",
- 	   (long) GET_THREAD (inferior_ptid), thread_db_err_str (err));
-@@ -1136,15 +1165,14 @@ thread_db_thread_alive (ptid_t ptid)
-       if (!thread_info->private->th_valid)
- 	return 0;
- 
--      err = td_thr_validate_p (&thread_info->private->th);
-+      err = current_pointers->td_thr_validate_p (&thread_info->private->th);
-       if (err != TD_OK)
- 	return 0;
- 
-       if (!thread_info->private->ti_valid)
- 	{
--	  err =
--	    td_thr_get_info_p (&thread_info->private->th,
--			       &thread_info->private->ti);
-+	  err = current_pointers->td_thr_get_info_p
-+	    (&thread_info->private->th, &thread_info->private->ti);
- 	  if (err != TD_OK)
- 	    return 0;
- 	  thread_info->private->ti_valid = 1;
-@@ -1170,7 +1198,7 @@ find_new_threads_callback (const td_thrh
-   td_err_e err;
-   ptid_t ptid;
- 
--  err = td_thr_get_info_p (th_p, &ti);
-+  err = current_pointers->td_thr_get_info_p (th_p, &ti);
-   if (err != TD_OK)
-     error ("find_new_threads_callback: cannot get thread info: %s",
- 	   thread_db_err_str (err));
-@@ -1192,9 +1220,10 @@ thread_db_find_new_threads (void)
-   td_err_e err;
- 
-   /* Iterate over all user-space threads to discover new threads.  */
--  err = td_ta_thr_iter_p (thread_agent, find_new_threads_callback, NULL,
--			  TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
--			  TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
-+  err = current_pointers->td_ta_thr_iter_p
-+    (thread_agent, find_new_threads_callback, NULL,
-+     TD_THR_ANY_STATE, TD_THR_LOWEST_PRIORITY,
-+     TD_SIGNO_MASK, TD_THR_ANY_USER_FLAGS);
-   if (err != TD_OK)
-     error ("Cannot find new threads: %s", thread_db_err_str (err));
- }
-@@ -1257,7 +1286,7 @@ thread_db_get_thread_local_address (ptid
-       struct thread_info *thread_info;
- 
-       /* glibc doesn't provide the needed interface.  */
--      if (!td_thr_tls_get_addr_p)
-+      if (!current_pointers->td_thr_tls_get_addr_p)
- 	error ("Cannot find thread-local variables in this thread library.");
- 
-       /* Get the address of the link map for this objfile.  */
-@@ -1279,8 +1308,8 @@ thread_db_get_thread_local_address (ptid
-       thread_db_map_id2thr (thread_info, 1);
- 
-       /* Finally, get the address of the variable.  */
--      err = td_thr_tls_get_addr_p (&thread_info->private->th, (void *) lm,
--				   offset, &address);
-+      err = current_pointers->td_thr_tls_get_addr_p
-+	(&thread_info->private->th, (void *) lm, offset, &address);
- 
- #ifdef THREAD_DB_HAS_TD_NOTALLOC
-       /* The memory hasn't been allocated, yet.  */
-@@ -1360,17 +1389,49 @@ init_thread_db_ops (void)
- void
- _initialize_thread_db (void)
- {
-+  struct thread_db_pointers *ptrs;
-+  const char *p;
-+
-   /* Only initialize the module if we can load libthread_db.  */
--  if (thread_db_load ())
--    {
--      init_thread_db_ops ();
--      add_target (&thread_db_ops);
-+  ptrs = thread_db_load (LIBTHREAD_DB_SO);
-+  if (ptrs == NULL)
-+    return;
-+
-+  all_pointers = ptrs;
- 
--      /* Add ourselves to objfile event chain.  */
--      target_new_objfile_chain = deprecated_target_new_objfile_hook;
--      deprecated_target_new_objfile_hook = thread_db_new_objfile;
-+  /* Some GNU/Linux systems have more than one binary-compatible copy
-+     of libthread_db.  If we can find a second one, load that too.
-+     The inferior may force the use of a different threading package
-+     than we expect.  Our guess for the location is somewhat hokey:
-+     strip out anything between /lib (or /lib64) and LIBTHREAD_DB_SO.
-+     If we loaded the NPTL libthread_db by default, this may find us
-+     the LinuxThreads copy.  */
-+  p = strrchr (ptrs->filename, '/');
-+  while (p != NULL && p > ptrs->filename)
-+    {
-+      const char *component;
- 
--      /* Register ourselves for the new inferior observer.  */
--      observer_attach_inferior_created (check_for_thread_db_observer);
-+      component = memrchr (ptrs->filename, '/', p - ptrs->filename);
-+      if (component != NULL && strncmp (component, "/lib", 4) == 0)
-+	{
-+	  char *new_name = xmalloc (p - ptrs->filename + 2
-+				    + strlen (LIBTHREAD_DB_SO));
-+	  memcpy (new_name, ptrs->filename, p - ptrs->filename + 1);
-+	  strcpy (new_name + (p - ptrs->filename) + 1, LIBTHREAD_DB_SO);
-+	  ptrs->next = thread_db_load (new_name);
-+	  xfree (new_name);
-+	  break;
-+	}
-+      p = component;
-     }
-+
-+  init_thread_db_ops ();
-+  add_target (&thread_db_ops);
-+
-+  /* Add ourselves to objfile event chain.  */
-+  target_new_objfile_chain = deprecated_target_new_objfile_hook;
-+  deprecated_target_new_objfile_hook = thread_db_new_objfile;
-+
-+  /* Register ourselves for the new inferior observer.  */
-+  observer_attach_inferior_created (check_for_thread_db_observer);
- }