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@@ -0,0 +1,593 @@
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+Support loading two libthread_db DSOs. In this case, the LinuxThreads
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+and NPTL ones.
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+
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+Index: gdb-6.3/gdb/thread-db.c
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+===================================================================
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+--- gdb-6.3.orig/gdb/thread-db.c 2004-11-10 10:46:24.000000000 -0500
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++++ gdb-6.3/gdb/thread-db.c 2004-11-10 11:22:34.858812426 -0500
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+@@ -79,53 +79,63 @@ static td_thragent_t *thread_agent;
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+
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+ /* Pointers to the libthread_db functions. */
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+
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+-static td_err_e (*td_init_p) (void);
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++struct thread_db_pointers
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++{
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++ const char *filename;
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++
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++ td_err_e (*td_init_p) (void);
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+
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+-static td_err_e (*td_ta_new_p) (struct ps_prochandle * ps,
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+- td_thragent_t **ta);
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+-static td_err_e (*td_ta_map_id2thr_p) (const td_thragent_t *ta, thread_t pt,
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+- td_thrhandle_t *__th);
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+-static td_err_e (*td_ta_map_lwp2thr_p) (const td_thragent_t *ta,
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+- lwpid_t lwpid, td_thrhandle_t *th);
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+-static td_err_e (*td_ta_thr_iter_p) (const td_thragent_t *ta,
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+- td_thr_iter_f *callback, void *cbdata_p,
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+- td_thr_state_e state, int ti_pri,
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+- sigset_t *ti_sigmask_p,
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+- unsigned int ti_user_flags);
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+-static td_err_e (*td_ta_event_addr_p) (const td_thragent_t *ta,
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+- td_event_e event, td_notify_t *ptr);
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+-static td_err_e (*td_ta_set_event_p) (const td_thragent_t *ta,
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+- td_thr_events_t *event);
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+-static td_err_e (*td_ta_event_getmsg_p) (const td_thragent_t *ta,
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+- td_event_msg_t *msg);
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+-
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+-static td_err_e (*td_thr_validate_p) (const td_thrhandle_t *th);
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+-static td_err_e (*td_thr_get_info_p) (const td_thrhandle_t *th,
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+- td_thrinfo_t *infop);
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+-static td_err_e (*td_thr_getfpregs_p) (const td_thrhandle_t *th,
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+- gdb_prfpregset_t *regset);
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+-static td_err_e (*td_thr_getgregs_p) (const td_thrhandle_t *th,
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+- prgregset_t gregs);
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+-static td_err_e (*td_thr_setfpregs_p) (const td_thrhandle_t *th,
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+- const gdb_prfpregset_t *fpregs);
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+-static td_err_e (*td_thr_setgregs_p) (const td_thrhandle_t *th,
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+- prgregset_t gregs);
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+-static td_err_e (*td_thr_event_enable_p) (const td_thrhandle_t *th,
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+- int event);
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+-
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+-static td_err_e (*td_thr_tls_get_addr_p) (const td_thrhandle_t *th,
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+- void *map_address,
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+- size_t offset, void **address);
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++ td_err_e (*td_ta_new_p) (struct ps_prochandle * ps,
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++ td_thragent_t **ta);
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++ td_err_e (*td_ta_map_id2thr_p) (const td_thragent_t *ta, thread_t pt,
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++ td_thrhandle_t *__th);
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++ td_err_e (*td_ta_map_lwp2thr_p) (const td_thragent_t *ta,
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++ lwpid_t lwpid, td_thrhandle_t *th);
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++
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++ td_err_e (*td_ta_thr_iter_p) (const td_thragent_t *ta,
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++ td_thr_iter_f *callback, void *cbdata_p,
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++ td_thr_state_e state, int ti_pri,
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++ sigset_t *ti_sigmask_p,
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++ unsigned int ti_user_flags);
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++ td_err_e (*td_ta_event_addr_p) (const td_thragent_t *ta,
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++ td_event_e event, td_notify_t *ptr);
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++ td_err_e (*td_ta_set_event_p) (const td_thragent_t *ta,
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++ td_thr_events_t *event);
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++ td_err_e (*td_ta_event_getmsg_p) (const td_thragent_t *ta,
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++ td_event_msg_t *msg);
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++
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++ td_err_e (*td_thr_validate_p) (const td_thrhandle_t *th);
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++ td_err_e (*td_thr_get_info_p) (const td_thrhandle_t *th,
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++ td_thrinfo_t *infop);
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++ td_err_e (*td_thr_getfpregs_p) (const td_thrhandle_t *th,
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++ gdb_prfpregset_t *regset);
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++ td_err_e (*td_thr_getgregs_p) (const td_thrhandle_t *th,
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++ prgregset_t gregs);
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++ td_err_e (*td_thr_setfpregs_p) (const td_thrhandle_t *th,
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++ const gdb_prfpregset_t *fpregs);
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++ td_err_e (*td_thr_setgregs_p) (const td_thrhandle_t *th,
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++ prgregset_t gregs);
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++ td_err_e (*td_thr_event_enable_p) (const td_thrhandle_t *th,
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++ int event);
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++
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++ td_err_e (*td_thr_tls_get_addr_p) (const td_thrhandle_t *th,
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++ void *map_address,
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++ size_t offset, void **address);
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++
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++ struct thread_db_pointers *next;
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++};
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+
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+ /* Location of the thread creation event breakpoint. The code at this
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+ location in the child process will be called by the pthread library
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+ whenever a new thread is created. By setting a special breakpoint
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+ at this location, GDB can detect when a new thread is created. We
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+ obtain this location via the td_ta_event_addr call. */
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+-static CORE_ADDR td_create_bp_addr;
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++CORE_ADDR td_create_bp_addr;
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+
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+ /* Location of the thread death event breakpoint. */
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+-static CORE_ADDR td_death_bp_addr;
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++CORE_ADDR td_death_bp_addr;
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++
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++static struct thread_db_pointers *current_pointers, *all_pointers;
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+
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+ /* Prototypes for local functions. */
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+ static void thread_db_find_new_threads (void);
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+@@ -262,7 +272,7 @@ thread_get_info_callback (const td_thrha
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+ struct thread_info *thread_info;
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+ ptid_t thread_ptid;
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+
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+- err = td_thr_get_info_p (thp, &ti);
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++ err = current_pointers->td_thr_get_info_p (thp, &ti);
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+ if (err != TD_OK)
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+ error ("thread_get_info_callback: cannot get thread info: %s",
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+ thread_db_err_str (err));
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+@@ -316,8 +326,9 @@ thread_db_map_id2thr (struct thread_info
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+ if (thread_info->private->th_valid)
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+ return;
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+
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+- err = td_ta_map_id2thr_p (thread_agent, GET_THREAD (thread_info->ptid),
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+- &thread_info->private->th);
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++ err = current_pointers->td_ta_map_id2thr_p (thread_agent,
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++ GET_THREAD (thread_info->ptid),
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++ &thread_info->private->th);
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+ if (err != TD_OK)
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+ {
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+ if (fatal)
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+@@ -340,8 +351,8 @@ thread_db_get_info (struct thread_info *
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+ if (!thread_info->private->th_valid)
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+ thread_db_map_id2thr (thread_info, 1);
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+
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+- err =
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+- td_thr_get_info_p (&thread_info->private->th, &thread_info->private->ti);
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++ err = current_pointers->td_thr_get_info_p (&thread_info->private->th,
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++ &thread_info->private->ti);
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+ if (err != TD_OK)
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+ error ("thread_db_get_info: cannot get thread info: %s",
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+ thread_db_err_str (err));
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+@@ -365,7 +376,8 @@ thread_from_lwp (ptid_t ptid)
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+
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+ gdb_assert (is_lwp (ptid));
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+
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+- err = td_ta_map_lwp2thr_p (thread_agent, GET_LWP (ptid), &th);
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++ err = current_pointers->td_ta_map_lwp2thr_p (thread_agent, GET_LWP (ptid),
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++ &th);
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+ if (err != TD_OK)
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+ error ("Cannot find user-level thread for LWP %ld: %s",
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+ GET_LWP (ptid), thread_db_err_str (err));
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+@@ -420,85 +432,102 @@ verbose_dlsym (void *handle, const char
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+ return sym;
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+ }
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+
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+-static int
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+-thread_db_load (void)
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++static struct thread_db_pointers *
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++thread_db_load (const char *name)
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+ {
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++ struct thread_db_pointers *ptrs;
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++ Dl_info info;
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+ void *handle;
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+ td_err_e err;
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+
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+- handle = dlopen (LIBTHREAD_DB_SO, RTLD_NOW);
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++ ptrs = xcalloc (1, sizeof (struct thread_db_pointers));
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++
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++ handle = dlopen (name, RTLD_NOW);
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+ if (handle == NULL)
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+ {
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+- fprintf_filtered (gdb_stderr, "\n\ndlopen failed on '%s' - %s\n",
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+- LIBTHREAD_DB_SO, dlerror ());
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+- fprintf_filtered (gdb_stderr,
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+- "GDB will not be able to debug pthreads.\n\n");
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++ if (all_pointers == NULL)
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++ {
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++ fprintf_filtered (gdb_stderr, "\n\ndlopen failed on '%s' - %s\n",
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++ name, dlerror ());
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++ fprintf_filtered (gdb_stderr,
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++ "GDB will not be able to debug pthreads.\n\n");
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++ }
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+ return 0;
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+ }
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+
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+ /* Initialize pointers to the dynamic library functions we will use.
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+ Essential functions first. */
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+
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+- td_init_p = verbose_dlsym (handle, "td_init");
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+- if (td_init_p == NULL)
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++ ptrs->td_init_p = verbose_dlsym (handle, "td_init");
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++ if (ptrs->td_init_p == NULL)
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+ return 0;
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+
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+- td_ta_new_p = verbose_dlsym (handle, "td_ta_new");
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+- if (td_ta_new_p == NULL)
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++ ptrs->td_ta_new_p = verbose_dlsym (handle, "td_ta_new");
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++ if (ptrs->td_ta_new_p == NULL)
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+ return 0;
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+
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+- td_ta_map_id2thr_p = verbose_dlsym (handle, "td_ta_map_id2thr");
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+- if (td_ta_map_id2thr_p == NULL)
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++ ptrs->td_ta_map_id2thr_p = verbose_dlsym (handle, "td_ta_map_id2thr");
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++ if (ptrs->td_ta_map_id2thr_p == NULL)
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+ return 0;
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+
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+- td_ta_map_lwp2thr_p = verbose_dlsym (handle, "td_ta_map_lwp2thr");
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+- if (td_ta_map_lwp2thr_p == NULL)
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++ ptrs->td_ta_map_lwp2thr_p = verbose_dlsym (handle, "td_ta_map_lwp2thr");
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++ if (ptrs->td_ta_map_lwp2thr_p == NULL)
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+ return 0;
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+
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+- td_ta_thr_iter_p = verbose_dlsym (handle, "td_ta_thr_iter");
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+- if (td_ta_thr_iter_p == NULL)
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++ ptrs->td_ta_thr_iter_p = verbose_dlsym (handle, "td_ta_thr_iter");
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++ if (ptrs->td_ta_thr_iter_p == NULL)
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+ return 0;
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+
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+- td_thr_validate_p = verbose_dlsym (handle, "td_thr_validate");
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+- if (td_thr_validate_p == NULL)
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++ ptrs->td_thr_validate_p = verbose_dlsym (handle, "td_thr_validate");
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++ if (ptrs->td_thr_validate_p == NULL)
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+ return 0;
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+
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+- td_thr_get_info_p = verbose_dlsym (handle, "td_thr_get_info");
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+- if (td_thr_get_info_p == NULL)
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++ ptrs->td_thr_get_info_p = verbose_dlsym (handle, "td_thr_get_info");
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++ if (ptrs->td_thr_get_info_p == NULL)
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+ return 0;
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+
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+- td_thr_getfpregs_p = verbose_dlsym (handle, "td_thr_getfpregs");
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+- if (td_thr_getfpregs_p == NULL)
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++ ptrs->td_thr_getfpregs_p = verbose_dlsym (handle, "td_thr_getfpregs");
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++ if (ptrs->td_thr_getfpregs_p == NULL)
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+ return 0;
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+
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+- td_thr_getgregs_p = verbose_dlsym (handle, "td_thr_getgregs");
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+- if (td_thr_getgregs_p == NULL)
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++ ptrs->td_thr_getgregs_p = verbose_dlsym (handle, "td_thr_getgregs");
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++ if (ptrs->td_thr_getgregs_p == NULL)
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+ return 0;
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+
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+- td_thr_setfpregs_p = verbose_dlsym (handle, "td_thr_setfpregs");
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+- if (td_thr_setfpregs_p == NULL)
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++ ptrs->td_thr_setfpregs_p = verbose_dlsym (handle, "td_thr_setfpregs");
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++ if (ptrs->td_thr_setfpregs_p == NULL)
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+ return 0;
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+
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+- td_thr_setgregs_p = verbose_dlsym (handle, "td_thr_setgregs");
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+- if (td_thr_setgregs_p == NULL)
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++ ptrs->td_thr_setgregs_p = verbose_dlsym (handle, "td_thr_setgregs");
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++ if (ptrs->td_thr_setgregs_p == NULL)
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+ return 0;
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+
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+ /* Initialize the library. */
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+- err = td_init_p ();
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++ err = ptrs->td_init_p ();
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+ if (err != TD_OK)
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+ {
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+ warning ("Cannot initialize libthread_db: %s", thread_db_err_str (err));
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++ xfree (ptrs);
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+ return 0;
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+ }
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+
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+ /* These are not essential. */
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+- td_ta_event_addr_p = dlsym (handle, "td_ta_event_addr");
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+- td_ta_set_event_p = dlsym (handle, "td_ta_set_event");
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+- td_ta_event_getmsg_p = dlsym (handle, "td_ta_event_getmsg");
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+- td_thr_event_enable_p = dlsym (handle, "td_thr_event_enable");
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+- td_thr_tls_get_addr_p = dlsym (handle, "td_thr_tls_get_addr");
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++ ptrs->td_ta_event_addr_p = dlsym (handle, "td_ta_event_addr");
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++ ptrs->td_ta_set_event_p = dlsym (handle, "td_ta_set_event");
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++ ptrs->td_ta_event_getmsg_p = dlsym (handle, "td_ta_event_getmsg");
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++ ptrs->td_thr_event_enable_p = dlsym (handle, "td_thr_event_enable");
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++ ptrs->td_thr_tls_get_addr_p = dlsym (handle, "td_thr_tls_get_addr");
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++
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++ if (dladdr (ptrs->td_ta_new_p, &info) != 0)
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++ ptrs->filename = info.dli_fname;
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++
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++ /* Try dlinfo? */
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++
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++ if (ptrs->filename == NULL)
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++ /* Paranoid - don't let a NULL path slip through. */
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++ ptrs->filename = name;
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+
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+- return 1;
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++ return ptrs;
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+ }
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+
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+ static td_err_e
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+@@ -508,7 +537,7 @@ enable_thread_event (td_thragent_t *thre
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+ td_err_e err;
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+
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+ /* Get the breakpoint address for thread EVENT. */
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+- err = td_ta_event_addr_p (thread_agent, event, ¬ify);
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++ err = current_pointers->td_ta_event_addr_p (thread_agent, event, ¬ify);
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+ if (err != TD_OK)
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+ return err;
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+
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+@@ -534,8 +563,10 @@ enable_thread_event_reporting (void)
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+
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+ /* We cannot use the thread event reporting facility if these
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+ functions aren't available. */
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+- if (td_ta_event_addr_p == NULL || td_ta_set_event_p == NULL
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+- || td_ta_event_getmsg_p == NULL || td_thr_event_enable_p == NULL)
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++ if (current_pointers->td_ta_event_addr_p == NULL
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++ || current_pointers->td_ta_set_event_p == NULL
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++ || current_pointers->td_ta_event_getmsg_p == NULL
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++ || current_pointers->td_thr_event_enable_p == NULL)
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+ return;
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+
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+ /* Set the process wide mask saying which events we're interested in. */
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+@@ -552,7 +583,7 @@ enable_thread_event_reporting (void)
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+ #endif
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+ td_event_addset (&events, TD_DEATH);
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+
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+- err = td_ta_set_event_p (thread_agent, &events);
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++ 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);
|
|
|
+ }
|