diff options
Diffstat (limited to 'toolchain/gdb/patches/710-debian_thread-db-multiple-libraries.patch')
| -rw-r--r-- | toolchain/gdb/patches/710-debian_thread-db-multiple-libraries.patch | 593 |
1 files changed, 0 insertions, 593 deletions
diff --git a/toolchain/gdb/patches/710-debian_thread-db-multiple-libraries.patch b/toolchain/gdb/patches/710-debian_thread-db-multiple-libraries.patch deleted file mode 100644 index c164bd1..0000000 --- a/toolchain/gdb/patches/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, ¬ify); -+ err = current_pointers->td_ta_event_addr_p (thread_agent, event, ¬ify); - 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); - } |