diff options
Diffstat (limited to 'libpthread/nptl_db/td_thr_event_getmsg.c')
| -rw-r--r-- | libpthread/nptl_db/td_thr_event_getmsg.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/libpthread/nptl_db/td_thr_event_getmsg.c b/libpthread/nptl_db/td_thr_event_getmsg.c deleted file mode 100644 index 70ea6953e..000000000 --- a/libpthread/nptl_db/td_thr_event_getmsg.c +++ /dev/null @@ -1,119 +0,0 @@ -/* Retrieve event. - Copyright (C) 1999, 2001, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 1999. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include "thread_dbP.h" -#include <assert.h> - - -td_err_e -td_thr_event_getmsg (const td_thrhandle_t *th, td_event_msg_t *msg) -{ - td_err_e err; - psaddr_t eventbuf, eventnum, eventdata; - psaddr_t thp, prevp; - void *copy; - - LOG ("td_thr_event_getmsg"); - - /* Copy the event message buffer in from the inferior. */ - err = DB_GET_FIELD_ADDRESS (eventbuf, th->th_ta_p, th->th_unique, pthread, - eventbuf, 0); - if (err == TD_OK) - err = DB_GET_STRUCT (copy, th->th_ta_p, eventbuf, td_eventbuf_t); - if (err != TD_OK) - return err; - - /* Check whether an event occurred. */ - err = DB_GET_FIELD_LOCAL (eventnum, th->th_ta_p, copy, - td_eventbuf_t, eventnum, 0); - if (err != TD_OK) - return err; - if ((int) (uintptr_t) eventnum == TD_EVENT_NONE) - /* Nothing. */ - return TD_NOMSG; - - /* Fill the user's data structure. */ - err = DB_GET_FIELD_LOCAL (eventdata, th->th_ta_p, copy, - td_eventbuf_t, eventdata, 0); - if (err != TD_OK) - return err; - - msg->msg.data = (uintptr_t) eventdata; - msg->event = (uintptr_t) eventnum; - msg->th_p = th; - - /* And clear the event message in the target. */ - memset (copy, 0, th->th_ta_p->ta_sizeof_td_eventbuf_t); - err = DB_PUT_STRUCT (th->th_ta_p, eventbuf, td_eventbuf_t, copy); - if (err != TD_OK) - return err; - - /* Get the pointer to the thread descriptor with the last event. - If it doesn't match TH, then walk down the list until we find it. - We must splice it out of the list so that there is no dangling - pointer to it later when it dies. */ - err = DB_GET_SYMBOL (prevp, th->th_ta_p, __nptl_last_event); - if (err != TD_OK) - return err; - err = DB_GET_VALUE (thp, th->th_ta_p, __nptl_last_event, 0); - if (err != TD_OK) - return err; - - while (thp != 0) - { - psaddr_t next; - err = DB_GET_FIELD (next, th->th_ta_p, th->th_unique, pthread, - nextevent, 0); - if (err != TD_OK) - return err; - - if (next == thp) - return TD_DBERR; - - if (thp == th->th_unique) - { - /* PREVP points at this thread, splice it out. */ - psaddr_t next_nextp; - err = DB_GET_FIELD_ADDRESS (next_nextp, th->th_ta_p, next, pthread, - nextevent, 0); - assert (err == TD_OK); /* We used this field before. */ - if (prevp == next_nextp) - return TD_DBERR; - - err = _td_store_value (th->th_ta_p, - th->th_ta_p->ta_var___nptl_last_event, -1, - 0, prevp, next); - if (err != TD_OK) - return err; - - /* Now clear this thread's own next pointer so it's not dangling - when the thread resumes and then chains on for its next event. */ - return DB_PUT_FIELD (th->th_ta_p, thp, pthread, nextevent, 0, 0); - } - - err = DB_GET_FIELD_ADDRESS (prevp, th->th_ta_p, thp, pthread, - nextevent, 0); - assert (err == TD_OK); /* We used this field before. */ - thp = next; - } - - /* Ack! This should not happen. */ - return TD_DBERR; -} |