From e1e46622ac0fce73d802fa4a8a2e83cc25cd9e7a Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Sat, 14 Feb 2015 23:04:02 -0600 Subject: Revert "resolve merge" This reverts commit 6b6ede3d15f04fe825cfa9f697507457e3640344. --- libpthread/linuxthreads.old_db/td_ta_map_lwp2thr.c | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 libpthread/linuxthreads.old_db/td_ta_map_lwp2thr.c (limited to 'libpthread/linuxthreads.old_db/td_ta_map_lwp2thr.c') diff --git a/libpthread/linuxthreads.old_db/td_ta_map_lwp2thr.c b/libpthread/linuxthreads.old_db/td_ta_map_lwp2thr.c new file mode 100644 index 000000000..00efc43d6 --- /dev/null +++ b/libpthread/linuxthreads.old_db/td_ta_map_lwp2thr.c @@ -0,0 +1,89 @@ +/* Which thread is running on an lwp? + Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 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, see + . */ + +#include "thread_dbP.h" + + +td_err_e +td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th) +{ + int pthread_threads_max = ta->pthread_threads_max; + size_t sizeof_descr = ta->sizeof_descr; + struct pthread_handle_struct phc[pthread_threads_max]; + size_t cnt; +#ifdef ALL_THREADS_STOPPED + int num; +#else +# define num 1 +#endif + + LOG ("td_ta_map_lwp2thr"); + + /* Test whether the TA parameter is ok. */ + if (! ta_ok (ta)) + return TD_BADTA; + + /* Read all the descriptors. */ + if (ps_pdread (ta->ph, ta->handles, phc, + sizeof (struct pthread_handle_struct) * pthread_threads_max) + != PS_OK) + return TD_ERR; /* XXX Other error value? */ + +#ifdef ALL_THREADS_STOPPED + /* Read the number of currently active threads. */ + if (ps_pdread (ta->ph, ta->pthread_handles_num, &num, sizeof (int)) != PS_OK) + return TD_ERR; /* XXX Other error value? */ +#endif + + /* Get the entries one after the other and find out whether the ID + matches. */ + for (cnt = 0; cnt < pthread_threads_max && num > 0; ++cnt) + if (phc[cnt].h_descr != NULL) + { + struct _pthread_descr_struct pds; + +#ifdef ALL_THREADS_STOPPED + /* First count this active thread. */ + --num; +#endif + + if (ps_pdread (ta->ph, phc[cnt].h_descr, &pds, sizeof_descr) != PS_OK) + return TD_ERR; /* XXX Other error value? */ + + if ((pds.p_pid ?: ps_getpid (ta->ph)) == lwpid) + { + /* Found it. Now fill in the `td_thrhandle_t' object. */ + th->th_ta_p = (td_thragent_t *) ta; + th->th_unique = phc[cnt].h_descr; + + return TD_OK; + } + } + else if (cnt == 0) + { + /* The initial thread always exists. But it might not yet be + initialized. Construct a value. */ + th->th_ta_p = (td_thragent_t *) ta; + th->th_unique = NULL; + + return TD_OK; + } + + return TD_NOLWP; +} -- cgit v1.2.3