From a319d590551ff74bbc4de51243e2d5f20ac4c7fd Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Sat, 17 Oct 2009 12:32:38 -0700 Subject: libpthread/nptl_db: debugging support for nptl Signed-off-by: Austin Foxley --- libpthread/nptl_db/td_thr_getfpregs.c | 53 +++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 libpthread/nptl_db/td_thr_getfpregs.c (limited to 'libpthread/nptl_db/td_thr_getfpregs.c') diff --git a/libpthread/nptl_db/td_thr_getfpregs.c b/libpthread/nptl_db/td_thr_getfpregs.c new file mode 100644 index 000000000..7760512eb --- /dev/null +++ b/libpthread/nptl_db/td_thr_getfpregs.c @@ -0,0 +1,53 @@ +/* Get a thread's floating-point register set. + Copyright (C) 1999, 2001, 2002, 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "thread_dbP.h" + + +td_err_e +td_thr_getfpregs (const td_thrhandle_t *th, prfpregset_t *regset) +{ + psaddr_t cancelhandling, tid; + td_err_e err; + + LOG ("td_thr_getfpregs"); + + /* We have to get the state and the PID for this thread. */ + err = DB_GET_FIELD (cancelhandling, th->th_ta_p, th->th_unique, pthread, + cancelhandling, 0); + if (err != TD_OK) + return err; + + /* If the thread already terminated we return all zeroes. */ + if (((int) (uintptr_t) cancelhandling) & TERMINATED_BITMASK) + memset (regset, '\0', sizeof (*regset)); + /* Otherwise get the register content through the callback. */ + else + { + err = DB_GET_FIELD (tid, th->th_ta_p, th->th_unique, pthread, tid, 0); + if (err != TD_OK) + return err; + + if (ps_lgetfpregs (th->th_ta_p->ph, (uintptr_t) tid, regset) != PS_OK) + return TD_ERR; + } + + return TD_OK; +} -- cgit v1.2.3