diff options
Diffstat (limited to 'nptl_db/td_thr_getfpregs.c')
-rw-r--r-- | nptl_db/td_thr_getfpregs.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/nptl_db/td_thr_getfpregs.c b/nptl_db/td_thr_getfpregs.c new file mode 100644 index 0000000000..360e1d2f29 --- /dev/null +++ b/nptl_db/td_thr_getfpregs.c @@ -0,0 +1,52 @@ +/* Get a thread's floating-point register set. + Copyright (C) 1999, 2001, 2002 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" + + +td_err_e +td_thr_getfpregs (const td_thrhandle_t *th, prfpregset_t *regset) +{ + LOG ("td_thr_getfpregs"); + + /* We have to get the state and the PID for this thread. */ + int cancelhandling; + if (ps_pdread (th->th_ta_p->ph, + &((struct pthread *) th->th_unique)->cancelhandling, + &cancelhandling, sizeof (int)) != PS_OK) + return TD_ERR; + + /* If the thread already terminated we return all zeroes. */ + if (cancelhandling & TERMINATED_BIT) + memset (regset, '\0', sizeof (*regset)); + /* Otherwise get the register content through the callback. */ + else + { + pid_t tid; + + if (ps_pdread (th->th_ta_p->ph, + &((struct pthread *) th->th_unique)->tid, + &tid, sizeof (pid_t)) != PS_OK + || ps_lgetfpregs (th->th_ta_p->ph, tid, regset) != PS_OK) + return TD_ERR; + } + + return TD_OK; +} |