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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /linuxthreads_db/td_thr_getfpregs.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'linuxthreads_db/td_thr_getfpregs.c')
-rw-r--r--linuxthreads_db/td_thr_getfpregs.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/linuxthreads_db/td_thr_getfpregs.c b/linuxthreads_db/td_thr_getfpregs.c
new file mode 100644
index 0000000000..31c55c8765
--- /dev/null
+++ b/linuxthreads_db/td_thr_getfpregs.c
@@ -0,0 +1,58 @@
+/* Get a thread's floating-point register set.
+ Copyright (C) 1999, 2001, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.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)
+{
+ struct _pthread_descr_struct pds;
+
+ LOG ("td_thr_getfpregs");
+
+ if (th->th_unique == NULL)
+ {
+ /* No data yet. Use the main thread. */
+ pid_t pid = ps_getpid (th->th_ta_p->ph);
+ if (ps_lgetfpregs (th->th_ta_p->ph, pid, regset) != PS_OK)
+ return TD_ERR;
+ return TD_OK;
+ }
+
+ /* We have to get the state and the PID for this thread. */
+ if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds,
+ sizeof (struct _pthread_descr_struct)) != PS_OK)
+ return TD_ERR;
+
+ /* If the thread already terminated we return all zeroes. */
+ if (pds.p_terminated)
+ memset (regset, '\0', sizeof (*regset));
+ /* Otherwise get the register content through the callback. */
+ else
+ {
+ pid_t pid = pds.p_pid ?: ps_getpid (th->th_ta_p->ph);
+
+ if (ps_lgetfpregs (th->th_ta_p->ph, pid, regset) != PS_OK)
+ return TD_ERR;
+ }
+
+ return TD_OK;
+}