import new linuxthreads_db from glibc HEAD

1 files changed, 58 insertions, 0 deletions

diff --git a/libpthread/linuxthreads_db/td_thr_getfpregs.c b/libpthread/linuxthreads_db/td_thr_getfpregs.c
new file mode 100644
index 000000000..31c55c876
--- /dev/null
+++ b/libpthread/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;
+}