Initial revision

diff --git a/sysdeps/mach/thread_state.h b/sysdeps/mach/thread_state.h
new file mode 100644 (file)
index 0000000..76e5784
--- /dev/null
+++ b/sysdeps/mach/thread_state.h
@@ -0,0 +1,54 @@
+/* Generic definitions for dealing with Mach thread states.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+
+/* Everything else is called `thread_state', but CMU's header file is
+   called `thread_status'.  Oh boy.  */
+#include <mach/thread_status.h>
+
+/* These functions are of use in machine-dependent signal trampoline
+   implementations.  */
+
+static inline int
+machine_get_state (struct machine_thread_all_state *state,
+                  int flavor, void *stateptr, void *scpptr, size_t size)
+{
+  if (state->set & (1 << flavor))
+    {
+      /* Copy the saved state.  */
+      memcpy (scpptr, stateptr, size);
+      return 1;
+    }
+  else
+    {
+      /* Noone asked about this flavor of state before; fetch the state
+        directly from the kernel into the sigcontext.  */
+      unsigned int got;
+      return (! __thread_get_state (ss->thread, flavor, scpptr, &got)
+             && got == (size / sizeof (int)));
+    }
+}
+
+static inline int
+machine_get_basic_state (void)
+{
+  return machine_get_state (MACHINE_THREAD_STATE_FLAVOR, &state->basic,
+                           &scp->sc_##machine_thread_state,
+                           sizeof (state->basic));
+}