From: roland <roland>
Date: Tue, 16 Aug 1994 06:11:21 +0000 (+0000)
Subject: Initial revision
X-Git-Tag: jems-14oct94~394
X-Git-Url: http://git.csclub.uwaterloo.ca/?p=kopensolaris-gnu%2Fglibc.git;a=commitdiff_plain;h=6e090b2b84ced338d3de9724a95e04afb358677c

Initial revision
---

diff --git a/sysdeps/mach/thread_state.h b/sysdeps/mach/thread_state.h
new file mode 100644
index 0000000000..76e5784c6b
--- /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));
+}