Final commit for the initial modularisation pass:

- Broke part of m_scheduler off into a new module m_threadstate.  It
  contains ThreadState, VG_(threads)[] and some basic operations on the
  thread table.  All simple stuff, the complex stuff stays in m_scheduler.
  This avoids lots of circular dependencies between m_scheduler and other
  modules.

- Managed to finally remove core.h and tool.h, double hurrah!

- Introduced pub_tool_basics.h and pub_core_basics.h, one of which is
  include by every single C file.

- Lots of little cleanups and changes related to the above.

- I even did a small amount of documentation updating.




git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3944 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/pub_core_basics.h b/coregrind/pub_core_basics.h
new file mode 100644
index 0000000..42d6f20
--- /dev/null
+++ b/coregrind/pub_core_basics.h
@@ -0,0 +1,65 @@
+
+/*--------------------------------------------------------------------*/
+/*--- Header included by every core C file.      pub_core_basics.h ---*/
+/*--------------------------------------------------------------------*/
+
+/*
+   This file is part of Valgrind, a dynamic binary instrumentation
+   framework.
+
+   Copyright (C) 2000-2005 Julian Seward
+      jseward@acm.org
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   This program 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307, USA.
+
+   The GNU General Public License is contained in the file COPYING.
+*/
+
+#ifndef __PUB_CORE_BASICS_H
+#define __PUB_CORE_BASICS_H
+
+//--------------------------------------------------------------------
+// PURPOSE: This header should be imported by every single C file
+// in the core.  It contains the basic types and other things needed
+// everywhere.
+//--------------------------------------------------------------------
+
+#include "pub_tool_basics.h"
+
+/* ---------------------------------------------------------------------
+   Other headers to include
+   ------------------------------------------------------------------ */
+
+// Might as well have the following two in here, their contents are used so
+// broadly (eg. in pub_core_threadstate.h).
+
+#include "libvex.h"
+
+#if defined(VGA_x86)
+#  include "libvex_guest_x86.h"
+#elif defined(VGA_amd64)
+#  include "libvex_guest_amd64.h"
+#else
+#  error Unknown arch
+#endif
+
+#include <setjmp.h>
+
+#endif   // __PUB_CORE_BASICS_H
+
+/*--------------------------------------------------------------------*/
+/*--- end                                                          ---*/
+/*--------------------------------------------------------------------*/