Created m_machine, for various machine-related things.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3903 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/include/pub_tool_machine.h b/include/pub_tool_machine.h
new file mode 100644
index 0000000..b805733
--- /dev/null
+++ b/include/pub_tool_machine.h
@@ -0,0 +1,71 @@
+
+/*--------------------------------------------------------------------*/
+/*--- Machine-related stuff. pub_tool_machine.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_TOOL_MACHINE
+#define __PUB_TOOL_MACHINE
+
+/* VGA_STACK_REDZONE_SZB: how many bytes below the stack pointer are validly
+ * addressible? */
+#if defined(VGA_x86)
+# define VGA_MIN_INSTR_SZB 1
+# define VGA_MAX_INSTR_SZB 16
+# define VGA_STACK_REDZONE_SZB 0
+#elif defined(VGA_amd64)
+# define VGA_MIN_INSTR_SZB 1
+# define VGA_MAX_INSTR_SZB 16
+# define VGA_STACK_REDZONE_SZB 128
+#elif defined(VGA_arm)
+# define VGA_MIN_INSTR_SZB 4
+# define VGA_MAX_INSTR_SZB 4
+# define VGA_STACK_REDZONE_SZB 0
+#else
+# error Unknown arch
+#endif
+
+// Guest state accessors
+extern Addr VG_(get_SP) ( ThreadId tid );
+extern Addr VG_(get_IP) ( ThreadId tid );
+extern Addr VG_(get_FP) ( ThreadId tid );
+
+extern void VG_(set_SP) ( ThreadId tid, Addr sp );
+extern void VG_(set_IP) ( ThreadId tid, Addr ip );
+
+// For get/set, 'area' is where the asked-for shadow state will be copied
+// into/from.
+extern void VG_(get_shadow_regs_area) ( ThreadId tid, OffT guest_state_offset,
+ SizeT size, UChar* area );
+extern void VG_(set_shadow_regs_area) ( ThreadId tid, OffT guest_state_offset,
+ SizeT size, const UChar* area );
+
+#endif // __PUB_TOOL_MACHINE
+
+/*--------------------------------------------------------------------*/
+/*--- end ---*/
+/*--------------------------------------------------------------------*/