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/*--------------------------------------------------------------------*/
/*--- x86/tool_arch.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, an extensible x86 protected-mode
emulator for monitoring program execution on x86-Unixes.
Copyright (C) 2000-2005 Nicholas Nethercote
njn25@cam.ac.uk
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 __X86_TOOL_ARCH_H
#define __X86_TOOL_ARCH_H
// XXX: eventually a lot of the stuff in this file can be made private to
// the x86/ subdir, and not visible to the core. But as long as the core
// still refers to them, they'll have to stay in here.
/*====================================================================*/
/*=== Registers, etc ===*/
/*====================================================================*/
#define REGPARM(n) __attribute__((regparm(n)))
// Accessors for the ThreadState
#define R_STACK_PTR R_ESP
#define R_FRAME_PTR R_EBP
#define FIRST_ARCH_REG R_EAX
#define LAST_ARCH_REG R_EDI
#define N_ARCH_REGS 8
#define MIN_INSTR_SIZE 1
#define MAX_INSTR_SIZE 16
/* Total number of integer registers available for allocation -- all of
them except %esp (points to Valgrind's stack) and %ebp (permanently
points at the ThreadState).
If you increase this you'll have to also change at least these:
- VG_(rank_to_realreg)()
- VG_(realreg_to_rank)()
- ppRegsLiveness()
- the RegsLive type (maybe -- RegsLive type must have more than
VG_MAX_REALREGS bits)
You can decrease it, and performance will drop because more spills will
occur. If you decrease it too much, everything will fall over.
Do not change this unless you really know what you are doing! */
#define VG_MAX_REALREGS 6
/*====================================================================*/
/*=== Instrumenting UCode ===*/
/*====================================================================*/
#endif // __X86_TOOL_ARCH_H
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/
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