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/*--------------------------------------------------------------------*/
/*--- A header file containing constants (for assembly code). ---*/
/*--- vg_constants.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, an x86 protected-mode emulator
designed for debugging and profiling binaries on x86-Unixes.
Copyright (C) 2000-2002 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 LICENSE.
*/
#ifndef __VG_CONSTANTS_H
#define __VG_CONSTANTS_H
/* This file is included in all Valgrind source files, including
assembly ones. */
/* All symbols externally visible from valgrind.so are prefixed
as specified here. The prefix can be changed, so as to avoid
namespace conflict problems.
*/
#define VGAPPEND(str1,str2) str1##str2
/* These macros should add different prefixes so the same base
name can safely be used across different macros. */
#define VG_(str) VGAPPEND(vgPlain_,str)
#define VGM_(str) VGAPPEND(vgMem_,str)
#define VGP_(str) VGAPPEND(vgProf_,str)
#define VGOFF_(str) VGAPPEND(vgOff_,str)
/* Magic values that %ebp might be set to when returning to the
dispatcher. The only other legitimate value is to point to the
start of VG_(baseBlock). These also are return values from
VG_(run_innerloop) to the scheduler.
EBP means %ebp can legitimately have this value when a basic block
returns to the dispatch loop. TRC means that this value is a valid
thread return code, which the dispatch loop may return to the
scheduler. */
#define VG_TRC_EBP_JMP_STKADJ 17 /* EBP only; handled by dispatcher */
#define VG_TRC_EBP_JMP_SYSCALL 19 /* EBP and TRC */
#define VG_TRC_EBP_JMP_CLIENTREQ 23 /* EBP and TRC */
#define VG_TRC_INNER_COUNTERZERO 29 /* TRC only; means bb ctr == 0 */
#define VG_TRC_INNER_FASTMISS 31 /* TRC only; means fast-cache miss. */
#define VG_TRC_UNRESUMABLE_SIGNAL 37 /* TRC only; got sigsegv/sigbus */
/* Debugging hack for assembly code ... sigh. */
#if 0
#define OYNK(nnn) pushal; pushl $nnn; call VG_(oynk) ; addl $4,%esp; popal
#else
#define OYNK(nnn)
#endif
#if 0
#define OYNNK(nnn) pushal; pushl $nnn; call VG_(oynk) ; addl $4,%esp; popal
#else
#define OYNNK(nnn)
#endif
/* Constants for the fast translation lookup cache. */
#define VG_TT_FAST_BITS 15
#define VG_TT_FAST_SIZE (1 << VG_TT_FAST_BITS)
#define VG_TT_FAST_MASK ((VG_TT_FAST_SIZE) - 1)
/* Constants for the fast original-code-write check cache. */
/* Usually you want this to be zero. */
#define VG_SMC_FASTCHECK_IN_C 0
#define VG_SMC_CACHE_BITS 19
#define VG_SMC_CACHE_SIZE (1 << VG_SMC_CACHE_BITS)
#define VG_SMC_CACHE_MASK ((VG_SMC_CACHE_SIZE) - 1)
#define VG_SMC_CACHE_SHIFT 6
/* Assembly code stubs make these requests ... */
#define VG_USERREQ__SIGNAL_RETURNS 0x4001
#define VG_USERREQ__PTHREAD_RETURNS 0x4002
#endif /* ndef __VG_INCLUDE_H */
/*--------------------------------------------------------------------*/
/*--- end vg_constants.h ---*/
/*--------------------------------------------------------------------*/