| |
| /*--------------------------------------------------------------------*/ |
| /*--- 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 |
| Julian_Seward@muraroa.demon.co.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 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) |
| |
| /* Reasons why the inner simulation loop might stop (i.e. why has |
| vg_dispatch_ctr reached zero? */ |
| #define VG_Y_SIGCHECK 0 /* signal check due */ |
| #define VG_Y_SMC 1 /* write to code detected */ |
| #define VG_Y_EXIT 2 /* natural or debug end to simulation */ |
| #define VG_Y_TRANSLATE 3 /* translation of vg_m_eip needed */ |
| |
| /* Check for pending signals every this-many jumps. Since this |
| happens in the region of once per millisecond, we also take the |
| opportunity do do a bit of quick sanity checking at the same time. |
| Look at the call sites of VG_(deliver_signals). */ |
| #define VG_SIGCHECK_INTERVAL 1000 |
| |
| /* A ,agic 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). */ |
| #define VG_EBP_DISPATCH_CHECKED 17 |
| |
| /* 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 1 |
| #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 |
| |
| |
| #endif /* ndef __VG_INCLUDE_H */ |
| |
| /*--------------------------------------------------------------------*/ |
| /*--- end vg_constants.h ---*/ |
| /*--------------------------------------------------------------------*/ |