1 2 /*--------------------------------------------------------------------*/ 3 /*--- The translation table and cache. ---*/ 4 /*--- pub_core_transtab.h ---*/ 5 /*--------------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 11 Copyright (C) 2000-2011 Julian Seward 12 jseward@acm.org 13 14 This program is free software; you can redistribute it and/or 15 modify it under the terms of the GNU General Public License as 16 published by the Free Software Foundation; either version 2 of the 17 License, or (at your option) any later version. 18 19 This program is distributed in the hope that it will be useful, but 20 WITHOUT ANY WARRANTY; without even the implied warranty of 21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 22 General Public License for more details. 23 24 You should have received a copy of the GNU General Public License 25 along with this program; if not, write to the Free Software 26 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 27 02111-1307, USA. 28 29 The GNU General Public License is contained in the file COPYING. 30 */ 31 32 #ifndef __PUB_CORE_TRANSTAB_H 33 #define __PUB_CORE_TRANSTAB_H 34 35 //-------------------------------------------------------------------- 36 // PURPOSE: This module is responsible for caching translations, and 37 // enabling fast look-ups of them. 38 //-------------------------------------------------------------------- 39 40 #include "pub_core_transtab_asm.h" 41 42 /* The fast-cache for tt-lookup, and for finding counters. Unused 43 entries are denoted by .guest == 1, which is assumed to be a bogus 44 address for all guest code. */ 45 typedef 46 struct { 47 Addr guest; 48 Addr host; 49 } 50 FastCacheEntry; 51 52 extern __attribute__((aligned(16))) 53 FastCacheEntry VG_(tt_fast) [VG_TT_FAST_SIZE]; 54 55 #define TRANSTAB_BOGUS_GUEST_ADDR ((Addr)1) 56 57 extern UInt* VG_(tt_fastN)[VG_TT_FAST_SIZE]; 58 59 extern void VG_(init_tt_tc) ( void ); 60 61 extern 62 void VG_(add_to_transtab)( VexGuestExtents* vge, 63 Addr64 entry, 64 AddrH code, 65 UInt code_len, 66 Bool is_self_checking ); 67 68 extern Bool VG_(search_transtab) ( /*OUT*/AddrH* result, 69 Addr64 guest_addr, 70 Bool upd_cache ); 71 72 extern void VG_(discard_translations) ( Addr64 start, ULong range, 73 HChar* who ); 74 75 extern void VG_(print_tt_tc_stats) ( void ); 76 77 extern UInt VG_(get_bbs_translated) ( void ); 78 79 /* Add to / search the auxiliary, small, unredirected translation 80 table. */ 81 82 extern 83 void VG_(add_to_unredir_transtab)( VexGuestExtents* vge, 84 Addr64 entry, 85 AddrH code, 86 UInt code_len ); 87 extern 88 Bool VG_(search_unredir_transtab) ( /*OUT*/AddrH* result, 89 Addr64 guest_addr ); 90 91 // BB profiling stuff 92 93 typedef struct _BBProfEntry { 94 Addr64 addr; 95 ULong score; 96 } BBProfEntry; 97 98 extern ULong VG_(get_BB_profile) ( BBProfEntry tops[], UInt n_tops ); 99 100 #endif // __PUB_CORE_TRANSTAB_H 101 102 /*--------------------------------------------------------------------*/ 103 /*--- end ---*/ 104 /*--------------------------------------------------------------------*/ 105