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) 2000-2012 Julian Seward 12 jseward (at) 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. Unused entries are denoted by .guest 43 == 1, which is assumed to be a bogus address for all guest code. */ 44 typedef 45 struct { 46 Addr guest; 47 Addr host; 48 } 49 FastCacheEntry; 50 51 extern __attribute__((aligned(16))) 52 FastCacheEntry VG_(tt_fast) [VG_TT_FAST_SIZE]; 53 54 #define TRANSTAB_BOGUS_GUEST_ADDR ((Addr)1) 55 56 extern void VG_(init_tt_tc) ( void ); 57 58 extern 59 void VG_(add_to_transtab)( VexGuestExtents* vge, 60 Addr64 entry, 61 AddrH code, 62 UInt code_len, 63 Bool is_self_checking, 64 Int offs_profInc, 65 UInt n_guest_instrs, 66 VexArch arch_host ); 67 68 extern 69 void VG_(tt_tc_do_chaining) ( void* from__patch_addr, 70 UInt to_sNo, 71 UInt to_tteNo, 72 Bool to_fastEP ); 73 74 extern Bool VG_(search_transtab) ( /*OUT*/AddrH* res_hcode, 75 /*OUT*/UInt* res_sNo, 76 /*OUT*/UInt* res_tteNo, 77 Addr64 guest_addr, 78 Bool upd_cache ); 79 80 extern void VG_(discard_translations) ( Addr64 start, ULong range, 81 HChar* who ); 82 83 extern void VG_(print_tt_tc_stats) ( void ); 84 85 extern UInt VG_(get_bbs_translated) ( void ); 86 87 /* Add to / search the auxiliary, small, unredirected translation 88 table. */ 89 90 extern 91 void VG_(add_to_unredir_transtab)( VexGuestExtents* vge, 92 Addr64 entry, 93 AddrH code, 94 UInt code_len ); 95 extern 96 Bool VG_(search_unredir_transtab) ( /*OUT*/AddrH* result, 97 Addr64 guest_addr ); 98 99 // BB profiling stuff 100 101 typedef struct _BBProfEntry { 102 Addr64 addr; 103 ULong score; 104 } BBProfEntry; 105 106 extern ULong VG_(get_BB_profile) ( BBProfEntry tops[], UInt n_tops ); 107 108 #endif // __PUB_CORE_TRANSTAB_H 109 110 /*--------------------------------------------------------------------*/ 111 /*--- end ---*/ 112 /*--------------------------------------------------------------------*/ 113
