| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright (c) 2011 The Native Client Authors. All rights reserved. | |
| 3 * Use of this source code is governed by a BSD-style license that can be | |
| 4 * found in the LICENSE file. | |
| 5 */ | |
| 6 | |
| 7 /* Captures instructions that can be locked. | |
| 8 * | |
| 9 * Extracted from zection '1.2.5 Lock Prefix' in AMD Document 25494 - AMD64 | |
| 10 * Architecture Programmer's Manual, Volume 3: General-Purpose and System | |
| 11 * Instructions. | |
| 12 * | |
| 13 * Note: This is used by the x86-64 validator to decide what operations can | |
| 14 * be locked. | |
| 15 */ | |
| 16 | |
| 17 #ifndef NACL_TRUSTED_BUT_NOT_TCB | |
| 18 #error("This file is not meant for use in the TCB") | |
| 19 #endif | |
| 20 | |
| 21 #include "native_client/src/trusted/validator/x86/decoder/generator/lock_insts.h
" | |
| 22 | |
| 23 #include "native_client/src/include/nacl_macros.h" | |
| 24 #include "native_client/src/trusted/validator/x86/decoder/generator/ncdecode_for
ms.h" | |
| 25 #include "native_client/src/trusted/validator/x86/decoder/generator/ncdecode_tab
legen.h" | |
| 26 | |
| 27 /* List of instruction nmemonics that can be locked. */ | |
| 28 static const NaClMnemonic kLockableOp[] = { | |
| 29 InstAdc, | |
| 30 InstAdd, | |
| 31 InstAnd, | |
| 32 InstBtc, | |
| 33 InstBtr, | |
| 34 InstBts, | |
| 35 InstCmpxchg, | |
| 36 /* Note: The following two instructions are not implemented as separate | |
| 37 * instructions from Cmpxchg, but are separated in the AMD manual. | |
| 38 */ | |
| 39 InstCmpxchg8b, | |
| 40 InstCmpxchg16b, | |
| 41 InstDec, | |
| 42 InstInc, | |
| 43 InstNeg, | |
| 44 InstNot, | |
| 45 InstOr, | |
| 46 InstSbb, | |
| 47 InstSub, | |
| 48 InstXadd, | |
| 49 InstXchg, | |
| 50 InstXor | |
| 51 }; | |
| 52 | |
| 53 void NaClLockableFlagIfApplicable(void) { | |
| 54 if (NaClInInstructionSet(kLockableOp, NACL_ARRAY_SIZE(kLockableOp), | |
| 55 NULL, 0)) { | |
| 56 NaClAddIFlags(NACL_IFLAG(OpcodeLockable)); | |
| 57 } | |
| 58 } | |
| OLD | NEW |