Delete old x86 validator.

src/trusted/validator/x86/ncval_reg_sfi/nc_protect_base.h

-/*
- * Copyright (c) 2012 The Native Client Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_NCVAL_REG_SFI_NC_PROTECT_BASE_H__
-#define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_NCVAL_REG_SFI_NC_PROTECT_BASE_H__
-
-#include "native_client/src/shared/utils/types.h"
-#include "native_client/src/trusted/validator/x86/decoder/gen/ncopcode_operand_kind.h"
-
-/* nc_protect_base.h - For 64-bit mode, verifies that no instruction
- * changes the value of the base register.
- */
-
-/*
- * Note: The function BaseRegisterValidator is used as a validator
- * function to be applied to a validated segment, as defined in
- * ncvalidate_iter.h.
- */
-
-/* The model of a validator state. */
-struct NaClValidatorState;
-
-/* The state associated with a decoded instruction. */
-struct NaClInstState;
-
-/* Defines locals used by the NaClBaseRegisterValidator to
- * record registers set in the current instruction, that are
- * a problem if not used correctly in the next instruction.
- */
-typedef struct NaClRegisterLocals {
-  /* Points to an instruction that contains an assignment to register ESP,
-   * or NULL if the instruction doesn't set ESP. This is done so that we
-   * can check if the next instruction uses the value of ESP to update RSP
-   * (if not, we need to report that ESP is incorrectly assigned).
-   */
-  struct NaClInstState* esp_set_inst;
-  /* Points to the instruction that contains an assignment to register EBP,
-   * or NULL if the instruction doesn't set EBP. This is done so that we
-   * can check if the next instruciton uses the value of EBP to update RBP
-   * (if not, we need to report that EBP is incorrectly assigned).
-   */
-  struct NaClInstState* ebp_set_inst;
-} NaClRegisterLocals;
-
-/* Ths size of the circular buffer, used to keep track of registers
- * assigned in the previous instruction, that must be correctly used
- * in the current instruction, or reported as an error.
- */
-#define NACL_REGISTER_LOCALS_BUFFER_SIZE 2
-
-/* A circular buffer of two elements, used to  keep track of the
- * current/previous instruction.
- */
-typedef struct NaClBaseRegisterLocals {
-  NaClRegisterLocals buffer[NACL_REGISTER_LOCALS_BUFFER_SIZE];
-  int previous_index;
-  int current_index;
-} NaClBaseRegisterLocals;
-
-/* Initializes memory to hold local information for validator
- * NaClBaseRegisterValidator. Returns true if successful.
- */
-void NaClBaseRegisterMemoryInitialize(struct NaClValidatorState* state);
-
-/* Validator function to check that the base register is never set. */
-void NaClBaseRegisterValidator(struct NaClValidatorState* state);
-
-
-/* Post iteration validator summarization function. */
-void NaClBaseRegisterSummarize(struct NaClValidatorState* state);
-
-/* Checks for pattern
- *     op %reg32), ...
- *     lea %reg64, [%reg64+%rbase*1]
- *
- * where reg64 is the passed 64-bit register, reg32 is the
- * corresponding 32-bit register, and op is a 32-bit zero-extending
- * operation (such as mov).
- */
-Bool NaClAcceptLeaWithMoveLea32To64(struct NaClValidatorState* state,
-                                    NaClOpKind reg);
-
-#endif  /* NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_NCVAL_REG_SFI_NC_PROTECT_BASE_H__ */