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Unified Diff: src/trusted/validator_ragel/unreviewed/decoder_x86_32.rl

Issue 11000033: Move validator_x86_XX.rl out of unreviewed. (Closed) Base URL: svn://svn.chromium.org/native_client/trunk/src/native_client/
Patch Set: Created 8 years, 2 months ago
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Index: src/trusted/validator_ragel/unreviewed/decoder_x86_32.rl
===================================================================
--- src/trusted/validator_ragel/unreviewed/decoder_x86_32.rl (revision 9911)
+++ src/trusted/validator_ragel/unreviewed/decoder_x86_32.rl (working copy)
@@ -1,190 +0,0 @@
-/*
- * Copyright (c) 2011 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.
- */
-
-#include <assert.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "native_client/src/shared/utils/types.h"
-#include "native_client/src/trusted/validator_ragel/unreviewed/decoding.h"
-
-#include "native_client/src/trusted/validator_ragel/gen/decoder_x86_32_instruction_consts.h"
-
-%%{
- machine x86_32_decoder;
- alphtype unsigned char;
- variable p current_position;
- variable pe end_of_data;
- variable eof end_of_data;
- variable cs current_state;
-
- include byte_machine "byte_machines.rl";
-
- include prefix_actions
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include prefixes_parsing
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include vex_actions_ia32
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include vex_parsing_ia32
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include displacement_fields_actions
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include displacement_fields_parsing
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include modrm_actions_ia32
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include modrm_parsing_ia32
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include operand_actions_ia32
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include immediate_fields_actions
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include immediate_fields_parsing_ia32
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include relative_fields_actions
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include relative_fields_parsing
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include cpuid_actions
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
-
- include decode_x86_32 "decoder_x86_32_instruction.rl";
-
- main := (one_instruction
- @{
- switch (instruction.rm.disp_type) {
- case DISPNONE: instruction.rm.offset = 0; break;
- case DISP8: instruction.rm.offset = (int8_t) *disp; break;
- case DISP16: instruction.rm.offset =
- (int16_t) (disp[0] + 256U * disp[1]);
- break;
- case DISP32: instruction.rm.offset = (int32_t)
- (disp[0] + 256U * (disp[1] + 256U * (disp[2] + 256U * (disp[3]))));
- break;
- case DISP64: assert(FALSE);
- }
- switch (imm_operand) {
- case IMMNONE: instruction.imm[0] = 0; break;
- case IMM2: instruction.imm[0] = imm[0] & 0x03; break;
- case IMM8: instruction.imm[0] = imm[0]; break;
- case IMM16: instruction.imm[0] = (uint64_t) (*imm + 256U * (imm[1]));
- break;
- case IMM32: instruction.imm[0] = (uint64_t)
- (imm[0] + 256U * (imm[1] + 256U * (imm[2] + 256U * (imm[3]))));
- break;
- }
- switch (imm2_operand) {
- case IMMNONE: instruction.imm[1] = 0; break;
- case IMM2: instruction.imm[1] = imm2[0] & 0x03; break;
- case IMM8: instruction.imm[1] = imm2[0]; break;
- case IMM16: instruction.imm[1] = (uint64_t)
- (imm2[0] + 256U * (imm2[1]));
- break;
- case IMM32: instruction.imm[1] = (uint64_t)
- (imm2[0] + 256U * (imm2[1] + 256U * (imm2[2] + 256U * (imm2[3]))));
- break;
- }
- process_instruction(instruction_start, current_position+1, &instruction,
- userdata);
- instruction_start = current_position + 1;
- SET_DISP_TYPE(DISPNONE);
- SET_IMM_TYPE(IMMNONE);
- SET_IMM2_TYPE(IMMNONE);
- SET_DATA16_PREFIX(FALSE);
- SET_LOCK_PREFIX(FALSE);
- SET_REPNZ_PREFIX(FALSE);
- SET_REPZ_PREFIX(FALSE);
- SET_BRANCH_NOT_TAKEN(FALSE);
- SET_BRANCH_TAKEN(FALSE);
- SET_VEX_PREFIX3(0x00);
- })*
- $!{ process_error(current_position, userdata);
- result = FALSE;
- goto error_detected;
- };
-
-}%%
-
-%% write data;
-
-#define GET_VEX_PREFIX3() vex_prefix3
-#define SET_VEX_PREFIX3(P) vex_prefix3 = (P)
-#define SET_DATA16_PREFIX(S) instruction.prefix.data16 = (S)
-#define SET_LOCK_PREFIX(S) instruction.prefix.lock = (S)
-#define SET_REPZ_PREFIX(S) instruction.prefix.repz = (S)
-#define SET_REPNZ_PREFIX(S) instruction.prefix.repnz = (S)
-#define SET_BRANCH_TAKEN(S) instruction.prefix.branch_taken = (S)
-#define SET_BRANCH_NOT_TAKEN(S) instruction.prefix.branch_not_taken = (S)
-#define SET_INSTRUCTION_NAME(N) instruction.name = (N)
-#define GET_OPERAND_NAME(N) instruction.operands[(N)].name
-#define SET_OPERAND_NAME(N, S) instruction.operands[(N)].name = (S)
-#define SET_OPERAND_TYPE(N, S) instruction.operands[(N)].type = (S)
-#define SET_OPERANDS_COUNT(N) instruction.operands_count = (N)
-#define SET_MODRM_BASE(N) instruction.rm.base = (N)
-#define SET_MODRM_INDEX(N) instruction.rm.index = (N)
-#define SET_MODRM_SCALE(S) instruction.rm.scale = (S)
-#define SET_DISP_TYPE(T) instruction.rm.disp_type = (T)
-#define SET_DISP_PTR(P) disp = (P)
-#define SET_IMM_TYPE(T) imm_operand = (T)
-#define SET_IMM_PTR(P) imm = (P)
-#define SET_IMM2_TYPE(T) imm2_operand = (T)
-#define SET_IMM2_PTR(P) imm2 = (P)
-#define SET_CPU_FEATURE(F)
-
-enum {
- REX_B = 1,
- REX_X = 2,
- REX_R = 4,
- REX_W = 8
-};
-
-enum imm_mode {
- IMMNONE,
- IMM2,
- IMM8,
- IMM16,
- IMM32
-};
-
-int DecodeChunkIA32(const uint8_t *data, size_t size,
- process_instruction_func process_instruction,
- process_decoding_error_func process_error, void *userdata) {
- const uint8_t *current_position = data;
- const uint8_t *end_of_data = data + size;
- const uint8_t *disp = NULL;
- const uint8_t *imm = NULL;
- const uint8_t *imm2 = NULL;
- const uint8_t *instruction_start = current_position;
- uint8_t vex_prefix3 = 0x00;
- enum imm_mode imm_operand = IMMNONE;
- enum imm_mode imm2_operand = IMMNONE;
- struct instruction instruction;
- int result = TRUE;
-
- int current_state;
-
- /* Not used in ia32_mode. */
- instruction.prefix.rex = 0;
-
- SET_DISP_TYPE(DISPNONE);
- SET_IMM_TYPE(IMMNONE);
- SET_IMM2_TYPE(IMMNONE);
- SET_DATA16_PREFIX(FALSE);
- SET_LOCK_PREFIX(FALSE);
- SET_REPNZ_PREFIX(FALSE);
- SET_REPZ_PREFIX(FALSE);
- SET_BRANCH_NOT_TAKEN(FALSE);
- SET_BRANCH_TAKEN(FALSE);
-
- %% write init;
- %% write exec;
-
-error_detected:
- return result;
-}

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