Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(241)

Unified Diff: src/trusted/validator_ragel/unreviewed/decoder_x86_64.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
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: src/trusted/validator_ragel/unreviewed/decoder_x86_64.rl
===================================================================
--- src/trusted/validator_ragel/unreviewed/decoder_x86_64.rl (revision 9911)
+++ src/trusted/validator_ragel/unreviewed/decoder_x86_64.rl (working copy)
@@ -1,216 +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/include/elf32.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_64_instruction_consts.h"
-
-%%{
- machine x86_64_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 rex_actions
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include rex_parsing
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include vex_actions_amd64
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include vex_parsing_amd64
- "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_amd64
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include modrm_parsing_amd64
- "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
- include operand_actions_amd64
- "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_amd64
- "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_64 "decoder_x86_64_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 =
- (uint16_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: instruction.rm.offset = (int64_t)
- (*disp + 256ULL * (disp[1] + 256ULL * (disp[2] + 256ULL * (disp[3] +
- 256ULL * (disp[4] + 256ULL * (disp[5] + 256ULL * (disp[6] + 256ULL *
- disp[7])))))));
- break;
- }
- 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;
- case IMM64: instruction.imm[0] = (uint64_t)
- (imm[0] + 256LL * (imm[1] + 256ULL * (imm[2] + 256ULL * (imm[3] +
- 256ULL * (imm[4] + 256ULL * (imm[5] + 256ULL * (imm[6] + 256ULL *
- imm[7])))))));
- 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;
- case IMM64: instruction.imm[1] = (uint64_t)
- (*imm2 + 256ULL * (imm2[1] + 256ULL * (imm2[2] + 256ULL * (imm2[3] +
- 256ULL * (imm2[4] + 256ULL * (imm2[5] + 256ULL * (imm2[6] + 256ULL *
- imm2[7])))))));
- 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_REX_PREFIX(FALSE);
- 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_PREFIX2(0xe0);
- SET_VEX_PREFIX3(0x00);
- })*
- $!{ process_error(current_position, userdata);
- result = FALSE;
- goto error_detected;
- };
-
-}%%
-
-%% write data;
-
-#define GET_REX_PREFIX() instruction.prefix.rex
-#define SET_REX_PREFIX(P) instruction.prefix.rex = (P)
-#define GET_VEX_PREFIX2() vex_prefix2
-#define SET_VEX_PREFIX2(P) vex_prefix2 = (P)
-#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,
- IMM64
-};
-
-int DecodeChunkAMD64(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_prefix2 = 0xe0;
- 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;
-
- SET_DISP_TYPE(DISPNONE);
- SET_IMM_TYPE(IMMNONE);
- SET_IMM2_TYPE(IMMNONE);
- SET_REX_PREFIX(FALSE);
- 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;
-}

Powered by Google App Engine
This is Rietveld 408576698