| Index: src/trusted/validator_ragel/decoder_x86_64.rl
|
| ===================================================================
|
| --- src/trusted/validator_ragel/decoder_x86_64.rl (revision 9911)
|
| +++ src/trusted/validator_ragel/decoder_x86_64.rl (working copy)
|
| @@ -12,7 +12,7 @@
|
|
|
| #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/decoder_internal.h"
|
|
|
| #include "native_client/src/trusted/validator_ragel/gen/decoder_x86_64_instruction_consts.h"
|
|
|
| @@ -61,138 +61,26 @@
|
|
|
| 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;
|
| - };
|
| + include decoder
|
| + "native_client/src/trusted/validator_ragel/unreviewed/parse_instruction.rl";
|
|
|
| + main := decoder;
|
| }%%
|
|
|
| %% 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,
|
| + ProcessInstructionFunc process_instruction,
|
| + ProcessDecodingErrorFunc 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;
|
| + enum ImmediateMode imm_operand = IMMNONE;
|
| + enum ImmediateMode imm2_operand = IMMNONE;
|
| + struct Instruction instruction;
|
| int result = TRUE;
|
|
|
| int current_state;
|
|
|