Delete old x86 validator.

src/trusted/validator_x86/ncdis_segments.c

-/*
- * 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 NACL_TRUSTED_BUT_NOT_TCB
-#error("This file is not meant for use in the TCB")
-#endif
-
-#include "native_client/src/trusted/validator_x86/ncdis_segments.h"
-
-#include <string.h>
-
-#include "native_client/src/shared/platform/nacl_log.h"
-#include "native_client/src/trusted/validator/x86/decoder/nc_inst_iter.h"
-#include "native_client/src/trusted/validator/x86/decoder/nc_inst_state_internal.h"
-#include "native_client/src/trusted/validator/x86/decoder/ncop_exps.h"
-#include "native_client/src/trusted/validator_x86/ncdis_decode_tables.h"
-#include "native_client/src/trusted/validator/x86/ncval_reg_sfi/ncval_decode_tables.h"
-#include "native_client/src/trusted/validator/x86/ncval_seg_sfi/ncdecode_verbose.h"
-#include "native_client/src/trusted/validator/x86/nc_segment.h"
-
-/* Returns true if the disassemble flag is in the given flag set. */
-Bool NaClContainsDisasembleFlag(NaClDisassembleFlags flags,
-                                NaClDisassembleFlag flag) {
-  return NaClHasBit(flags, NACL_DISASSEMBLE_FLAG(flag)) ? TRUE : FALSE;
-}
-
-static const char* kHardCodedMessage = "[hard coded]";
-
-/* Inspect the parsed instruction to print out the opcode sequence matched. */
-static void NaClInstPrintOpcodeSeq(struct Gio* gout,
-                                   const NaClInstState* state) {
-  size_t count = 0;
-  if (state->num_opcode_bytes == 0) {
-    /* Hard coded bytes sequence for instruction. */
-    gprintf(gout, "  %s", kHardCodedMessage);
-    count = strlen(kHardCodedMessage) + 2;
-  } else {
-    /* Modeled instruction. Pull out parsed opcode bytes from parsed
-     * instruction.
-     */
-    int i;
-    gprintf(gout, " ");
-    count = 1;
-
-    /* Add prefix selector if applicable. */
-    if (state->opcode_prefix) {
-      gprintf(gout, " %02x", state->opcode_prefix);
-      count += 3;
-    }
-
-    /* Add opcode bytes. */
-    for (i = 0; i < state->num_opcode_bytes; ++i) {
-      gprintf(gout, " %02x", state->bytes.byte[state->num_prefix_bytes + i]);
-      count += 3;
-    }
-    if (state->inst->flags & NACL_IFLAG(OpcodeInModRm)) {
-      gprintf(gout, " / %d", modrm_opcode(state->modrm));
-      count += 4;
-    } else if (state->inst->flags & NACL_IFLAG(OpcodePlusR)) {
-      gprintf(gout, " - r%d",
-              NaClGetOpcodePlusR(state->inst->opcode_ext));
-      count += 5;
-    }
-    if (state->inst->flags & NACL_IFLAG(OpcodeInModRmRm)) {
-      gprintf(gout, " / %d", modrm_rm(state->modrm));
-      count += 4;
-    }
-    /* Add opcode for 0f0f instructions, where the opcode is the last
-     * byte of the instruction.
-     */
-    if ((state->num_opcode_bytes >= 2) &&
-        (0 == (state->inst->flags & NACL_IFLAG(Opcode0F0F))) &&
-        (0x0F == state->bytes.byte[state->num_prefix_bytes]) &&
-        (0x0F == state->bytes.byte[state->num_prefix_bytes + 1])) {
-      gprintf(gout, " %02x", state->bytes.byte[state->bytes.length - 1]);
-      count += 3;
-    }
-  }
-  while (count < 30) {
-    gprintf(gout, " ");
-    ++count;
-  }
-}
-
-/* Disassemble the code segment, using the given decoder tables.
- * Note: The decoder tables specified in the flags argument will
- * be ignored.
- *
- * Parameters:
- *    mbase - Memory region containing code segment.
- *    vbase - PC address associated with first byte of memory region.
- *    size - Number of bytes in memory region.
- *    flags - Flags to use when decoding.
- */
-static void NaClDisassembleSegmentUsingTables(
-    uint8_t* mbase, NaClPcAddress vbase,
-    NaClMemorySize size, NaClDisassembleFlags flags,
-    const struct NaClDecodeTables* decoder_tables)  {
-  NaClSegment segment;
-  NaClInstIter* iter;
-  struct Gio* gout = NaClLogGetGio();
-  Bool print_internals =
-      NaClHasBit(flags, NACL_DISASSEMBLE_FLAG(NaClDisassembleAddInternals));
-  NaClSegmentInitialize(mbase, vbase, size, &segment);
-  iter = NaClInstIterCreate(decoder_tables, &segment);
-  if (NULL == iter) {
-    gprintf(gout, "Error: not enough memory\n");
-  } else {
-    for (; NaClInstIterHasNext(iter); NaClInstIterAdvance(iter)) {
-      NaClInstState* state = NaClInstIterGetState(iter);
-      NaClInstStateInstPrint(gout, state);
-      if (print_internals) {
-        NaClInstPrintOpcodeSeq(gout, state);
-        NaClInstPrint(gout, state->decoder_tables, NaClInstStateInst(state));
-        NaClExpVectorPrint(gout, state);
-      }
-    }
-    NaClInstIterDestroy(iter);
-  }
-}
-
-void NaClDisassembleSegment(uint8_t* mbase, NaClPcAddress vbase,
-                            NaClMemorySize size, NaClDisassembleFlags flags) {
-  if (NaClHasBit(flags, NACL_DISASSEMBLE_FLAG(NaClDisassembleFull))) {
-    if (NaClHasBit(flags,
-                   NACL_DISASSEMBLE_FLAG(NaClDisassembleValidatorDecoder))) {
-      gprintf(NaClLogGetGio(),
-              "Error: can't specify both full and validator disassembly,\n"
-              "       assuming full disassembly.\n");
-    }
-    NaClDisassembleSegmentUsingTables(mbase, vbase, size, flags,
-                                      kNaClDecoderTables);
-  } else if (NaClHasBit
-             (flags,
-              NACL_DISASSEMBLE_FLAG(NaClDisassembleValidatorDecoder))) {
-    if (64 == NACL_TARGET_SUBARCH) {
-      NaClDisassembleSegmentUsingTables(mbase, vbase, size, flags,
-                                        kNaClValDecoderTables);
-    } else {
-      NCDecodeSegment(mbase, vbase, size);
-    }
-  } else {
-    gprintf(NaClLogGetGio(),
-            "Error: No decoder tables specified, can't disassemble\n");
-  }
-}