src/trusted/validator/x86/decoder/ncopcode_desc.c - Issue 625923004: Delete old x86 validator.

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Issue 625923004: Delete old x86 validator. (Closed) Base URL: svn://svn.chromium.org/native_client/trunk/src/native_client

Patch Set: Created 6 years, 2 months ago

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1 /*

2 * Copyright (c) 2011 The Native Client Authors. All rights reserved.

3 * Use of this source code is governed by a BSD-style license that can be

4 * found in the LICENSE file.

5 */

6

7 /* Descriptors to model instructions, opcodes, and instruction operands. */

8

9 #include "native_client/src/trusted/validator/x86/decoder/ncopcode_desc.h"

10

11 #include <assert.h>

12 #include <string.h>

13

14 #include "native_client/src/shared/utils/types.h"

15 #include "native_client/src/trusted/validator/x86/decoder/gen/ncopcode_prefix_im pl.h"

16 #include "native_client/src/trusted/validator/x86/decoder/gen/ncopcode_insts_imp l.h"

17 #include "native_client/src/trusted/validator/x86/decoder/gen/ncopcode_opcode_fl ags_impl.h"

18 #include "native_client/src/trusted/validator/x86/decoder/gen/ncopcode_operand_k ind_impl.h"

19 #include "native_client/src/trusted/validator/x86/decoder/gen/ncopcode_operand_f lag_impl.h"

20 #include "native_client/src/trusted/validator/x86/decoder/nc_decode_tables.h"

21

22 #include "native_client/src/trusted/validator/x86/decoder/ncopcode_desc_inl.c"

23

24 uint8_t NaClGetOpcodeInModRm(uint8_t opcode_ext) {

25 return opcode_ext & 0x0F;

26 }

27

28 uint8_t NaClGetOpcodeInModRmRm(uint8_t opcode_ext) {

29 return (opcode_ext >> 4) & 0x0F;

30 }

31

32 uint8_t NaClGetOpcodePlusR(uint8_t opcode_ext) {

33 return opcode_ext & 0x0F;

34 }

35

36 uint8_t NaClGetInstNumberOperands(const NaClInst* inst) {

37 return NaClGetInstNumberOperandsInline(inst);

38 }

39

40 const NaClOp* NaClGetInstOperand(const NaClDecodeTables* tables,

41 const NaClInst* inst, uint8_t index) {

42 return NaClGetInstOperandInline(tables, inst, index);

43 }

44

45 /* Print out the opcode operand flags in a simplified (i.e. more human readable)

46 * form.

47 */

48 void NaClOpFlagsPrint(struct Gio* f, NaClOpFlags flags) {

49 NaClOpFlag i;

50 Bool first = TRUE;

51 for (i = 0; i < NaClOpFlagEnumSize; ++i) {

52 if (flags & NACL_OPFLAG(i)) {

53 if (first) {

54 first = FALSE;

55 } else {

56 gprintf(f, " ");

57 }

58 gprintf(f, "%s", NaClOpFlagName(i));

59 }

60 }

61 }

62

63 /* Print out the opcode operand in a simplified (i.e. more human readable)

64 * form.

65 */

66 void NaClOpPrint(struct Gio* f, const NaClOp* operand) {

67 gprintf(f, "%s", NaClOpKindName(operand->kind));

68 if (operand->flags) {

69 size_t i;

70 for (i = strlen(NaClOpKindName(operand->kind)); i < 24; ++i) {

71 gprintf(f, " ");

72 }

73 NaClOpFlagsPrint(f, operand->flags);

74 }

75 gprintf(f, "\n");

76 }

77

78 /* Print instruction flags using a simplified (i.e. more human readable) form */

79 void NaClIFlagsPrint(struct Gio* f, NaClIFlags flags) {

80 int i;

81 Bool first = TRUE;

82 for (i = 0; i < NaClIFlagEnumSize; ++i) {

83 if (flags & NACL_IFLAG(i)) {

84 if (first) {

85 first = FALSE;

86 } else {

87 gprintf(f, " ");

88 }

89 gprintf(f, "%s", NaClIFlagName(i));

90 }

91 }

92 }

93

94 /* Returns a string defining bytes of the given prefix that are considered

95 * prefix bytes, independent of the opcode.

96 */

97 const char* OpcodePrefixBytes(NaClInstPrefix prefix) {

98 switch(prefix) {

99 case NoPrefix:

100 case Prefix0F:

101 case Prefix0F0F:

102 case Prefix0F38:

103 case Prefix0F3A:

104 case PrefixD8:

105 case PrefixD9:

106 case PrefixDA:

107 case PrefixDB:

108 case PrefixDC:

109 case PrefixDD:

110 case PrefixDE:

111 case PrefixDF:

112 default: /* This shouldn't happen, but be safe. */

113 return "";

114 case PrefixF20F:

115 case PrefixF20F38:

116 return "f2";

117 case PrefixF30F:

118 return "f3";

119 case Prefix660F:

120 case Prefix660F38:

121 case Prefix660F3A:

122 return "66";

123 }

124 }

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