src/trusted/validator_x86/testdata/32/tls.test - 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: rebase master Created 6 years, 2 months ago

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1 @hex:

2 # Test valid TLS access commands.

3 # mov %gs:0, %eax

4 65 a1 00 00 00 00

5 # mov %gs:4, %eax

6 65 a1 04 00 00 00

7 @nval:

8 * <input> is safe *

9 @dis:

10 00000000: 65 a1 00 00 00 00 mov %eax, %gs:[0x0]

11 00000006: 65 a1 04 00 00 00 mov %eax, %gs:[0x4]

12 @rdfa_output:

13 return code: 0

14 ----------------------------------------------------------------------

15 @hex:

16 # Access with something besides 'mov'

17 # add %gs:0, %eax

18 65 03 05 00 00 00 00

19 @nval:

20 VALIDATOR: 0: Bad prefix usage

21 * <input> IS UNSAFE *

22 @dis:

23 00000000: 65 03 05 00 00 00 00 add %eax, 0x0

24 @rdfa_output:

25 0: [0] unrecognized instruction

26 return code: 1

27 ----------------------------------------------------------------------

28 @hex:

29 # Forbidden forms

30 # mov %gs:0, %ax

31 65 66 a1 00 00 00 00

32 # mov %ax, %gs:0

33 65 66 a3 00 00 00 00

34 # lock add %gs:0x0,%eax

35 65 F0 03 05 00 00 00 00

36 @nval:

37 VALIDATOR: 0: Bad prefix usage

38 VALIDATOR: 7: Bad prefix usage

39 VALIDATOR: e: Bad prefix usage

40 * <input> IS UNSAFE *

41 @dis:

42 00000000: 65 66 a1 00 00 00 00 mov %ax, %gs:[0x0]

43 00000007: 65 66 a3 00 00 00 00 mov %gs:[0x0], %ax

44 0000000e: 65 f0 03 05 00 00 00 00 invalid %eax, 0x0

45 @rdfa_output:

46 0: [0] unrecognized instruction

47 7: [1] unrecognized instruction

48 e: [2] unrecognized instruction

49 return code: 1

50 ----------------------------------------------------------------------

51 @hex:

52 # Access through fs.

53 # mov %fs:0, %eax

54 64 a1 00 00 00 00

55 # mov %eax, %fs:0

56 64 a3 00 00 00 00

57 # mov %fs:0, %ax

58 64 66 a1 00 00 00 00

59 # mov %ax, %fs:0

60 64 66 a3 00 00 00 00

61 @nval:

62 VALIDATOR: 0: Bad prefix usage

63 VALIDATOR: 6: Bad prefix usage

64 VALIDATOR: c: Bad prefix usage

65 VALIDATOR: 13: Bad prefix usage

66 * <input> IS UNSAFE *

67 @dis:

68 00000000: 64 a1 00 00 00 00 mov %eax, %fs:[0x0]

69 00000006: 64 a3 00 00 00 00 mov %fs:[0x0], %eax

70 0000000c: 64 66 a1 00 00 00 00 mov %ax, %fs:[0x0]

71 00000013: 64 66 a3 00 00 00 00 mov %fs:[0x0], %ax

72 @rdfa_output:

73 0: [0] unrecognized instruction

74 6: [1] unrecognized instruction

75 c: [2] unrecognized instruction

76 13: [3] unrecognized instruction

77 return code: 1

78 ----------------------------------------------------------------------

79 @hex:

80 # Can we write to gs segment?

81 # mov %eax, %gs:0

82 65 a3 00 00 00 00

83 @nval:

84 * <input> is safe *

85 @dis:

86 00000000: 65 a3 00 00 00 00 mov %gs:[0x0], %eax

87 @rdfa_output:

88 0: [0] unrecognized instruction

89 return code: 1

90 @validators_disagree:

91 gs segment should be read-only, but old validator does not enforce that.

92 See http://code.google.com/p/nativeclient/issues/detail?id=2250

93 ----------------------------------------------------------------------

94 @hex:

95 # Fixed offsets besides 0 and 4

96 # mov %gs:3, %eax

97 65 a1 03 00 00 00

98 # mov %gs:8, %eax

99 65 a1 08 00 00 00

100

101 # Can we read from arbitrary offset?

102 # mov %gs:%eax, %eax

103 65 8B 00

104 @nval:

105 * <input> is safe *

106 @dis:

107 00000000: 65 a1 03 00 00 00 mov %eax, %gs:[0x3]

108 00000006: 65 a1 08 00 00 00 mov %eax, %gs:[0x8]

109 0000000c: 65 8b 00 mov %eax, %gs:[%eax]

110 @rdfa_output:

111 0: [0] unrecognized instruction

112 6: [1] unrecognized instruction

113 c: [2] unrecognized instruction

114 return code: 1

115 @validators_disagree:

116 gs is only supposed to be read at offsets 0 and 4, but old validator does not

117 enforce that.

118 See http://code.google.com/p/nativeclient/issues/detail?id=2250

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