1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
# Copyright 2016 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import StringIO
import unittest
import linux_perf_bytecode_annotate as bytecode_annotate
PERF_SCRIPT_OUTPUT = """
# This line is a comment
# This should be ignored too
#
# cdefab01 aRandomSymbol::Name(to, be, ignored)
00000000 firstSymbol
00000123 secondSymbol
01234567 foo
abcdef76 BytecodeHandler:bar+0x12
76543210 baz
abcdef76 BytecodeHandler:bar+0x16
76543210 baz
01234567 foo
abcdef76 BytecodeHandler:foo+0x1
76543210 baz
abcdef76 BytecodeHandler:bar+0x2
76543210 bar
abcdef76 BytecodeHandler:bar+0x19
abcdef76 BytecodeHandler:bar+0x12
abcdef76 BytecodeHandler:bar+0x12
"""
D8_CODEGEN_OUTPUT = """
kind = BYTECODE_HANDLER
name = foo
compiler = turbofan
Instructions (size = 3)
0x3101394a3c0 0 55 push rbp
0x3101394a3c1 1 ffe3 jmp rbx
kind = BYTECODE_HANDLER
name = bar
compiler = turbofan
Instructions (size = 5)
0x3101394b3c0 0 55 push rbp
0x3101394b3c1 1 4883c428 REX.W addq rsp,0x28
# Unexpected comment
0x3101394b3c5 5 ffe3 jmp rbx
kind = BYTECODE_HANDLER
name = baz
compiler = turbofan
Instructions (size = 5)
0x3101394c3c0 0 55 push rbp
0x3101394c3c1 1 4883c428 REX.W addq rsp,0x28
0x3101394c3c5 5 ffe3 jmp rbx
"""
class LinuxPerfBytecodeAnnotateTest(unittest.TestCase):
def test_bytecode_offset_generator(self):
perf_stream = StringIO.StringIO(PERF_SCRIPT_OUTPUT)
offsets = list(
bytecode_annotate.bytecode_offset_generator(perf_stream, "bar"))
self.assertListEqual(offsets, [18, 25, 18, 18])
def test_bytecode_disassembly_generator(self):
codegen_stream = StringIO.StringIO(D8_CODEGEN_OUTPUT)
disassembly = list(
bytecode_annotate.bytecode_disassembly_generator(codegen_stream, "bar"))
self.assertListEqual(disassembly, [
"0x3101394b3c0 0 55 push rbp",
"0x3101394b3c1 1 4883c428 REX.W addq rsp,0x28",
"0x3101394b3c5 5 ffe3 jmp rbx"])
if __name__ == "__main__":
unittest.main()
|
