1 # Copyright 2016 the V8 project authors. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import StringIO 6 import unittest 7 import linux_perf_bytecode_annotate as bytecode_annotate 8 9 10 PERF_SCRIPT_OUTPUT = """ 11 # This line is a comment 12 # This should be ignored too 13 # 14 # cdefab01 aRandomSymbol::Name(to, be, ignored) 15 16 00000000 firstSymbol 17 00000123 secondSymbol 18 19 01234567 foo 20 abcdef76 BytecodeHandler:bar+0x12 21 76543210 baz 22 abcdef76 BytecodeHandler:bar+0x16 23 76543210 baz 24 25 01234567 foo 26 abcdef76 BytecodeHandler:foo+0x1 27 76543210 baz 28 abcdef76 BytecodeHandler:bar+0x2 29 76543210 bar 30 31 abcdef76 BytecodeHandler:bar+0x19 32 33 abcdef76 BytecodeHandler:bar+0x12 34 35 abcdef76 BytecodeHandler:bar+0x12 36 """ 37 38 39 D8_CODEGEN_OUTPUT = """ 40 kind = BYTECODE_HANDLER 41 name = foo 42 compiler = turbofan 43 Instructions (size = 3) 44 0x3101394a3c0 0 55 push rbp 45 0x3101394a3c1 1 ffe3 jmp rbx 46 47 kind = BYTECODE_HANDLER 48 name = bar 49 compiler = turbofan 50 Instructions (size = 5) 51 0x3101394b3c0 0 55 push rbp 52 0x3101394b3c1 1 4883c428 REX.W addq rsp,0x28 53 # Unexpected comment 54 0x3101394b3c5 5 ffe3 jmp rbx 55 56 kind = BYTECODE_HANDLER 57 name = baz 58 compiler = turbofan 59 Instructions (size = 5) 60 0x3101394c3c0 0 55 push rbp 61 0x3101394c3c1 1 4883c428 REX.W addq rsp,0x28 62 0x3101394c3c5 5 ffe3 jmp rbx 63 """ 64 65 66 class LinuxPerfBytecodeAnnotateTest(unittest.TestCase): 67 68 def test_bytecode_offset_generator(self): 69 perf_stream = StringIO.StringIO(PERF_SCRIPT_OUTPUT) 70 offsets = list( 71 bytecode_annotate.bytecode_offset_generator(perf_stream, "bar")) 72 self.assertListEqual(offsets, [18, 25, 18, 18]) 73 74 def test_bytecode_disassembly_generator(self): 75 codegen_stream = StringIO.StringIO(D8_CODEGEN_OUTPUT) 76 disassembly = list( 77 bytecode_annotate.bytecode_disassembly_generator(codegen_stream, "bar")) 78 self.assertListEqual(disassembly, [ 79 "0x3101394b3c0 0 55 push rbp", 80 "0x3101394b3c1 1 4883c428 REX.W addq rsp,0x28", 81 "0x3101394b3c5 5 ffe3 jmp rbx"]) 82 83 84 if __name__ == "__main__": 85 unittest.main() 86
