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1 // Copyright 2011 the V8 project authors. All rights reserved. | |
2 // Redistribution and use in source and binary forms, with or without | |
3 // modification, are permitted provided that the following conditions are | |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | |
28 #include "src/assembler.h" | |
29 #include "src/macro-assembler.h" | |
30 #include "test/cctest/cctest.h" | |
31 | |
32 namespace v8 { | |
33 namespace internal { | |
34 | |
35 static void WriteRinfo(RelocInfoWriter* writer, | |
36 byte* pc, RelocInfo::Mode mode, intptr_t data) { | |
37 RelocInfo rinfo(CcTest::i_isolate(), pc, mode, data, NULL); | |
38 writer->Write(&rinfo); | |
39 } | |
40 | |
41 | |
42 // Tests that writing both types of positions and then reading either | |
43 // or both works as expected. | |
44 TEST(Positions) { | |
45 CcTest::InitializeVM(); | |
46 const int code_size = 10 * KB; | |
47 int relocation_info_size = 10 * KB; | |
48 const int buffer_size = code_size + relocation_info_size; | |
49 v8::base::SmartArrayPointer<byte> buffer(new byte[buffer_size]); | |
50 | |
51 byte* pc = buffer.get(); | |
52 byte* buffer_end = buffer.get() + buffer_size; | |
53 | |
54 RelocInfoWriter writer(buffer_end, pc); | |
55 byte* relocation_info_end = buffer_end - relocation_info_size; | |
56 for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { | |
57 RelocInfo::Mode mode = (i % 2 == 0) ? | |
58 RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; | |
59 if (mode == RelocInfo::STATEMENT_POSITION) { | |
60 printf("TEST WRITING STATEMENT %p %d\n", static_cast<void*>(pc), pos); | |
61 } else { | |
62 printf("TEST WRITING POSITION %p %d\n", static_cast<void*>(pc), pos); | |
63 } | |
64 WriteRinfo(&writer, pc, mode, pos); | |
65 CHECK(writer.pos() - RelocInfoWriter::kMaxSize >= relocation_info_end); | |
66 } | |
67 | |
68 writer.Finish(); | |
69 relocation_info_size = static_cast<int>(buffer_end - writer.pos()); | |
70 MacroAssembler assm(CcTest::i_isolate(), nullptr, 0, CodeObjectRequired::kNo); | |
71 CodeDesc desc = { | |
72 buffer.get(), buffer_size, code_size, relocation_info_size, 0, | |
73 nullptr, 0, &assm}; | |
74 | |
75 // Read only (non-statement) positions. | |
76 { | |
77 RelocIterator it(desc, RelocInfo::ModeMask(RelocInfo::POSITION)); | |
78 pc = buffer.get(); | |
79 for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { | |
80 printf("TESTING 1: %d\n", i); | |
81 RelocInfo::Mode mode = (i % 2 == 0) ? | |
82 RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; | |
83 if (mode == RelocInfo::POSITION) { | |
84 CHECK_EQ(pc, it.rinfo()->pc()); | |
85 CHECK_EQ(mode, it.rinfo()->rmode()); | |
86 CHECK_EQ(pos, static_cast<int>(it.rinfo()->data())); | |
87 it.next(); | |
88 } | |
89 } | |
90 CHECK(it.done()); | |
91 } | |
92 | |
93 // Read only statement positions. | |
94 { | |
95 RelocIterator it(desc, RelocInfo::ModeMask(RelocInfo::STATEMENT_POSITION)); | |
96 pc = buffer.get(); | |
97 for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { | |
98 RelocInfo::Mode mode = (i % 2 == 0) ? | |
99 RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; | |
100 if (mode == RelocInfo::STATEMENT_POSITION) { | |
101 CHECK_EQ(pc, it.rinfo()->pc()); | |
102 CHECK_EQ(mode, it.rinfo()->rmode()); | |
103 CHECK_EQ(pos, static_cast<int>(it.rinfo()->data())); | |
104 it.next(); | |
105 } | |
106 } | |
107 CHECK(it.done()); | |
108 } | |
109 | |
110 // Read both types of positions. | |
111 { | |
112 RelocIterator it(desc, RelocInfo::kPositionMask); | |
113 pc = buffer.get(); | |
114 for (int i = 0, pos = 0; i < 100; i++, pc += i, pos += i) { | |
115 RelocInfo::Mode mode = (i % 2 == 0) ? | |
116 RelocInfo::STATEMENT_POSITION : RelocInfo::POSITION; | |
117 CHECK_EQ(pc, it.rinfo()->pc()); | |
118 CHECK_EQ(mode, it.rinfo()->rmode()); | |
119 CHECK_EQ(pos, static_cast<int>(it.rinfo()->data())); | |
120 it.next(); | |
121 } | |
122 CHECK(it.done()); | |
123 } | |
124 } | |
125 | |
126 } // namespace internal | |
127 } // namespace v8 | |
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