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[chromium-blink-merge.git] / courgette / disassembler_elf_32_x86_unittest.cc
blobd48bc4f2a9b2490f8945707ae7465b42bd5e54f3
1 // Copyright (c) 2011 The Chromium 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.
5 #include "courgette/assembly_program.h"
6 #include "courgette/base_test_unittest.h"
7 #include "courgette/disassembler_elf_32_x86.h"
9 class DisassemblerElf32X86Test : public BaseTest {
10 public:
12 void TestExe(const char* file_name,
13 size_t expected_abs_count,
14 size_t expected_rel_count) const;
17 void DisassemblerElf32X86Test::TestExe(const char* file_name,
18 size_t expected_abs_count,
19 size_t expected_rel_count) const {
20 std::string file1 = FileContents(file_name);
22 scoped_ptr<courgette::DisassemblerElf32X86> disassembler(
23 new courgette::DisassemblerElf32X86(file1.c_str(), file1.length()));
25 bool can_parse_header = disassembler->ParseHeader();
26 EXPECT_TRUE(can_parse_header);
27 EXPECT_TRUE(disassembler->ok());
29 // The length of the disassembled value will be slightly smaller than the
30 // real file, since trailing debug info is not included
31 EXPECT_EQ(file1.length(), disassembler->length());
33 const uint8* offset_p = disassembler->OffsetToPointer(0);
34 EXPECT_EQ(reinterpret_cast<const void*>(file1.c_str()),
35 reinterpret_cast<const void*>(offset_p));
36 EXPECT_EQ(0x7F, offset_p[0]);
37 EXPECT_EQ('E', offset_p[1]);
38 EXPECT_EQ('L', offset_p[2]);
39 EXPECT_EQ('F', offset_p[3]);
41 courgette::AssemblyProgram* program =
42 new courgette::AssemblyProgram(courgette::EXE_ELF_32_X86);
44 EXPECT_TRUE(disassembler->Disassemble(program));
46 EXPECT_EQ(disassembler->Abs32Locations().size(), expected_abs_count);
47 EXPECT_EQ(disassembler->Rel32Locations().size(), expected_rel_count);
49 // Prove that none of the rel32 RVAs overlap with abs32 RVAs
50 std::set<courgette::RVA> abs(disassembler->Abs32Locations().begin(),
51 disassembler->Abs32Locations().end());
52 std::set<courgette::DisassemblerElf32::TypedRVA*>
53 rel(disassembler->Rel32Locations().begin(),
54 disassembler->Rel32Locations().end());
55 for (std::vector<courgette::DisassemblerElf32::TypedRVA*>::iterator
56 rel32 = disassembler->Rel32Locations().begin();
57 rel32 != disassembler->Rel32Locations().end();
58 rel32++) {
59 EXPECT_TRUE(abs.find((*rel32)->rva()) == abs.end());
62 for (std::vector<courgette::RVA>::iterator abs32 =
63 disassembler->Abs32Locations().begin();
64 abs32 != disassembler->Abs32Locations().end();
65 abs32++) {
66 bool found = false;
67 for (std::vector<courgette::DisassemblerElf32::TypedRVA*>::iterator
68 rel32 = disassembler->Rel32Locations().begin();
69 rel32 != disassembler->Rel32Locations().end();
70 rel32++) {
71 if (*abs32 == (*rel32)->rva()) {
72 found = true;
73 break;
76 EXPECT_TRUE(!found);
78 delete program;
81 TEST_F(DisassemblerElf32X86Test, All) {
82 TestExe("elf-32-1", 200, 3442);