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
|
#include "bolt/Core/BinaryContext.h"
#include "llvm/BinaryFormat/ELF.h"
#include "llvm/DebugInfo/DWARF/DWARFContext.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Support/TargetSelect.h"
#include "gtest/gtest.h"
using namespace llvm;
using namespace llvm::object;
using namespace llvm::ELF;
using namespace bolt;
namespace {
struct BinaryContextTester : public testing::TestWithParam<Triple::ArchType> {
void SetUp() override {
initalizeLLVM();
prepareElf();
initializeBOLT();
}
protected:
void initalizeLLVM() {
llvm::InitializeAllTargetInfos();
llvm::InitializeAllTargetMCs();
llvm::InitializeAllAsmParsers();
llvm::InitializeAllDisassemblers();
llvm::InitializeAllTargets();
llvm::InitializeAllAsmPrinters();
}
void prepareElf() {
memcpy(ElfBuf, "\177ELF", 4);
ELF64LE::Ehdr *EHdr = reinterpret_cast<typename ELF64LE::Ehdr *>(ElfBuf);
EHdr->e_ident[llvm::ELF::EI_CLASS] = llvm::ELF::ELFCLASS64;
EHdr->e_ident[llvm::ELF::EI_DATA] = llvm::ELF::ELFDATA2LSB;
EHdr->e_machine = GetParam() == Triple::aarch64 ? EM_AARCH64 : EM_X86_64;
MemoryBufferRef Source(StringRef(ElfBuf, sizeof(ElfBuf)), "ELF");
ObjFile = cantFail(ObjectFile::createObjectFile(Source));
}
void initializeBOLT() {
BC = cantFail(BinaryContext::createBinaryContext(
ObjFile.get(), true, DWARFContext::create(*ObjFile.get())));
ASSERT_FALSE(!BC);
}
char ElfBuf[sizeof(typename ELF64LE::Ehdr)] = {};
std::unique_ptr<ObjectFile> ObjFile;
std::unique_ptr<BinaryContext> BC;
};
} // namespace
#ifdef X86_AVAILABLE
INSTANTIATE_TEST_SUITE_P(X86, BinaryContextTester,
::testing::Values(Triple::x86_64));
#endif
#ifdef AARCH64_AVAILABLE
INSTANTIATE_TEST_SUITE_P(AArch64, BinaryContextTester,
::testing::Values(Triple::aarch64));
#endif
TEST_P(BinaryContextTester, BaseAddress) {
// Check that base address calculation is correct for a binary with the
// following segment layout:
BC->SegmentMapInfo[0] = SegmentInfo{0, 0x10e8c2b4, 0, 0x10e8c2b4, 0x1000};
BC->SegmentMapInfo[0x10e8d2b4] =
SegmentInfo{0x10e8d2b4, 0x3952faec, 0x10e8c2b4, 0x3952faec, 0x1000};
BC->SegmentMapInfo[0x4a3bddc0] =
SegmentInfo{0x4a3bddc0, 0x148e828, 0x4a3bbdc0, 0x148e828, 0x1000};
BC->SegmentMapInfo[0x4b84d5e8] =
SegmentInfo{0x4b84d5e8, 0x294f830, 0x4b84a5e8, 0x3d3820, 0x1000};
Optional<uint64_t> BaseAddress =
BC->getBaseAddressForMapping(0x7f13f5556000, 0x10e8c000);
ASSERT_TRUE(BaseAddress.hasValue());
ASSERT_EQ(*BaseAddress, 0x7f13e46c9000ULL);
BaseAddress = BC->getBaseAddressForMapping(0x7f13f5556000, 0x137a000);
ASSERT_FALSE(BaseAddress.hasValue());
}
|
