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#include "llvm/ProfileData/MemProf.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/DebugInfo/DIContext.h"
#include "llvm/DebugInfo/Symbolize/SymbolizableModule.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/ProfileData/InstrProf.h"
#include "llvm/ProfileData/MemProfData.inc"
#include "llvm/ProfileData/RawMemProfReader.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/MD5.h"
#include "llvm/Support/raw_ostream.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include <initializer_list>
namespace {
using ::llvm::DIGlobal;
using ::llvm::DIInliningInfo;
using ::llvm::DILineInfo;
using ::llvm::DILineInfoSpecifier;
using ::llvm::DILocal;
using ::llvm::memprof::CallStackMap;
using ::llvm::memprof::MemInfoBlock;
using ::llvm::memprof::MemProfRecord;
using ::llvm::memprof::MemProfSchema;
using ::llvm::memprof::Meta;
using ::llvm::memprof::PortableMemInfoBlock;
using ::llvm::memprof::RawMemProfReader;
using ::llvm::memprof::SegmentEntry;
using ::llvm::object::SectionedAddress;
using ::llvm::symbolize::SymbolizableModule;
using ::testing::Return;
class MockSymbolizer : public SymbolizableModule {
public:
MOCK_CONST_METHOD3(symbolizeInlinedCode,
DIInliningInfo(SectionedAddress, DILineInfoSpecifier,
bool));
// Most of the methods in the interface are unused. We only mock the
// method that we expect to be called from the memprof reader.
virtual DILineInfo symbolizeCode(SectionedAddress, DILineInfoSpecifier,
bool) const {
llvm_unreachable("unused");
}
virtual DIGlobal symbolizeData(SectionedAddress) const {
llvm_unreachable("unused");
}
virtual std::vector<DILocal> symbolizeFrame(SectionedAddress) const {
llvm_unreachable("unused");
}
virtual bool isWin32Module() const { llvm_unreachable("unused"); }
virtual uint64_t getModulePreferredBase() const {
llvm_unreachable("unused");
}
};
struct MockInfo {
std::string FunctionName;
uint32_t Line;
uint32_t StartLine;
uint32_t Column;
};
DIInliningInfo makeInliningInfo(std::initializer_list<MockInfo> MockFrames) {
DIInliningInfo Result;
for (const auto &Item : MockFrames) {
DILineInfo Frame;
Frame.FunctionName = Item.FunctionName;
Frame.Line = Item.Line;
Frame.StartLine = Item.StartLine;
Frame.Column = Item.Column;
Result.addFrame(Frame);
}
return Result;
}
llvm::SmallVector<SegmentEntry, 4> makeSegments() {
llvm::SmallVector<SegmentEntry, 4> Result;
// Mimic an entry for a non position independent executable.
Result.emplace_back(0x0, 0x40000, 0x0);
return Result;
}
const DILineInfoSpecifier specifier() {
return DILineInfoSpecifier(
DILineInfoSpecifier::FileLineInfoKind::RawValue,
DILineInfoSpecifier::FunctionNameKind::LinkageName);
}
MATCHER_P4(FrameContains, Function, LineOffset, Column, Inline, "") {
const std::string ExpectedHash = std::to_string(llvm::MD5Hash(Function));
if (arg.Function != ExpectedHash) {
*result_listener << "Hash mismatch";
return false;
}
if (arg.LineOffset == LineOffset && arg.Column == Column &&
arg.IsInlineFrame == Inline) {
return true;
}
*result_listener << "LineOffset, Column or Inline mismatch";
return false;
}
MemProfSchema getFullSchema() {
MemProfSchema Schema;
#define MIBEntryDef(NameTag, Name, Type) Schema.push_back(Meta::Name);
#include "llvm/ProfileData/MIBEntryDef.inc"
#undef MIBEntryDef
return Schema;
}
TEST(MemProf, FillsValue) {
std::unique_ptr<MockSymbolizer> Symbolizer(new MockSymbolizer());
EXPECT_CALL(*Symbolizer, symbolizeInlinedCode(SectionedAddress{0x2000},
specifier(), false))
.Times(2)
.WillRepeatedly(Return(makeInliningInfo({
{"foo", 10, 5, 30},
{"bar", 201, 150, 20},
})));
EXPECT_CALL(*Symbolizer, symbolizeInlinedCode(SectionedAddress{0x6000},
specifier(), false))
.Times(1)
.WillRepeatedly(Return(makeInliningInfo({
{"baz", 10, 5, 30},
{"qux.llvm.12345", 75, 70, 10},
})));
CallStackMap CSM;
CSM[0x1] = {0x2000};
CSM[0x2] = {0x6000, 0x2000};
llvm::MapVector<uint64_t, MemInfoBlock> Prof;
Prof[0x1].AllocCount = 1;
Prof[0x2].AllocCount = 2;
auto Seg = makeSegments();
RawMemProfReader Reader(std::move(Symbolizer), Seg, Prof, CSM);
std::vector<MemProfRecord> Records;
for (const MemProfRecord &R : Reader) {
Records.push_back(R);
}
EXPECT_EQ(Records.size(), 2U);
EXPECT_EQ(Records[0].Info.getAllocCount(), 1U);
EXPECT_EQ(Records[1].Info.getAllocCount(), 2U);
EXPECT_THAT(Records[0].CallStack[0], FrameContains("foo", 5U, 30U, false));
EXPECT_THAT(Records[0].CallStack[1], FrameContains("bar", 51U, 20U, true));
EXPECT_THAT(Records[1].CallStack[0], FrameContains("baz", 5U, 30U, false));
EXPECT_THAT(Records[1].CallStack[1], FrameContains("qux", 5U, 10U, true));
EXPECT_THAT(Records[1].CallStack[2], FrameContains("foo", 5U, 30U, false));
EXPECT_THAT(Records[1].CallStack[3], FrameContains("bar", 51U, 20U, true));
}
TEST(MemProf, PortableWrapper) {
MemInfoBlock Info(/*size=*/16, /*access_count=*/7, /*alloc_timestamp=*/1000,
/*dealloc_timestamp=*/2000, /*alloc_cpu=*/3,
/*dealloc_cpu=*/4);
const auto Schema = getFullSchema();
PortableMemInfoBlock WriteBlock(Info);
std::string Buffer;
llvm::raw_string_ostream OS(Buffer);
WriteBlock.serialize(Schema, OS);
OS.flush();
PortableMemInfoBlock ReadBlock(
Schema, reinterpret_cast<const unsigned char *>(Buffer.data()));
EXPECT_EQ(ReadBlock, WriteBlock);
// Here we compare directly with the actual counts instead of MemInfoBlock
// members. Since the MemInfoBlock struct is packed and the EXPECT_EQ macros
// take a reference to the params, this results in unaligned accesses.
EXPECT_EQ(1UL, ReadBlock.getAllocCount());
EXPECT_EQ(7ULL, ReadBlock.getTotalAccessCount());
EXPECT_EQ(3UL, ReadBlock.getAllocCpuId());
}
} // namespace
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