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70f1e167ac
Currently, `dyn_cast<XCOFFObjectFile>` always does cast and returns a pointer, even when we pass `ELF`/`Wasm`/`Mach-O` or `COFF` instead of `XCOFF`. It happens because `XCOFFObjectFile` class does not implement `classof`. I've fixed it and added a unit test. Differential revision: https://reviews.llvm.org/D86542
284 lines
10 KiB
C++
284 lines
10 KiB
C++
//===- XCOFFObjectFileTest.cpp - Tests for XCOFFObjectFile ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Object/ELFObjectFile.h"
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#include "llvm/Object/XCOFFObjectFile.h"
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#include "llvm/Testing/Support/Error.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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using namespace llvm::object;
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TEST(XCOFFObjectFileTest, XCOFFObjectType) {
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// Create an arbitrary object of a non-XCOFF type and test that
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// dyn_cast<XCOFFObjectFile> returns null for it.
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char Buf[sizeof(typename ELF64LE::Ehdr)] = {};
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memcpy(Buf, "\177ELF", 4);
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auto *EHdr = reinterpret_cast<typename ELF64LE::Ehdr *>(Buf);
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EHdr->e_ident[llvm::ELF::EI_CLASS] = llvm::ELF::ELFCLASS64;
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EHdr->e_ident[llvm::ELF::EI_DATA] = llvm::ELF::ELFDATA2LSB;
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MemoryBufferRef Source(StringRef(Buf, sizeof(Buf)), "non-XCOFF");
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Expected<std::unique_ptr<ObjectFile>> ObjOrErr =
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ObjectFile::createObjectFile(Source);
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ASSERT_THAT_EXPECTED(ObjOrErr, Succeeded());
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EXPECT_TRUE(dyn_cast<XCOFFObjectFile>((*ObjOrErr).get()) == nullptr);
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}
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TEST(XCOFFObjectFileTest, doesXCOFFTracebackTableBegin) {
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EXPECT_TRUE(doesXCOFFTracebackTableBegin({0, 0, 0, 0}));
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EXPECT_TRUE(doesXCOFFTracebackTableBegin({0, 0, 0, 0, 1}));
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EXPECT_FALSE(doesXCOFFTracebackTableBegin({0, 0, 0, 1}));
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EXPECT_FALSE(doesXCOFFTracebackTableBegin({0, 0, 0}));
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableAPIGeneral) {
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uint8_t V[] = {0x00, 0x00, 0x22, 0x40, 0x80, 0x00, 0x01, 0x05, 0x58, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x07, 0x61, 0x64,
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0x64, 0x5f, 0x61, 0x6c, 0x6c, 0x00, 0x00, 0x00};
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uint64_t Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr = XCOFFTracebackTable::create(V, Size);
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ASSERT_THAT_EXPECTED(TTOrErr, Succeeded());
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XCOFFTracebackTable TT = *TTOrErr;
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EXPECT_EQ(TT.getVersion(), 0);
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EXPECT_EQ(TT.getLanguageID(), 0);
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EXPECT_FALSE(TT.isGlobalLinkage());
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EXPECT_FALSE(TT.isOutOfLineEpilogOrPrologue());
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EXPECT_TRUE(TT.hasTraceBackTableOffset());
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EXPECT_FALSE(TT.isInternalProcedure());
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EXPECT_FALSE(TT.hasControlledStorage());
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EXPECT_FALSE(TT.isTOCless());
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EXPECT_TRUE(TT.isFloatingPointPresent());
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EXPECT_FALSE(TT.isFloatingPointOperationLogOrAbortEnabled());
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EXPECT_FALSE(TT.isInterruptHandler());
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EXPECT_TRUE(TT.isFuncNamePresent());
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EXPECT_FALSE(TT.isAllocaUsed());
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EXPECT_EQ(TT.getOnConditionDirective(), 0);
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EXPECT_FALSE(TT.isCRSaved());
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EXPECT_FALSE(TT.isLRSaved());
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EXPECT_TRUE(TT.isBackChainStored());
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EXPECT_FALSE(TT.isFixup());
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EXPECT_EQ(TT.getNumOfFPRsSaved(), 0);
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EXPECT_FALSE(TT.hasExtensionTable());
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EXPECT_FALSE(TT.hasVectorInfo());
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EXPECT_EQ(TT.getNumofGPRsSaved(), 0);
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EXPECT_EQ(TT.getNumberOfFixedParms(), 1);
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EXPECT_EQ(TT.getNumberOfFPParms(), 2);
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EXPECT_TRUE(TT.hasParmsOnStack());
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ASSERT_TRUE(TT.getParmsType());
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EXPECT_EQ(TT.getParmsType().getValue(), "i, f, d");
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ASSERT_TRUE(TT.getTraceBackTableOffset());
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EXPECT_EQ(TT.getTraceBackTableOffset().getValue(), 64u);
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EXPECT_FALSE(TT.getHandlerMask());
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ASSERT_TRUE(TT.getFunctionName());
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EXPECT_EQ(TT.getFunctionName().getValue(), "add_all");
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EXPECT_EQ(TT.getFunctionName().getValue().size(), 7u);
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EXPECT_FALSE(TT.getAllocaRegister());
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EXPECT_EQ(Size, 25u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableAPIParmsType) {
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uint8_t V[] = {0x01, 0x02, 0xA2, 0x40, 0x80, 0x00, 0x02, 0x07, 0x2B, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x07, 0x61, 0x64,
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0x64, 0x5f, 0x61, 0x6c, 0x6c, 0x00, 0x00, 0x00};
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uint64_t Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr = XCOFFTracebackTable::create(V, Size);
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ASSERT_THAT_EXPECTED(TTOrErr, Succeeded());
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XCOFFTracebackTable TT = *TTOrErr;
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EXPECT_EQ(TT.getVersion(), 1);
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EXPECT_EQ(TT.getLanguageID(), 2);
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EXPECT_TRUE(TT.isGlobalLinkage());
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EXPECT_EQ(TT.getNumberOfFixedParms(), 2);
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EXPECT_EQ(TT.getNumberOfFPParms(), 3);
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ASSERT_TRUE(TT.getParmsType());
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EXPECT_EQ(TT.getParmsType().getValue(), "i, i, f, f, d");
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V[8] = 0xAC;
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Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr1 = XCOFFTracebackTable::create(V, Size);
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ASSERT_THAT_EXPECTED(TTOrErr1, Succeeded());
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XCOFFTracebackTable TT1 = *TTOrErr1;
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ASSERT_TRUE(TT1.getParmsType());
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EXPECT_EQ(TT1.getParmsType().getValue(), "f, f, d, i, i");
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V[8] = 0xD4;
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Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr2 = XCOFFTracebackTable::create(V, Size);
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ASSERT_THAT_EXPECTED(TTOrErr2, Succeeded());
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XCOFFTracebackTable TT2 = *TTOrErr2;
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ASSERT_TRUE(TT2.getParmsType());
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EXPECT_EQ(TT2.getParmsType().getValue(), "d, i, f, f, i");
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V[6] = 0x01;
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Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr3 = XCOFFTracebackTable::create(V, Size);
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ASSERT_THAT_EXPECTED(TTOrErr3, Succeeded());
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XCOFFTracebackTable TT3 = *TTOrErr3;
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ASSERT_TRUE(TT3.getParmsType());
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EXPECT_EQ(TT3.getParmsType().getValue(), "d, i, f, f");
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}
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const uint8_t TBTableData[] = {0x00, 0x00, 0x2A, 0x40, 0x80, 0x40, 0x01, 0x05,
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0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40,
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0x00, 0x00, 0x00, 0x02, 0x05, 0x05, 0x00, 0x00,
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0x06, 0x06, 0x00, 0x00, 0x00, 0x07, 0x61, 0x64,
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0x64, 0x5f, 0x61, 0x6c, 0x6c, 0x00, 0x00, 0x00};
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableAPIControlledStorageInfoDisp) {
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uint64_t Size = 40;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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ASSERT_THAT_EXPECTED(TTOrErr, Succeeded());
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XCOFFTracebackTable TT = *TTOrErr;
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EXPECT_TRUE(TT.hasControlledStorage());
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ASSERT_TRUE(TT.getNumOfCtlAnchors());
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EXPECT_EQ(TT.getNumOfCtlAnchors().getValue(), 2u);
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ASSERT_TRUE(TT.getControlledStorageInfoDisp());
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SmallVector<uint32_t, 8> Disp = TT.getControlledStorageInfoDisp().getValue();
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ASSERT_EQ(Disp.size(), 2UL);
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EXPECT_EQ(Disp[0], 0x05050000u);
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EXPECT_EQ(Disp[1], 0x06060000u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableAPIHasVectorInfo) {
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uint64_t Size = 40;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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ASSERT_THAT_EXPECTED(TTOrErr, Succeeded());
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XCOFFTracebackTable TT = *TTOrErr;
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EXPECT_TRUE(TT.hasVectorInfo());
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EXPECT_FALSE(TT.getParmsType());
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtMandatory) {
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uint64_t Size = 6;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x6 while reading [0x0, 0x8)"));
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EXPECT_EQ(Size, 0UL);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtParmsType) {
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uint64_t Size = 9;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x9 while reading [0x8, 0xc)"));
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EXPECT_EQ(Size, 8u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtTBOffset) {
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uint64_t Size = 14;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0xe while reading [0xc, 0x10)"));
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EXPECT_EQ(Size, 12u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtHandlerMask) {
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uint8_t V[] = {0x00, 0x00, 0x22, 0xC0, 0x80, 0x00, 0x01, 0x05, 0x58,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x07};
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uint64_t Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr = XCOFFTracebackTable::create(V, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x12 while reading [0x10, 0x14)"));
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EXPECT_EQ(Size, 16u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtNumOfCtlAnchors) {
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uint64_t Size = 19;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x13 while reading [0x10, 0x14)"));
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EXPECT_EQ(Size, 16u);
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}
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TEST(XCOFFObjectFileTest,
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XCOFFTracebackTableTruncatedAtControlledStorageInfoDisp) {
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uint64_t Size = 21;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x15 while reading [0x14, 0x18)"));
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EXPECT_EQ(Size, 20u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtNameLen) {
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uint64_t Size = 29;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x1d while reading [0x1c, 0x1e)"));
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EXPECT_EQ(Size, 28u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtFunctionName) {
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uint64_t Size = 36;
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Expected<XCOFFTracebackTable> TTOrErr =
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XCOFFTracebackTable::create(TBTableData, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x24 while reading [0x1e, 0x25)"));
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EXPECT_EQ(Size, 30u);
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}
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TEST(XCOFFObjectFileTest, XCOFFTracebackTableTruncatedAtAllocaUsed) {
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uint8_t V[] = {0x00, 0x00, 0x2A, 0x60, 0x80, 0x00, 0x01, 0x05, 0x58, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x02,
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0x05, 0x05, 0x00, 0x00, 0x06, 0x06, 0x00, 0x00, 0x00, 0x07,
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0x61, 0x64, 0x64, 0x5f, 0x61, 0x6c, 0x6c};
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uint64_t Size = sizeof(V);
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Expected<XCOFFTracebackTable> TTOrErr = XCOFFTracebackTable::create(V, Size);
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EXPECT_THAT_ERROR(
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TTOrErr.takeError(),
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FailedWithMessage(
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"unexpected end of data at offset 0x25 while reading [0x25, 0x26)"));
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EXPECT_EQ(Size, 37u);
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}
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