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compute-runtime/shared/test/unit_test/compiler_interface/linker_tests.cpp

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/*
* Copyright (C) 2019-2021 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/device_binary_format/elf/zebin_elf.h"
#include "shared/source/helpers/ptr_math.h"
#include "shared/source/memory_manager/graphics_allocation.h"
#include "shared/source/program/program_initialization.h"
#include "shared/test/common/helpers/debug_manager_state_restore.h"
#include "shared/test/common/helpers/default_hw_info.h"
#include "shared/test/common/mocks/mock_elf.h"
#include "shared/test/common/mocks/mock_graphics_allocation.h"
#include "opencl/test/unit_test/mocks/mock_cl_device.h"
#include "opencl/test/unit_test/mocks/mock_svm_manager.h"
#include "RelocationInfo.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "linker_mock.h"
#include <string>
TEST(SegmentTypeTests, givenSegmentTypeWhenAsStringIsCalledThenProperRepresentationIsReturned) {
EXPECT_STREQ("UNKOWN", NEO::asString(NEO::SegmentType::Unknown));
EXPECT_STREQ("GLOBAL_CONSTANTS", NEO::asString(NEO::SegmentType::GlobalConstants));
EXPECT_STREQ("GLOBAL_VARIABLES", NEO::asString(NEO::SegmentType::GlobalVariables));
EXPECT_STREQ("INSTRUCTIONS", NEO::asString(NEO::SegmentType::Instructions));
}
TEST(LinkerInputTraitsTests, whenPointerSizeNotSizeThenDefaultsToHostPointerSize) {
using PointerSize = NEO::LinkerInput::Traits::PointerSize;
auto expectedPointerSize = (sizeof(void *) == 4) ? PointerSize::Ptr32bit : PointerSize::Ptr64bit;
auto pointerSize = NEO::LinkerInput::Traits{}.pointerSize;
EXPECT_EQ(expectedPointerSize, pointerSize);
}
TEST(LinkerInputTests, givenGlobalsSymbolTableThenProperlyDecodesGlobalVariablesAndGlobalConstants) {
NEO::LinkerInput linkerInput;
EXPECT_TRUE(linkerInput.isValid());
vISA::GenSymEntry entry[2] = {{}, {}};
entry[0].s_name[0] = 'A';
entry[0].s_offset = 8;
entry[0].s_size = 16;
entry[0].s_type = vISA::GenSymType::S_GLOBAL_VAR;
entry[1].s_name[0] = 'B';
entry[1].s_offset = 24;
entry[1].s_size = 8;
entry[1].s_type = vISA::GenSymType::S_GLOBAL_VAR_CONST;
EXPECT_EQ(0U, linkerInput.getSymbols().size());
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
auto decodeResult = linkerInput.decodeGlobalVariablesSymbolTable(entry, 2);
EXPECT_TRUE(decodeResult);
EXPECT_TRUE(linkerInput.isValid());
EXPECT_EQ(2U, linkerInput.getSymbols().size());
EXPECT_TRUE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_TRUE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
auto symbolA = linkerInput.getSymbols().find("A");
ASSERT_NE(linkerInput.getSymbols().end(), symbolA);
EXPECT_EQ(entry[0].s_offset, symbolA->second.offset);
EXPECT_EQ(entry[0].s_size, symbolA->second.size);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, symbolA->second.segment);
auto symbolB = linkerInput.getSymbols().find("B");
ASSERT_NE(linkerInput.getSymbols().end(), symbolB);
EXPECT_EQ(entry[1].s_offset, symbolB->second.offset);
EXPECT_EQ(entry[1].s_size, symbolB->second.size);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, symbolB->second.segment);
auto symbolC = linkerInput.getSymbols().find("C");
EXPECT_EQ(linkerInput.getSymbols().end(), symbolC);
}
TEST(LinkerInputTests, givenFunctionsSymbolTableThenProperlyDecodesGlobalVariablesAndGlobalConstants) {
// Note : this is subject to change in IGC shotly.
// GLOBAL_VAR/CONST will be ultimately allowed only in globalVariables symbol table.
NEO::LinkerInput linkerInput;
vISA::GenSymEntry entry[2] = {{}, {}};
entry[0].s_name[0] = 'A';
entry[0].s_offset = 8;
entry[0].s_size = 16;
entry[0].s_type = vISA::GenSymType::S_GLOBAL_VAR;
entry[1].s_name[0] = 'B';
entry[1].s_offset = 24;
entry[1].s_size = 8;
entry[1].s_type = vISA::GenSymType::S_GLOBAL_VAR_CONST;
EXPECT_EQ(0U, linkerInput.getSymbols().size());
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
auto decodeResult = linkerInput.decodeExportedFunctionsSymbolTable(entry, 2, 3);
EXPECT_TRUE(decodeResult);
EXPECT_TRUE(linkerInput.isValid());
EXPECT_EQ(2U, linkerInput.getSymbols().size());
EXPECT_TRUE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_TRUE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
auto symbolA = linkerInput.getSymbols().find("A");
ASSERT_NE(linkerInput.getSymbols().end(), symbolA);
EXPECT_EQ(entry[0].s_offset, symbolA->second.offset);
EXPECT_EQ(entry[0].s_size, symbolA->second.size);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, symbolA->second.segment);
auto symbolB = linkerInput.getSymbols().find("B");
ASSERT_NE(linkerInput.getSymbols().end(), symbolB);
EXPECT_EQ(entry[1].s_offset, symbolB->second.offset);
EXPECT_EQ(entry[1].s_size, symbolB->second.size);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, symbolB->second.segment);
auto symbolC = linkerInput.getSymbols().find("C");
EXPECT_EQ(linkerInput.getSymbols().end(), symbolC);
}
TEST(LinkerInputTests, givenGlobalsSymbolTableThenFunctionExportsAreNotAllowed) {
NEO::LinkerInput linkerInput;
vISA::GenSymEntry entry = {};
entry.s_name[0] = 'A';
entry.s_offset = 8;
entry.s_size = 16;
entry.s_type = vISA::GenSymType::S_FUNC;
auto decodeResult = linkerInput.decodeGlobalVariablesSymbolTable(&entry, 1);
EXPECT_FALSE(decodeResult);
EXPECT_FALSE(linkerInput.isValid());
}
TEST(LinkerInputTests, givenFunctionsSymbolTableThenProperlyDecodesExportedFunctions) {
NEO::LinkerInput linkerInput;
vISA::GenSymEntry entry[2] = {{}, {}};
entry[0].s_name[0] = 'A';
entry[0].s_offset = 8;
entry[0].s_size = 16;
entry[0].s_type = vISA::GenSymType::S_FUNC;
entry[1].s_name[0] = 'B';
entry[1].s_offset = 24;
entry[1].s_size = 8;
entry[1].s_type = vISA::GenSymType::S_FUNC;
EXPECT_EQ(0U, linkerInput.getSymbols().size());
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
EXPECT_EQ(-1, linkerInput.getExportedFunctionsSegmentId());
auto decodeResult = linkerInput.decodeExportedFunctionsSymbolTable(entry, 2, 3);
EXPECT_TRUE(decodeResult);
EXPECT_TRUE(linkerInput.isValid());
EXPECT_EQ(2U, linkerInput.getSymbols().size());
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_TRUE(linkerInput.getTraits().exportsFunctions);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
auto symbolA = linkerInput.getSymbols().find("A");
ASSERT_NE(linkerInput.getSymbols().end(), symbolA);
EXPECT_EQ(entry[0].s_offset, symbolA->second.offset);
EXPECT_EQ(entry[0].s_size, symbolA->second.size);
EXPECT_EQ(NEO::SegmentType::Instructions, symbolA->second.segment);
auto symbolB = linkerInput.getSymbols().find("B");
ASSERT_NE(linkerInput.getSymbols().end(), symbolB);
EXPECT_EQ(entry[1].s_offset, symbolB->second.offset);
EXPECT_EQ(entry[1].s_size, symbolB->second.size);
EXPECT_EQ(NEO::SegmentType::Instructions, symbolB->second.segment);
EXPECT_EQ(3, linkerInput.getExportedFunctionsSegmentId());
}
TEST(LinkerInputTests, givenFunctionsSymbolTableThenUndefIsNotAllowed) {
NEO::LinkerInput linkerInput;
vISA::GenSymEntry entry = {};
entry.s_name[0] = 'A';
entry.s_offset = 8;
entry.s_size = 16;
entry.s_type = vISA::GenSymType::S_UNDEF;
auto decodeResult = linkerInput.decodeExportedFunctionsSymbolTable(&entry, 1, 3);
EXPECT_FALSE(decodeResult);
EXPECT_FALSE(linkerInput.isValid());
}
TEST(LinkerInputTests, givenRelocationTableThenRelocationEntriesAreProperlyParsed) {
NEO::LinkerInput linkerInput;
vISA::GenRelocEntry entry = {};
entry.r_symbol[0] = 'A';
entry.r_offset = 8;
entry.r_type = vISA::GenRelocType::R_SYM_ADDR;
auto decodeResult = linkerInput.decodeRelocationTable(&entry, 1, 3);
EXPECT_TRUE(decodeResult);
EXPECT_EQ(0U, linkerInput.getSymbols().size());
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
EXPECT_TRUE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
decodeResult = linkerInput.decodeRelocationTable(&entry, 1, 1);
EXPECT_TRUE(decodeResult);
EXPECT_TRUE(linkerInput.isValid());
}
TEST(LinkerInputTests, givenRelocationTableThenNoneAsRelocationTypeIsNotAllowed) {
NEO::LinkerInput linkerInput;
vISA::GenRelocEntry entry = {};
entry.r_symbol[0] = 'A';
entry.r_offset = 8;
entry.r_type = vISA::GenRelocType::R_NONE;
auto decodeResult = linkerInput.decodeRelocationTable(&entry, 1, 3);
EXPECT_FALSE(decodeResult);
EXPECT_FALSE(linkerInput.isValid());
}
TEST(LinkerInputTests, whenDataRelocationsAreAddedThenProperTraitsAreSet) {
NEO::LinkerInput linkerInput;
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalConstantsBuffer);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalVariablesBuffer);
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 7U;
relocInfo.relocationSegment = NEO::SegmentType::GlobalConstants;
relocInfo.symbolName = "aaa";
relocInfo.symbolSegment = NEO::SegmentType::GlobalVariables;
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
linkerInput.addDataRelocationInfo(relocInfo);
ASSERT_EQ(1U, linkerInput.getDataRelocations().size());
EXPECT_EQ(relocInfo.offset, linkerInput.getDataRelocations()[0].offset);
EXPECT_EQ(relocInfo.relocationSegment, linkerInput.getDataRelocations()[0].relocationSegment);
EXPECT_EQ(relocInfo.symbolName, linkerInput.getDataRelocations()[0].symbolName);
EXPECT_EQ(relocInfo.symbolSegment, linkerInput.getDataRelocations()[0].symbolSegment);
EXPECT_EQ(relocInfo.type, linkerInput.getDataRelocations()[0].type);
EXPECT_TRUE(linkerInput.getTraits().requiresPatchingOfGlobalConstantsBuffer);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalVariablesBuffer);
EXPECT_TRUE(linkerInput.isValid());
linkerInput = {};
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalConstantsBuffer);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalVariablesBuffer);
relocInfo.relocationSegment = NEO::SegmentType::GlobalVariables;
relocInfo.symbolSegment = NEO::SegmentType::GlobalConstants;
linkerInput.addDataRelocationInfo(relocInfo);
ASSERT_EQ(1U, linkerInput.getDataRelocations().size());
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalConstantsBuffer);
EXPECT_TRUE(linkerInput.getTraits().requiresPatchingOfGlobalVariablesBuffer);
EXPECT_TRUE(linkerInput.isValid());
}
TEST(LinkerInputTests, WhenGettingSegmentForSectionNameThenCorrectSegmentIsReturned) {
auto segmentConst = NEO::LinkerInput::getSegmentForSection(NEO::Elf::SectionsNamesZebin::dataConst.str());
auto segmentGlobalConst = NEO::LinkerInput::getSegmentForSection(NEO::Elf::SectionsNamesZebin::dataGlobalConst.str());
auto segmentGlobal = NEO::LinkerInput::getSegmentForSection(NEO::Elf::SectionsNamesZebin::dataGlobal.str());
auto segmentInstructions = NEO::LinkerInput::getSegmentForSection(NEO::Elf::SectionsNamesZebin::textPrefix.str());
auto segmentInstructions2 = NEO::LinkerInput::getSegmentForSection(".text.abc");
EXPECT_EQ(NEO::SegmentType::GlobalConstants, segmentConst);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, segmentGlobalConst);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, segmentGlobal);
EXPECT_EQ(NEO::SegmentType::Instructions, segmentInstructions);
EXPECT_EQ(NEO::SegmentType::Instructions, segmentInstructions2);
}
TEST(LinkerInputTests, WhenGettingSegmentForUnknownSectionNameThenUnknownSegmentIsReturned) {
auto segment = NEO::LinkerInput::getSegmentForSection("Not_a_valid_section_name");
EXPECT_EQ(NEO::SegmentType::Unknown, segment);
}
TEST(LinkerInputTests, WhenAddingElfTextRelocationForSegmentIndexThenInstructionSegmentForRelocationAndProperTraitsAreSet) {
NEO::LinkerInput linkerInput = {};
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalConstantsBuffer);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalVariablesBuffer);
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 7u;
relocInfo.relocationSegment = NEO::SegmentType::GlobalConstants;
relocInfo.symbolName = "test";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
relocInfo.relocationSegment = NEO::SegmentType::GlobalVariables;
relocInfo.symbolSegment = NEO::SegmentType::GlobalConstants;
linkerInput.addElfTextSegmentRelocation(relocInfo, 5);
ASSERT_EQ(0u, linkerInput.getDataRelocations().size());
ASSERT_EQ(6u, linkerInput.getRelocationsInInstructionSegments().size());
auto relocs = linkerInput.getRelocationsInInstructionSegments()[5];
ASSERT_EQ(1u, relocs.size());
EXPECT_EQ(NEO::SegmentType::Instructions, relocs[0].relocationSegment);
EXPECT_EQ(NEO::SegmentType::Unknown, relocs[0].symbolSegment);
EXPECT_EQ(std::string("test"), relocs[0].symbolName);
EXPECT_EQ(7u, relocs[0].offset);
EXPECT_TRUE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalConstantsBuffer);
EXPECT_FALSE(linkerInput.getTraits().requiresPatchingOfGlobalVariablesBuffer);
EXPECT_TRUE(linkerInput.isValid());
}
TEST(LinkerInputTests, WhenAddingTwoElfTextRelocationForSingleSegmentIndexThenBothRelocationsAreAddedForTheSameSegment) {
NEO::LinkerInput linkerInput = {};
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 7u;
relocInfo.relocationSegment = NEO::SegmentType::GlobalConstants;
relocInfo.symbolName = "test";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
relocInfo.relocationSegment = NEO::SegmentType::GlobalVariables;
relocInfo.symbolSegment = NEO::SegmentType::GlobalConstants;
linkerInput.addElfTextSegmentRelocation(relocInfo, 0);
ASSERT_EQ(1u, linkerInput.getRelocationsInInstructionSegments().size());
auto &relocs = linkerInput.getRelocationsInInstructionSegments()[0];
EXPECT_EQ(1u, relocs.size());
relocInfo.offset = 24u;
linkerInput.addElfTextSegmentRelocation(relocInfo, 0);
EXPECT_EQ(2u, relocs.size());
EXPECT_TRUE(linkerInput.getTraits().requiresPatchingOfInstructionSegments);
}
TEST(LinkerInputTests, WhenDecodingElfTextRelocationsThenCorrectRelocationsAreAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.const";
sectionNames[2] = ".text.hello";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 0;
elf64.relocations.emplace_back(reloc);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc2;
reloc2.offset = 32;
reloc2.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_32);
reloc2.symbolName = "symbol2";
reloc2.symbolSectionIndex = 1;
reloc2.symbolTableIndex = 0;
reloc2.targetSectionIndex = 2;
elf64.relocations.emplace_back(reloc2);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
nameToKernelId["hello"] = 1;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getRelocationsInInstructionSegments();
ASSERT_EQ(2u, relocations.size());
auto &segment0Relocs = relocations[0];
ASSERT_EQ(1u, segment0Relocs.size());
EXPECT_EQ(64u, segment0Relocs[0].offset);
EXPECT_EQ(NEO::SegmentType::Instructions, segment0Relocs[0].relocationSegment);
EXPECT_EQ("symbol1", segment0Relocs[0].symbolName);
EXPECT_EQ(NEO::SegmentType::Unknown, segment0Relocs[0].symbolSegment);
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::Address, segment0Relocs[0].type);
auto &segment1Relocs = relocations[1];
ASSERT_EQ(1u, segment1Relocs.size());
EXPECT_EQ(32u, segment1Relocs[0].offset);
EXPECT_EQ(NEO::SegmentType::Instructions, segment1Relocs[0].relocationSegment);
EXPECT_EQ("symbol2", segment1Relocs[0].symbolName);
EXPECT_EQ(NEO::SegmentType::Unknown, segment1Relocs[0].symbolSegment);
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::AddressLow, segment1Relocs[0].type);
}
TEST(LinkerInputTests, GivenNoKernelNameToIdWhenDecodingElfTextRelocationsThenNoRelocationIsAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.const";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 0;
elf64.relocations.emplace_back(reloc);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["wrong_name"] = 0;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getRelocationsInInstructionSegments();
ASSERT_EQ(0u, relocations.size());
}
TEST(LinkerInputTests, GivenInvalidTextSectionNameWhenDecodingElfTextRelocationsThenNoRelocationIsAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".invalid.abc";
sectionNames[1] = ".data.const";
sectionNames[2] = ".text.hello";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 0;
elf64.relocations.emplace_back(reloc);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
nameToKernelId["hello"] = 1;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getRelocationsInInstructionSegments();
ASSERT_EQ(0u, relocations.size());
}
TEST(LinkerInputTests, GivenInvalidRelocationTypeWhenDecodingElfTextRelocationsThenUnknownTypeIsSet) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.const";
sectionNames[2] = ".text.hello";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = 0xffffffff; // invalid type
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 0;
elf64.relocations.emplace_back(reloc);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
nameToKernelId["hello"] = 1;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getRelocationsInInstructionSegments();
ASSERT_EQ(1u, relocations.size());
ASSERT_EQ(1u, relocations[0].size());
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::Unknown, relocations[0][0].type);
}
TEST(LinkerInputTests, WhenDecodingElfGlobalDataRelocationsThenCorrectRelocationsAreAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.global";
sectionNames[2] = ".data.const";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 1;
elf64.relocations.emplace_back(reloc);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc2;
reloc2.offset = 32;
reloc2.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc2.symbolName = "symbol2";
reloc2.symbolSectionIndex = 2;
reloc2.symbolTableIndex = 0;
reloc2.targetSectionIndex = 1;
elf64.relocations.emplace_back(reloc2);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getDataRelocations();
ASSERT_EQ(2u, relocations.size());
EXPECT_EQ(64u, relocations[0].offset);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, relocations[0].relocationSegment);
EXPECT_EQ("symbol1", relocations[0].symbolName);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, relocations[0].symbolSegment);
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::Address, relocations[0].type);
EXPECT_EQ(32u, relocations[1].offset);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, relocations[1].relocationSegment);
EXPECT_EQ("symbol2", relocations[1].symbolName);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, relocations[1].symbolSegment);
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::Address, relocations[1].type);
}
TEST(LinkerInputTests, WhenDecodingElfConstantDataRelocationsThenCorrectRelocationsAreAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.global";
sectionNames[2] = ".data.const";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 2;
elf64.relocations.emplace_back(reloc);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc2;
reloc2.offset = 32;
reloc2.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc2.symbolName = "symbol2";
reloc2.symbolSectionIndex = 2;
reloc2.symbolTableIndex = 0;
reloc2.targetSectionIndex = 2;
elf64.relocations.emplace_back(reloc2);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getDataRelocations();
ASSERT_EQ(2u, relocations.size());
EXPECT_EQ(64u, relocations[0].offset);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, relocations[0].relocationSegment);
EXPECT_EQ("symbol1", relocations[0].symbolName);
EXPECT_EQ(NEO::SegmentType::GlobalVariables, relocations[0].symbolSegment);
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::Address, relocations[0].type);
EXPECT_EQ(32u, relocations[1].offset);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, relocations[1].relocationSegment);
EXPECT_EQ("symbol2", relocations[1].symbolName);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, relocations[1].symbolSegment);
EXPECT_EQ(NEO::LinkerInput::RelocationInfo::Type::Address, relocations[1].type);
}
TEST(LinkerInputTests, GivenUnsupportedDataSegmentWhenDecodingElfDataRelocationThenNoRelocationsAreAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data";
sectionNames[2] = ".data.const";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 2;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 1;
elf64.relocations.emplace_back(reloc);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getDataRelocations();
ASSERT_EQ(0u, relocations.size());
}
TEST(LinkerInputTests, GivenUnsupportedSymbolSegmentWhenDecodingElfDataRelocationThenNoRelocationsAreAddedAndDebugBreakIsCalled) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data";
sectionNames[2] = ".data.const";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc;
reloc.offset = 64;
reloc.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc.symbolName = "symbol1";
reloc.symbolSectionIndex = 1;
reloc.symbolTableIndex = 0;
reloc.targetSectionIndex = 2;
elf64.relocations.emplace_back(reloc);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto relocations = linkerInput.getDataRelocations();
ASSERT_EQ(0u, relocations.size());
}
TEST(LinkerInputTests, GivenGlobalAndLocalElfSymbolsWhenDecodingThenOnlyGlobalSymbolsAreAdded) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.const";
sectionNames[2] = ".text.hello";
elf64.setupSecionNames(std::move(sectionNames));
elf64.overrideSymbolName = true;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol;
symbol.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_OBJECT | NEO::Elf::SYMBOL_TABLE_BIND::STB_GLOBAL << 4;
symbol.name = 0;
symbol.other = 0;
symbol.shndx = 1;
symbol.size = 8;
symbol.value = 0x1234000;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol2;
symbol2.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_FUNC | NEO::Elf::SYMBOL_TABLE_BIND::STB_GLOBAL << 4;
symbol2.name = 8;
symbol2.other = 0;
symbol2.shndx = 0;
symbol2.size = 16;
symbol2.value = 0x5000;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol3;
symbol3.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_FUNC | NEO::Elf::SYMBOL_TABLE_BIND::STB_LOCAL << 4;
symbol3.name = 16;
symbol3.other = 0;
symbol3.shndx = 0;
symbol3.size = 8;
symbol3.value = 0;
elf64.symbolTable.emplace_back(symbol);
elf64.symbolTable.emplace_back(symbol2);
elf64.symbolTable.emplace_back(symbol3);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
nameToKernelId["hello"] = 1;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto symbols = linkerInput.getSymbols();
ASSERT_EQ(2u, symbols.size());
EXPECT_EQ(0x1234000u, symbols[std::to_string(symbol.name)].offset);
EXPECT_EQ(NEO::SegmentType::GlobalConstants, symbols[std::to_string(symbol.name)].segment);
EXPECT_EQ(8u, symbols[std::to_string(symbol.name)].size);
EXPECT_EQ(0x5000u, symbols[std::to_string(symbol2.name)].offset);
EXPECT_EQ(NEO::SegmentType::Instructions, symbols[std::to_string(symbol2.name)].segment);
EXPECT_EQ(16u, symbols[std::to_string(symbol2.name)].size);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_TRUE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_TRUE(linkerInput.getTraits().exportsFunctions);
}
TEST(LinkerInputTests, GivenGlobalFunctionsInTwoSegementsWhenDecodingThenUnrecoverableIsCalled) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.const";
sectionNames[2] = ".text.hello";
elf64.setupSecionNames(std::move(sectionNames));
elf64.overrideSymbolName = true;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol;
symbol.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_FUNC | NEO::Elf::SYMBOL_TABLE_BIND::STB_GLOBAL << 4;
symbol.name = 0;
symbol.other = 0;
symbol.shndx = 0;
symbol.size = 8;
symbol.value = 0x1234000;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol2;
symbol2.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_FUNC | NEO::Elf::SYMBOL_TABLE_BIND::STB_GLOBAL << 4;
symbol2.name = 8;
symbol2.other = 0;
symbol2.shndx = 2;
symbol2.size = 16;
symbol2.value = 0x5000;
elf64.symbolTable.emplace_back(symbol);
elf64.symbolTable.emplace_back(symbol2);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
nameToKernelId["hello"] = 1;
EXPECT_THROW(linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId), std::exception);
auto symbols = linkerInput.getSymbols();
ASSERT_EQ(2u, symbols.size());
EXPECT_EQ(0, linkerInput.getExportedFunctionsSegmentId());
}
TEST(LinkerInputTests, GivenNoKernelNameToIdWhenDecodingGlobalFunctionThenExportedFunctionsSegmentIsNotSet) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
elf64.setupSecionNames(std::move(sectionNames));
elf64.overrideSymbolName = true;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol;
symbol.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_FUNC | NEO::Elf::SYMBOL_TABLE_BIND::STB_GLOBAL << 4;
symbol.name = 0;
symbol.other = 0;
symbol.shndx = 0;
symbol.size = 8;
symbol.value = 0x1234000;
elf64.symbolTable.emplace_back(symbol);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["hello"] = 1;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto symbols = linkerInput.getSymbols();
ASSERT_EQ(1u, symbols.size());
EXPECT_EQ(-1, linkerInput.getExportedFunctionsSegmentId());
}
TEST(LinkerInputTests, GivenGlobalElfSymbolOfNoTypeWhenDecodingThenSymbolWithUnknownSegmentIsAddedAndDebugBreakCalled) {
NEO::LinkerInput linkerInput = {};
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text.abc";
sectionNames[1] = ".data.const";
sectionNames[2] = ".text.hello";
elf64.setupSecionNames(std::move(sectionNames));
elf64.overrideSymbolName = true;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol;
symbol.info = NEO::Elf::SYMBOL_TABLE_TYPE::STT_NOTYPE | NEO::Elf::SYMBOL_TABLE_BIND::STB_GLOBAL << 4;
symbol.name = 0;
symbol.other = 0;
symbol.shndx = 1;
symbol.size = 8;
symbol.value = 0x1234000;
elf64.symbolTable.emplace_back(symbol);
NEO::LinkerInput::SectionNameToSegmentIdMap nameToKernelId;
nameToKernelId["abc"] = 0;
nameToKernelId["hello"] = 1;
linkerInput.decodeElfSymbolTableAndRelocations(elf64, nameToKernelId);
auto symbols = linkerInput.getSymbols();
ASSERT_EQ(1u, symbols.size());
EXPECT_EQ(SegmentType::Unknown, symbols.begin()->second.segment);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalVariables);
EXPECT_FALSE(linkerInput.getTraits().exportsGlobalConstants);
EXPECT_FALSE(linkerInput.getTraits().exportsFunctions);
}
TEST(LinkerTests, givenEmptyLinkerInputThenLinkerOutputIsEmpty) {
NEO::LinkerInput linkerInput;
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo globalVar, globalConst, exportedFunc;
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
NEO::Linker::PatchableSegments patchableInstructionSegments;
NEO::Linker::UnresolvedExternals unresolvedExternals;
auto linkResult = linker.link(globalVar, globalConst, exportedFunc,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
auto relocatedSymbols = linker.extractRelocatedSymbols();
EXPECT_EQ(0U, relocatedSymbols.size());
}
TEST(LinkerTests, givenInvalidLinkerInputThenLinkerFails) {
WhiteBox<NEO::LinkerInput> mockLinkerInput;
mockLinkerInput.valid = false;
NEO::Linker linker(mockLinkerInput);
NEO::Linker::SegmentInfo globalVar, globalConst, exportedFunc;
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
NEO::Linker::PatchableSegments patchableInstructionSegments;
NEO::Linker::UnresolvedExternals unresolvedExternals;
auto linkResult = linker.link(globalVar, globalConst, exportedFunc,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::Error, linkResult);
}
TEST(LinkerTests, givenUnresolvedExternalWhenPatchingInstructionsThenLinkPartially) {
NEO::LinkerInput linkerInput;
vISA::GenRelocEntry entry = {};
entry.r_symbol[0] = 'A';
entry.r_offset = 8;
entry.r_type = vISA::GenRelocType::R_SYM_ADDR;
auto decodeResult = linkerInput.decodeRelocationTable(&entry, 1, 0);
EXPECT_TRUE(decodeResult);
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo globalVar, globalConst, exportedFunc;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> instructionSegment;
instructionSegment.resize(64);
NEO::Linker::PatchableSegment seg0;
seg0.hostPointer = instructionSegment.data();
seg0.segmentSize = instructionSegment.size();
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
NEO::Linker::PatchableSegments patchableInstructionSegments{seg0};
auto linkResult = linker.link(globalVar, globalConst, exportedFunc,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
auto relocatedSymbols = linker.extractRelocatedSymbols();
EXPECT_EQ(0U, relocatedSymbols.size());
ASSERT_EQ(1U, unresolvedExternals.size());
EXPECT_EQ(0U, unresolvedExternals[0].instructionsSegmentId);
EXPECT_FALSE(unresolvedExternals[0].internalError);
EXPECT_EQ(entry.r_offset, unresolvedExternals[0].unresolvedRelocation.offset);
EXPECT_EQ(std::string(entry.r_symbol), std::string(unresolvedExternals[0].unresolvedRelocation.symbolName));
}
TEST(LinkerTests, givenValidSymbolsAndRelocationsThenInstructionSegmentsAreProperlyPatched) {
NEO::LinkerInput linkerInput;
vISA::GenSymEntry symGlobalVariable = {};
symGlobalVariable.s_name[0] = 'A';
symGlobalVariable.s_offset = 4;
symGlobalVariable.s_size = 16;
symGlobalVariable.s_type = vISA::GenSymType::S_GLOBAL_VAR;
bool decodeSymSuccess = linkerInput.decodeGlobalVariablesSymbolTable(&symGlobalVariable, 1);
vISA::GenSymEntry symGlobalConstant = {};
symGlobalConstant.s_name[0] = 'B';
symGlobalConstant.s_offset = 20;
symGlobalConstant.s_size = 8;
symGlobalConstant.s_type = vISA::GenSymType::S_GLOBAL_VAR_CONST;
decodeSymSuccess = decodeSymSuccess && linkerInput.decodeGlobalVariablesSymbolTable(&symGlobalConstant, 1);
vISA::GenSymEntry symExportedFunc = {};
symExportedFunc.s_name[0] = 'C';
symExportedFunc.s_offset = 16;
symExportedFunc.s_size = 32;
symExportedFunc.s_type = vISA::GenSymType::S_FUNC;
decodeSymSuccess = decodeSymSuccess && linkerInput.decodeExportedFunctionsSymbolTable(&symExportedFunc, 1, 0);
EXPECT_TRUE(decodeSymSuccess);
vISA::GenRelocEntry relocA = {};
relocA.r_symbol[0] = 'A';
relocA.r_offset = 0;
relocA.r_type = vISA::GenRelocType::R_SYM_ADDR;
vISA::GenRelocEntry relocB = {};
relocB.r_symbol[0] = 'B';
relocB.r_offset = 8;
relocB.r_type = vISA::GenRelocType::R_SYM_ADDR;
vISA::GenRelocEntry relocC = {};
relocC.r_symbol[0] = 'C';
relocC.r_offset = 16;
relocC.r_type = vISA::GenRelocType::R_SYM_ADDR;
vISA::GenRelocEntry relocCPartHigh = {};
relocCPartHigh.r_symbol[0] = 'C';
relocCPartHigh.r_offset = 28;
relocCPartHigh.r_type = vISA::GenRelocType::R_SYM_ADDR_32_HI;
vISA::GenRelocEntry relocCPartLow = {};
relocCPartLow.r_symbol[0] = 'C';
relocCPartLow.r_offset = 36;
relocCPartLow.r_type = vISA::GenRelocType::R_SYM_ADDR_32;
vISA::GenRelocEntry relocIgnore = {};
relocIgnore.r_symbol[0] = 'X';
relocIgnore.r_offset = 36;
relocIgnore.r_type = vISA::GenRelocType::R_PER_THREAD_PAYLOAD_OFFSET_32;
vISA::GenRelocEntry relocs[] = {relocA, relocB, relocC, relocCPartHigh, relocCPartLow, relocIgnore};
constexpr uint32_t numRelocations = sizeof(relocs) / sizeof(relocs[0]);
bool decodeRelocSuccess = linkerInput.decodeRelocationTable(&relocs, numRelocations, 0);
EXPECT_TRUE(decodeRelocSuccess);
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo globalVarSegment, globalConstSegment, exportedFuncSegment;
globalVarSegment.gpuAddress = 8;
globalVarSegment.segmentSize = 64;
globalConstSegment.gpuAddress = 128;
globalConstSegment.segmentSize = 256;
exportedFuncSegment.gpuAddress = 4096;
exportedFuncSegment.segmentSize = 1024;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> instructionSegment;
uint32_t initData = 0x77777777;
instructionSegment.resize(64, static_cast<char>(initData));
NEO::Linker::PatchableSegment seg0;
seg0.hostPointer = instructionSegment.data();
seg0.segmentSize = instructionSegment.size();
NEO::Linker::PatchableSegments patchableInstructionSegments{seg0};
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
auto linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments, unresolvedExternals,
nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
auto relocatedSymbols = linker.extractRelocatedSymbols();
EXPECT_EQ(0U, unresolvedExternals.size());
EXPECT_EQ(3U, relocatedSymbols.size());
ASSERT_EQ(1U, relocatedSymbols.count(symGlobalVariable.s_name));
ASSERT_EQ(1U, relocatedSymbols.count(symGlobalConstant.s_name));
ASSERT_EQ(1U, relocatedSymbols.count(symGlobalVariable.s_name));
EXPECT_EQ(relocatedSymbols[symGlobalVariable.s_name].gpuAddress, globalVarSegment.gpuAddress + symGlobalVariable.s_offset);
EXPECT_EQ(relocatedSymbols[symGlobalConstant.s_name].gpuAddress, globalConstSegment.gpuAddress + symGlobalConstant.s_offset);
EXPECT_EQ(relocatedSymbols[symExportedFunc.s_name].gpuAddress, exportedFuncSegment.gpuAddress + symExportedFunc.s_offset);
EXPECT_EQ(relocatedSymbols[symGlobalVariable.s_name].gpuAddress, *reinterpret_cast<const uintptr_t *>(instructionSegment.data() + relocA.r_offset));
EXPECT_EQ(relocatedSymbols[symGlobalConstant.s_name].gpuAddress, *reinterpret_cast<const uintptr_t *>(instructionSegment.data() + relocB.r_offset));
EXPECT_EQ(relocatedSymbols[symExportedFunc.s_name].gpuAddress, *reinterpret_cast<const uintptr_t *>(instructionSegment.data() + relocC.r_offset));
auto funcGpuAddressAs64bit = static_cast<uint64_t>(relocatedSymbols[symExportedFunc.s_name].gpuAddress);
auto funcAddressLow = static_cast<uint32_t>(funcGpuAddressAs64bit & 0xffffffff);
auto funcAddressHigh = static_cast<uint32_t>((funcGpuAddressAs64bit >> 32) & 0xffffffff);
EXPECT_EQ(funcAddressLow, *reinterpret_cast<const uint32_t *>(instructionSegment.data() + relocCPartLow.r_offset));
EXPECT_EQ(initData, *reinterpret_cast<const uint32_t *>(instructionSegment.data() + relocCPartLow.r_offset - sizeof(uint32_t)));
EXPECT_EQ(initData, *reinterpret_cast<const uint32_t *>(instructionSegment.data() + relocCPartLow.r_offset + sizeof(uint32_t)));
EXPECT_EQ(funcAddressHigh, *reinterpret_cast<const uint32_t *>(instructionSegment.data() + relocCPartHigh.r_offset));
EXPECT_EQ(initData, *reinterpret_cast<const uint32_t *>(instructionSegment.data() + relocCPartHigh.r_offset - sizeof(uint32_t)));
EXPECT_EQ(initData, *reinterpret_cast<const uint32_t *>(instructionSegment.data() + relocCPartHigh.r_offset + sizeof(uint32_t)));
}
TEST(LinkerTests, givenInvalidSymbolOffsetWhenPatchingInstructionsThenRelocationFails) {
NEO::LinkerInput linkerInput;
vISA::GenSymEntry symGlobalVariable = {};
symGlobalVariable.s_name[0] = 'A';
symGlobalVariable.s_offset = 64;
symGlobalVariable.s_size = 16;
symGlobalVariable.s_type = vISA::GenSymType::S_GLOBAL_VAR;
bool decodeSymSuccess = linkerInput.decodeGlobalVariablesSymbolTable(&symGlobalVariable, 1);
EXPECT_TRUE(decodeSymSuccess);
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo globalVarSegment, globalConstSegment, exportedFuncSegment;
globalVarSegment.gpuAddress = 8;
globalVarSegment.segmentSize = symGlobalVariable.s_offset;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> instructionSegment;
instructionSegment.resize(64, 0);
NEO::Linker::PatchableSegment seg0;
seg0.hostPointer = instructionSegment.data();
seg0.segmentSize = instructionSegment.size();
NEO::Linker::PatchableSegments patchableInstructionSegments{seg0};
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
auto linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::Error, linkResult);
auto relocatedSymbols = linker.extractRelocatedSymbols();
EXPECT_EQ(0U, unresolvedExternals.size());
EXPECT_EQ(0U, relocatedSymbols.size());
globalVarSegment.segmentSize = symGlobalVariable.s_offset + symGlobalVariable.s_size;
linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments, unresolvedExternals,
nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
}
TEST(LinkerTests, givenInvalidRelocationOffsetThenPatchingOfInstructionsFails) {
NEO::LinkerInput linkerInput;
vISA::GenSymEntry symGlobalVariable = {};
symGlobalVariable.s_name[0] = 'A';
symGlobalVariable.s_offset = 64;
symGlobalVariable.s_size = 16;
symGlobalVariable.s_type = vISA::GenSymType::S_GLOBAL_VAR;
bool decodeSymSuccess = linkerInput.decodeGlobalVariablesSymbolTable(&symGlobalVariable, 1);
EXPECT_TRUE(decodeSymSuccess);
vISA::GenRelocEntry relocA = {};
relocA.r_symbol[0] = 'A';
relocA.r_offset = 32;
relocA.r_type = vISA::GenRelocType::R_SYM_ADDR;
bool decodeRelocSuccess = linkerInput.decodeRelocationTable(&relocA, 1, 0);
EXPECT_TRUE(decodeRelocSuccess);
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo globalVarSegment, globalConstSegment, exportedFuncSegment;
globalVarSegment.gpuAddress = 8;
globalVarSegment.segmentSize = symGlobalVariable.s_offset + symGlobalVariable.s_size;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> instructionSegment;
instructionSegment.resize(relocA.r_offset + sizeof(uintptr_t), 0);
NEO::Linker::PatchableSegment seg0;
seg0.hostPointer = instructionSegment.data();
seg0.segmentSize = relocA.r_offset;
NEO::Linker::PatchableSegments patchableInstructionSegments{seg0};
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
auto linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
auto relocatedSymbols = linker.extractRelocatedSymbols();
EXPECT_EQ(1U, relocatedSymbols.size());
ASSERT_EQ(1U, unresolvedExternals.size());
EXPECT_TRUE(unresolvedExternals[0].internalError);
patchableInstructionSegments[0].segmentSize = relocA.r_offset + sizeof(uintptr_t);
linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
}
TEST(LinkerTests, givenUnknownSymbolTypeWhenPatchingInstructionsThenRelocationFails) {
WhiteBox<NEO::LinkerInput> linkerInput;
vISA::GenSymEntry symGlobalVariable = {};
symGlobalVariable.s_name[0] = 'A';
symGlobalVariable.s_offset = 0;
symGlobalVariable.s_size = 16;
symGlobalVariable.s_type = vISA::GenSymType::S_GLOBAL_VAR;
bool decodeSymSuccess = linkerInput.decodeGlobalVariablesSymbolTable(&symGlobalVariable, 1);
EXPECT_TRUE(decodeSymSuccess);
vISA::GenRelocEntry relocA = {};
relocA.r_symbol[0] = 'A';
relocA.r_offset = 0;
relocA.r_type = vISA::GenRelocType::R_SYM_ADDR;
bool decodeRelocSuccess = linkerInput.decodeRelocationTable(&relocA, 1, 0);
EXPECT_TRUE(decodeRelocSuccess);
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo globalVarSegment, globalConstSegment, exportedFuncSegment;
globalVarSegment.gpuAddress = 8;
globalVarSegment.segmentSize = 64;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> instructionSegment;
instructionSegment.resize(64, 0);
NEO::Linker::PatchableSegment seg0;
seg0.hostPointer = instructionSegment.data();
seg0.segmentSize = instructionSegment.size();
NEO::Linker::PatchableSegments patchableInstructionSegments{seg0};
NEO::GraphicsAllocation *patchableGlobalVarSeg = nullptr;
NEO::GraphicsAllocation *patchableConstVarSeg = nullptr;
ASSERT_EQ(1U, linkerInput.symbols.count("A"));
linkerInput.symbols["A"].segment = NEO::SegmentType::Unknown;
auto linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::Error, linkResult);
auto relocatedSymbols = linker.extractRelocatedSymbols();
EXPECT_EQ(0U, relocatedSymbols.size());
ASSERT_EQ(0U, unresolvedExternals.size());
linkerInput.symbols["A"].segment = NEO::SegmentType::GlobalVariables;
linkResult = linker.link(globalVarSegment, globalConstSegment, exportedFuncSegment,
patchableGlobalVarSeg, patchableConstVarSeg, patchableInstructionSegments,
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
}
TEST(LinkerTests, givenInvalidSourceSegmentWhenPatchingDataSegmentsThenLinkerFails) {
WhiteBox<NEO::LinkerInput> linkerInput;
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo emptySegmentInfo;
NEO::MockGraphicsAllocation emptyPatchableSegment;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> nonEmptypatchableSegmentData;
nonEmptypatchableSegmentData.resize(64, 8U);
NEO::MockGraphicsAllocation nonEmptypatchableSegment{nonEmptypatchableSegmentData.data(), nonEmptypatchableSegmentData.size()};
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 0U;
relocInfo.symbolName = "aaa";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
linkerInput.dataRelocations.push_back(relocInfo);
{
linkerInput.traits.requiresPatchingOfGlobalVariablesBuffer = true;
linkerInput.traits.requiresPatchingOfGlobalConstantsBuffer = false;
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::GlobalVariables;
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::Unknown;
auto linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
EXPECT_EQ(1U, unresolvedExternals.size());
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::GlobalVariables;
unresolvedExternals.clear();
linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
}
{
linkerInput.traits.requiresPatchingOfGlobalVariablesBuffer = false;
linkerInput.traits.requiresPatchingOfGlobalConstantsBuffer = true;
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::GlobalConstants;
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::Unknown;
unresolvedExternals.clear();
auto linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&emptyPatchableSegment, &nonEmptypatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
EXPECT_EQ(1U, unresolvedExternals.size());
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::GlobalVariables;
unresolvedExternals.clear();
linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&emptyPatchableSegment, &nonEmptypatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
}
}
TEST(LinkerTests, givenUnknownRelocationSegmentWhenPatchingDataSegmentsThenLinkerFails) {
WhiteBox<NEO::LinkerInput> linkerInput;
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo emptySegmentInfo;
NEO::MockGraphicsAllocation emptyPatchableSegment;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> nonEmptypatchableSegmentData;
nonEmptypatchableSegmentData.resize(64, 8U);
NEO::MockGraphicsAllocation nonEmptypatchableSegment{nonEmptypatchableSegmentData.data(), nonEmptypatchableSegmentData.size()};
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 0U;
relocInfo.symbolName = "aaa";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
linkerInput.dataRelocations.push_back(relocInfo);
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::Unknown;
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::GlobalVariables;
linkerInput.traits.requiresPatchingOfGlobalVariablesBuffer = true;
auto linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
EXPECT_EQ(1U, unresolvedExternals.size());
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::GlobalVariables;
unresolvedExternals.clear();
linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
}
TEST(LinkerTests, givenRelocationTypeWithHighPartOfAddressWhenPatchingDataSegmentsThenLinkerFails) {
WhiteBox<NEO::LinkerInput> linkerInput;
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo emptySegmentInfo;
NEO::MockGraphicsAllocation emptyPatchableSegment;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> nonEmptypatchableSegmentData;
nonEmptypatchableSegmentData.resize(64, 8U);
NEO::MockGraphicsAllocation nonEmptypatchableSegment{nonEmptypatchableSegmentData.data(), nonEmptypatchableSegmentData.size()};
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 0U;
relocInfo.symbolName = "aaa";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::AddressHigh;
linkerInput.dataRelocations.push_back(relocInfo);
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::GlobalVariables;
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::GlobalVariables;
linkerInput.traits.requiresPatchingOfGlobalVariablesBuffer = true;
auto linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
EXPECT_EQ(1U, unresolvedExternals.size());
linkerInput.dataRelocations[0].type = NEO::LinkerInput::RelocationInfo::Type::AddressLow;
unresolvedExternals.clear();
linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
}
TEST(LinkerTests, givenValidSymbolsAndRelocationsThenDataSegmentsAreProperlyPatched) {
WhiteBox<NEO::LinkerInput> linkerInput;
NEO::Linker linker(linkerInput);
std::vector<char> globalConstantsSegmentData;
globalConstantsSegmentData.resize(128, 7U);
std::vector<char> globalVariablesSegmentData;
globalVariablesSegmentData.resize(256, 13U);
NEO::Linker::SegmentInfo globalConstantsSegmentInfo, globalVariablesSegmentInfo;
NEO::Linker::UnresolvedExternals unresolvedExternals;
globalConstantsSegmentInfo.gpuAddress = reinterpret_cast<uintptr_t>(globalConstantsSegmentData.data());
globalConstantsSegmentInfo.segmentSize = globalConstantsSegmentData.size();
NEO::MockGraphicsAllocation globalConstantsPatchableSegment{globalConstantsSegmentData.data(), globalConstantsSegmentData.size()};
globalVariablesSegmentInfo.gpuAddress = reinterpret_cast<uintptr_t>(globalVariablesSegmentData.data());
globalVariablesSegmentInfo.segmentSize = globalVariablesSegmentData.size();
NEO::MockGraphicsAllocation globalVariablesPatchableSegment{globalVariablesSegmentData.data(), globalVariablesSegmentData.size()};
NEO::LinkerInput::RelocationInfo relocationInfo[5];
// GlobalVar -> GlobalVar
relocationInfo[0].offset = 8U;
relocationInfo[0].relocationSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[0].symbolSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[0].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalConst -> GlobalVar
relocationInfo[1].offset = 24U;
relocationInfo[1].relocationSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[1].symbolSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[1].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalConst -> GlobalConst
relocationInfo[2].offset = 40U;
relocationInfo[2].relocationSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[2].symbolSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[2].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalVar -> GlobalConst
relocationInfo[3].offset = 56U;
relocationInfo[3].relocationSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[3].symbolSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[3].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalVar Low -> GlobalVar
relocationInfo[4].offset = 72;
relocationInfo[4].relocationSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[4].symbolSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[4].type = NEO::LinkerInput::RelocationInfo::Type::AddressLow;
uint32_t initValue = 0;
for (const auto &reloc : relocationInfo) {
linkerInput.addDataRelocationInfo(reloc);
void *dstRaw = (reloc.relocationSegment == NEO::SegmentType::GlobalVariables)
? globalVariablesPatchableSegment.getUnderlyingBuffer()
: globalConstantsPatchableSegment.getUnderlyingBuffer();
if (reloc.type == NEO::LinkerInput::RelocationInfo::Type::Address) {
*reinterpret_cast<uintptr_t *>(ptrOffset(dstRaw, static_cast<size_t>(reloc.offset))) = initValue * 4; // relocations to global data are currently based on patchIncrement, simulate init data
} else {
*reinterpret_cast<uint32_t *>(ptrOffset(dstRaw, static_cast<size_t>(reloc.offset))) = initValue * 4; // relocations to global data are currently based on patchIncrement, simulate init data
}
++initValue;
}
auto device = std::unique_ptr<NEO::MockDevice>(NEO::MockDevice::createWithNewExecutionEnvironment<NEO::MockDevice>(NEO::defaultHwInfo.get()));
auto linkResult = linker.link(globalVariablesSegmentInfo, globalConstantsSegmentInfo, {},
&globalVariablesPatchableSegment, &globalConstantsPatchableSegment, {},
unresolvedExternals, device.get(), globalConstantsPatchableSegment.getUnderlyingBuffer(),
globalVariablesPatchableSegment.getUnderlyingBuffer());
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
EXPECT_EQ(7U, *reinterpret_cast<uint8_t *>(globalConstantsPatchableSegment.getUnderlyingBuffer()));
EXPECT_EQ(13U, *reinterpret_cast<uint8_t *>(globalVariablesPatchableSegment.getUnderlyingBuffer()));
initValue = 0;
for (const auto &reloc : relocationInfo) {
void *srcRaw = (reloc.symbolSegment == NEO::SegmentType::GlobalVariables)
? globalVariablesPatchableSegment.getUnderlyingBuffer()
: globalConstantsPatchableSegment.getUnderlyingBuffer();
void *dstRaw = (reloc.relocationSegment == NEO::SegmentType::GlobalVariables)
? globalVariablesPatchableSegment.getUnderlyingBuffer()
: globalConstantsPatchableSegment.getUnderlyingBuffer();
uint8_t *src = reinterpret_cast<uint8_t *>(srcRaw);
uint8_t *dst = reinterpret_cast<uint8_t *>(dstRaw);
// make sure no buffer underflow occured
EXPECT_EQ(dst[0], dst[reloc.offset - 1]);
// check patch-incremented value
if (reloc.type == NEO::LinkerInput::RelocationInfo::Type::Address) {
// make sure no buffer overflow occured
EXPECT_EQ(dst[0], dst[reloc.offset + sizeof(uintptr_t)]);
EXPECT_EQ(reinterpret_cast<uintptr_t>(src) + initValue * 4, *reinterpret_cast<uintptr_t *>(dst + reloc.offset)) << initValue;
} else {
// make sure no buffer overflow occured
EXPECT_EQ(dst[0], dst[reloc.offset + sizeof(uint32_t)]);
EXPECT_EQ(static_cast<uint32_t>(reinterpret_cast<uintptr_t>(src)) + initValue * 4, *reinterpret_cast<uint32_t *>(dst + reloc.offset)) << initValue;
}
++initValue;
}
}
TEST(LinkerTests, givenValidSymbolsAndRelocationsWhenPatchin32bitBinaryThenDataSegmentsAreProperlyPatchedWithLowerPartOfTheAddress) {
WhiteBox<NEO::LinkerInput> linkerInput;
linkerInput.setPointerSize(NEO::LinkerInput::Traits::PointerSize::Ptr32bit);
NEO::Linker linker(linkerInput);
std::vector<char> globalConstantsSegmentData;
globalConstantsSegmentData.resize(128, 7U);
std::vector<char> globalVariablesSegmentData;
globalVariablesSegmentData.resize(256, 13U);
NEO::Linker::SegmentInfo globalConstantsSegmentInfo, globalVariablesSegmentInfo;
NEO::Linker::UnresolvedExternals unresolvedExternals;
globalConstantsSegmentInfo.gpuAddress = reinterpret_cast<uintptr_t>(globalConstantsSegmentData.data());
globalConstantsSegmentInfo.segmentSize = globalConstantsSegmentData.size();
NEO::MockGraphicsAllocation globalConstantsPatchableSegment{globalConstantsSegmentData.data(), globalConstantsSegmentData.size()};
globalVariablesSegmentInfo.gpuAddress = reinterpret_cast<uintptr_t>(globalVariablesSegmentData.data());
globalVariablesSegmentInfo.segmentSize = globalVariablesSegmentData.size();
NEO::MockGraphicsAllocation globalVariablesPatchableSegment{globalVariablesSegmentData.data(), globalVariablesSegmentData.size()};
NEO::LinkerInput::RelocationInfo relocationInfo[5];
// GlobalVar -> GlobalVar
relocationInfo[0].offset = 8U;
relocationInfo[0].relocationSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[0].symbolSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[0].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalConst -> GlobalVar
relocationInfo[1].offset = 24U;
relocationInfo[1].relocationSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[1].symbolSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[1].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalConst -> GlobalConst
relocationInfo[2].offset = 40U;
relocationInfo[2].relocationSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[2].symbolSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[2].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalVar -> GlobalConst
relocationInfo[3].offset = 56U;
relocationInfo[3].relocationSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[3].symbolSegment = NEO::SegmentType::GlobalConstants;
relocationInfo[3].type = NEO::LinkerInput::RelocationInfo::Type::Address;
// GlobalVar Low -> GlobalVar
relocationInfo[4].offset = 72;
relocationInfo[4].relocationSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[4].symbolSegment = NEO::SegmentType::GlobalVariables;
relocationInfo[4].type = NEO::LinkerInput::RelocationInfo::Type::AddressLow;
uint32_t initValue = 0;
for (const auto &reloc : relocationInfo) {
linkerInput.addDataRelocationInfo(reloc);
void *dstRaw = (reloc.relocationSegment == NEO::SegmentType::GlobalVariables)
? globalVariablesPatchableSegment.getUnderlyingBuffer()
: globalConstantsPatchableSegment.getUnderlyingBuffer();
*reinterpret_cast<uint32_t *>(ptrOffset(dstRaw, static_cast<size_t>(reloc.offset))) = initValue * 4; // relocations to global data are currently based on patchIncrement, simulate init data
++initValue;
}
auto device = std::unique_ptr<NEO::MockDevice>(NEO::MockDevice::createWithNewExecutionEnvironment<NEO::MockDevice>(NEO::defaultHwInfo.get()));
auto linkResult = linker.link(globalVariablesSegmentInfo, globalConstantsSegmentInfo, {},
&globalVariablesPatchableSegment, &globalConstantsPatchableSegment, {},
unresolvedExternals, device.get(), globalConstantsPatchableSegment.getUnderlyingBuffer(),
globalVariablesPatchableSegment.getUnderlyingBuffer());
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
EXPECT_EQ(7U, *reinterpret_cast<uint8_t *>(globalConstantsPatchableSegment.getUnderlyingBuffer()));
EXPECT_EQ(13U, *reinterpret_cast<uint8_t *>(globalVariablesPatchableSegment.getUnderlyingBuffer()));
initValue = 0;
for (const auto &reloc : relocationInfo) {
void *srcRaw = (reloc.symbolSegment == NEO::SegmentType::GlobalVariables)
? globalVariablesPatchableSegment.getUnderlyingBuffer()
: globalConstantsPatchableSegment.getUnderlyingBuffer();
void *dstRaw = (reloc.relocationSegment == NEO::SegmentType::GlobalVariables)
? globalVariablesPatchableSegment.getUnderlyingBuffer()
: globalConstantsPatchableSegment.getUnderlyingBuffer();
uint8_t *src = reinterpret_cast<uint8_t *>(srcRaw);
uint8_t *dst = reinterpret_cast<uint8_t *>(dstRaw);
// make sure no buffer under/overflow occured
EXPECT_EQ(dst[0], dst[reloc.offset - 1]);
EXPECT_EQ(dst[0], dst[reloc.offset + sizeof(uint32_t)]);
// check patch-incremented value
EXPECT_EQ(static_cast<uint32_t>(reinterpret_cast<uintptr_t>(src)) + initValue * 4, *reinterpret_cast<uint32_t *>(dst + reloc.offset)) << initValue;
++initValue;
}
}
TEST(LinkerTests, givenInvalidRelocationOffsetThenPatchingOfDataSegmentsFails) {
WhiteBox<NEO::LinkerInput> linkerInput;
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo emptySegmentInfo;
NEO::MockGraphicsAllocation emptyPatchableSegment;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> nonEmptypatchableSegmentData;
nonEmptypatchableSegmentData.resize(64, 8U);
NEO::MockGraphicsAllocation nonEmptypatchableSegment{nonEmptypatchableSegmentData.data(), nonEmptypatchableSegmentData.size()};
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 64U;
relocInfo.symbolName = "aaa";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
linkerInput.dataRelocations.push_back(relocInfo);
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::GlobalVariables;
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::GlobalVariables;
linkerInput.traits.requiresPatchingOfGlobalVariablesBuffer = true;
auto linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedPartially, linkResult);
EXPECT_EQ(1U, unresolvedExternals.size());
linkerInput.dataRelocations[0].offset = 32;
unresolvedExternals.clear();
linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
&nonEmptypatchableSegment, &emptyPatchableSegment, {},
unresolvedExternals, nullptr, nullptr, nullptr);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
}
TEST(LinkerTests, GivenAllocationInLocalMemoryWhichRequiresBlitterWhenPatchingDataSegmentsAllocationThenBlitterIsUsed) {
DebugManagerStateRestore restorer;
auto hwInfo = *defaultHwInfo;
hwInfo.capabilityTable.blitterOperationsSupported = true;
uint32_t blitsCounter = 0;
uint32_t expectedBlitsCount = 0;
auto mockBlitMemoryToAllocation = [&blitsCounter](const Device &device, GraphicsAllocation *memory, size_t offset, const void *hostPtr,
Vec3<size_t> size) -> BlitOperationResult {
blitsCounter++;
return BlitOperationResult::Success;
};
VariableBackup<BlitHelperFunctions::BlitMemoryToAllocationFunc> blitMemoryToAllocationFuncBackup{
&BlitHelperFunctions::blitMemoryToAllocation, mockBlitMemoryToAllocation};
LocalMemoryAccessMode localMemoryAccessModes[] = {
LocalMemoryAccessMode::Default,
LocalMemoryAccessMode::CpuAccessAllowed,
LocalMemoryAccessMode::CpuAccessDisallowed};
std::vector<uint8_t> initData;
initData.resize(64, 7U);
for (auto localMemoryAccessMode : localMemoryAccessModes) {
DebugManager.flags.ForceLocalMemoryAccessMode.set(static_cast<int32_t>(localMemoryAccessMode));
for (auto isLocalMemorySupported : ::testing::Bool()) {
DebugManager.flags.EnableLocalMemory.set(isLocalMemorySupported);
auto pDevice = std::unique_ptr<MockDevice>(MockDevice::createWithNewExecutionEnvironment<MockDevice>(&hwInfo));
MockSVMAllocsManager svmAllocsManager(pDevice->getMemoryManager(), false);
WhiteBox<NEO::LinkerInput> linkerInput;
NEO::Linker linker(linkerInput);
NEO::Linker::SegmentInfo emptySegmentInfo;
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<char> nonEmptypatchableSegmentData;
nonEmptypatchableSegmentData.resize(64, 8U);
auto pNonEmptypatchableSegment = allocateGlobalsSurface(&svmAllocsManager, *pDevice, nonEmptypatchableSegmentData.size(),
true /* constant */, nullptr /* linker input */,
nonEmptypatchableSegmentData.data());
NEO::LinkerInput::RelocationInfo relocInfo;
relocInfo.offset = 0U;
relocInfo.symbolName = "aaa";
relocInfo.type = NEO::LinkerInput::RelocationInfo::Type::Address;
linkerInput.dataRelocations.push_back(relocInfo);
linkerInput.dataRelocations[0].relocationSegment = NEO::SegmentType::GlobalVariables;
linkerInput.dataRelocations[0].symbolSegment = NEO::SegmentType::GlobalVariables;
linkerInput.traits.requiresPatchingOfGlobalVariablesBuffer = true;
uint64_t initData = 0x1234;
auto linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
pNonEmptypatchableSegment, pNonEmptypatchableSegment, {},
unresolvedExternals, pDevice.get(), &initData, &initData);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
linkerInput.dataRelocations[0].type = NEO::LinkerInput::RelocationInfo::Type::AddressLow;
linkResult = linker.link(emptySegmentInfo, emptySegmentInfo, emptySegmentInfo,
pNonEmptypatchableSegment, pNonEmptypatchableSegment, {},
unresolvedExternals, pDevice.get(), &initData, &initData);
EXPECT_EQ(NEO::LinkingStatus::LinkedFully, linkResult);
EXPECT_EQ(0U, unresolvedExternals.size());
if (pNonEmptypatchableSegment->isAllocatedInLocalMemoryPool() &&
(localMemoryAccessMode == LocalMemoryAccessMode::CpuAccessDisallowed)) {
auto blitsOnAllocationInitialization = 1;
auto blitsOnPatchingDataSegments = 2;
expectedBlitsCount += blitsOnAllocationInitialization + blitsOnPatchingDataSegments;
}
EXPECT_EQ(expectedBlitsCount, blitsCounter);
pDevice->getMemoryManager()->freeGraphicsMemory(pNonEmptypatchableSegment);
}
}
}
TEST(LinkerErrorMessageTests, whenListOfUnresolvedExternalsIsEmptyThenErrorTypeDefaultsToInternalError) {
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<std::string> segmentsNames{"kernel1", "kernel2"};
auto err = NEO::constructLinkerErrorMessage(unresolvedExternals, segmentsNames);
EXPECT_EQ(std::string("Internal linker error"), err);
}
TEST(LinkerErrorMessageTests, givenListOfUnresolvedExternalsThenSymbolNameOrSymbolSegmentTypeGetsEmbededInErrorMessage) {
NEO::Linker::UnresolvedExternals unresolvedExternals;
std::vector<std::string> segmentsNames{"kernel1", "kernel2"};
NEO::Linker::UnresolvedExternal unresolvedExternal = {};
unresolvedExternal.instructionsSegmentId = 1;
unresolvedExternal.internalError = false;
unresolvedExternal.unresolvedRelocation.offset = 64;
unresolvedExternal.unresolvedRelocation.symbolName = "arrayABC";
unresolvedExternal.unresolvedRelocation.relocationSegment = NEO::SegmentType::Instructions;
unresolvedExternals.push_back(unresolvedExternal);
auto err = NEO::constructLinkerErrorMessage(unresolvedExternals, segmentsNames);
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(unresolvedExternal.unresolvedRelocation.symbolName.c_str()));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(segmentsNames[unresolvedExternal.instructionsSegmentId].c_str()));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(std::to_string(unresolvedExternal.unresolvedRelocation.offset).c_str()));
EXPECT_THAT(err.c_str(), ::testing::Not(::testing::HasSubstr("internal error")));
unresolvedExternals[0].internalError = true;
err = NEO::constructLinkerErrorMessage(unresolvedExternals, segmentsNames);
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(unresolvedExternal.unresolvedRelocation.symbolName.c_str()));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(segmentsNames[unresolvedExternal.instructionsSegmentId].c_str()));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(std::to_string(unresolvedExternal.unresolvedRelocation.offset).c_str()));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr("internal linker error"));
err = NEO::constructLinkerErrorMessage(unresolvedExternals, {});
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(unresolvedExternal.unresolvedRelocation.symbolName.c_str()));
EXPECT_THAT(err.c_str(), ::testing::Not(::testing::HasSubstr(segmentsNames[unresolvedExternal.instructionsSegmentId].c_str())));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(std::to_string(unresolvedExternal.unresolvedRelocation.offset).c_str()));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr("internal linker error"));
unresolvedExternals[0].unresolvedRelocation.relocationSegment = NEO::SegmentType::GlobalConstants;
err = NEO::constructLinkerErrorMessage(unresolvedExternals, {});
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(NEO::asString(NEO::SegmentType::GlobalConstants)));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(std::to_string(unresolvedExternal.unresolvedRelocation.offset).c_str()));
unresolvedExternals[0].unresolvedRelocation.relocationSegment = NEO::SegmentType::GlobalVariables;
err = NEO::constructLinkerErrorMessage(unresolvedExternals, {});
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(NEO::asString(NEO::SegmentType::GlobalVariables)));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(std::to_string(unresolvedExternal.unresolvedRelocation.offset).c_str()));
unresolvedExternals[0].unresolvedRelocation.relocationSegment = NEO::SegmentType::Unknown;
err = NEO::constructLinkerErrorMessage(unresolvedExternals, {});
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(NEO::asString(NEO::SegmentType::Unknown)));
EXPECT_THAT(err.c_str(), ::testing::HasSubstr(std::to_string(unresolvedExternal.unresolvedRelocation.offset).c_str()));
}
TEST(RelocationsDebugMessageTests, givenEmptyListOfRelocatedSymbolsThenReturnsEmptyString) {
auto message = NEO::constructRelocationsDebugMessage({});
EXPECT_EQ(0U, message.size()) << message;
}
TEST(RelocationsDebugMessageTests, givenListOfRelocatedSymbolsThenReturnProperDebugMessage) {
NEO::Linker::RelocatedSymbolsMap symbols;
auto &funcSymbol = symbols["foo"];
auto &constDataSymbol = symbols["constInt"];
auto &globalVarSymbol = symbols["intX"];
funcSymbol.symbol.segment = NEO::SegmentType::Instructions;
funcSymbol.symbol.offset = 64U;
funcSymbol.symbol.size = 1024U;
funcSymbol.gpuAddress = 4096U;
constDataSymbol.symbol.segment = NEO::SegmentType::GlobalConstants;
constDataSymbol.symbol.offset = 32U;
constDataSymbol.symbol.size = 16U;
constDataSymbol.gpuAddress = 8U;
globalVarSymbol.symbol.segment = NEO::SegmentType::GlobalVariables;
globalVarSymbol.symbol.offset = 72U;
globalVarSymbol.symbol.size = 8U;
globalVarSymbol.gpuAddress = 256U;
auto message = NEO::constructRelocationsDebugMessage(symbols);
std::stringstream expected;
expected << "Relocations debug informations :\n";
for (const auto &symbol : symbols) {
if (symbol.first == "foo") {
expected << " * \"foo\" [1024 bytes] INSTRUCTIONS_SEGMENT@64 -> 0x1000 GPUVA\n";
} else if (symbol.first == "constInt") {
expected << " * \"constInt\" [16 bytes] GLOBAL_CONSTANTS_SEGMENT@32 -> 0x8 GPUVA\n";
} else {
expected << " * \"intX\" [8 bytes] GLOBAL_VARIABLES_SEGMENT@72 -> 0x100 GPUVA\n";
}
}
EXPECT_STREQ(expected.str().c_str(), message.c_str());
}
TEST(LinkerTests, GivenDebugDataWhenApplyingDebugDataRelocationsThenRelocationsAreAppliedInMemory) {
NEO::Elf::ElfFileHeader<NEO::Elf::EI_CLASS_64> header;
header.shOff = header.ehSize;
header.shNum = 4;
header.shStrNdx = 0;
NEO::Elf::ElfSectionHeader<NEO::Elf::EI_CLASS_64> sectionHeader0;
sectionHeader0.size = 80;
sectionHeader0.offset = 80;
NEO::Elf::ElfSectionHeader<NEO::Elf::EI_CLASS_64> sectionHeader1;
sectionHeader1.size = 80;
sectionHeader1.offset = 160;
NEO::Elf::ElfSectionHeader<NEO::Elf::EI_CLASS_64> sectionHeader2;
sectionHeader2.size = 80;
sectionHeader2.offset = 240;
NEO::Elf::ElfSectionHeader<NEO::Elf::EI_CLASS_64> sectionHeader3;
sectionHeader3.size = 80;
sectionHeader3.offset = 320;
NEO::Elf::ElfSectionHeader<NEO::Elf::EI_CLASS_64> sectionHeader4;
sectionHeader4.size = 80;
sectionHeader4.offset = 400;
MockElf<NEO::Elf::EI_CLASS_64> elf64;
elf64.elfFileHeader = &header;
uint64_t dummyData[100];
uint8_t *storage = reinterpret_cast<uint8_t *>(dummyData);
elf64.sectionHeaders.push_back({&sectionHeader0, {&storage[80], 80}});
elf64.sectionHeaders.push_back({&sectionHeader1, {&storage[160], 80}});
elf64.sectionHeaders.push_back({&sectionHeader2, {&storage[240], 80}});
elf64.sectionHeaders.push_back({&sectionHeader3, {&storage[320], 80}});
elf64.sectionHeaders.push_back({&sectionHeader4, {&storage[400], 80}});
std::unordered_map<uint32_t, std::string> sectionNames;
sectionNames[0] = ".text";
sectionNames[1] = ".data.global";
sectionNames[2] = ".debug_info";
sectionNames[3] = ".debug_abbrev";
sectionNames[4] = ".debug_line";
sectionNames[5] = ".data.const";
elf64.setupSecionNames(std::move(sectionNames));
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc0 = {};
reloc0.offset = 64;
reloc0.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc0.symbolName = ".debug_abbrev";
reloc0.symbolSectionIndex = 3;
reloc0.symbolTableIndex = 0;
reloc0.targetSectionIndex = 2;
reloc0.addend = 0;
elf64.debugInfoRelocations.emplace_back(reloc0);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc1 = {};
reloc1.offset = 32;
reloc1.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_32);
reloc1.symbolName = ".debug_line";
reloc1.symbolSectionIndex = 4;
reloc1.symbolTableIndex = 0;
reloc1.targetSectionIndex = 2;
reloc1.addend = 4;
elf64.debugInfoRelocations.emplace_back(reloc1);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc2 = {};
reloc2.offset = 32;
reloc2.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc2.symbolName = ".text";
reloc2.symbolSectionIndex = 0;
reloc2.symbolTableIndex = 0;
reloc2.targetSectionIndex = 4;
reloc2.addend = 18;
elf64.debugInfoRelocations.emplace_back(reloc2);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc3 = {};
reloc3.offset = 0;
reloc3.relocType = static_cast<uint32_t>(Elf::RELOCATION_X8664_TYPE::R_X8664_64);
reloc3.symbolName = ".data";
reloc3.symbolSectionIndex = 1;
reloc3.symbolTableIndex = 0;
reloc3.targetSectionIndex = 4;
reloc3.addend = 55;
elf64.debugInfoRelocations.emplace_back(reloc3);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc4 = {};
reloc4.offset = 8;
reloc4.relocType = static_cast<uint32_t>(0);
reloc4.symbolName = ".text";
reloc4.symbolSectionIndex = 0;
reloc4.symbolTableIndex = 0;
reloc4.targetSectionIndex = 4;
reloc4.addend = 77;
elf64.debugInfoRelocations.emplace_back(reloc4);
NEO::Elf::Elf<NEO::Elf::EI_CLASS_64>::RelocationInfo reloc5 = {};
reloc5.offset = 16;
reloc5.relocType = static_cast<uint32_t>(1);
reloc5.symbolName = ".data.const";
reloc5.symbolSectionIndex = 5;
reloc5.symbolTableIndex = 0;
reloc5.targetSectionIndex = 4;
reloc5.addend = 20;
elf64.debugInfoRelocations.emplace_back(reloc5);
uint64_t *relocInDebugLine = reinterpret_cast<uint64_t *>(&storage[400]);
*relocInDebugLine = 0;
uint64_t *relocInDebugLine2 = reinterpret_cast<uint64_t *>(&storage[408]);
*relocInDebugLine2 = 0;
uint64_t *relocInDebugLine5 = reinterpret_cast<uint64_t *>(&storage[416]);
*relocInDebugLine5 = 0;
NEO::Elf::ElfSymbolEntry<NEO::Elf::EI_CLASS_64> symbol;
symbol.value = 0;
elf64.symbolTable.push_back(symbol);
NEO::Linker::SegmentInfo text = {static_cast<uintptr_t>(0x80001000), 0x10000};
NEO::Linker::SegmentInfo dataGlobal = {static_cast<uintptr_t>(0x123000), 0x10000};
NEO::Linker::SegmentInfo dataConst = {static_cast<uintptr_t>(0xabc000), 0x10000};
NEO::Linker::applyDebugDataRelocations(elf64, {storage, sizeof(dummyData)}, text, dataGlobal, dataConst);
auto reloc0Location = reinterpret_cast<const uint64_t *>(&elf64.sectionHeaders[reloc0.targetSectionIndex].data[static_cast<size_t>(reloc0.offset)]);
auto reloc1Location = reinterpret_cast<const uint32_t *>(&elf64.sectionHeaders[reloc1.targetSectionIndex].data[static_cast<size_t>(reloc1.offset)]);
auto reloc2Location = reinterpret_cast<const uint64_t *>(&elf64.sectionHeaders[reloc2.targetSectionIndex].data[static_cast<size_t>(reloc2.offset)]);
auto reloc3Location = reinterpret_cast<const uint64_t *>(&elf64.sectionHeaders[reloc3.targetSectionIndex].data[static_cast<size_t>(reloc3.offset)]);
auto reloc4Location = reinterpret_cast<const uint64_t *>(&elf64.sectionHeaders[reloc4.targetSectionIndex].data[static_cast<size_t>(reloc4.offset)]);
auto reloc5Location = reinterpret_cast<const uint64_t *>(&elf64.sectionHeaders[reloc5.targetSectionIndex].data[static_cast<size_t>(reloc5.offset)]);
uint64_t expectedValue0 = reloc0.addend;
uint64_t expectedValue1 = reloc1.addend;
auto expectedValue2 = uint64_t(0x80001000) + reloc2.addend;
uint64_t expectedValue3 = dataGlobal.gpuAddress + reloc3.addend;
uint64_t expectedValue5 = dataConst.gpuAddress + reloc5.addend;
EXPECT_EQ(expectedValue0, *reloc0Location);
EXPECT_EQ(expectedValue1, *reloc1Location);
EXPECT_EQ(expectedValue2, *reloc2Location);
EXPECT_EQ(expectedValue3, *reloc3Location);
EXPECT_EQ(0u, *reloc4Location);
EXPECT_EQ(expectedValue5, *reloc5Location);
}
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