MachOPlatform.cpp | Explore in Territory

//===------ MachOPlatform.cpp - Utilities for executing MachO in Orc ------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "llvm/ExecutionEngine/Orc/MachOPlatform.h"

#include "llvm/BinaryFormat/MachO.h"
#include "llvm/ExecutionEngine/JITLink/MachO.h"
#include "llvm/ExecutionEngine/JITLink/aarch64.h"
#include "llvm/ExecutionEngine/JITLink/x86_64.h"
#include "llvm/ExecutionEngine/Orc/DebugUtils.h"
#include "llvm/ExecutionEngine/Orc/ExecutionUtils.h"
#include "llvm/ExecutionEngine/Orc/LookupAndRecordAddrs.h"
#include "llvm/ExecutionEngine/Orc/MachOBuilder.h"
#include "llvm/ExecutionEngine/Orc/Shared/ObjectFormats.h"
#include "llvm/Support/BinaryByteStream.h"
#include "llvm/Support/Debug.h"
#include <optional>

#define DEBUG_TYPE …

usingnamespacellvm;
usingnamespacellvm::orc;
usingnamespacellvm::orc::shared;

namespace llvm {
namespace orc {
namespace shared {

SPSMachOJITDylibDepInfo;
SPSMachOJITDylibDepInfoMap;

class SPSMachOExecutorSymbolFlags;

template <>
class SPSSerializationTraits<SPSMachOJITDylibDepInfo,
                             MachOPlatform::MachOJITDylibDepInfo> { … };

template <>
class SPSSerializationTraits<SPSMachOExecutorSymbolFlags,
                             MachOPlatform::MachOExecutorSymbolFlags> { … };

} // namespace shared
} // namespace orc
} // namespace llvm

namespace {

SPSRegisterSymbolsArgs;

std::unique_ptr<jitlink::LinkGraph> createPlatformGraph(MachOPlatform &MOP,
                                                        std::string Name) { … }

// Creates a Bootstrap-Complete LinkGraph to run deferred actions.
class MachOPlatformCompleteBootstrapMaterializationUnit
    : public MaterializationUnit { … };

static StringRef ObjCRuntimeObjectSectionsData[] = …;

static StringRef ObjCRuntimeObjectSectionsText[] = …;

static StringRef ObjCRuntimeObjectSectionName = …;

static StringRef ObjCImageInfoSymbolName = …;

struct ObjCImageInfoFlags { … };
} // end anonymous namespace

namespace llvm {
namespace orc {

std::optional<MachOPlatform::HeaderOptions::BuildVersionOpts>
MachOPlatform::HeaderOptions::BuildVersionOpts::fromTriple(const Triple &TT,
                                                           uint32_t MinOS,
                                                           uint32_t SDK) { … }

Expected<std::unique_ptr<MachOPlatform>>
MachOPlatform::Create(ObjectLinkingLayer &ObjLinkingLayer, JITDylib &PlatformJD,
                      std::unique_ptr<DefinitionGenerator> OrcRuntime,
                      HeaderOptions PlatformJDOpts,
                      MachOHeaderMUBuilder BuildMachOHeaderMU,
                      std::optional<SymbolAliasMap> RuntimeAliases) { … }

Expected<std::unique_ptr<MachOPlatform>>
MachOPlatform::Create(ObjectLinkingLayer &ObjLinkingLayer, JITDylib &PlatformJD,
                      const char *OrcRuntimePath, HeaderOptions PlatformJDOpts,
                      MachOHeaderMUBuilder BuildMachOHeaderMU,
                      std::optional<SymbolAliasMap> RuntimeAliases) { … }

Error MachOPlatform::setupJITDylib(JITDylib &JD) { … }

Error MachOPlatform::setupJITDylib(JITDylib &JD, HeaderOptions Opts) { … }

Error MachOPlatform::teardownJITDylib(JITDylib &JD) { … }

Error MachOPlatform::notifyAdding(ResourceTracker &RT,
                                  const MaterializationUnit &MU) { … }

Error MachOPlatform::notifyRemoving(ResourceTracker &RT) { … }

static void addAliases(ExecutionSession &ES, SymbolAliasMap &Aliases,
                       ArrayRef<std::pair<const char *, const char *>> AL) { … }

SymbolAliasMap MachOPlatform::standardPlatformAliases(ExecutionSession &ES) { … }

ArrayRef<std::pair<const char *, const char *>>
MachOPlatform::requiredCXXAliases() { … }

ArrayRef<std::pair<const char *, const char *>>
MachOPlatform::standardRuntimeUtilityAliases() { … }

bool MachOPlatform::supportedTarget(const Triple &TT) { … }

jitlink::Edge::Kind MachOPlatform::getPointerEdgeKind(jitlink::LinkGraph &G) { … }

MachOPlatform::MachOExecutorSymbolFlags
MachOPlatform::flagsForSymbol(jitlink::Symbol &Sym) { … }

MachOPlatform::MachOPlatform(
    ObjectLinkingLayer &ObjLinkingLayer, JITDylib &PlatformJD,
    std::unique_ptr<DefinitionGenerator> OrcRuntimeGenerator,
    HeaderOptions PlatformJDOpts, MachOHeaderMUBuilder BuildMachOHeaderMU,
    Error &Err)
    : … { … }

Error MachOPlatform::associateRuntimeSupportFunctions() { … }

void MachOPlatform::pushInitializersLoop(
    PushInitializersSendResultFn SendResult, JITDylibSP JD) { … }

void MachOPlatform::rt_pushInitializers(PushInitializersSendResultFn SendResult,
                                        ExecutorAddr JDHeaderAddr) { … }

void MachOPlatform::rt_pushSymbols(
    PushSymbolsInSendResultFn SendResult, ExecutorAddr Handle,
    const std::vector<std::pair<StringRef, bool>> &SymbolNames) { … }

Expected<uint64_t> MachOPlatform::createPThreadKey() { … }

void MachOPlatform::MachOPlatformPlugin::modifyPassConfig(
    MaterializationResponsibility &MR, jitlink::LinkGraph &LG,
    jitlink::PassConfiguration &Config) { … }

Error MachOPlatform::MachOPlatformPlugin::bootstrapPipelineStart(
    jitlink::LinkGraph &G) { … }

Error MachOPlatform::MachOPlatformPlugin::
    bootstrapPipelineRecordRuntimeFunctions(jitlink::LinkGraph &G) { … }

Error MachOPlatform::MachOPlatformPlugin::bootstrapPipelineEnd(
    jitlink::LinkGraph &G) { … }

Error MachOPlatform::MachOPlatformPlugin::associateJITDylibHeaderSymbol(
    jitlink::LinkGraph &G, MaterializationResponsibility &MR) { … }

Error MachOPlatform::MachOPlatformPlugin::preserveImportantSections(
    jitlink::LinkGraph &G, MaterializationResponsibility &MR) { … }

Error MachOPlatform::MachOPlatformPlugin::processObjCImageInfo(
    jitlink::LinkGraph &G, MaterializationResponsibility &MR) { … }

Error MachOPlatform::MachOPlatformPlugin::mergeImageInfoFlags(
    jitlink::LinkGraph &G, MaterializationResponsibility &MR,
    ObjCImageInfo &Info, uint32_t NewFlags) { … }

Error MachOPlatform::MachOPlatformPlugin::fixTLVSectionsAndEdges(
    jitlink::LinkGraph &G, JITDylib &JD) { … }

std::optional<MachOPlatform::MachOPlatformPlugin::UnwindSections>
MachOPlatform::MachOPlatformPlugin::findUnwindSectionInfo(
    jitlink::LinkGraph &G) { … }

Error MachOPlatform::MachOPlatformPlugin::registerObjectPlatformSections(
    jitlink::LinkGraph &G, JITDylib &JD, bool InBootstrapPhase) { … }

Error MachOPlatform::MachOPlatformPlugin::createObjCRuntimeObject(
    jitlink::LinkGraph &G) { … }

Error MachOPlatform::MachOPlatformPlugin::populateObjCRuntimeObject(
    jitlink::LinkGraph &G, MaterializationResponsibility &MR) { … }

Error MachOPlatform::MachOPlatformPlugin::prepareSymbolTableRegistration(
    jitlink::LinkGraph &G, JITSymTabVector &JITSymTabInfo) { … }

Error MachOPlatform::MachOPlatformPlugin::addSymbolTableRegistration(
    jitlink::LinkGraph &G, MaterializationResponsibility &MR,
    JITSymTabVector &JITSymTabInfo, bool InBootstrapPhase) { … }

template <typename MachOTraits>
jitlink::Block &createHeaderBlock(MachOPlatform &MOP,
                                  const MachOPlatform::HeaderOptions &Opts,
                                  JITDylib &JD, jitlink::LinkGraph &G,
                                  jitlink::Section &HeaderSection) { … }

SimpleMachOHeaderMU::SimpleMachOHeaderMU(MachOPlatform &MOP,
                                         SymbolStringPtr HeaderStartSymbol,
                                         MachOPlatform::HeaderOptions Opts)
    : … { … }

void SimpleMachOHeaderMU::materialize(
    std::unique_ptr<MaterializationResponsibility> R) { … }

void SimpleMachOHeaderMU::discard(const JITDylib &JD,
                                  const SymbolStringPtr &Sym) { … }

void SimpleMachOHeaderMU::addMachOHeader(
    JITDylib &JD, jitlink::LinkGraph &G,
    const SymbolStringPtr &InitializerSymbol) { … }

jitlink::Block &
SimpleMachOHeaderMU::createHeaderBlock(JITDylib &JD, jitlink::LinkGraph &G,
                                       jitlink::Section &HeaderSection) { … }

MaterializationUnit::Interface SimpleMachOHeaderMU::createHeaderInterface(
    MachOPlatform &MOP, const SymbolStringPtr &HeaderStartSymbol) { … }

MachOHeaderInfo getMachOHeaderInfoFromTriple(const Triple &TT) { … }

} // End namespace orc.
} // End namespace llvm.
llvm/llvm/lib/ExecutionEngine/Orc/MachOPlatform.cpp
