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-rw-r--r--lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp107
1 files changed, 68 insertions, 39 deletions
diff --git a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
index 3204b81..6ba24b9 100644
--- a/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
+++ b/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
@@ -11,7 +11,6 @@
//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "dyld"
#include "RuntimeDyldELF.h"
#include "JITRegistrar.h"
#include "ObjectImageCommon.h"
@@ -29,6 +28,8 @@
using namespace llvm;
using namespace llvm::object;
+#define DEBUG_TYPE "dyld"
+
namespace {
static inline error_code check(error_code Err) {
@@ -50,7 +51,12 @@ template <class ELFT> class DyldELFObject : public ELFObjectFile<ELFT> {
typedef typename ELFDataTypeTypedefHelper<ELFT>::value_type addr_type;
+ std::unique_ptr<ObjectFile> UnderlyingFile;
+
public:
+ DyldELFObject(std::unique_ptr<ObjectFile> UnderlyingFile,
+ MemoryBuffer *Wrapper, error_code &ec);
+
DyldELFObject(MemoryBuffer *Wrapper, error_code &ec);
void updateSectionAddress(const SectionRef &Sec, uint64_t Addr);
@@ -67,13 +73,11 @@ public:
};
template <class ELFT> class ELFObjectImage : public ObjectImageCommon {
-protected:
- DyldELFObject<ELFT> *DyldObj;
bool Registered;
public:
- ELFObjectImage(ObjectBuffer *Input, DyldELFObject<ELFT> *Obj)
- : ObjectImageCommon(Input, Obj), DyldObj(Obj), Registered(false) {}
+ ELFObjectImage(ObjectBuffer *Input, std::unique_ptr<DyldELFObject<ELFT>> Obj)
+ : ObjectImageCommon(Input, std::move(Obj)), Registered(false) {}
virtual ~ELFObjectImage() {
if (Registered)
@@ -83,11 +87,13 @@ public:
// Subclasses can override these methods to update the image with loaded
// addresses for sections and common symbols
void updateSectionAddress(const SectionRef &Sec, uint64_t Addr) override {
- DyldObj->updateSectionAddress(Sec, Addr);
+ static_cast<DyldELFObject<ELFT>*>(getObjectFile())
+ ->updateSectionAddress(Sec, Addr);
}
void updateSymbolAddress(const SymbolRef &Sym, uint64_t Addr) override {
- DyldObj->updateSymbolAddress(Sym, Addr);
+ static_cast<DyldELFObject<ELFT>*>(getObjectFile())
+ ->updateSymbolAddress(Sym, Addr);
}
void registerWithDebugger() override {
@@ -109,6 +115,14 @@ DyldELFObject<ELFT>::DyldELFObject(MemoryBuffer *Wrapper, error_code &ec)
}
template <class ELFT>
+DyldELFObject<ELFT>::DyldELFObject(std::unique_ptr<ObjectFile> UnderlyingFile,
+ MemoryBuffer *Wrapper, error_code &ec)
+ : ELFObjectFile<ELFT>(Wrapper, ec),
+ UnderlyingFile(std::move(UnderlyingFile)) {
+ this->isDyldELFObject = true;
+}
+
+template <class ELFT>
void DyldELFObject<ELFT>::updateSectionAddress(const SectionRef &Sec,
uint64_t Addr) {
DataRefImpl ShdrRef = Sec.getRawDataRefImpl();
@@ -164,30 +178,36 @@ void RuntimeDyldELF::deregisterEHFrames() {
}
ObjectImage *
-RuntimeDyldELF::createObjectImageFromFile(object::ObjectFile *ObjFile) {
+RuntimeDyldELF::createObjectImageFromFile(std::unique_ptr<object::ObjectFile> ObjFile) {
if (!ObjFile)
- return NULL;
+ return nullptr;
error_code ec;
MemoryBuffer *Buffer =
MemoryBuffer::getMemBuffer(ObjFile->getData(), "", false);
if (ObjFile->getBytesInAddress() == 4 && ObjFile->isLittleEndian()) {
- DyldELFObject<ELFType<support::little, 2, false>> *Obj =
- new DyldELFObject<ELFType<support::little, 2, false>>(Buffer, ec);
- return new ELFObjectImage<ELFType<support::little, 2, false>>(NULL, Obj);
+ auto Obj =
+ llvm::make_unique<DyldELFObject<ELFType<support::little, 2, false>>>(
+ std::move(ObjFile), Buffer, ec);
+ return new ELFObjectImage<ELFType<support::little, 2, false>>(
+ nullptr, std::move(Obj));
} else if (ObjFile->getBytesInAddress() == 4 && !ObjFile->isLittleEndian()) {
- DyldELFObject<ELFType<support::big, 2, false>> *Obj =
- new DyldELFObject<ELFType<support::big, 2, false>>(Buffer, ec);
- return new ELFObjectImage<ELFType<support::big, 2, false>>(NULL, Obj);
+ auto Obj =
+ llvm::make_unique<DyldELFObject<ELFType<support::big, 2, false>>>(
+ std::move(ObjFile), Buffer, ec);
+ return new ELFObjectImage<ELFType<support::big, 2, false>>(nullptr, std::move(Obj));
} else if (ObjFile->getBytesInAddress() == 8 && !ObjFile->isLittleEndian()) {
- DyldELFObject<ELFType<support::big, 2, true>> *Obj =
- new DyldELFObject<ELFType<support::big, 2, true>>(Buffer, ec);
- return new ELFObjectImage<ELFType<support::big, 2, true>>(NULL, Obj);
+ auto Obj = llvm::make_unique<DyldELFObject<ELFType<support::big, 2, true>>>(
+ std::move(ObjFile), Buffer, ec);
+ return new ELFObjectImage<ELFType<support::big, 2, true>>(nullptr,
+ std::move(Obj));
} else if (ObjFile->getBytesInAddress() == 8 && ObjFile->isLittleEndian()) {
- DyldELFObject<ELFType<support::little, 2, true>> *Obj =
- new DyldELFObject<ELFType<support::little, 2, true>>(Buffer, ec);
- return new ELFObjectImage<ELFType<support::little, 2, true>>(NULL, Obj);
+ auto Obj =
+ llvm::make_unique<DyldELFObject<ELFType<support::little, 2, true>>>(
+ std::move(ObjFile), Buffer, ec);
+ return new ELFObjectImage<ELFType<support::little, 2, true>>(
+ nullptr, std::move(Obj));
} else
llvm_unreachable("Unexpected ELF format");
}
@@ -201,28 +221,29 @@ ObjectImage *RuntimeDyldELF::createObjectImage(ObjectBuffer *Buffer) {
error_code ec;
if (Ident.first == ELF::ELFCLASS32 && Ident.second == ELF::ELFDATA2LSB) {
- DyldELFObject<ELFType<support::little, 4, false>> *Obj =
- new DyldELFObject<ELFType<support::little, 4, false>>(
+ auto Obj =
+ llvm::make_unique<DyldELFObject<ELFType<support::little, 4, false>>>(
Buffer->getMemBuffer(), ec);
- return new ELFObjectImage<ELFType<support::little, 4, false>>(Buffer, Obj);
+ return new ELFObjectImage<ELFType<support::little, 4, false>>(
+ Buffer, std::move(Obj));
} else if (Ident.first == ELF::ELFCLASS32 &&
Ident.second == ELF::ELFDATA2MSB) {
- DyldELFObject<ELFType<support::big, 4, false>> *Obj =
- new DyldELFObject<ELFType<support::big, 4, false>>(
+ auto Obj =
+ llvm::make_unique<DyldELFObject<ELFType<support::big, 4, false>>>(
Buffer->getMemBuffer(), ec);
- return new ELFObjectImage<ELFType<support::big, 4, false>>(Buffer, Obj);
+ return new ELFObjectImage<ELFType<support::big, 4, false>>(Buffer,
+ std::move(Obj));
} else if (Ident.first == ELF::ELFCLASS64 &&
Ident.second == ELF::ELFDATA2MSB) {
- DyldELFObject<ELFType<support::big, 8, true>> *Obj =
- new DyldELFObject<ELFType<support::big, 8, true>>(
- Buffer->getMemBuffer(), ec);
- return new ELFObjectImage<ELFType<support::big, 8, true>>(Buffer, Obj);
+ auto Obj = llvm::make_unique<DyldELFObject<ELFType<support::big, 8, true>>>(
+ Buffer->getMemBuffer(), ec);
+ return new ELFObjectImage<ELFType<support::big, 8, true>>(Buffer, std::move(Obj));
} else if (Ident.first == ELF::ELFCLASS64 &&
Ident.second == ELF::ELFDATA2LSB) {
- DyldELFObject<ELFType<support::little, 8, true>> *Obj =
- new DyldELFObject<ELFType<support::little, 8, true>>(
+ auto Obj =
+ llvm::make_unique<DyldELFObject<ELFType<support::little, 8, true>>>(
Buffer->getMemBuffer(), ec);
- return new ELFObjectImage<ELFType<support::little, 8, true>>(Buffer, Obj);
+ return new ELFObjectImage<ELFType<support::little, 8, true>>(Buffer, std::move(Obj));
} else
llvm_unreachable("Unexpected ELF format");
}
@@ -845,6 +866,8 @@ void RuntimeDyldELF::resolveRelocation(const SectionEntry &Section,
break;
case Triple::aarch64:
case Triple::aarch64_be:
+ case Triple::arm64:
+ case Triple::arm64_be:
resolveAArch64Relocation(Section, Offset, Value, Type, Addend);
break;
case Triple::arm: // Fall through.
@@ -950,7 +973,8 @@ relocation_iterator RuntimeDyldELF::processRelocationRef(
DEBUG(dbgs() << "\t\tSectionID: " << SectionID << " Offset: " << Offset
<< "\n");
- if (Arch == Triple::aarch64 &&
+ if ((Arch == Triple::aarch64 || Arch == Triple::aarch64_be ||
+ Arch == Triple::arm64 || Arch == Triple::arm64_be) &&
(RelType == ELF::R_AARCH64_CALL26 || RelType == ELF::R_AARCH64_JUMP26)) {
// This is an AArch64 branch relocation, need to use a stub function.
DEBUG(dbgs() << "\t\tThis is an AArch64 branch relocation.");
@@ -1151,7 +1175,7 @@ relocation_iterator RuntimeDyldELF::processRelocationRef(
// Extra check to avoid relocation againt empty symbols (usually
// the R_PPC64_TOC).
if (SymType != SymbolRef::ST_Unknown && TargetName.empty())
- Value.SymbolName = NULL;
+ Value.SymbolName = nullptr;
if (Value.SymbolName)
addRelocationForSymbol(RE, Value.SymbolName);
@@ -1283,7 +1307,8 @@ void RuntimeDyldELF::updateGOTEntries(StringRef Name, uint64_t Addr) {
for (it = GOTs.begin(); it != end; ++it) {
GOTRelocations &GOTEntries = it->second;
for (int i = 0, e = GOTEntries.size(); i != e; ++i) {
- if (GOTEntries[i].SymbolName != 0 && GOTEntries[i].SymbolName == Name) {
+ if (GOTEntries[i].SymbolName != nullptr &&
+ GOTEntries[i].SymbolName == Name) {
GOTEntries[i].Offset = Addr;
}
}
@@ -1297,6 +1322,9 @@ size_t RuntimeDyldELF::getGOTEntrySize() {
switch (Arch) {
case Triple::x86_64:
case Triple::aarch64:
+ case Triple::aarch64_be:
+ case Triple::arm64:
+ case Triple::arm64_be:
case Triple::ppc64:
case Triple::ppc64le:
case Triple::systemz:
@@ -1331,7 +1359,7 @@ uint64_t RuntimeDyldELF::findGOTEntry(uint64_t LoadAddress, uint64_t Offset) {
// Find the matching entry in our vector.
uint64_t SymbolOffset = 0;
for (int i = 0, e = GOTEntries.size(); i != e; ++i) {
- if (GOTEntries[i].SymbolName == 0) {
+ if (!GOTEntries[i].SymbolName) {
if (getSectionLoadAddress(GOTEntries[i].SectionID) == LoadAddress &&
GOTEntries[i].Offset == Offset) {
GOTIndex = i;
@@ -1369,7 +1397,8 @@ uint64_t RuntimeDyldELF::findGOTEntry(uint64_t LoadAddress, uint64_t Offset) {
return 0;
}
-void RuntimeDyldELF::finalizeLoad(ObjSectionToIDMap &SectionMap) {
+void RuntimeDyldELF::finalizeLoad(ObjectImage &ObjImg,
+ ObjSectionToIDMap &SectionMap) {
// If necessary, allocate the global offset table
if (MemMgr) {
// Allocate the GOT if necessary
generated by cgit v1.1 at 2024-05-21 22:31:14 +0000