[llvm-commits] [llvm] r154610 - in /llvm/trunk: include/llvm/Object/ lib/ExecutionEngine/MCJIT/ lib/ExecutionEngine/RuntimeDyld/ lib/Object/ test/ExecutionEngine/
Craig Topper
craig.topper at gmail.com
Thu Apr 12 22:48:32 PDT 2012
This seems to have caused two copies of getElfArchType to appear in the
tree. One in ELF.h and one in lib/Object/ELFObjectWriter.cpp. The code in
that file is now finding the copy in ELF.h and leaving the copy in the
anonymous namespace in ELFObjectWriter unused leading to a warning.
On Thu, Apr 12, 2012 at 1:13 PM, Preston Gurd <preston.gurd at intel.com>wrote:
> Author: pgurd
> Date: Thu Apr 12 15:13:57 2012
> New Revision: 154610
>
> URL: http://llvm.org/viewvc/llvm-project?rev=154610&view=rev
> Log:
> This patch improves the MCJIT runtime dynamic loader by adding new handling
> of zero-initialized sections, virtual sections and common symbols
> and preventing the loading of sections which are not required for
> execution such as debug information.
>
> Patch by Andy Kaylor!
>
>
> Modified:
> llvm/trunk/include/llvm/Object/COFF.h
> llvm/trunk/include/llvm/Object/ELF.h
> llvm/trunk/include/llvm/Object/MachO.h
> llvm/trunk/include/llvm/Object/ObjectFile.h
> llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp
> llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
> llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
> llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
> llvm/trunk/lib/Object/COFFObjectFile.cpp
> llvm/trunk/lib/Object/MachOObjectFile.cpp
> llvm/trunk/test/ExecutionEngine/2002-12-16-ArgTest.ll
> llvm/trunk/test/ExecutionEngine/2003-01-04-ArgumentBug.ll
> llvm/trunk/test/ExecutionEngine/2003-01-04-LoopTest.ll
> llvm/trunk/test/ExecutionEngine/2003-05-06-LivenessClobber.ll
> llvm/trunk/test/ExecutionEngine/2003-05-07-ArgumentTest.ll
> llvm/trunk/test/ExecutionEngine/2003-08-21-EnvironmentTest.ll
> llvm/trunk/test/ExecutionEngine/2005-12-02-TailCallBug.ll
> llvm/trunk/test/ExecutionEngine/hello.ll
> llvm/trunk/test/ExecutionEngine/hello2.ll
> llvm/trunk/test/ExecutionEngine/stubs.ll
> llvm/trunk/test/ExecutionEngine/test-call-no-external-funcs.ll
> llvm/trunk/test/ExecutionEngine/test-call.ll
> llvm/trunk/test/ExecutionEngine/test-common-symbols.ll
> llvm/trunk/test/ExecutionEngine/test-fp-no-external-funcs.ll
> llvm/trunk/test/ExecutionEngine/test-fp.ll
> llvm/trunk/test/ExecutionEngine/test-global-init-nonzero.ll
> llvm/trunk/test/ExecutionEngine/test-global.ll
> llvm/trunk/test/ExecutionEngine/test-loadstore.ll
>
> Modified: llvm/trunk/include/llvm/Object/COFF.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/COFF.h?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/include/llvm/Object/COFF.h (original)
> +++ llvm/trunk/include/llvm/Object/COFF.h Thu Apr 12 15:13:57 2012
> @@ -126,6 +126,10 @@
> virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
> virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
> virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Res) const;
> virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl
> Symb,
> bool &Result) const;
> virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
>
> Modified: llvm/trunk/include/llvm/Object/ELF.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ELF.h?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/include/llvm/Object/ELF.h (original)
> +++ llvm/trunk/include/llvm/Object/ELF.h Thu Apr 12 15:13:57 2012
> @@ -33,6 +33,15 @@
> namespace llvm {
> namespace object {
>
> +// Subclasses of ELFObjectFile may need this for template instantiation
> +inline std::pair<unsigned char, unsigned char>
> +getElfArchType(MemoryBuffer *Object) {
> + if (Object->getBufferSize() < ELF::EI_NIDENT)
> + return
> std::make_pair((uint8_t)ELF::ELFCLASSNONE,(uint8_t)ELF::ELFDATANONE);
> + return std::make_pair( (uint8_t)Object->getBufferStart()[ELF::EI_CLASS]
> + ,
> (uint8_t)Object->getBufferStart()[ELF::EI_DATA]);
> +}
> +
> // Templates to choose Elf_Addr and Elf_Off depending on is64Bits.
> template<support::endianness target_endianness>
> struct ELFDataTypeTypedefHelperCommon {
> @@ -540,6 +549,10 @@
> virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
> virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
> virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Res) const;
> + virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
> virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl
> Symb,
> bool &Result) const;
> virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
> @@ -1094,6 +1107,43 @@
>
> template<support::endianness target_endianness, bool is64Bits>
> error_code ELFObjectFile<target_endianness, is64Bits>
> + ::isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Result)
> const {
> + const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
> + if (sec->sh_flags & ELF::SHF_ALLOC)
> + Result = true;
> + else
> + Result = false;
> + return object_error::success;
> +}
> +
> +template<support::endianness target_endianness, bool is64Bits>
> +error_code ELFObjectFile<target_endianness, is64Bits>
> + ::isSectionVirtual(DataRefImpl Sec,
> + bool &Result) const {
> + const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
> + if (sec->sh_type == ELF::SHT_NOBITS)
> + Result = true;
> + else
> + Result = false;
> + return object_error::success;
> +}
> +
> +template<support::endianness target_endianness, bool is64Bits>
> +error_code ELFObjectFile<target_endianness,
> is64Bits>::isSectionZeroInit(DataRefImpl Sec,
> + bool &Result) const {
> + const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
> + // For ELF, all zero-init sections are virtual (that is, they occupy no
> space
> + // in the object image) and vice versa.
> + if (sec->sh_flags & ELF::SHT_NOBITS)
> + Result = true;
> + else
> + Result = false;
> + return object_error::success;
> +}
> +
> +template<support::endianness target_endianness, bool is64Bits>
> +error_code ELFObjectFile<target_endianness, is64Bits>
> ::sectionContainsSymbol(DataRefImpl Sec,
> DataRefImpl Symb,
> bool &Result) const {
>
> Modified: llvm/trunk/include/llvm/Object/MachO.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/MachO.h?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/include/llvm/Object/MachO.h (original)
> +++ llvm/trunk/include/llvm/Object/MachO.h Thu Apr 12 15:13:57 2012
> @@ -72,6 +72,10 @@
> virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const;
> virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const;
> virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Res) const;
> + virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const;
> + virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const;
> virtual error_code sectionContainsSymbol(DataRefImpl DRI, DataRefImpl S,
> bool &Result) const;
> virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const;
>
> Modified: llvm/trunk/include/llvm/Object/ObjectFile.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ObjectFile.h?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/include/llvm/Object/ObjectFile.h (original)
> +++ llvm/trunk/include/llvm/Object/ObjectFile.h Thu Apr 12 15:13:57 2012
> @@ -158,11 +158,16 @@
> error_code isText(bool &Result) const;
> error_code isData(bool &Result) const;
> error_code isBSS(bool &Result) const;
> + error_code isRequiredForExecution(bool &Result) const;
> + error_code isVirtual(bool &Result) const;
> + error_code isZeroInit(bool &Result) const;
>
> error_code containsSymbol(SymbolRef S, bool &Result) const;
>
> relocation_iterator begin_relocations() const;
> relocation_iterator end_relocations() const;
> +
> + DataRefImpl getRawDataRefImpl() const;
> };
> typedef content_iterator<SectionRef> section_iterator;
>
> @@ -217,6 +222,9 @@
> /// Get symbol flags (bitwise OR of SymbolRef::Flags)
> error_code getFlags(uint32_t &Result) const;
>
> + /// @brief Return true for common symbols such as uninitialized globals
> + error_code isCommon(bool &Result) const;
> +
> /// @brief Get section this symbol is defined in reference to. Result is
> /// end_sections() if it is undefined or is an absolute symbol.
> error_code getSection(section_iterator &Result) const;
> @@ -299,6 +307,11 @@
> virtual error_code isSectionText(DataRefImpl Sec, bool &Res) const = 0;
> virtual error_code isSectionData(DataRefImpl Sec, bool &Res) const = 0;
> virtual error_code isSectionBSS(DataRefImpl Sec, bool &Res) const = 0;
> + virtual error_code isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Res) const = 0;
> + // A section is 'virtual' if its contents aren't present in the object
> image.
> + virtual error_code isSectionVirtual(DataRefImpl Sec, bool &Res) const =
> 0;
> + virtual error_code isSectionZeroInit(DataRefImpl Sec, bool &Res) const
> = 0;
> virtual error_code sectionContainsSymbol(DataRefImpl Sec, DataRefImpl
> Symb,
> bool &Result) const = 0;
> virtual relocation_iterator getSectionRelBegin(DataRefImpl Sec) const =
> 0;
> @@ -481,6 +494,18 @@
> return OwningObject->isSectionBSS(SectionPimpl, Result);
> }
>
> +inline error_code SectionRef::isRequiredForExecution(bool &Result) const {
> + return OwningObject->isSectionRequiredForExecution(SectionPimpl,
> Result);
> +}
> +
> +inline error_code SectionRef::isVirtual(bool &Result) const {
> + return OwningObject->isSectionVirtual(SectionPimpl, Result);
> +}
> +
> +inline error_code SectionRef::isZeroInit(bool &Result) const {
> + return OwningObject->isSectionZeroInit(SectionPimpl, Result);
> +}
> +
> inline error_code SectionRef::containsSymbol(SymbolRef S, bool &Result)
> const {
> return OwningObject->sectionContainsSymbol(SectionPimpl, S.SymbolPimpl,
> Result);
> @@ -494,6 +519,9 @@
> return OwningObject->getSectionRelEnd(SectionPimpl);
> }
>
> +inline DataRefImpl SectionRef::getRawDataRefImpl() const {
> + return SectionPimpl;
> +}
>
> /// RelocationRef
> inline RelocationRef::RelocationRef(DataRefImpl RelocationP,
>
> Modified: llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp (original)
> +++ llvm/trunk/lib/ExecutionEngine/MCJIT/MCJIT.cpp Thu Apr 12 15:13:57 2012
> @@ -74,9 +74,9 @@
> OS.flush();
>
> // Load the object into the dynamic linker.
> - // FIXME: It would be nice to avoid making yet another copy.
> - MemoryBuffer *MB =
> MemoryBuffer::getMemBufferCopy(StringRef(Buffer.data(),
> -
> Buffer.size()));
> + MemoryBuffer *MB = MemoryBuffer::getMemBuffer(StringRef(Buffer.data(),
> + Buffer.size()),
> + "", false);
> if (Dyld.loadObject(MB))
> report_fatal_error(Dyld.getErrorString());
> // Resolve any relocations.
>
> Modified: llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp (original)
> +++ llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp Thu Apr 12
> 15:13:57 2012
> @@ -36,10 +36,9 @@
> }
> } // end anonymous namespace
>
> -
> // Resolve the relocations for all symbols we currently know about.
> void RuntimeDyldImpl::resolveRelocations() {
> - // First, resolve relocations assotiated with external symbols.
> + // First, resolve relocations associated with external symbols.
> resolveSymbols();
>
> // Just iterate over the sections we have and resolve all the relocations
> @@ -63,14 +62,18 @@
> bool RuntimeDyldImpl::loadObject(const MemoryBuffer *InputBuffer) {
> // FIXME: ObjectFile don't modify MemoryBuffer.
> // It should use const MemoryBuffer as parameter.
> - ObjectFile *obj
> - =
> ObjectFile::createObjectFile(const_cast<MemoryBuffer*>(InputBuffer));
> + OwningPtr<ObjectFile> obj(ObjectFile::createObjectFile(
> +
> const_cast<MemoryBuffer*>(InputBuffer)));
> + if (!obj)
> + report_fatal_error("Unable to create object image from memory
> buffer!");
>
> Arch = (Triple::ArchType)obj->getArch();
>
> LocalSymbolMap LocalSymbols; // Functions and data symbols from the
> // object file.
> ObjSectionToIDMap LocalSections; // Used sections from the object file
> + CommonSymbolMap CommonSymbols; // Common symbols requiring allocation
> + uint64_t CommonSize = 0;
>
> error_code err;
> // Parse symbols
> @@ -83,36 +86,50 @@
> Check(i->getType(SymType));
> Check(i->getName(Name));
>
> - if (SymType == object::SymbolRef::ST_Function ||
> - SymType == object::SymbolRef::ST_Data) {
> - uint64_t FileOffset;
> - uint32_t flags;
> - StringRef sData;
> - section_iterator si = obj->end_sections();
> - Check(i->getFileOffset(FileOffset));
> - Check(i->getFlags(flags));
> - Check(i->getSection(si));
> - if (si == obj->end_sections()) continue;
> - Check(si->getContents(sData));
> - const uint8_t* SymPtr = (const
> uint8_t*)InputBuffer->getBufferStart() +
> - (uintptr_t)FileOffset;
> - uintptr_t SectOffset = (uintptr_t)(SymPtr - (const
> uint8_t*)sData.begin());
> - unsigned SectionID
> - = findOrEmitSection(*si,
> - SymType == object::SymbolRef::ST_Function,
> - LocalSections);
> - bool isGlobal = flags & SymbolRef::SF_Global;
> - LocalSymbols[Name.data()] = SymbolLoc(SectionID, SectOffset);
> - DEBUG(dbgs() << "\tFileOffset: " << format("%p",
> (uintptr_t)FileOffset)
> - << " flags: " << flags
> - << " SID: " << SectionID
> - << " Offset: " << format("%p", SectOffset));
> - if (isGlobal)
> - SymbolTable[Name] = SymbolLoc(SectionID, SectOffset);
> + uint32_t flags;
> + Check(i->getFlags(flags));
> +
> + bool isCommon = flags & SymbolRef::SF_Common;
> + if (isCommon) {
> + // Add the common symbols to a list. We'll allocate them all below.
> + uint64_t Size = 0;
> + Check(i->getSize(Size));
> + CommonSize += Size;
> + CommonSymbols[*i] = Size;
> + } else {
> + if (SymType == object::SymbolRef::ST_Function ||
> + SymType == object::SymbolRef::ST_Data) {
> + uint64_t FileOffset;
> + StringRef sData;
> + section_iterator si = obj->end_sections();
> + Check(i->getFileOffset(FileOffset));
> + Check(i->getSection(si));
> + if (si == obj->end_sections()) continue;
> + Check(si->getContents(sData));
> + const uint8_t* SymPtr = (const
> uint8_t*)InputBuffer->getBufferStart() +
> + (uintptr_t)FileOffset;
> + uintptr_t SectOffset = (uintptr_t)(SymPtr - (const
> uint8_t*)sData.begin());
> + unsigned SectionID =
> + findOrEmitSection(*si,
> + SymType == object::SymbolRef::ST_Function,
> + LocalSections);
> + bool isGlobal = flags & SymbolRef::SF_Global;
> + LocalSymbols[Name.data()] = SymbolLoc(SectionID, SectOffset);
> + DEBUG(dbgs() << "\tFileOffset: " << format("%p",
> (uintptr_t)FileOffset)
> + << " flags: " << flags
> + << " SID: " << SectionID
> + << " Offset: " << format("%p", SectOffset));
> + if (isGlobal)
> + SymbolTable[Name] = SymbolLoc(SectionID, SectOffset);
> + }
> }
> DEBUG(dbgs() << "\tType: " << SymType << " Name: " << Name << "\n");
> }
>
> + // Allocate common symbols
> + if (CommonSize != 0)
> + emitCommonSymbols(CommonSymbols, CommonSize, LocalSymbols);
> +
> // Parse and proccess relocations
> DEBUG(dbgs() << "Parse relocations:\n");
> for (section_iterator si = obj->begin_sections(),
> @@ -150,6 +167,38 @@
> return false;
> }
>
> +unsigned RuntimeDyldImpl::emitCommonSymbols(const CommonSymbolMap &Map,
> + uint64_t TotalSize,
> + LocalSymbolMap &LocalSymbols)
> {
> + // Allocate memory for the section
> + unsigned SectionID = Sections.size();
> + uint8_t *Addr = MemMgr->allocateDataSection(TotalSize, sizeof(void*),
> + SectionID);
> + if (!Addr)
> + report_fatal_error("Unable to allocate memory for common symbols!");
> + uint64_t Offset = 0;
> + Sections.push_back(SectionEntry(Addr, TotalSize, TotalSize, 0));
> + memset(Addr, 0, TotalSize);
> +
> + DEBUG(dbgs() << "emitCommonSection SectionID: " << SectionID
> + << " new addr: " << format("%p", Addr)
> + << " DataSize: " << TotalSize
> + << "\n");
> +
> + // Assign the address of each symbol
> + for (CommonSymbolMap::const_iterator it = Map.begin(), itEnd =
> Map.end();
> + it != itEnd; it++) {
> + uint64_t Size = it->second;
> + StringRef Name;
> + it->first.getName(Name);
> + LocalSymbols[Name.data()] = SymbolLoc(SectionID, Offset);
> + Offset += Size;
> + Addr += Size;
> + }
> +
> + return SectionID;
> +}
> +
> unsigned RuntimeDyldImpl::emitSection(const SectionRef &Section,
> bool IsCode) {
>
> @@ -158,7 +207,7 @@
> error_code err;
> if (StubSize > 0) {
> for (relocation_iterator i = Section.begin_relocations(),
> - e = Section.end_relocations(); i != e; i.increment(err))
> + e = Section.end_relocations(); i != e; i.increment(err),
> Check(err))
> StubBufSize += StubSize;
> }
> StringRef data;
> @@ -167,22 +216,63 @@
> Check(Section.getAlignment(Alignment64));
>
> unsigned Alignment = (unsigned)Alignment64 & 0xffffffffL;
> - unsigned DataSize = data.size();
> - unsigned Allocate = DataSize + StubBufSize;
> + bool IsRequired;
> + bool IsVirtual;
> + bool IsZeroInit;
> + uint64_t DataSize;
> + Check(Section.isRequiredForExecution(IsRequired));
> + Check(Section.isVirtual(IsVirtual));
> + Check(Section.isZeroInit(IsZeroInit));
> + Check(Section.getSize(DataSize));
> +
> + unsigned Allocate;
> unsigned SectionID = Sections.size();
> - const char *pData = data.data();
> - uint8_t *Addr = IsCode
> - ? MemMgr->allocateCodeSection(Allocate, Alignment, SectionID)
> - : MemMgr->allocateDataSection(Allocate, Alignment, SectionID);
> -
> - memcpy(Addr, pData, DataSize);
> - DEBUG(dbgs() << "emitSection SectionID: " << SectionID
> - << " obj addr: " << format("%p", pData)
> - << " new addr: " << format("%p", Addr)
> - << " DataSize: " << DataSize
> - << " StubBufSize: " << StubBufSize
> - << " Allocate: " << Allocate
> - << "\n");
> + uint8_t *Addr;
> + const char *pData = 0;
> +
> + // Some sections, such as debug info, don't need to be loaded for
> execution.
> + // Leave those where they are.
> + if (IsRequired) {
> + Allocate = DataSize + StubBufSize;
> + Addr = IsCode
> + ? MemMgr->allocateCodeSection(Allocate, Alignment, SectionID)
> + : MemMgr->allocateDataSection(Allocate, Alignment, SectionID);
> + if (!Addr)
> + report_fatal_error("Unable to allocate section memory!");
> +
> + // Virtual sections have no data in the object image, so leave pData
> = 0
> + if (!IsVirtual)
> + pData = data.data();
> +
> + // Zero-initialize or copy the data from the image
> + if (IsZeroInit || IsVirtual)
> + memset(Addr, 0, DataSize);
> + else
> + memcpy(Addr, pData, DataSize);
> +
> + DEBUG(dbgs() << "emitSection SectionID: " << SectionID
> + << " obj addr: " << format("%p", pData)
> + << " new addr: " << format("%p", Addr)
> + << " DataSize: " << DataSize
> + << " StubBufSize: " << StubBufSize
> + << " Allocate: " << Allocate
> + << "\n");
> + }
> + else {
> + // Even if we didn't load the section, we need to record an entry for
> it
> + // to handle later processing (and by 'handle' I mean don't do
> anything
> + // with these sections).
> + Allocate = 0;
> + Addr = 0;
> + DEBUG(dbgs() << "emitSection SectionID: " << SectionID
> + << " obj addr: " << format("%p", data.data())
> + << " new addr: 0"
> + << " DataSize: " << DataSize
> + << " StubBufSize: " << StubBufSize
> + << " Allocate: " << Allocate
> + << "\n");
> + }
> +
> Sections.push_back(SectionEntry(Addr, Allocate,
> DataSize,(uintptr_t)pData));
> return SectionID;
> }
> @@ -259,15 +349,18 @@
>
> void RuntimeDyldImpl::resolveRelocationEntry(const RelocationEntry &RE,
> uint64_t Value) {
> - uint8_t *Target = Sections[RE.SectionID].Address + RE.Offset;
> - DEBUG(dbgs() << "\tSectionID: " << RE.SectionID
> - << " + " << RE.Offset << " (" << format("%p", Target) << ")"
> - << " Data: " << RE.Data
> - << " Addend: " << RE.Addend
> - << "\n");
> + // Ignore relocations for sections that were not loaded
> + if (Sections[RE.SectionID].Address != 0) {
> + uint8_t *Target = Sections[RE.SectionID].Address + RE.Offset;
> + DEBUG(dbgs() << "\tSectionID: " << RE.SectionID
> + << " + " << RE.Offset << " (" << format("%p", Target) << ")"
> + << " Data: " << RE.Data
> + << " Addend: " << RE.Addend
> + << "\n");
>
> - resolveRelocation(Target, Sections[RE.SectionID].LoadAddress +
> RE.Offset,
> - Value, RE.Data, RE.Addend);
> + resolveRelocation(Target, Sections[RE.SectionID].LoadAddress +
> RE.Offset,
> + Value, RE.Data, RE.Addend);
> + }
> }
>
> void RuntimeDyldImpl::resolveRelocationList(const RelocationList &Relocs,
>
> Modified: llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
> (original)
> +++ llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp Thu Apr
> 12 15:13:57 2012
> @@ -71,7 +71,8 @@
> switch (Type) {
> case ELF::R_386_32: {
> uint32_t *Target = (uint32_t*)(LocalAddress);
> - *Target = Value + Addend;
> + uint32_t Placeholder = *Target;
> + *Target = Placeholder + Value + Addend;
> break;
> }
> case ELF::R_386_PC32: {
>
> Modified: llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h (original)
> +++ llvm/trunk/lib/ExecutionEngine/RuntimeDyld/RuntimeDyldImpl.h Thu Apr
> 12 15:13:57 2012
> @@ -110,6 +110,9 @@
> StringMap<SymbolLoc> SymbolTable;
> typedef DenseMap<const char*, SymbolLoc> LocalSymbolMap;
>
> + // Keep a map of common symbols to their sizes
> + typedef std::map<SymbolRef, unsigned> CommonSymbolMap;
> +
> // For each symbol, keep a list of relocations based on it. Anytime
> // its address is reassigned (the JIT re-compiled the function, e.g.),
> // the relocations get re-resolved.
> @@ -149,6 +152,12 @@
> return (uint8_t*)Sections[SectionID].Address;
> }
>
> + /// \brief Emits a section containing common symbols.
> + /// \return SectionID.
> + unsigned emitCommonSymbols(const CommonSymbolMap &Map,
> + uint64_t TotalSize,
> + LocalSymbolMap &Symbols);
> +
> /// \brief Emits section data from the object file to the MemoryManager.
> /// \param IsCode if it's true then allocateCodeSection() will be
> /// used for emmits, else allocateDataSection() will be used.
>
> Modified: llvm/trunk/lib/Object/COFFObjectFile.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/COFFObjectFile.cpp?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/Object/COFFObjectFile.cpp (original)
> +++ llvm/trunk/lib/Object/COFFObjectFile.cpp Thu Apr 12 15:13:57 2012
> @@ -356,6 +356,27 @@
> return object_error::success;
> }
>
> +error_code COFFObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Result)
> const {
> + // FIXME: Unimplemented
> + Result = true;
> + return object_error::success;
> +}
> +
> +error_code COFFObjectFile::isSectionVirtual(DataRefImpl Sec,
> + bool &Result) const {
> + const coff_section *sec = toSec(Sec);
> + Result = sec->Characteristics & COFF::IMAGE_SCN_CNT_UNINITIALIZED_DATA;
> + return object_error::success;
> +}
> +
> +error_code COFFObjectFile::isSectionZeroInit(DataRefImpl Sec,
> + bool &Result) const {
> + // FIXME: Unimplemented
> + Result = false;
> + return object_error::success;
> +}
> +
> error_code COFFObjectFile::sectionContainsSymbol(DataRefImpl Sec,
> DataRefImpl Symb,
> bool &Result) const {
>
> Modified: llvm/trunk/lib/Object/MachOObjectFile.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Object/MachOObjectFile.cpp?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/Object/MachOObjectFile.cpp (original)
> +++ llvm/trunk/lib/Object/MachOObjectFile.cpp Thu Apr 12 15:13:57 2012
> @@ -175,7 +175,12 @@
> BeginOffset = Entry->Value;
> SectionIndex = Entry->SectionIndex;
> if (!SectionIndex) {
> - Result = UnknownAddressOrSize;
> + uint32_t flags = SymbolRef::SF_None;
> + getSymbolFlags(DRI, flags);
> + if (flags & SymbolRef::SF_Common)
> + Result = Entry->Value;
> + else
> + Result = UnknownAddressOrSize;
> return object_error::success;
> }
> // Unfortunately symbols are unsorted so we need to touch all
> @@ -198,7 +203,12 @@
> BeginOffset = Entry->Value;
> SectionIndex = Entry->SectionIndex;
> if (!SectionIndex) {
> - Result = UnknownAddressOrSize;
> + uint32_t flags = SymbolRef::SF_None;
> + getSymbolFlags(DRI, flags);
> + if (flags & SymbolRef::SF_Common)
> + Result = Entry->Value;
> + else
> + Result = UnknownAddressOrSize;
> return object_error::success;
> }
> // Unfortunately symbols are unsorted so we need to touch all
> @@ -265,19 +275,22 @@
> uint32_t &Result) const {
> uint16_t MachOFlags;
> uint8_t MachOType;
> + uint8_t MachOSectionIndex;
> if (MachOObj->is64Bit()) {
> InMemoryStruct<macho::Symbol64TableEntry> Entry;
> getSymbol64TableEntry(DRI, Entry);
> MachOFlags = Entry->Flags;
> MachOType = Entry->Type;
> + MachOSectionIndex = Entry->SectionIndex;
> } else {
> InMemoryStruct<macho::SymbolTableEntry> Entry;
> getSymbolTableEntry(DRI, Entry);
> MachOFlags = Entry->Flags;
> MachOType = Entry->Type;
> + MachOSectionIndex = Entry->SectionIndex;
> }
>
> - // TODO: Correctly set SF_ThreadLocal and SF_Common.
> + // TODO: Correctly set SF_ThreadLocal
> Result = SymbolRef::SF_None;
>
> if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeUndefined)
> @@ -286,8 +299,11 @@
> if (MachOFlags & macho::STF_StabsEntryMask)
> Result |= SymbolRef::SF_FormatSpecific;
>
> - if (MachOType & MachO::NlistMaskExternal)
> + if (MachOType & MachO::NlistMaskExternal) {
> Result |= SymbolRef::SF_Global;
> + if ((MachOType & MachO::NlistMaskType) == MachO::NListTypeUndefined)
> + Result |= SymbolRef::SF_Common;
> + }
>
> if (MachOFlags & (MachO::NListDescWeakRef | MachO::NListDescWeakDef))
> Result |= SymbolRef::SF_Weak;
> @@ -566,6 +582,37 @@
> return object_error::success;
> }
>
> +error_code MachOObjectFile::isSectionRequiredForExecution(DataRefImpl Sec,
> + bool &Result)
> const {
> + // FIXME: Unimplemented
> + Result = true;
> + return object_error::success;
> +}
> +
> +error_code MachOObjectFile::isSectionVirtual(DataRefImpl Sec,
> + bool &Result) const {
> + // FIXME: Unimplemented
> + Result = false;
> + return object_error::success;
> +}
> +
> +error_code MachOObjectFile::isSectionZeroInit(DataRefImpl DRI,
> + bool &Result) const {
> + if (MachOObj->is64Bit()) {
> + InMemoryStruct<macho::Section64> Sect;
> + getSection64(DRI, Sect);
> + Result = (Sect->Flags & MachO::SectionTypeZeroFill ||
> + Sect->Flags & MachO::SectionTypeZeroFillLarge);
> + } else {
> + InMemoryStruct<macho::Section> Sect;
> + getSection(DRI, Sect);
> + Result = (Sect->Flags & MachO::SectionTypeZeroFill ||
> + Sect->Flags & MachO::SectionTypeZeroFillLarge);
> + }
> +
> + return object_error::success;
> +}
> +
> error_code MachOObjectFile::sectionContainsSymbol(DataRefImpl Sec,
> DataRefImpl Symb,
> bool &Result) const {
>
> Modified: llvm/trunk/test/ExecutionEngine/2002-12-16-ArgTest.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2002-12-16-ArgTest.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2002-12-16-ArgTest.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/2002-12-16-ArgTest.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,5 +1,4 @@
> ; RUN: %lli %s > /dev/null
> -; XFAIL: mcjit
>
> @.LC0 = internal global [10 x i8] c"argc: %d\0A\00" ; <[10 x
> i8]*> [#uses=1]
>
>
> Modified: llvm/trunk/test/ExecutionEngine/2003-01-04-ArgumentBug.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2003-01-04-ArgumentBug.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2003-01-04-ArgumentBug.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/2003-01-04-ArgumentBug.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> define i32 @foo(i32 %X, i32 %Y, double %A) {
> %cond212 = fcmp une double %A, 1.000000e+00 ; <i1>
> [#uses=1]
>
> Modified: llvm/trunk/test/ExecutionEngine/2003-01-04-LoopTest.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2003-01-04-LoopTest.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2003-01-04-LoopTest.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/2003-01-04-LoopTest.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> define i32 @main() {
> call i32 @mylog( i32 4 ) ; <i32>:1 [#uses=0]
>
> Modified: llvm/trunk/test/ExecutionEngine/2003-05-06-LivenessClobber.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2003-05-06-LivenessClobber.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2003-05-06-LivenessClobber.ll
> (original)
> +++ llvm/trunk/test/ExecutionEngine/2003-05-06-LivenessClobber.ll Thu Apr
> 12 15:13:57 2012
> @@ -2,7 +2,6 @@
> ;
> ; RUN: not %lli %s
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> @test = global i64 0 ; <i64*> [#uses=1]
>
>
> Modified: llvm/trunk/test/ExecutionEngine/2003-05-07-ArgumentTest.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2003-05-07-ArgumentTest.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2003-05-07-ArgumentTest.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/2003-05-07-ArgumentTest.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s test
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> declare i32 @puts(i8*)
>
>
> Modified: llvm/trunk/test/ExecutionEngine/2003-08-21-EnvironmentTest.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2003-08-21-EnvironmentTest.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2003-08-21-EnvironmentTest.ll
> (original)
> +++ llvm/trunk/test/ExecutionEngine/2003-08-21-EnvironmentTest.ll Thu Apr
> 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> ;
> ; Regression Test: EnvironmentTest.ll
>
> Modified: llvm/trunk/test/ExecutionEngine/2005-12-02-TailCallBug.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/2005-12-02-TailCallBug.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/2005-12-02-TailCallBug.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/2005-12-02-TailCallBug.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,7 +1,6 @@
> ; PR672
> ; RUN: %lli %s
> ; XFAIL: arm
> -; XFAIL: mcjit-ia32
>
> define i32 @main() {
> %f = bitcast i32 (i32, i32*, i32)* @check_tail to i32* ;
> <i32*> [#uses=1]
>
> Modified: llvm/trunk/test/ExecutionEngine/hello.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/hello.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/hello.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/hello.ll Thu Apr 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> @.LC0 = internal global [12 x i8] c"Hello World\00" ; <[12 x
> i8]*> [#uses=1]
>
>
> Modified: llvm/trunk/test/ExecutionEngine/hello2.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/hello2.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/hello2.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/hello2.ll Thu Apr 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> @X = global i32 7 ; <i32*> [#uses=0]
> @msg = internal global [13 x i8] c"Hello World\0A\00" ; <[13 x
> i8]*> [#uses=1]
>
> Modified: llvm/trunk/test/ExecutionEngine/stubs.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/stubs.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/stubs.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/stubs.ll Thu Apr 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli -disable-lazy-compilation=false %s
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> define i32 @main() nounwind {
> entry:
>
> Modified: llvm/trunk/test/ExecutionEngine/test-call-no-external-funcs.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-call-no-external-funcs.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-call-no-external-funcs.ll
> (original)
> +++ llvm/trunk/test/ExecutionEngine/test-call-no-external-funcs.ll Thu Apr
> 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> define i32 @_Z14func_exit_codev() nounwind uwtable {
> entry:
>
> Modified: llvm/trunk/test/ExecutionEngine/test-call.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-call.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-call.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-call.ll Thu Apr 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> declare void @exit(i32)
>
>
> Modified: llvm/trunk/test/ExecutionEngine/test-common-symbols.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-common-symbols.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-common-symbols.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-common-symbols.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli -O0 -disable-lazy-compilation=false %s
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> ; The intention of this test is to verify that symbols mapped to COMMON
> in ELF
> ; work as expected.
>
> Modified: llvm/trunk/test/ExecutionEngine/test-fp-no-external-funcs.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-fp-no-external-funcs.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-fp-no-external-funcs.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-fp-no-external-funcs.ll Thu Apr
> 12 15:13:57 2012
> @@ -1,5 +1,4 @@
> ; RUN: %lli %s > /dev/null
> -; XFAIL: mcjit
>
> define double @test(double* %DP, double %Arg) {
> %D = load double* %DP ; <double> [#uses=1]
>
> Modified: llvm/trunk/test/ExecutionEngine/test-fp.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-fp.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-fp.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-fp.ll Thu Apr 12 15:13:57 2012
> @@ -1,5 +1,4 @@
> ; RUN: %lli %s > /dev/null
> -; XFAIL: mcjit
>
> define double @test(double* %DP, double %Arg) {
> %D = load double* %DP ; <double> [#uses=1]
>
> Modified: llvm/trunk/test/ExecutionEngine/test-global-init-nonzero.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-global-init-nonzero.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-global-init-nonzero.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-global-init-nonzero.ll Thu Apr 12
> 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> @count = global i32 1, align 4
>
>
> Modified: llvm/trunk/test/ExecutionEngine/test-global.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-global.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-global.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-global.ll Thu Apr 12 15:13:57 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit
>
> @count = global i32 0, align 4
>
>
> Modified: llvm/trunk/test/ExecutionEngine/test-loadstore.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/ExecutionEngine/test-loadstore.ll?rev=154610&r1=154609&r2=154610&view=diff
>
> ==============================================================================
> --- llvm/trunk/test/ExecutionEngine/test-loadstore.ll (original)
> +++ llvm/trunk/test/ExecutionEngine/test-loadstore.ll Thu Apr 12 15:13:57
> 2012
> @@ -1,6 +1,5 @@
> ; RUN: %lli %s > /dev/null
> ; XFAIL: arm
> -; XFAIL: mcjit-ia32
>
> define void @test(i8* %P, i16* %P.upgrd.1, i32* %P.upgrd.2, i64*
> %P.upgrd.3) {
> %V = load i8* %P ; <i8> [#uses=1]
>
>
> _______________________________________________
> llvm-commits mailing list
> llvm-commits at cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
--
~Craig
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