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authorvitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
committervitalyisaev <vitalyisaev@yandex-team.com>2023-06-29 10:00:50 +0300
commit6ffe9e53658409f212834330e13564e4952558f6 (patch)
tree85b1e00183517648b228aafa7c8fb07f5276f419 /contrib/libs/llvm14/lib/Object/MachOUniversal.cpp
parent726057070f9c5a91fc10fde0d5024913d10f1ab9 (diff)
downloadydb-6ffe9e53658409f212834330e13564e4952558f6.tar.gz
YQ Connector: support managed ClickHouse
Со стороны dqrun можно обратиться к инстансу коннектора, который работает на streaming стенде, и извлечь данные из облачного CH.
Diffstat (limited to 'contrib/libs/llvm14/lib/Object/MachOUniversal.cpp')
-rw-r--r--contrib/libs/llvm14/lib/Object/MachOUniversal.cpp272
1 files changed, 272 insertions, 0 deletions
diff --git a/contrib/libs/llvm14/lib/Object/MachOUniversal.cpp b/contrib/libs/llvm14/lib/Object/MachOUniversal.cpp
new file mode 100644
index 0000000000..f3ce005e6e
--- /dev/null
+++ b/contrib/libs/llvm14/lib/Object/MachOUniversal.cpp
@@ -0,0 +1,272 @@
+//===- MachOUniversal.cpp - Mach-O universal binary -------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the MachOUniversalBinary class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/MachOUniversal.h"
+#include "llvm/Object/Archive.h"
+#include "llvm/Object/IRObjectFile.h"
+#include "llvm/Object/MachO.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/Host.h"
+#include "llvm/Support/MemoryBuffer.h"
+
+using namespace llvm;
+using namespace object;
+
+static Error
+malformedError(Twine Msg) {
+ std::string StringMsg = "truncated or malformed fat file (" + Msg.str() + ")";
+ return make_error<GenericBinaryError>(std::move(StringMsg),
+ object_error::parse_failed);
+}
+
+template<typename T>
+static T getUniversalBinaryStruct(const char *Ptr) {
+ T Res;
+ memcpy(&Res, Ptr, sizeof(T));
+ // Universal binary headers have big-endian byte order.
+ if (sys::IsLittleEndianHost)
+ swapStruct(Res);
+ return Res;
+}
+
+MachOUniversalBinary::ObjectForArch::ObjectForArch(
+ const MachOUniversalBinary *Parent, uint32_t Index)
+ : Parent(Parent), Index(Index) {
+ // The iterators use Parent as a nullptr and an Index+1 == NumberOfObjects.
+ if (!Parent || Index >= Parent->getNumberOfObjects()) {
+ clear();
+ } else {
+ // Parse object header.
+ StringRef ParentData = Parent->getData();
+ if (Parent->getMagic() == MachO::FAT_MAGIC) {
+ const char *HeaderPos = ParentData.begin() + sizeof(MachO::fat_header) +
+ Index * sizeof(MachO::fat_arch);
+ Header = getUniversalBinaryStruct<MachO::fat_arch>(HeaderPos);
+ } else { // Parent->getMagic() == MachO::FAT_MAGIC_64
+ const char *HeaderPos = ParentData.begin() + sizeof(MachO::fat_header) +
+ Index * sizeof(MachO::fat_arch_64);
+ Header64 = getUniversalBinaryStruct<MachO::fat_arch_64>(HeaderPos);
+ }
+ }
+}
+
+Expected<std::unique_ptr<MachOObjectFile>>
+MachOUniversalBinary::ObjectForArch::getAsObjectFile() const {
+ if (!Parent)
+ report_fatal_error("MachOUniversalBinary::ObjectForArch::getAsObjectFile() "
+ "called when Parent is a nullptr");
+
+ StringRef ParentData = Parent->getData();
+ StringRef ObjectData;
+ uint32_t cputype;
+ if (Parent->getMagic() == MachO::FAT_MAGIC) {
+ ObjectData = ParentData.substr(Header.offset, Header.size);
+ cputype = Header.cputype;
+ } else { // Parent->getMagic() == MachO::FAT_MAGIC_64
+ ObjectData = ParentData.substr(Header64.offset, Header64.size);
+ cputype = Header64.cputype;
+ }
+ StringRef ObjectName = Parent->getFileName();
+ MemoryBufferRef ObjBuffer(ObjectData, ObjectName);
+ return ObjectFile::createMachOObjectFile(ObjBuffer, cputype, Index);
+}
+
+Expected<std::unique_ptr<IRObjectFile>>
+MachOUniversalBinary::ObjectForArch::getAsIRObject(LLVMContext &Ctx) const {
+ if (!Parent)
+ report_fatal_error("MachOUniversalBinary::ObjectForArch::getAsIRObject() "
+ "called when Parent is a nullptr");
+
+ StringRef ParentData = Parent->getData();
+ StringRef ObjectData;
+ if (Parent->getMagic() == MachO::FAT_MAGIC) {
+ ObjectData = ParentData.substr(Header.offset, Header.size);
+ } else { // Parent->getMagic() == MachO::FAT_MAGIC_64
+ ObjectData = ParentData.substr(Header64.offset, Header64.size);
+ }
+ StringRef ObjectName = Parent->getFileName();
+ MemoryBufferRef ObjBuffer(ObjectData, ObjectName);
+
+ return IRObjectFile::create(ObjBuffer, Ctx);
+}
+
+Expected<std::unique_ptr<Archive>>
+MachOUniversalBinary::ObjectForArch::getAsArchive() const {
+ if (!Parent)
+ report_fatal_error("MachOUniversalBinary::ObjectForArch::getAsArchive() "
+ "called when Parent is a nullptr");
+
+ StringRef ParentData = Parent->getData();
+ StringRef ObjectData;
+ if (Parent->getMagic() == MachO::FAT_MAGIC)
+ ObjectData = ParentData.substr(Header.offset, Header.size);
+ else // Parent->getMagic() == MachO::FAT_MAGIC_64
+ ObjectData = ParentData.substr(Header64.offset, Header64.size);
+ StringRef ObjectName = Parent->getFileName();
+ MemoryBufferRef ObjBuffer(ObjectData, ObjectName);
+ return Archive::create(ObjBuffer);
+}
+
+void MachOUniversalBinary::anchor() { }
+
+Expected<std::unique_ptr<MachOUniversalBinary>>
+MachOUniversalBinary::create(MemoryBufferRef Source) {
+ Error Err = Error::success();
+ std::unique_ptr<MachOUniversalBinary> Ret(
+ new MachOUniversalBinary(Source, Err));
+ if (Err)
+ return std::move(Err);
+ return std::move(Ret);
+}
+
+MachOUniversalBinary::MachOUniversalBinary(MemoryBufferRef Source, Error &Err)
+ : Binary(Binary::ID_MachOUniversalBinary, Source), Magic(0),
+ NumberOfObjects(0) {
+ ErrorAsOutParameter ErrAsOutParam(&Err);
+ if (Data.getBufferSize() < sizeof(MachO::fat_header)) {
+ Err = make_error<GenericBinaryError>("File too small to be a Mach-O "
+ "universal file",
+ object_error::invalid_file_type);
+ return;
+ }
+ // Check for magic value and sufficient header size.
+ StringRef Buf = getData();
+ MachO::fat_header H =
+ getUniversalBinaryStruct<MachO::fat_header>(Buf.begin());
+ Magic = H.magic;
+ NumberOfObjects = H.nfat_arch;
+ if (NumberOfObjects == 0) {
+ Err = malformedError("contains zero architecture types");
+ return;
+ }
+ uint32_t MinSize = sizeof(MachO::fat_header);
+ if (Magic == MachO::FAT_MAGIC)
+ MinSize += sizeof(MachO::fat_arch) * NumberOfObjects;
+ else if (Magic == MachO::FAT_MAGIC_64)
+ MinSize += sizeof(MachO::fat_arch_64) * NumberOfObjects;
+ else {
+ Err = malformedError("bad magic number");
+ return;
+ }
+ if (Buf.size() < MinSize) {
+ Err = malformedError("fat_arch" +
+ Twine(Magic == MachO::FAT_MAGIC ? "" : "_64") +
+ " structs would extend past the end of the file");
+ return;
+ }
+ for (uint32_t i = 0; i < NumberOfObjects; i++) {
+ ObjectForArch A(this, i);
+ uint64_t bigSize = A.getOffset();
+ bigSize += A.getSize();
+ if (bigSize > Buf.size()) {
+ Err = malformedError("offset plus size of cputype (" +
+ Twine(A.getCPUType()) + ") cpusubtype (" +
+ Twine(A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) +
+ ") extends past the end of the file");
+ return;
+ }
+
+ if (A.getAlign() > MaxSectionAlignment) {
+ Err = malformedError("align (2^" + Twine(A.getAlign()) +
+ ") too large for cputype (" + Twine(A.getCPUType()) +
+ ") cpusubtype (" +
+ Twine(A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) +
+ ") (maximum 2^" + Twine(MaxSectionAlignment) + ")");
+ return;
+ }
+ if(A.getOffset() % (1ull << A.getAlign()) != 0){
+ Err = malformedError("offset: " + Twine(A.getOffset()) +
+ " for cputype (" + Twine(A.getCPUType()) + ") cpusubtype (" +
+ Twine(A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) +
+ ") not aligned on it's alignment (2^" + Twine(A.getAlign()) + ")");
+ return;
+ }
+ if (A.getOffset() < MinSize) {
+ Err = malformedError("cputype (" + Twine(A.getCPUType()) + ") "
+ "cpusubtype (" + Twine(A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) +
+ ") offset " + Twine(A.getOffset()) + " overlaps universal headers");
+ return;
+ }
+ }
+ for (uint32_t i = 0; i < NumberOfObjects; i++) {
+ ObjectForArch A(this, i);
+ for (uint32_t j = i + 1; j < NumberOfObjects; j++) {
+ ObjectForArch B(this, j);
+ if (A.getCPUType() == B.getCPUType() &&
+ (A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) ==
+ (B.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK)) {
+ Err = malformedError("contains two of the same architecture (cputype "
+ "(" + Twine(A.getCPUType()) + ") cpusubtype (" +
+ Twine(A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) + "))");
+ return;
+ }
+ if ((A.getOffset() >= B.getOffset() &&
+ A.getOffset() < B.getOffset() + B.getSize()) ||
+ (A.getOffset() + A.getSize() > B.getOffset() &&
+ A.getOffset() + A.getSize() < B.getOffset() + B.getSize()) ||
+ (A.getOffset() <= B.getOffset() &&
+ A.getOffset() + A.getSize() >= B.getOffset() + B.getSize())) {
+ Err = malformedError("cputype (" + Twine(A.getCPUType()) + ") "
+ "cpusubtype (" + Twine(A.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK) +
+ ") at offset " + Twine(A.getOffset()) + " with a size of " +
+ Twine(A.getSize()) + ", overlaps cputype (" + Twine(B.getCPUType()) +
+ ") cpusubtype (" + Twine(B.getCPUSubType() & ~MachO::CPU_SUBTYPE_MASK)
+ + ") at offset " + Twine(B.getOffset()) + " with a size of "
+ + Twine(B.getSize()));
+ return;
+ }
+ }
+ }
+ Err = Error::success();
+}
+
+Expected<MachOUniversalBinary::ObjectForArch>
+MachOUniversalBinary::getObjectForArch(StringRef ArchName) const {
+ if (Triple(ArchName).getArch() == Triple::ArchType::UnknownArch)
+ return make_error<GenericBinaryError>("Unknown architecture "
+ "named: " +
+ ArchName,
+ object_error::arch_not_found);
+ for (const auto &Obj : objects())
+ if (Obj.getArchFlagName() == ArchName)
+ return Obj;
+ return make_error<GenericBinaryError>("fat file does not "
+ "contain " +
+ ArchName,
+ object_error::arch_not_found);
+}
+
+Expected<std::unique_ptr<MachOObjectFile>>
+MachOUniversalBinary::getMachOObjectForArch(StringRef ArchName) const {
+ Expected<ObjectForArch> O = getObjectForArch(ArchName);
+ if (!O)
+ return O.takeError();
+ return O->getAsObjectFile();
+}
+
+Expected<std::unique_ptr<IRObjectFile>>
+MachOUniversalBinary::getIRObjectForArch(StringRef ArchName,
+ LLVMContext &Ctx) const {
+ Expected<ObjectForArch> O = getObjectForArch(ArchName);
+ if (!O)
+ return O.takeError();
+ return O->getAsIRObject(Ctx);
+}
+
+Expected<std::unique_ptr<Archive>>
+MachOUniversalBinary::getArchiveForArch(StringRef ArchName) const {
+ Expected<ObjectForArch> O = getObjectForArch(ArchName);
+ if (!O)
+ return O.takeError();
+ return O->getAsArchive();
+}