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-rw-r--r--contrib/llvm/lib/Object/MachOUniversal.cpp227
1 files changed, 0 insertions, 227 deletions
diff --git a/contrib/llvm/lib/Object/MachOUniversal.cpp b/contrib/llvm/lib/Object/MachOUniversal.cpp
deleted file mode 100644
index b3f0993412c6..000000000000
--- a/contrib/llvm/lib/Object/MachOUniversal.cpp
+++ /dev/null
@@ -1,227 +0,0 @@
-//===- 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/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<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;
- }
-#define MAXSECTALIGN 15 /* 2**15 or 0x8000 */
- if (A.getAlign() > MAXSECTALIGN) {
- 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(MAXSECTALIGN) + ")");
- return;
- }
- if(A.getOffset() % (1 << 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<std::unique_ptr<MachOObjectFile>>
-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 (auto &Obj : objects())
- if (Obj.getArchFlagName() == ArchName)
- return Obj.getAsObjectFile();
- return make_error<GenericBinaryError>("fat file does not "
- "contain " +
- ArchName,
- object_error::arch_not_found);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-07 21:47:49 +0000