diff options
Diffstat (limited to 'llvm/lib/Object/MachOObjectFile.cpp')
| -rw-r--r-- | llvm/lib/Object/MachOObjectFile.cpp | 215 |
1 files changed, 112 insertions, 103 deletions
diff --git a/llvm/lib/Object/MachOObjectFile.cpp b/llvm/lib/Object/MachOObjectFile.cpp index 1753d2baaed..3d3fa07db3f 100644 --- a/llvm/lib/Object/MachOObjectFile.cpp +++ b/llvm/lib/Object/MachOObjectFile.cpp @@ -1,4 +1,4 @@ -//===- MachOObjectFile.cpp - Mach-O object file binding ---------*- C++ -*-===// +//===- MachOObjectFile.cpp - Mach-O object file binding -------------------===// // // The LLVM Compiler Infrastructure // @@ -12,32 +12,52 @@ // //===----------------------------------------------------------------------===// -#include "llvm/Object/MachO.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/None.h" +#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringRef.h" #include "llvm/ADT/StringSwitch.h" #include "llvm/ADT/Triple.h" +#include "llvm/ADT/Twine.h" +#include "llvm/Object/Error.h" +#include "llvm/Object/MachO.h" +#include "llvm/Object/ObjectFile.h" +#include "llvm/Object/SymbolicFile.h" #include "llvm/Support/DataExtractor.h" #include "llvm/Support/Debug.h" +#include "llvm/Support/Error.h" +#include "llvm/Support/ErrorHandling.h" #include "llvm/Support/Format.h" #include "llvm/Support/Host.h" #include "llvm/Support/LEB128.h" #include "llvm/Support/MachO.h" #include "llvm/Support/MemoryBuffer.h" #include "llvm/Support/raw_ostream.h" -#include <cctype> +#include "llvm/Support/SwapByteOrder.h" +#include <algorithm> +#include <cassert> +#include <cstddef> +#include <cstdint> #include <cstring> #include <limits> #include <list> +#include <memory> +#include <string> +#include <system_error> using namespace llvm; using namespace object; namespace { + struct section_base { char sectname[16]; char segname[16]; }; -} + +} // end anonymous namespace static Error malformedError(Twine Msg) { @@ -1144,11 +1164,7 @@ MachOObjectFile::MachOObjectFile(MemoryBufferRef Object, bool IsLittleEndian, bool Is64bits, Error &Err, uint32_t UniversalCputype, uint32_t UniversalIndex) - : ObjectFile(getMachOType(IsLittleEndian, Is64bits), Object), - SymtabLoadCmd(nullptr), DysymtabLoadCmd(nullptr), - DataInCodeLoadCmd(nullptr), LinkOptHintsLoadCmd(nullptr), - DyldInfoLoadCmd(nullptr), UuidLoadCmd(nullptr), - HasPageZeroSegment(false) { + : ObjectFile(getMachOType(IsLittleEndian, Is64bits), Object) { ErrorAsOutParameter ErrAsOutParam(&Err); uint64_t SizeOfHeaders; uint32_t cputype; @@ -2343,11 +2359,11 @@ StringRef MachOObjectFile::getFileFormatName() const { unsigned CPUType = getCPUType(*this); if (!is64Bit()) { switch (CPUType) { - case llvm::MachO::CPU_TYPE_I386: + case MachO::CPU_TYPE_I386: return "Mach-O 32-bit i386"; - case llvm::MachO::CPU_TYPE_ARM: + case MachO::CPU_TYPE_ARM: return "Mach-O arm"; - case llvm::MachO::CPU_TYPE_POWERPC: + case MachO::CPU_TYPE_POWERPC: return "Mach-O 32-bit ppc"; default: return "Mach-O 32-bit unknown"; @@ -2355,11 +2371,11 @@ StringRef MachOObjectFile::getFileFormatName() const { } switch (CPUType) { - case llvm::MachO::CPU_TYPE_X86_64: + case MachO::CPU_TYPE_X86_64: return "Mach-O 64-bit x86-64"; - case llvm::MachO::CPU_TYPE_ARM64: + case MachO::CPU_TYPE_ARM64: return "Mach-O arm64"; - case llvm::MachO::CPU_TYPE_POWERPC64: + case MachO::CPU_TYPE_POWERPC64: return "Mach-O 64-bit ppc64"; default: return "Mach-O 64-bit unknown"; @@ -2368,17 +2384,17 @@ StringRef MachOObjectFile::getFileFormatName() const { Triple::ArchType MachOObjectFile::getArch(uint32_t CPUType) { switch (CPUType) { - case llvm::MachO::CPU_TYPE_I386: + case MachO::CPU_TYPE_I386: return Triple::x86; - case llvm::MachO::CPU_TYPE_X86_64: + case MachO::CPU_TYPE_X86_64: return Triple::x86_64; - case llvm::MachO::CPU_TYPE_ARM: + case MachO::CPU_TYPE_ARM: return Triple::arm; - case llvm::MachO::CPU_TYPE_ARM64: + case MachO::CPU_TYPE_ARM64: return Triple::aarch64; - case llvm::MachO::CPU_TYPE_POWERPC: + case MachO::CPU_TYPE_POWERPC: return Triple::ppc; - case llvm::MachO::CPU_TYPE_POWERPC64: + case MachO::CPU_TYPE_POWERPC64: return Triple::ppc64; default: return Triple::UnknownArch; @@ -2571,8 +2587,7 @@ dice_iterator MachOObjectFile::end_dices() const { return dice_iterator(DiceRef(DRI, this)); } -ExportEntry::ExportEntry(ArrayRef<uint8_t> T) - : Trie(T), Malformed(false), Done(false) {} +ExportEntry::ExportEntry(ArrayRef<uint8_t> T) : Trie(T) {} void ExportEntry::moveToFirst() { pushNode(0); @@ -2641,9 +2656,7 @@ uint32_t ExportEntry::nodeOffset() const { } ExportEntry::NodeState::NodeState(const uint8_t *Ptr) - : Start(Ptr), Current(Ptr), Flags(0), Address(0), Other(0), - ImportName(nullptr), ChildCount(0), NextChildIndex(0), - ParentStringLength(0), IsExportNode(false) {} + : Start(Ptr), Current(Ptr) {} void ExportEntry::pushNode(uint64_t offset) { const uint8_t *Ptr = Trie.begin() + offset; @@ -2733,7 +2746,7 @@ void ExportEntry::moveNext() { iterator_range<export_iterator> MachOObjectFile::exports(ArrayRef<uint8_t> Trie) { ExportEntry Start(Trie); - if (Trie.size() == 0) + if (Trie.empty()) Start.moveToEnd(); else Start.moveToFirst(); @@ -2750,9 +2763,8 @@ iterator_range<export_iterator> MachOObjectFile::exports() const { MachORebaseEntry::MachORebaseEntry(Error *E, const MachOObjectFile *O, ArrayRef<uint8_t> Bytes, bool is64Bit) - : E(E), O(O), Opcodes(Bytes), Ptr(Bytes.begin()), SegmentOffset(0), - SegmentIndex(-1), RemainingLoopCount(0), AdvanceAmount(0), RebaseType(0), - PointerSize(is64Bit ? 8 : 4), Done(false) {} + : E(E), O(O), Opcodes(Bytes), Ptr(Bytes.begin()), + PointerSize(is64Bit ? 8 : 4) {} void MachORebaseEntry::moveToFirst() { Ptr = Opcodes.begin(); @@ -2794,7 +2806,7 @@ void MachORebaseEntry::moveNext() { More = false; Done = true; moveToEnd(); - DEBUG_WITH_TYPE("mach-o-rebase", llvm::dbgs() << "REBASE_OPCODE_DONE\n"); + DEBUG_WITH_TYPE("mach-o-rebase", dbgs() << "REBASE_OPCODE_DONE\n"); break; case MachO::REBASE_OPCODE_SET_TYPE_IMM: RebaseType = ImmValue; @@ -2807,8 +2819,8 @@ void MachORebaseEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_SET_TYPE_IMM: " - << "RebaseType=" << (int) RebaseType << "\n"); + dbgs() << "REBASE_OPCODE_SET_TYPE_IMM: " + << "RebaseType=" << (int) RebaseType << "\n"); break; case MachO::REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: SegmentIndex = ImmValue; @@ -2831,10 +2843,10 @@ void MachORebaseEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: " - << "SegmentIndex=" << SegmentIndex << ", " - << format("SegmentOffset=0x%06X", SegmentOffset) - << "\n"); + dbgs() << "REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: " + << "SegmentIndex=" << SegmentIndex << ", " + << format("SegmentOffset=0x%06X", SegmentOffset) + << "\n"); break; case MachO::REBASE_OPCODE_ADD_ADDR_ULEB: SegmentOffset += readULEB128(&error); @@ -2855,9 +2867,9 @@ void MachORebaseEntry::moveNext() { return; } DEBUG_WITH_TYPE("mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_ADD_ADDR_ULEB: " - << format("SegmentOffset=0x%06X", - SegmentOffset) << "\n"); + dbgs() << "REBASE_OPCODE_ADD_ADDR_ULEB: " + << format("SegmentOffset=0x%06X", + SegmentOffset) << "\n"); break; case MachO::REBASE_OPCODE_ADD_ADDR_IMM_SCALED: error = O->RebaseEntryCheckSegAndOffset(SegmentIndex, SegmentOffset, @@ -2881,9 +2893,9 @@ void MachORebaseEntry::moveNext() { return; } DEBUG_WITH_TYPE("mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_ADD_ADDR_IMM_SCALED: " - << format("SegmentOffset=0x%06X", - SegmentOffset) << "\n"); + dbgs() << "REBASE_OPCODE_ADD_ADDR_IMM_SCALED: " + << format("SegmentOffset=0x%06X", + SegmentOffset) << "\n"); break; case MachO::REBASE_OPCODE_DO_REBASE_IMM_TIMES: error = O->RebaseEntryCheckSegAndOffset(SegmentIndex, SegmentOffset, @@ -2913,11 +2925,11 @@ void MachORebaseEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_DO_REBASE_IMM_TIMES: " - << format("SegmentOffset=0x%06X", SegmentOffset) - << ", AdvanceAmount=" << AdvanceAmount - << ", RemainingLoopCount=" << RemainingLoopCount - << "\n"); + dbgs() << "REBASE_OPCODE_DO_REBASE_IMM_TIMES: " + << format("SegmentOffset=0x%06X", SegmentOffset) + << ", AdvanceAmount=" << AdvanceAmount + << ", RemainingLoopCount=" << RemainingLoopCount + << "\n"); return; case MachO::REBASE_OPCODE_DO_REBASE_ULEB_TIMES: error = O->RebaseEntryCheckSegAndOffset(SegmentIndex, SegmentOffset, @@ -2954,11 +2966,11 @@ void MachORebaseEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_DO_REBASE_ULEB_TIMES: " - << format("SegmentOffset=0x%06X", SegmentOffset) - << ", AdvanceAmount=" << AdvanceAmount - << ", RemainingLoopCount=" << RemainingLoopCount - << "\n"); + dbgs() << "REBASE_OPCODE_DO_REBASE_ULEB_TIMES: " + << format("SegmentOffset=0x%06X", SegmentOffset) + << ", AdvanceAmount=" << AdvanceAmount + << ", RemainingLoopCount=" << RemainingLoopCount + << "\n"); return; case MachO::REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB: error = O->RebaseEntryCheckSegAndOffset(SegmentIndex, SegmentOffset, @@ -2992,11 +3004,11 @@ void MachORebaseEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB: " - << format("SegmentOffset=0x%06X", SegmentOffset) - << ", AdvanceAmount=" << AdvanceAmount - << ", RemainingLoopCount=" << RemainingLoopCount - << "\n"); + dbgs() << "REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB: " + << format("SegmentOffset=0x%06X", SegmentOffset) + << ", AdvanceAmount=" << AdvanceAmount + << ", RemainingLoopCount=" << RemainingLoopCount + << "\n"); return; case MachO::REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB: error = O->RebaseEntryCheckSegAndOffset(SegmentIndex, SegmentOffset, @@ -3041,11 +3053,11 @@ void MachORebaseEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-rebase", - llvm::dbgs() << "REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB: " - << format("SegmentOffset=0x%06X", SegmentOffset) - << ", AdvanceAmount=" << AdvanceAmount - << ", RemainingLoopCount=" << RemainingLoopCount - << "\n"); + dbgs() << "REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB: " + << format("SegmentOffset=0x%06X", SegmentOffset) + << ", AdvanceAmount=" << AdvanceAmount + << ", RemainingLoopCount=" << RemainingLoopCount + << "\n"); return; default: *E = malformedError("bad rebase info (bad opcode value 0x" + @@ -3131,10 +3143,8 @@ iterator_range<rebase_iterator> MachOObjectFile::rebaseTable(Error &Err) { MachOBindEntry::MachOBindEntry(Error *E, const MachOObjectFile *O, ArrayRef<uint8_t> Bytes, bool is64Bit, Kind BK) - : E(E), O(O), Opcodes(Bytes), Ptr(Bytes.begin()), SegmentOffset(0), - SegmentIndex(-1), LibraryOrdinalSet(false), Ordinal(0), Flags(0), - Addend(0), RemainingLoopCount(0), AdvanceAmount(0), BindType(0), - PointerSize(is64Bit ? 8 : 4), TableKind(BK), Done(false) {} + : E(E), O(O), Opcodes(Bytes), Ptr(Bytes.begin()), + PointerSize(is64Bit ? 8 : 4), TableKind(BK) {} void MachOBindEntry::moveToFirst() { Ptr = Opcodes.begin(); @@ -3189,7 +3199,7 @@ void MachOBindEntry::moveNext() { } More = false; moveToEnd(); - DEBUG_WITH_TYPE("mach-o-bind", llvm::dbgs() << "BIND_OPCODE_DONE\n"); + DEBUG_WITH_TYPE("mach-o-bind", dbgs() << "BIND_OPCODE_DONE\n"); break; case MachO::BIND_OPCODE_SET_DYLIB_ORDINAL_IMM: if (TableKind == Kind::Weak) { @@ -3211,8 +3221,8 @@ void MachOBindEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_DYLIB_ORDINAL_IMM: " - << "Ordinal=" << Ordinal << "\n"); + dbgs() << "BIND_OPCODE_SET_DYLIB_ORDINAL_IMM: " + << "Ordinal=" << Ordinal << "\n"); break; case MachO::BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB: if (TableKind == Kind::Weak) { @@ -3241,8 +3251,8 @@ void MachOBindEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB: " - << "Ordinal=" << Ordinal << "\n"); + dbgs() << "BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB: " + << "Ordinal=" << Ordinal << "\n"); break; case MachO::BIND_OPCODE_SET_DYLIB_SPECIAL_IMM: if (TableKind == Kind::Weak) { @@ -3267,8 +3277,8 @@ void MachOBindEntry::moveNext() { Ordinal = 0; DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_DYLIB_SPECIAL_IMM: " - << "Ordinal=" << Ordinal << "\n"); + dbgs() << "BIND_OPCODE_SET_DYLIB_SPECIAL_IMM: " + << "Ordinal=" << Ordinal << "\n"); break; case MachO::BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM: Flags = ImmValue; @@ -3288,8 +3298,8 @@ void MachOBindEntry::moveNext() { ++Ptr; DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM: " - << "SymbolName=" << SymbolName << "\n"); + dbgs() << "BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM: " + << "SymbolName=" << SymbolName << "\n"); if (TableKind == Kind::Weak) { if (ImmValue & MachO::BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION) return; @@ -3306,8 +3316,8 @@ void MachOBindEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_TYPE_IMM: " - << "BindType=" << (int)BindType << "\n"); + dbgs() << "BIND_OPCODE_SET_TYPE_IMM: " + << "BindType=" << (int)BindType << "\n"); break; case MachO::BIND_OPCODE_SET_ADDEND_SLEB: Addend = readSLEB128(&error); @@ -3320,8 +3330,8 @@ void MachOBindEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_ADDEND_SLEB: " - << "Addend=" << Addend << "\n"); + dbgs() << "BIND_OPCODE_SET_ADDEND_SLEB: " + << "Addend=" << Addend << "\n"); break; case MachO::BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: SegmentIndex = ImmValue; @@ -3343,10 +3353,10 @@ void MachOBindEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: " - << "SegmentIndex=" << SegmentIndex << ", " - << format("SegmentOffset=0x%06X", SegmentOffset) - << "\n"); + dbgs() << "BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB: " + << "SegmentIndex=" << SegmentIndex << ", " + << format("SegmentOffset=0x%06X", SegmentOffset) + << "\n"); break; case MachO::BIND_OPCODE_ADD_ADDR_ULEB: SegmentOffset += readULEB128(&error); @@ -3366,9 +3376,9 @@ void MachOBindEntry::moveNext() { return; } DEBUG_WITH_TYPE("mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_ADD_ADDR_ULEB: " - << format("SegmentOffset=0x%06X", - SegmentOffset) << "\n"); + dbgs() << "BIND_OPCODE_ADD_ADDR_ULEB: " + << format("SegmentOffset=0x%06X", + SegmentOffset) << "\n"); break; case MachO::BIND_OPCODE_DO_BIND: AdvanceAmount = PointerSize; @@ -3395,9 +3405,9 @@ void MachOBindEntry::moveNext() { return; } DEBUG_WITH_TYPE("mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_DO_BIND: " - << format("SegmentOffset=0x%06X", - SegmentOffset) << "\n"); + dbgs() << "BIND_OPCODE_DO_BIND: " + << format("SegmentOffset=0x%06X", + SegmentOffset) << "\n"); return; case MachO::BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB: if (TableKind == Kind::Lazy) { @@ -3452,11 +3462,11 @@ void MachOBindEntry::moveNext() { RemainingLoopCount = 0; DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB: " - << format("SegmentOffset=0x%06X", SegmentOffset) - << ", AdvanceAmount=" << AdvanceAmount - << ", RemainingLoopCount=" << RemainingLoopCount - << "\n"); + dbgs() << "BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB: " + << format("SegmentOffset=0x%06X", SegmentOffset) + << ", AdvanceAmount=" << AdvanceAmount + << ", RemainingLoopCount=" << RemainingLoopCount + << "\n"); return; case MachO::BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED: if (TableKind == Kind::Lazy) { @@ -3501,10 +3511,9 @@ void MachOBindEntry::moveNext() { return; } DEBUG_WITH_TYPE("mach-o-bind", - llvm::dbgs() + dbgs() << "BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED: " - << format("SegmentOffset=0x%06X", - SegmentOffset) << "\n"); + << format("SegmentOffset=0x%06X", SegmentOffset) << "\n"); return; case MachO::BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB: if (TableKind == Kind::Lazy) { @@ -3568,11 +3577,11 @@ void MachOBindEntry::moveNext() { } DEBUG_WITH_TYPE( "mach-o-bind", - llvm::dbgs() << "BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB: " - << format("SegmentOffset=0x%06X", SegmentOffset) - << ", AdvanceAmount=" << AdvanceAmount - << ", RemainingLoopCount=" << RemainingLoopCount - << "\n"); + dbgs() << "BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB: " + << format("SegmentOffset=0x%06X", SegmentOffset) + << ", AdvanceAmount=" << AdvanceAmount + << ", RemainingLoopCount=" << RemainingLoopCount + << "\n"); return; default: *E = malformedError("bad bind info (bad opcode value 0x" + |
