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062cef56d2
This patch adds basic support for MachO::load_command. Load command types and sizes are encoded in the YAML and expanded back into MachO. The YAML doesn't yet support load command structs, that is coming next. In the meantime as a temporary measure when writing MachO files the load commands are padded with zeros so that the generated binary is valid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@269442 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.0 KiB
C++
60 lines
2.0 KiB
C++
//===- MachOYAML.cpp - MachO YAMLIO implementation ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines classes for handling the YAML representation of MachO.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/MachOYAML.h"
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#include "llvm/Support/Casting.h"
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namespace llvm {
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MachOYAML::LoadCommand::~LoadCommand() {}
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namespace yaml {
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void MappingTraits<MachOYAML::FileHeader>::mapping(
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IO &IO, MachOYAML::FileHeader &FileHdr) {
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IO.mapRequired("magic", FileHdr.magic);
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IO.mapRequired("cputype", FileHdr.cputype);
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IO.mapRequired("cpusubtype", FileHdr.cpusubtype);
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IO.mapRequired("filetype", FileHdr.filetype);
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IO.mapRequired("ncmds", FileHdr.ncmds);
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IO.mapRequired("sizeofcmds", FileHdr.sizeofcmds);
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IO.mapRequired("flags", FileHdr.flags);
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IO.mapOptional("reserved", FileHdr.reserved,
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static_cast<llvm::yaml::Hex32>(0xDEADBEEFu));
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}
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void MappingTraits<MachOYAML::Object>::mapping(IO &IO,
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MachOYAML::Object &Object) {
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// If the context isn't already set, tag the document as !mach-o.
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// For Fat files there will be a different tag so they can be differentiated.
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if (!IO.getContext()) {
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IO.setContext(&Object);
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IO.mapTag("!mach-o", true);
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}
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IO.mapRequired("FileHeader", Object.Header);
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IO.mapOptional("LoadCommands", Object.LoadCommands);
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IO.setContext(nullptr);
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}
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void MappingTraits<std::unique_ptr<MachOYAML::LoadCommand>>::mapping(
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IO &IO, std::unique_ptr<MachOYAML::LoadCommand> &LoadCommand) {
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if (!IO.outputting())
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LoadCommand.reset(new MachOYAML::LoadCommand());
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IO.mapRequired("cmd", LoadCommand->cmd);
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IO.mapRequired("cmdsize", LoadCommand->cmdsize);
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}
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} // namespace llvm::yaml
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} // namespace llvm
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