5aeabf2df9
XCOFF encodes a symbol type and alignment in a single 8-bit field. It is easier to read and write YAML files if the fields can be specified separately. This PR causes obj2yaml to write the fields separately and allows yaml2obj to read either the single combined field or the separate fields.
387 lines
12 KiB
C++
387 lines
12 KiB
C++
//===-- XCOFFYAML.cpp - XCOFF YAMLIO implementation -------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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 XCOFF.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/XCOFFYAML.h"
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#include "llvm/BinaryFormat/XCOFF.h"
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#include <string.h>
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namespace llvm {
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namespace XCOFFYAML {
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Object::Object() { memset(&Header, 0, sizeof(Header)); }
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AuxSymbolEnt::~AuxSymbolEnt() = default;
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} // namespace XCOFFYAML
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namespace yaml {
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void ScalarBitSetTraits<XCOFF::SectionTypeFlags>::bitset(
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IO &IO, XCOFF::SectionTypeFlags &Value) {
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#define ECase(X) IO.bitSetCase(Value, #X, XCOFF::X)
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ECase(STYP_PAD);
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ECase(STYP_DWARF);
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ECase(STYP_TEXT);
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ECase(STYP_DATA);
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ECase(STYP_BSS);
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ECase(STYP_EXCEPT);
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ECase(STYP_INFO);
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ECase(STYP_TDATA);
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ECase(STYP_TBSS);
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ECase(STYP_LOADER);
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ECase(STYP_DEBUG);
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ECase(STYP_TYPCHK);
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ECase(STYP_OVRFLO);
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#undef ECase
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}
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void ScalarEnumerationTraits<XCOFF::StorageClass>::enumeration(
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IO &IO, XCOFF::StorageClass &Value) {
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#define ECase(X) IO.enumCase(Value, #X, XCOFF::X)
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ECase(C_NULL);
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ECase(C_AUTO);
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ECase(C_EXT);
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ECase(C_STAT);
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ECase(C_REG);
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ECase(C_EXTDEF);
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ECase(C_LABEL);
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ECase(C_ULABEL);
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ECase(C_MOS);
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ECase(C_ARG);
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ECase(C_STRTAG);
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ECase(C_MOU);
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ECase(C_UNTAG);
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ECase(C_TPDEF);
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ECase(C_USTATIC);
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ECase(C_ENTAG);
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ECase(C_MOE);
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ECase(C_REGPARM);
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ECase(C_FIELD);
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ECase(C_BLOCK);
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ECase(C_FCN);
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ECase(C_EOS);
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ECase(C_FILE);
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ECase(C_LINE);
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ECase(C_ALIAS);
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ECase(C_HIDDEN);
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ECase(C_HIDEXT);
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ECase(C_BINCL);
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ECase(C_EINCL);
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ECase(C_INFO);
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ECase(C_WEAKEXT);
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ECase(C_DWARF);
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ECase(C_GSYM);
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ECase(C_LSYM);
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ECase(C_PSYM);
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ECase(C_RSYM);
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ECase(C_RPSYM);
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ECase(C_STSYM);
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ECase(C_TCSYM);
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ECase(C_BCOMM);
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ECase(C_ECOML);
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ECase(C_ECOMM);
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ECase(C_DECL);
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ECase(C_ENTRY);
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ECase(C_FUN);
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ECase(C_BSTAT);
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ECase(C_ESTAT);
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ECase(C_GTLS);
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ECase(C_STTLS);
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ECase(C_EFCN);
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#undef ECase
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}
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void ScalarEnumerationTraits<XCOFF::StorageMappingClass>::enumeration(
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IO &IO, XCOFF::StorageMappingClass &Value) {
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#define ECase(X) IO.enumCase(Value, #X, XCOFF::X)
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ECase(XMC_PR);
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ECase(XMC_RO);
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ECase(XMC_DB);
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ECase(XMC_GL);
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ECase(XMC_XO);
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ECase(XMC_SV);
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ECase(XMC_SV64);
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ECase(XMC_SV3264);
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ECase(XMC_TI);
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ECase(XMC_TB);
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ECase(XMC_RW);
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ECase(XMC_TC0);
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ECase(XMC_TC);
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ECase(XMC_TD);
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ECase(XMC_DS);
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ECase(XMC_UA);
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ECase(XMC_BS);
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ECase(XMC_UC);
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ECase(XMC_TL);
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ECase(XMC_UL);
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ECase(XMC_TE);
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#undef ECase
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}
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void ScalarEnumerationTraits<XCOFF::SymbolType>::enumeration(
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IO &IO, XCOFF::SymbolType &Value) {
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#define ECase(X) IO.enumCase(Value, #X, XCOFF::X)
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ECase(XTY_ER);
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ECase(XTY_SD);
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ECase(XTY_LD);
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ECase(XTY_CM);
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#undef ECase
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IO.enumFallback<Hex8>(Value);
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}
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void ScalarEnumerationTraits<XCOFFYAML::AuxSymbolType>::enumeration(
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IO &IO, XCOFFYAML::AuxSymbolType &Type) {
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#define ECase(X) IO.enumCase(Type, #X, XCOFFYAML::X)
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ECase(AUX_EXCEPT);
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ECase(AUX_FCN);
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ECase(AUX_SYM);
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ECase(AUX_FILE);
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ECase(AUX_CSECT);
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ECase(AUX_SECT);
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ECase(AUX_STAT);
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#undef ECase
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}
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void ScalarEnumerationTraits<XCOFF::CFileStringType>::enumeration(
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IO &IO, XCOFF::CFileStringType &Type) {
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#define ECase(X) IO.enumCase(Type, #X, XCOFF::X)
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ECase(XFT_FN);
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ECase(XFT_CT);
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ECase(XFT_CV);
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ECase(XFT_CD);
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#undef ECase
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}
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struct NSectionFlags {
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NSectionFlags(IO &) : Flags(XCOFF::SectionTypeFlags(0)) {}
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NSectionFlags(IO &, uint32_t C) : Flags(XCOFF::SectionTypeFlags(C)) {}
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uint32_t denormalize(IO &) { return Flags; }
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XCOFF::SectionTypeFlags Flags;
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};
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void MappingTraits<XCOFFYAML::FileHeader>::mapping(
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IO &IO, XCOFFYAML::FileHeader &FileHdr) {
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IO.mapOptional("MagicNumber", FileHdr.Magic);
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IO.mapOptional("NumberOfSections", FileHdr.NumberOfSections);
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IO.mapOptional("CreationTime", FileHdr.TimeStamp);
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IO.mapOptional("OffsetToSymbolTable", FileHdr.SymbolTableOffset);
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IO.mapOptional("EntriesInSymbolTable", FileHdr.NumberOfSymTableEntries);
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IO.mapOptional("AuxiliaryHeaderSize", FileHdr.AuxHeaderSize);
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IO.mapOptional("Flags", FileHdr.Flags);
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}
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void MappingTraits<XCOFFYAML::AuxiliaryHeader>::mapping(
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IO &IO, XCOFFYAML::AuxiliaryHeader &AuxHdr) {
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IO.mapOptional("Magic", AuxHdr.Magic);
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IO.mapOptional("Version", AuxHdr.Version);
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IO.mapOptional("TextStartAddr", AuxHdr.TextStartAddr);
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IO.mapOptional("DataStartAddr", AuxHdr.DataStartAddr);
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IO.mapOptional("TOCAnchorAddr", AuxHdr.TOCAnchorAddr);
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IO.mapOptional("TextSectionSize", AuxHdr.TextSize);
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IO.mapOptional("DataSectionSize", AuxHdr.InitDataSize);
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IO.mapOptional("BssSectionSize", AuxHdr.BssDataSize);
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IO.mapOptional("SecNumOfEntryPoint", AuxHdr.SecNumOfEntryPoint);
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IO.mapOptional("SecNumOfText", AuxHdr.SecNumOfText);
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IO.mapOptional("SecNumOfData", AuxHdr.SecNumOfData);
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IO.mapOptional("SecNumOfTOC", AuxHdr.SecNumOfTOC);
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IO.mapOptional("SecNumOfLoader", AuxHdr.SecNumOfLoader);
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IO.mapOptional("SecNumOfBSS", AuxHdr.SecNumOfBSS);
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IO.mapOptional("MaxAlignOfText", AuxHdr.MaxAlignOfText);
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IO.mapOptional("MaxAlignOfData", AuxHdr.MaxAlignOfData);
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IO.mapOptional("ModuleType", AuxHdr.CpuFlag);
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IO.mapOptional("TextPageSize", AuxHdr.TextPageSize);
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IO.mapOptional("DataPageSize", AuxHdr.DataPageSize);
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IO.mapOptional("StackPageSize", AuxHdr.StackPageSize);
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IO.mapOptional("FlagAndTDataAlignment", AuxHdr.FlagAndTDataAlignment);
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IO.mapOptional("EntryPointAddr", AuxHdr.EntryPointAddr);
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IO.mapOptional("MaxStackSize", AuxHdr.MaxStackSize);
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IO.mapOptional("MaxDataSize", AuxHdr.MaxDataSize);
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IO.mapOptional("SecNumOfTData", AuxHdr.SecNumOfTData);
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IO.mapOptional("SecNumOfTBSS", AuxHdr.SecNumOfTBSS);
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IO.mapOptional("Flag", AuxHdr.Flag);
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}
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void MappingTraits<XCOFFYAML::Relocation>::mapping(IO &IO,
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XCOFFYAML::Relocation &R) {
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IO.mapOptional("Address", R.VirtualAddress);
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IO.mapOptional("Symbol", R.SymbolIndex);
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IO.mapOptional("Info", R.Info);
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IO.mapOptional("Type", R.Type);
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}
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void MappingTraits<XCOFFYAML::Section>::mapping(IO &IO,
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XCOFFYAML::Section &Sec) {
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MappingNormalization<NSectionFlags, uint32_t> NC(IO, Sec.Flags);
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IO.mapOptional("Name", Sec.SectionName);
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IO.mapOptional("Address", Sec.Address);
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IO.mapOptional("Size", Sec.Size);
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IO.mapOptional("FileOffsetToData", Sec.FileOffsetToData);
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IO.mapOptional("FileOffsetToRelocations", Sec.FileOffsetToRelocations);
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IO.mapOptional("FileOffsetToLineNumbers", Sec.FileOffsetToLineNumbers);
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IO.mapOptional("NumberOfRelocations", Sec.NumberOfRelocations);
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IO.mapOptional("NumberOfLineNumbers", Sec.NumberOfLineNumbers);
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IO.mapOptional("Flags", NC->Flags);
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IO.mapOptional("SectionData", Sec.SectionData);
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IO.mapOptional("Relocations", Sec.Relocations);
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::CsectAuxEnt &AuxSym, bool Is64) {
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IO.mapOptional("ParameterHashIndex", AuxSym.ParameterHashIndex);
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IO.mapOptional("TypeChkSectNum", AuxSym.TypeChkSectNum);
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IO.mapOptional("SymbolAlignmentAndType", AuxSym.SymbolAlignmentAndType);
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IO.mapOptional("SymbolType", AuxSym.SymbolType);
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IO.mapOptional("SymbolAlignment", AuxSym.SymbolAlignment);
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IO.mapOptional("StorageMappingClass", AuxSym.StorageMappingClass);
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if (Is64) {
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IO.mapOptional("SectionOrLengthLo", AuxSym.SectionOrLengthLo);
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IO.mapOptional("SectionOrLengthHi", AuxSym.SectionOrLengthHi);
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} else {
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IO.mapOptional("SectionOrLength", AuxSym.SectionOrLength);
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IO.mapOptional("StabInfoIndex", AuxSym.StabInfoIndex);
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IO.mapOptional("StabSectNum", AuxSym.StabSectNum);
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}
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::FileAuxEnt &AuxSym) {
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IO.mapOptional("FileNameOrString", AuxSym.FileNameOrString);
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IO.mapOptional("FileStringType", AuxSym.FileStringType);
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::BlockAuxEnt &AuxSym, bool Is64) {
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if (Is64) {
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IO.mapOptional("LineNum", AuxSym.LineNum);
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} else {
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IO.mapOptional("LineNumHi", AuxSym.LineNumHi);
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IO.mapOptional("LineNumLo", AuxSym.LineNumLo);
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}
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::FunctionAuxEnt &AuxSym,
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bool Is64) {
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if (!Is64)
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IO.mapOptional("OffsetToExceptionTbl", AuxSym.OffsetToExceptionTbl);
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IO.mapOptional("SizeOfFunction", AuxSym.SizeOfFunction);
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IO.mapOptional("SymIdxOfNextBeyond", AuxSym.SymIdxOfNextBeyond);
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IO.mapOptional("PtrToLineNum", AuxSym.PtrToLineNum);
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::ExcpetionAuxEnt &AuxSym) {
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IO.mapOptional("OffsetToExceptionTbl", AuxSym.OffsetToExceptionTbl);
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IO.mapOptional("SizeOfFunction", AuxSym.SizeOfFunction);
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IO.mapOptional("SymIdxOfNextBeyond", AuxSym.SymIdxOfNextBeyond);
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::SectAuxEntForDWARF &AuxSym) {
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IO.mapOptional("LengthOfSectionPortion", AuxSym.LengthOfSectionPortion);
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IO.mapOptional("NumberOfRelocEnt", AuxSym.NumberOfRelocEnt);
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}
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static void auxSymMapping(IO &IO, XCOFFYAML::SectAuxEntForStat &AuxSym) {
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IO.mapOptional("SectionLength", AuxSym.SectionLength);
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IO.mapOptional("NumberOfRelocEnt", AuxSym.NumberOfRelocEnt);
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IO.mapOptional("NumberOfLineNum", AuxSym.NumberOfLineNum);
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}
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template <typename AuxEntT>
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static void ResetAuxSym(IO &IO,
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std::unique_ptr<XCOFFYAML::AuxSymbolEnt> &AuxSym) {
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if (!IO.outputting())
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AuxSym.reset(new AuxEntT);
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}
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void MappingTraits<std::unique_ptr<XCOFFYAML::AuxSymbolEnt>>::mapping(
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IO &IO, std::unique_ptr<XCOFFYAML::AuxSymbolEnt> &AuxSym) {
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const bool Is64 =
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static_cast<XCOFFYAML::Object *>(IO.getContext())->Header.Magic ==
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(llvm::yaml::Hex16)XCOFF::XCOFF64;
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XCOFFYAML::AuxSymbolType AuxType;
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if (IO.outputting())
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AuxType = AuxSym.get()->Type;
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IO.mapRequired("Type", AuxType);
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switch (AuxType) {
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case XCOFFYAML::AUX_EXCEPT:
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if (!Is64) {
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IO.setError("an auxiliary symbol of type AUX_EXCEPT cannot be defined in "
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"XCOFF32");
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return;
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}
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ResetAuxSym<XCOFFYAML::ExcpetionAuxEnt>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::ExcpetionAuxEnt>(AuxSym.get()));
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break;
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case XCOFFYAML::AUX_FCN:
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ResetAuxSym<XCOFFYAML::FunctionAuxEnt>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::FunctionAuxEnt>(AuxSym.get()), Is64);
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break;
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case XCOFFYAML::AUX_SYM:
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ResetAuxSym<XCOFFYAML::BlockAuxEnt>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::BlockAuxEnt>(AuxSym.get()), Is64);
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break;
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case XCOFFYAML::AUX_FILE:
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ResetAuxSym<XCOFFYAML::FileAuxEnt>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::FileAuxEnt>(AuxSym.get()));
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break;
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case XCOFFYAML::AUX_CSECT:
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ResetAuxSym<XCOFFYAML::CsectAuxEnt>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::CsectAuxEnt>(AuxSym.get()), Is64);
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break;
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case XCOFFYAML::AUX_SECT:
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ResetAuxSym<XCOFFYAML::SectAuxEntForDWARF>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::SectAuxEntForDWARF>(AuxSym.get()));
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break;
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case XCOFFYAML::AUX_STAT:
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if (Is64) {
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IO.setError(
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"an auxiliary symbol of type AUX_STAT cannot be defined in XCOFF64");
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return;
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}
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ResetAuxSym<XCOFFYAML::SectAuxEntForStat>(IO, AuxSym);
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auxSymMapping(IO, *cast<XCOFFYAML::SectAuxEntForStat>(AuxSym.get()));
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break;
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}
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}
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void MappingTraits<XCOFFYAML::Symbol>::mapping(IO &IO, XCOFFYAML::Symbol &S) {
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IO.mapOptional("Name", S.SymbolName);
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IO.mapOptional("Value", S.Value);
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IO.mapOptional("Section", S.SectionName);
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IO.mapOptional("SectionIndex", S.SectionIndex);
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IO.mapOptional("Type", S.Type);
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IO.mapOptional("StorageClass", S.StorageClass);
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IO.mapOptional("NumberOfAuxEntries", S.NumberOfAuxEntries);
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IO.mapOptional("AuxEntries", S.AuxEntries);
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}
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void MappingTraits<XCOFFYAML::StringTable>::mapping(
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IO &IO, XCOFFYAML::StringTable &Str) {
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IO.mapOptional("ContentSize", Str.ContentSize);
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IO.mapOptional("Length", Str.Length);
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IO.mapOptional("Strings", Str.Strings);
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IO.mapOptional("RawContent", Str.RawContent);
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}
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void MappingTraits<XCOFFYAML::Object>::mapping(IO &IO, XCOFFYAML::Object &Obj) {
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IO.setContext(&Obj);
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IO.mapTag("!XCOFF", true);
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IO.mapRequired("FileHeader", Obj.Header);
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IO.mapOptional("AuxiliaryHeader", Obj.AuxHeader);
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IO.mapOptional("Sections", Obj.Sections);
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IO.mapOptional("Symbols", Obj.Symbols);
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IO.mapOptional("StringTable", Obj.StrTbl);
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IO.setContext(nullptr);
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}
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} // namespace yaml
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} // namespace llvm
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