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llvm-mirror/lib/ObjectYAML/XCOFFYAML.cpp
Esme-Yi 4a3c52750c [yaml2obj] Initial the support of yaml2obj for 32-bit XCOFF.
Summary: The patch implements the mapping of the Yaml
information to XCOFF object file to enable the yaml2obj
tool for XCOFF. Currently only 32-bit is supported.

Reviewed By: jhenderson, shchenz

Differential Revision: https://reviews.llvm.org/D95505
2021-06-07 04:14:44 +00:00

163 lines
4.6 KiB
C++

//===-- XCOFFYAML.cpp - XCOFF YAMLIO implementation -------------*- 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 classes for handling the YAML representation of XCOFF.
//
//===----------------------------------------------------------------------===//
#include "llvm/ObjectYAML/XCOFFYAML.h"
#include "llvm/BinaryFormat/XCOFF.h"
#include <string.h>
namespace llvm {
namespace XCOFFYAML {
Object::Object() { memset(&Header, 0, sizeof(Header)); }
} // namespace XCOFFYAML
namespace yaml {
void ScalarBitSetTraits<XCOFF::SectionTypeFlags>::bitset(
IO &IO, XCOFF::SectionTypeFlags &Value) {
#define ECase(X) IO.bitSetCase(Value, #X, XCOFF::X)
ECase(STYP_PAD);
ECase(STYP_DWARF);
ECase(STYP_TEXT);
ECase(STYP_DATA);
ECase(STYP_BSS);
ECase(STYP_EXCEPT);
ECase(STYP_INFO);
ECase(STYP_TDATA);
ECase(STYP_TBSS);
ECase(STYP_LOADER);
ECase(STYP_DEBUG);
ECase(STYP_TYPCHK);
ECase(STYP_OVRFLO);
#undef ECase
}
void ScalarEnumerationTraits<XCOFF::StorageClass>::enumeration(
IO &IO, XCOFF::StorageClass &Value) {
#define ECase(X) IO.enumCase(Value, #X, XCOFF::X)
ECase(C_NULL);
ECase(C_AUTO);
ECase(C_EXT);
ECase(C_STAT);
ECase(C_REG);
ECase(C_EXTDEF);
ECase(C_LABEL);
ECase(C_ULABEL);
ECase(C_MOS);
ECase(C_ARG);
ECase(C_STRTAG);
ECase(C_MOU);
ECase(C_UNTAG);
ECase(C_TPDEF);
ECase(C_USTATIC);
ECase(C_ENTAG);
ECase(C_MOE);
ECase(C_REGPARM);
ECase(C_FIELD);
ECase(C_BLOCK);
ECase(C_FCN);
ECase(C_EOS);
ECase(C_FILE);
ECase(C_LINE);
ECase(C_ALIAS);
ECase(C_HIDDEN);
ECase(C_HIDEXT);
ECase(C_BINCL);
ECase(C_EINCL);
ECase(C_INFO);
ECase(C_WEAKEXT);
ECase(C_DWARF);
ECase(C_GSYM);
ECase(C_LSYM);
ECase(C_PSYM);
ECase(C_RSYM);
ECase(C_RPSYM);
ECase(C_STSYM);
ECase(C_TCSYM);
ECase(C_BCOMM);
ECase(C_ECOML);
ECase(C_ECOMM);
ECase(C_DECL);
ECase(C_ENTRY);
ECase(C_FUN);
ECase(C_BSTAT);
ECase(C_ESTAT);
ECase(C_GTLS);
ECase(C_STTLS);
ECase(C_EFCN);
#undef ECase
}
struct NSectionFlags {
NSectionFlags(IO &) : Flags(XCOFF::SectionTypeFlags(0)) {}
NSectionFlags(IO &, uint32_t C) : Flags(XCOFF::SectionTypeFlags(C)) {}
uint32_t denormalize(IO &) { return Flags; }
XCOFF::SectionTypeFlags Flags;
};
void MappingTraits<XCOFFYAML::FileHeader>::mapping(
IO &IO, XCOFFYAML::FileHeader &FileHdr) {
IO.mapOptional("MagicNumber", FileHdr.Magic);
IO.mapOptional("NumberOfSections", FileHdr.NumberOfSections);
IO.mapOptional("CreationTime", FileHdr.TimeStamp);
IO.mapOptional("OffsetToSymbolTable", FileHdr.SymbolTableOffset);
IO.mapOptional("EntriesInSymbolTable", FileHdr.NumberOfSymTableEntries);
IO.mapOptional("AuxiliaryHeaderSize", FileHdr.AuxHeaderSize);
IO.mapOptional("Flags", FileHdr.Flags);
}
void MappingTraits<XCOFFYAML::Relocation>::mapping(IO &IO,
XCOFFYAML::Relocation &R) {
IO.mapOptional("Address", R.VirtualAddress);
IO.mapOptional("Symbol", R.SymbolIndex);
IO.mapOptional("Info", R.Info);
IO.mapOptional("Type", R.Type);
}
void MappingTraits<XCOFFYAML::Section>::mapping(IO &IO,
XCOFFYAML::Section &Sec) {
MappingNormalization<NSectionFlags, uint32_t> NC(IO, Sec.Flags);
IO.mapOptional("Name", Sec.SectionName);
IO.mapOptional("Address", Sec.Address);
IO.mapOptional("Size", Sec.Size);
IO.mapOptional("FileOffsetToData", Sec.FileOffsetToData);
IO.mapOptional("FileOffsetToRelocations", Sec.FileOffsetToRelocations);
IO.mapOptional("FileOffsetToLineNumbers", Sec.FileOffsetToLineNumbers);
IO.mapOptional("NumberOfRelocations", Sec.NumberOfRelocations);
IO.mapOptional("NumberOfLineNumbers", Sec.NumberOfLineNumbers);
IO.mapOptional("Flags", NC->Flags);
IO.mapOptional("SectionData", Sec.SectionData);
IO.mapOptional("Relocations", Sec.Relocations);
}
void MappingTraits<XCOFFYAML::Symbol>::mapping(IO &IO, XCOFFYAML::Symbol &S) {
IO.mapRequired("Name", S.SymbolName);
IO.mapOptional("Value", S.Value);
IO.mapOptional("Section", S.SectionName);
IO.mapOptional("Type", S.Type);
IO.mapOptional("StorageClass", S.StorageClass);
IO.mapOptional("NumberOfAuxEntries", S.NumberOfAuxEntries);
}
void MappingTraits<XCOFFYAML::Object>::mapping(IO &IO, XCOFFYAML::Object &Obj) {
IO.mapTag("!XCOFF", true);
IO.mapRequired("FileHeader", Obj.Header);
IO.mapOptional("Sections", Obj.Sections);
IO.mapOptional("Symbols", Obj.Symbols);
}
} // namespace yaml
} // namespace llvm