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b434098ac8
SUMMARY: 1. in the patch , remove setting storageclass in function .getXCOFFSection and construct function of class MCSectionXCOFF there are XCOFF::StorageMappingClass MappingClass; XCOFF::SymbolType Type; XCOFF::StorageClass StorageClass; in the MCSectionXCOFF class, these attribute only used in the XCOFFObjectWriter, (asm path do not need the StorageClass) we need get the value of StorageClass, Type,MappingClass before we invoke the getXCOFFSection every time. actually , we can get the StorageClass of the MCSectionXCOFF from it's delegated symbol. 2. we also change the oprand of branch instruction from symbol name to qualify symbol name. for example change bl .foo extern .foo to bl .foo[PR] extern .foo[PR] 3. and if there is reference indirect call a function bar. we also add extern .bar[PR] Reviewers: Jason liu, Xiangling Liao Differential Revision: https://reviews.llvm.org/D84765
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
//===- MCSymbolXCOFF.h - ----------------------------------------*- 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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#ifndef LLVM_MC_MCSYMBOLXCOFF_H
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#define LLVM_MC_MCSYMBOLXCOFF_H
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/BinaryFormat/XCOFF.h"
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#include "llvm/MC/MCSymbol.h"
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namespace llvm {
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class MCSectionXCOFF;
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class MCSymbolXCOFF : public MCSymbol {
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public:
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MCSymbolXCOFF(const StringMapEntry<bool> *Name, bool isTemporary)
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: MCSymbol(SymbolKindXCOFF, Name, isTemporary) {}
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static bool classof(const MCSymbol *S) { return S->isXCOFF(); }
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static StringRef getUnqualifiedName(StringRef Name) {
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if (Name.back() == ']') {
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StringRef Lhs, Rhs;
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std::tie(Lhs, Rhs) = Name.rsplit('[');
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assert(!Rhs.empty() && "Invalid SMC format in XCOFF symbol.");
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return Lhs;
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}
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return Name;
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}
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void setStorageClass(XCOFF::StorageClass SC) {
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StorageClass = SC;
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};
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XCOFF::StorageClass getStorageClass() const {
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assert(StorageClass.hasValue() &&
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"StorageClass not set on XCOFF MCSymbol.");
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return StorageClass.getValue();
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}
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StringRef getUnqualifiedName() const { return getUnqualifiedName(getName()); }
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MCSectionXCOFF *getRepresentedCsect() const;
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void setRepresentedCsect(MCSectionXCOFF *C);
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void setVisibilityType(XCOFF::VisibilityType SVT) { VisibilityType = SVT; };
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XCOFF::VisibilityType getVisibilityType() const { return VisibilityType; }
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bool hasRename() const { return !SymbolTableName.empty(); }
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void setSymbolTableName(StringRef STN) { SymbolTableName = STN; }
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StringRef getSymbolTableName() const {
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if (hasRename())
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return SymbolTableName;
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return getUnqualifiedName();
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}
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private:
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Optional<XCOFF::StorageClass> StorageClass;
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MCSectionXCOFF *RepresentedCsect = nullptr;
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XCOFF::VisibilityType VisibilityType = XCOFF::SYM_V_UNSPECIFIED;
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StringRef SymbolTableName;
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};
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} // end namespace llvm
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#endif // LLVM_MC_MCSYMBOLXCOFF_H
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