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f2869de8da
(& add a few accessors/make a couple of things public for this - it's a bit of a toss-up, but I think I prefer it this way, keeping some more of the meaty code down in DwarfCompileUnit - if only to make for smaller implementation files, etc) I think we could simplify range handling a bit if we removed the range lists from each unit and just put a single range list on DwarfDebug, similar to address pooling. llvm-svn: 219370
94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
//===-- llvm/CodeGen/DwarfCompileUnit.h - Dwarf Compile Unit ---*- C++ -*--===//
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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 contains support for writing dwarf compile unit.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
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#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFCOMPILEUNIT_H
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#include "DwarfUnit.h"
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#include "llvm/Support/Dwarf.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/IR/DebugInfo.h"
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namespace llvm {
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class AsmPrinter;
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class DIE;
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class DwarfDebug;
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class DwarfFile;
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class MCSymbol;
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class LexicalScope;
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class DwarfCompileUnit : public DwarfUnit {
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/// The attribute index of DW_AT_stmt_list in the compile unit DIE, avoiding
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/// the need to search for it in applyStmtList.
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unsigned stmtListIndex;
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public:
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DwarfCompileUnit(unsigned UID, DICompileUnit Node, AsmPrinter *A,
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DwarfDebug *DW, DwarfFile *DWU);
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void initStmtList(MCSymbol *DwarfLineSectionSym);
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/// Apply the DW_AT_stmt_list from this compile unit to the specified DIE.
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void applyStmtList(DIE &D);
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/// getOrCreateGlobalVariableDIE - get or create global variable DIE.
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DIE *getOrCreateGlobalVariableDIE(DIGlobalVariable GV);
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/// addLabelAddress - Add a dwarf label attribute data and value using
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/// either DW_FORM_addr or DW_FORM_GNU_addr_index.
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void addLabelAddress(DIE &Die, dwarf::Attribute Attribute,
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const MCSymbol *Label);
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/// addLocalLabelAddress - Add a dwarf label attribute data and value using
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/// DW_FORM_addr only.
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void addLocalLabelAddress(DIE &Die, dwarf::Attribute Attribute,
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const MCSymbol *Label);
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/// addSectionDelta - Add a label delta attribute data and value.
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void addSectionDelta(DIE &Die, dwarf::Attribute Attribute, const MCSymbol *Hi,
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const MCSymbol *Lo);
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DwarfCompileUnit &getCU() override { return *this; }
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unsigned getOrCreateSourceID(StringRef FileName, StringRef DirName) override;
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/// addRange - Add an address range to the list of ranges for this unit.
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void addRange(RangeSpan Range);
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void attachLowHighPC(DIE &D, const MCSymbol *Begin, const MCSymbol *End);
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/// addSectionLabel - Add a Dwarf section label attribute data and value.
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///
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void addSectionLabel(DIE &Die, dwarf::Attribute Attribute,
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const MCSymbol *Label, const MCSymbol *Sec);
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/// \brief Find DIE for the given subprogram and attach appropriate
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/// DW_AT_low_pc and DW_AT_high_pc attributes. If there are global
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/// variables in this scope then create and insert DIEs for these
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/// variables.
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DIE &updateSubprogramScopeDIE(DISubprogram SP);
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void constructScopeDIE(LexicalScope *Scope,
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SmallVectorImpl<std::unique_ptr<DIE>> &FinalChildren);
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/// \brief A helper function to construct a RangeSpanList for a given
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/// lexical scope.
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void addScopeRangeList(DIE &ScopeDIE,
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const SmallVectorImpl<InsnRange> &Range);
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};
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} // end llvm namespace
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#endif
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