mirror of
https://github.com/c64scene-ar/llvm-6502.git
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e38825f490
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174976 91177308-0d34-0410-b5e6-96231b3b80d8
142 lines
4.2 KiB
C++
142 lines
4.2 KiB
C++
//===-- DIContext.h ---------------------------------------------*- 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 defines DIContext, an abstract data structure that holds
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// debug information data.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_DICONTEXT_H
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#define LLVM_DEBUGINFO_DICONTEXT_H
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Object/RelocVisitor.h"
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#include "llvm/Support/DataTypes.h"
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namespace llvm {
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class raw_ostream;
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/// DILineInfo - a format-neutral container for source line information.
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class DILineInfo {
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SmallString<16> FileName;
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SmallString<16> FunctionName;
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uint32_t Line;
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uint32_t Column;
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public:
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DILineInfo()
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: FileName("<invalid>"), FunctionName("<invalid>"),
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Line(0), Column(0) {}
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DILineInfo(const SmallString<16> &fileName,
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const SmallString<16> &functionName,
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uint32_t line, uint32_t column)
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: FileName(fileName), FunctionName(functionName),
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Line(line), Column(column) {}
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const char *getFileName() { return FileName.c_str(); }
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const char *getFunctionName() { return FunctionName.c_str(); }
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uint32_t getLine() const { return Line; }
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uint32_t getColumn() const { return Column; }
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bool operator==(const DILineInfo &RHS) const {
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return Line == RHS.Line && Column == RHS.Column &&
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FileName.equals(RHS.FileName) &&
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FunctionName.equals(RHS.FunctionName);
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}
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bool operator!=(const DILineInfo &RHS) const {
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return !(*this == RHS);
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}
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};
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typedef SmallVector<std::pair<uint64_t, DILineInfo>, 16> DILineInfoTable;
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/// DIInliningInfo - a format-neutral container for inlined code description.
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class DIInliningInfo {
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SmallVector<DILineInfo, 4> Frames;
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public:
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DIInliningInfo() {}
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DILineInfo getFrame(unsigned Index) const {
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assert(Index < Frames.size());
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return Frames[Index];
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}
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uint32_t getNumberOfFrames() const {
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return Frames.size();
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}
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void addFrame(const DILineInfo &Frame) {
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Frames.push_back(Frame);
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}
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};
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/// DILineInfoSpecifier - controls which fields of DILineInfo container
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/// should be filled with data.
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class DILineInfoSpecifier {
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const uint32_t Flags; // Or'ed flags that set the info we want to fetch.
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public:
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enum Specification {
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FileLineInfo = 1 << 0,
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AbsoluteFilePath = 1 << 1,
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FunctionName = 1 << 2
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};
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// Use file/line info by default.
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DILineInfoSpecifier(uint32_t flags = FileLineInfo) : Flags(flags) {}
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bool needs(Specification spec) const {
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return (Flags & spec) > 0;
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}
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};
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/// Selects which debug sections get dumped.
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enum DIDumpType {
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DIDT_Null,
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DIDT_All,
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DIDT_Abbrev,
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DIDT_AbbrevDwo,
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DIDT_Aranges,
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DIDT_Frames,
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DIDT_Info,
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DIDT_InfoDwo,
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DIDT_Line,
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DIDT_Ranges,
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DIDT_Pubnames,
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DIDT_Str,
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DIDT_StrDwo,
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DIDT_StrOffsetsDwo
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};
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// In place of applying the relocations to the data we've read from disk we use
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// a separate mapping table to the side and checking that at locations in the
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// dwarf where we expect relocated values. This adds a bit of complexity to the
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// dwarf parsing/extraction at the benefit of not allocating memory for the
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// entire size of the debug info sections.
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typedef DenseMap<uint64_t, std::pair<uint8_t, int64_t> > RelocAddrMap;
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class DIContext {
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public:
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virtual ~DIContext();
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/// getDWARFContext - get a context for binary DWARF data.
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static DIContext *getDWARFContext(object::ObjectFile *);
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virtual void dump(raw_ostream &OS, DIDumpType DumpType = DIDT_All) = 0;
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virtual DILineInfo getLineInfoForAddress(uint64_t Address,
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DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
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virtual DILineInfoTable getLineInfoForAddressRange(uint64_t Address,
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uint64_t Size, DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
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virtual DIInliningInfo getInliningInfoForAddress(uint64_t Address,
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DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
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};
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}
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#endif
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