mirror of
https://github.com/c64scene-ar/llvm-6502.git
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63fd2af389
Summary: 1) Make llvm-symbolizer properly symbolize files with split debug info (by using stanalone .dwo files). 2) Make DWARFCompileUnit parse and store corresponding .dwo file, if necessary. 3) Make bits of DWARF parsing more CompileUnit-oriented. Reviewers: echristo Reviewed By: echristo CC: bkramer, llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1164 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@189329 91177308-0d34-0410-b5e6-96231b3b80d8
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
//===-- DWARFFormValue.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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#ifndef LLVM_DEBUGINFO_DWARFFORMVALUE_H
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#define LLVM_DEBUGINFO_DWARFFORMVALUE_H
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#include "llvm/Support/DataExtractor.h"
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namespace llvm {
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class DWARFCompileUnit;
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class raw_ostream;
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class DWARFFormValue {
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public:
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struct ValueType {
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ValueType() : data(NULL), IsDWOIndex(false) {
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uval = 0;
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}
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union {
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uint64_t uval;
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int64_t sval;
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const char* cstr;
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};
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const uint8_t* data;
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bool IsDWOIndex;
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};
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enum {
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eValueTypeInvalid = 0,
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eValueTypeUnsigned,
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eValueTypeSigned,
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eValueTypeCStr,
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eValueTypeBlock
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};
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private:
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uint16_t Form; // Form for this value.
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ValueType Value; // Contains all data for the form.
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public:
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DWARFFormValue(uint16_t form = 0) : Form(form) {}
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uint16_t getForm() const { return Form; }
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const ValueType& value() const { return Value; }
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void dump(raw_ostream &OS, const DWARFCompileUnit* cu) const;
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bool extractValue(DataExtractor data, uint32_t *offset_ptr,
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const DWARFCompileUnit *cu);
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bool isInlinedCStr() const {
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return Value.data != NULL && Value.data == (const uint8_t*)Value.cstr;
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}
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const uint8_t *BlockData() const;
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uint64_t getReference(const DWARFCompileUnit* cu) const;
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/// Resolve any compile unit specific references so that we don't need
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/// the compile unit at a later time in order to work with the form
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/// value.
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bool resolveCompileUnitReferences(const DWARFCompileUnit* cu);
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uint64_t getUnsigned() const { return Value.uval; }
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int64_t getSigned() const { return Value.sval; }
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const char *getAsCString(const DWARFCompileUnit *CU) const;
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uint64_t getAsAddress(const DWARFCompileUnit *CU) const;
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bool skipValue(DataExtractor debug_info_data, uint32_t *offset_ptr,
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const DWARFCompileUnit *cu) const;
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static bool skipValue(uint16_t form, DataExtractor debug_info_data,
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uint32_t *offset_ptr, const DWARFCompileUnit *cu);
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static bool isBlockForm(uint16_t form);
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static bool isDataForm(uint16_t form);
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static const uint8_t *getFixedFormSizes(uint8_t AddrSize, uint16_t Version);
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};
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}
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#endif
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