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https://github.com/RPCS3/llvm-mirror.git
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9ff867f98c
Removed some unused headers, replaced some headers with forward class declarations. Found using simple scripts like this one: clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap' Patch by Eugene Kosov <claprix@yandex.ru> Differential Revision: http://reviews.llvm.org/D19219 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 266595
100 lines
2.9 KiB
C++
100 lines
2.9 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/ADT/Optional.h"
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#include "llvm/Support/DataExtractor.h"
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namespace llvm {
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template <typename T> class ArrayRef;
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class DWARFUnit;
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class raw_ostream;
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class DWARFFormValue {
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public:
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enum FormClass {
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FC_Unknown,
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FC_Address,
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FC_Block,
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FC_Constant,
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FC_String,
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FC_Flag,
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FC_Reference,
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FC_Indirect,
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FC_SectionOffset,
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FC_Exprloc
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};
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private:
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struct ValueType {
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ValueType() : data(nullptr) {
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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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};
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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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bool isFormClass(FormClass FC) const;
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void dump(raw_ostream &OS, const DWARFUnit *U) const;
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/// \brief extracts a value in data at offset *offset_ptr.
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///
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/// The passed DWARFUnit is allowed to be nullptr, in which
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/// case no relocation processing will be performed and some
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/// kind of forms that depend on Unit information are disallowed.
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/// \returns whether the extraction succeeded.
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bool extractValue(DataExtractor data, uint32_t *offset_ptr,
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const DWARFUnit *u);
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bool isInlinedCStr() const {
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return Value.data != nullptr && Value.data == (const uint8_t*)Value.cstr;
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}
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/// getAsFoo functions below return the extracted value as Foo if only
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/// DWARFFormValue has form class is suitable for representing Foo.
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Optional<uint64_t> getAsReference(const DWARFUnit *U) const;
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Optional<uint64_t> getAsUnsignedConstant() const;
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Optional<int64_t> getAsSignedConstant() const;
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Optional<const char *> getAsCString(const DWARFUnit *U) const;
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Optional<uint64_t> getAsAddress(const DWARFUnit *U) const;
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Optional<uint64_t> getAsSectionOffset() const;
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Optional<ArrayRef<uint8_t>> getAsBlock() const;
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bool skipValue(DataExtractor debug_info_data, uint32_t *offset_ptr,
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const DWARFUnit *u) const;
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static bool skipValue(uint16_t form, DataExtractor debug_info_data,
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uint32_t *offset_ptr, const DWARFUnit *u);
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static bool skipValue(uint16_t form, DataExtractor debug_info_data,
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uint32_t *offset_ptr, uint16_t Version,
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uint8_t AddrSize);
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static ArrayRef<uint8_t> getFixedFormSizes(uint8_t AddrSize,
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uint16_t Version);
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private:
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void dumpString(raw_ostream &OS, const DWARFUnit *U) const;
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};
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}
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#endif
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