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f785676f2a
all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
70 lines
2 KiB
C++
70 lines
2 KiB
C++
//===-- DWARFDebugArangeSet.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_DWARFDEBUGARANGESET_H
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#define LLVM_DEBUGINFO_DWARFDEBUGARANGESET_H
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#include "llvm/Support/DataExtractor.h"
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#include <vector>
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namespace llvm {
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class raw_ostream;
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class DWARFDebugArangeSet {
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public:
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struct Header {
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// The total length of the entries for that set, not including the length
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// field itself.
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uint32_t Length;
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// The offset from the beginning of the .debug_info section of the
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// compilation unit entry referenced by the table.
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uint32_t CuOffset;
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// The DWARF version number.
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uint16_t Version;
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// The size in bytes of an address on the target architecture. For segmented
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// addressing, this is the size of the offset portion of the address.
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uint8_t AddrSize;
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// The size in bytes of a segment descriptor on the target architecture.
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// If the target system uses a flat address space, this value is 0.
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uint8_t SegSize;
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};
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struct Descriptor {
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uint64_t Address;
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uint64_t Length;
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uint64_t getEndAddress() const { return Address + Length; }
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};
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private:
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typedef std::vector<Descriptor> DescriptorColl;
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typedef DescriptorColl::const_iterator DescriptorConstIter;
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uint32_t Offset;
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Header HeaderData;
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DescriptorColl ArangeDescriptors;
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public:
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DWARFDebugArangeSet() { clear(); }
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void clear();
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bool extract(DataExtractor data, uint32_t *offset_ptr);
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void dump(raw_ostream &OS) const;
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uint32_t getCompileUnitDIEOffset() const { return HeaderData.CuOffset; }
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uint32_t getNumDescriptors() const { return ArangeDescriptors.size(); }
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const Descriptor *getDescriptor(uint32_t i) const {
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if (i < ArangeDescriptors.size())
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return &ArangeDescriptors[i];
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return NULL;
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}
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};
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}
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#endif
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