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
127 lines
4.0 KiB
C++
127 lines
4.0 KiB
C++
//===-- LLVMSymbolize.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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// Header for LLVM symbolization library.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYMBOLIZE_H
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#define LLVM_SYMBOLIZE_H
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/DebugInfo/DIContext.h"
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#include "llvm/Object/MachOUniversal.h"
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#include "llvm/Object/ObjectFile.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include <map>
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#include <string>
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namespace llvm {
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using namespace object;
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namespace symbolize {
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class ModuleInfo;
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class LLVMSymbolizer {
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public:
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struct Options {
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bool UseSymbolTable : 1;
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bool PrintFunctions : 1;
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bool PrintInlining : 1;
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bool Demangle : 1;
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std::string DefaultArch;
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Options(bool UseSymbolTable = true, bool PrintFunctions = true,
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bool PrintInlining = true, bool Demangle = true,
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std::string DefaultArch = "")
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: UseSymbolTable(UseSymbolTable), PrintFunctions(PrintFunctions),
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PrintInlining(PrintInlining), Demangle(Demangle),
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DefaultArch(DefaultArch) {
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}
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};
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LLVMSymbolizer(const Options &Opts = Options()) : Opts(Opts) {}
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~LLVMSymbolizer() {
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flush();
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}
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// Returns the result of symbolization for module name/offset as
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// a string (possibly containing newlines).
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std::string
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symbolizeCode(const std::string &ModuleName, uint64_t ModuleOffset);
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std::string
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symbolizeData(const std::string &ModuleName, uint64_t ModuleOffset);
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void flush();
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static std::string DemangleName(const std::string &Name);
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private:
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typedef std::pair<Binary*, Binary*> BinaryPair;
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ModuleInfo *getOrCreateModuleInfo(const std::string &ModuleName);
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/// \brief Returns pair of pointers to binary and debug binary.
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BinaryPair getOrCreateBinary(const std::string &Path);
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/// \brief Returns a parsed object file for a given architecture in a
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/// universal binary (or the binary itself if it is an object file).
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ObjectFile *getObjectFileFromBinary(Binary *Bin, const std::string &ArchName);
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std::string printDILineInfo(DILineInfo LineInfo) const;
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static std::string DemangleGlobalName(const std::string &Name);
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// Owns all the parsed binaries and object files.
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SmallVector<Binary*, 4> ParsedBinariesAndObjects;
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// Owns module info objects.
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typedef std::map<std::string, ModuleInfo *> ModuleMapTy;
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ModuleMapTy Modules;
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typedef std::map<std::string, BinaryPair> BinaryMapTy;
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BinaryMapTy BinaryForPath;
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typedef std::map<std::pair<MachOUniversalBinary *, std::string>, ObjectFile *>
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ObjectFileForArchMapTy;
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ObjectFileForArchMapTy ObjectFileForArch;
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Options Opts;
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static const char kBadString[];
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};
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class ModuleInfo {
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public:
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ModuleInfo(ObjectFile *Obj, DIContext *DICtx);
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DILineInfo symbolizeCode(uint64_t ModuleOffset,
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const LLVMSymbolizer::Options &Opts) const;
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DIInliningInfo symbolizeInlinedCode(
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uint64_t ModuleOffset, const LLVMSymbolizer::Options &Opts) const;
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bool symbolizeData(uint64_t ModuleOffset, std::string &Name, uint64_t &Start,
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uint64_t &Size) const;
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private:
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bool getNameFromSymbolTable(SymbolRef::Type Type, uint64_t Address,
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std::string &Name, uint64_t &Addr,
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uint64_t &Size) const;
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ObjectFile *Module;
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OwningPtr<DIContext> DebugInfoContext;
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struct SymbolDesc {
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uint64_t Addr;
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// If size is 0, assume that symbol occupies the whole memory range up to
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// the following symbol.
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uint64_t Size;
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friend bool operator<(const SymbolDesc &s1, const SymbolDesc &s2) {
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return s1.Addr < s2.Addr;
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}
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};
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typedef std::map<SymbolDesc, StringRef> SymbolMapTy;
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SymbolMapTy Functions;
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SymbolMapTy Objects;
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};
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} // namespace symbolize
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} // namespace llvm
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#endif // LLVM_SYMBOLIZE_H
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