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https://github.com/c64scene-ar/llvm-6502.git
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llvm-symbolizer: add DATA command that allows to symbolize global variables.
Example: >DATA bin/clang 0x26e8e40 <llvm::SparcSubTypeKV <40799808 416 The last line is address and size of the object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172180 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -55,6 +55,8 @@ static cl::opt<bool>
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Demangle("demangle", cl::init(true),
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Demangle("demangle", cl::init(true),
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cl::desc("Demangle function names"));
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cl::desc("Demangle function names"));
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static const std::string kSymbolizerBadString = "??";
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static StringRef ToolInvocationPath;
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static StringRef ToolInvocationPath;
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static bool error(error_code ec) {
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static bool error(error_code ec) {
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@ -96,7 +98,9 @@ class ModuleInfo {
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// Override function name from symbol table if necessary.
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// Override function name from symbol table if necessary.
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if (PrintFunctions && UseSymbolTable) {
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if (PrintFunctions && UseSymbolTable) {
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std::string Function;
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std::string Function;
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if (getFunctionNameFromSymbolTable(ModuleOffset, Function)) {
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uint64_t Start, Size;
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if (getNameFromSymbolTable(SymbolRef::ST_Function,
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ModuleOffset, Function, Start, Size)) {
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patchFunctionNameInDILineInfo(Function, LineInfo);
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patchFunctionNameInDILineInfo(Function, LineInfo);
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}
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}
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}
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}
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@ -121,7 +125,9 @@ class ModuleInfo {
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DILineInfo LineInfo = InlinedContext.getFrame(i);
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DILineInfo LineInfo = InlinedContext.getFrame(i);
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if (i == n - 1) {
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if (i == n - 1) {
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std::string Function;
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std::string Function;
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if (getFunctionNameFromSymbolTable(ModuleOffset, Function)) {
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uint64_t Start, Size;
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if (getNameFromSymbolTable(SymbolRef::ST_Function,
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ModuleOffset, Function, Start, Size)) {
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patchFunctionNameInDILineInfo(Function, LineInfo);
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patchFunctionNameInDILineInfo(Function, LineInfo);
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}
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}
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}
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}
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@ -132,9 +138,18 @@ class ModuleInfo {
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return InlinedContext;
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return InlinedContext;
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}
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}
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bool symbolizeData(uint64_t ModuleOffset, std::string &Name,
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uint64_t &Start, uint64_t &Size) const {
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return getNameFromSymbolTable(SymbolRef::ST_Data,
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ModuleOffset, Name, Start, Size);
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}
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private:
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private:
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bool getFunctionNameFromSymbolTable(uint64_t Address,
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bool getNameFromSymbolTable(SymbolRef::Type Type,
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std::string &FunctionName) const {
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uint64_t Address,
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std::string &Name,
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uint64_t &Addr,
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uint64_t &Size) const {
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assert(Module);
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assert(Module);
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error_code ec;
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error_code ec;
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for (symbol_iterator si = Module->begin_symbols(),
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for (symbol_iterator si = Module->begin_symbols(),
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@ -152,10 +167,12 @@ class ModuleInfo {
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// FIXME: If a function has alias, there are two entries in symbol table
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// FIXME: If a function has alias, there are two entries in symbol table
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// with same address size. Make sure we choose the correct one.
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// with same address size. Make sure we choose the correct one.
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if (SymbolAddress <= Address && Address < SymbolAddress + SymbolSize &&
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if (SymbolAddress <= Address && Address < SymbolAddress + SymbolSize &&
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SymbolType == SymbolRef::ST_Function) {
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SymbolType == Type) {
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StringRef Name;
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StringRef SymbolName;
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if (error(si->getName(Name))) continue;
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if (error(si->getName(SymbolName))) continue;
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FunctionName = Name.str();
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Name = SymbolName.str();
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Addr = SymbolAddress;
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Size = SymbolSize;
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return true;
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return true;
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}
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}
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}
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}
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@ -163,6 +180,25 @@ class ModuleInfo {
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}
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}
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};
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};
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#if !defined(_MSC_VER)
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// Assume that __cxa_demangle is provided by libcxxabi (except for Windows).
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extern "C" char *__cxa_demangle(const char *mangled_name, char *output_buffer,
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size_t *length, int *status);
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#endif
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void DemangleName(std::string &Name) {
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#if !defined(_MSC_VER)
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if (!Demangle)
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return;
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int status = 0;
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char *DemangledName = __cxa_demangle(Name.c_str(), 0, 0, &status);
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if (status != 0)
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return;
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Name = DemangledName;
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free(DemangledName);
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#endif
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}
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typedef std::map<std::string, ModuleInfo*> ModuleMapTy;
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typedef std::map<std::string, ModuleInfo*> ModuleMapTy;
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typedef ModuleMapTy::iterator ModuleMapIter;
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typedef ModuleMapTy::iterator ModuleMapIter;
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} // namespace
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} // namespace
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@ -226,32 +262,15 @@ static ModuleInfo *getOrCreateModuleInfo(const std::string &ModuleName) {
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return Info;
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return Info;
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}
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}
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#if !defined(_MSC_VER)
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// Assume that __cxa_demangle is provided by libcxxabi (except for Windows).
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extern "C" char *__cxa_demangle(const char *mangled_name, char *output_buffer,
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size_t *length, int *status);
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#endif
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static void printDILineInfo(DILineInfo LineInfo) {
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static void printDILineInfo(DILineInfo LineInfo) {
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// By default, DILineInfo contains "<invalid>" for function/filename it
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// By default, DILineInfo contains "<invalid>" for function/filename it
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// cannot fetch. We replace it to "??" to make our output closer to addr2line.
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// cannot fetch. We replace it to "??" to make our output closer to addr2line.
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static const std::string kDILineInfoBadString = "<invalid>";
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static const std::string kDILineInfoBadString = "<invalid>";
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static const std::string kSymbolizerBadString = "??";
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if (PrintFunctions) {
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if (PrintFunctions) {
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std::string FunctionName = LineInfo.getFunctionName();
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std::string FunctionName = LineInfo.getFunctionName();
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if (FunctionName == kDILineInfoBadString)
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if (FunctionName == kDILineInfoBadString)
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FunctionName = kSymbolizerBadString;
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FunctionName = kSymbolizerBadString;
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#if !defined(_MSC_VER)
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DemangleName(FunctionName);
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if (Demangle) {
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int status = 0;
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char *DemangledName = __cxa_demangle(
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FunctionName.c_str(), 0, 0, &status);
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if (status == 0) {
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FunctionName = DemangledName;
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free(DemangledName);
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}
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}
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#endif
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outs() << FunctionName << "\n";
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outs() << FunctionName << "\n";
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}
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}
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std::string Filename = LineInfo.getFileName();
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std::string Filename = LineInfo.getFileName();
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@ -263,7 +282,7 @@ static void printDILineInfo(DILineInfo LineInfo) {
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"\n";
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"\n";
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}
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}
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static void symbolize(std::string ModuleName, std::string ModuleOffsetStr) {
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static void symbolizeCode(std::string ModuleName, std::string ModuleOffsetStr) {
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ModuleInfo *Info = getOrCreateModuleInfo(ModuleName);
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ModuleInfo *Info = getOrCreateModuleInfo(ModuleName);
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uint64_t Offset = 0;
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uint64_t Offset = 0;
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if (Info == 0 ||
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if (Info == 0 ||
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@ -286,17 +305,48 @@ static void symbolize(std::string ModuleName, std::string ModuleOffsetStr) {
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outs().flush();
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outs().flush();
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}
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}
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static bool parseModuleNameAndOffset(std::string &ModuleName,
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static void symbolizeData(std::string ModuleName, std::string ModuleOffsetStr) {
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std::string Name = kSymbolizerBadString;
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uint64_t Start = 0;
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uint64_t Size = 0;
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uint64_t Offset = 0;
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if (UseSymbolTable) {
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ModuleInfo *Info = getOrCreateModuleInfo(ModuleName);
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if (Info && !StringRef(ModuleOffsetStr).getAsInteger(0, Offset)) {
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if (Info->symbolizeData(Offset, Name, Start, Size))
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DemangleName(Name);
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}
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}
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outs() << Name << "\n" << Start << " " << Size << "\n\n";
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outs().flush();
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}
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static bool parseCommand(bool &IsData,
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std::string &ModuleName,
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std::string &ModuleOffsetStr) {
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std::string &ModuleOffsetStr) {
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static const int kMaxInputStringLength = 1024;
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const char *kDataCmd = "DATA ";
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static const char kDelimiters[] = " \n";
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const char *kCodeCmd = "CODE ";
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const int kMaxInputStringLength = 1024;
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const char kDelimiters[] = " \n";
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char InputString[kMaxInputStringLength];
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char InputString[kMaxInputStringLength];
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if (!fgets(InputString, sizeof(InputString), stdin))
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if (!fgets(InputString, sizeof(InputString), stdin))
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return false;
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return false;
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IsData = false;
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ModuleName = "";
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ModuleName = "";
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ModuleOffsetStr = "";
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ModuleOffsetStr = "";
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char *pos = InputString;
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if (strncmp(pos, kDataCmd, strlen(kDataCmd)) == 0) {
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IsData = true;
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pos += strlen(kDataCmd);
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} else if (strncmp(pos, kCodeCmd, strlen(kCodeCmd)) == 0) {
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IsData = false;
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pos += strlen(kCodeCmd);
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} else {
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// If no cmd, assume it's CODE.
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IsData = false;
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}
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// FIXME: Handle case when filename is given in quotes.
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// FIXME: Handle case when filename is given in quotes.
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if (char *FilePath = strtok(InputString, kDelimiters)) {
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if (char *FilePath = strtok(pos, kDelimiters)) {
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ModuleName = FilePath;
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ModuleName = FilePath;
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if (char *OffsetStr = strtok((char*)0, kDelimiters))
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if (char *OffsetStr = strtok((char*)0, kDelimiters))
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ModuleOffsetStr = OffsetStr;
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ModuleOffsetStr = OffsetStr;
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@ -313,10 +363,14 @@ int main(int argc, char **argv) {
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cl::ParseCommandLineOptions(argc, argv, "llvm symbolizer for compiler-rt\n");
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cl::ParseCommandLineOptions(argc, argv, "llvm symbolizer for compiler-rt\n");
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ToolInvocationPath = argv[0];
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ToolInvocationPath = argv[0];
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bool IsData = false;
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std::string ModuleName;
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std::string ModuleName;
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std::string ModuleOffsetStr;
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std::string ModuleOffsetStr;
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while (parseModuleNameAndOffset(ModuleName, ModuleOffsetStr)) {
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while (parseCommand(IsData, ModuleName, ModuleOffsetStr)) {
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symbolize(ModuleName, ModuleOffsetStr);
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if (IsData)
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symbolizeData(ModuleName, ModuleOffsetStr);
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else
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symbolizeCode(ModuleName, ModuleOffsetStr);
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}
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}
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return 0;
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return 0;
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}
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}
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