ExecutionEngine/RuntimeDyld/RuntimeDyldChecker.cpp

46     std::tie(LHSResult, RemainingExpr) =
56     std::tie(RHSResult, RemainingExpr) =
101     EvalResult(std::string ErrorMsg)
102         : Value(0), ErrorMsg(std::move(ErrorMsg)) {}
105     const std::string &getErrorMsg() const { return ErrorMsg; }
109     std::string ErrorMsg;
118       std::tie(Token, Remaining) = parseSymbol(Expr);
120       std::tie(Token, Remaining) = parseNumberString(Expr);
132     std::string ErrorMsg("Encountered unexpected token '");
143     return EvalResult(std::move(ErrorMsg));
153   std::pair<BinOpToken, StringRef> parseBinOpToken(StringRef Expr) const {
155       return std::make_pair(BinOpToken::Invalid, "");
159       return std::make_pair(BinOpToken::ShiftLeft, Expr.substr(2).ltrim());
161       return std::make_pair(BinOpToken::ShiftRight, Expr.substr(2).ltrim());
167       return std::make_pair(BinOpToken::Invalid, Expr);
182     return std::make_pair(Op, Expr.substr(1).ltrim());
207   std::pair<StringRef, StringRef> parseSymbol(StringRef Expr) const {
212     return std::make_pair(Expr.substr(0, FirstNonSymbol),
222   std::pair<EvalResult, StringRef> evalDecodeOperand(StringRef Expr) const {
224       return std::make_pair(unexpectedToken(Expr, Expr, "expected '('"), "");
227     std::tie(Symbol, RemainingExpr) = parseSymbol(RemainingExpr);
230       return std::make_pair(
235       return std::make_pair(
240     std::tie(OpIdxExpr, RemainingExpr) = evalNumberExpr(RemainingExpr);
242       return std::make_pair(OpIdxExpr, "");
245       return std::make_pair(
252       return std::make_pair(
258       std::string ErrMsg;
266       return std::make_pair(EvalResult(ErrMsgStream.str()), "");
271       std::string ErrMsg;
277       return std::make_pair(EvalResult(ErrMsgStream.str()), "");
280     return std::make_pair(EvalResult(Op.getImm()), RemainingExpr);
289   std::pair<EvalResult, StringRef> evalNextPC(StringRef Expr,
292       return std::make_pair(unexpectedToken(Expr, Expr, "expected '('"), "");
295     std::tie(Symbol, RemainingExpr) = parseSymbol(RemainingExpr);
298       return std::make_pair(
303       return std::make_pair(
310       return std::make_pair(
319     return std::make_pair(EvalResult(NextPC), RemainingExpr);
327   std::pair<EvalResult, StringRef>
330       return std::make_pair(unexpectedToken(Expr, Expr, "expected '('"), "");
341       return std::make_pair(
346     std::tie(Symbol, RemainingExpr) = parseSymbol(RemainingExpr);
349       return std::make_pair(
354     std::string ErrorMsg = "";
355     std::tie(StubAddr, ErrorMsg) = Checker.getStubOrGOTAddrFor(
359       return std::make_pair(EvalResult(ErrorMsg), "");
361     return std::make_pair(EvalResult(StubAddr), RemainingExpr);
364   std::pair<EvalResult, StringRef> evalSectionAddr(StringRef Expr,
367       return std::make_pair(unexpectedToken(Expr, Expr, "expected '('"), "");
378       return std::make_pair(
383     std::tie(SectionName, RemainingExpr) = parseSymbol(RemainingExpr);
386       return std::make_pair(
391     std::string ErrorMsg = "";
392     std::tie(StubAddr, ErrorMsg) = Checker.getSectionAddr(
396       return std::make_pair(EvalResult(ErrorMsg), "");
398     return std::make_pair(EvalResult(StubAddr), RemainingExpr);
404   std::pair<EvalResult, StringRef> evalIdentifierExpr(StringRef Expr,
408     std::tie(Symbol, RemainingExpr) = parseSymbol(Expr);
423       std::string ErrMsg("No known address for symbol '");
430       return std::make_pair(EvalResult(ErrMsg), "");
440     return std::make_pair(EvalResult(Value), RemainingExpr);
445   std::pair<StringRef, StringRef> parseNumberString(StringRef Expr) const {
456     return std::make_pair(Expr.substr(0, FirstNonDigit),
463   std::pair<EvalResult, StringRef> evalNumberExpr(StringRef Expr) const {
466     std::tie(ValueStr, RemainingExpr) = parseNumberString(Expr);
469       return std::make_pair(
473     return std::make_pair(EvalResult(Value), RemainingExpr);
479   std::pair<EvalResult, StringRef> evalParensExpr(StringRef Expr,
484     std::tie(SubExprResult, RemainingExpr) =
487       return std::make_pair(SubExprResult, "");
489       return std::make_pair(
492     return std::make_pair(SubExprResult, RemainingExpr);
499   std::pair<EvalResult, StringRef> evalLoadExpr(StringRef Expr) const {
505       return std::make_pair(EvalResult("Expected '{' following '*'."), "");
508     std::tie(ReadSizeExpr, RemainingExpr) = evalNumberExpr(RemainingExpr);
510       return std::make_pair(ReadSizeExpr, RemainingExpr);
513       return std::make_pair(EvalResult("Invalid size for dereference."), "");
515       return std::make_pair(EvalResult("Missing '}' for dereference."), "");
521     std::tie(LoadAddrExprResult, RemainingExpr) =
525       return std::make_pair(LoadAddrExprResult, "");
532       return std::make_pair(0, RemainingExpr);
534     return std::make_pair(
546   std::pair<EvalResult, StringRef> evalSimpleExpr(StringRef Expr,
552       return std::make_pair(EvalResult("Unexpected end of expression"), "");
555       std::tie(SubExprResult, RemainingExpr) = evalParensExpr(Expr, PCtx);
557       std::tie(SubExprResult, RemainingExpr) = evalLoadExpr(Expr);
559       std::tie(SubExprResult, RemainingExpr) = evalIdentifierExpr(Expr, PCtx);
561       std::tie(SubExprResult, RemainingExpr) = evalNumberExpr(Expr);
563       return std::make_pair(
568       return std::make_pair(SubExprResult, RemainingExpr);
572       std::tie(SubExprResult, RemainingExpr) =
573           evalSliceExpr(std::make_pair(SubExprResult, RemainingExpr));
575     return std::make_pair(SubExprResult, RemainingExpr);
585   std::pair<EvalResult, StringRef>
586   evalSliceExpr(const std::pair<EvalResult, StringRef> &Ctx) const {
589     std::tie(SubExprResult, RemainingExpr) = Ctx;
595     std::tie(HighBitExpr, RemainingExpr) = evalNumberExpr(RemainingExpr);
598       return std::make_pair(HighBitExpr, RemainingExpr);
601       return std::make_pair(
606     std::tie(LowBitExpr, RemainingExpr) = evalNumberExpr(RemainingExpr);
609       return std::make_pair(LowBitExpr, RemainingExpr);
612       return std::make_pair(
620     return std::make_pair(EvalResult(SlicedValue), RemainingExpr);
629   std::pair<EvalResult, StringRef>
630   evalComplexExpr(const std::pair<EvalResult, StringRef> &LHSAndRemaining,
634     std::tie(LHSResult, RemainingExpr) = LHSAndRemaining;
639       return std::make_pair(LHSResult, RemainingExpr);
643     std::tie(BinOp, RemainingExpr) = parseBinOpToken(RemainingExpr);
647       return std::make_pair(LHSResult, RemainingExpr);
651     std::tie(RHSResult, RemainingExpr) = evalSimpleExpr(RemainingExpr, PCtx);
655       return std::make_pair(RHSResult, RemainingExpr);
661     return evalComplexExpr(std::make_pair(ThisResult, RemainingExpr), PCtx);
683     : IsSymbolValid(std::move(IsSymbolValid)),
684       GetSymbolInfo(std::move(GetSymbolInfo)),
685       GetSectionInfo(std::move(GetSectionInfo)),
686       GetStubInfo(std::move(GetStubInfo)), GetGOTInfo(std::move(GetGOTInfo)),
710   while (LineStart != MemBuf->getBufferEnd() && std::isspace(*LineStart))
727     while (LineStart != MemBuf->getBufferEnd() && std::isspace(*LineStart))
789 std::pair<uint64_t, std::string> RuntimeDyldCheckerImpl::getSectionAddr(
794     std::string ErrMsg;
800     return std::make_pair(0, std::move(ErrMsg));
816   return std::make_pair(Addr, "");
819 std::pair<uint64_t, std::string> RuntimeDyldCheckerImpl::getStubOrGOTAddrFor(
827     std::string ErrMsg;
833     return std::make_pair((uint64_t)0, std::move(ErrMsg));
840       return std::make_pair((uint64_t)0, "Detected zero-filled stub/GOT entry");
845   return std::make_pair(Addr, "");
854     : Impl(::std::make_unique<RuntimeDyldCheckerImpl>(
855           std::move(IsSymbolValid), std::move(GetSymbolInfo),
856           std::move(GetSectionInfo), std::move(GetStubInfo),
857           std::move(GetGOTInfo), Endianness, Disassembler, InstPrinter,
871 std::pair<uint64_t, std::string>