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Specified ReportError as noreturn friendly to old compilers.

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llvm-svn: 305405
This commit is contained in:
Galina Kistanova 2017-06-14 17:32:53 +00:00
parent c49b4d60a1
commit 47799b1106
1 changed files with 14 additions and 9 deletions
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23
lib/DebugInfo/DWARF/DWARFDebugFrame.cpp
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@ -514,6 +514,20 @@ static uint64_t readPointer(const DataExtractor &Data, uint32_t &Offset,
} }
} }
// This is a workaround for old compilers which do not allow
// noreturn attribute usage in lambdas. Once the support for those
// compilers are phased out, we can remove this and return back to
// a ReportError lambda: [StartOffset](const char *ErrorMsg).
#define ReportError(ErrorMsg) ReportErrorImpl(StartOffset,ErrorMsg)
static void LLVM_ATTRIBUTE_NORETURN
ReportErrorImpl(uint32_t StartOffset, const char *ErrorMsg) {
std::string Str;
raw_string_ostream OS(Str);
OS << format(ErrorMsg, StartOffset);
OS.flush();
report_fatal_error(Str);
}
void DWARFDebugFrame::parse(DataExtractor Data) { void DWARFDebugFrame::parse(DataExtractor Data) {
uint32_t Offset = 0; uint32_t Offset = 0;
DenseMap<uint32_t, CIE *> CIEs; DenseMap<uint32_t, CIE *> CIEs;
@ -521,14 +535,6 @@ void DWARFDebugFrame::parse(DataExtractor Data) {
while (Data.isValidOffset(Offset)) { while (Data.isValidOffset(Offset)) {
uint32_t StartOffset = Offset; uint32_t StartOffset = Offset;
auto ReportError = [StartOffset](const char *ErrorMsg) {
std::string Str;
raw_string_ostream OS(Str);
OS << format(ErrorMsg, StartOffset);
OS.flush();
report_fatal_error(Str);
};
bool IsDWARF64 = false; bool IsDWARF64 = false;
uint64_t Length = Data.getU32(&Offset); uint64_t Length = Data.getU32(&Offset);
uint64_t Id; uint64_t Id;
@ -585,7 +591,6 @@ void DWARFDebugFrame::parse(DataExtractor Data) {
switch (AugmentationString[i]) { switch (AugmentationString[i]) {
default: default:
ReportError("Unknown augmentation character in entry at %lx"); ReportError("Unknown augmentation character in entry at %lx");
llvm_unreachable("ReportError should not return.");
case 'L': case 'L':
LSDAPointerEncoding = Data.getU8(&Offset); LSDAPointerEncoding = Data.getU8(&Offset);
break; break;