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| author | Paul Robinson <paul.robinson@sony.com> | 2018-06-21 16:42:03 +0000 |
|---|---|---|
| committer | Paul Robinson <paul.robinson@sony.com> | 2018-06-21 16:42:03 +0000 |
| commit | 547adcaaac64d2f4802e194c38309ad4e48a158f (patch) | |
| tree | 9d05b878281420db788f42e5ee670a7ff01025bd /llvm/lib/MC/MCParser/AsmParser.cpp | |
| parent | ddfe69cc995d55ed45a46da18a81072c6effc9e1 (diff) | |
| download | bcm5719-llvm-547adcaaac64d2f4802e194c38309ad4e48a158f.tar.gz bcm5719-llvm-547adcaaac64d2f4802e194c38309ad4e48a158f.zip | |
[DWARF] Warn on and ignore ".file 0" for DWARF v4 and earlier.
This had been messing with the directory table for prior versions, and
also could induce a crash when generating asm output.
llvm-svn: 335254
Diffstat (limited to 'llvm/lib/MC/MCParser/AsmParser.cpp')
| -rw-r--r-- | llvm/lib/MC/MCParser/AsmParser.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp index 00418ac70ba..12c7ddee706 100644 --- a/llvm/lib/MC/MCParser/AsmParser.cpp +++ b/llvm/lib/MC/MCParser/AsmParser.cpp @@ -3362,9 +3362,11 @@ bool AsmParser::parseDirectiveFile(SMLoc DirectiveLoc) { memcpy(SourceBuf, SourceString.data(), SourceString.size()); Source = StringRef(SourceBuf, SourceString.size()); } - if (FileNumber == 0) + if (FileNumber == 0) { + if (Ctx.getDwarfVersion() < 5) + return Warning(DirectiveLoc, "file 0 not supported prior to DWARF-5"); getStreamer().emitDwarfFile0Directive(Directory, Filename, CKMem, Source); - else { + } else { Expected<unsigned> FileNumOrErr = getStreamer().tryEmitDwarfFileDirective( FileNumber, Directory, Filename, CKMem, Source); if (!FileNumOrErr) |
