[cfe-dev] Crash on tgmath parsing with release build

[Jean-Daniel Dupas]

Look like a rm -rf llvm, and a clean checkout rebuild solve the issue.


Le 24 sept. 2009 à 11:32, Jean-Daniel Dupas a écrit :

> When parsing tgmath.h using a fresh release build of clang (make  
> ENABLE_OPTIMIZED=1 DISABLE_ASSERTIONS=1), I got this:
> This crash does not occur with a debug build thought.
>
> echo "#include <tgmath.h>" > math.c
> clang -v -E math.c
>
> clang version 1.1 (http://llvm.org/svn/llvm-project/cfe/trunk 82688)
> Target: x86_64-apple-darwin10
> Thread model: posix
>  "/Volumes/MacPro/Projects/OpenSource/llvm/Release-Asserts/bin/clang- 
> cc" -triple x86_64-apple-darwin10 -E -disable-free -main-file-name  
> math.c --relocation-model pic -pic-level=1 --disable-fp-elim -- 
> unwind-tables=1 --mcpu=core2 --fmath-errno=0 -v -mmacosx-version- 
> min=10.6.0 -fdiagnostics-show-option -o - -x c math.c
> clang-cc version 1.1 based upon llvm 2.7svn hosted on x86_64-apple- 
> darwin10
> #include "..." search starts here:
> #include <...> search starts here:
>  /Volumes/MacPro/Projects/OpenSource/llvm/Release-Asserts/lib/clang/ 
> 1.1/include
>  /usr/local/include
>  /usr/include
>  /System/Library/Frameworks (framework directory)
>  /Library/Frameworks (framework directory)
> End of search list.
> 0   clang-cc          0x000000010099b2a2 PrintStackTrace(void*) + 34
> 1   clang-cc          0x000000010099b7f9 SignalHandler(int) + 617
> 2   libSystem.B.dylib 0x00007fff817780aa _sigtramp + 26
> 3   libstdc++.6.dylib 0x00007fff80eb8f05 operator new(unsigned long)  
> + 97
> 4   clang-cc          0x000000010037a81f  
> clang::TokenLexer::ExpandFunctionArguments() + 767
> 5   clang-cc          0x0000000100379b70 clang::TokenLexer::Init 
> (clang::Token&, clang::SourceLocation, clang::MacroArgs*) + 288
> 6   clang-cc          0x0000000100370916  
> clang::Preprocessor::EnterMacro(clang::Token&,  
> clang::SourceLocation, clang::MacroArgs*) + 454
> 7   clang-cc          0x0000000100372439  
> clang::Preprocessor::HandleMacroExpandedIdentifier(clang::Token&,  
> clang::MacroInfo*) + 745
> 8   clang-cc          0x0000000100376923  
> clang::Preprocessor::HandleIdentifier(clang::Token&) + 323
> 9   clang-cc          0x000000010035f80f clang::Lexer::LexIdentifier 
> (clang::Token&, char const*) + 223
> 10  clang-cc          0x000000010035fec8  
> clang::Lexer::LexTokenInternal(clang::Token&) + 1192
> 11  clang-cc          0x0000000100022c7e clang::Preprocessor::Lex 
> (clang::Token&) + 78
> 12  clang-cc          0x00000001000833bc  
> clang::DoPrintPreprocessedInput(clang::Preprocessor&,  
> llvm::raw_ostream*, bool, bool, bool, bool) + 1756
> 13  clang-cc          0x000000010001d98e main + 13918
> 14  clang-cc          0x0000000100018364 start + 52
> Stack dump:
> 0.	Program arguments: /Volumes/MacPro/Projects/OpenSource/llvm/ 
> Release-Asserts/bin/clang-cc -triple x86_64-apple-darwin10 -E - 
> disable-free -main-file-name math.c --relocation-model pic -pic- 
> level=1 --disable-fp-elim --unwind-tables=1 --mcpu=core2 --fmath- 
> errno=0 -v -mmacosx-version-min=10.6.0 -fdiagnostics-show-option -o  
> - -x c math.c
> clang: error: preprocessor command failed due to signal 11 (use -v  
> to see invocation)
>
> Regards
>
> -- Jean-Daniel
>
>
>
>
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-- Jean-Daniel




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