Hi!
I wrote a plugin to use clang traversing AST. It used to work fine but
after I updated and built clang today It generated exception as
following:
0 clang 0x000000000247b4bd 1 clang 0x000000000247b2b0
2 libpthread.so.0 0x00007f352be90190
3 libAnnotate.so 0x00007f352af51c08
clang::RecursiveASTVisitor<minissf::Annotate>::TraverseTypeAliasDecl(clang
::TypeAliasDecl*)
+ 24
4 libAnnotate.so 0x00007f352af4e201
clang::RecursiveASTVisitor<minissf::Annotate>::TraverseDeclContextHelper(c
lang::DeclContext*)
+ 65
5 libAnnotate.so 0x00007f352af4e835
clang::RecursiveASTVisitor<minissf::Annotate>::TraverseStaticAssertDecl(cl
ang::StaticAssertDecl*)
+ 85
6 clang 0x00000000012bf31a clang::ParseAST(clang::Sema&, bool)
+
667
7 clang 0x000000000101bad3
clang::ASTFrontendAction::ExecuteAction() + 263
8 clang 0x000000000101b724 clang::FrontendAction::Execute() +
326
9 clang 0x0000000001002ae5
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 751
10 clang 0x0000000000faa14f
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 908
11 clang 0x0000000000f9bde7 cc1_main(char const**, char const**,
char const*, void*) + 982 12 clang 0x0000000000fa589d main +
499
13 libc.so.6 0x00007f352b180abd __libc_start_main + 253
14 clang 0x0000000000f9b489
Stack dump:
0. Program arguments: clang -cc1 -I../.. -load
../../../xlate/Annotate/libAnnotate.so -plugin minissf-annotate chevt.cc
1. <eof> parser at end of file
Segmentation fault
I also tried to run BoostConAction example, it generate same error. It
seems to me that TraverseDecl function does not work after updating.
Anyone knows
how to fix it? Thank you very much for your help. Hao Jiang
C++0x alias declarations are a very new feature in clang, so it's possible
that there are major bugs with them. However, I was not able to reproduce
this failure by running 'clang++ -cc1 -std=c++0x -boostcon
some-file-with-aliases.cpp', and I note that you do not have -std=c++0x in
your compilation command line. Therefore I suspect that your code does not
in fact contain a TypeAliasDecl, and certainly not one contained within a
StaticAssertDecl.
Is it possible that you have not rebuilt some parts of clang or llvm (or
maybe your plugin) after your most recent svn update? Does a clean build
help? If not, can you provide instructions to reproduce this issue? A
preprocessed source file and a compilation command line using
BoostConAction would be ideal.
Thanks,
Richard