Blacklist regexp errors silently lead to blacklist not working

[GoogleCodeExporter]

The blacklist in the AddressSanitizer pass constructs one big regular 
expression from the blacklist entries. If one of these list entries contains 
something illegal, then the whole regex silently fails and nothing is 
blacklisted. Also no error is emitted for this.

To test this, create a blacklist using:

fun:main
fun:foo??bar
fun:bar

The second line here is invalid (at least it seems to be in the C++ regular 
expression library that is used, as it stopped my blacklist from working. Using 
this blacklist won't have any effect, e.g. main will be instrumented.

Tested using LLVM/Clang/ASan SVN trunk revision 146212 on Linux.

Original issue reported on code.google.com by decoder...@googlemail.com on 13 Dec 2011 at 12:01

[GoogleCodeExporter]

r146503.

Original comment by konstant...@gmail.com on 13 Dec 2011 at 7:38

• Changed state: Fixed