http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56109



             Bug #: 56109

           Summary: Add light-weight ABI-compatible debug checks to

                    standard containers

    Classification: Unclassified

           Product: gcc

           Version: unknown

            Status: UNCONFIRMED

          Severity: enhancement

          Priority: P3

         Component: libstdc++

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: ppluzhni...@google.com





Google has implemented a series of patches which allows us to catch many STL

mis-use bugs cheaply and in ABI-compatible way:



http://gcc.gnu.org/ml/gcc-patches/2013-01/msg01186.html

http://gcc.gnu.org/ml/gcc-patches/2013-01/msg01074.html and more ...

(just look for __google_stl in google/integration branch).



Some of the bugs we catch this way are not visible to "standard" tools like

Valgrind and AddressSanitizer.



These bugs (and more) *are* visible to _GLIBCXX_DEBUG mode, but we've not been

able to use that mode due to source incompatibilities, and it has ABI

implications as well.



Please consider adding a light-weight ABI-compatible debug mode to trunk, once

it re-opens for stage 1.

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