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https://issues.apache.org/jira/browse/PROTON-2371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17318330#comment-17318330
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Andrew Stitcher commented on PROTON-2371:
-----------------------------------------
This would doubtless also be an issue with FreeBSD except that the ASAN build
there doesn't work.
> C++ test failures on MacOS with ASAN due to unexported symbols being hidden
> ----------------------------------------------------------------------------
>
> Key: PROTON-2371
> URL: https://issues.apache.org/jira/browse/PROTON-2371
> Project: Qpid Proton
> Issue Type: Bug
> Components: proton-c
> Affects Versions: proton-c-0.34.0
> Environment: macOSX 10.15, AppleClang 12
> Reporter: Andrew Stitcher
> Priority: Major
>
> For example:
> {noformat}
> 13: ../cpp/src/session.cpp:71:21: runtime error: member call on address
> 0x7ffee55639e0 which does not point to an object of type
> 'proton::io::link_namer'
> 13: 0x7ffee55639e0: note: object is of type '(anonymous namespace)::namer'
> 13: ff ff 00 00 f0 3d 76 0a 01 00 00 00 78 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00 00 00 00 00 00
> 13: ^~~~~~~~~~~~~~~~~~~~~~~
> 13: vptr for '(anonymous namespace)::namer'
> 13: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
> ../cpp/src/session.cpp:71:21 in
> {noformat}
> or more complex:
>
> {noformat}
> 19:
> /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/functional:1808:30:
> runtime error: member call on address 0x60400000d6d0 which does not point to
> an object of type 'std::__1::__function::__base<void ()>'
> 19: 0x60400000d6d0: note: object is of type
> 'std::__1::__function::__func<std::__1::__bind<void ((anonymous
> namespace)::hang_tester::*)(proton::container*), (anonymous
> namespace)::hang_tester*, proton::container*>,
> std::__1::allocator<std::__1::__bind<void ((anonymous
> namespace)::hang_tester::*)(proton::container*), (anonymous
> namespace)::hang_tester*, proton::container*> >, void ()>'
> 19: 1d 00 80 0b b0 f5 43 0e 01 00 00 00 e0 c2 40 0e 01 00 00 00 00 00 00
> 00 00 00 00 00 40 98 84 e1
> 19: ^~~~~~~~~~~~~~~~~~~~~~~
> 19: vptr for
> 'std::__1::__function::__func<std::__1::__bind<void ((anonymous
> namespace)::hang_tester::*)(proton::container*), (anonymous
> namespace)::hang_tester*, proton::container*>,
> std::__1::allocator<std::__1::__bind<void ((anonymous
> namespace)::hang_tester::*)(proton::container*), (anonymous
> namespace)::hang_tester*, proton::container*> >, void ()>'
> 19: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior
> /Library/Developer/CommandLineTools/usr/bin/../include/c++/v1/functional:1808:30
> in
> {noformat}
> These errors seem to be occuring for the same reason as PROTON-2354 -- the
> RTTI information is no being correctly generated for some objects and when
> the UBSAN code goes to check whether the correct object relationships occur
> it fails because the RTTI information is not correct.
> If the build uses {{-DENABLE_HIDE_UNEXPORTED_SYMBOLS=no}} then these errors
> go away, so this is a fine workaround. But the solution is undoubtedly the
> same as PROTON-2354 -- to create some more key functions (as in exported
> virtual destructors) in some more classes.
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