Created attachment 1819417 [details]
test_main.cpp

Created attachment 1819417 [details]
test_main.cpp

Description of problem:

Unit tests in a layered product fail with SIGSEGV when product is compiled with Link Time Optimization.


Version-Release number of selected component (if applicable):

The crash when using LTO happens on RHEL 8.4. On RHEL 8.3, with older GCC version, this works fine.

We also tested on the current ubi8 docker image, where the segfault also happens.

How reproducible:

Always.


Steps to Reproduce:

0. Download the .hpp and .c files from attachments.

1. Compile the attached reproducer with LTO:

    g++ -I . test_main.cpp -flto -fno-fat-lto-objects -o test

2. Run the result

    ./test

3. Observe the crash

$ gdb -quiet -ex 'set pagination off' -ex run -ex 'thread apply all bt' -ex 'set confirm off' -ex quit --args ./test
Reading symbols from ./test...(no debugging symbols found)...done.
Starting program: /mnt/repos/docker_repos/qpid-proton/reproducer/test 

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()

Thread 1 (process 4926):
#0  0x0000000000000000 in ?? ()
#1  0x000000000040e30b in std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory>, true>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) [clone .lto_priv.1324] ()
#2  0x0000000000485de5 in void __gnu_cxx::new_allocator<std::_Rb_tree_node<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > >::construct<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&>(std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#3  0x000000000047f974 in void std::allocator_traits<std::allocator<std::_Rb_tree_node<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > > >::construct<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&>(std::allocator<std::_Rb_tree_node<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > >&, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#4  0x0000000000477400 in void std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > >::_M_construct_node<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&>(std::_Rb_tree_node<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#5  0x000000000046a55c in std::_Rb_tree_node<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >* std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > >::_M_create_node<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#6  0x000000000045bc2e in std::pair<std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >, bool> std::_Rb_tree<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> >, std::_Select1st<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > >::_M_emplace_unique<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#7  0x000000000044cc3a in std::pair<std::_Rb_tree_iterator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > >, bool> std::map<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::shared_ptr<Catch::IReporterFactory>, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::pair<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const, std::shared_ptr<Catch::IReporterFactory> > > >::emplace<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&>(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#8  0x000000000042c181 in Catch::ReporterRegistry::registerReporter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#9  0x000000000042be13 in Catch::(anonymous namespace)::RegistryHub::registerReporter(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::shared_ptr<Catch::IReporterFactory> const&) ()
#10 0x0000000000452583 in Catch::ReporterRegistrar<Catch::CompactReporter>::ReporterRegistrar(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
#11 0x00000000004ae407 in __static_initialization_and_destruction_0(int, int) ()
#12 0x00000000004b6d2a in _GLOBAL__sub_I__ZN5Catch6Detail6ApproxC2Ed ()
#13 0x00000000004b6d7d in __libc_csu_init ()
#14 0x00007ffff70ff41e in __libc_start_main (main=0x447031 <main>, argc=1, argv=0x7fffffffec98, init=0x4b6d30 <__libc_csu_init>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffec88) at ../csu/libc-start.c:270
#15 0x000000000040724e in _start ()

Actual results:

SIGSEGV

Expected results:

===============================================================================
No tests ran

(there are no tests defined in the reproducer program, the segfault happens during testrunner initialization)

Additional info:

https://issues.redhat.com/browse/ENTMQCL-2669 Proton unittests fail on RHEL 8.4 when run the way QE runs them from srpm

Notes from Andrew Sticher from debugging the problem, Jira comment https://issues.redhat.com/browse/ENTMQCL-2781?focusedCommentId=16238266&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16238266