Tests fail with LTO

[eli-schwartz]

I tried to build with the following *FLAGS to optimize the build: -flto=4 -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing

I got this error:

testing.capture-output ../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.run

    LD_LIBRARY_PATH="/usr/lib/ccache/bin:/usr/lib/ccache/lib:/usr/lib/ccache/lib32:/usr/lib/ccache/lib64:/var/tmp/portage/dev-libs/boost-1.89.0/work/boost_1_89_0-abi_x86_64.amd64/bin.v2/libs/atomic/build/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden:/var/tmp/portage/dev-libs/boost-1.89.0/work/boost_1_89_0-abi_x86_64.amd64/bin.v2/libs/dll/test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden:/var/tmp/portage/dev-libs/boost-1.89.0/work/boost_1_89_0-abi_x86_64.amd64/bin.v2/libs/filesystem/build/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden:$LD_LIBRARY_PATH"
export LD_LIBRARY_PATH

     "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test"  "../../../bin.v2/libs/dll/test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/libtest_library.so.1.89.0" > "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.output" 2>&1 < /dev/null
    status=$?
    echo >> "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.output"
    echo EXIT STATUS: $status >> "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.output"
    if test $status -eq 0 ; then
        cp "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.output" "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.run" >/dev/null
    fi
    verbose=0
    if test $status -ne 0 ; then
        verbose=1
    fi
    if test $verbose -eq 1 ; then
        echo ====== BEGIN OUTPUT ======
        cat "../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_test.output"
        echo ====== END OUTPUT ======
    fi
    exit $status

====== BEGIN OUTPUT ======
.symtab,  .strtab,  .shstrtab,  .gnu.hash,  .dynsym,  .dynstr,  .gnu.version,  .gnu.version_r,  .rela.dyn,  .rela.plt,  .relr.dyn,  .init,  .plt.got,  .plt.sec,  .text,  .fini,  .rodata,  .note.gnu.property,  .eh_frame_hdr,  .eh_frame,  .gcc_except_table,  .init_array,  .fini_array,  .data.rel.ro,  .dynamic,  .data,  boostdll,  .bss,  .comment,  .GCC.command.line,  .debug_aranges,  .debug_info,  .debug_abbrev,  .debug_line,  .debug_str,  .debug_line_str,  .debug_loclists,  .debug_rnglists,  


_ZTIN5boost6system6detail12std_categoryE
_ZTIN5boost16exception_detail10clone_baseE
_ZTVN5boost6system6detail22generic_error_categoryE
_ZTSN5boost6system6detail21system_error_categoryE
say_hello
do_share
_ZTSN5boost6system6detail22generic_error_categoryE
_ZTSSt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE
lib_version
_ZTVN5boost6system6detail21system_error_categoryE
rvalue_reference_to_internal_integer
_ZTISt16_Sp_counted_baseILN9__gnu_cxx12_Lock_policyE2EE
_ZTSN5boost6system6detail12std_categoryE
increment
_ZTSN5boost16exception_detail10clone_baseE
_ZTSN5boost10wrapexceptINS_6system12system_errorEEE
foo_variable
_ZTIN5boost6system6detail22generic_error_categoryE
_ZTIN5boost9exceptionE
_ZTSSt19_Sp_make_shared_tag
_ZTIN5boost10wrapexceptINS_6system12system_errorEEE
info
_ZTVN5boost6system14error_categoryE
_ZTSN5boost6system6detail22interop_error_categoryE
_ZTISt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE
_ZTSSt11_Mutex_baseILN9__gnu_cxx12_Lock_policyE2EE
protected_function
integer_g
ref_returning_function
_ZTIN5boost6system6detail22interop_error_categoryE
_ZZNSt19_Sp_make_shared_tag5_S_tiEvE5__tag
foo_bar
_ZTIN5boost6system12system_errorE
module_location_from_itself
_ZTVN5boost6system6detail22interop_error_categoryE
const_integer_g_alias
_ZTIN5boost6system14error_categoryE
_ZTSN5boost6system12system_errorE
reference_to_internal_integer
_ZTSN5boost9exceptionE
_ZTIN5boost6system6detail21system_error_categoryE
_ZTSN5boost6system14error_categoryE
const_integer_g


'boostdll' symbols:
do_share
foo_variable
info
ref_returning_function
foo_bar
module_location_from_itself
const_integer_g_alias


'empty' symbols:
Self: ../../../bin.v2/libs/dll/test/library_info_test.test/gcc-14.3/gentoorelease/x86_64/pch-off/threading-multi/visibility-hidden/library_info_testlibrary_info_test.cpp(64): test 'std::find(sec.begin(), sec.end(), "boostdll") != sec.end()' failed in function 'int main(int, char**)'
library_info_test.cpp(68): test 'std::find(symb.begin(), symb.end(), "create_plugin") != symb.end()' failed in function 'int main(int, char**)'
2 errors detected.

EXIT STATUS: 2
====== END OUTPUT ======

Originally reported downstream: https://bugs.gentoo.org/956660
Full build log: build.log