https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100439
--- Comment #6 from Florin Iucha <florin.iucha at amd dot com> ---
With the test file above, and this Makefile:
--8< --8< --8< --8< --8< --8< --8< --8< --8< --8< --8< --8<
ALL: bin/test_hello
.PHONY: clean
CXX=/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++
CXXFLAGS=-m64 -g -std=c++20 -fsanitize=undefined -fno-omit-frame-pointer
LDFLAGS=-Wl,-rpath
-Wl,/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib
-Wl,-dynamic-linker
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/ld-linux-x86-64.so.2
-fsanitize=undefined
GOOGLE_TEST_PATH=googletest/googletest
GOOGLE_TEST_OBJECTS=obj/gtest.o obj/gtest_main.o obj/gtest-port.o
obj/gtest-filepath.o obj/gtest-death-test.o obj/gtest-test-part.o
obj/gtest-printers.o
obj/test_hello.o: test_hello.cpp
$(CXX) $(CXXFLAGS) -o $@ -I$(GOOGLE_TEST_PATH)/include -c $<
obj/gtest.o: $(GOOGLE_TEST_PATH)/src/gtest.cc
$(CXX) $(CXXFLAGS) -o $@ -I$(GOOGLE_TEST_PATH)/include
-I$(GOOGLE_TEST_PATH) -c $<
obj/gtest%.o: $(GOOGLE_TEST_PATH)/src/gtest%.cc
$(CXX) $(CXXFLAGS) -o $@ -I$(GOOGLE_TEST_PATH)/include
-I$(GOOGLE_TEST_PATH) -c $<
bin/test_hello: obj/test_hello.o $(GOOGLE_TEST_OBJECTS)
$(CXX) -o $@ $(LDFLAGS) $^ -lpthread
clean:
$(RM) bin/test_hello obj/*.o
--8< --8< --8< --8< --8< --8< --8< --8< --8< --8< --8< --8<
Cloning google test:
$ git clone https://github.com/google/googletest
(The HEAD now is at f5e592d8ee5ffb1d9af5be7f715ce3576b8bf9c4)
Building:
$ make
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/test_hello.o
-Igoogletest/googletest/include -c test_hello.cpp
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest_main.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest_main.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest-port.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest-port.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest-filepath.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest-filepath.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest-death-test.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest-death-test.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest-test-part.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest-test-part.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -m64 -g -std=c++20
-fsanitize=undefined -fno-omit-frame-pointer -o obj/gtest-printers.o
-Igoogletest/googletest/include -Igoogletest/googletest -c
googletest/googletest/src/gtest-printers.cc
/opt/tng-gcc11-glibc-linux5.4/bin/x86_64-tng-linux-gnu-g++ -o bin/test_hello
-Wl,-rpath -Wl,/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib
-Wl,-dynamic-linker
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/ld-linux-x86-64.so.2
-fsanitize=undefined obj/test_hello.o obj/gtest.o obj/gtest_main.o
obj/gtest-port.o obj/gtest-filepath.o obj/gtest-death-test.o
obj/gtest-test-part.o obj/gtest-printers.o -lpthread
Running:
$ ./bin/test_hello
zsh: segmentation fault (core dumped) ./bin/test_hello
Debugging:
(gdb) b __dynamic_cast
Breakpoint 1 at 0x4095c0
(gdb) ignore 1 3
Will ignore next 3 crossings of breakpoint 1.
(gdb) run
...
Breakpoint 1, 0x00007ffff7ea92fd in __dynamic_cast () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
(gdb) bt
#0 0x00007ffff7ea92fd in __dynamic_cast () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#1 0x00007ffff736be36 in ?? () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#2 0x00007ffff736ae7a in ?? () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#3 0x00007ffff736b3b2 in __ubsan_handle_dynamic_type_cache_miss () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#4 0x000000000045fdaa in std::type_info::operator== (this=0x7ffff7f97068
<typeinfo for __cxxabiv1::__si_class_type_info>, __arg=...)
at
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/include/c++/11.1.1/typeinfo:122
#5 0x00007ffff7eab007 in __cxxabiv1::__si_class_type_info::__do_dyncast(long,
__cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info
const*, void const*, __cxxabiv1::__class_type_info const*, void const*,
__cxxabiv1::__class_type_info::__dyncast_result&) const ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#6 0x00007ffff7ea9379 in __dynamic_cast () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#7 0x00007ffff736be36 in ?? () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#8 0x00007ffff736ae7a in ?? () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#9 0x00007ffff736b3b2 in __ubsan_handle_dynamic_type_cache_miss () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#10 0x000000000045fdaa in std::type_info::operator== (this=0x7ffff7f97068
<typeinfo for __cxxabiv1::__si_class_type_info>, __arg=...)
at
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/include/c++/11.1.1/typeinfo:122
#11 0x00007ffff7eab007 in __cxxabiv1::__si_class_type_info::__do_dyncast(long,
__cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info
const*, void const*, __cxxabiv1::__class_type_info const*, void const*,
__cxxabiv1::__class_type_info::__dyncast_result&) const ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#12 0x00007ffff7ea9379 in __dynamic_cast () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#13 0x00007ffff736be36 in ?? () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#14 0x00007ffff736ae7a in ?? () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#15 0x00007ffff736b3b2 in __ubsan_handle_dynamic_type_cache_miss () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libubsan.so.1
#16 0x000000000045fdaa in std::type_info::operator== (this=0x7ffff7f985a8
<typeinfo for std::ctype<char>>, __arg=...)
at
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/include/c++/11.1.1/typeinfo:122
#17 0x00007ffff7eab882 in __cxxabiv1::__vmi_class_type_info::__do_dyncast(long,
__cxxabiv1::__class_type_info::__sub_kind, __cxxabiv1::__class_type_info
const*, void const*, __cxxabiv1::__class_type_info const*, void const*,
__cxxabiv1::__class_type_info::__dyncast_result&) const ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#18 0x00007ffff7ea9379 in __dynamic_cast () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#19 0x00007ffff7eef6ff in bool std::has_facet<std::ctype<char> >(std::locale
const&) ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#20 0x00007ffff7ee6977 in std::basic_ios<char, std::char_traits<char>
>::_M_cache_locale(std::locale const&) ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#21 0x00007ffff7ee6c01 in std::basic_ios<char, std::char_traits<char>
>::init(std::basic_streambuf<char, std::char_traits<char> >*) ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#22 0x00007ffff7ef6c6d in std::basic_ostream<char, std::char_traits<char>
>::basic_ostream(std::basic_streambuf<char, std::char_traits<char> >*) ()
from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#23 0x00007ffff7eb335b in std::ios_base::Init::Init() () from
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/sysroot/lib/libstdc++.so.6
#24 0x0000000000409ebb in __static_initialization_and_destruction_0
(__initialize_p=1, __priority=65535)
at
/opt/tng-gcc11-glibc-linux5.4/x86_64-tng-linux-gnu/include/c++/11.1.1/iostream:74
#25 0x000000000040a113 in _GLOBAL__sub_I__ZN16Hello_World_Test10test_info_E ()
at test_hello.cpp:8
#26 0x00000000004e0e95 in __libc_csu_init (argc=argc@entry=1,
argv=argv@entry=0x7fffffffe858, envp=0x7fffffffe868) at elf-init.c:89
#27 0x00007ffff71aa76d in __libc_start_main (main=0x4be23b <main(int, char**)>,
argc=1, argv=0x7fffffffe858, init=0x4e0e50 <__libc_csu_init>,
fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe848)
at ../csu/libc-start.c:279
#28 0x0000000000409b8a in _start () at ../sysdeps/x86_64/start.S:120
Note this happens when GCC and GLIBC are built with crosstool-ng
(https://crosstool-ng.github.io/); I will attach the configuration file used to
generate the toolchain.
