https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98414
Bug ID: 98414
Summary: [11 Regression] UBSAN bootstrap is broken:
ubsan/ubsan_type_hash_itanium.cpp:162: undefined
reference to `__dynamic_cast'
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: jakub at gcc dot gnu.org
Target Milestone: ---
The following fails:
/home/mliska/Programming/gcc/objdir/./prev-gcc/xg++
-B/home/mliska/Programming/gcc/objdir/./prev-gcc/
-B/usr/local/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
-I/home/mliska/Programming/gcc/libstdc++-v3/libsupc++
-L/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-no-pie -g -O2 -fchecking=1 -fsanitize=undefined -DUBSAN_BOOTSTRAP -DIN_GCC
-fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall
-Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag
-Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -fno-common -DHAVE_CONFIG_H
-static-libstdc++ -static-libgcc -fsanitize=undefined -static-libubsan
-DUBSAN_BOOTSTRAP
-B/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libsanitizer/
-B/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libsanitizer/ubsan/
-B/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libsanitizer/ubsan/.libs
-o cc1plus \
cp/cp-lang.o c-family/stub-objc.o cp/call.o cp/class.o cp/constexpr.o
cp/constraint.o cp/coroutines.o cp/cp-gimplify.o cp/cp-objcp-common.o
cp/cp-ubsan.o cp/cvt.o cp/cxx-pretty-print.o cp/decl.o cp/decl2.o cp/dump.o
cp/error.o cp/except.o cp/expr.o cp/friend.o cp/init.o cp/lambda.o cp/lex.o
cp/logic.o cp/mangle.o cp/mapper-client.o cp/mapper-resolver.o cp/method.o
cp/module.o cp/name-lookup.o cp/optimize.o cp/parser.o cp/pt.o cp/ptree.o
cp/rtti.o cp/search.o cp/semantics.o cp/tree.o cp/typeck.o cp/typeck2.o
cp/vtable-class-hierarchy.o attribs.o incpath.o c-family/c-common.o
c-family/c-cppbuiltin.o c-family/c-dump.o c-family/c-format.o
c-family/c-gimplify.o c-family/c-indentation.o c-family/c-lex.o
c-family/c-omp.o c-family/c-opts.o c-family/c-pch.o c-family/c-ppoutput.o
c-family/c-pragma.o c-family/c-pretty-print.o c-family/c-semantics.o
c-family/c-ada-spec.o c-family/c-ubsan.o c-family/known-headers.o
c-family/c-attribs.o c-family/c-warn.o c-family/c-spellcheck.o i386-c.o
glibc-c.o cc1plus-checksum.o libbackend.a main.o libcommon-target.a libcommon.a
../libcpp/libcpp.a ../libcody/libcody.a ../libdecnumber/libdecnumber.a
libcommon.a ../libcpp/libcpp.a ../libbacktrace/.libs/libbacktrace.a
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a -lmpc -lmpfr -lgmp
-rdynamic -L./../zlib -lz
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libsanitizer/ubsan/.libs/libubsan.a(ubsan_type_hash_itanium.o):
in function `findBaseAtOffset(__cxxabiv1::__class_type_info const*, long)':
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:162:
undefined reference to `__dynamic_cast'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:166:
undefined reference to `typeinfo for __cxxabiv1::__vmi_class_type_info'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:166:
undefined reference to `__dynamic_cast'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libsanitizer/ubsan/.libs/libubsan.a(ubsan_type_hash_itanium.o):
in function `isDerivedFromAtOffset(__cxxabiv1::__class_type_info const*,
__cxxabiv1::__class_type_info const*, long)':
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:125:
undefined reference to `__dynamic_cast'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:129:
undefined reference to `typeinfo for __cxxabiv1::__vmi_class_type_info'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:129:
undefined reference to `__dynamic_cast'
/usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/bin/ld:
/home/mliska/Programming/gcc/objdir/prev-x86_64-pc-linux-gnu/libsanitizer/ubsan/.libs/libubsan.a(ubsan_type_hash_itanium.o):
in function `__ubsan::checkDynamicType(void*, void*, unsigned long)':
/home/mliska/Programming/gcc/objdir/x86_64-pc-linux-gnu/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_hash_itanium.cpp:233:
undefined reference to `__dynamic_cast'
collect2: error: ld returned 1 exit status
make: *** [../../gcc/cp/Make-lang.in:136: cc1plus] Error 1
adding -lstdc++ to the linking command line fixes that.
Is it a known issue?
