From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D4438385800B; Mon, 11 Jan 2021 09:54:57 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D4438385800B From: "marxin at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug bootstrap/98414] [11 Regression] UBSAN bootstrap is broken: ubsan/ubsan_type_hash_itanium.cpp:162: undefined reference to `__dynamic_cast' since r11-6083-gb7dfc2074c78415d451eb34d1608016c80b1c41a Date: Mon, 11 Jan 2021 09:54:57 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: bootstrap X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: marxin at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jan 2021 09:54:57 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98414 --- Comment #11 from Martin Li=C5=A1ka --- There's a self-container test-case: $ cat resolver.ii class Resolver { int GetCMIName(); virtual char GetCMISuffix() { return 'c'; } }; int Resolver::GetCMIName() { GetCMISuffix(); return 0; } int main() {} $ -static-libstdc++ -static-libgcc -fsanitize=3Dundefined -static-libubsan [fine] $ g++ -fsanitize=3Dundefined resolver.ii -static-libstdc++ -static-libubsan /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /usr/lib64/gcc/x86_64-suse-linux/10/libubsan.a(ubsan_type_hash_itanium.o): = in function `findBaseAtOffset(__cxxabiv1::__class_type_info const*, long)': /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:161: undefined reference to `__dynamic_cast' /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:165: undefined reference to `typeinfo for __cxxabiv1::__vmi_class_type_info' /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:165: undefined reference to `__dynamic_cast' /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /usr/lib64/gcc/x86_64-suse-linux/10/libubsan.a(ubsan_type_hash_itanium.o): = in function `isDerivedFromAtOffset(__cxxabiv1::__class_type_info const*, __cxxabiv1::__class_type_info const*, long)': /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:124: undefined reference to `__dynamic_cast' /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:128: undefined reference to `typeinfo for __cxxabiv1::__vmi_class_type_info' /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:128: undefined reference to `__dynamic_cast' /usr/lib64/gcc/x86_64-suse-linux/10/../../../../x86_64-suse-linux/bin/ld: /usr/lib64/gcc/x86_64-suse-linux/10/libubsan.a(ubsan_type_hash_itanium.o): = in function `__ubsan::checkDynamicType(void*, void*, unsigned long)': /home/abuild/rpmbuild/BUILD/gcc-10.2.1+git1030/obj-x86_64-suse-linux/x86_64= -suse-linux/libsanitizer/ubsan/../../../../libsanitizer/ubsan/ubsan_type_ha= sh_itanium.cpp:231: undefined reference to `__dynamic_cast' collect2: error: ld returned 1 exit status=