search for: __class_type_info

hi, how to explain the following two statement in detail? (1) %struct.TorRec = type { int, void ()* } (2) "struct._GLOBAL__N_::vtable_prefix" = type { int, "struct.__cxxabiv1::__class_type_info"*, sbyte* } yueqiang

...results in the following build error: ../projects/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cc:233: error: undefined reference to 'typeinfo for std::type_info' ../projects/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cc:233: error: undefined reference to 'typeinfo for __cxxabiv1::__class_type_info' ../projects/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cc:233: error: undefined reference to '__dynamic_cast' [...] Looks like ubsan no longer links to libc++abi ? (I see -lgcc_s -lc -ldl -lrt -lpthread on the linker line.) This configuration has worked with r308719 so I am guess...

...gt; ../projects/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cc:233: >> error: undefined reference to 'typeinfo for std::type_info' >> ../projects/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cc:233: >> error: undefined reference to 'typeinfo for >> __cxxabiv1::__class_type_info' >> ../projects/compiler-rt/lib/ubsan/ubsan_type_hash_itanium.cc:233: >> error: undefined reference to '__dynamic_cast' >> [...] >> >> Looks like ubsan no longer links to libc++abi ? (I see -lgcc_s -lc >> -ldl -lrt -lpthread on the linker line.) >&...

...so there are a lot of undefined references to __cxa_allocate_exception, __cxa_begin_catch, __cxa_end_catch, __cxa_free_exception, __cxa_guard_abort, __cxa_guard_acquire, __cxa_guard_release, __cxa_pure_virtual, __cxa_rethrow, __cxa_throw, __gxx_personality_v0, _Unwind_Resume, vtable for __cxxabiv1::__class_type_info, vtable for __cxxabiv1::__si_class_type_info, vtable for __cxxabiv1::__vmi_class_type_info. The full output of the linking command is too long and is attached gzipped. The linking command is the following: > > Those symbols are from libc++abi, and it isn't on your link line. It depends...

...so there are a lot of undefined references to __cxa_allocate_exception, __cxa_begin_catch, __cxa_end_catch, __cxa_free_exception, __cxa_guard_abort, __cxa_guard_acquire, __cxa_guard_release, __cxa_pure_virtual, __cxa_rethrow, __cxa_throw, __gxx_personality_v0, _Unwind_Resume, vtable for __cxxabiv1::__class_type_info, vtable for __cxxabiv1::__si_class_type_info, vtable for __cxxabiv1::__vmi_class_type_info. The full output of the linking command is too long and is attached gzipped. The linking command is the following: x86_64-linux-musl-g++ -fPIC -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -...

...within the avr-gcc MCU specific libraries /opt/avr/avr-libc/avr/include/util/delay.h:187: undefined reference to `__builtin_avr_delay_cycles(unsigned long)' as well as troubles which seem to be originating from my C++ usage within the firmware undefined reference to `vtable for __cxxabiv1::__class_type_info' Kind regards, Alex ________________________________________ Von: Sam Elliott [selliott at lowrisc.org] Gesendet: Mittwoch, 25. März 2020 13:17 An: Alexander Entinger Cc: llvm-dev at lists.llvm.org Betreff: Re: [llvm-dev] Build Clang/LLVM for AVR It looks like you’re cross-compiling for an...

...6-off-opt]: (.text+0xd3): undefined reference to `__cxa_throw' [i686-off-opt]: /tmp/ccIwimbk.o: In function `main': [i686-off-opt]: (.text+0x100): undefined reference to `__cxa_free_exception' [i686-off-opt]: /tmp/ccIwimbk.o:(.rodata+0x0): undefined reference to `vtable for __cxxabiv1::__class_type_info' [i686-off-opt]: collect2: ld returned 1 exit status [i686-off-opt]: make[4]: [Output/ctor_dtor_count-2.llc] Error 1 (ignored) [i686-off-opt]: ./llvm.official/projects/llvm-test/RunSafely.sh 500 0 /dev/null Output/ctor_dtor_count-2.out-llc Output/ctor_dtor_count-2.llc [i686-off-opt]: ./llvm.o...

...ringstreamIcSt11char_traitsIcESaIcEE (auto-import) Info: resolving vtable for std::basic_stringstream<char, std::char_traits<char>, std::allocator<char> > by linking to __imp___ZTVSt18basic_stringstreamIcSt11char_traitsIcESaIcEE (auto-import) Info: resolving vtable for __cxxabiv1::__class_type_info by linking to __imp___ZTVN10__cxxabiv117__class_type_infoE (auto-import) Creating library file: ..\libLLVMSystem.dll.a c:/mingw/bin/../lib/gcc/mingw32/4.5.0/../../../../mingw32/bin/ld.exe: warning: auto-importing has been activated without --enable-auto-import specified on the command line. This sh...

...locator]+0x0): undefined reference to `vtable for > __cxxabiv1::__si_class_type_info' > /homes/malecha/tmp/llvm/lib/ocaml/libLLVMSupport.a(Allocator.o):(.data.rel.ro._ZTIN4llvm13SlabAllocatorE[typeinfo > for llvm::SlabAllocator]+0x0): undefined reference to `vtable for > __cxxabiv1::__class_type_info' > /homes/malecha/tmp/llvm/lib/ocaml/libLLVMSupport.a(Errno.o): In function > `llvm::sys::StrError(int)': > Errno.cpp:(.text+0x49): undefined reference to `std::basic_string<char, > std::char_traits<char>, std::allocator<char> >::basic_string(char const*, >...

...error: 'exit' was not declared in this scope $ I modified the file and compiled it. $ g++ `xapian-config --cxxflags` quickstartindex.cc `xapian-config --libs` -o quickstartindex Info: resolving std::cout by linking to __imp___ZSt4cout (auto-import) Info: resolving vtable for __cxxabiv1::__class_type_info by linking to __imp___ZTVN10__cxxabiv117__class_type_infoE (auto-import) c:/programmer/haskell/mingw/bin/../lib/gcc/mingw32/4.5.2/../../../../mingw32/bin/ld.exe: warning: auto-importing has been activated without --enable-auto-import specified on the command line. This should work unless it involve...

Hi everyone, I've been wondering how to correctly build clang/LLVM for the AVR target architecture. Unfortunately documentation is very scarce (or outdated or I didn't find it) and while I've been able to build clang/LLVM for AVR I'm still falling short of compiling an actual binary for the MCU. Here are the steps I've undertaken so far: git clone