Source: llvm-toolchain-12 Version: 1:12.0.1-13 Severity: serious Tags: ftbfs Justification: fails to build from source (but built successfully in the past)
https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-12&arch=armel&ver=1%3A12.0.1-13&stamp=1634838707&raw=0 > [326/735] : && /<<PKGBUILDDIR>>/build-llvm/./bin/clang++ > --target=arm-linux-gnueabi -fPIC -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. > -fstack-protector-strong -Wformat -Werror=format-security -fPIC > -fvisibility-inlines-hidden -Werror=date-time > -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter > -Wwrite-strings -Wcast-qual -Wmissing-field-initializers > -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type > -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment > -Wstring-conversion -fdiagnostics-color -ffunction-sections -fdata-sections > -Wall -std=c++14 -Wno-unused-parameter -O3 -DNDEBUG -Wl,-z,relro -Wl,-z,defs > -Wl,-z,nodelete -nodefaultlibs -Wl,-z,text -nostdlib++ -Wl,--gc-sections > -Wl,-rpath-link,/<<PKGBUILDDIR>>/build-llvm/./lib -shared > -Wl,-soname,libclang_rt.scudo-arm.so -o > 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>compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.arm.dir/sanitizer_symbolizer_report.cpp.o > >compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.arm.dir/sanitizer_symbolizer_win.cpp.o > >compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.arm.dir/sanitizer_unwind_linux_libcdep.cpp.o > >compiler-rt/lib/sanitizer_common/CMakeFiles/RTSanitizerCommonSymbolizer.arm.dir/sanitizer_unwind_win.cpp.o > compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.arm.dir/ubsan_diag.cpp.o >compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.arm.dir/ubsan_init.cpp.o >compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.arm.dir/ubsan_flags.cpp.o >compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.arm.dir/ubsan_handlers.cpp.o >compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.arm.dir/ubsan_monitor.cpp.o >compiler-rt/lib/ubsan/CMakeFiles/RTUbsan.arm.dir/ubsan_value.cpp.o >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_allocator.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_crc32.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_errors.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_flags.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_malloc.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_termination.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_tsd_exclusive.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_tsd_shared.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_utils.cpp.o > >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_new_delete.cpp.o > -Wl,-rpath,"\$ORIGIN/../lib:/<<PKGBUILDDIR>>/build-llvm/./lib" -lgcc_s -lc > -ldl -lrt -lpthread -lstdc++ && : >/usr/bin/arm-linux-gnueabi-ld: >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_allocator.cpp.o: > in function `__scudo::Allocator::isRssLimitExceeded()': >./build-llvm/runtimes/runtimes-bins/./compiler-rt/lib/scudo/../sanitizer_common/sanitizer_atomic_clang_other.h:53: > undefined reference to `__atomic_load_8' >/usr/bin/arm-linux-gnueabi-ld: >compiler-rt/lib/scudo/CMakeFiles/clang_rt.scudo-dynamic-arm.dir/scudo_allocator.cpp.o: > in function `__scudo::Allocator::init()': >./build-llvm/runtimes/runtimes-bins/./compiler-rt/lib/scudo/../sanitizer_common/sanitizer_atomic_clang_other.h:79: > undefined reference to `__atomic_store_8' This might be similar to #995827 in llvm-toolchain-13, which was fixed by debian/patches/unbreak-atomic-mips.diff (but in a mips-specific way). It might be more scalable to use if(HAVE_CXX_ATOMICS_WITH_LIB OR HAVE_CXX_ATOMICS64_WITH_LIB) target_link_libraries(... PRIVATE atomic) endif() like upstream's llvm/tools/dsymutil/CMakeLists.txt does? The good news is that #996947 is *probably* fixed in this version (although it's hard to say until the package compiles fully successfully for an architecture). smcv