[cfe-dev] clang segmentation fault in versions >=5.0.2 with `-debug-info-kind=limited`

Reid Kleckner via cfe-dev cfe-dev at lists.llvm.org
Tue Oct 9 14:11:02 PDT 2018


Looks like there's something wrong with the zlib integration. Did you make
sure the docker image has zlib? It's also possible that the official
release did not have zlib enabled for some reason, that would also cause a
crash.

As a workaround, don't request compressed debug info sections.

On Tue, Oct 9, 2018 at 11:21 AM Kaveh Vaghefi via cfe-dev <
cfe-dev at lists.llvm.org> wrote:

> We run clang in a docker container based on Ubuntu 16.04.  In it we
> download the tar.xz archive for clang, place it in /opt, and symlink it in
> using `update-alternatives` (here's the line from our Dockerfile)
>
> RUN export CLANG_VERSION=5.0.1 && \
>     export
> CLANG_PKG=clang+llvm-$CLANG_VERSION-x86_64-linux-gnu-ubuntu-16.04 && \
>     wget --progress=bar:force
> http://llvm.org/releases/$CLANG_VERSION/$CLANG_PKG.tar.xz && \
>     tar xvfJ $CLANG_PKG.tar.xz -C /opt && \
>     chmod -R 755 /opt/$CLANG_PKG && \
>     # make symlinks to abstract compiler version
>     update-alternatives --install /usr/bin/clang clang
> /opt/$CLANG_PKG/bin/clang 100 \
>         --slave /usr/bin/clang++ clang++ /opt/$CLANG_PKG/bin/clang++ \
>         --slave /usr/bin/llvm-symbolizer llvm-symbolizer
> /opt/$CLANG_PKG/bin/llvm-symbolizer \
>         --slave /usr/bin/llvm-profdata llvm-profdata
> /opt/$CLANG_PKG/bin/llvm-profdata\
>         --slave /usr/bin/llvm-ar llvm-ar /opt/$CLANG_PKG/bin/llvm-ar \
>         --slave /usr/bin/lld lld /opt/$CLANG_PKG/bin/lld \
>         --slave /usr/bin/llvm-nm llvm-nm /opt/$CLANG_PKG/bin/llvm-nm \
>         --slave /usr/bin/llvm-objdump llvm-objdump
> /opt/$CLANG_PKG/bin/llvm-objdump \
>         --slave /usr/bin/clang-format clang-format
> /opt/$CLANG_PKG/bin/clang-format \
>         --slave /usr/bin/llvm-ranlib llvm-ranlib
> /opt/$CLANG_PKG/bin/llvm-ranlib \
>         --slave /lib/libc++.so libc++.so /opt/$CLANG_PKG/lib/libc++.so \
>         --slave /lib/libc++.so.1 libc++.so.1
> /opt/$CLANG_PKG/lib/libc++.so.1 \
>         --slave /lib/libc++.so.1.0 libc++.so.1.0
> /opt/$CLANG_PKG/lib/libc++.so.1.0 \
>         --slave /lib/libc++abi.so libc++abi.so
> /opt/$CLANG_PKG/lib/libc++abi.so \
>         --slave /lib/libc++abi.so.1 libc++abi.so.1
> /opt/$CLANG_PKG/lib/libc++abi.so.1 \
>         --slave /lib/libc++abi.so.1.0 libc++abi.so.1.0
> /opt/$CLANG_PKG/lib/libc++abi.so.1.0 \
>         --slave /lib/libomp.so libomp.so /opt/$CLANG_PKG/lib/libomp.so
>
> I'm finding that if I use any version after 5.0.1, clang exhibits a
> segmentation fault with the `-g` option passed in.  If I remove the
> `-debug-info-kind=limited` command on the invocation below, the
> segmentation fault does not happen.  I believe this is a bug that needs to
> be fixed, but I'd appreciate the insight of someone more knowledgable with
> clang.
>
> $ /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0 \
> > -cc1 \
> > -triple x86_64-unknown-linux-gnu \
> > -emit-obj \
> > --compress-debug-sections \
> > -disable-free \
> > -disable-llvm-verifier \
> > -discard-value-names \
> > -main-file-name buildinfo_query.cc \
> > -mrelocation-model static \
> > -mthread-model posix \
> > -mdisable-fp-elim \
> > -fmath-errno \
> > -masm-verbose \
> > -mconstructor-aliases \
> > -munwind-tables \
> > -fuse-init-array \
> > -target-cpu x86-64 \
> > -momit-leaf-frame-pointer \
> > -dwarf-column-info \
> > -debug-info-kind=limited \
> > -dwarf-version=4 \
> > -debugger-tuning=gdb \
> > -coverage-notes-file
> /proc/self/cwd/bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.gcno
> \
> > -resource-dir
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/lib/clang/5.0.2 \
> > -dependency-file
> bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.d
> \
> > -MT
> bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.o
> \
> > -sys-header-deps \
> > -iquote . \
> > -iquote bazel-out/k8-py3-opt/genfiles \
> > -iquote external/bazel_tools \
> > -iquote bazel-out/k8-py3-opt/genfiles/external/bazel_tools \
> > -isystem external/bazel_tools/tools/cpp/gcc3 \
> > -D NDEBUG \
> > -internal-isystem
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/../include/c++/v1 \
> > -internal-isystem /usr/local/include \
> > -internal-isystem
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/lib/clang/5.0.2/include
> \
> > -internal-externc-isystem /usr/include/x86_64-linux-gnu \
> > -internal-externc-isystem /usr/include \
> > -O3 \
> > -Wthread-safety \
> > -Wno-unknown-pragmas \
> > -Wno-inconsistent-missing-override \
> > -Wno-deprecated-register \
> > -Werror \
> > -Wno-sign-compare \
> > -Wno-invalid-partial-specialization \
> > -std=c++1z \
> > -fdeprecated-macro \
> > -fdebug-compilation-dir /proc/self/cwd \
> > -ferror-limit 19 \
> > -fmessage-length 0 \
> > -fopenmp \
> > -fobjc-runtime=gcc \
> > -fcxx-exceptions \
> > -fexceptions \
> > -fdiagnostics-show-option \
> > -vectorize-loops \
> > -vectorize-slp \
> > -o
> bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.o
> \
> > -x c++ devtools/buildinfo_query.cc
> #0 0x0000000001a63ae4 PrintStackTraceSignalHandler(void*)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1a63ae4)
> #1 0x0000000001a63dc6 SignalHandler(int)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1a63dc6)
> #2 0x00007fa3729bd390 __restore_rt
> (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
> #3 0x000000000181e2a4 llvm::Error
> llvm::handleErrors<llvm::consumeError(llvm::Error)::{lambda(llvm::ErrorInfoBase
> const&)#1}>(llvm::Error,
> llvm::consumeError(llvm::Error)::{lambda(llvm::ErrorInfoBase const&)#1}&&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x181e2a4)
> #4 0x0000000001819b37 (anonymous
> namespace)::ELFObjectWriter::writeObject(llvm::MCAssembler&,
> llvm::MCAsmLayout const&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1819b37)
> #5 0x000000000182a8bb llvm::MCAssembler::Finish()
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x182a8bb)
> #6 0x000000000207ef9c llvm::AsmPrinter::doFinalization(llvm::Module&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x207ef9c)
> #7 0x000000000169b163 llvm::FPPassManager::doFinalization(llvm::Module&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x169b163)
> #8 0x000000000169b561 llvm::legacy::PassManagerImpl::run(llvm::Module&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x169b561)
> #9 0x0000000001ba4dd2 clang::EmitBackendOutput(clang::DiagnosticsEngine&,
> clang::HeaderSearchOptions const&, clang::CodeGenOptions const&,
> clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout
> const&, llvm::Module*, clang::BackendAction,
> std::unique_ptr<llvm::raw_pwrite_stream,
> std::default_delete<llvm::raw_pwrite_stream> >)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1ba4dd2)
> #10 0x0000000002298f0d
> clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x2298f0d)
> #11 0x00000000024c5636 clang::ParseAST(clang::Sema&, bool, bool)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x24c5636)
> #12 0x0000000001f2cf0f clang::FrontendAction::Execute()
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1f2cf0f)
> #13 0x0000000001ede2b8
> clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1ede2b8)
> #14 0x0000000001fa94ad
> clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x1fa94ad)
> #15 0x00000000008afd51 cc1_main(llvm::ArrayRef<char const*>, char const*,
> void*)
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x8afd51)
> #16 0x00000000008ae5e6 main
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x8ae5e6)
> #17 0x00007fa371955830 __libc_start_main
> (/lib/x86_64-linux-gnu/libc.so.6+0x20830)
> #18 0x00000000008ab999 _start
> (/opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0+0x8ab999)
> Stack dump:
> 0.      Program arguments:
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/clang-5.0 -cc1
> -triple x86_64-unknown-linux-gnu -emit-obj --compress-debug-sections
> -disable-free -disable-llvm-verifier -discard-value-names -main-file-name
> buildinfo_query.cc -mrelocation-model static -mthread-model posix
> -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases
> -munwind-tables -fuse-init-array -target-cpu x86-64
> -momit-leaf-frame-pointer -dwarf-column-info -debug-info-kind=limited
> -dwarf-version=4 -debugger-tuning=gdb -coverage-notes-file
> /proc/self/cwd/bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.gcno
> -resource-dir
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/lib/clang/5.0.2
> -dependency-file
> bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.d
> -MT
> bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.o
> -sys-header-deps -iquote . -iquote bazel-out/k8-py3-opt/genfiles -iquote
> external/bazel_tools -iquote
> bazel-out/k8-py3-opt/genfiles/external/bazel_tools -isystem
> external/bazel_tools/tools/cpp/gcc3 -D NDEBUG -internal-isystem
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/bin/../include/c++/v1
> -internal-isystem /usr/local/include -internal-isystem
> /opt/clang+llvm-5.0.2-x86_64-linux-gnu-ubuntu-16.04/lib/clang/5.0.2/include
> -internal-externc-isystem /usr/include/x86_64-linux-gnu
> -internal-externc-isystem /usr/include -O3 -Wthread-safety
> -Wno-unknown-pragmas -Wno-inconsistent-missing-override
> -Wno-deprecated-register -Werror -Wno-sign-compare
> -Wno-invalid-partial-specialization -std=c++1z -fdeprecated-macro
> -fdebug-compilation-dir /proc/self/cwd -ferror-limit 19 -fmessage-length 0
> -fopenmp -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
> -fdiagnostics-show-option -vectorize-loops -vectorize-slp -o
> bazel-out/k8-py3-opt/bin/devtools/_objs/buildinfo_query/devtools/buildinfo_query.o
> -x c++ devtools/buildinfo_query.cc
> 1.      <eof> parser at end of file
> 2.      Code generation
> Segmentation fault (core dumped)
>
>
>
> _______________________________________________
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> cfe-dev at lists.llvm.org
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