[cfe-dev] __thread keyword with target: powerpc-unknown-linux
James Gregurich
bayoubengal at mac.com
Wed May 28 20:19:41 PDT 2014
filed the bug. looks like a crash specific to targeting PPC. crashes 3.5 & 3.4.1
On May 28, 2014, at 8:22 AM, James Gregurich <bayoubengal at mac.com> wrote:
> howdy!
>
> Is __thread suppose to work? I got a crash which compiling libkqueue. it is complaining about…
>
>
> const char *
> kevent_dump(const struct kevent *kev)
> {
> static __thread char buf[1024];
>
> snprintf((char *) &buf[0], sizeof(buf),
> "{ ident=%d, filter=%s, %s, %s, data=%d, udata=%p }",
> (u_int) kev->ident,
> kevent_filter_dump(kev),
> kevent_flags_dump(kev),
> kevent_fflags_dump(kev),
> (int) kev->data,
> kev->udata);
>
> return ((const char *) &buf[0]);
> }
>
>
> I won’t bother submitting a bug report and a test file if __thread isn’t properly implemented (at least on powerpc linux) yet.
>
>
>
>
>
>
>
> crash log if someone is interested….
>
>
> Assertion failed: ((TLI.getTypeAction(*DAG.getContext(), Node->getOperand(i).getValueType()) == TargetLowering::TypeLegal || Node->getOperand(i).getOpcode() == ISD::TargetConstant) && "Unexpected illegal type!"), function LegalizeOp, file /Volumes/storage/clangcrosscompiler/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp, line 1174.
> 0 clang 0x00000001108104b8 void* llvm::object_creator<llvm::sys::ThreadLocal<llvm::PrettyStackTraceEntry const> >() + 15240
> 1 clang 0x00000001108109b4 void* llvm::object_creator<llvm::sys::ThreadLocal<llvm::PrettyStackTraceEntry const> >() + 16516
> 2 libsystem_platform.dylib 0x00007fff91f8e5aa _sigtramp + 26
> 3 libsystem_platform.dylib 000000000000000000 _sigtramp + 1845959280
> 4 clang 0x0000000110810766 void* llvm::object_creator<llvm::sys::ThreadLocal<llvm::PrettyStackTraceEntry const> >() + 15926
> 5 clang 0x0000000110810741 void* llvm::object_creator<llvm::sys::ThreadLocal<llvm::PrettyStackTraceEntry const> >() + 15889
> 6 clang 0x000000011002428d void std::__1::vector<std::__1::pair<llvm::Type*, llvm::Type* const*>, std::__1::allocator<std::__1::pair<llvm::Type*, llvm::Type* const*> > >::__push_back_slow_path<std::__1::pair<llvm::Type*, llvm::Type* const*> >(std::__1::pair<llvm::Type*, llvm::Type* const*>&&) + 53901
> 7 clang 0x000000011001cb7b void std::__1::vector<std::__1::pair<llvm::Type*, llvm::Type* const*>, std::__1::allocator<std::__1::pair<llvm::Type*, llvm::Type* const*> > >::__push_back_slow_path<std::__1::pair<llvm::Type*, llvm::Type* const*> >(std::__1::pair<llvm::Type*, llvm::Type* const*>&&) + 23419
> 8 clang 0x00000001101333f6 llvm::SmallVectorTemplateBase<llvm::MachineModuleInfo::VariableDbgInfo, false>::grow(unsigned long) + 36422
> 9 clang 0x0000000110131e0e llvm::SmallVectorTemplateBase<llvm::MachineModuleInfo::VariableDbgInfo, false>::grow(unsigned long) + 30814
> 10 clang 0x000000011012f6fa llvm::SmallVectorTemplateBase<llvm::MachineModuleInfo::VariableDbgInfo, false>::grow(unsigned long) + 20810
> 11 clang 0x000000010fe1e468 void std::__1::vector<std::__1::pair<llvm::MCSymbol*, llvm::MCSymbol*>, std::__1::allocator<std::__1::pair<llvm::MCSymbol*, llvm::MCSymbol*> > >::__push_back_slow_path<std::__1::pair<llvm::MCSymbol*, llvm::MCSymbol*> >(std::__1::pair<llvm::MCSymbol*, llvm::MCSymbol*>&&) + 115768
> 12 clang 0x00000001102714cc llvm::raw_ostream& llvm::WriteGraph<llvm::MachineFunction const*>(llvm::raw_ostream&, llvm::MachineFunction const* const&, bool, llvm::Twine const&) + 5916
> 13 clang 0x00000001107a110d void* llvm::object_creator<llvm::LeakDetectorImpl<void> >() + 25485
> 14 clang 0x00000001107a139b void* llvm::object_creator<llvm::LeakDetectorImpl<void> >() + 26139
> 15 clang 0x00000001107a19cc void* llvm::object_creator<llvm::LeakDetectorImpl<void> >() + 27724
> 16 clang 0x000000010eba4dee void std::__1::vector<clang::serialization::ModuleFile*, std::__1::allocator<clang::serialization::ModuleFile*> >::__push_back_slow_path<clang::serialization::ModuleFile* const&>(clang::serialization::ModuleFile* const&&&) + 8590
> 17 clang 0x000000010eccdcab llvm::SmallVectorTemplateBase<llvm::DenseMap<clang::BaseSubobject, unsigned long long, llvm::DenseMapInfo<clang::BaseSubobject> >, false>::grow(unsigned long) + 22379
> 18 clang 0x000000010ed2e7e4 void std::__1::vector<clang::CXXRecordDecl const*, std::__1::allocator<clang::CXXRecordDecl const*> >::__push_back_slow_path<clang::CXXRecordDecl const* const&>(clang::CXXRecordDecl const* const&&&) + 139348
> 19 clang 0x000000010eccc6c8 llvm::SmallVectorTemplateBase<llvm::DenseMap<clang::BaseSubobject, unsigned long long, llvm::DenseMapInfo<clang::BaseSubobject> >, false>::grow(unsigned long) + 16776
> 20 clang 0x000000010ea29443 std::__1::__tree<std::__1::__value_type<clang::edit::FileOffset, clang::edit::EditedSource::FileEdit>, std::__1::__map_value_compare<clang::edit::FileOffset, std::__1::__value_type<clang::edit::FileOffset, clang::edit::EditedSource::FileEdit>, std::__1::less<clang::edit::FileOffset>, true>, std::__1::allocator<std::__1::__value_type<clang::edit::FileOffset, clang::edit::EditedSource::FileEdit> > >::destroy(std::__1::__tree_node<std::__1::__value_type<clang::edit::FileOffset, clang::edit::EditedSource::FileEdit>, void*>*) + 7571
> 21 clang 0x000000010ea0167d void std::__1::vector<clang::FrontendInputFile, std::__1::allocator<clang::FrontendInputFile> >::__push_back_slow_path<clang::FrontendInputFile const&>(clang::FrontendInputFile const&&&) + 17821
> 22 clang 0x000000010e9c509a void std::__1::__tree_balance_after_insert<std::__1::__tree_node_base<void*>*>(std::__1::__tree_node_base<void*>*, std::__1::__tree_node_base<void*>*) + 4426
> 23 clang 0x000000010e9bcc9f
> 24 clang 0x000000010e9c2e2d void std::__1::vector<llvm::SourceMgr::SrcBuffer, std::__1::allocator<llvm::SourceMgr::SrcBuffer> >::__push_back_slow_path<llvm::SourceMgr::SrcBuffer const&>(llvm::SourceMgr::SrcBuffer const&&&) + 9181
> 25 libdyld.dylib 0x00007fff8ec625fd start + 1
> 26 libdyld.dylib 0x000000000000004a start + 1899616846
> Stack dump:
> 0. Program arguments: /Volumes/dev/devel/comx_p2020_linux_3_8_tools/bin/clang -cc1 -triple powerpc-unknown-linux -S -disable-free -main-file-name kevent.c -mrelocation-model pic -pic-level 2 -mdisable-fp-elim -fmath-errno -no-integrated-as -mconstructor-aliases -target-cpu ppc -target-linker-version 136 -g -coverage-file /var/folders/yb/mnfx7n_14xvdwy23w9f_wt9c0000gn/T/kevent-882b66.s -resource-dir /Volumes/dev/devel/comx_p2020_linux_3_8_tools/bin/../lib/clang/3.5.0 -D HAVE_CONFIG_H -D _XOPEN_SOURCE=600 -D PIC -I . -I ./src/common -I ./include -isysroot /devel/linux_sysroot_3.8 -internal-isystem /devel/linux_sysroot_3.8/usr/local/include -internal-isystem /Volumes/dev/devel/comx_p2020_linux_3_8_tools/bin/../lib/clang/3.5.0/include -internal-externc-isystem /devel/linux_sysroot_3.8/include -internal-externc-isystem /devel/linux_sysroot_3.8/usr/include -O2 -Wall -Wextra -Wno-missing-field-initializers -Werror -std=c99 -fno-dwarf-directory-asm -fdebug-compilation-dir /Volumes/Old_HD/media_store/Downloads/gcd/libkqueue-2.0.1 -ferror-limit 19 -fmessage-length 316 -fvisibility hidden -mstackrealign -fno-signed-char -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp -o /var/folders/yb/mnfx7n_14xvdwy23w9f_wt9c0000gn/T/kevent-882b66.s -x c src/common/kevent.c
> 1. <eof> parser at end of file
> 2. Code generation
> 3. Running pass 'Function Pass Manager' on module 'src/common/kevent.c'.
> 4. Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on function '@kevent_dump'
> clang: error: unable to execute command: Illegal instruction: 4
> clang: error: clang frontend command failed due to signal (use -v to see invocation)
> clang version 3.5.0 (trunk 205694)
> Target: powerpc-unknown-linux
> Thread model: posix
>
>
>
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