[llvm-bugs] [Bug 49198] New: Wrong usage of __dso_handle in user code leads to a compiler crash.

via llvm-bugs llvm-bugs at lists.llvm.org
Mon Feb 15 13:13:46 PST 2021


https://bugs.llvm.org/show_bug.cgi?id=49198

            Bug ID: 49198
           Summary: Wrong usage of __dso_handle in user code leads to a
                    compiler crash.
           Product: new-bugs
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: alebedev at accesssoftek.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

Created attachment 24532
  --> https://bugs.llvm.org/attachment.cgi?id=24532&action=edit
Preprocessed source and associated run script.

When trying to compile the following code

class a {
public:
  ~a();
} b;
void *__dso_handle = &__dso_handle;

clang crashes:

Global variable initializer type does not match global variable type!
i8** @__dso_handle
fatal error: error in backend: Broken module found, compilation aborted!
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash
backtrace, preprocessed source, and associated run script.
Stack dump:
0.      Program arguments: ./build/bin/clang++ -c dso-handle-crash.cpp
1.      <eof> parser at end of file
2.      Per-function optimization
 #0 0x0000562a31b1421e llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
llvm-project/llvm/lib/Support/Unix/Signals.inc:565:22
 #1 0x0000562a31b142d9 PrintStackTraceSignalHandler(void*)
llvm-project/llvm/lib/Support/Unix/Signals.inc:632:1
 #2 0x0000562a31b11f4f llvm::sys::RunSignalHandlers()
llvm-project/llvm/lib/Support/Signals.cpp:71:20
 #3 0x0000562a31b13a3f llvm::sys::CleanupOnSignal(unsigned long)
llvm-project/llvm/lib/Support/Unix/Signals.inc:361:31
 #4 0x0000562a31a444a0 (anonymous
namespace)::CrashRecoveryContextImpl::HandleCrash(int, unsigned long)
llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:75:5
 #5 0x0000562a31a44c52 llvm::CrashRecoveryContext::HandleExit(int)
llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:442:3
 #6 0x0000562a31b0d3e3 llvm::sys::Process::Exit(int, bool)
llvm-project/llvm/lib/Support/Process.cpp:100:3
 #7 0x0000562a2ea34193 ensureStackAddressSpace()
llvm-project/clang/tools/driver/cc1_main.cpp:132:39
 #8 0x0000562a31a4cdff llvm::report_fatal_error(llvm::Twine const&, bool)
llvm-project/llvm/lib/Support/ErrorHandling.cpp:108:36
 #9 0x0000562a31a4cc95
llvm::report_fatal_error(std::__cxx11::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, bool)
llvm-project/llvm/lib/Support/ErrorHandling.cpp:86:77
#10 0x0000562a31075cd1 (anonymous
namespace)::VerifierLegacyPass::doFinalization(llvm::Module&)
llvm-project/llvm/lib/IR/Verifier.cpp:5678:12
#11 0x0000562a30fb49a1 llvm::FPPassManager::doFinalization(llvm::Module&)
llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1503:13
#12 0x0000562a30faf571
llvm::legacy::FunctionPassManagerImpl::doFinalization(llvm::Module&)
llvm-project/llvm/lib/IR/LegacyPassManager.cpp:339:13
#13 0x0000562a30fb41c2 llvm::legacy::FunctionPassManager::doFinalization()
llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1370:1
#14 0x0000562a31efa7fc (anonymous
namespace)::EmitAssemblyHelper::EmitAssembly(clang::BackendAction,
std::unique_ptr<llvm::raw_pwrite_stream,
std::default_delete<llvm::raw_pwrite_stream> >)
llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1001:55
#15 0x0000562a31efea57 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> >)
llvm-project/clang/lib/CodeGen/BackendUtil.cpp:1596:27
#16 0x0000562a331d1ebc
clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&)
llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:344:24
#17 0x0000562a34c90efd clang::ParseAST(clang::Sema&, bool, bool)
llvm-project/clang/lib/Parse/ParseAST.cpp:178:14
#18 0x0000562a3280186b clang::ASTFrontendAction::ExecuteAction()
llvm-project/clang/lib/Frontend/FrontendAction.cpp:1056:11
#19 0x0000562a331ce828 clang::CodeGenAction::ExecuteAction()
llvm-project/clang/lib/CodeGen/CodeGenAction.cpp:1083:5
#20 0x0000562a3280112a clang::FrontendAction::Execute()
llvm-project/clang/lib/Frontend/FrontendAction.cpp:953:38
#21 0x0000562a327590b8
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
llvm-project/clang/lib/Frontend/CompilerInstance.cpp:957:42
#22 0x0000562a3299b8c3
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
llvm-project/clang/lib/FrontendTool/ExecuteCompilerInvocation.cpp:278:38
#23 0x0000562a2ea349bf cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) llvm-project/clang/tools/driver/cc1_main.cpp:240:40
#24 0x0000562a2ea2889e ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
llvm-project/clang/tools/driver/driver.cpp:330:20
#25 0x0000562a3264648d
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const::'lambda'()::operator()() const
llvm-project/clang/lib/Driver/Job.cpp:404:32
#26 0x0000562a32646d50 void llvm::function_ref<void
()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const::'lambda'()>(long)
llvm-project/llvm/include/llvm/ADT/STLExtras.h:186:40
#27 0x0000562a31a37850 llvm::function_ref<void ()>::operator()() const
llvm-project/llvm/include/llvm/ADT/STLExtras.h:209:62
#28 0x0000562a31a44bec
llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>)
llvm-project/llvm/lib/Support/CrashRecoveryContext.cpp:425:10
#29 0x0000562a3264669c
clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optional<llvm::StringRef>
>, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >*, bool*) const
llvm-project/clang/lib/Driver/Job.cpp:404:7
#30 0x0000562a325f6a4c
clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&,
clang::driver::Command const*&) const
llvm-project/clang/lib/Driver/Compilation.cpp:195:22
#31 0x0000562a325f6dd4
clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const
llvm-project/clang/lib/Driver/Compilation.cpp:248:53
#32 0x0000562a32606baa
clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&,
llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&)
llvm-project/clang/lib/Driver/Driver.cpp:1517:28
#33 0x0000562a2ea298bf main llvm-project/clang/tools/driver/driver.cpp:502:39
#34 0x00007fdccc81c0b3 __libc_start_main
/build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:342:3
#35 0x0000562a2ea26f3e _start (./build/bin/clang+++0x2d64f3e)
clang-12: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 12.0.0 (https://github.com/llvm/llvm-project.git
c9439ca36342fb6013187d0a69aef92736951476)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: ./build/bin
clang-12: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-12: note: diagnostic msg: /tmp/dso-handle-crash-9a5489.cpp
clang-12: note: diagnostic msg: /tmp/dso-handle-crash-9a5489.sh
clang-12: note: diagnostic msg: 

********************

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