| Issue |
74103
|
| Summary |
Clang-18 crash when compiled with -fsanitize=dataflow -fwhole-program-vtables -flto -c
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
iamanonymouscs
|
Clang-18 with -fsanitize=dataflow -fwhole-program-vtables -flto -c crashes on the test case.
Compiler explorer: https://gcc.godbolt.org/z/vf5rGThx5
```
$cat mutant.c
typedef struct FILE { int i; } FILE;
#ifdef __cplusplus
extern "C"
#endif
int fprintf (FILE *, const char *, ...);
int
main ()
{
((void (*)()) fprintf) ();
return 0;
}
$clang-18 -fsanitize=dataflow -fwhole-program-vtables -flto -c mutant.c
PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: clang-18 -fsanitize=dataflow -fwhole-program-vtables -flto -c mutant.c
1. <eof> parser at end of file
2. Optimizer
#0 0x00007f18cec7e266 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0xd2b266)
#1 0x00007f18cec7c170 llvm::sys::RunSignalHandlers() (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0xd29170)
#2 0x00007f18cec7d8c4 llvm::sys::CleanupOnSignal(unsigned long) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0xd2a8c4)
#3 0x00007f18cebcbbb0 (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0xc78bb0)
#4 0x00007f18d975f980 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x12980)
#5 0x00007f18cf707846 (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0x17b4846)
#6 0x00007f18cf7071fc (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0x17b41fc)
#7 0x00007f18cf6e796e (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0x179496e)
#8 0x00007f18cf6e1942 llvm::BitcodeWriter::writeModule(llvm::Module const&, bool, llvm::ModuleSummaryIndex const*, bool, std::array<unsigned int, 5ul>*) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0x178e942)
#9 0x00007f18cf6ebe35 llvm::WriteBitcodeToFile(llvm::Module const&, llvm::raw_ostream&, bool, llvm::ModuleSummaryIndex const*, bool, std::array<unsigned int, 5ul>*) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0x1798e35)
#10 0x00007f18cf70b999 llvm::BitcodeWriterPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0x17b8999)
#11 0x00007f18d747326d (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x1af026d)
#12 0x00007f18cedf8864 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0xea5864)
#13 0x00007f18d7467d43 (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x1ae4d43)
#14 0x00007f18d7460d52 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream>>) (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x1addd52)
#15 0x00007f18d77f75fe (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x1e745fe)
#16 0x00007f18d6413866 clang::ParseAST(clang::Sema&, bool, bool) (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0xa90866)
#17 0x00007f18d826b645 clang::FrontendAction::Execute() (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x28e8645)
#18 0x00007f18d81e9cc4 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x2866cc4)
#19 0x00007f18d82e61c0 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x29631c0)
#20 0x000056146e380837 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/usr/lib/llvm-18/bin/clang+0x13837)
#21 0x000056146e37d905 (/usr/lib/llvm-18/bin/clang+0x10905)
#22 0x00007f18d7e81909 (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x24fe909)
#23 0x00007f18cebcb94c llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/usr/lib/llvm-18/bin/../lib/libLLVM-18.so.1+0xc7894c)
#24 0x00007f18d7e812ae clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x24fe2ae)
#25 0x00007f18d7e490f1 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x24c60f1)
#26 0x00007f18d7e4933e clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x24c633e)
#27 0x00007f18d7e6539c clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/usr/lib/llvm-18/bin/../lib/libclang-cpp.so.18+0x24e239c)
#28 0x000056146e37d25c clang_main(int, char**, llvm::ToolContext const&) (/usr/lib/llvm-18/bin/clang+0x1025c)
#29 0x000056146e38af32 main (/usr/lib/llvm-18/bin/clang+0x1df32)
#30 0x00007f18cd162c87 __libc_start_main /build/glibc-CVJwZb/glibc-2.27/csu/../csu/libc-start.c:344:0
#31 0x000056146e37a1ea _start (/usr/lib/llvm-18/bin/clang+0xd1ea)
clang-18: error: clang frontend command failed with exit code 139 (use -v to see invocation)
Ubuntu clang version 18.0.0 (++20231018091808+48a53509e851-1~exp1~20231018091910.1571)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
clang-18: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-18: note: diagnostic msg: /tmp/mutant-39b2dc.c
clang-18: note: diagnostic msg: /tmp/mutant-39b2dc.sh
clang-18: note: diagnostic msg:
********************
```
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