[PATCH] D86694: [scudo] Allow -fsanitize=scudo on Linux and Windows (WIP, don't land as is)

[Russell Gallop via Phabricator via cfe-commits]

russell.gallop added a comment.

I managed to get this to fail in the debugger (for the cross-module-sm-pic-a.ll test):

   	000001655e9d001e()	Unknown
   	000001655e9d0019()	Unknown
   	0000017e5eb6b410()	Unknown
   	0000017c5eb63810()	Unknown
   	0000017e5eb6b410()	Unknown
   	0000017e5eb6b410()	Unknown
   	0000016f5eb65b58()	Unknown
  >	lli.exe!llvm::MCJIT::runFunction(llvm::Function * F, llvm::ArrayRef<llvm::GenericValue> ArgValues) Line 578	C++
   	lli.exe!llvm::ExecutionEngine::runFunctionAsMain(llvm::Function * Fn, const std::vector<std::string,std::allocator<std::string>> & argv, const char * const * envp) Line 467	C++
   	lli.exe!main(int argc, char * * argv, char * const * envp) Line 646	C++
   	[Inline Frame] lli.exe!invoke_main() Line 78	C++
   	lli.exe!__scrt_common_main_seh() Line 288	C++
   	kernel32.dll!00007ffd145a7034()	Unknown
   	ntdll.dll!00007ffd1657d0d1()	Unknown

It appears to be failing within the interpreted code. Maybe this is a problem between the memory allocator and the Memory Manager.

I tried running these tests repeatedly with scudo (sanitizer) on Linux but didn't see it fail. I also tried repeating these tests with rpmalloc on Windows and didn't see the failures so it does appear to be specific to scudo on Windows. I'll keep investigating.


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  https://reviews.llvm.org/D86694/new/

https://reviews.llvm.org/D86694