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LLD on 32-bit Windows would frequently fail on large projects with an exception "thread constructor failed: Exec format error". The stack trace pointed to this usage of std::async, and looking at the implementation in libc++ it seems using std::async with std::launch::async results in the immediate creation of a new thread for every call. This could result in a potentially unbounded number of threads, depending on the number of input files. This seems to be hitting some limit in 32-bit Windows host. I took the easy route, and only use threads on 64-bit Windows, not all Windows as before. I was thinking a more proper solution might involve using a thread pool rather than blindly spawning any number of new threads, but that may have other unforeseen consequences. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D105506 |
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| .. | ||
| CallGraphSort.cpp | ||
| CallGraphSort.h | ||
| Chunks.cpp | ||
| Chunks.h | ||
| CMakeLists.txt | ||
| Config.h | ||
| DebugTypes.cpp | ||
| DebugTypes.h | ||
| DLL.cpp | ||
| DLL.h | ||
| Driver.cpp | ||
| Driver.h | ||
| DriverUtils.cpp | ||
| ICF.cpp | ||
| ICF.h | ||
| InputFiles.cpp | ||
| InputFiles.h | ||
| LLDMapFile.cpp | ||
| LLDMapFile.h | ||
| LTO.cpp | ||
| LTO.h | ||
| MapFile.cpp | ||
| MapFile.h | ||
| MarkLive.cpp | ||
| MarkLive.h | ||
| MinGW.cpp | ||
| MinGW.h | ||
| Options.td | ||
| PDB.cpp | ||
| PDB.h | ||
| README.md | ||
| Symbols.cpp | ||
| Symbols.h | ||
| SymbolTable.cpp | ||
| SymbolTable.h | ||
| TypeMerger.h | ||
| Writer.cpp | ||
| Writer.h | ||
See docs/NewLLD.rst