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Friday, September 29 • 4:45pm - 5:45pm
My Little Object File: How Linkers Implement C++

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Ever wonder how the linker turns your compiled C++ code into an executable file? Why the One Definition Rule exists? Or why your debug builds are so large? In this talk we'll take a deep dive and follow the story of our three adventurers, ELF, MachO, and COFF as they make their way out of Objectville carrying C++ translation units on their backs as they venture to become executables. We'll see as they make their way through the tangled forests of name mangling, climb the cliffs of thread local storage, and wade through the bogs of debug info. We'll see how they mostly follow the same path, but each approach the journey in their own way. 

We'll also see that becoming an executable is not quite the end of their journey, as the dynamic linker awaits to bring them to yet a higher plane of existence as complete C++ programs running on a machine. 

Speakers
MS

Michael Spencer

Compiler Engineer, Sony Interactive Entertainment
Michael Spencer is a Compiler Engineer at Sony Interactive Entertainment where he has spent 6 years works on PlayStation's C++ toolchain. He is an active member of the LLVM community focusing on object files and linkers. He also serves as Sony's representative to the ISO C++ stan... Read More →


Friday September 29, 2017 4:45pm - 5:45pm
Colossus Theater Meydenbauer Center