“Everything You Ever Wanted to Know about DLLs”
summary
Builds a tiny Hello.dll and PrintGreeting.exe to show exactly what ends up in a Windows PE: DOS stub, COFF header, sections (.text, .rdata), export directory and relocations, inspected with dumpbin and a hex editor; LoadLibrary/GetProcAddress and implicit linking via Hello.lib are demonstrated and the demo runs. Loader behavior (search order, known DLLs, ASLR, relocations), loader steps (map, relocate, bind imports, call DllMain) and diagnostics with Gflags are detailed; advice: use .def for stable exports and avoid exposing C++ ABI.
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chapters (8)
- 0:00Introduction to DLLs
- 1:05Building and using a DLL
- 8:33What's inside a DLL file
- 22:46Exporting functions from DLLs
- 35:31Loading a DLL into memory
- 43:43Debugging DLL loading failures
- 50:33C++ and DLLs
- 1:00:00Q&A session
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