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* Don't write a test program that prints out the values of an internal table. | * Don't write a test program that prints out the values of an internal table. | ||
* Don't disassemble Microsoft code. | * Don't disassemble Microsoft code. | ||
* Don't look at any Microsoft source code. (e.g. don't look at the C runtime library source code that ships with their C compiler.) | * Don't look at any Microsoft source code, even if it's made "public" under some license. (e.g. don't look at the C runtime library source code that ships with their C compiler.) | ||
* Don't use +relay with native components. In general, try to avoid debugging with native components, as that leaks information about what function calls those components make. | |||
* Don't examine debug symbols for Microsoft code. | |||
=== Quotes === | === Quotes === |
Revision as of 18:47, 23 April 2020
Wine developers often run into undocumented behavior or interfaces in Windows. When this happens, they use clean-room design techniques to work around the problem without infringing on any Microsoft copyrights.
Do
Here are some techniques believed to be safe for Wine contributors:
- When trying to understand a Windows API function, write a test program that verifies its behavior, and contribute it to Wine's conformance test suite.
- It's also ok to look at MSDN (but take it with a grain of salt).
- But play it safe - if a test program will do, don't look at any Microsoft doc or headers.
- When in doubt, ask on the wine-devel mailing list!
Don't
Here's a short list of things for Wine contributors to avoid. It is by no means a complete list; all contributors need to be thoughtful about copyrights and avoid violating any law.
- Don't write a test program that prints out the values of an internal table.
- Don't disassemble Microsoft code.
- Don't look at any Microsoft source code, even if it's made "public" under some license. (e.g. don't look at the C runtime library source code that ships with their C compiler.)
- Don't use +relay with native components. In general, try to avoid debugging with native components, as that leaks information about what function calls those components make.
- Don't examine debug symbols for Microsoft code.
Quotes
Henri Verbeet
"For what it's worth, the policy I've personally been using has been to simply avoid unnecessary risk."