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I remember the time when modifying running programs were a big rage. Now seems many OSs are going in the opposite direction with OpenBSD leading the race.
by jmclnx 4y ago
I remember the time when modifying running programs were a big rage. Now seems many OSs are going in the opposite direction with OpenBSD leading the race.
- baabaloo 4y agoIt's a security vulnerability tbh
- addaon 4y agoIs OpenBSD moving away from program loading and dynamic linking? Even many embedded systems allow software updates these days…
- jmclnx 4y agoWhat I am referring to is not dynamic linking, but something else. My memory of that is rather faded and I only remember seeing in in various docs something like 40 years ago
- addaon 4y agoDynamic linking is by far the dominant use of self-modifying code these days, followed shortly by JIT code generation.
- flangola7 4y agoWhat is OpenBSD pivoting towards? Immutable images?
- deanmen 4y agoHe's probably referring to the W^X (write xor execute) feature of OpenBSD https://en.wikipedia.org/wiki/W%5EX https://en.wikipedia.org/wiki/W%5EX http://www.openbsd.org/papers/ven05-deraadt/mgp00009.html http://www.openbsd.org/papers/ven05-deraadt/mgp00009.html