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nfil.dev
| | blog.tst.sh
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| | The goal is to implement functioning kernel virtual memory management, and use it to implement syscalls such as fork.
| | xcellerator.github.io
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| | Okay, so you've built your first kernel module, but now you want to make it do something cool - something like altering the behaviour of the running kernel. The way we do this is by function hooking, but the question is - how do we know which functions to hook? Luckily for us, there is already a great list of potential targets: syscalls! Syscalls (or system calls) are kernel functions that can be called from userspace, and are required for almost anything remotely interesting.
| | bootlin.com
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| | shellsharks.com
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| An introduction to x86 Intel assembly.