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linux-kernel system-calls

Do system call tables in Linux change over time?

发布于 2020-11-30 02:28:40

Specifically, for x86 64-bit architecture, will the syscall table ever change? For instance, could there be additions of new syscalls or relocations of certain syscalls? I am fairly new to the concept and was wondering about this.

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doodsy
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Joseph Sible-Reinstate Monica 2020-11-30 12:14:21

New syscalls will be added, but existing ones won't be renumbered or removed, as doing so would break userspace programs, which Linus is famously dead-set against ever doing.

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