[rfc] new generic ptrace api for setting syscall info

Mike Frysinger vapier at gentoo.org
Mon Oct 25 02:53:53 UTC 2021

PTRACE_GET_SYSCALL_INFO is great for writing a generalized tracer -- no need to
write a per-arch ptrace call or register inspector.  unfortunately, there is no
converse to this operation: setting the syscall number, args, return, or error.
has there been any discussion for implementing this already ?

starting with this group as it's realistically the most active user of ptrace,
and i don't think there's any kernel group covering it specifically.
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