invalid system call on Android

Jason Hussey jasonhussey at
Tue Sep 21 18:54:35 UTC 2021


I'm getting an invalid system call error message on a rooted Android phone
which I cross-compiled strace for. I can use these exact commands on a
different rooted phone, so is the difference here kernel related? Are
certain system calls just unexposed in different kernel versions?

surya:/ # strace -f -p 11157 -e trace=%net
strace: invalid system call '%net'

surya:/ # strace -f -p 11157 -e decode-fds=socket
strace: invalid system call 'decode-fds=socket'

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