arch-x86,sim: Implement sched_getaffinity
sched_getaffinity is different from other syscalls in the raw syscall
return the size of the cpumask being used to represent the CPU bit mask.
Because of this, when a library (libnuma in this case) directly called
sched_getaffinity and got a return value of 0, it errored out, thinking
that there were no CPUs available.
This implementation assumes that all CPUs are available, so it sets
all simulated CPUs in the bitmask
Change-Id: Id95c919986cc98a411877056256604f57a29f0f9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/46243
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Matt Sinclair <mattdsinclair@gmail.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
2 files changed
