tree 20338e8c6c370f665827cea887f2829794391e3e
parent 5762f66288e918bb4e585bd02dbaa8a37f140c91
author Gabe Black <gabe.black@gmail.com> 1639285984 -0800
committer Gabe Black <gabe.black@gmail.com> 1639427511 +0000

arch,sim-se: Handle syscall retry/suppression in the syscall desc.

Rather than make each ISA include boilerplate to ignore a
SyscallReturn's value when it's marked as suppressed or needing a retry,
put that code into the SyscallDesc::doSyscall method instead.

That has two benefits. First, it removes a decent amount of code
duplication which is nice from a maintenance perspective. Second, it
puts the SyscallDesc in charge of figuring out what to do once a system
call implementation finishes. That will let it schedule a retry of the
system call for instance, without worrying about what the ISA is doing
with the SyscallReturn behind its back.

Jira Issue: https://gem5.atlassian.net/browse/GEM5-1123

Change-Id: I3732a98c8e0d0b2b94d61313960aa0782c0b971f
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/54023
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>