There are many SE mode system calls that are implemented in src/sim/syscall_emul.cc or src/sim/syscall_emul.hh. And they work well under X86 and ARM platforms. However, they are not supported in se_workload.cc under the RISC-V platform. This patch adds support for all the system calls already implemented in syscall_emul.hh/cc to the RISC-V platform (in arch/riscv/linux/se_workload.cc). Change-Id: Ia47c3c113767b50412b1c8ade3c1047c894376cf Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/54803 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu>