TODO(lowRISC/opentitan#12504): update instructions for Bazel builds.
To build CoreMark under meson:
cd "${REPO_TOP}" ./meson_init.sh ninja -C build-out sw/device/benchmarks/coremark/coremark_export_${DEVICE}
Where ${DEVICE} is one of ‘sim_verilator’ or ‘fpga_cw310’
This will give you a .bin and .elf file (suitable for either opentitantool or giving directly to --meminit for Verilator) which can be found in build-bin/sw/device/fpga/benchmarks/coremark
The meson build script alters ITERATIONS (specifying how many iterations CoreMark does) depending on whether it is a sim-verilator or an fpga build. 1 iteration is used for sim-verilator, 100 for fpga.
The meson script is hardcoded to give PERFORMANCE_RUN with TOTAL_DATA_SIZE=2000. These are settings required for reportable CoreMark figures. If you wish to use other options please alter sw/device/benchmarks/coremark/meson.build appropriately. See the CoreMark README in sw/vendor/eembc_coremark/README.md for further information on the possibilities.