-RISCV_GCC_OPTS = -std=gnu99 -DSET_STATS -O2 -nostdlib -nostartfiles -ffast-math
-RISCV_LINK = riscv-gcc -T $(bmarkdir)/common/test.ld
+RISCV_GCC_OPTS = -Wa,-march=RVIMAFDXhwacha -std=gnu99 -O2 -ffast-math
+RISCV_LINK = riscv-gcc -T $(bmarkdir)/common/test.ld $(incs)