gem5: support variants

fs-biglittle

@@ -1,13 +1,13 @@
 #!/usr/bin/env bash
-gem5_out_dir="$(pwd)/out/common/gem5"
-buildroot_out_dir="$(pwd)/out/aarch64/buildroot"
-M5_PATH="${gem5_out_dir}/system" \
-  "${gem5_out_dir}/build/ARM/gem5.opt" \
-  ./gem5/gem5/configs/example/arm/fs_bigLITTLE.py \
+. common
+set_common_vars -L "${common_linux_variant}" -M "${common_gem5_variant}" aarch64 true
+M5_PATH="${common_gem5_system_dir}" \
+  "${common_gem5_build_dir}/ARM/gem5.opt" \
+  "${common_gem5_default_src_dir}/configs/example/arm/fs_bigLITTLE.py" \
   --big-cpus=2 \
   --caches \
-  --disk="${buildroot_out_dir}/images/rootfs.ext2" \
-  --dtb "${gem5_out_dir}/system/arm/dt/armv8_gem5_v1_big_little_2_2.dtb" \
-  --kernel="${buildroot_out_dir}/build/linux-custom/vmlinux" \
+  --disk="${common_images_dir}/rootfs.ext2" \
+  --dtb "${common_gem5_system_dir}/arm/dt/armv8_gem5_v1_big_little_2_2.dtb" \
+  --kernel="${common_vmlinux}" \
   --little-cpus=2 \
 ;