ANDROID: build: Merge multiple vm images into one

Add a new vm target which combines all the vm target
images into one. This way it will be easier to test
all the vm's at once.

Change-Id: I7c4ffa6f7360ad2e183d48b47683e7270bf9917e
Signed-off-by: Vamsi Krishna Lanka <quic_vamslank@quicinc.com>

msm_platforms.bzl

@@ -4,6 +4,7 @@ load(":kalama_oemvm.bzl", "define_kalama_oemvm")
 load(":pineapple.bzl", "define_pineapple")
 load(":pineapple_tuivm.bzl", "define_pineapple_tuivm")
 load(":pineapple_oemvm.bzl", "define_pineapple_oemvm")
+load(":pineapple_vms.bzl", "define_pineapple_vms")
 load(":pineapple_allyes.bzl", "define_pineapple_allyes")
 load(":msm_common.bzl", "define_signing_keys")
 load("//build:msm_kernel_extensions.bzl", "define_top_level_rules")
@@ -18,3 +19,4 @@ def define_msm_platforms():
     define_pineapple_tuivm()
     define_pineapple_oemvm()
     define_pineapple_allyes()
+    define_pineapple_vms()

pineapple_vms.bzl

@@ -0,0 +1,92 @@
+load(":target_variants.bzl", "vm_types", "vm_variants")
+load("//msm-kernel:msm_common.bzl", "get_out_dir")
+load("//build/bazel_common_rules/dist:dist.bzl", "copy_to_dist_dir")
+load(":image_opts.bzl", "vm_image_opts")
+
+target_name = "pineapple-vms"
+
+def create_combined_vm_image(image_list, variant, vm_size_ext4):
+    out_files = [
+        "{}_{}/vm-bootsys.img".format(target_name, variant),
+        "{}_{}/vm-bootsys_unsparsed.img".format(target_name, variant),
+        "{}_{}/vm-images".format(target_name, variant),
+    ]
+
+    merge_images = "\nimage_dist=\"{}\"\n".format(" ".join(["$(location {})".format(l) for l in image_list]))
+    merge_images += "vm_image_out_path=\"$(location {})\"\n".format(out_files[0])
+    merge_images += "vm_image_unsparsed_out_path=\"$(location {})\"\n".format(out_files[1])
+    merge_images += "vm_images_out_path=\"$(location {})\"\n".format(out_files[2])
+    merge_images += """
+    mkdir -p scratch
+    for dist in $$image_dist; do
+      # Unpack everything from tuivm
+      if echo $$dist | grep -q "tuivm"; then
+          tar -C scratch/ -xf "$$dist"
+      # Only unpack boot for all other VMs
+      else
+        tar -C scratch/ --wildcards -xf "$$dist" "./vm-images/*/boot"
+      fi
+    done
+
+    # Remove existing vm-bootsys images
+    rm -f scratch/*.img
+
+    # Create non-sparse vm-bootsys.img
+    $(location //prebuilts/kernel-build-tools:linux-x86/bin/mkuserimg_mke2fs) \
+            "scratch/vm-images" "$$vm_image_unsparsed_out_path" ext4 / {vm_size_ext4}
+
+    # Create sparse vm-bootsys.img
+    $(location //prebuilts/kernel-build-tools:linux-x86/bin/img2simg) \
+            "$$vm_image_unsparsed_out_path" "$$vm_image_out_path"
+
+    cp -r "scratch/vm-images" "$$vm_images_out_path"
+    """.format(vm_size_ext4=vm_size_ext4)
+
+    native.genrule(
+        name = "{}_{}_combo".format(target_name, variant),
+        srcs = image_list,
+        outs = out_files,
+        tools = [
+            "//prebuilts/kernel-build-tools:linux-x86/bin/mkuserimg_mke2fs",
+            "//prebuilts/kernel-build-tools:linux-x86/bin/img2simg",
+        ],
+        cmd_bash = merge_images,
+    )
+
+def define_pineapple_vms(vm_image_opts = vm_image_opts()):
+    base_target = "pineapple-tuivm"
+    for variant in vm_variants:
+        base_tv = "{}_{}".format(base_target, variant)
+        image_list = [":pineapple-{}_{}_vm_images".format(vt, variant) for vt in vm_types]
+        create_combined_vm_image(image_list, variant, vm_image_opts.vm_size_ext4)
+
+        out_dtb_list = [":pineapple-{}_{}_vm_dtb_img".format(vt, variant) for vt in vm_types]
+
+        dist_targets = [
+            # do not sort
+            ":{}".format(base_tv),
+            ":{}_images".format(base_tv),
+            ":{}_merged_kernel_uapi_headers".format(base_tv),
+            ":{}_build_config".format(base_tv),
+            ":signing_key",
+            ":verity_key",
+            "{}_{}_combo".format(target_name, variant),
+        ] + out_dtb_list
+
+        copy_to_dist_dir(
+            name = "{}_{}_dist".format(target_name, variant),
+            data = dist_targets,
+            dist_dir = "{}/dist".format(get_out_dir(target_name, variant)),
+            flat = True,
+            wipe_dist_dir = True,
+            allow_duplicate_filenames = True,
+            mode_overrides = {
+                # do not sort
+                "**/vmlinux": "755",
+                "**/Image": "755",
+                "**/*.dtb*": "755",
+                "**/gen_init_cpio": "755",
+                "**/sign-file": "755",
+                "**/*": "644",
+            },
+        )