# Copyright 2018 The Fuchsia Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/components.gni")
import("//src/graphics/lib/gbm/gbm.gni")
import("//src/virtualization/buildtools/linux_paths.gni")
import("//src/virtualization/buildtools/romfs_image.gni")

extras_image = "$target_out_dir/linux/extras.img"
resource("extras_img") {
  sources = [ extras_image ]
  outputs = [ "data/{{source_file_part}}" ]
}

declare_args() {
  # Default values for the guest network configuration.
  #
  # These are currently hard-coded to match what is setup in the virtio-net
  # device.
  #
  # See //src/virtualization/bin/vmm/device/virtio_net.cc for more details.
  linux_runner_ip = "10.0.0.2"
  linux_runner_gateway = "10.0.0.1"
  linux_runner_netmask = "255.255.255.0"

  # If `true`, adds additional testonly content to extras.img, which will be
  # built and mounted inside the container at /mnt/chromeos.
  linux_runner_extras_tests = false

  # If `true`, all block devices that would normally load as READ_WRITE will
  # be loaded as VOLATILE_WRITE. This is useful when working on changes to
  # the linux kernel as crashes and panics can sometimes corrupt the images.
  linux_runner_volatile_block = false

  # Point this to the location of external files to be included as extras
  linux_runner_user_extras = []
}

config("linux_runner_net_config") {
  defines = [
    "LINUX_RUNNER_IP_DEFAULT=\"" + linux_runner_ip + "\"",
    "LINUX_RUNNER_GATEWAY_DEFAULT=\"" + linux_runner_gateway + "\"",
    "LINUX_RUNNER_NETMASK_DEFAULT=\"" + linux_runner_netmask + "\"",
  ]
}

source_set("lib") {
  sources = [
    "crash_listener.h",
    "guest.cc",
    "guest.h",
    "linux_component.cc",
    "linux_component.h",
    "linux_runner.cc",
    "linux_runner.h",
    "log_collector.cc",
    "log_collector.h",
    "ports.h",
  ]
  public_configs = [ ":linux_runner_net_config" ]
  public_deps = [
    "//sdk/fidl/fuchsia.sys",
    "//sdk/fidl/fuchsia.ui.app",
    "//sdk/fidl/fuchsia.virtualization",
    "//sdk/fidl/fuchsia.wayland",
    "//sdk/lib/fit-promise",
    "//sdk/lib/sys/cpp",
    "//sdk/lib/virtualization",
    "//src/lib/fsl",
    "//src/lib/fxl",
    "//src/lib/storage/vfs/cpp",
    "//src/virtualization/lib/grpc",
    "//src/virtualization/lib/guest_config",
    "//src/virtualization/packages/biscotti_guest/third_party/protos:vm_cc_proto",
    "//third_party/grpc:grpc++",
    "//third_party/protobuf:protobuf_lite",
    "//zircon/public/lib/async-cpp",
    "//zircon/system/ulib/async-loop:async-loop-cpp",
    "//zircon/system/ulib/async-loop:async-loop-default",
    "//zircon/system/ulib/fzl",
    "//zircon/system/ulib/trace-provider:trace-provider-with-fdio",
  ]
  if (linux_runner_volatile_block) {
    defines = [ "USE_VOLATILE_BLOCK" ]
  }
}

icd_filename = "libvulkan_intel.so"
icd_manifest = "${target_gen_dir}/magma.json"

action("icd_manifest") {
  visibility = [ ":*" ]
  script = "//src/graphics/lib/magma/scripts/gen_icd_manifest.sh"
  args = [
    "${icd_filename}",
    rebase_path(icd_manifest, root_build_dir),
  ]
  outputs = [ icd_manifest ]
}

romfs_image("extras") {
  deps = [
    ":extras_img",
    ":icd_manifest",
    "//src/lib/vulkan:vulkan_headers_and_loader(${linux_lib_toolchain})",
  ]

  inputs = [
    "${icd_manifest}",
    "${linux_lib_path}/libvulkan.so",  # Vulkan Loader
  ]

  if (linux_runner_extras_tests) {
    testonly = true

    deps += [
      "//src/graphics/examples:vkcube-on-wayland(${linux_exe_toolchain})",
      "//src/graphics/lib/gbm",
      "//src/graphics/lib/magma/tests/integration:virtmagma_abi_conformance_tests(${linux_exe_toolchain})",
      "//src/graphics/lib/magma/tests_linux/unit_tests:virtmagma_image_tests(${linux_exe_toolchain})",
      "//src/graphics/lib/magma/tests_linux/unit_tests:virtmagma_unit_tests_linux(${linux_exe_toolchain})",
      "//src/graphics/lib/magma/tests_linux/unit_tests:virtmagma_vulkan_unit_tests(${linux_exe_toolchain})",
      "//src/graphics/tests/vkgbm(${linux_exe_toolchain})",
      "//src/lib/vulkan:vulkaninfo(${linux_exe_toolchain})",
    ]

    inputs += [
      "${linux_exe_path}/virtmagma_unit_tests_linux",
      "${linux_exe_path}/virtmagma_vulkan_unit_tests",
      "${linux_exe_path}/virtmagma_abi_conformance_tests",
      "${linux_exe_path}/cube-wayland",
      "${linux_exe_path}/vulkaninfo",
      "${linux_exe_path}/virtmagma_image_tests",
      "${linux_exe_path}/vkgbm",
      "${gbm_lib_path}",
    ]

    inputs += linux_runner_user_extras
  }

  if (current_cpu == "x64") {
    deps += [ "//third_party/mesa/src/intel/vulkan:vulkan_intel(${linux_lib_toolchain})" ]

    inputs += [ "${linux_lib_path}/${icd_filename}" ]
  }

  output = extras_image
}

executable("bin") {
  output_name = "linux_runner"

  sources = [ "main.cc" ]

  deps = [ ":lib" ]
}

fuchsia_package_with_single_component("linux_runner") {
  if (linux_runner_extras_tests) {
    testonly = true
  }

  deps = [
    ":bin",
    ":extras",
  ]

  manifest = "meta/linux_runner.cmx"
}

executable("linux_runner_unittests") {
  visibility = [ ":*" ]
  testonly = true

  sources = [ "guest_unittest.cc" ]

  deps = [
    ":lib",
    "//garnet/public/lib/gtest",
    "//sdk/lib/sys/cpp/testing:unit",
    "//sdk/lib/virtualization/testing",
    "//src/lib/fxl/test:gtest_main",
    "//src/storage/memfs",
  ]
}

fuchsia_unittest_package("linux_runner_tests") {
  deps = [ ":linux_runner_unittests" ]

  test_specs = {
    environments = basic_envs
  }
}