zircon/system/utest/mexec/BUILD.gn

# Copyright 2019 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("$zx/public/gn/resource.gni")
import("$zx/public/gn/test/zbi_test.gni")

# Pick out the tests.
group("mexec") {
  testonly = true
  deps = [
    ":zbi-child-image",
    ":zbi-parent-image",
  ]
}

### Defines the child.

# A test binary that returns success unconditionally. This binary running at
# all indicates that the system booted sufficiently to run a userspace process.
zx_test("zbi-child") {
  test_group = "core"
  sources = [ "success.cc" ]
  deps = [ "$zx/system/ulib/zircon" ]
}

# The parent binary mexecs into this child image. The parent image is booted
# with kernel.mexec-force-high-ramdisk=true meaning that it will place the child
# image's ramdisk in high (>4GiB) memory.
zbi_test("zbi-child-image") {
  assert(current_cpu != "")

  args = [ "userboot=test/core/zbi-child-test" ]
  deps = [
    ":zbi-child",
    "$zx/kernel",
  ]
}

### Defines the parent.

resource("zbi-child-image-resource") {
  testonly = true
  deps = [ ":zbi-child-image.zbi" ]
  sources = get_target_outputs(":zbi-child-image.zbi")
  outputs = [ "testdata/zbi-bootfs/zbi-child-image.zbi" ]
}

# Simple binary that mexecs into the child binary.
zx_test("zbi-parent") {
  test_group = "core"
  sources = [ "parent.cc" ]

  data_deps = [ ":zbi-child-image-resource" ]

  deps = [
    "$zx/system/ulib/fdio",
    "$zx/system/ulib/fidl",
    "$zx/system/ulib/libzbi",
    "$zx/system/ulib/zircon",
    "$zx/system/ulib/zx",
    "$zx/system/ulib/zxtest",
  ]
}

zbi_test("zbi-parent-image") {
  assert(current_cpu != "")
  args = [
    "bootsvc.next=test/core/zbi-parent-test",
    "kernel.enable-debugging-syscalls=true",  # Enables mexec.
    "kernel.mexec-force-high-ramdisk=true",  # Force the child to put the RD in high memory
  ]
  deps = [
    ":zbi-parent",
    "$zx/kernel",
    "$zx/system/core/bootsvc",
  ]

  assert_no_deps = [ "$zx/system/dev/*" ]
}