zircon/system/ulib/hermetic-compute/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("hermetic_module.gni")

if (is_hermetic) {
  # This is for hermetic_module() targets to use in deps.
  # It's not to used in programs that link to hermetic-compute.
  library("hermetic-engine") {
    sources = []
    public_deps = [
      # <lib/hermetic-compute/hermetic-engine.h> -> <zircon/syscalls.h>
      "$zx/system/ulib/zircon:headers",
    ]
    public_configs = [ ":hermetic-engine.config" ]
  }

  config("hermetic-engine.config") {
    visibility = [ ":*" ]
    defines = [ "HERMETIC_COMPUTE_MODULE" ]
  }
}

# This is the library for loading and launching hermetic engine modules.
library("hermetic-compute") {
  sources = []
  public_deps = [
    # <lib/hermetic-compute/hermetic-compute.h> -> <fbl/macros.h>
    "$zx/system/ulib/fbl:headers",

    # <lib/hermetic-compute/hermetic-compute.h> -> <lib/zx/vmar.h>
    "$zx/system/ulib/zx:headers",
  ]

  # Just the headers can be used in the hermetic engine environment itself.
  if (toolchain.environment != "hermetic") {
    sources += [
      "hermetic-compute.cc",
      "launch.cc",
    ]
    deps = [
      "$zx/system/ulib/elfload",
      "$zx/system/ulib/zx",
    ]
  }

  # Other "hermetic" environments like userboot can use most of the
  # library, but not this.
  if (!is_hermetic) {
    sources += [ "get-vdso.cc" ]
    deps += [ "$zx/system/ulib/fdio" ]
  }
}