toolchain/fuchsia/BUILD.gn

# Copyright 2016 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/toolchain/clang_toolchain.gni")
import("//build/config/fuchsia/config.gni")

template("fuchsia_toolchain") {
  clang_toolchain(target_name) {
    use_strip = true
    forward_variables_from(invoker, "*")

    toolchain_cpu = target_cpu
    toolchain_os = target_os
  }
}

# The fuchsia toolchains require an assembled sysroot in order to do anything,
# so we need to create a dependency edge between all targets using the fuchsia
# toolchain and the sysroot assembly step. The cleanest way to do this in GN is
# by creating a toolchain dependency from the fuchsia toolchains to the
# assembly step. Since all targets in GN exist within a toolchain, and all
# targets inside the fuchsia toolchain need to depend on the sysroot assembly
# step, we need to create another toolchain to contain the sysroot assembly
# target.
fuchsia_toolchain("${target_cpu}-sysroot") {
}

fuchsia_toolchain(target_cpu) {
  deps = [
    "//build/sysroot(//build/toolchain/fuchsia:${target_cpu}-sysroot)",
  ]
}
fuchsia_toolchain("${target_cpu}-shared") {
  is_pic_default = true
  deps = [
    "//build/sysroot(//build/toolchain/fuchsia:${target_cpu}-sysroot)",
  ]
}