toolchain/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")

clang_toolchain("host_${host_cpu}") {
  if (host_cpu == "arm64") {
    clang_cpu = "aarch64"
  } else if (host_cpu == "x64") {
    clang_cpu = "x86_64"
  } else {
    assert(false, "Host CPU not supported")
  }

  if (host_os == "linux") {
    clang_os = "linux"
  } else if (host_os == "mac") {
    clang_os = "darwin"
  } else {
    assert(false, "Host OS not supported")
  }

  clang_name = "clang+llvm-$clang_cpu-$clang_os"
  clang_path = "//buildtools/toolchain/$clang_name"
  prefix = rebase_path("$clang_path/bin/", root_build_dir)

  cc = "${prefix}clang"
  cxx = "${prefix}clang++"
  ld = cxx
  ar = "${prefix}llvm-ar"

  toolchain_cpu = host_cpu
  toolchain_os = host_os
}