kunlun/build/BUILDCONFIG.gn

# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.




# board_toolchain 用于定义使用的编译工具链
# 这个值可以取 gcc riscv-gcc


if (!defined(board_toolchain)){
  board_toolchain="gcc"
}

if (board_toolchain=="riscv-gcc"){
  current_cc_command = "riscv64-unknown-elf-gcc"
  current_cxx_command = "riscv64-unknown-elf-g++"
  current_ar_command = "riscv64-unknown-elf-ar"
  current_ld_command = current_cc_command
  current_strip_command =
      "riscv64-unknown-elf-strip --strip-unneeded"
} else if (board_toolchain=="gcc"){
  current_cc_command = "gcc"
  current_cxx_command = "g++"
  current_ar_command = "ar"
  current_ld_command = current_cc_command
  current_strip_command =
      "strip --strip-unneeded"
}


if (target_os == "") {
  target_os = host_os
}
if (target_cpu == "") {
  target_cpu = host_cpu
}
if (current_cpu == "") {
  current_cpu = target_cpu
}
if (current_os == "") {
  current_os = target_os
}

is_linux = host_os == "linux" && current_os == "linux" && target_os == "linux"
is_mac = host_os == "mac" && current_os == "mac" && target_os == "mac"

# All binary targets will get this list of configs by default.
_shared_binary_target_configs = [ "//build:compiler_defaults" ]

# Apply that default list to the binary target types.
set_defaults("executable") {
  configs = _shared_binary_target_configs

  # Executables get this additional configuration.
  configs += [ "//build:executable_ldconfig" ]
}
set_defaults("static_library") {
  configs = _shared_binary_target_configs
}
set_defaults("shared_library") {
  configs = _shared_binary_target_configs
}
set_defaults("source_set") {
  configs = _shared_binary_target_configs
}

set_default_toolchain("//build/toolchain:${board_toolchain}")