# 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.

declare_args() {
  # Version of the ARM processor when compiling on ARM. Ignored on non-ARM
  # platforms.
  arm_version = 7

  # The ARM floating point mode. This is either the string "hard", "soft", or
  # "softfp". An empty string means to use the default one for the arm_version.
  arm_float_abi = ""
}

assert(arm_float_abi == "" ||
       arm_float_abi == "hard" ||
       arm_float_abi == "soft" ||
       arm_float_abi == "softfp")

if (is_android) {
  arm_use_neon = false
  # Our version of arm_neon_optional from common.gypi. This is not used in the
  # current build so is commented out for now.
  #arm_optionally_use_neon = false
} else {
  arm_use_neon = true
  #arm_optionally_use_neon = true
}

if (arm_version == 6) {
  arm_arch = "armv6"
  arm_tune = ""
  if (arm_float_abi == "") {
    arm_float_abi = "softfp"
  }
  arm_fpu = "vfp"
  # Thumb is a reduced instruction set available on some ARM processors that
  # has increased code density.
  arm_use_thumb = false

} else if (arm_version == 7) {
  arm_arch = "armv7-a"
  arm_tune = "cortex-a8"
  if (arm_float_abi == "") {
    arm_float_abi = "softfp"
  }
  arm_use_thumb = true

  if (arm_use_neon) {
    arm_fpu = "neon"
  } else {
    arm_fpu = "vfpv3-d16"
  }
}