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# 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.
if (cpu_arch == "arm") {
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
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 = "generic-armv7-a"
if (arm_float_abi == "") {
arm_float_abi = "softfp"
}
arm_use_thumb = true
if (arm_use_neon) {
arm_fpu = "neon"
} else {
arm_fpu = "vfpv3-d16"
}
}
}
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