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- # Copyright (c) 2017 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.
- # This header file defines the "host_byteorder" variable.
- # Not that this is currently used only for building v8.
- # The chromium code generally assumes little-endianness.
- declare_args() {
- host_byteorder = "undefined"
- }
- # Detect host byteorder
- # ppc64 can be either BE or LE
- if (host_cpu == "ppc64") {
- if (current_os == "aix") {
- host_byteorder = "big"
- } else {
- # Only use the script when absolutely necessary
- host_byteorder =
- exec_script("//build/config/get_host_byteorder.py", [], "trim string")
- }
- } else if (host_cpu == "ppc" || host_cpu == "s390" || host_cpu == "s390x" ||
- host_cpu == "mips" || host_cpu == "mips64") {
- host_byteorder = "big"
- } else {
- host_byteorder = "little"
- }
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