|  | # Copyright 2015 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() { | 
|  | # Native Client supports both Newlib and Glibc C libraries where Newlib | 
|  | # is assumed to be the default one; use this to determine whether Glibc | 
|  | # is being used instead. | 
|  | is_nacl_glibc = false | 
|  | } | 
|  |  | 
|  | is_nacl_irt = false | 
|  | is_nacl_nonsfi = false | 
|  |  | 
|  | nacl_toolchain_dir = "//native_client/toolchain/${host_os}_x86" | 
|  |  | 
|  | if (is_nacl_glibc) { | 
|  | if (current_cpu == "x86" || current_cpu == "x64") { | 
|  | nacl_toolchain_package = "nacl_x86_glibc" | 
|  | } else if (current_cpu == "arm") { | 
|  | nacl_toolchain_package = "nacl_arm_glibc" | 
|  | } | 
|  | } else { | 
|  | nacl_toolchain_package = "pnacl_newlib" | 
|  | } | 
|  |  | 
|  | if (current_cpu == "pnacl") { | 
|  | _nacl_tuple = "pnacl" | 
|  | } else if (current_cpu == "x86" || current_cpu == "x64") { | 
|  | _nacl_tuple = "x86_64-nacl" | 
|  | } else if (current_cpu == "arm") { | 
|  | _nacl_tuple = "arm-nacl" | 
|  | } else if (current_cpu == "mipsel") { | 
|  | _nacl_tuple = "mipsel-nacl" | 
|  | } else { | 
|  | # In order to allow this file to be included unconditionally | 
|  | # from build files that can't depend on //components/nacl/features.gni | 
|  | # we provide a dummy value that should be harmless if nacl isn't needed. | 
|  | # If nacl *is* needed this will result in a real error, indicating that | 
|  | # people need to set the toolchain path correctly. | 
|  | _nacl_tuple = "unknown" | 
|  | } | 
|  |  | 
|  | nacl_toolchain_bindir = "${nacl_toolchain_dir}/${nacl_toolchain_package}/bin" | 
|  | nacl_toolchain_tooldir = | 
|  | "${nacl_toolchain_dir}/${nacl_toolchain_package}/${_nacl_tuple}" | 
|  | nacl_toolprefix = "${nacl_toolchain_bindir}/${_nacl_tuple}-" | 
|  |  | 
|  | nacl_irt_toolchain = "//build/toolchain/nacl:irt_" + target_cpu | 
|  | is_nacl_irt = current_toolchain == nacl_irt_toolchain | 
|  |  | 
|  | # Non-SFI mode is a lightweight sandbox used by Chrome OS for running ARC | 
|  | # applications. | 
|  | nacl_nonsfi_toolchain = "//build/toolchain/nacl:newlib_pnacl_nonsfi" | 
|  | is_nacl_nonsfi = current_toolchain == nacl_nonsfi_toolchain |