Build nacl_helper_nonsfi with GN

build/toolchain/nacl/BUILD.gn

 # Copyright (c) 2014 The Native Client Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/config/sysroot.gni")
 import("//build/config/nacl/config.gni")
 import("//build/toolchain/nacl_toolchain.gni")
 
 # Add the toolchain revision as a preprocessor define so that sources are
 # rebuilt when a toolchain is updated.
@@ skipping 29 matching lines @@
   executable_extension = ".pexe.debug"
 
   finalize = toolprefix + "finalize"
   nonfinal_file =
       "{{root_out_dir}}/{{target_output_name}}${executable_extension}"
   finalized_file = "{{root_out_dir}}/{{target_output_name}}.pexe"
   postlink = "$finalize $nonfinal_file -o $finalized_file"
   link_outputs = [ finalized_file ]
 }
 
+nacl_toolchain("newlib_pnacl_nonsfi") {
+  toolchain_package = "pnacl_newlib"
+  toolchain_revision = pnacl_newlib_rev
+  toolchain_cpu = "pnacl"
+  toolprefix =
+      rebase_path("${nacl_toolchain_dir}/${toolchain_package}/bin/pnacl-",
+                  root_build_dir)
+
+  is_clang = true
+  cc = toolprefix + "clang"
+  cxx = toolprefix + "clang++"
+  ar = toolprefix + "ar"
+  ld = cxx
+  executable_extension = ""
+}
+
 template("nacl_glibc_toolchain") {
   toolchain_cpu = target_name
   assert(defined(invoker.toolchain_tuple), "Must define toolchain_tuple")
   assert(defined(invoker.toolchain_package), "Must define toolchain_package")
   assert(defined(invoker.toolchain_revision), "Must define toolchain_revision")
   forward_variables_from(invoker,
                          [
                            "toolchain_package",
                            "toolchain_revision",
                          ])
@@ skipping 105 matching lines @@
   toolchain_tuple = "i686-nacl"
 }
 
 nacl_clang_toolchains("x64") {
   toolchain_tuple = "x86_64-nacl"
 }
 
 nacl_clang_toolchains("arm") {
   toolchain_tuple = "arm-nacl"
 }