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diff --git a/meta-html5-framework/recipes-wam/chromium/gn-utils.inc b/meta-html5-framework/recipes-wam/chromium/gn-utils.inc
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+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+def gn_arch_name(yocto_arch):
+ """Translates between Yocto's architecture values and the corresponding
+ ones used by GN."""
+ translation_table = {
+ 'aarch64': 'arm64',
+ 'arm': 'arm',
+ 'i586': 'x86',
+ 'x86_64': 'x64',
+ }
+ try:
+ return translation_table[yocto_arch]
+ except KeyError:
+ bb.msg.fatal('"%s" is not a supported architecture.' % yocto_arch)
+
+
+def write_toolchain_file(d, file_path):
+ """Creates a complete GN toolchain file in |file_path|."""
+ import string
+ gcc_toolchain_tmpl = string.Template(
+ 'gcc_toolchain("${toolchain_name}") {\n'
+ ' cc = "${cc}"\n'
+ ' cxx = "${cxx}"\n'
+ ' ar = "${ar}"\n'
+ ' ld = cxx # GN expects a compiler, not a linker.\n'
+ ' nm = "${nm}"\n'
+ ' readelf = "${readelf}"\n'
+ ' extra_cflags = "${extra_cflags}"\n'
+ ' extra_cppflags = "${extra_cppflags}"\n'
+ ' extra_cxxflags = "${extra_cxxflags}"\n'
+ ' extra_ldflags = "${extra_ldflags}"\n'
+ ' toolchain_args = {\n'
+ ' current_cpu = "${current_cpu}"\n'
+ ' current_os = "linux"\n'
+ ' is_clang = false\n'
+ ' }\n'
+ '}\n'
+ )
+ clang_toolchain_tmpl = string.Template(
+ 'clang_toolchain("clang_${toolchain_name}") {\n'
+ ' extra_cflags = "${extra_cflags}"\n'
+ ' extra_cppflags = "${extra_cppflags}"\n'
+ ' extra_cxxflags = "${extra_cxxflags}"\n'
+ ' extra_ldflags = "${extra_ldflags}"\n'
+ ' toolchain_args = {\n'
+ ' current_cpu = "${current_cpu}"\n'
+ ' current_os = "linux"\n'
+ ' is_clang = true\n'
+ ' use_gold = true\n'
+ ' }\n'
+ '}\n'
+ )
+
+ native_toolchain = {
+ 'toolchain_name': 'yocto_native',
+ 'current_cpu': gn_arch_name(d.getVar('BUILD_ARCH', True)),
+ 'cc': d.expand('${BUILD_CC}'),
+ 'cxx': d.expand('${BUILD_CXX}'),
+ 'ar': d.expand('${BUILD_AR}'),
+ 'nm': d.expand('${BUILD_NM}'),
+ 'readelf': d.expand('${BUILD_PREFIX}readelf'),
+ 'extra_cflags': d.expand('${BUILD_CFLAGS}'),
+ 'extra_cppflags': d.expand('${BUILD_CPPFLAGS}'),
+ 'extra_cxxflags': d.expand('${BUILD_CXXFLAGS}'),
+ 'extra_ldflags': d.expand('${BUILD_LDFLAGS}'),
+ }
+ target_toolchain = {
+ 'toolchain_name': 'yocto_target',
+ 'current_cpu': gn_arch_name(d.getVar('TUNE_ARCH', True)),
+ 'cc': d.expand('${CC}'),
+ 'cxx': d.expand('${CXX}'),
+ 'ar': d.expand('${AR}'),
+ 'nm': d.expand('${NM}'),
+ 'readelf': d.expand('${TARGET_PREFIX}readelf'),
+ 'extra_cflags': d.expand('${TARGET_CFLAGS}'),
+ 'extra_cppflags': d.expand('${TARGET_CPPFLAGS}'),
+ 'extra_cxxflags': d.expand('${TARGET_CXXFLAGS}'),
+ 'extra_ldflags': d.expand('${TARGET_LDFLAGS}'),
+ 'strip': '',
+ }
+
+ with open(file_path, 'w') as toolchain_file:
+ toolchain_file.write(
+ '# This file has been generated automatically.\n'
+ '\n'
+ 'import("//build/config/sysroot.gni")\n'
+ 'import("//build/toolchain/gcc_toolchain.gni")\n'
+ '\n'
+ )
+ toolchain_file.write(gcc_toolchain_tmpl.substitute(native_toolchain))
+ toolchain_file.write(gcc_toolchain_tmpl.substitute(target_toolchain))
+ toolchain_file.write(clang_toolchain_tmpl.substitute(native_toolchain))
+ toolchain_file.write(clang_toolchain_tmpl.substitute(target_toolchain))