1 files changed, 110 insertions, 0 deletions
diff --git a/meta-html5-framework/recipes-wam/chromium/gn-utils.inc b/meta-html5-framework/recipes-wam/chromium/gn-utils.inc
new file mode 100644
index 00000000..bca7af8d
--- /dev/null
+++ b/meta-html5-framework/recipes-wam/chromium/gn-utils.inc
@@ -0,0 +1,110 @@
+# 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))