diff options
Diffstat (limited to 'recipes-wam/chromium/gn-utils.inc')
| -rw-r--r-- | recipes-wam/chromium/gn-utils.inc | 151 |
1 files changed, 13 insertions, 138 deletions
diff --git a/recipes-wam/chromium/gn-utils.inc b/recipes-wam/chromium/gn-utils.inc index 0fd55a63..156b56d2 100644 --- a/recipes-wam/chromium/gn-utils.inc +++ b/recipes-wam/chromium/gn-utils.inc @@ -16,142 +16,17 @@ # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. -# GN host architecture helpers. -# -# BUILD_ARCH's value corresponds to what uname returns as the machine name. -# The mapping in gn_host_arch_name() tries to match several possible values -# returned by the Linux kernel in uname(2) into the corresponding values GN -# understands. -def gn_host_arch_name(d): - """Returns a GN architecture name corresponding to the build host's machine - architecture.""" - import re - arch_translations = { - r'aarch64.*': 'arm64', - r'arm.*': 'arm', - r'i[3456]86$': 'x86', - r'x86_64$': 'x64', - } - build_arch = d.getVar("BUILD_ARCH") - for arch_regexp, gn_arch_name in arch_translations.items(): - if re.match(arch_regexp, build_arch): - return gn_arch_name - bb.fatal('Unsuported BUILD_ARCH value: "%s"' % build_arch) - -# GN target architecture helpers. -# -# Determining the target architecture is more difficult, as there are many -# different values we can use on the Yocto side (e.g. TUNE_ARCH, TARGET_ARCH, -# MACHINEOVERRIDES etc). What we do is define the mapping with regular, -# non-Python variables with overrides that are generic enough (i.e. "x86" -# instead of "i586") and then use gn_target_arch_name() to return the right -# value with some validation. -GN_TARGET_ARCH_NAME_aarch64 = "arm64" -GN_TARGET_ARCH_NAME_arm = "arm" -GN_TARGET_ARCH_NAME_x86 = "x86" -GN_TARGET_ARCH_NAME_x86-64 = "x64" - -BUILD_CC_toolchain-clang = "clang" -BUILD_CXX_toolchain-clang = "clang++" -BUILD_LD_toolchain-clang = "clang" - -# knob for clang, when using meta-clang to provide clang and case where -# clang happens to be default compiler for OE we should let it use clang -def is_default_cc_clang(d): - """Return true if clang is default cross compiler.""" - toolchain = d.getVar("TOOLCHAIN") - overrides = d.getVar("OVERRIDES") - if toolchain == "clang" and "toolchain-clang" in overrides.split(":"): - return "true" - return "false" - -def clang_install_path(d): - """Return clang compiler install path.""" - return d.getVar("STAGING_BINDIR_NATIVE") - -def gn_target_arch_name(d): - """Returns a GN architecture name corresponding to the target machine's - architecture.""" - name = d.getVar("GN_TARGET_ARCH_NAME") - if name is None: - bb.fatal('Unsupported target architecture. A valid override for the ' - 'GN_TARGET_ARCH_NAME variable could not be found.') - return name - -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 = "${current_cpu}"\n' - ' current_os = "linux"\n' - ' is_clang = true\n' - ' use_gold = true\n' - ' }\n' - '}\n' - ) - - native_toolchain = { - 'toolchain_name': 'yocto_native', - 'current_cpu': gn_host_arch_name(d), - 'cc': d.expand('${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_target_arch_name(d), - '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': '', +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', + 'i686': 'x86', + 'x86_64': 'x64', } - - 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)) + try: + return translation_table[yocto_arch] + except KeyError: + bb.fatal('"%s" is not a supported architecture.' % yocto_arch) |