1 files changed, 130 insertions, 0 deletions
diff --git a/poky/meta/classes/meson.bbclass b/poky/meta/classes/meson.bbclass
new file mode 100644
index 000000000..2d7ee4fff
--- /dev/null
+++ b/poky/meta/classes/meson.bbclass
@@ -0,0 +1,130 @@
+inherit python3native
+
+DEPENDS_append = " meson-native ninja-native"
+
+# As Meson enforces out-of-tree builds we can just use cleandirs
+B = "${WORKDIR}/build"
+do_configure[cleandirs] = "${B}"
+
+# Where the meson.build build configuration is
+MESON_SOURCEPATH = "${S}"
+
+def noprefix(var, d):
+    return d.getVar(var).replace(d.getVar('prefix') + '/', '', 1)
+
+MESONOPTS = " --prefix ${prefix} \
+              --buildtype plain \
+              --bindir ${@noprefix('bindir', d)} \
+              --sbindir ${@noprefix('sbindir', d)} \
+              --datadir ${@noprefix('datadir', d)} \
+              --libdir ${@noprefix('libdir', d)} \
+              --libexecdir ${@noprefix('libexecdir', d)} \
+              --includedir ${@noprefix('includedir', d)} \
+              --mandir ${@noprefix('mandir', d)} \
+              --infodir ${@noprefix('infodir', d)} \
+              --sysconfdir ${sysconfdir} \
+              --localstatedir ${localstatedir} \
+              --sharedstatedir ${sharedstatedir}"
+
+MESON_TOOLCHAIN_ARGS = "${HOST_CC_ARCH}${TOOLCHAIN_OPTIONS}"
+MESON_C_ARGS = "${MESON_TOOLCHAIN_ARGS} ${CFLAGS}"
+MESON_CPP_ARGS = "${MESON_TOOLCHAIN_ARGS} ${CXXFLAGS}"
+MESON_LINK_ARGS = "${MESON_TOOLCHAIN_ARGS} ${LDFLAGS}"
+
+# both are required but not used by meson
+MESON_HOST_ENDIAN = "bogus-endian"
+MESON_TARGET_ENDIAN = "bogus-endian"
+
+EXTRA_OEMESON += "${PACKAGECONFIG_CONFARGS}"
+
+MESON_CROSS_FILE = ""
+MESON_CROSS_FILE_class-target = "--cross-file ${WORKDIR}/meson.cross"
+MESON_CROSS_FILE_class-nativesdk = "--cross-file ${WORKDIR}/meson.cross"
+
+def meson_array(var, d):
+    return "', '".join(d.getVar(var).split()).join(("'", "'"))
+
+addtask write_config before do_configure
+do_write_config[vardeps] += "MESON_C_ARGS MESON_CPP_ARGS MESON_LINK_ARGS CC CXX LD AR NM STRIP READELF"
+do_write_config() {
+    # This needs to be Py to split the args into single-element lists
+    cat >${WORKDIR}/meson.cross <<EOF
+[binaries]
+c = [${@meson_array('CC', d)}]
+cpp = [${@meson_array('CXX', d)}]
+ar = [${@meson_array('AR', d)}]
+nm = [${@meson_array('NM', d)}]
+ld = [${@meson_array('LD', d)}]
+strip = [${@meson_array('STRIP', d)}]
+readelf = [${@meson_array('READELF', d)}]
+pkgconfig = 'pkg-config'
+
+[properties]
+needs_exe_wrapper = true
+c_args = [${@meson_array('MESON_C_ARGS', d)}]
+c_link_args = [${@meson_array('MESON_LINK_ARGS', d)}]
+cpp_args = [${@meson_array('MESON_CPP_ARGS', d)}]
+cpp_link_args = [${@meson_array('MESON_LINK_ARGS', d)}]
+gtkdoc_exe_wrapper = '${B}/gtkdoc-qemuwrapper'
+
+[host_machine]
+system = '${HOST_OS}'
+cpu_family = '${HOST_ARCH}'
+cpu = '${HOST_ARCH}'
+endian = '${MESON_HOST_ENDIAN}'
+
+[target_machine]
+system = '${TARGET_OS}'
+cpu_family = '${TARGET_ARCH}'
+cpu = '${TARGET_ARCH}'
+endian = '${MESON_TARGET_ENDIAN}'
+EOF
+}
+
+CONFIGURE_FILES = "meson.build"
+
+meson_do_configure() {
+    if ! meson ${MESONOPTS} "${MESON_SOURCEPATH}" "${B}" ${MESON_CROSS_FILE} ${EXTRA_OEMESON}; then
+        cat ${B}/meson-logs/meson-log.txt
+        bbfatal_log meson failed
+    fi
+}
+
+meson_do_configure_prepend_class-target() {
+    # Set these so that meson uses the native tools for its build sanity tests,
+    # which require executables to be runnable. The cross file will still
+    # override these for the target build. Note that we do *not* set CFLAGS,
+    # LDFLAGS, etc. as they will be slurped in by meson and applied to the
+    # target build, causing errors.
+    export CC="${BUILD_CC}"
+    export CXX="${BUILD_CXX}"
+    export LD="${BUILD_LD}"
+    export AR="${BUILD_AR}"
+}
+
+meson_do_configure_prepend_class-nativesdk() {
+    # Set these so that meson uses the native tools for its build sanity tests,
+    # which require executables to be runnable. The cross file will still
+    # override these for the nativesdk build. Note that we do *not* set CFLAGS,
+    # LDFLAGS, etc. as they will be slurped in by meson and applied to the
+    # nativesdk build, causing errors.
+    export CC="${BUILD_CC}"
+    export CXX="${BUILD_CXX}"
+    export LD="${BUILD_LD}"
+    export AR="${BUILD_AR}"
+}
+
+meson_do_configure_prepend_class-native() {
+    export PKG_CONFIG="pkg-config-native"
+}
+
+do_compile[progress] = "outof:^\[(\d+)/(\d+)\]\s+"
+meson_do_compile() {
+    ninja ${PARALLEL_MAKE}
+}
+
+meson_do_install() {
+    DESTDIR='${D}' ninja ${PARALLEL_MAKEINST} install
+}
+
+EXPORT_FUNCTIONS do_configure do_compile do_install