meson: install native file in sdk

Without a native environment file, find_program() can't
locate the native program inside SDK.

That stops wayland compositor using wayland scanner.

(From OE-Core rev: 2ea62c23bf9d37e46d3cd9aa7527c535994d4b77)

Signed-off-by: Hsia-Jun(Randy) Li <randy.li@synaptics.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit c6aed1084006727e3baf70ab9d1f70d9d2d6c01f)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/meson/meson/meson-setup.py

@@ -27,9 +27,17 @@ except KeyError:
 
 template_file = os.path.join(sysroot, 'usr/share/meson/meson.cross.template')
 cross_file = os.path.join(sysroot, 'usr/share/meson/%smeson.cross' % os.environ["TARGET_PREFIX"])
+native_template_file = os.path.join(sysroot, 'usr/share/meson/meson.native.template')
+native_file = os.path.join(sysroot, 'usr/share/meson/meson.native')
 
 with open(template_file) as in_file:
     template = in_file.read()
     output = Template(template).substitute(Environ())
     with open(cross_file, "w") as out_file:
         out_file.write(output)
+
+with open(native_template_file) as in_file:
+    template = in_file.read()
+    output = Template(template).substitute({'OECORE_NATIVE_SYSROOT': os.environ['OECORE_NATIVE_SYSROOT']})
+    with open(native_file, "w") as out_file:
+        out_file.write(output)

meta/recipes-devtools/meson/meson/meson-wrapper

@@ -11,4 +11,5 @@ unset CC CXX CPP LD AR NM STRIP
 
 exec "$OECORE_NATIVE_SYSROOT/usr/bin/meson.real" \
      --cross-file "${OECORE_NATIVE_SYSROOT}/usr/share/meson/${TARGET_PREFIX}meson.cross" \
+     --native-file "${OECORE_NATIVE_SYSROOT}/usr/share/meson/meson.native" \
      "$@"

meta/recipes-devtools/meson/nativesdk-meson_0.58.1.bb

@@ -13,8 +13,54 @@ SRC_URI += "file://meson-setup.py \
 #   real paths by meson-setup.sh when the SDK is extracted.
 # - Some overrides aren't needed, since the SDK injects paths that take care of
 #   them.
+def var_list2str(var, d):
+    items = d.getVar(var).split()
+    return items[0] if len(items) == 1 else ', '.join(repr(s) for s in items)
+
+def generate_native_link_template(d):
+    val = ['-L@{OECORE_NATIVE_SYSROOT}${libdir_native}',
+           '-L@{OECORE_NATIVE_SYSROOT}${base_libdir_native}',
+           '-Wl,-rpath-link,@{OECORE_NATIVE_SYSROOT}${libdir_native}',
+           '-Wl,-rpath-link,@{OECORE_NATIVE_SYSROOT}${base_libdir_native}',
+           '-Wl,--allow-shlib-undefined'
+        ]
+    build_arch = d.getVar('BUILD_ARCH')
+    if 'x86_64' in build_arch:
+        loader = 'ld-linux-x86-64.so.2'
+    elif 'i686' in build_arch:
+        loader = 'ld-linux.so.2'
+    elif 'aarch64' in build_arch:
+        loader = 'ld-linux-aarch64.so.1'
+    elif 'ppc64le' in build_arch:
+        loader = 'ld64.so.2'
+
+    if loader:
+        val += ['-Wl,--dynamic-linker=@{OECORE_NATIVE_SYSROOT}${base_libdir_native}/' + loader]
+
+    return repr(val)
+
 do_install:append() {
     install -d ${D}${datadir}/meson
+
+    cat >${D}${datadir}/meson/meson.native.template <<EOF
+[binaries]
+c = ${@meson_array('BUILD_CC', d)}
+cpp = ${@meson_array('BUILD_CXX', d)}
+ar = ${@meson_array('BUILD_AR', d)}
+nm = ${@meson_array('BUILD_NM', d)}
+strip = ${@meson_array('BUILD_STRIP', d)}
+readelf = ${@meson_array('BUILD_READELF', d)}
+pkgconfig = 'pkg-config-native'
+
+[built-in options]
+c_args = ['-isystem@{OECORE_NATIVE_SYSROOT}${includedir_native}' , ${@var_list2str('BUILD_OPTIMIZATION', d)}]
+c_link_args = ${@generate_native_link_template(d)}
+cpp_args = ['-isystem@{OECORE_NATIVE_SYSROOT}${includedir_native}' , ${@var_list2str('BUILD_OPTIMIZATION', d)}]
+cpp_link_args = ${@generate_native_link_template(d)}
+[properties]
+sys_root = '@OECORE_NATIVE_SYSROOT'
+EOF
+
     cat >${D}${datadir}/meson/meson.cross.template <<EOF
 [binaries]
 c = @CC