[OE-core][PATCH] populate_sdk_base: remove useless dirs such as /dev

[Chen Qi <Qi.Chen@windriver.com>]

We met a problem that core-image-tiny-initramfs's SDK cannot be
installed. The error message is like below.

  tar: ./sysroots/core2-64-poky-linux/dev/console: Cannot mknod: Operation not permitted

In fact, the '/dev' direcotry is useless for SDK. So remove it.

This patches uses a variable, SDK_USELESS_DIRS, to hold useless dir entries
so that it could be extended. For example, '/usr/bin' could be added if wanted.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
---
 meta/classes/populate_sdk_base.bbclass | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/meta/classes/populate_sdk_base.bbclass b/meta/classes/populate_sdk_base.bbclass
index fafdd96749..d4065b9b13 100644
--- a/meta/classes/populate_sdk_base.bbclass
+++ b/meta/classes/populate_sdk_base.bbclass
@@ -92,6 +92,8 @@ SDK_HOST_MANIFEST = "${SDKDEPLOYDIR}/${TOOLCHAIN_OUTPUTNAME}.host.manifest"
 SDK_EXT_TARGET_MANIFEST = "${SDK_DEPLOY}/${TOOLCHAINEXT_OUTPUTNAME}.target.manifest"
 SDK_EXT_HOST_MANIFEST = "${SDK_DEPLOY}/${TOOLCHAINEXT_OUTPUTNAME}.host.manifest"
 
+SDK_USELESS_DIRS ?= "/dev"
+
 python write_target_sdk_manifest () {
     from oe.sdk import sdk_list_installed_packages
     from oe.utils import format_pkg_list
@@ -103,6 +105,12 @@ python write_target_sdk_manifest () {
         output.write(format_pkg_list(pkgs, 'ver'))
 }
 
+delete_useless () {
+    for d in ${SDK_USELESS_DIRS}; do
+        rm -rf ${SDK_OUTPUT}${SDKTARGETSYSROOT}$d
+    done
+}
+
 python write_sdk_test_data() {
     from oe.data import export2json
     testdata = "%s/%s.testdata.json" % (d.getVar('SDKDEPLOYDIR'), d.getVar('TOOLCHAIN_OUTPUTNAME'))
@@ -122,8 +130,9 @@ python write_host_sdk_manifest () {
 }
 
 POPULATE_SDK_POST_TARGET_COMMAND:append = " write_sdk_test_data ; "
-POPULATE_SDK_POST_TARGET_COMMAND:append:task-populate-sdk  = " write_target_sdk_manifest ; "
+POPULATE_SDK_POST_TARGET_COMMAND:append:task-populate-sdk  = " write_target_sdk_manifest; delete_useless; "
 POPULATE_SDK_POST_HOST_COMMAND:append:task-populate-sdk = " write_host_sdk_manifest; "
+
 SDK_PACKAGING_COMMAND = "${@'${SDK_PACKAGING_FUNC};' if '${SDK_PACKAGING_FUNC}' else ''}"
 SDK_POSTPROCESS_COMMAND = " create_sdk_files; check_sdk_sysroots; archive_sdk; ${SDK_PACKAGING_COMMAND} "
 
-- 
2.33.0