populate_sdk_ext.bbclass: check unfsd before create it

Fixed when nativesdk-unfs3 is installed:
$ bitbake <image> -c populate_sdk_ext
| Traceback (most recent call last):
|   File "/path/to/oe-core/scripts/lnr", line 21, in <module>
|     os.symlink(target, linkname)
| FileExistsError: [Errno 17] File exists: '../../../../tmp/sysroots/x86_64-linux/usr/bin/unfsd' -> '/path/to/9.0/sysroots/x86_64-wrlinuxsdk-linux/usr/bin/unfsd'

(From OE-Core rev: a400c130037497f08a1645984129c5ddba76c031)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/meta/classes/populate_sdk_ext.bbclass b/meta/classes/populate_sdk_ext.bbclass
index a0856d44f7..26b5ca61d8 100644
--- a/meta/classes/populate_sdk_ext.bbclass
+++ b/meta/classes/populate_sdk_ext.bbclass
@@ -502,9 +502,10 @@ install_tools() {
         done
         # We can't use the same method as above because files in the sysroot won't exist at this point
         # (they get populated from sstate on installation)
-        if [ "${SDK_INCLUDE_TOOLCHAIN}" == "1" ] ; then
+        unfsd_path="${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/unfsd"
+        if [ "${SDK_INCLUDE_TOOLCHAIN}" == "1" -a ! -e $unfsd_path ] ; then
                 binrelpath=${@os.path.relpath(d.getVar('STAGING_BINDIR_NATIVE',True), d.getVar('TOPDIR', True))}
-                lnr ${SDK_OUTPUT}/${SDKPATH}/$binrelpath/unfsd ${SDK_OUTPUT}/${SDKPATHNATIVE}${bindir_nativesdk}/unfsd
+                lnr ${SDK_OUTPUT}/${SDKPATH}/$binrelpath/unfsd $unfsd_path
         fi
         touch ${SDK_OUTPUT}/${SDKPATH}/.devtoolbase