[OE-core] [PATCH] image.bbclass: Adding loop back for machine name in hosts file

[Sujith H]

From: Sujith H <Sujith_Haridasan at mentor.com>

If hostname is not added to /etc/hosts file then rpcinfo
command fails when hostname is passed as argument. This was
observed when rpcinfo command was tested on freescale target.
Below was the output observed without this change.

root at mx6q:~# rpcinfo -s mx6q
rpcinfo: can't contact rpcbind: RPC: (unknown error code)

Below is the output after this change:
root at mx6q:~# rpcinfo -s mx6q
   program version(s) netid(s)                         service     owner
    100000  2,3,4     local,udp,tcp,udp6,tcp6          portmapper  superuser
root at mx6q:~#

Signed-off-by: Sujith H <Sujith_Haridasan at mentor.com>
---
 meta/classes/image.bbclass | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 82605f2..7a5a5c1 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -341,6 +341,14 @@ ssh_disable_dns_lookup () {
 	fi
 }
 
+ROOTFS_POSTPROCESS_COMMAND += "add_machine_name_loop_back;"
+
+add_machine_name_loop_back() {
+    if [ -n ${MACHINE} ]; then
+         echo 127.0.1.1 "       "${MACHINE} >> ${IMAGE_ROOTFS}${sysconfdir}/hosts
+    fi
+}
+
 # Enable postinst logging if debug-tweaks is enabled
 postinst_enable_logging () {
 	mkdir -p ${IMAGE_ROOTFS}${sysconfdir}/default
-- 
1.8.4