[meta-freescale] [meta-fsl-ppc][PATCH] sysvinit: auto detect hostname for qoriq machines

[ting.liu at freescale.com]

From: Ting Liu <ting.liu at freescale.com>

If a rootfs only contains core specific pkgs (no machine specific
ones), it is convenient and possible to share a common rootfs image
for all the machines with same core.

Add a patch (only works for fsl qoriq boards) to auto set hostname.

Also add support to set hostname via bootargs/cmdline.

Signed-off-by: Ting Liu <ting.liu at freescale.com>
---
 .../sysvinit/qoriq-ppc/auto-detect-hostname.patch      | 18 ++++++++++++++++++
 recipes-core/sysvinit/sysvinit_2.88dsf.bbappend        |  7 ++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 recipes-core/sysvinit/sysvinit/qoriq-ppc/auto-detect-hostname.patch

diff --git a/recipes-core/sysvinit/sysvinit/qoriq-ppc/auto-detect-hostname.patch b/recipes-core/sysvinit/sysvinit/qoriq-ppc/auto-detect-hostname.patch
new file mode 100644
index 0000000..533f92e
--- /dev/null
+++ b/recipes-core/sysvinit/sysvinit/qoriq-ppc/auto-detect-hostname.patch
@@ -0,0 +1,18 @@
+diff -uNr sysvinit/rcS sysvinit-new/rcS
+--- sysvinit/rcS	2014-07-09 11:19:59.000000000 +0800
++++ sysvinit-new/rcS	2014-08-01 15:01:54.000000000 +0800
+@@ -21,6 +21,14 @@
+ #
+ . /etc/default/rcS
+ 
++# auto detect hostname
++#
++if test -r /proc/cmdline && grep -q hostname= /proc/cmdline; then
++  sed -e "s,.*hostname=\(\S*\)\s*.*,\1," /proc/cmdline >/etc/hostname
++elif test -r /proc/cpuinfo && grep -q ^model.*, /proc/cpuinfo; then
++  grep ^model /proc/cpuinfo | cut -d, -f2 | tr [A-Z] [a-z] >/etc/hostname
++fi
++
+ #
+ #	Trap CTRL-C &c only in this shell so we can interrupt subprocesses.
+ #
diff --git a/recipes-core/sysvinit/sysvinit_2.88dsf.bbappend b/recipes-core/sysvinit/sysvinit_2.88dsf.bbappend
index 72d991c..b87dd6b 100644
--- a/recipes-core/sysvinit/sysvinit_2.88dsf.bbappend
+++ b/recipes-core/sysvinit/sysvinit_2.88dsf.bbappend
@@ -1 +1,6 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
+
+SRC_URI_append_qoriq-ppc = " \
+    file://auto-detect-hostname.patch;patchdir=../ \
+"
+
-- 
1.8.3.2