sanity.bbclass: Move sanity_info from conf to cache

Since this file is written during recipe parsing, having it in the
${BUILDDIR}/conf directory, which is covered by an inotify watcher,
will trigger a re-parse the next time bitbake is run and the resident
bitbake server is enabled. This causes the sanity_info file to be
updated again, which triggers a new parse the next time bitbake is run
ad infinitum. Moving it to ${BUILDDIR}/cache should avoid this.

(From OE-Core rev: a63d59f64a2d1f450a7639426cae8e0373a2d764)

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit f98103b548aa7dba6b1be6c8e02ef41858a8e85c)
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/sanity.bbclass

@@ -919,7 +919,7 @@ def check_sanity(sanity_data):
     last_tmpdir = ""
     last_sstate_dir = ""
     last_nativelsbstr = ""
-    sanityverfile = sanity_data.expand("${TOPDIR}/conf/sanity_info")
+    sanityverfile = sanity_data.expand("${TOPDIR}/cache/sanity_info")
     if os.path.exists(sanityverfile):
         with open(sanityverfile, 'r') as f:
             for line in f:

meta/lib/oeqa/buildperf/base.py

@@ -462,7 +462,7 @@ class BuildPerfTestCase(unittest.TestCase):
     def rm_tmp(self):
         """Cleanup temporary/intermediate files and directories"""
         log.debug("Removing temporary and cache files")
-        for name in ['bitbake.lock', 'conf/sanity_info',
+        for name in ['bitbake.lock', 'cache/sanity_info',
                      self.bb_vars['TMPDIR']]:
             oe.path.remove(name, recurse=True)