oeqa/sstatetests: Add test for nativesdk stamp invariance with MACHINE

nativesdk-glbic should not rebuild when you change MACHINE but
it was. We've fixed that, now add tests to ensure this doesn't
happen again.

Rather than add yet another stamps test, extend one of the
existing ones to cover this instead.

(From OE-Core rev: e55b3d88e7a9138f518301a7217f74ba98e979aa)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/sstatetests.py

@@ -3,6 +3,7 @@ import unittest
 import os
 import re
 import shutil
+import glob
 
 import oeqa.utils.ftools as ftools
 from oeqa.selftest.base import oeSelfTest
@@ -276,6 +277,8 @@ NATIVELSBSTRING = \"DistroB\"
         """
         The sstate checksums off allarch packages should be independent of whichever 
         MACHINE is set. Check this using bitbake -S.
+        Also, rather than duplicate the test, check nativesdk stamps are the same between
+        the two MACHINE values.
         """
 
         topdir = get_bb_var('TOPDIR')
@@ -286,18 +289,20 @@ TMPDIR = \"${TOPDIR}/tmp-sstatesamehash\"
 MACHINE = \"qemux86\"
 """)
         self.track_for_cleanup(topdir + "/tmp-sstatesamehash")
-        bitbake("world -S none")
+        bitbake("world meta-toolchain -S none")
         self.write_config("""
 TMPDIR = \"${TOPDIR}/tmp-sstatesamehash2\"
 MACHINE = \"qemuarm\"
 """)
         self.track_for_cleanup(topdir + "/tmp-sstatesamehash2")
-        bitbake("world -S none")
+        bitbake("world meta-toolchain -S none")
 
         def get_files(d):
             f = []
             for root, dirs, files in os.walk(d):
                 for name in files:
+                    if "meta-environment" in root or "cross-canadian" in root:
+                        continue
                     if "do_build" not in name:
                         f.append(os.path.join(root, name))
             return f
@@ -306,3 +311,12 @@ MACHINE = \"qemuarm\"
         files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash") for x in files2]
         self.maxDiff = None
         self.assertItemsEqual(files1, files2)
+
+        nativesdkdir = os.path.basename(glob.glob(topdir + "/tmp-sstatesamehash/stamps/*-nativesdk*-linux")[0])
+
+        files1 = get_files(topdir + "/tmp-sstatesamehash/stamps/" + nativesdkdir)
+        files2 = get_files(topdir + "/tmp-sstatesamehash2/stamps/" + nativesdkdir)
+        files2 = [x.replace("tmp-sstatesamehash2", "tmp-sstatesamehash") for x in files2]
+        self.maxDiff = None
+        self.assertItemsEqual(files1, files2)
+