reset upstream subtrees to yocto 2.6

Reset the following subtrees on thud HEAD:

  poky: 87e3a9739d
  meta-openembedded: 6094ae18c8
  meta-security: 31dc4e7532
  meta-raspberrypi: a48743dc36
  meta-xilinx: c42016e2e6

Also re-apply backports that didn't make it into thud:
  poky:
    17726d0 systemd-systemctl-native: handle Install wildcards

  meta-openembedded:
    4321a5d libtinyxml2: update to 7.0.1
    042f0a3 libcereal: Add native and nativesdk classes
    e23284f libcereal: Allow empty package
    030e8d4 rsyslog: curl-less build with fmhttp PACKAGECONFIG
    179a1b9 gtest: update to 1.8.1

Squashed OpenBMC subtree compatibility updates:
  meta-aspeed:
    Brad Bishop (1):
          aspeed: add yocto 2.6 compatibility

  meta-ibm:
    Brad Bishop (1):
          ibm: prepare for yocto 2.6

  meta-ingrasys:
    Brad Bishop (1):
          ingrasys: set layer compatibility to yocto 2.6

  meta-openpower:
    Brad Bishop (1):
          openpower: set layer compatibility to yocto 2.6

  meta-phosphor:
    Brad Bishop (3):
          phosphor: set layer compatibility to thud
          phosphor: libgpg-error: drop patches
          phosphor: react to fitimage artifact rename

    Ed Tanous (4):
          Dropbear: upgrade options for latest upgrade
          yocto2.6: update openssl options
          busybox: remove upstream watchdog patch
          systemd: Rebase CONFIG_CGROUP_BPF patch

Change-Id: I7b1fe71cca880d0372a82d94b5fd785323e3a9e7
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/poky/bitbake/lib/bb/fetch2/svn.py b/poky/bitbake/lib/bb/fetch2/svn.py
index 3f172ee..9dcf3eb 100644
--- a/poky/bitbake/lib/bb/fetch2/svn.py
+++ b/poky/bitbake/lib/bb/fetch2/svn.py
@@ -49,7 +49,7 @@
         if not "module" in ud.parm:
             raise MissingParameterError('module', ud.url)
 
-        ud.basecmd = d.getVar('FETCHCMD_svn')
+        ud.basecmd = d.getVar("FETCHCMD_svn") or "/usr/bin/env svn --non-interactive --trust-server-cert"
 
         ud.module = ud.parm["module"]
 
@@ -59,9 +59,13 @@
             ud.path_spec = ud.parm["path_spec"]
 
         # Create paths to svn checkouts
+        svndir = d.getVar("SVNDIR") or (d.getVar("DL_DIR") + "/svn")
         relpath = self._strip_leading_slashes(ud.path)
-        ud.pkgdir = os.path.join(d.expand('${SVNDIR}'), ud.host, relpath)
+        ud.pkgdir = os.path.join(svndir, ud.host, relpath)
         ud.moddir = os.path.join(ud.pkgdir, ud.module)
+        # Protects the repository from concurrent updates, e.g. from two
+        # recipes fetching different revisions at the same time
+        ud.svnlock = os.path.join(ud.pkgdir, "svn.lock")
 
         ud.setup_revisions(d)
 
@@ -122,35 +126,40 @@
 
         logger.debug(2, "Fetch: checking for module directory '" + ud.moddir + "'")
 
-        if os.access(os.path.join(ud.moddir, '.svn'), os.R_OK):
-            svnupdatecmd = self._buildsvncommand(ud, d, "update")
-            logger.info("Update " + ud.url)
-            # We need to attempt to run svn upgrade first in case its an older working format
-            try:
-                runfetchcmd(ud.basecmd + " upgrade", d, workdir=ud.moddir)
-            except FetchError:
-                pass
-            logger.debug(1, "Running %s", svnupdatecmd)
-            bb.fetch2.check_network_access(d, svnupdatecmd, ud.url)
-            runfetchcmd(svnupdatecmd, d, workdir=ud.moddir)
-        else:
-            svnfetchcmd = self._buildsvncommand(ud, d, "fetch")
-            logger.info("Fetch " + ud.url)
-            # check out sources there
-            bb.utils.mkdirhier(ud.pkgdir)
-            logger.debug(1, "Running %s", svnfetchcmd)
-            bb.fetch2.check_network_access(d, svnfetchcmd, ud.url)
-            runfetchcmd(svnfetchcmd, d, workdir=ud.pkgdir)
+        lf = bb.utils.lockfile(ud.svnlock)
 
-        scmdata = ud.parm.get("scmdata", "")
-        if scmdata == "keep":
-            tar_flags = ""
-        else:
-            tar_flags = "--exclude='.svn'"
+        try:
+            if os.access(os.path.join(ud.moddir, '.svn'), os.R_OK):
+                svnupdatecmd = self._buildsvncommand(ud, d, "update")
+                logger.info("Update " + ud.url)
+                # We need to attempt to run svn upgrade first in case its an older working format
+                try:
+                    runfetchcmd(ud.basecmd + " upgrade", d, workdir=ud.moddir)
+                except FetchError:
+                    pass
+                logger.debug(1, "Running %s", svnupdatecmd)
+                bb.fetch2.check_network_access(d, svnupdatecmd, ud.url)
+                runfetchcmd(svnupdatecmd, d, workdir=ud.moddir)
+            else:
+                svnfetchcmd = self._buildsvncommand(ud, d, "fetch")
+                logger.info("Fetch " + ud.url)
+                # check out sources there
+                bb.utils.mkdirhier(ud.pkgdir)
+                logger.debug(1, "Running %s", svnfetchcmd)
+                bb.fetch2.check_network_access(d, svnfetchcmd, ud.url)
+                runfetchcmd(svnfetchcmd, d, workdir=ud.pkgdir)
 
-        # tar them up to a defined filename
-        runfetchcmd("tar %s -czf %s %s" % (tar_flags, ud.localpath, ud.path_spec), d,
-                    cleanup=[ud.localpath], workdir=ud.pkgdir)
+            scmdata = ud.parm.get("scmdata", "")
+            if scmdata == "keep":
+                tar_flags = ""
+            else:
+                tar_flags = "--exclude='.svn'"
+
+            # tar them up to a defined filename
+            runfetchcmd("tar %s -czf %s %s" % (tar_flags, ud.localpath, ud.path_spec), d,
+                        cleanup=[ud.localpath], workdir=ud.pkgdir)
+        finally:
+            bb.utils.unlockfile(lf)
 
     def clean(self, ud, d):
         """ Clean SVN specific files and dirs """