diff --git a/poky/meta/classes/archiver.bbclass b/poky/meta/classes/archiver.bbclass
index 7c46cff..48b4913 100644
--- a/poky/meta/classes/archiver.bbclass
+++ b/poky/meta/classes/archiver.bbclass
@@ -2,25 +2,42 @@
 # -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
 #
 # This bbclass is used for creating archive for:
-# 1) original (or unpacked) source: ARCHIVER_MODE[src] = "original"
-# 2) patched source: ARCHIVER_MODE[src] = "patched" (default)
-# 3) configured source: ARCHIVER_MODE[src] = "configured"
-# 4) The patches between do_unpack and do_patch:
-#    ARCHIVER_MODE[diff] = "1"
-#    And you can set the one that you'd like to exclude from the diff:
-#    ARCHIVER_MODE[diff-exclude] ?= ".pc autom4te.cache patches"
-# 5) The environment data, similar to 'bitbake -e recipe':
-#    ARCHIVER_MODE[dumpdata] = "1"
-# 6) The recipe (.bb and .inc): ARCHIVER_MODE[recipe] = "1"
-# 7) Whether output the .src.rpm package:
-#    ARCHIVER_MODE[srpm] = "1"
-# 8) Filter the license, the recipe whose license in
-#    COPYLEFT_LICENSE_INCLUDE will be included, and in
-#    COPYLEFT_LICENSE_EXCLUDE will be excluded.
-#    COPYLEFT_LICENSE_INCLUDE = 'GPL* LGPL*'
-#    COPYLEFT_LICENSE_EXCLUDE = 'CLOSED Proprietary'
-# 9) The recipe type that will be archived:
-#    COPYLEFT_RECIPE_TYPES = 'target'
+#  1) original (or unpacked) source: ARCHIVER_MODE[src] = "original"
+#  2) patched source: ARCHIVER_MODE[src] = "patched" (default)
+#  3) configured source: ARCHIVER_MODE[src] = "configured"
+#  4) source mirror: ARCHIVE_MODE[src] = "mirror"
+#  5) The patches between do_unpack and do_patch:
+#     ARCHIVER_MODE[diff] = "1"
+#     And you can set the one that you'd like to exclude from the diff:
+#     ARCHIVER_MODE[diff-exclude] ?= ".pc autom4te.cache patches"
+#  6) The environment data, similar to 'bitbake -e recipe':
+#     ARCHIVER_MODE[dumpdata] = "1"
+#  7) The recipe (.bb and .inc): ARCHIVER_MODE[recipe] = "1"
+#  8) Whether output the .src.rpm package:
+#     ARCHIVER_MODE[srpm] = "1"
+#  9) Filter the license, the recipe whose license in
+#     COPYLEFT_LICENSE_INCLUDE will be included, and in
+#     COPYLEFT_LICENSE_EXCLUDE will be excluded.
+#     COPYLEFT_LICENSE_INCLUDE = 'GPL* LGPL*'
+#     COPYLEFT_LICENSE_EXCLUDE = 'CLOSED Proprietary'
+# 10) The recipe type that will be archived:
+#     COPYLEFT_RECIPE_TYPES = 'target'
+# 11) The source mirror mode:
+#     ARCHIVER_MODE[mirror] = "split" (default): Sources are split into
+#     per-recipe directories in a similar way to other archiver modes.
+#     Post-processing may be required to produce a single mirror directory.
+#     This does however allow inspection of duplicate sources and more
+#     intelligent handling.
+#     ARCHIVER_MODE[mirror] = "combined": All sources are placed into a single
+#     directory suitable for direct use as a mirror. Duplicate sources are
+#     ignored.
+# 12) Source mirror exclusions:
+#     ARCHIVER_MIRROR_EXCLUDE is a list of prefixes to exclude from the mirror.
+#     This may be used for sources which you are already publishing yourself
+#     (e.g. if the URI starts with 'https://mysite.com/' and your mirror is
+#     going to be published to the same site). It may also be used to exclude
+#     local files (with the prefix 'file://') if these will be provided as part
+#     of an archive of the layers themselves.
 #
 
 # Create archive for all the recipe types
@@ -33,6 +50,7 @@
 ARCHIVER_MODE[diff-exclude] ?= ".pc autom4te.cache patches"
 ARCHIVER_MODE[dumpdata] ?= "0"
 ARCHIVER_MODE[recipe] ?= "0"
+ARCHIVER_MODE[mirror] ?= "split"
 
 DEPLOY_DIR_SRC ?= "${DEPLOY_DIR}/sources"
 ARCHIVER_TOPDIR ?= "${WORKDIR}/deploy-sources"
@@ -41,6 +59,10 @@
 ARCHIVER_RPMOUTDIR = "${ARCHIVER_RPMTOPDIR}/${TARGET_SYS}/${PF}/"
 ARCHIVER_WORKDIR = "${WORKDIR}/archiver-work/"
 
+# When producing a combined mirror directory, allow duplicates for the case
+# where multiple recipes use the same SRC_URI.
+ARCHIVER_COMBINED_MIRRORDIR = "${ARCHIVER_TOPDIR}/mirror"
+SSTATE_DUPWHITELIST += "${DEPLOY_DIR_SRC}/mirror"
 
 do_dumpdata[dirs] = "${ARCHIVER_OUTDIR}"
 do_ar_recipe[dirs] = "${ARCHIVER_OUTDIR}"
@@ -106,6 +128,8 @@
         elif hasTask("do_configure"):
             d.appendVarFlag('do_ar_configured', 'depends', ' %s:do_configure' % pn)
         d.appendVarFlag('do_deploy_archives', 'depends', ' %s:do_ar_configured' % pn)
+    elif ar_src == "mirror":
+        d.appendVarFlag('do_deploy_archives', 'depends', '%s:do_ar_mirror' % pn)
 
     elif ar_src:
         bb.fatal("Invalid ARCHIVER_MODE[src]: %s" % ar_src)
@@ -281,6 +305,79 @@
         create_tarball(d, srcdir, 'configured', ar_outdir)
 }
 
+python do_ar_mirror() {
+    import subprocess
+
+    src_uri = (d.getVar('SRC_URI') or '').split()
+    if len(src_uri) == 0:
+        return
+
+    dl_dir = d.getVar('DL_DIR')
+    mirror_exclusions = (d.getVar('ARCHIVER_MIRROR_EXCLUDE') or '').split()
+    mirror_mode = d.getVarFlag('ARCHIVER_MODE', 'mirror')
+    have_mirror_tarballs = d.getVar('BB_GENERATE_MIRROR_TARBALLS')
+
+    if mirror_mode == 'combined':
+        destdir = d.getVar('ARCHIVER_COMBINED_MIRRORDIR')
+    elif mirror_mode == 'split':
+        destdir = d.getVar('ARCHIVER_OUTDIR')
+    else:
+        bb.fatal('Invalid ARCHIVER_MODE[mirror]: %s' % (mirror_mode))
+
+    if not have_mirror_tarballs:
+        bb.fatal('Using `ARCHIVER_MODE[src] = "mirror"` depends on setting `BB_GENERATE_MIRROR_TARBALLS = "1"`')
+
+    def is_excluded(url):
+        for prefix in mirror_exclusions:
+            if url.startswith(prefix):
+                return True
+        return False
+
+    bb.note('Archiving the source as a mirror...')
+
+    bb.utils.mkdirhier(destdir)
+
+    fetcher = bb.fetch2.Fetch(src_uri, d)
+
+    for url in fetcher.urls:
+        if is_excluded(url):
+            bb.note('Skipping excluded url: %s' % (url))
+            continue
+
+        bb.note('Archiving url: %s' % (url))
+        ud = fetcher.ud[url]
+        ud.setup_localpath(d)
+        localpath = None
+
+        # Check for mirror tarballs first. We will archive the first mirror
+        # tarball that we find as it's assumed that we just need one.
+        for mirror_fname in ud.mirrortarballs:
+            mirror_path = os.path.join(dl_dir, mirror_fname)
+            if os.path.exists(mirror_path):
+                bb.note('Found mirror tarball: %s' % (mirror_path))
+                localpath = mirror_path
+                break
+
+        if len(ud.mirrortarballs) and not localpath:
+            bb.warn('Mirror tarballs are listed for a source but none are present. ' \
+                    'Falling back to original download.\n' \
+                    'SRC_URI = %s' % (url))
+
+        # Check original download
+        if not localpath:
+            bb.note('Using original download: %s' % (ud.localpath))
+            localpath = ud.localpath
+
+        if not localpath or not os.path.exists(localpath):
+            bb.fatal('Original download is missing for a source.\n' \
+                        'SRC_URI = %s' % (url))
+
+        # We now have an appropriate localpath
+        bb.note('Copying source mirror')
+        cmd = 'cp -fpPRH %s %s' % (localpath, destdir)
+        subprocess.check_call(cmd, shell=True)
+}
+
 def exclude_useless_paths(tarinfo):
     if tarinfo.isdir():
         if tarinfo.name.endswith('/temp') or tarinfo.name.endswith('/patches') or tarinfo.name.endswith('/.pc'):
@@ -483,6 +580,7 @@
 addtask do_unpack_and_patch after do_patch
 addtask do_ar_patched after do_unpack_and_patch
 addtask do_ar_configured after do_unpack_and_patch
+addtask do_ar_mirror after do_fetch
 addtask do_dumpdata
 addtask do_ar_recipe
 addtask do_deploy_archives before do_build