3 files changed, 38 insertions, 15 deletions

diff --git a/bitbake/lib/bb/parse/ast.py b/bitbake/lib/bb/parse/ast.py
index 290ed45048..49a0788038 100644
--- a/bitbake/lib/bb/parse/ast.py
+++ b/bitbake/lib/bb/parse/ast.py
@@ -340,16 +340,15 @@ class InheritDeferredNode(AstNode):
         self.inherit = (classes, filename, lineno)
 
     def eval(self, data):
-        inherits = data.getVar('__BBDEFINHERITS', False) or []
-        inherits.append(self.inherit)
-        data.setVar('__BBDEFINHERITS', inherits)
+        bb.parse.BBHandler.inherit_defer(*self.inherit, data)
 
 class AddFragmentsNode(AstNode):
-    def __init__(self, filename, lineno, fragments_path_prefix, fragments_variable, flagged_variables_list_variable):
+    def __init__(self, filename, lineno, fragments_path_prefix, fragments_variable, flagged_variables_list_variable, builtin_fragments_variable):
         AstNode.__init__(self, filename, lineno)
         self.fragments_path_prefix = fragments_path_prefix
         self.fragments_variable = fragments_variable
         self.flagged_variables_list_variable = flagged_variables_list_variable
+        self.builtin_fragments_variable = builtin_fragments_variable
 
     def eval(self, data):
         # No need to use mark_dependency since we would only match a fragment
@@ -362,13 +361,23 @@ class AddFragmentsNode(AstNode):
                    return candidate_fragment_path
            return None
 
+        def check_and_set_builtin_fragment(fragment, data, builtin_fragments):
+            prefix, value = fragment.split('/', 1)
+            if prefix in builtin_fragments.keys():
+                data.setVar(builtin_fragments[prefix], value)
+                return True
+            return False
+
         fragments = data.getVar(self.fragments_variable)
         layers = data.getVar('BBLAYERS')
         flagged_variables = data.getVar(self.flagged_variables_list_variable).split()
+        builtin_fragments = {f[0]:f[1] for f in [f.split(':') for f in data.getVar(self.builtin_fragments_variable).split()] }
 
         if not fragments:
             return
         for f in fragments.split():
+            if check_and_set_builtin_fragment(f, data, builtin_fragments):
+                continue
             layerid, fragment_name = f.split('/', 1)
             full_fragment_name = data.expand("{}/{}.conf".format(self.fragments_path_prefix, fragment_name))
             fragment_path = find_fragment(layers, layerid, full_fragment_name)
@@ -432,7 +441,8 @@ def handleAddFragments(statements, filename, lineno, m):
     fragments_path_prefix = m.group(1)
     fragments_variable = m.group(2)
     flagged_variables_list_variable = m.group(3)
-    statements.append(AddFragmentsNode(filename, lineno, fragments_path_prefix, fragments_variable, flagged_variables_list_variable))
+    builtin_fragments_variable = m.group(4)
+    statements.append(AddFragmentsNode(filename, lineno, fragments_path_prefix, fragments_variable, flagged_variables_list_variable, builtin_fragments_variable))
 
 def runAnonFuncs(d):
     code = []
@@ -471,6 +481,17 @@ def finalize(fn, d, variant = None):
         if d.getVar("_FAILPARSINGERRORHANDLED", False) == True:
             raise bb.BBHandledException()
 
+        inherits = [x[0] for x in (d.getVar('__BBDEFINHERITS', False) or [('',)])]
+        bb.event.fire(bb.event.RecipePreDeferredInherits(fn, inherits), d)
+
+        while True:
+            inherits = d.getVar('__BBDEFINHERITS', False) or []
+            if not inherits:
+                break
+            inherit, filename, lineno = inherits.pop(0)
+            d.setVar('__BBDEFINHERITS', inherits)
+            bb.parse.BBHandler.inherit(inherit, filename, lineno, d, deferred=True)
+
         for var in d.getVar('__BBHANDLERS', False) or []:
             # try to add the handler
             handlerfn = d.getVarFlag(var, "filename", False)
@@ -525,14 +546,6 @@ def multi_finalize(fn, d):
         logger.debug("Appending .bbappend file %s to %s", append, fn)
         bb.parse.BBHandler.handle(append, d, True)
 
-    while True:
-        inherits = d.getVar('__BBDEFINHERITS', False) or []
-        if not inherits:
-            break
-        inherit, filename, lineno = inherits.pop(0)
-        d.setVar('__BBDEFINHERITS', inherits)
-        bb.parse.BBHandler.inherit(inherit, filename, lineno, d, deferred=True)
-
     onlyfinalise = d.getVar("__ONLYFINALISE", False)
 
     safe_d = d
@@ -568,7 +581,7 @@ def multi_finalize(fn, d):
                 d.setVar("BBEXTENDVARIANT", variantmap[name])
             else:
                 d.setVar("PN", "%s-%s" % (pn, name))
-            bb.parse.BBHandler.inherit(extendedmap[name], fn, 0, d)
+            bb.parse.BBHandler.inherit_defer(extendedmap[name], fn, 0, d)
 
         safe_d.setVar("BBCLASSEXTEND", extended)
         _create_variants(datastores, extendedmap.keys(), extendfunc, onlyfinalise)
diff --git a/bitbake/lib/bb/parse/parse_py/BBHandler.py b/bitbake/lib/bb/parse/parse_py/BBHandler.py
index 4bdb11994f..008fec2308 100644
--- a/bitbake/lib/bb/parse/parse_py/BBHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/BBHandler.py
@@ -42,12 +42,22 @@ def supports(fn, d):
     """Return True if fn has a supported extension"""
     return os.path.splitext(fn)[-1] in [".bb", ".bbclass", ".inc"]
 
+def inherit_defer(expression, fn, lineno, d):
+    inherit = (expression, fn, lineno)
+    inherits = d.getVar('__BBDEFINHERITS', False) or []
+    inherits.append(inherit)
+    d.setVar('__BBDEFINHERITS', inherits)
+
 def inherit(files, fn, lineno, d, deferred=False):
     __inherit_cache = d.getVar('__inherit_cache', False) or []
     #if "${" in files and not deferred:
     #    bb.warn("%s:%s has non deferred conditional inherit" % (fn, lineno))
     files = d.expand(files).split()
     for file in files:
+        defer = (d.getVar("BB_DEFER_BBCLASSES") or "").split()
+        if not deferred and file in defer:
+            inherit_defer(file, fn, lineno, d)
+            continue
         classtype = d.getVar("__bbclasstype", False)
         origfile = file
         for t in ["classes-" + classtype, "classes"]:
diff --git a/bitbake/lib/bb/parse/parse_py/ConfHandler.py b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
index 675838d845..9ddbae123d 100644
--- a/bitbake/lib/bb/parse/parse_py/ConfHandler.py
+++ b/bitbake/lib/bb/parse/parse_py/ConfHandler.py
@@ -48,7 +48,7 @@ __export_regexp__ = re.compile( r"export\s+([a-zA-Z0-9\-_+.${}/~]+)$" )
 __unset_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/~]+)$" )
 __unset_flag_regexp__ = re.compile( r"unset\s+([a-zA-Z0-9\-_+.${}/~]+)\[([a-zA-Z0-9\-_+.][a-zA-Z0-9\-_+.@]+)\]$" )
 __addpylib_regexp__      = re.compile(r"addpylib\s+(.+)\s+(.+)" )
-__addfragments_regexp__  = re.compile(r"addfragments\s+(.+)\s+(.+)\s+(.+)" )
+__addfragments_regexp__  = re.compile(r"addfragments\s+(.+)\s+(.+)\s+(.+)\s+(.+)" )
 
 def init(data):
     return