allarch: only enable allarch when multilib is not used

Some allarch packages rdepends non-allarch packages. when multilib is
used, it doesn't expand the dependency chain correctly, e.g.

core-image-sato -> ca-certificates(allarch) -> openssl

we expect dependency chain for lib32-core-image-sato:

lib32-core-image-sato -> ca-certificates(allarch) -> lib32-openssl

it should install lib32-openssl for ca-certificates but openssl is still
wrongly required.

Only enable allarch when multilib is not used to fix the issue.

(From OE-Core rev: a23c482cab4f874f4a6a6889716123569eb5ece9)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/allarch.bbclass

@@ -2,7 +2,18 @@
 # This class is used for architecture independent recipes/data files (usually scripts)
 #
 
-PACKAGE_ARCH = "all"
+python allarch_package_arch_handler () {
+    if bb.data.inherits_class("native", d) or bb.data.inherits_class("nativesdk", d) \
+        or bb.data.inherits_class("crosssdk", d):
+        return
+
+    variants = d.getVar("MULTILIB_VARIANTS")
+    if not variants:
+        d.setVar("PACKAGE_ARCH", "all" )
+}
+
+addhandler allarch_package_arch_handler
+allarch_package_arch_handler[eventmask] = "bb.event.RecipePreFinalise"
 
 python () {
     # Allow this class to be included but overridden - only set

meta/classes/icecc.bbclass

@@ -171,7 +171,7 @@ def use_icecc(bb,d):
     return "yes"
 
 def icecc_is_allarch(bb, d):
-    return d.getVar("PACKAGE_ARCH") == "all" or bb.data.inherits_class('allarch', d)
+    return d.getVar("PACKAGE_ARCH") == "all"
 
 def icecc_is_kernel(bb, d):
     return \

meta/classes/multilib.bbclass

@@ -50,7 +50,8 @@ python multilib_virtclass_handler () {
     if bb.data.inherits_class('nativesdk', e.data) or bb.data.inherits_class('crosssdk', e.data):
         raise bb.parse.SkipRecipe("We can't extend nativesdk recipes")
 
-    if bb.data.inherits_class('allarch', e.data) and not bb.data.inherits_class('packagegroup', e.data):
+    if bb.data.inherits_class('allarch', e.data) and not d.getVar('MULTILIB_VARIANTS') \
+        and not bb.data.inherits_class('packagegroup', e.data):
         raise bb.parse.SkipRecipe("Don't extend allarch recipes which are not packagegroups")
 
     # Expand this since this won't work correctly once we set a multilib into place

meta/classes/multilib_global.bbclass

@@ -165,9 +165,7 @@ python multilib_virtclass_handler_global () {
         return
 
     if bb.data.inherits_class('kernel', e.data) or \
-            bb.data.inherits_class('module-base', e.data) or \
-            (bb.data.inherits_class('allarch', e.data) and\
-             not bb.data.inherits_class('packagegroup', e.data)):
+            bb.data.inherits_class('module-base', e.data):
             variants = (e.data.getVar("MULTILIB_VARIANTS") or "").split()
 
             import oe.classextend

meta/classes/package.bbclass

@@ -494,7 +494,8 @@ def get_package_mapping (pkg, basepkg, d):
 
     if key in data:
         # Have to avoid undoing the write_extra_pkgs(global_variants...)
-        if bb.data.inherits_class('allarch', d) and data[key] == basepkg:
+        if bb.data.inherits_class('allarch', d) and not d.getVar('MULTILIB_VARIANTS') \
+            and data[key] == basepkg:
             return pkg
         return data[key]
 
@@ -1413,7 +1414,8 @@ fi
     if bb.data.inherits_class('kernel', d) or bb.data.inherits_class('module-base', d):
         write_extra_pkgs(variants, pn, packages, pkgdatadir)
 
-    if (bb.data.inherits_class('allarch', d) and not bb.data.inherits_class('packagegroup', d)):
+    if bb.data.inherits_class('allarch', d) and not variants \
+        and not bb.data.inherits_class('packagegroup', d):
         write_extra_pkgs(global_variants, pn, packages, pkgdatadir)
 
     workdir = d.getVar('WORKDIR')
@@ -1502,7 +1504,8 @@ fi
     if bb.data.inherits_class('kernel', d) or bb.data.inherits_class('module-base', d):
         write_extra_runtime_pkgs(variants, packages, pkgdatadir)
 
-    if bb.data.inherits_class('allarch', d) and not bb.data.inherits_class('packagegroup', d):
+    if bb.data.inherits_class('allarch', d) and not variants \
+        and not bb.data.inherits_class('packagegroup', d):
         write_extra_runtime_pkgs(global_variants, packages, pkgdatadir)
 
 }