multilib: Add support for cross-canadian multilib packages

Add support for the generation of cross-canadian packages.

Each cross-canadian package has:
 PN = "pkg-cross-canadian-${TRANSLATED_TARGET_ARCH}"

in order for that to be evaluated properly with multilibs enabled, it was
necessary to detect both the presence of the cross-canadian packages and
then update the vars using the OVERRIDE for the multilib.  Additional checks
were made to ensure that any dependency that sais "cross-canadian" did not
get prefixed with the MLPREFIX.

Also, make sure that even when building multilib cross-canadian packages,
we only use the single SDK PACKAGE_ARCH, we don't want or need variants.

(From OE-Core rev: 132a182e2f6c330aa645de42c1aeb386e43bddd3)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/base.bbclass

@@ -183,6 +183,8 @@ def preferred_ml_updates(d):
             providers.append(v)
 
     for pkg, reason in blacklists.items():
+        if pkg.endswith("-native") or pkg.startswith("nativesdk-") or 'cross-canadian' in pkg:
+            continue
         for p in prefixes:
             newpkg = p + "-" + pkg
             if not d.getVarFlag('PNBLACKLIST', newpkg, True):
@@ -193,6 +195,17 @@ def preferred_ml_updates(d):
         pkg = v.replace("PREFERRED_VERSION_", "")
         if pkg.endswith("-native") or pkg.startswith("nativesdk-"):
             continue
+        if 'cross-canadian' in pkg:
+            for p in prefixes:
+                localdata = bb.data.createCopy(d)
+                override = ":virtclass-multilib-" + p
+                localdata.setVar("OVERRIDES", localdata.getVar("OVERRIDES", False) + override)
+                bb.data.update_data(localdata)
+                newname = localdata.expand(v)
+                if newname != v:
+                    newval = localdata.getVar(v, True)
+                    d.setVar(newname, newval)
+            continue
         for p in prefixes:
             newname = "PREFERRED_VERSION_" + p + "-" + pkg
             if not d.getVar(newname, False):
@@ -203,14 +216,36 @@ def preferred_ml_updates(d):
         pkg = prov.replace("PREFERRED_PROVIDER_", "")
         if pkg.endswith("-native") or pkg.startswith("nativesdk-"):
             continue
+        if 'cross-canadian' in pkg:
+            for p in prefixes:
+                localdata = bb.data.createCopy(d)
+                override = ":virtclass-multilib-" + p
+                localdata.setVar("OVERRIDES", localdata.getVar("OVERRIDES", False) + override)
+                bb.data.update_data(localdata)
+                newname = localdata.expand(prov)
+                if newname != prov:
+                    newval = localdata.expand(val)
+                    d.setVar(newname, newval)
+            continue
         virt = ""
         if pkg.startswith("virtual/"):
             pkg = pkg.replace("virtual/", "")
             virt = "virtual/"
         for p in prefixes:
-            newname = "PREFERRED_PROVIDER_" + virt + p + "-" + pkg
             if pkg != "kernel":
                 val = p + "-" + val
+
+            # implement variable keys
+            localdata = bb.data.createCopy(d)
+            override = ":virtclass-multilib-" + p
+            localdata.setVar("OVERRIDES", localdata.getVar("OVERRIDES", False) + override)
+            bb.data.update_data(localdata)
+            newname = localdata.expand(prov)
+            if newname != prov:
+                d.setVar(newname, localdata.expand(val))
+
+            # implement alternative multilib name
+            newname = localdata.expand("PREFERRED_PROVIDER_" + virt + p + "-" + pkg)
             if not d.getVar(newname, False):
                 d.setVar(newname, val)
 
@@ -218,7 +253,7 @@ def preferred_ml_updates(d):
     mp = (d.getVar("MULTI_PROVIDER_WHITELIST", True) or "").split()
     extramp = []
     for p in mp:
-        if p.endswith("-native") or p.startswith("nativesdk-"):
+        if p.endswith("-native") or p.startswith("nativesdk-") or 'cross-canadian' in p:
             continue
         virt = ""
         if p.startswith("virtual/"):

meta/classes/multilib.bbclass

@@ -18,6 +18,13 @@ python multilib_virtclass_handler () {
         e.data.setVar("PN", variant + "-" + e.data.getVar("PN", False))
         return
 
+    if bb.data.inherits_class('cross-canadian', e.data):
+        e.data.setVar("MLPREFIX", variant + "-")
+        override = ":virtclass-multilib-" + variant
+        e.data.setVar("OVERRIDES", e.data.getVar("OVERRIDES", False) + override)
+        bb.data.update_data(e.data)
+        return
+
     if bb.data.inherits_class('native', e.data):
         raise bb.parse.SkipPackage("We can't extend native recipes")
 
@@ -69,12 +76,16 @@ python __anonymous () {
     if bb.data.inherits_class('image', d) or bb.data.inherits_class('populate_sdk_base', d):
         return
 
+    clsextend.map_depends_variable("DEPENDS")
+    clsextend.map_variable("PROVIDES")
+
+    if bb.data.inherits_class('cross-canadian', d):
+        return
+
     clsextend.rename_packages()
     clsextend.rename_package_variables((d.getVar("PACKAGEVARS", True) or "").split())
 
-    clsextend.map_depends_variable("DEPENDS")
     clsextend.map_packagevars()
-    clsextend.map_variable("PROVIDES")
     clsextend.map_regexp_variable("PACKAGES_DYNAMIC")
     clsextend.map_variable("PACKAGE_INSTALL")
     clsextend.map_variable("INITSCRIPT_PACKAGES")
@@ -90,7 +101,7 @@ python do_package_qa_multilib() {
         for i in values:
             if i.startswith('virtual/'):
                 i = i[len('virtual/'):]
-            if (not i.startswith('kernel-module')) and (not i.startswith(mlprefix)):
+            if (not i.startswith('kernel-module')) and (not i.startswith(mlprefix)) and (not 'cross-canadian' in i):
                 candidates.append(i)
         if len(candidates) > 0:
             bb.warn("Multilib QA Issue: %s package %s - suspicious values '%s' in %s" 
@@ -109,4 +120,3 @@ python do_package_qa_multilib() {
         check_mlprefix(pkg, 'RREPLACES', ml)
         check_mlprefix(pkg, 'RCONFLICTS', ml)
 }
-

meta/lib/oe/classextend.py

@@ -50,7 +50,7 @@ class ClassExtender(object):
         return newdata
 
     def map_depends(self, dep):
-        if dep.endswith(("-native", "-native-runtime")):
+        if dep.endswith(("-native", "-native-runtime")) or ('nativesdk-' in dep) or ('cross-canadian' in dep):
             return dep
         else:
             return self.extend_name(dep)
@@ -93,7 +93,7 @@ class ClassExtender(object):
 
 class NativesdkClassExtender(ClassExtender):
     def map_depends(self, dep):
-        if dep.endswith(("-native", "-native-runtime", "-cross")):
+        if dep.endswith(("-native", "-native-runtime", "-cross")) or ('nativesdk-' in dep):
             return dep
         elif dep.endswith(("-gcc-intermediate", "-gcc-initial", "-gcc", "-g++")):
             return dep + "-crosssdk"