[PATCH] multilib_global: Add handling of SIGGEN variables for multilib

[Richard Purdie <richard.purdie@linuxfoundation.org>]

multilib task signatures turned out to have issues since
SIGGEN_EXCLUDERECIPES_ABISAFE and SIGGEN_EXCLUDE_SAFE_RECIPE_DEP
did not have multilib mappings. This adds those mappings in which
in turn improves multilib task checksums to match the standard
non-mulitlib versions.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/multilib_global.bbclass b/meta/classes/multilib_global.bbclass
index 612cfb6..67dc72b 100644
--- a/meta/classes/multilib_global.bbclass
+++ b/meta/classes/multilib_global.bbclass
@@ -93,20 +93,38 @@ def preferred_ml_updates(d):
         if prov != provexp and d.getVar(prov, False):
             d.renameVar(prov, provexp)
 
+    def translate_provide(prefix, prov):
+        if not prov.startswith("virtual/"):
+            return prefix + "-" + prov
+        if prov == "virtual/kernel":
+            return prov
+        prov = prov.replace("virtual/", "")
+        return "virtual/" + prefix + "-" + prov
 
     mp = (d.getVar("MULTI_PROVIDER_WHITELIST", True) or "").split()
     extramp = []
     for p in mp:
         if p.endswith("-native") or "-crosssdk-" in p or p.startswith(("nativesdk-", "virtual/nativesdk-")) or 'cross-canadian' in p:
             continue
-        virt = ""
-        if p.startswith("virtual/"):
-            p = p.replace("virtual/", "")
-            virt = "virtual/"
         for pref in prefixes:
-            extramp.append(virt + pref + "-" + p)
+            extramp.append(translate_provide(pref, p))
     d.setVar("MULTI_PROVIDER_WHITELIST", " ".join(mp + extramp))
 
+    abisafe = (d.getVar("SIGGEN_EXCLUDERECIPES_ABISAFE", True) or "").split()
+    extras = []
+    for p in prefixes:
+        for a in abisafe:
+            extras.append(p + "-" + a)
+    d.appendVar("SIGGEN_EXCLUDERECIPES_ABISAFE", " " + " ".join(extras))
+
+    siggen_exclude = (d.getVar("SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS", True) or "").split()
+    extras = []
+    for p in prefixes:
+        for a in siggen_exclude:
+            a1, a2 = a.split("->")
+            extras.append(translate_provide(p, a1) + "->" + translate_provide(p, a2))
+    d.appendVar("SIGGEN_EXCLUDE_SAFE_RECIPE_DEPS", " " + " ".join(extras))
+
 python multilib_virtclass_handler_vendor () {
     if isinstance(e, bb.event.ConfigParsed):
         for v in e.data.getVar("MULTILIB_VARIANTS", True).split():