sstatesig.py: Move package exclusion list to the layer config

its desireable for other layers to be able to append to the list of packages
with 'safe ABI's which are excluded from the sstate signatures.

I can't emphasise enough how careful you need to be with this list, anything
excluded here needs to be things which don't change interface and are consistent
between different machines.

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

2 files changed, 7 insertions, 4 deletions

diff --git a/meta/conf/layer.conf b/meta/conf/layer.conf
index ad9540586c..c0c2930f0d 100644
--- a/meta/conf/layer.conf
+++ b/meta/conf/layer.conf
@@ -18,3 +18,4 @@ PATH := "${PATH}:${COREBASE}/scripts"
 
 QEMUIMAGETESTS := "${COREBASE}/scripts/qemuimage-tests"
 
+SIGGEN_EXCLUDERECIPES_ABISAFE = "sysvinit-inittab shadow-securetty opkg-config-base netbase formfactor xserver-xf86-config pointercal base-files"
diff --git a/meta/lib/oe/sstatesig.py b/meta/lib/oe/sstatesig.py
index 5a64882fba..7b80c18b63 100644
--- a/meta/lib/oe/sstatesig.py
+++ b/meta/lib/oe/sstatesig.py
@@ -1,6 +1,6 @@
 import bb.siggen
 
-def sstate_rundepfilter(fn, recipename, task, dep, depname, dataCache):
+def sstate_rundepfilter(siggen, fn, recipename, task, dep, depname, dataCache):
     # Return True if we should keep the dependency, False to drop it
     def isNative(x):
         return x.endswith("-native")
@@ -30,7 +30,7 @@ def sstate_rundepfilter(fn, recipename, task, dep, depname, dataCache):
         return False
 
     # Exclude well defined machine specific configurations which don't change ABI
-    if depname in ['sysvinit-inittab', 'shadow-securetty', 'opkg-config-base', 'netbase', 'formfactor', 'xserver-xf86-config', 'pointercal', 'base-files']:
+    if depname in siggen.abisaferecipes:
         return False
 
     # Kernel modules are well namespaced. We don't want to depend on the kernel's checksum
@@ -50,16 +50,18 @@ def sstate_rundepfilter(fn, recipename, task, dep, depname, dataCache):
 class SignatureGeneratorOEBasic(bb.siggen.SignatureGeneratorBasic):
     name = "OEBasic"
     def init_rundepcheck(self, data):
+        self.abisaferecipes = (data.getVar("SIGGEN_EXCLUDERECIPES_ABISAFE", True) or "").split()
         pass
     def rundep_check(self, fn, recipename, task, dep, depname, dataCache = None):
-        return sstate_rundepfilter(fn, recipename, task, dep, depname, dataCache)
+        return sstate_rundepfilter(self, fn, recipename, task, dep, depname, dataCache)
 
 class SignatureGeneratorOEBasicHash(bb.siggen.SignatureGeneratorBasicHash):
     name = "OEBasicHash"
     def init_rundepcheck(self, data):
+        self.abisaferecipes = (data.getVar("SIGGEN_EXCLUDERECIPES_ABISAFE", True) or "").split()
         pass
     def rundep_check(self, fn, recipename, task, dep, depname, dataCache = None):
-        return sstate_rundepfilter(fn, recipename, task, dep, depname, dataCache)
+        return sstate_rundepfilter(self, fn, recipename, task, dep, depname, dataCache)
 
 # Insert these classes into siggen's namespace so it can see and select them
 bb.siggen.SignatureGeneratorOEBasic = SignatureGeneratorOEBasic