[OE-core] [PATCH 1/2] bbclass/sstate: add hook SSTATE_CHECK_FUNCTIONS for sstate checking

[Hongxu Jia]

Provide hook for sstate checking, the checking failure will
break the building immediately. Pass input parameters by
bb.data (d.setVar/d.getVar).

Hook  : SSTATE_CHECK_FUNCTIONS
Input : missed    - list of missing sstate file index in sq
      : found     - list of existing sstate file index in sq
      : sq_fn     - list of filenames in the sq
      : sq_task   - list of task names in the sq
      : sq_hash   - list of task hash in the sq
      : sq_hashfn - list of hashfn in the sq

[YOCTO #6639]

Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
---
 meta/classes/sstate.bbclass | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 4eec6bd..9edd7c4 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -616,6 +616,18 @@ sstate_unpack_package () {
 
 BB_HASHCHECK_FUNCTION = "sstate_checkhashes"
 
+# Provide hook for sstate checking, the checking failure will
+# break the building immediately. Pass input parameters by
+# bb.data (d.setVar/d.getVar).
+# Input : missed    - list of missing sstate file index in sq
+#       : found     - list of existing sstate file index in sq
+#       : sq_fn     - list of filenames in the sq
+#       : sq_task   - list of task names in the sq
+#       : sq_hash   - list of task hash in the sq
+#       : sq_hashfn - list of hashfn in the sq
+#
+SSTATE_CHECK_FUNCTIONS ?= ""
+
 def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
 
     ret = []
@@ -704,6 +716,20 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
             evdata['found'].append( (sq_fn[task], sq_task[task], sq_hash[task], sstatefile ) )
         bb.event.fire(bb.event.MetadataEvent("MissedSstate", evdata), d)
 
+    localdata = bb.data.createCopy(d)
+    bb.data.update_data(localdata)
+    for f in (localdata.getVar('SSTATE_CHECK_FUNCTIONS', True) or '').split():
+        localdata = bb.data.createCopy(d)
+        bb.data.update_data(localdata)
+        localdata.setVar('missed', missed)
+        localdata.setVar('found', ret)
+        localdata.setVar('sq_fn', sq_fn)
+        localdata.setVar('sq_task', sq_task)
+        localdata.setVar('sq_hash', sq_hash)
+        localdata.setVar('sq_hashfn', sq_hashfn)
+
+        bb.build.exec_func(f, localdata)
+
     return ret
 
 BB_SETSCENE_DEPVALID = "setscene_depvalid"
-- 
1.9.1