yocto-compat-layer: also determine tune flags for each task

locked-sigs.inc groups tasks according to their tune flags (allarch,
i586, etc.). Also retrieve that information while getting signatures,
it will be needed to determine when setting a machine changes tasks
that aren't machine-specific.

Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 10 insertions, 3 deletions

diff --git a/scripts/lib/compatlayer/__init__.py b/scripts/lib/compatlayer/__init__.py
index b46527a185..6130b8548c 100644
--- a/scripts/lib/compatlayer/__init__.py
+++ b/scripts/lib/compatlayer/__init__.py
@@ -224,6 +224,7 @@ def get_signatures(builddir, failsafe=False):
     exclude_recipes = ('meta-world-pkgdata',)
 
     sigs = {}
+    tune2tasks = {}
 
     cmd = 'bitbake '
     if failsafe:
@@ -234,9 +235,14 @@ def get_signatures(builddir, failsafe=False):
     sigs_file = os.path.join(builddir, 'locked-sigs.inc')
 
     sig_regex = re.compile("^(?P<task>.*:.*):(?P<hash>.*) .$")
+    tune_regex = re.compile("(^|\s)SIGGEN_LOCKEDSIGS_t-(?P<tune>\S*)\s*=\s*")
+    current_tune = None
     with open(sigs_file, 'r') as f:
         for line in f.readlines():
             line = line.strip()
+            t = tune_regex.search(line)
+            if t:
+                current_tune = t.group('tune')
             s = sig_regex.match(line)
             if s:
                 exclude = False
@@ -249,11 +255,12 @@ def get_signatures(builddir, failsafe=False):
                     continue
 
                 sigs[s.group('task')] = s.group('hash')
+                tune2tasks.setdefault(current_tune, []).append(s.group('task'))
 
     if not sigs:
         raise RuntimeError('Can\'t load signatures from %s' % sigs_file)
 
-    return sigs
+    return (sigs, tune2tasks)
 
 def get_depgraph(targets=['world']):
     '''
diff --git a/scripts/lib/compatlayer/cases/common.py b/scripts/lib/compatlayer/cases/common.py
index a4c2a51aba..8eeada9b1e 100644
--- a/scripts/lib/compatlayer/cases/common.py
+++ b/scripts/lib/compatlayer/cases/common.py
@@ -33,7 +33,7 @@ class CommonCompatLayer(OECompatLayerTestCase):
 
         # task -> (old signature, new signature)
         sig_diff = {}
-        curr_sigs = get_signatures(self.td['builddir'], failsafe=True)
+        curr_sigs, _ = get_signatures(self.td['builddir'], failsafe=True)
         for task in self.td['sigs']:
             if task in curr_sigs and \
                self.td['sigs'][task] != curr_sigs[task]:
diff --git a/scripts/yocto-compat-layer.py b/scripts/yocto-compat-layer.py
index 22c0c2ddea..2ebddb66d0 100755
--- a/scripts/yocto-compat-layer.py
+++ b/scripts/yocto-compat-layer.py
@@ -139,7 +139,7 @@ def main():
         td['bbvars'] = get_bb_vars()
         logger.info('Getting initial signatures ...')
         td['builddir'] = builddir
-        td['sigs'] = get_signatures(td['builddir'])
+        td['sigs'], td['tunetasks'] = get_signatures(td['builddir'])
 
         if not add_layer(bblayersconf, layer, dep_layers, logger):
             logger.info('Skipping %s ???.' % layer['name'])