Squashed 'yocto-poky/' content from commit ea562de
git-subtree-dir: yocto-poky
git-subtree-split: ea562de57590c966cd5a75fda8defecd397e6436
diff --git a/meta/lib/oe/copy_buildsystem.py b/meta/lib/oe/copy_buildsystem.py
new file mode 100644
index 0000000..979578c
--- /dev/null
+++ b/meta/lib/oe/copy_buildsystem.py
@@ -0,0 +1,101 @@
+# This class should provide easy access to the different aspects of the
+# buildsystem such as layers, bitbake location, etc.
+import stat
+import shutil
+
+def _smart_copy(src, dest):
+ # smart_copy will choose the correct function depending on whether the
+ # source is a file or a directory.
+ mode = os.stat(src).st_mode
+ if stat.S_ISDIR(mode):
+ shutil.copytree(src, dest, symlinks=True)
+ else:
+ shutil.copyfile(src, dest)
+ shutil.copymode(src, dest)
+
+class BuildSystem(object):
+ def __init__(self, d):
+ self.d = d
+ self.layerdirs = d.getVar('BBLAYERS', True).split()
+
+ def copy_bitbake_and_layers(self, destdir):
+ # Copy in all metadata layers + bitbake (as repositories)
+ layers_copied = []
+ bb.utils.mkdirhier(destdir)
+ layers = list(self.layerdirs)
+
+ corebase = self.d.getVar('COREBASE', True)
+ layers.append(corebase)
+
+ corebase_files = self.d.getVar('COREBASE_FILES', True).split()
+ corebase_files = [corebase + '/' +x for x in corebase_files]
+ # Make sure bitbake goes in
+ bitbake_dir = bb.__file__.rsplit('/', 3)[0]
+ corebase_files.append(bitbake_dir)
+
+ for layer in layers:
+ layerconf = os.path.join(layer, 'conf', 'layer.conf')
+ if os.path.exists(layerconf):
+ with open(layerconf, 'r') as f:
+ if f.readline().startswith("# ### workspace layer auto-generated by devtool ###"):
+ bb.warn("Skipping local workspace layer %s" % layer)
+ continue
+
+ # If the layer was already under corebase, leave it there
+ # since layers such as meta have issues when moved.
+ layerdestpath = destdir
+ if corebase == os.path.dirname(layer):
+ layerdestpath += '/' + os.path.basename(corebase)
+ layerdestpath += '/' + os.path.basename(layer)
+
+ layer_relative = os.path.relpath(layerdestpath,
+ destdir)
+ layers_copied.append(layer_relative)
+
+ # Treat corebase as special since it typically will contain
+ # build directories or other custom items.
+ if corebase == layer:
+ bb.utils.mkdirhier(layerdestpath)
+ for f in corebase_files:
+ f_basename = os.path.basename(f)
+ destname = os.path.join(layerdestpath, f_basename)
+ _smart_copy(f, destname)
+ else:
+ if os.path.exists(layerdestpath):
+ bb.note("Skipping layer %s, already handled" % layer)
+ else:
+ _smart_copy(layer, layerdestpath)
+
+ return layers_copied
+
+def generate_locked_sigs(sigfile, d):
+ bb.utils.mkdirhier(os.path.dirname(sigfile))
+ depd = d.getVar('BB_TASKDEPDATA', True)
+ tasks = ['%s.%s' % (v[2], v[1]) for v in depd.itervalues()]
+ bb.parse.siggen.dump_lockedsigs(sigfile, tasks)
+
+def prune_lockedsigs(allowed_tasks, excluded_targets, lockedsigs, pruned_output):
+ with open(lockedsigs, 'r') as infile:
+ bb.utils.mkdirhier(os.path.dirname(pruned_output))
+ with open(pruned_output, 'w') as f:
+ invalue = False
+ for line in infile:
+ if invalue:
+ if line.endswith('\\\n'):
+ splitval = line.strip().split(':')
+ if splitval[1] in allowed_tasks and not splitval[0] in excluded_targets:
+ f.write(line)
+ else:
+ f.write(line)
+ invalue = False
+ elif line.startswith('SIGGEN_LOCKEDSIGS'):
+ invalue = True
+ f.write(line)
+
+def create_locked_sstate_cache(lockedsigs, input_sstate_cache, output_sstate_cache, d, fixedlsbstring=""):
+ bb.note('Generating sstate-cache...')
+
+ bb.process.run("gen-lockedsig-cache %s %s %s" % (lockedsigs, input_sstate_cache, output_sstate_cache))
+ if fixedlsbstring:
+ os.rename(output_sstate_cache + '/' + d.getVar('NATIVELSBSTRING', True),
+ output_sstate_cache + '/' + fixedlsbstring)