# 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):
import subprocess
# 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):
bb.utils.mkdirhier(dest)
cmd = "tar --exclude='.git' --xattrs --xattrs-include='*' -chf - -C %s -p . \
| tar --xattrs --xattrs-include='*' -xf - -C %s" % (src, dest)
subprocess.check_output(cmd, shell=True, stderr=subprocess.STDOUT)
else:
shutil.copyfile(src, dest)
shutil.copymode(src, dest)
class BuildSystem(object):
def __init__(self, context, d):
self.d = d
self.context = context
self.layerdirs = [os.path.abspath(pth) for pth in d.getVar('BBLAYERS').split()]
self.layers_exclude = (d.getVar('SDK_LAYERS_EXCLUDE') or "").split()
def copy_bitbake_and_layers(self, destdir, workspace_name=None):
# Copy in all metadata layers + bitbake (as repositories)
layers_copied = []
bb.utils.mkdirhier(destdir)
layers = list(self.layerdirs)
corebase = os.path.abspath(self.d.getVar('COREBASE'))
layers.append(corebase)
# The bitbake build system uses the meta-skeleton layer as a layout
# for common recipies, e.g: the recipetool script to create kernel recipies
# Add the meta-skeleton layer to be included as part of the eSDK installation
layers.append(os.path.join(corebase, 'meta-skeleton'))
# Exclude layers
for layer_exclude in self.layers_exclude:
if layer_exclude in layers:
layers.remove(layer_exclude)
workspace_newname = workspace_name
if workspace_newname:
layernames = [os.path.basename(layer) for layer in layers]
extranum = 0
while workspace_newname in layernames:
extranum += 1
workspace_newname = '%s-%d' % (workspace_name, extranum)
corebase_files = self.d.getVar('COREBASE_FILES').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')
layernewname = os.path.basename(layer)
workspace = False
if os.path.exists(layerconf):
with open(layerconf, 'r') as f:
if f.readline().startswith("# ### workspace layer auto-generated by devtool ###"):
if workspace_newname:
layernewname = workspace_newname
workspace = True
else:
bb.plain("NOTE: Excluding local workspace layer %s from %s" % (layer, self.context))
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)
else:
layer_relative = os.path.basename(corebase) + '/' + os.path.relpath(layer, corebase)
if os.path.dirname(layer_relative) != layernewname:
layerdestpath += '/' + os.path.dirname(layer_relative)
layerdestpath += '/' + layernewname
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(os.path.join(layerdestpath, 'conf/layer.conf')):
bb.note("Skipping layer %s, already handled" % layer)
else:
_smart_copy(layer, layerdestpath)
if workspace:
# Make some adjustments original workspace layer
# Drop sources (recipe tasks will be locked, so we don't need them)
srcdir = os.path.join(layerdestpath, 'sources')
if os.path.isdir(srcdir):
shutil.rmtree(srcdir)
# Drop all bbappends except the one for the image the SDK is being built for
# (because of externalsrc, the workspace bbappends will interfere with the
# locked signatures if present, and we don't need them anyway)
image_bbappend = os.path.splitext(os.path.basename(self.d.getVar('FILE')))[0] + '.bbappend'
appenddir = os.path.join(layerdestpath, 'appends')
if os.path.isdir(appenddir):
for fn in os.listdir(appenddir):
if fn == image_bbappend:
continue
else:
os.remove(os.path.join(appenddir, fn))
# Drop README
readme = os.path.join(layerdestpath, 'README')
if os.path.exists(readme):
os.remove(readme)
# Filter out comments in layer.conf and change layer name
layerconf = os.path.join(layerdestpath, 'conf', 'layer.conf')
with open(layerconf, 'r') as f:
origlines = f.readlines()
with open(layerconf, 'w') as f:
for line in origlines:
if line.startswith('#'):
continue
line = line.replace('workspacelayer', workspace_newname)
f.write(line)
# meta-skeleton layer is added as part of the build system
# but not as a layer included in the build, therefore it is
# not reported to the function caller.
for layer in layers_copied:
if layer.endswith('/meta-skeleton'):
layers_copied.remove(layer)
break
return layers_copied
def generate_locked_sigs(sigfile, d):
bb.utils.mkdirhier(os.path.dirname(sigfile))
depd = d.getVar('BB_TASKDEPDATA', False)
tasks = ['%s.%s' % (v[2], v[1]) for v in depd.values()]
bb.parse.siggen.dump_lockedsigs(sigfile, tasks)
def prune_lockedsigs(excluded_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 not splitval[1] in excluded_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 merge_lockedsigs(copy_tasks, lockedsigs_main, lockedsigs_extra, merged_output, copy_output=None):
merged = {}
arch_order = []
with open(lockedsigs_main, 'r') as f:
invalue = None
for line in f:
if invalue:
if line.endswith('\\\n'):
merged[invalue].append(line)
else:
invalue = None
elif line.startswith('SIGGEN_LOCKEDSIGS_t-'):
invalue = line[18:].split('=', 1)[0].rstrip()
merged[invalue] = []
arch_order.append(invalue)
with open(lockedsigs_extra, 'r') as f:
invalue = None
tocopy = {}
for line in f:
if invalue:
if line.endswith('\\\n'):
if not line in merged[invalue]:
target, task = line.strip().split(':')[:2]
if not copy_tasks or task in copy_tasks:
tocopy[invalue].append(line)
merged[invalue].append(line)
else:
invalue = None
elif line.startswith('SIGGEN_LOCKEDSIGS_t-'):
invalue = line[18:].split('=', 1)[0].rstrip()
if not invalue in merged:
merged[invalue] = []
arch_order.append(invalue)
tocopy[invalue] = []
def write_sigs_file(fn, types, sigs):
fulltypes = []
bb.utils.mkdirhier(os.path.dirname(fn))
with open(fn, 'w') as f:
for typename in types:
lines = sigs[typename]
if lines:
f.write('SIGGEN_LOCKEDSIGS_%s = "\\\n' % typename)
for line in lines:
f.write(line)
f.write(' "\n')
fulltypes.append(typename)
f.write('SIGGEN_LOCKEDSIGS_TYPES = "%s"\n' % ' '.join(fulltypes))
if copy_output:
write_sigs_file(copy_output, list(tocopy.keys()), tocopy)
if merged_output:
write_sigs_file(merged_output, arch_order, merged)
def create_locked_sstate_cache(lockedsigs, input_sstate_cache, output_sstate_cache, d, fixedlsbstring="", filterfile=None):
import shutil
bb.note('Generating sstate-cache...')
nativelsbstring = d.getVar('NATIVELSBSTRING')
bb.process.run("gen-lockedsig-cache %s %s %s %s %s" % (lockedsigs, input_sstate_cache, output_sstate_cache, nativelsbstring, filterfile or ''))
if fixedlsbstring and nativelsbstring != fixedlsbstring:
nativedir = output_sstate_cache + '/' + nativelsbstring
if os.path.isdir(nativedir):
destdir = os.path.join(output_sstate_cache, fixedlsbstring)
for root, _, files in os.walk(nativedir):
for fn in files:
src = os.path.join(root, fn)
dest = os.path.join(destdir, os.path.relpath(src, nativedir))
if os.path.exists(dest):
# Already exists, and it'll be the same file, so just delete it
os.unlink(src)
else:
bb.utils.mkdirhier(os.path.dirname(dest))
shutil.move(src, dest)
def check_sstate_task_list(d, targets, filteroutfile, cmdprefix='', cwd=None, logfile=None):
import subprocess
bb.note('Generating sstate task list...')
if not cwd:
cwd = os.getcwd()
if logfile:
logparam = '-l %s' % logfile
else:
logparam = ''
cmd = "%sBB_SETSCENE_ENFORCE=1 PSEUDO_DISABLED=1 oe-check-sstate %s -s -o %s %s" % (cmdprefix, targets, filteroutfile, logparam)
env = dict(d.getVar('BB_ORIGENV', False))
env.pop('BUILDDIR', '')
env.pop('BBPATH', '')
pathitems = env['PATH'].split(':')
env['PATH'] = ':'.join([item for item in pathitems if not item.endswith('/bitbake/bin')])
bb.process.run(cmd, stderr=subprocess.STDOUT, env=env, cwd=cwd, executable='/bin/bash')