poky/meta/lib/oe/copy_buildsystem.py
Richard Purdie 652e3028d9 sstatesig/populate_sdk_ext: Improve unihash cache handling
Copying in the bb_unihashes cache file was at best a hack and creates a number of
challenges. One is staying in sync with bitbake since it may not have saved the
most recent version of the file. A second is a determinism problem since there may
be more entries in the file than the SDK should have had access to.

To improve the situation, add code to write the data into the locked-sigs.inc file
such that even when locked-sigs aren't used, the right hash mappings are injected
by the get_cached_unihash call.

The functions in copy_buildsystem need to be updated to preserve data they're not
editting.

(From OE-Core rev: 11373def3171e75b3b74ef694da213dd21f3064c)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2024-06-04 12:04:52 +01:00

302 lines
13 KiB
Python

#
# Copyright OpenEmbedded Contributors
#
# SPDX-License-Identifier: GPL-2.0-only
#
# This class should provide easy access to the different aspects of the
# buildsystem such as layers, bitbake location, etc.
#
# SDK_LAYERS_EXCLUDE: Layers which will be excluded from SDK layers.
# SDK_LAYERS_EXCLUDE_PATTERN: The simiar to SDK_LAYERS_EXCLUDE, this supports
# python regular expression, use space as separator,
# e.g.: ".*-downloads closed-.*"
#
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' --exclude='__pycache__' --xattrs --xattrs-include='*' -cf - -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()
self.layers_exclude_pattern = d.getVar('SDK_LAYERS_EXCLUDE_PATTERN')
def copy_bitbake_and_layers(self, destdir, workspace_name=None):
import re
# Copy in all metadata layers + bitbake (as repositories)
copied_corebase = None
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:
bb.note('Excluded %s from sdk layers since it is in SDK_LAYERS_EXCLUDE' % layer_exclude)
layers.remove(layer_exclude)
if self.layers_exclude_pattern:
layers_cp = layers[:]
for pattern in self.layers_exclude_pattern.split():
for layer in layers_cp:
if re.match(pattern, layer):
bb.note('Excluded %s from sdk layers since matched SDK_LAYERS_EXCLUDE_PATTERN' % layer)
layers.remove(layer)
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)
# If the layer is located somewhere under the same parent directory
# as corebase we keep the layer structure.
elif os.path.commonpath([layer, corebase]) == os.path.dirname(corebase):
layer_relative = os.path.relpath(layer, os.path.dirname(corebase))
if os.path.dirname(layer_relative) != layernewname:
layerdestpath += '/' + os.path.dirname(layer_relative)
layerdestpath += '/' + layernewname
layer_relative = os.path.relpath(layerdestpath,
destdir)
# Treat corebase as special since it typically will contain
# build directories or other custom items.
if corebase == layer:
copied_corebase = layer_relative
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:
layers_copied.append(layer_relative)
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 copied_corebase, 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, onlynative, 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:
if onlynative:
if 'nativesdk' in splitval[0]:
f.write(line)
else:
f.write(line)
else:
f.write(line)
invalue = False
elif line.startswith('SIGGEN_LOCKEDSIGS_t'):
invalue = True
f.write(line)
else:
invalue = False
f.write(line)
def merge_lockedsigs(copy_tasks, lockedsigs_main, lockedsigs_extra, merged_output, copy_output=None):
merged = {}
arch_order = []
otherdata = []
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)
else:
invalue = None
otherdata.append(line)
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))
f.write('\n' + ''.join(otherdata))
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("PYTHONDONTWRITEBYTECODE=1 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 = "%sPYTHONDONTWRITEBYTECODE=1 BB_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')