blob: ba68b60fcb1622ee3381c1c36317a4db113955a5 [file] [log] [blame]
# ex:ts=4:sw=4:sts=4:et
# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
#
# Copyright (c) 2012, Intel Corporation.
# All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# DESCRIPTION
# This module implements the kernel-related functions used by
# 'yocto-kernel' to manage kernel config items and patches for Yocto
# BSPs.
#
# AUTHORS
# Tom Zanussi <tom.zanussi (at] intel.com>
#
import sys
import os
import shutil
from tags import *
import glob
import subprocess
from engine import create_context
def find_bblayers():
"""
Find and return a sanitized list of the layers found in BBLAYERS.
"""
try:
builddir = os.environ["BUILDDIR"]
except KeyError:
print "BUILDDIR not found, exiting. (Did you forget to source oe-init-build-env?)"
sys.exit(1)
bblayers_conf = os.path.join(builddir, "conf/bblayers.conf")
layers = []
bitbake_env_cmd = "bitbake -e"
bitbake_env_lines = subprocess.Popen(bitbake_env_cmd, shell=True,
stdout=subprocess.PIPE).stdout.read()
if not bitbake_env_lines:
print "Couldn't get '%s' output, exiting." % bitbake_env_cmd
sys.exit(1)
for line in bitbake_env_lines.split('\n'):
bblayers = get_line_val(line, "BBLAYERS")
if (bblayers):
break
if not bblayers:
print "Couldn't find BBLAYERS in %s output, exiting." % \
bitbake_env_cmd
sys.exit(1)
raw_layers = bblayers.split()
for layer in raw_layers:
if layer == 'BBLAYERS' or '=' in layer:
continue
layers.append(layer)
return layers
def get_line_val(line, key):
"""
Extract the value from the VAR="val" string
"""
if line.startswith(key + "="):
stripped_line = line.split('=')[1]
stripped_line = stripped_line.replace('\"', '')
return stripped_line
return None
def find_meta_layer():
"""
Find and return the meta layer in BBLAYERS.
"""
layers = find_bblayers()
for layer in layers:
if layer.endswith("meta"):
return layer
return None
def find_bsp_layer(machine):
"""
Find and return a machine's BSP layer in BBLAYERS.
"""
layers = find_bblayers()
for layer in layers:
if layer.endswith(machine):
return layer
print "Unable to find the BSP layer for machine %s." % machine
print "Please make sure it is listed in bblayers.conf"
sys.exit(1)
def gen_choices_str(choices):
"""
Generate a numbered list of choices from a list of choices for
display to the user.
"""
choices_str = ""
for i, choice in enumerate(choices):
choices_str += "\t" + str(i + 1) + ") " + choice + "\n"
return choices_str
def open_user_file(scripts_path, machine, userfile, mode):
"""
Find one of the user files (user-config.cfg, user-patches.scc)
associated with the machine (could be in files/,
linux-yocto-custom/, etc). Returns the open file if found, None
otherwise.
The caller is responsible for closing the file returned.
"""
layer = find_bsp_layer(machine)
linuxdir = os.path.join(layer, "recipes-kernel/linux")
linuxdir_list = os.listdir(linuxdir)
for fileobj in linuxdir_list:
fileobj_path = os.path.join(linuxdir, fileobj)
if os.path.isdir(fileobj_path):
userfile_name = os.path.join(fileobj_path, userfile)
try:
f = open(userfile_name, mode)
return f
except IOError:
continue
return None
def read_config_items(scripts_path, machine):
"""
Find and return a list of config items (CONFIG_XXX) in a machine's
user-defined config fragment [${machine}-user-config.cfg].
"""
config_items = []
f = open_user_file(scripts_path, machine, machine+"-user-config.cfg", "r")
lines = f.readlines()
for line in lines:
s = line.strip()
if s and not s.startswith("#"):
config_items.append(s)
f.close()
return config_items
def write_config_items(scripts_path, machine, config_items):
"""
Write (replace) the list of config items (CONFIG_XXX) in a
machine's user-defined config fragment [${machine}=user-config.cfg].
"""
f = open_user_file(scripts_path, machine, machine+"-user-config.cfg", "w")
for item in config_items:
f.write(item + "\n")
f.close()
kernel_contents_changed(scripts_path, machine)
def yocto_kernel_config_list(scripts_path, machine):
"""
Display the list of config items (CONFIG_XXX) in a machine's
user-defined config fragment [${machine}-user-config.cfg].
"""
config_items = read_config_items(scripts_path, machine)
print "The current set of machine-specific kernel config items for %s is:" % machine
print gen_choices_str(config_items)
def yocto_kernel_config_rm(scripts_path, machine):
"""
Display the list of config items (CONFIG_XXX) in a machine's
user-defined config fragment [${machine}-user-config.cfg], prompt the user
for one or more to remove, and remove them.
"""
config_items = read_config_items(scripts_path, machine)
print "Specify the kernel config items to remove:"
input = raw_input(gen_choices_str(config_items))
rm_choices = input.split()
rm_choices.sort()
removed = []
for choice in reversed(rm_choices):
try:
idx = int(choice) - 1
except ValueError:
print "Invalid choice (%s), exiting" % choice
sys.exit(1)
if idx < 0 or idx >= len(config_items):
print "Invalid choice (%d), exiting" % (idx + 1)
sys.exit(1)
removed.append(config_items.pop(idx))
write_config_items(scripts_path, machine, config_items)
print "Removed items:"
for r in removed:
print "\t%s" % r
def yocto_kernel_config_add(scripts_path, machine, config_items):
"""
Add one or more config items (CONFIG_XXX) to a machine's
user-defined config fragment [${machine}-user-config.cfg].
"""
new_items = []
dup_items = []
cur_items = read_config_items(scripts_path, machine)
for item in config_items:
if not item.startswith("CONFIG") or (not "=y" in item and not "=m" in item):
print "Invalid config item (%s), exiting" % item
sys.exit(1)
if item not in cur_items and item not in new_items:
new_items.append(item)
else:
dup_items.append(item)
if len(new_items) > 0:
cur_items.extend(new_items)
write_config_items(scripts_path, machine, cur_items)
print "Added item%s:" % ("" if len(new_items)==1 else "s")
for n in new_items:
print "\t%s" % n
if len(dup_items) > 0:
output="The following item%s already exist%s in the current configuration, ignoring %s:" % \
(("","s", "it") if len(dup_items)==1 else ("s", "", "them" ))
print output
for n in dup_items:
print "\t%s" % n
def find_current_kernel(bsp_layer, machine):
"""
Determine the kernel and version currently being used in the BSP.
"""
machine_conf = os.path.join(bsp_layer, "conf/machine/" + machine + ".conf")
preferred_kernel = preferred_kernel_version = preferred_version_varname = None
f = open(machine_conf, "r")
lines = f.readlines()
for line in lines:
if line.strip().startswith("PREFERRED_PROVIDER_virtual/kernel"):
preferred_kernel = line.split()[-1]
preferred_kernel = preferred_kernel.replace('\"','')
preferred_version_varname = "PREFERRED_VERSION_" + preferred_kernel
if preferred_version_varname and line.strip().startswith(preferred_version_varname):
preferred_kernel_version = line.split()[-1]
preferred_kernel_version = preferred_kernel_version.replace('\"','')
preferred_kernel_version = preferred_kernel_version.replace('%','')
if preferred_kernel and preferred_kernel_version:
return preferred_kernel + "_" + preferred_kernel_version
elif preferred_kernel:
return preferred_kernel
def find_filesdir(scripts_path, machine):
"""
Find the name of the 'files' dir associated with the machine
(could be in files/, linux-yocto-custom/, etc). Returns the name
of the files dir if found, None otherwise.
"""
layer = find_bsp_layer(machine)
filesdir = None
linuxdir = os.path.join(layer, "recipes-kernel/linux")
linuxdir_list = os.listdir(linuxdir)
for fileobj in linuxdir_list:
fileobj_path = os.path.join(linuxdir, fileobj)
if os.path.isdir(fileobj_path):
# this could be files/ or linux-yocto-custom/, we have no way of distinguishing
# so we take the first (and normally only) dir we find as the 'filesdir'
filesdir = fileobj_path
return filesdir
def read_patch_items(scripts_path, machine):
"""
Find and return a list of patch items in a machine's user-defined
patch list [${machine}-user-patches.scc].
"""
patch_items = []
f = open_user_file(scripts_path, machine, machine+"-user-patches.scc", "r")
lines = f.readlines()
for line in lines:
s = line.strip()
if s and not s.startswith("#"):
fields = s.split()
if not fields[0] == "patch":
continue
patch_items.append(fields[1])
f.close()
return patch_items
def write_patch_items(scripts_path, machine, patch_items):
"""
Write (replace) the list of patches in a machine's user-defined
patch list [${machine}-user-patches.scc].
"""
f = open_user_file(scripts_path, machine, machine+"-user-patches.scc", "w")
for item in patch_items:
f.write("patch " + item + "\n")
f.close()
kernel_contents_changed(scripts_path, machine)
def yocto_kernel_patch_list(scripts_path, machine):
"""
Display the list of patches in a machine's user-defined patch list
[${machine}-user-patches.scc].
"""
patches = read_patch_items(scripts_path, machine)
print "The current set of machine-specific patches for %s is:" % machine
print gen_choices_str(patches)
def yocto_kernel_patch_rm(scripts_path, machine):
"""
Remove one or more patches from a machine's user-defined patch
list [${machine}-user-patches.scc].
"""
patches = read_patch_items(scripts_path, machine)
print "Specify the patches to remove:"
input = raw_input(gen_choices_str(patches))
rm_choices = input.split()
rm_choices.sort()
removed = []
filesdir = find_filesdir(scripts_path, machine)
if not filesdir:
print "Couldn't rm patch(es) since we couldn't find a 'files' dir"
sys.exit(1)
for choice in reversed(rm_choices):
try:
idx = int(choice) - 1
except ValueError:
print "Invalid choice (%s), exiting" % choice
sys.exit(1)
if idx < 0 or idx >= len(patches):
print "Invalid choice (%d), exiting" % (idx + 1)
sys.exit(1)
filesdir_patch = os.path.join(filesdir, patches[idx])
if os.path.isfile(filesdir_patch):
os.remove(filesdir_patch)
removed.append(patches[idx])
patches.pop(idx)
write_patch_items(scripts_path, machine, patches)
print "Removed patches:"
for r in removed:
print "\t%s" % r
def yocto_kernel_patch_add(scripts_path, machine, patches):
"""
Add one or more patches to a machine's user-defined patch list
[${machine}-user-patches.scc].
"""
existing_patches = read_patch_items(scripts_path, machine)
for patch in patches:
if os.path.basename(patch) in existing_patches:
print "Couldn't add patch (%s) since it's already been added" % os.path.basename(patch)
sys.exit(1)
filesdir = find_filesdir(scripts_path, machine)
if not filesdir:
print "Couldn't add patch (%s) since we couldn't find a 'files' dir to add it to" % os.path.basename(patch)
sys.exit(1)
new_patches = []
for patch in patches:
if not os.path.isfile(patch):
print "Couldn't find patch (%s), exiting" % patch
sys.exit(1)
basename = os.path.basename(patch)
filesdir_patch = os.path.join(filesdir, basename)
shutil.copyfile(patch, filesdir_patch)
new_patches.append(basename)
cur_items = read_patch_items(scripts_path, machine)
cur_items.extend(new_patches)
write_patch_items(scripts_path, machine, cur_items)
print "Added patches:"
for n in new_patches:
print "\t%s" % n
def inc_pr(line):
"""
Add 1 to the PR value in the given bbappend PR line. For the PR
lines in kernel .bbappends after modifications. Handles PRs of
the form PR := "${PR}.1" as well as PR = "r0".
"""
idx = line.find("\"")
pr_str = line[idx:]
pr_str = pr_str.replace('\"','')
fields = pr_str.split('.')
if len(fields) > 1:
fields[1] = str(int(fields[1]) + 1)
pr_str = "\"" + '.'.join(fields) + "\"\n"
else:
pr_val = pr_str[1:]
pr_str = "\"" + "r" + str(int(pr_val) + 1) + "\"\n"
idx2 = line.find("\"", idx + 1)
line = line[:idx] + pr_str
return line
def kernel_contents_changed(scripts_path, machine):
"""
Do what we need to do to notify the system that the kernel
recipe's contents have changed.
"""
layer = find_bsp_layer(machine)
kernel = find_current_kernel(layer, machine)
if not kernel:
print "Couldn't determine the kernel for this BSP, exiting."
sys.exit(1)
kernel_bbfile = os.path.join(layer, "recipes-kernel/linux/" + kernel + ".bbappend")
if not os.path.isfile(kernel_bbfile):
kernel_bbfile = os.path.join(layer, "recipes-kernel/linux/" + kernel + ".bb")
if not os.path.isfile(kernel_bbfile):
return
kernel_bbfile_prev = kernel_bbfile + ".prev"
shutil.copyfile(kernel_bbfile, kernel_bbfile_prev)
ifile = open(kernel_bbfile_prev, "r")
ofile = open(kernel_bbfile, "w")
ifile_lines = ifile.readlines()
for ifile_line in ifile_lines:
if ifile_line.strip().startswith("PR"):
ifile_line = inc_pr(ifile_line)
ofile.write(ifile_line)
ofile.close()
ifile.close()
def kernels(context):
"""
Return the list of available kernels in the BSP i.e. corresponding
to the kernel .bbappends found in the layer.
"""
archdir = os.path.join(context["scripts_path"], "lib/bsp/substrate/target/arch/" + context["arch"])
kerndir = os.path.join(archdir, "recipes-kernel/linux")
bbglob = os.path.join(kerndir, "*.bbappend")
bbappends = glob.glob(bbglob)
kernels = []
for kernel in bbappends:
filename = os.path.splitext(os.path.basename(kernel))[0]
idx = filename.find(CLOSE_TAG)
if idx != -1:
filename = filename[idx + len(CLOSE_TAG):].strip()
kernels.append(filename)
kernels.append("custom")
return kernels
def extract_giturl(file):
"""
Extract the git url of the kernel repo from the kernel recipe's
SRC_URI.
"""
url = None
f = open(file, "r")
lines = f.readlines()
for line in lines:
line = line.strip()
if line.startswith("SRC_URI"):
line = line[len("SRC_URI"):].strip()
if line.startswith("="):
line = line[1:].strip()
if line.startswith("\""):
line = line[1:].strip()
prot = "git"
for s in line.split(";"):
if s.startswith("git://"):
url = s
if s.startswith("protocol="):
prot = s.split("=")[1]
if url:
url = prot + url[3:]
return url
def find_giturl(context):
"""
Find the git url of the kernel repo from the kernel recipe's
SRC_URI.
"""
name = context["name"]
filebase = context["filename"]
scripts_path = context["scripts_path"]
meta_layer = find_meta_layer()
kerndir = os.path.join(meta_layer, "recipes-kernel/linux")
bbglob = os.path.join(kerndir, "*.bb")
bbs = glob.glob(bbglob)
for kernel in bbs:
filename = os.path.splitext(os.path.basename(kernel))[0]
if filename in filebase:
giturl = extract_giturl(kernel)
return giturl
return None
def read_features(scripts_path, machine):
"""
Find and return a list of features in a machine's user-defined
features fragment [${machine}-user-features.scc].
"""
features = []
f = open_user_file(scripts_path, machine, machine+"-user-features.scc", "r")
lines = f.readlines()
for line in lines:
s = line.strip()
if s and not s.startswith("#"):
feature_include = s.split()
features.append(feature_include[1].strip())
f.close()
return features
def write_features(scripts_path, machine, features):
"""
Write (replace) the list of feature items in a
machine's user-defined features fragment [${machine}=user-features.cfg].
"""
f = open_user_file(scripts_path, machine, machine+"-user-features.scc", "w")
for item in features:
f.write("include " + item + "\n")
f.close()
kernel_contents_changed(scripts_path, machine)
def yocto_kernel_feature_list(scripts_path, machine):
"""
Display the list of features used in a machine's user-defined
features fragment [${machine}-user-features.scc].
"""
features = read_features(scripts_path, machine)
print "The current set of machine-specific features for %s is:" % machine
print gen_choices_str(features)
def yocto_kernel_feature_rm(scripts_path, machine):
"""
Display the list of features used in a machine's user-defined
features fragment [${machine}-user-features.scc], prompt the user
for one or more to remove, and remove them.
"""
features = read_features(scripts_path, machine)
print "Specify the features to remove:"
input = raw_input(gen_choices_str(features))
rm_choices = input.split()
rm_choices.sort()
removed = []
for choice in reversed(rm_choices):
try:
idx = int(choice) - 1
except ValueError:
print "Invalid choice (%s), exiting" % choice
sys.exit(1)
if idx < 0 or idx >= len(features):
print "Invalid choice (%d), exiting" % (idx + 1)
sys.exit(1)
removed.append(features.pop(idx))
write_features(scripts_path, machine, features)
print "Removed features:"
for r in removed:
print "\t%s" % r
def yocto_kernel_feature_add(scripts_path, machine, features):
"""
Add one or more features a machine's user-defined features
fragment [${machine}-user-features.scc].
"""
new_items = []
for item in features:
if not item.endswith(".scc"):
print "Invalid feature (%s), exiting" % item
sys.exit(1)
new_items.append(item)
cur_items = read_features(scripts_path, machine)
cur_items.extend(new_items)
write_features(scripts_path, machine, cur_items)
print "Added features:"
for n in new_items:
print "\t%s" % n
def find_feature_url(git_url):
"""
Find the url of the kern-features.rc kernel for the kernel repo
specified from the BSP's kernel recipe SRC_URI.
"""
feature_url = ""
if git_url.startswith("git://"):
git_url = git_url[len("git://"):].strip()
s = git_url.split("/")
if s[1].endswith(".git"):
s[1] = s[1][:len(s[1]) - len(".git")]
feature_url = "http://" + s[0] + "/cgit/cgit.cgi/" + s[1] + \
"/plain/meta/cfg/kern-features.rc?h=meta"
return feature_url
def find_feature_desc(lines):
"""
Find the feature description and compatibility in the passed-in
set of lines. Returns a string string of the form 'desc
[compat]'.
"""
desc = "no description available"
compat = "unknown"
for line in lines:
idx = line.find("KFEATURE_DESCRIPTION")
if idx != -1:
desc = line[idx + len("KFEATURE_DESCRIPTION"):].strip()
if desc.startswith("\""):
desc = desc[1:]
if desc.endswith("\""):
desc = desc[:-1]
else:
idx = line.find("KFEATURE_COMPATIBILITY")
if idx != -1:
compat = line[idx + len("KFEATURE_COMPATIBILITY"):].strip()
return desc + " [" + compat + "]"
def print_feature_descs(layer, feature_dir):
"""
Print the feature descriptions for the features in feature_dir.
"""
kernel_files_features = os.path.join(layer, "recipes-kernel/linux/files/" +
feature_dir)
for root, dirs, files in os.walk(kernel_files_features):
for file in files:
if file.endswith("~") or file.endswith("#"):
continue
if file.endswith(".scc"):
fullpath = os.path.join(layer, "recipes-kernel/linux/files/" +
feature_dir + "/" + file)
f = open(fullpath)
feature_desc = find_feature_desc(f.readlines())
print feature_dir + "/" + file + ": " + feature_desc
def yocto_kernel_available_features_list(scripts_path, machine):
"""
Display the list of all the kernel features available for use in
BSPs, as gathered from the set of feature sources.
"""
layer = find_bsp_layer(machine)
kernel = find_current_kernel(layer, machine)
if not kernel:
print "Couldn't determine the kernel for this BSP, exiting."
sys.exit(1)
context = create_context(machine, "arch", scripts_path)
context["name"] = "name"
context["filename"] = kernel
giturl = find_giturl(context)
feature_url = find_feature_url(giturl)
feature_cmd = "wget -q -O - " + feature_url
tmp = subprocess.Popen(feature_cmd, shell=True, stdout=subprocess.PIPE).stdout.read()
print "The current set of kernel features available to %s is:\n" % machine
if tmp:
tmpline = tmp.split("\n")
in_kernel_options = False
for line in tmpline:
if not "=" in line:
if in_kernel_options:
break
if "kernel-options" in line:
in_kernel_options = True
continue
if in_kernel_options:
feature_def = line.split("=")
feature_type = feature_def[0].strip()
feature = feature_def[1].strip()
desc = get_feature_desc(giturl, feature)
print "%s: %s" % (feature, desc)
print "[local]"
print_feature_descs(layer, "cfg")
print_feature_descs(layer, "features")
def find_feature_desc_url(git_url, feature):
"""
Find the url of the kernel feature in the kernel repo specified
from the BSP's kernel recipe SRC_URI.
"""
feature_desc_url = ""
if git_url.startswith("git://"):
git_url = git_url[len("git://"):].strip()
s = git_url.split("/")
if s[1].endswith(".git"):
s[1] = s[1][:len(s[1]) - len(".git")]
feature_desc_url = "http://" + s[0] + "/cgit/cgit.cgi/" + s[1] + \
"/plain/meta/cfg/kernel-cache/" + feature + "?h=meta"
return feature_desc_url
def get_feature_desc(git_url, feature):
"""
Return a feature description of the form 'description [compatibility]
BSPs, as gathered from the set of feature sources.
"""
feature_desc_url = find_feature_desc_url(git_url, feature)
feature_desc_cmd = "wget -q -O - " + feature_desc_url
tmp = subprocess.Popen(feature_desc_cmd, shell=True, stdout=subprocess.PIPE).stdout.read()
return find_feature_desc(tmp.split("\n"))
def yocto_kernel_feature_describe(scripts_path, machine, feature):
"""
Display the description of a specific kernel feature available for
use in a BSP.
"""
layer = find_bsp_layer(machine)
kernel = find_current_kernel(layer, machine)
if not kernel:
print "Couldn't determine the kernel for this BSP, exiting."
sys.exit(1)
context = create_context(machine, "arch", scripts_path)
context["name"] = "name"
context["filename"] = kernel
giturl = find_giturl(context)
desc = get_feature_desc(giturl, feature)
print desc
def check_feature_name(feature_name):
"""
Sanity-check the feature name for create/destroy. Return False if not OK.
"""
if not feature_name.endswith(".scc"):
print "Invalid feature name (must end with .scc) [%s], exiting" % feature_name
return False
if "/" in feature_name:
print "Invalid feature name (don't specify directory) [%s], exiting" % feature_name
return False
return True
def check_create_input(feature_items):
"""
Sanity-check the create input. Return False if not OK.
"""
if not check_feature_name(feature_items[0]):
return False
if feature_items[1].endswith(".patch") or feature_items[1].startswith("CONFIG_"):
print "Missing description and/or compatibilty [%s], exiting" % feature_items[1]
return False
if feature_items[2].endswith(".patch") or feature_items[2].startswith("CONFIG_"):
print "Missing description and/or compatibility [%s], exiting" % feature_items[1]
return False
return True
def yocto_kernel_feature_create(scripts_path, machine, feature_items):
"""
Create a recipe-space kernel feature in a BSP.
"""
if not check_create_input(feature_items):
sys.exit(1)
feature = feature_items[0]
feature_basename = feature.split(".")[0]
feature_description = feature_items[1]
feature_compat = feature_items[2]
patches = []
cfg_items = []
for item in feature_items[3:]:
if item.endswith(".patch"):
patches.append(item)
elif item.startswith("CONFIG"):
if ("=y" in item or "=m" in item):
cfg_items.append(item)
else:
print "Invalid feature item (must be .patch or CONFIG_*) [%s], exiting" % item
sys.exit(1)
feature_dirname = "cfg"
if patches:
feature_dirname = "features"
filesdir = find_filesdir(scripts_path, machine)
if not filesdir:
print "Couldn't add feature (%s), no 'files' dir found" % feature
sys.exit(1)
featdir = os.path.join(filesdir, feature_dirname)
if not os.path.exists(featdir):
os.mkdir(featdir)
for patch in patches:
if not os.path.isfile(patch):
print "Couldn't find patch (%s), exiting" % patch
sys.exit(1)
basename = os.path.basename(patch)
featdir_patch = os.path.join(featdir, basename)
shutil.copyfile(patch, featdir_patch)
new_cfg_filename = os.path.join(featdir, feature_basename + ".cfg")
new_cfg_file = open(new_cfg_filename, "w")
for cfg_item in cfg_items:
new_cfg_file.write(cfg_item + "\n")
new_cfg_file.close()
new_feature_filename = os.path.join(featdir, feature_basename + ".scc")
new_feature_file = open(new_feature_filename, "w")
new_feature_file.write("define KFEATURE_DESCRIPTION \"" + feature_description + "\"\n")
new_feature_file.write("define KFEATURE_COMPATIBILITY " + feature_compat + "\n\n")
for patch in patches:
patch_dir, patch_file = os.path.split(patch)
new_feature_file.write("patch " + patch_file + "\n")
new_feature_file.write("kconf non-hardware " + feature_basename + ".cfg\n")
new_feature_file.close()
print "Added feature:"
print "\t%s" % feature_dirname + "/" + feature
def feature_in_use(scripts_path, machine, feature):
"""
Determine whether the specified feature is in use by the BSP.
Return True if so, False otherwise.
"""
features = read_features(scripts_path, machine)
for f in features:
if f == feature:
return True
return False
def feature_remove(scripts_path, machine, feature):
"""
Remove the specified feature from the available recipe-space
features defined for the BSP.
"""
features = read_features(scripts_path, machine)
new_features = []
for f in features:
if f == feature:
continue
new_features.append(f)
write_features(scripts_path, machine, new_features)
def yocto_kernel_feature_destroy(scripts_path, machine, feature):
"""
Remove a recipe-space kernel feature from a BSP.
"""
if not check_feature_name(feature):
sys.exit(1)
if feature_in_use(scripts_path, machine, "features/" + feature) or \
feature_in_use(scripts_path, machine, "cfg/" + feature):
print "Feature %s is in use (use 'feature rm' to un-use it first), exiting" % feature
sys.exit(1)
filesdir = find_filesdir(scripts_path, machine)
if not filesdir:
print "Couldn't destroy feature (%s), no 'files' dir found" % feature
sys.exit(1)
feature_dirname = "features"
featdir = os.path.join(filesdir, feature_dirname)
if not os.path.exists(featdir):
print "Couldn't find feature directory (%s)" % feature_dirname
sys.exit(1)
feature_fqn = os.path.join(featdir, feature)
if not os.path.exists(feature_fqn):
feature_dirname = "cfg"
featdir = os.path.join(filesdir, feature_dirname)
if not os.path.exists(featdir):
print "Couldn't find feature directory (%s)" % feature_dirname
sys.exit(1)
feature_fqn = os.path.join(featdir, feature_filename)
if not os.path.exists(feature_fqn):
print "Couldn't find feature (%s)" % feature
sys.exit(1)
f = open(feature_fqn, "r")
lines = f.readlines()
for line in lines:
s = line.strip()
if s.startswith("patch ") or s.startswith("kconf "):
split_line = s.split()
filename = os.path.join(featdir, split_line[-1])
if os.path.exists(filename):
os.remove(filename)
f.close()
os.remove(feature_fqn)
feature_remove(scripts_path, machine, feature)
print "Removed feature:"
print "\t%s" % feature_dirname + "/" + feature
def base_branches(context):
"""
Return a list of the base branches found in the kernel git repo.
"""
giturl = find_giturl(context)
print "Getting branches from remote repo %s..." % giturl
gitcmd = "git ls-remote %s *heads* 2>&1" % (giturl)
tmp = subprocess.Popen(gitcmd, shell=True, stdout=subprocess.PIPE).stdout.read()
branches = []
if tmp:
tmpline = tmp.split("\n")
for line in tmpline:
if len(line)==0:
break;
if not line.endswith("base"):
continue;
idx = line.find("refs/heads/")
kbranch = line[idx + len("refs/heads/"):]
if kbranch.find("/") == -1 and kbranch.find("base") == -1:
continue
idx = kbranch.find("base")
branches.append(kbranch[:idx - 1])
return branches
def all_branches(context):
"""
Return a list of all the branches found in the kernel git repo.
"""
giturl = find_giturl(context)
print "Getting branches from remote repo %s..." % giturl
gitcmd = "git ls-remote %s *heads* 2>&1" % (giturl)
tmp = subprocess.Popen(gitcmd, shell=True, stdout=subprocess.PIPE).stdout.read()
branches = []
base_prefixes = None
try:
branches_base = context["branches_base"]
if branches_base:
base_prefixes = branches_base.split(":")
except KeyError:
pass
arch = context["arch"]
if tmp:
tmpline = tmp.split("\n")
for line in tmpline:
if len(line)==0:
break;
idx = line.find("refs/heads/")
kbranch = line[idx + len("refs/heads/"):]
kbranch_prefix = kbranch.rsplit("/", 1)[0]
if base_prefixes:
for base_prefix in base_prefixes:
if kbranch_prefix == base_prefix:
branches.append(kbranch)
continue
if (kbranch.find("/") != -1 and
(kbranch.find("standard") != -1 or kbranch.find("base") != -1) or
kbranch == "base"):
branches.append(kbranch)
continue
return branches