def add_automatic_backports(args):
disable_list = []
export = re.compile(r'^EXPORT_SYMBOL(_GPL)?\((?P<sym>[^\)]*)\)')
bpi = kconfig.get_backport_info(os.path.join(args.bpid.target_dir, 'compat', 'Kconfig'))
configtree = kconfig.ConfigTree(os.path.join(args.bpid.target_dir, 'Kconfig'), args.bpid)
ignore=['Kconfig.kernel', 'Kconfig.versions']
configtree.verify_sources(ignore=ignore)
git_debug_snapshot(args, "verify sources for automatic backports")
all_selects = configtree.all_selects()
for sym, vals in bpi.items():
if sym.startswith('BPAUTO_BUILD_'):
if not sym[13:] in all_selects:
disable_list.append(sym)
continue
symtype, module_name, c_files, h_files = vals
# first copy files
files = []
for f in c_files:
files.append((f, os.path.join('compat', automatic_backport_mangle_c_file(f))))
for f in h_files:
files.append((os.path.join('include', f),
os.path.join('include', os.path.dirname(f), 'backport-' + os.path.basename(f))))
if args.git_revision:
copy_git_files(args.kerneldir, files, args.git_revision, args.bpid.target_dir)
else:
copy_files(args.kerneldir, files, args.bpid.target_dir)
# now add the Makefile line
mf = open(os.path.join(args.bpid.target_dir, 'compat', 'Makefile'), 'a+')
o_files = [automatic_backport_mangle_c_file(f)[:-1] + 'o' for f in c_files]
if symtype == 'tristate':
if not module_name:
raise Exception('backporting a module requires a #module-name')
for of in o_files:
mf.write('%s-objs += %s\n' % (module_name, of))
mf.write('obj-$(%s%s) += %s.o\n' % (args.bpid.full_prefix, sym, module_name))
elif symtype == 'bool':
mf.write('compat-$(%s%s) += %s\n' % (args.bpid.full_prefix, sym, ' '.join(o_files)))
# finally create the include file
syms = []
for f in c_files:
for l in open(os.path.join(args.bpid.target_dir, 'compat',
automatic_backport_mangle_c_file(f)), 'r'):
m = export.match(l)
if m:
syms.append(m.group('sym'))
for f in h_files:
outf = open(os.path.join(args.bpid.target_dir, 'include', f), 'w')
outf.write('/* Automatically created during backport process */\n')
outf.write('#ifndef %s%s\n' % (args.bpid.full_prefix, sym))
outf.write('#include_next <%s>\n' % f)
outf.write('#else\n');
for s in syms:
outf.write('#undef %s\n' % s)
outf.write('#define %s LINUX_BACKPORT(%s)\n' % (s, s))
outf.write('#include <%s>\n' % (os.path.dirname(f) + '/backport-' + os.path.basename(f), ))
outf.write('#endif /* %s%s */\n' % (args.bpid.full_prefix, sym))
return disable_list
def add_automatic_backports(args):
disable_list = []
export = re.compile(r'^EXPORT_SYMBOL(_GPL)?\((?P<sym>[^\)]*)\)')
bpi = kconfig.get_backport_info(os.path.join(args.bpid.target_dir, 'compat', 'Kconfig'))
configtree = kconfig.ConfigTree(os.path.join(args.bpid.target_dir, 'Kconfig'), args.bpid)
ignore=['Kconfig.kernel', 'Kconfig.versions']
configtree.verify_sources(ignore=ignore)
git_debug_snapshot(args, "verify sources for automatic backports")
all_selects = configtree.all_selects()
for sym, vals in bpi.items():
if sym.startswith('BPAUTO_BUILD_'):
if not sym[13:] in all_selects:
disable_list.append(sym)
continue
symtype, module_name, c_files, h_files = vals
# first copy files
files = []
for f in c_files:
files.append((f, os.path.join('compat', automatic_backport_mangle_c_file(f))))
for f in h_files:
files.append((os.path.join('include', f),
os.path.join('include', os.path.dirname(f), 'backport-' + os.path.basename(f))))
if args.git_revision:
copy_git_files(args.kerneldir, files, args.git_revision, args.bpid.target_dir)
else:
copy_files(args.kerneldir, files, args.bpid.target_dir)
# now add the Makefile line
mf = open(os.path.join(args.bpid.target_dir, 'compat', 'Makefile'), 'a+')
o_files = [automatic_backport_mangle_c_file(f)[:-1] + 'o' for f in c_files]
if symtype == 'tristate':
if not module_name:
raise Exception('backporting a module requires a #module-name')
for of in o_files:
mf.write('%s-objs += %s\n' % (module_name, of))
mf.write('obj-$(%s%s) += %s.o\n' % (args.bpid.full_prefix, sym, module_name))
elif symtype == 'bool':
mf.write('compat-$(%s%s) += %s\n' % (args.bpid.full_prefix, sym, ' '.join(o_files)))
# finally create the include file
syms = []
for f in c_files:
for l in open(os.path.join(args.bpid.target_dir, 'compat',
automatic_backport_mangle_c_file(f)), 'r'):
m = export.match(l)
if m:
syms.append(m.group('sym'))
for f in h_files:
outf = open(os.path.join(args.bpid.target_dir, 'include', f), 'w')
outf.write('/* Automatically created during backport process */\n')
outf.write('#ifndef %s%s\n' % (args.bpid.full_prefix, sym))
outf.write('#include_next <%s>\n' % f)
outf.write('#else\n');
for s in syms:
outf.write('#undef %s\n' % s)
outf.write('#define %s LINUX_BACKPORT(%s)\n' % (s, s))
outf.write('#include <%s>\n' % (os.path.dirname(f) + '/backport-' + os.path.basename(f), ))
outf.write('#endif /* %s%s */\n' % (args.bpid.full_prefix, sym))
return disable_list