96 lines
3.8 KiB
Python
96 lines
3.8 KiB
Python
# Copyright (C) 2018 Intel Corporation.
|
|
# SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
# This script takes a Kconfig and a .config, and generates a C header file with
|
|
# all the configuration data defined as object-like macros.
|
|
|
|
import sys, os
|
|
|
|
# Kconfiglib: Copyright (c) 2011-2018, Ulf Magnusson
|
|
# SPDX-License-Identifier: ISC
|
|
# Refer to scripts/kconfig/LICENSE.kconfiglib for the permission notice.
|
|
import kconfiglib
|
|
import re
|
|
|
|
class Acrn_config(kconfiglib.Kconfig):
|
|
help_regex = re.compile("64-bit[\s\n]+integer")
|
|
def __init__(self, filename="Kconfig", warn=True, warn_to_stderr=True,
|
|
encoding="utf-8"):
|
|
kconfiglib.Kconfig.__init__(self, filename, warn, warn_to_stderr, encoding)
|
|
|
|
def write_autoconf(self, filename,
|
|
header="/* Generated by Kconfiglib (https://github.com/ulfalizer/Kconfiglib) */\n"):
|
|
|
|
guard_begin = "#ifndef __HV_KCONFIG__\n#define __HV_KCONFIG__\n"
|
|
guard_end = "#endif"
|
|
|
|
with open(filename, "w") as f:
|
|
f.write(header)
|
|
f.write(guard_begin)
|
|
|
|
for sym in self.defined_syms:
|
|
if sym.config_string in ("",None):
|
|
continue
|
|
else:
|
|
val = sym.str_value
|
|
if sym.orig_type in (kconfiglib.BOOL, kconfiglib.TRISTATE):
|
|
if val != "n":
|
|
f.write("#define {}{}{} 1\n"
|
|
.format(self.config_prefix, sym.name,
|
|
"_MODULE" if val == "m" else ""))
|
|
elif sym.orig_type == kconfiglib.STRING:
|
|
f.write('#define {}{} "{}"\n'
|
|
.format(self.config_prefix, sym.name,
|
|
kconfiglib.escape(val)))
|
|
elif sym.orig_type in (kconfiglib.INT, kconfiglib.HEX):
|
|
if sym.orig_type == kconfiglib.HEX:
|
|
val = val + "U"
|
|
if not val.startswith(("0x", "0X")):
|
|
val = "0x" + val
|
|
elif sym.orig_type == kconfiglib.INT and len(sym.ranges) > 0:
|
|
left_sym = sym.ranges[0][0]
|
|
right_sym = sym.ranges[0][1]
|
|
left_value = int(left_sym.str_value)
|
|
right_value = int(right_sym.str_value)
|
|
if left_value >= 0 and right_value >= 0:
|
|
val = val + "U"
|
|
|
|
_help = sym.nodes[0].help
|
|
if _help not in (None,"") and len(self.help_regex.findall(_help)) > 0:
|
|
val = val + "L"
|
|
f.write("#define {}{} {}\n"
|
|
.format(self.config_prefix, sym.name, val))
|
|
else:
|
|
raise Exception("Internal error while creating C "
|
|
'header: unknown type "{}".'
|
|
.format(sym.orig_type))
|
|
|
|
f.write(guard_end)
|
|
|
|
|
|
def usage():
|
|
sys.stdout.write("%s: <Kconfig file> <.config file> <path to config.h>\n" % sys.argv[0])
|
|
|
|
def main():
|
|
if len(sys.argv) < 4:
|
|
usage()
|
|
sys.exit(1)
|
|
|
|
kconfig_path = sys.argv[1]
|
|
if not os.path.isfile(kconfig_path):
|
|
sys.stderr.write("Cannot find file %s\n" % kconfig_path)
|
|
sys.exit(1)
|
|
|
|
config_path = sys.argv[2]
|
|
if not os.path.isfile(config_path):
|
|
sys.stderr.write("Cannot find file %s\n" % config_path)
|
|
sys.exit(1)
|
|
|
|
kconfig = Acrn_config(kconfig_path)
|
|
kconfig.load_config(config_path)
|
|
kconfig.write_autoconf(sys.argv[3])
|
|
sys.stdout.write("Configuration header written to %s.\n" % sys.argv[3])
|
|
|
|
if __name__ == "__main__":
|
|
main()
|