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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import os
import sys
def print_array(name, values):
if len(values) == 0:
return
list = ", ".join(values)
print(" .%s = ((const char*[]){ %s, NULL })," % (name, list))
def parse_line(line):
kind = ""
data = ""
get_kind = False
get_data = False
for item in line.split():
if item == "MODINFO_START":
get_kind = True
continue
if item.startswith("MODINFO_END"):
get_data = False
continue
if get_kind:
kind = item
get_kind = False
get_data = True
continue
if get_data:
data += " " + item
continue
return (kind, data)
def generate(name, lines, enabled):
arch = ""
objs = []
deps = []
opts = []
for line in lines:
if line.find("MODINFO_START") != -1:
(kind, data) = parse_line(line)
if kind == 'obj':
objs.append(data)
elif kind == 'dep':
deps.append(data)
elif kind == 'opts':
opts.append(data)
elif kind == 'arch':
arch = data;
elif kind == 'kconfig':
# don't add a module which dependency is not enabled
# in kconfig
if data.strip() not in enabled:
print(" /* module {} isn't enabled in Kconfig. */"
.format(data.strip()))
print("/* },{ */")
return None
else:
print("unknown:", kind)
exit(1)
print(" .name = \"%s\"," % name)
if arch != "":
print(" .arch = %s," % arch)
print_array("objs", objs)
print_array("deps", deps)
print_array("opts", opts)
print("},{")
return {dep.strip('" ') for dep in deps}
def print_pre():
print("/* generated by scripts/modinfo-generate.py */")
print("#include \"qemu/osdep.h\"")
print("#include \"qemu/module.h\"")
print("const QemuModinfo qemu_modinfo[] = {{")
def print_post():
print(" /* end of list */")
print("}};")
def main(args):
if len(args) < 3 or args[0] != '--devices':
print('Expected: modinfo-generate.py --devices '
'config-device.mak [modinfo files]', file=sys.stderr)
exit(1)
# get all devices enabled in kconfig, from *-config-device.mak
enabled = set()
with open(args[1]) as file:
for line in file.readlines():
config = line.split('=')
if config[1].rstrip() == 'y':
enabled.add(config[0][7:]) # remove CONFIG_
deps = set()
modules = set()
print_pre()
for modinfo in args[2:]:
with open(modinfo) as f:
lines = f.readlines()
print(" /* %s */" % modinfo)
(basename, _) = os.path.splitext(modinfo)
moddeps = generate(basename, lines, enabled)
if moddeps is not None:
modules.add(basename)
deps.update(moddeps)
print_post()
error = False
for dep in deps.difference(modules):
print("Dependency {} cannot be satisfied".format(dep),
file=sys.stderr)
error = True
if error:
exit(1)
if __name__ == "__main__":
main(sys.argv[1:])
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