233 lines
6.7 KiB
Python
233 lines
6.7 KiB
Python
"""
|
|
This script processes the output from the C preprocessor and extracts all
|
|
qstr. Each qstr is transformed into a qstr definition of the form 'Q(...)'.
|
|
|
|
This script works with Python 2.6, 2.7, 3.3 and 3.4.
|
|
"""
|
|
|
|
from __future__ import print_function
|
|
|
|
import io
|
|
import os
|
|
import re
|
|
import subprocess
|
|
import sys
|
|
import multiprocessing, multiprocessing.dummy
|
|
|
|
|
|
# Extract MP_QSTR_FOO macros.
|
|
_MODE_QSTR = "qstr"
|
|
|
|
# Extract MP_COMPRESSED_ROM_TEXT("") macros. (Which come from MP_ERROR_TEXT)
|
|
_MODE_COMPRESS = "compress"
|
|
|
|
# Extract MP_REGISTER_MODULE(...) macros.
|
|
_MODE_MODULE = "module"
|
|
|
|
# Extract MP_REGISTER_ROOT_POINTER(...) macros.
|
|
_MODE_ROOT_POINTER = "root_pointer"
|
|
|
|
|
|
def is_c_source(fname):
|
|
return os.path.splitext(fname)[1] in [".c"]
|
|
|
|
|
|
def is_cxx_source(fname):
|
|
return os.path.splitext(fname)[1] in [".cc", ".cp", ".cxx", ".cpp", ".CPP", ".c++", ".C"]
|
|
|
|
|
|
def preprocess():
|
|
if any(src in args.dependencies for src in args.changed_sources):
|
|
sources = args.sources
|
|
elif any(args.changed_sources):
|
|
sources = args.changed_sources
|
|
else:
|
|
sources = args.sources
|
|
csources = []
|
|
cxxsources = []
|
|
for source in sources:
|
|
if is_cxx_source(source):
|
|
cxxsources.append(source)
|
|
elif is_c_source(source):
|
|
csources.append(source)
|
|
try:
|
|
os.makedirs(os.path.dirname(args.output[0]))
|
|
except OSError:
|
|
pass
|
|
|
|
def pp(flags):
|
|
def run(files):
|
|
return subprocess.check_output(args.pp + flags + files)
|
|
|
|
return run
|
|
|
|
try:
|
|
cpus = multiprocessing.cpu_count()
|
|
except NotImplementedError:
|
|
cpus = 1
|
|
p = multiprocessing.dummy.Pool(cpus)
|
|
with open(args.output[0], "wb") as out_file:
|
|
for flags, sources in (
|
|
(args.cflags, csources),
|
|
(args.cxxflags, cxxsources),
|
|
):
|
|
batch_size = (len(sources) + cpus - 1) // cpus
|
|
chunks = [sources[i : i + batch_size] for i in range(0, len(sources), batch_size or 1)]
|
|
for output in p.imap(pp(flags), chunks):
|
|
out_file.write(output)
|
|
|
|
|
|
def write_out(fname, output):
|
|
if output:
|
|
for m, r in [("/", "__"), ("\\", "__"), (":", "@"), ("..", "@@")]:
|
|
fname = fname.replace(m, r)
|
|
with open(args.output_dir + "/" + fname + "." + args.mode, "w") as f:
|
|
f.write("\n".join(output) + "\n")
|
|
|
|
|
|
def process_file(f):
|
|
re_line = re.compile(r"#[line]*\s\d+\s\"([^\"]+)\"")
|
|
if args.mode == _MODE_QSTR:
|
|
re_match = re.compile(r"MP_QSTR_[_a-zA-Z0-9]+")
|
|
elif args.mode == _MODE_COMPRESS:
|
|
re_match = re.compile(r'MP_COMPRESSED_ROM_TEXT\("([^"]*)"\)')
|
|
elif args.mode == _MODE_MODULE:
|
|
re_match = re.compile(r"MP_REGISTER_MODULE\(.*?,\s*.*?\);")
|
|
elif args.mode == _MODE_ROOT_POINTER:
|
|
re_match = re.compile(r"MP_REGISTER_ROOT_POINTER\(.*?\);")
|
|
output = []
|
|
last_fname = None
|
|
for line in f:
|
|
if line.isspace():
|
|
continue
|
|
# match gcc-like output (# n "file") and msvc-like output (#line n "file")
|
|
if line.startswith(("# ", "#line")):
|
|
m = re_line.match(line)
|
|
assert m is not None
|
|
fname = m.group(1)
|
|
if not is_c_source(fname) and not is_cxx_source(fname):
|
|
continue
|
|
if fname != last_fname:
|
|
write_out(last_fname, output)
|
|
output = []
|
|
last_fname = fname
|
|
continue
|
|
for match in re_match.findall(line):
|
|
if args.mode == _MODE_QSTR:
|
|
name = match.replace("MP_QSTR_", "")
|
|
output.append("Q(" + name + ")")
|
|
elif args.mode in (_MODE_COMPRESS, _MODE_MODULE, _MODE_ROOT_POINTER):
|
|
output.append(match)
|
|
|
|
if last_fname:
|
|
write_out(last_fname, output)
|
|
return ""
|
|
|
|
|
|
def cat_together():
|
|
import glob
|
|
import hashlib
|
|
|
|
hasher = hashlib.md5()
|
|
all_lines = []
|
|
outf = open(args.output_dir + "/out", "wb")
|
|
for fname in glob.glob(args.output_dir + "/*." + args.mode):
|
|
with open(fname, "rb") as f:
|
|
lines = f.readlines()
|
|
all_lines += lines
|
|
all_lines.sort()
|
|
all_lines = b"\n".join(all_lines)
|
|
outf.write(all_lines)
|
|
outf.close()
|
|
hasher.update(all_lines)
|
|
new_hash = hasher.hexdigest()
|
|
# print(new_hash)
|
|
old_hash = None
|
|
try:
|
|
with open(args.output_file + ".hash") as f:
|
|
old_hash = f.read()
|
|
except IOError:
|
|
pass
|
|
mode_full = "QSTR"
|
|
if args.mode == _MODE_COMPRESS:
|
|
mode_full = "Compressed data"
|
|
elif args.mode == _MODE_MODULE:
|
|
mode_full = "Module registrations"
|
|
elif args.mode == _MODE_ROOT_POINTER:
|
|
mode_full = "Root pointer registrations"
|
|
if old_hash != new_hash:
|
|
print(mode_full, "updated")
|
|
try:
|
|
# rename below might fail if file exists
|
|
os.remove(args.output_file)
|
|
except:
|
|
pass
|
|
os.rename(args.output_dir + "/out", args.output_file)
|
|
with open(args.output_file + ".hash", "w") as f:
|
|
f.write(new_hash)
|
|
else:
|
|
print(mode_full, "not updated")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
if len(sys.argv) < 6:
|
|
print("usage: %s command mode input_filename output_dir output_file" % sys.argv[0])
|
|
sys.exit(2)
|
|
|
|
class Args:
|
|
pass
|
|
|
|
args = Args()
|
|
args.command = sys.argv[1]
|
|
|
|
if args.command == "pp":
|
|
named_args = {
|
|
s: []
|
|
for s in [
|
|
"pp",
|
|
"output",
|
|
"cflags",
|
|
"cxxflags",
|
|
"sources",
|
|
"changed_sources",
|
|
"dependencies",
|
|
]
|
|
}
|
|
|
|
for arg in sys.argv[1:]:
|
|
if arg in named_args:
|
|
current_tok = arg
|
|
else:
|
|
named_args[current_tok].append(arg)
|
|
|
|
if not named_args["pp"] or len(named_args["output"]) != 1:
|
|
print("usage: %s %s ..." % (sys.argv[0], " ... ".join(named_args)))
|
|
sys.exit(2)
|
|
|
|
for k, v in named_args.items():
|
|
setattr(args, k, v)
|
|
|
|
preprocess()
|
|
sys.exit(0)
|
|
|
|
args.mode = sys.argv[2]
|
|
args.input_filename = sys.argv[3] # Unused for command=cat
|
|
args.output_dir = sys.argv[4]
|
|
args.output_file = None if len(sys.argv) == 5 else sys.argv[5] # Unused for command=split
|
|
|
|
if args.mode not in (_MODE_QSTR, _MODE_COMPRESS, _MODE_MODULE, _MODE_ROOT_POINTER):
|
|
print("error: mode %s unrecognised" % sys.argv[2])
|
|
sys.exit(2)
|
|
|
|
try:
|
|
os.makedirs(args.output_dir)
|
|
except OSError:
|
|
pass
|
|
|
|
if args.command == "split":
|
|
with io.open(args.input_filename, encoding="utf-8") as infile:
|
|
process_file(infile)
|
|
|
|
if args.command == "cat":
|
|
cat_together()
|