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py: Divide "split" and "cat" phases of qstr extraction for better efficiency. 

E.g. for stmhal, accumulated preprocessed output may grow large due to
bloated vendor headers, and then reprocessing tens of megabytes on each
build make take couple of seconds on fast hardware (=> potentially dozens
of seconds on slow hardware). So instead, split once after each change,
and only cat repetitively (guaranteed to be fast, as there're thousands
of lines involved at most).
This commit is contained in:
Paul Sokolovsky 2016-04-19 14:39:08 +03:00
parent 8dd704b019
commit 1b60a6dc4e
2 changed files with 14 additions and 9 deletions
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14
py/makeqstrdefs.py
View File

@ -87,6 +87,8 @@ def cat_together():
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='Generates qstr definitions from a specified source')
parser.add_argument('command',
help='Command (split/cat)')
parser.add_argument('input_filename',
help='Name of the input file (when not specified, the script reads standard input)')
parser.add_argument('output_dir',
@ -100,11 +102,9 @@ if __name__ == "__main__":
except OSError:
pass
if args.input_filename:
infile = open(args.input_filename, 'r')
else:
infile = sys.stdin
if args.command == "split":
with open(args.input_filename) as infile:
process_file(infile)
file_data = process_file(infile)
infile.close()
cat_together()
if args.command == "cat":
cat_together()

9
py/mkrules.mk
View File

@ -90,9 +90,14 @@ $(HEADER_BUILD)/qstr.i.last: $(SRC_QSTR) | $(HEADER_BUILD)/mpversion.h
$(CPP) $(QSTR_GEN_EXTRA_CFLAGS) $(CFLAGS) $? >$(HEADER_BUILD)/qstr.i.last; \
fi
$(QSTR_DEFS_COLLECTED): $(HEADER_BUILD)/qstr.i.last
$(HEADER_BUILD)/qstr.split: $(HEADER_BUILD)/qstr.i.last
$(ECHO) "GEN $@"
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py $(HEADER_BUILD)/qstr.i.last $(HEADER_BUILD)/qstr $(QSTR_DEFS_COLLECTED)
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py split $(HEADER_BUILD)/qstr.i.last $(HEADER_BUILD)/qstr $(QSTR_DEFS_COLLECTED)
$(Q)touch $@
$(QSTR_DEFS_COLLECTED): $(HEADER_BUILD)/qstr.split
$(ECHO) "GEN $@"
$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat $(HEADER_BUILD)/qstr.i.last $(HEADER_BUILD)/qstr $(QSTR_DEFS_COLLECTED)
# $(sort $(var)) removes duplicates
#