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main: log time taken to analyze each function #1638

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merged 2 commits into from
Jul 13, 2023
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main: log time taken to analyze each function #1638

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main: log time taken to analyze each function
williballenthin Jul 13, 2023
0511ef7
changelog
williballenthin Jul 13, 2023
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -64,6 +64,7 @@

### Development
- update ATT&CK/MBC data for linting #1568 @mr-tz
- log time taken to analyze each function #1290 @williballenthin

### Raw diffs
- [capa v5.1.0...master](https://github.com/mandiant/capa/compare/v5.1.0...master)
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14 changes: 13 additions & 1 deletion capa/main.py
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Expand Up @@ -266,6 +266,7 @@ def pbar(s, *args, **kwargs):

pb = pbar(functions, desc="matching", unit=" functions", postfix="skipped 0 library functions", leave=False)
for f in pb:
t0 = time.time()
if extractor.is_library_function(f.address):
function_name = extractor.get_function_name(f.address)
logger.debug("skipping library function 0x%x (%s)", f.address, function_name)
Expand All @@ -284,7 +285,18 @@ def pbar(s, *args, **kwargs):
feature_counts.functions += (
rdoc.FunctionFeatureCount(address=frz.Address.from_capa(f.address), count=feature_count),
)
logger.debug("analyzed function 0x%x and extracted %d features", f.address, feature_count)
t1 = time.time()

match_count = sum(len(res) for res in function_matches.values())
match_count += sum(len(res) for res in bb_matches.values())
match_count += sum(len(res) for res in insn_matches.values())
logger.debug(
"analyzed function 0x%x and extracted %d features, %d matches in %0.02fs",
f.address,
feature_count,
match_count,
t1 - t0,
)

for rule_name, res in function_matches.items():
all_function_matches[rule_name].extend(res)
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