mirror of https://gerrit.osmocom.org/libosmocore
add contrib/talloc_count.sh
When a user reports a memory leak with a talloc report, this script is useful to quickly get a handle of what is being leaked. The alternative is eyeballing the talloc report for a very long time. Change-Id: I5b3242dd6e0649925ac6abfd1e96625c682b8934
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#!/bin/sh
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#
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# Print a summary of how often each named object appears in a talloc report.
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#
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# usage:
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# talloc_count.sh my_talloc_report.txt
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# or:
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# osmo_interact_vty.py -p 4242 -c 'show talloc-context application full' | talloc_count.sh
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#
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# produces output like:
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# 1 struct foo
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# 1 struct log_info
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# 1 struct log_info_cat
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# 21 msgb
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# 1391 SCCP-SCOC(N)[N]
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# 1402 struct osmo_fsm_inst
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# [...]
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f="$1"
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tmpdir="$(mktemp -d)"
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trap "rm -rf \"$tmpdir\"" EXIT
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# without input file, read stdin
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if [ "x$f" = "x" ]; then
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f="$tmpdir/input"
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cat > $f
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fi
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mangled="$tmpdir/mangled"
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grep contains "$f" \
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| sed 's/[ \t]*contains.*//' \
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| sed 's/^[ \t]*//' \
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| sed 's/[ \t][ \t]*/ /g' \
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| grep -v '^$' \
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| grep -v '^[0-9]\+$' \
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| sed 's/0x[0-9a-fA-F]\+/N/g' \
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| sed 's/[0-9]\+/N/g' \
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| sort \
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> "$mangled"
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count() {
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name="$1"
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nr="$(grep -Fx "$name" "$mangled" | wc -l)"
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printf "%6d $name\\n" $nr
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}
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{
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cat "$mangled" | uniq | while read type; do
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count "$type"
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done
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} | sort -h
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