numam-dpdk/devtools/check-symbol-maps.sh
Thomas Monjalon 272f94e58b devtools: fix symbols check
In some environments, the check of local symbols catch-all
was failing. Note: this script is called during the build.

The reason is that grep returns an error if nothing is found.
The option -e of the shell script makes this error fatal.
It is not always fatal because the grep is in a command substitution.

Fixes: b403498e14 ("build: hide local symbols in shared libraries")

Reported-by: Usama Arif <usama.arif@bytedance.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2022-03-08 22:19:18 +01:00

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#! /bin/sh -e
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2018 Mellanox Technologies, Ltd
cd $(dirname $0)/..
# speed up by ignoring Unicode details
export LC_ALL=C
if [ $# = 0 ] ; then
set -- $(find lib drivers -name '*.map')
fi
ret=0
find_orphan_symbols ()
{
for map in $@ ; do
for sym in $(sed -rn 's,^([^}]*_.*);.*$,\1,p' $map) ; do
if echo $sym | grep -q '^per_lcore_' ; then
symsrc=${sym#per_lcore_}
elif echo $sym | grep -q '^__rte_.*_trace_' ; then
symsrc=${sym#__}
else
symsrc=$sym
fi
if [ -z "$(grep -rlw $symsrc $(dirname $map) | grep -v $map)" ] ; then
echo "$map: $sym"
fi
done
done
}
orphan_symbols=$(find_orphan_symbols $@)
if [ -n "$orphan_symbols" ] ; then
echo "Found only in symbol map file:"
echo "$orphan_symbols" | sed 's,^,\t,'
ret=1
fi
find_duplicate_symbols ()
{
for map in $@ ; do
buildtools/map-list-symbol.sh $map | \
sort | uniq -c | grep -v " 1 $map" || true
done
}
duplicate_symbols=$(find_duplicate_symbols $@)
if [ -n "$duplicate_symbols" ] ; then
echo "Found duplicates in symbol map file:"
echo "$duplicate_symbols"
ret=1
fi
local_miss_maps=$(grep -L 'local: \*;' $@ || true)
if [ -n "$local_miss_maps" ] ; then
echo "Found maps without local catch-all:"
echo "$local_miss_maps"
ret=1
fi
exit $ret