linux-yocto/scripts/nsdeps
Masahiro Yamada 62aa6f2ede scripts/nsdeps: get 'make nsdeps' working again
Since commit cdd30ebb1b ("module: Convert symbol namespace to string
literal"), when MODULE_IMPORT_NS() is missing, 'make nsdeps' inserts
pointless code:

    MODULE_IMPORT_NS("ns");

Here, "ns" is not a namespace, but the variable in the semantic patch.
It must not be quoted. Instead, a string literal must be passed to
Coccinelle.

Fixes: cdd30ebb1b ("module: Convert symbol namespace to string literal")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-03 08:22:25 -08:00

1.6 KiB

#!/bin/sh

SPDX-License-Identifier: GPL-2.0

Linux kernel symbol namespace import generator

This script requires a minimum spatch version.

SPATCH_REQ_VERSION="1.0.4"

DIR="$(dirname $(readlink -f $0))/.." SPATCH="which ${SPATCH:=spatch}" if [ ! -x "$SPATCH" ]; then echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/' exit 1 fi

SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}')

if ! { echo "$SPATCH_REQ_VERSION"; echo "$SPATCH_VERSION"; } | sort -CV ; then echo "spatch needs to be version $SPATCH_REQ_VERSION or higher" exit 1 fi

generate_deps_for_ns() { $SPATCH --very-quiet --in-place --sp-file
$srctree/scripts/coccinelle/misc/add_namespace.cocci -D nsdeps -D ns="$1" $2 }

generate_deps() { local mod=${1%.ko:} shift local namespaces="$" local mod_source_files=$(sed "s|^(.).o$|${srcroot}/\1.c|" $mod.mod)

for ns in $namespaces; do
	echo "Adding namespace $ns to module $mod.ko."
	generate_deps_for_ns $ns "$mod_source_files"
	# sort the imports
	for source_file in $mod_source_files; do
		sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp
		offset=$(wc -l ${source_file}.tmp | awk '{print $1;}')
		cat $source_file | grep MODULE_IMPORT_NS | LC_ALL=C sort -u >> ${source_file}.tmp
		tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp
		if ! diff -q ${source_file} ${source_file}.tmp; then
			mv ${source_file}.tmp ${source_file}
		else
			rm ${source_file}.tmp
		fi
	done
done

}

while read line do generate_deps $line done < modules.nsdeps