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-rw-r--r--scripts/nsdeps63
1 files changed, 63 insertions, 0 deletions
diff --git a/scripts/nsdeps b/scripts/nsdeps
new file mode 100644
index 000000000..dab4c1a0e
--- /dev/null
+++ b/scripts/nsdeps
@@ -0,0 +1,63 @@
+#!/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_REQ_VERSION_NUM=$(echo $SPATCH_REQ_VERSION | ${DIR}/scripts/ld-version.sh)
+SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}')
+SPATCH_VERSION_NUM=$(echo $SPATCH_VERSION | ${DIR}/scripts/ld-version.sh)
+
+if [ "$SPATCH_VERSION_NUM" -lt "$SPATCH_REQ_VERSION_NUM" ] ; then
+ echo "spatch needs to be version $SPATCH_REQ_VERSION or higher"
+ exit 1
+fi
+
+if [ "$KBUILD_EXTMOD" ]; then
+ src_prefix=
+else
+ src_prefix=$srctree/
+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="`cat $mod.mod | sed -n 1p \
+ | sed -e 's/\.o/\.c/g' \
+ | sed "s|[^ ]* *|${src_prefix}&|g"`"
+ 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 | LANG=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