1 files changed, 73 insertions, 0 deletions
diff --git a/scripts/set-abi-version.sh b/scripts/set-abi-version.sh
new file mode 100755
index 0000000000..a61c842c6d
--- /dev/null
+++ b/scripts/set-abi-version.sh
@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+# 
+# Copyright (C) 2020 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+SELF=${0##*/}
+
+[ -n "$PATCHELF" ] || {
+  echo "$SELF: patchelf command not defined (PATCHELF variable not set)"
+  exit 1
+}
+
+ABI_VER="$1"
+PATCH_DIR="$2"
+REF_LIST="$3"
+
+[ -n "$ABI_VER" -a -n "$PATCH_DIR" ] || {
+	echo "$SELF: no ABI version or files/directories specified"
+	echo "usage: $SELF <VERSION> [<PATH>...]"
+	exit 1
+}
+
+cmd() {
+	echo "$@" >&2
+	"$@" || exit 1
+}
+
+gen_lib_list() {
+	while read F; do
+		F="${F##*/}"
+		case "$F" in
+			lib*.so*);;
+			*) continue;;
+		esac
+		echo -n "$F:"
+	done < "$REF_LIST"
+}
+
+find "$PATCH_DIR" -type f -a -name 'lib*.so*' | \
+(
+	while read F; do
+		NEW_F="${F%%.so*}.so.$ABI_VER"
+		NEW_NAME="${NEW_F##*/}"
+		[ "$NEW_F" != "$F" ] || continue
+		cmd mv "$F" "$NEW_F"
+		[ "$REF_LIST" ] || cmd ln -s "$NEW_NAME" "$F"
+		cmd $PATCHELF --set-soname "$NEW_NAME" "$NEW_F"
+	done
+)
+
+[ -n "$REF_LIST" ] || exit 0
+
+LIBS="$(gen_lib_list)"
+LIBS="${LIBS%%:}"
+find "$PATCH_DIR" -type f -a -exec file {} \; | \
+  sed -n -e 's/^\(.*\):.*ELF.*\(executable\|relocatable\|shared object\).*,.*/\1:\2/p' | \
+(
+	IFS=":"
+	while read F S; do
+		$PATCHELF --print-needed "$F" | while read L; do
+			BASE_L="${L%%.so*}"
+			for lib in $LIBS; do
+				base_lib="${lib%%.so*}"
+				[ "$BASE_L" = "$base_lib" ] || continue
+				[ "$l" = "$lib" ] && continue
+				cmd $PATCHELF --replace-needed "$L" "$lib" "$F"
+			done
+		done
+	done
+	true
+)