Add a hacky script to sanity check symbols exported by libsquashfs

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>

1 files changed, 38 insertions, 0 deletions

diff --git a/scripts/lib_syms_sane.sh b/scripts/lib_syms_sane.sh
new file mode 100755
index 0000000..d49ff1b
--- /dev/null
+++ b/scripts/lib_syms_sane.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+
+SPC="[[:space:]]\+"
+HEXNUM="[0-9a-fA-F]\+"
+NUM="[0-9]\+"
+
+WINE_PATTERN="^${SPC}${HEXNUM}${SPC}${NUM}${SPC}"
+ELF_PATTERN="^${SPC}${NUM}:${SPC}${HEXNUM}${SPC}${NUM}${SPC}"
+
+symbols_from_file() {
+	case "$1" in
+	*.dll)
+		winedump -j export "$1" | grep "$WINE_PATTERN" | \
+			sed "s/$WINE_PATTERN//g"
+		;;
+	*)
+		readelf -TW -s "$1" | grep "$ELF_PATTERN" | grep -v "UND" | \
+			sed "s/$ELF_PATTERN//g" | grep -o "${NUM}${SPC}.\+$" | \
+			sed "s/^${NUM}${SPC}//g"
+	esac
+}
+
+symbols_from_file "$1" | grep -q "^sqfs_.*"
+
+if [ "$?" != "0" ]; then
+	symbols_from_file "$1"
+	echo "ERROR: No symbols with sqfs_ prefix found!"
+	exit 1
+fi
+
+symbols_from_file "$1" | grep -v "^sqfs_"
+
+if [ "$?" != "1" ]; then
+	echo "ERROR: Symbols without sqfs_ prefix found!"
+	exit 1
+fi
+
+exit 0