Publish

1 files changed, 45 insertions, 0 deletions

diff --git a/searchlib/src/forcelink.sh b/searchlib/src/forcelink.sh
new file mode 100755
index 00000000000..b088b8363a5
--- /dev/null
+++ b/searchlib/src/forcelink.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+# Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+project=searchlib
+
+if [ X$1 == "Xupdate" ]; then
+    # update forcelink.hpp
+    echo "generating forcelink.hpp..."
+    guard=`pwd | sed -e "s|.*/${project}/||" -e "s|/|_|g"`
+    prefix=forcelink_file_${project}_${guard}_
+    echo "#ifndef GUARD_${project}_${guard}_FORCELINK" > forcelink.hpp
+    echo "#define GUARD_${project}_${guard}_FORCELINK" >> forcelink.hpp
+    echo "" >> forcelink.hpp
+    find . -name "*.cpp" -maxdepth 1 | sed -e "s|.*/\(.*\)\.cpp|void ${prefix}\1();|" >> forcelink.hpp
+    echo "" >> forcelink.hpp
+    echo "void forcelink_${project}_${guard}() {" >> forcelink.hpp
+    find . -name "*.cpp" -maxdepth 1 | sed -e "s|.*/\(.*\)\.cpp|    ${prefix}\1();|" >> forcelink.hpp
+    echo "}" >> forcelink.hpp
+    echo "" >> forcelink.hpp
+    echo "#endif" >> forcelink.hpp
+    echo "invoke 'forcelink_${project}_${guard}()' to force link this directory"
+
+    # update .cpp files
+    for file in *.cpp; do
+	name=`echo "${prefix}${file}" | sed 's|\(.*\)\.cpp|\1|'`
+        found=`grep ${name} ${file} | wc -l`
+	if [ $found == "0" ]; then
+	    echo "updating ${file}..."
+	    echo ""                                 >> $file
+	    echo "// this function was added by $0" >> $file
+	    echo "void ${name}() {}"                >> $file
+        fi
+    done
+else
+    echo "This is a small utility script that might help out when trying to"
+    echo "force the linkage of object files. When run in a subdirectory within"
+    echo "${project}, it will create a 'forcelink.hpp' file that contains the"
+    echo "force linkage wrapping code. It will also update any .cpp files in the"
+    echo "directory with appropriate dummy functions to allow consistent force"
+    echo "linkage. Note that this script will make a large"
+    echo "number of assumptions; USE AT YOUR OWN RISK!"
+    echo ""
+    echo "if you feel lucky, run:"
+    echo "$0 update"
+fi