i#3278 windows file path: temporarily strip dot/slash in path (#3279)

Temporarily strip path such that Windows loader can handle it (xref DrMi#2138).

Issue: #3278

core/win32/os.c

@@ -6478,6 +6478,9 @@ convert_to_NT_file_path(OUT wchar_t *buf, IN const char *fname,
      * to do that? is it to translate . or ..?, better just to do the
      * translation here where we know what's going on */
     /* XXX: if you change the logic here, change convert_to_NT_file_path_wide() */
+    /* XXX i#3278: support /./ style file paths. Remove workaround in cmake function
+     * DynamoRIO_get_full_path.
+     */
     if (name[0] == '\\') {
         name += 1; /* eat the first \ */
         if (name[0] == '\\') {

make/utils_exposed.cmake

@@ -193,6 +193,9 @@ function (DynamoRIO_get_full_path out target loc_suffix)
         set(output_dir ${runtime_dir})
       endif ()
     endif ()
+    # XXX i#3278: DR's win loader can't handle a path like that until full support has
+    # been implemented in convert_to_NT_file_path.
+    string(REPLACE "/./" "/" output_dir ${output_dir})
     if (output_name)
       set(${out} "${output_dir}/${prefix}${output_name}${suffix}" PARENT_SCOPE)
     else ()