1 files changed, 103 insertions, 0 deletions
diff --git a/src/pmdk/src/common/dlsym.h b/src/pmdk/src/common/dlsym.h
new file mode 100644
index 000000000..dd4f58bf3
--- /dev/null
+++ b/src/pmdk/src/common/dlsym.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* Copyright 2016-2020, Intel Corporation */
+
+/*
+ * dlsym.h -- dynamic linking utilities with library-specific implementation
+ */
+
+#ifndef PMDK_DLSYM_H
+#define PMDK_DLSYM_H 1
+
+#include "out.h"
+
+#if defined(USE_LIBDL) && !defined(_WIN32)
+
+#include <dlfcn.h>
+
+/*
+ * util_dlopen -- calls real dlopen()
+ */
+static inline void *
+util_dlopen(const char *filename)
+{
+	LOG(3, "filename %s", filename);
+
+	return dlopen(filename, RTLD_NOW);
+}
+
+/*
+ * util_dlerror -- calls real dlerror()
+ */
+static inline char *
+util_dlerror(void)
+{
+	return dlerror();
+}
+
+/*
+ * util_dlsym -- calls real dlsym()
+ */
+static inline void *
+util_dlsym(void *handle, const char *symbol)
+{
+	LOG(3, "handle %p symbol %s", handle, symbol);
+
+	return dlsym(handle, symbol);
+}
+
+/*
+ * util_dlclose -- calls real dlclose()
+ */
+static inline int
+util_dlclose(void *handle)
+{
+	LOG(3, "handle %p", handle);
+
+	return dlclose(handle);
+}
+
+#else /* empty functions */
+
+/*
+ * util_dlopen -- empty function
+ */
+static inline void *
+util_dlopen(const char *filename)
+{
+	errno = ENOSYS;
+	return NULL;
+}
+
+/*
+ * util_dlerror -- empty function
+ */
+static inline char *
+util_dlerror(void)
+{
+	errno = ENOSYS;
+	return NULL;
+}
+
+/*
+ * util_dlsym -- empty function
+ */
+static inline void *
+util_dlsym(void *handle, const char *symbol)
+{
+	errno = ENOSYS;
+	return NULL;
+}
+
+/*
+ * util_dlclose -- empty function
+ */
+static inline int
+util_dlclose(void *handle)
+{
+	errno = ENOSYS;
+	return 0;
+}
+
+#endif
+
+#endif