diff --git a/osdep.c b/osdep.c
index 83f5a77ccc4d..76bfa2663f0b 100644
--- a/osdep.c
+++ b/osdep.c
@@ -294,6 +294,16 @@ void *qemu_mallocz(size_t size)
     return ptr;
 }
 
+char *qemu_strdup(const char *str)
+{
+    char *ptr;
+    ptr = qemu_malloc(strlen(str) + 1);
+    if (!ptr)
+        return NULL;
+    strcpy(ptr, str);
+    return ptr;
+}
+
 /****************************************************************/
 /* printf support */
 
diff --git a/osdep.h b/osdep.h
index 1c14de4c5ee1..dfe80bcf98e8 100644
--- a/osdep.h
+++ b/osdep.h
@@ -10,6 +10,7 @@ void qemu_printf(const char *fmt, ...);
 void *qemu_malloc(size_t size);
 void *qemu_mallocz(size_t size);
 void qemu_free(void *ptr);
+char *qemu_strdup(const char *str);
 
 void *get_mmap_addr(unsigned long size);