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-rw-r--r--include/linux/decompress/mm.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 5032b9a31ae7..ad5ec1d0475e 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -14,11 +14,21 @@
/* Code active when included from pre-boot environment: */
+/*
+ * Some architectures want to ensure there is no local data in their
+ * pre-boot environment, so that data can arbitarily relocated (via
+ * GOT references). This is achieved by defining STATIC_RW_DATA to
+ * be null.
+ */
+#ifndef STATIC_RW_DATA
+#define STATIC_RW_DATA static
+#endif
+
/* A trivial malloc implementation, adapted from
* malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
*/
-static unsigned long malloc_ptr;
-static int malloc_count;
+STATIC_RW_DATA unsigned long malloc_ptr;
+STATIC_RW_DATA int malloc_count;
static void *malloc(int size)
{