commit d87a3499ac4bb3f834982506c5b00d6470e1f015
Author: Dan Horák <dan@danny.cz>
Date:   Fri Apr 13 10:51:00 2018 +0200

    compute the bootloader stage size to workaround PIE

diff --git a/zipl/src/boot.c b/zipl/src/boot.c
index 9daf47b..279d246 100644
--- a/zipl/src/boot.c
+++ b/zipl/src/boot.c
@@ -21,7 +21,7 @@
 #include "error.h"
 #include "misc.h"
 
-#define DATA_SIZE(x)	((size_t) (&_binary_##x##_bin_size))
+#define DATA_SIZE(x)	((size_t) (&_binary_##x##_bin_end - &_binary_##x##_bin_start))
 #define DATA_ADDR(x)	(&_binary_##x##_bin_start)
 
 #define STAGE2_MAX_SIZE		0x3000