[PATCH] mkimage: fix segfault on MacOS arm64

[Sergey V. Lobanov]

mkimage segfaults due ASLR mechasim on MacOS arm64

It is required to use _dyld_get_image_vmaddr_slide()
to prevent segfault on MacOS arm64

This patch ased on the discussion
https://github.com/u-boot/u-boot/commit/3b142045e8a7f0ab17b6099e9226296af45967d0

Thanks to Ronny Kotzschmar and ptpt52 github user

Signed-off-by: Sergey V. Lobanov <sergey at lobanov.in>
---
 tools/imagetool.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/imagetool.h b/tools/imagetool.h
index e229a34ffc..13775ff9b3 100644
--- a/tools/imagetool.h
+++ b/tools/imagetool.h
@@ -271,11 +271,16 @@ int rockchip_copy_image(int fd, struct image_tool_params *mparams);
  *  b) we need a API call to get the respective section symbols */
 #if defined(__MACH__)
 #include <mach-o/getsect.h>
+#include <mach-o/dyld.h>
 
-#define INIT_SECTION(name)  do {					\
+#define INIT_SECTION(name)	struct image_type_params		\
+	**__cat(__start_, name), **__cat(__stop_, name);		\
+	do {								\
 		unsigned long name ## _len;				\
 		char *__cat(pstart_, name) = getsectdata("__DATA",	\
 			#name, &__cat(name, _len));			\
+			__cat(pstart_, name) +=				\
+				_dyld_get_image_vmaddr_slide(0);	\
 		char *__cat(pstop_, name) = __cat(pstart_, name) +	\
 			__cat(name, _len);				\
 		__cat(__start_, name) = (void *)__cat(pstart_, name);	\
@@ -283,7 +288,6 @@ int rockchip_copy_image(int fd, struct image_tool_params *mparams);
 	} while (0)
 #define SECTION(name)   __attribute__((section("__DATA, " #name)))
 
-struct image_type_params **__start_image_type, **__stop_image_type;
 #else
 #define INIT_SECTION(name) /* no-op for ELF */
 #define SECTION(name)   __attribute__((section(#name)))
-- 
2.30.1 (Apple Git-130)