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mkimage: fix segfault on MacOS arm64

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mkimage segfaults due to the ASLR mechanism on MacOS arm64

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

This patch is based on the discussion
3b142045e8

Thanks to Jessica Clarke, Ronny Kotzschmar and ptpt52 github user

Reviewed-by: Jessica Clarke <jrtc27@jrtc27.com>
Signed-off-by: Sergey V. Lobanov <sergey@lobanov.in>
This commit is contained in:
Sergey V. Lobanov
2022-01-25 02:29:44 +03:00
committed by Tom Rini
parent 1047af5c65
commit 54ee416050
1 changed files with 2 additions and 0 deletions
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2
tools/imagetool.h
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@@ -275,11 +275,13 @@ 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 { \
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); \