[openwrt/openwrt] tools/mkimage: fix build on MacOS arm64

[LEDE Commits]

aparcar pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/8261b85844a0018c6c79e10c1abb581aca102e45

commit 8261b85844a0018c6c79e10c1abb581aca102e45
Author: Sergey V. Lobanov <sergey at lobanov.in>
AuthorDate: Thu Dec 2 19:02:23 2021 +0300

    tools/mkimage: fix build on MacOS arm64
    
    Fixed -no-pie compilation warning on MacOS
    Fixed errors related to using absolute addressing on MacOS arm64
    
    Based on upstream patch from Jessica Clarke and suggestions from Ronny Kotzschmar
    
    Link to original patch and discussion:
    https://github.com/u-boot/u-boot/commit/3b142045e8a7f0ab17b6099e9226296af45967d0
    
    Signed-off-by: Sergey V. Lobanov <sergey at lobanov.in>
---
 .../patches/090-macos-arm64-builing-fix.patch      | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/tools/mkimage/patches/090-macos-arm64-builing-fix.patch b/tools/mkimage/patches/090-macos-arm64-builing-fix.patch
new file mode 100644
index 0000000000..216a8abd35
--- /dev/null
+++ b/tools/mkimage/patches/090-macos-arm64-builing-fix.patch
@@ -0,0 +1,47 @@
+This patch fixes compilation issues on MacOS arm64.
+Based on discussion 
+https://github.com/u-boot/u-boot/commit/3b142045e8a7f0ab17b6099e9226296af45967d0
+
+diff --git a/Makefile b/Makefile
+index b4f1cbc..551041f 100644
+--- a/Makefile
++++ b/Makefile
+@@ -324,11 +324,6 @@ HOSTCC       = $(call os_x_before, 10, 5, "cc", "gcc")
+ KBUILD_HOSTCFLAGS  += $(call os_x_before, 10, 4, "-traditional-cpp")
+ KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
+ 
+-# since Lion (10.7) ASLR is on by default, but we use linker generated lists
+-# in some host tools which is a problem then ... so disable ASLR for these
+-# tools
+-KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
+-
+ # macOS Mojave (10.14.X) 
+ # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
+ KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
+diff --git a/tools/imagetool.h b/tools/imagetool.h
+index 8726792..d1b72ef 100644
+--- a/tools/imagetool.h
++++ b/tools/imagetool.h
+@@ -270,17 +270,20 @@ 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("__TEXT",	\
++		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);	\
+ 		__cat(__stop_, name) = (void *)__cat(pstop_, name);	\
+ 	} while (0)
+-#define SECTION(name)   __attribute__((section("__TEXT, " #name)))
++#define SECTION(name)   __attribute__((section("__DATA, " #name)))
+ 
+ struct image_type_params **__start_image_type, **__stop_image_type;
+ #else