Help/Support Unity framework support vmadder_slide

Red16 · November 30, 2020

below is the code im working with im trying to get unity framework support but it crashes at launch. Any body has suggestions?

uint64_t getRealOffset(uint64_t offset){
for (int i = 0; i < _dyld_image_count(); i++){
const char *image_name = _dyld_get_image_name(i);
if(strcmp(image_name,"UnityFramework") == 0){
return _dyld_get_image_vmaddr_slide(i) + offset;
}
}
return _dyld_get_image_vmaddr_slide(0) + offset;
}

Laxus · December 1, 2020

Try this. If you trying to do a function pointer and it crash, create a function pointer inside a function then call it

uint64_t aslr_for_framework(const char* framework)
{
  int image_count = _dyld_image_count();
	  for (int i = 0; i < image_count; i++)
  {
    if (strstr(_dyld_get_image_name(i), framework))
    {
      return _dyld_get_image_vmaddr_slide(i);
      }
    }
    return 0; // could not find image
}
	uint64_t getRealOffset(uint64_t offset)
{
    uint64_t aslr = aslr_for_framework("UnityFramework"); //frameworks binary name
	    NSLog(@"ASLR %#llx", aslr);
    return aslr+offset;
}
	uint64_t getRealOffset(uint64_t offset);

Updated December 1, 2020 by Laxus

Red16 · December 1, 2020

ayo thanks brother this is working looks like i didn’t return 0 but instead returned regular vmadder slide that fixed the issue:)

Updated December 2, 2020 by Red16

jdcc4723 · December 5, 2020

On 12/1/2020 at 7:01 AM, Laxus said:

Try this. If you trying to do a function pointer and it crash, create a function pointer inside a function then call it


uint64_t aslr_for_framework(const char* framework)
{
  int image_count = _dyld_image_count();
	  for (int i = 0; i < image_count; i++)
  {
    if (strstr(_dyld_get_image_name(i), framework))
    {
      return _dyld_get_image_vmaddr_slide(i);
      }
    }
    return 0; // could not find image
}
	uint64_t getRealOffset(uint64_t offset)
{
    uint64_t aslr = aslr_for_framework("UnityFramework"); //frameworks binary name
	    NSLog(@"ASLR %#llx", aslr);
    return aslr+offset;
}
	uint64_t getRealOffset(uint64_t offset);

nothing happened when I used this code any help plz

@Red16

@Laxus