runtime/objc-sel-table.s

   1 #include <TargetConditionals.h>
   2 #include <mach/vm_param.h>
   3
   4 #if __LP64__
   5 # define PTR(x) .quad x
   6 #else
   7 # define PTR(x) .long x
   8 #endif
   9
  10 // These offsets are populated by the dyld shared cache builder.
  11 // They point to memory allocatd elsewhere in the shared cache.
  12
  13 .section __TEXT,__objc_opt_ro
  14 .align 3
  15 .private_extern __objc_opt_data
  16 __objc_opt_data:
  17 .long 15 /* table.version */
  18 .long 0 /* table.flags */
  19 .long 0 /* table.selopt_offset */
  20 .long 0 /* table.headeropt_ro_offset */
  21 .long 0 /* table.clsopt_offset */
  22 .long 0 /* table.protocolopt_offset */
  23 .long 0 /* table.headeropt_rw_offset */
  24 .space PAGE_MAX_SIZE-28
  25
  26
  27 /* section of pointers that the shared cache optimizer wants to know about */
  28 .section __DATA,__objc_opt_ptrs
  29 .align 3
  30
  31 #if TARGET_OS_OSX  &&  __i386__
  32 // old ABI
  33 .globl .objc_class_name_Protocol
  34 PTR(.objc_class_name_Protocol)
  35 #else
  36 // new ABI
  37 .globl _OBJC_CLASS_$_Protocol
  38 PTR(_OBJC_CLASS_$_Protocol)
  39 #endif