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/* Extracted from boehm-gc/os_dep.c on Darwin.  It caused an ICE when

   trying to merge alias information from two pointers that had

   different type memory tags.  */

typedef int thread_state_flavor_t;

typedef int exception_behavior_t;

typedef unsigned int exception_mask_t;

typedef unsigned int exception_handler_t;

typedef unsigned int mach_msg_type_number_t;

static struct {

   mach_msg_type_number_t count;

   exception_mask_t masks[16];

   exception_handler_t ports[16];

   thread_state_flavor_t flavors[16];

} GC_old_exc_ports;

typedef exception_handler_t *exception_handler_array_t;

typedef thread_state_flavor_t *exception_flavor_array_t;

int task_get_exception_ports

(

  mach_msg_type_number_t *masksCnt,

  exception_handler_array_t old_handlers,

  exception_flavor_array_t old_flavors

);

void GC_dirty_init()

{

   task_get_exception_ports(GC_old_exc_ports.masks,

                           GC_old_exc_ports.ports,

                           GC_old_exc_ports.flavors);

}