src/runtime/darwin-os.h

   1 #ifndef _DARWIN_OS_H
   2 #define _DARWIN_OS_H
   3
   4 /* this is meant to be included from bsd-os.h */
   5
   6 #include <mach/mach_init.h>
   7 #include <mach/task.h>
   8 #include <AvailabilityMacros.h>
   9 #include <sys/cdefs.h>
  10
  11 /* man pages claim that the third argument is a sigcontext struct,
  12    but ucontext_t is defined, matches sigcontext where sensible,
  13    offers better access to mcontext, and is of course the SUSv2-
  14    mandated type of the third argument, so we use that instead.
  15    If Apple is going to break ucontext_t out of spite, I'm going
  16    to be cross with them ;) -- PRM */
  17
  18 #if defined(LISP_FEATURE_X86)
  19 #include <sys/ucontext.h>
  20 #include <sys/_types.h>
  21
  22 #if __DARWIN_UNIX03
  23 typedef struct __darwin_ucontext os_context_t;
  24 #else
  25 typedef struct ucontext os_context_t;
  26 #endif
  27
  28
  29 #else
  30 typedef ucontext_t os_context_t;
  31 #endif
  32
  33 #define SIG_MEMORY_FAULT SIGBUS
  34
  35 #define SIG_STOP_FOR_GC (SIGUSR2)
  36
  37 #ifdef LISP_FEATURE_MACH_EXCEPTION_HANDLER
  38 extern mach_port_t current_mach_task;
  39 #endif
  40
  41 void darwin_init(void);
  42
  43 #ifdef LISP_FEATURE_SB_THREAD
  44 #define CANNOT_USE_POSIX_SEM_T
  45 #include <mach/semaphore.h>
  46 typedef semaphore_t os_sem_t;
  47 #endif
  48
  49 #endif /* _DARWIN_OS_H */