mach/mach/mig_support.h

   1 /* Copyright (C) 1993-2016 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 /* Useful declarations and support functions for MiG-generated stubs.  */
  19
  20 #ifndef _MACH_MIG_SUPPORT_H
  21
  22 #define _MACH_MIG_SUPPORT_H     1
  23
  24 #include <mach/std_types.h>
  25 #include <mach/message.h>
  26 #include <sys/types.h>
  27 #include <string.h>
  28
  29 #ifndef __USE_GNU
  30 /* The only problem that has come up so far is __stpncpy being undeclared
  31    below because <string.h> doesn't declare it without __USE_GNU.  We could
  32    work around that problem by just adding the declaration there, or by
  33    eliding the inline functions in the absence of __USE_GNU.  But either of
  34    these would result in unoptimized calls (because no inline version of
  35    __stpncpy will have been defined), and there may be other niggling
  36    problems lurking.  Instead we simply insist on _GNU_SOURCE for
  37    compiling mig output; anyway, that better reflects the fact that mig
  38    output requires nonstandard special support code not found elsewhere.  */
  39 # error mig stubs must be compiled with -D_GNU_SOURCE
  40 #endif
  41
  42 /* MiG initialization.  */
  43 extern void __mig_init (void *__first);
  44 extern void mig_init (void *__first);
  45
  46 /* Shorthand functions for vm_allocate and vm_deallocate on
  47    mach_task_self () (and with ANYWHERE=1).  */
  48 extern void __mig_allocate (vm_address_t *__addr_p, vm_size_t __size);
  49 extern void mig_allocate (vm_address_t *__addr_p, vm_size_t __size);
  50 extern void __mig_deallocate (vm_address_t __addr, vm_size_t __size);
  51 extern void mig_deallocate (vm_address_t __addr, vm_size_t __size);
  52
  53 /* Reply-port management support functions.  */
  54 extern void __mig_dealloc_reply_port (mach_port_t);
  55 extern void mig_dealloc_reply_port (mach_port_t);
  56 extern mach_port_t __mig_get_reply_port (void);
  57 extern mach_port_t mig_get_reply_port (void);
  58 extern void __mig_put_reply_port (mach_port_t);
  59 extern void mig_put_reply_port (mach_port_t);
  60
  61 extern void __mig_reply_setup (const mach_msg_header_t *__request,
  62                                mach_msg_header_t *__reply);
  63 extern void mig_reply_setup (const mach_msg_header_t *__request,
  64                              mach_msg_header_t *__reply);
  65
  66 /* Idiocy support function.  */
  67 extern vm_size_t mig_strncpy (char *__dst, const char *__src, vm_size_t __len);
  68 extern vm_size_t __mig_strncpy (char *__dst, const char *__src, vm_size_t);
  69 __extern_inline vm_size_t
  70 __mig_strncpy (char *__dst, const char *__src, vm_size_t __len)
  71 {
  72   return __stpncpy (__dst, __src, __len) - __dst;
  73 }
  74 __extern_inline vm_size_t
  75 mig_strncpy (char *__dst, const char *__src, vm_size_t __len)
  76 {
  77   return __mig_strncpy (__dst, __src, __len);
  78 }
  79
  80
  81
  82 #endif  /* mach/mig_support.h */