gcc/objc/misc.c

   1 /* GNU Objective C Runtime Miscellanious
   2    Copyright (C) 1993 Free Software Foundation, Inc.
   3
   4 Author: Kresten Krab Thorup
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC is free software; you can redistribute it and/or modify it under the
   9    terms of the GNU General Public License as published by the Free Software
  10    Foundation; either version 2, or (at your option) any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY
  13    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14    FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  15    details.
  16
  17 You should have received a copy of the GNU General Public License along with
  18    GNU CC; see the file COPYING.  If not, write to the Free Software
  19    Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 /* As a special exception, if you link this library with files compiled with
  22    GCC to produce an executable, this does not cause the resulting executable
  23    to be covered by the GNU General Public License. This exception does not
  24    however invalidate any other reasons why the executable file might be
  25    covered by the GNU General Public License.  */
  26
  27 #include "runtime.h"
  28
  29 void objc_error(id object, const char* fmt, va_list);
  30
  31 void (*_objc_error)(id, const char*, va_list) = objc_error;
  32
  33 #ifdef __alpha__
  34 #include <stdlib.h>
  35 extern int write (int, const char*, int);
  36 extern size_t strlen (const char*);
  37 #endif
  38
  39 void
  40 objc_error(id object, const char* fmt, va_list ap)
  41 {
  42   vfprintf (stderr, fmt, ap);
  43   abort ();
  44 }
  45
  46 volatile void
  47 objc_fatal(const char* msg)
  48 {
  49   write(2, msg, (int)strlen((const char*)msg));
  50   abort();
  51 }
  52
  53 void*
  54 __objc_xmalloc(size_t size)
  55 {
  56   void* res = (void*) malloc(size);
  57   if(!res)
  58     objc_fatal("Virtual memory exhausted\n");
  59   return res;
  60 }
  61
  62 void*
  63 __objc_xrealloc(void* mem, size_t size)
  64 {
  65   void* res = (void*) realloc(mem, size);
  66   if(!res)
  67     objc_fatal("Virtual memory exhausted\n");
  68   return res;
  69 }
  70
  71 void*
  72 __objc_xcalloc(size_t nelem, size_t size)
  73 {
  74 #ifdef __alpha__
  75   extern bzero (void *, size_t);
  76 #endif
  77   void* res = (void*)malloc(nelem * size);
  78   if(!res)
  79     objc_fatal("Virtual memory exhausted\n");
  80   bzero (res, nelem * size);
  81   return res;
  82 }