gcc/config/alpha/vms-psxcrt0-64.c

   1 /* VMS 64bit crt0 returning Unix style condition codes .
   2    Copyright (C) 2001 Free Software Foundation, Inc.
   3    Contributed by Douglas B. Rupp (rupp@gnat.com).
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 In addition to the permissions in the GNU General Public License, the
  13 Free Software Foundation gives you unlimited permission to link the
  14 compiled version of this file into combinations with other programs,
  15 and to distribute those combinations without any restriction coming
  16 from the use of this file.  (The General Public License restrictions
  17 do apply in other respects; for example, they cover modification of
  18 the file, and distribution when not linked into a combine
  19 executable.)
  20
  21 GNU CC is distributed in the hope that it will be useful,
  22 but WITHOUT ANY WARRANTY; without even the implied warranty of
  23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24 GNU General Public License for more details.
  25
  26 You should have received a copy of the GNU General Public License
  27 along with GNU CC; see the file COPYING.  If not, write to
  28 the Free Software Foundation, 59 Temple Place - Suite 330,
  29 Boston, MA 02111-1307, USA.  */
  30
  31 #if !defined(__DECC)
  32 You Lose! This file can only be compiled with DEC C.
  33 #else
  34
  35 /* This file can only be compiled with DEC C, due to the call to
  36    lib$establish and the pragmas pointer_size.  */
  37
  38 #pragma __pointer_size short
  39
  40 #include <stdlib.h>
  41 #include <string.h>
  42 #include <ssdef.h>
  43 #include <stsdef.h>
  44 #include <errnodef.h>
  45
  46 extern void decc$main ();
  47 extern int main ();
  48
  49 static int
  50 handler (sigargs, mechargs)
  51      void *sigargs;
  52      void *mechargs;
  53 {
  54   return SS$_RESIGNAL;
  55 }
  56
  57 int
  58 __main (arg1, arg2, arg3, image_file_desc, arg5, arg6)
  59      void *arg1, *arg2, *arg3;
  60      void *image_file_desc;
  61      void *arg5, *arg6)
  62 {
  63   int argc;
  64   char **argv;
  65   char **envp;
  66
  67 #pragma __pointer_size long
  68
  69   int i;
  70   char **long_argv;
  71   char **long_envp;
  72   int status;
  73
  74 #pragma __pointer_size short
  75
  76   lib$establish (handler);
  77   decc$main (arg1, arg2, arg3, image_file_desc,
  78              arg5, arg6, &argc, &argv, &envp);
  79
  80 #pragma __pointer_size long
  81
  82   /* Reallocate argv with 64 bit pointers. */
  83   long_argv = (char **) malloc (sizeof (char *) * (argc + 1));
  84
  85   for (i = 0; i < argc; i++)
  86     long_argv[i] = strdup (argv[i]);
  87
  88   long_argv[argc] = (char *) 0;
  89
  90   long_envp = (char **) malloc (sizeof (char *) * 5);
  91
  92   for (i = 0; envp[i]; i++)
  93     long_envp[i] = strdup (envp[i]);
  94
  95   long_envp[i] = (char *) 0;
  96
  97 #pragma __pointer_size short
  98
  99   status = main (argc, long_argv, long_envp);
 100
 101   /* Map into a range of 0 - 255.  */
 102   status = status & 255;
 103
 104   if (status > 0)
 105     {
 106       int save_status = status;
 107
 108       status = C$_EXIT1 + ((status - 1) << STS$V_MSG_NO);
 109
 110       /* An exit failure status requires a "severe" error.  All status values
 111          are defined in errno with a successful (1) severity but can be
 112          changed to an error (2) severity by adding 1.  In addition for
 113          compatibility with UNIX exit() routines we inhibit a run-time error
 114          message from being generated on exit(1).  */
 115
 116       if (save_status == 1)
 117         {
 118           status++;
 119           status |= STS$M_INHIB_MSG;
 120         }
 121     }
 122
 123   if (status == 0)
 124     status = SS$_NORMAL;
 125
 126   return status;
 127 }
 128 #endif