gas/output-file.c

   1 /* output-file.c -  Deal with the output file
   2    Copyright (C) 1987, 1990, 1991 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    GAS is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GAS; see the file COPYING.  If not, write to
  18    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 /*
  21  * Confines all details of emitting object bytes to this module.
  22  * All O/S specific crocks should live here.
  23  * What we lose in "efficiency" we gain in modularity.
  24  * Note we don't need to #include the "as.h" file. No common coupling!
  25  */
  26
  27 /* note that we do need config info.  xoxorich. */
  28
  29 /* #include "style.h" */
  30 #include <stdio.h>
  31
  32 #include "as.h"
  33
  34 #include "output-file.h"
  35 #ifdef BFD_HEADERS
  36 #include "bfd.h"
  37 bfd *stdoutput;
  38 void output_file_create(name)
  39 char *name;
  40 {
  41         if(name[0]=='-' && name[1]=='\0')  {
  42                 as_perror("FATAL: Can't open a bfd on stdout %s ", name);
  43         }
  44         else if ( ! (stdoutput = bfd_openw( name, TARGET_FORMAT )) )
  45             {
  46                     as_perror ("FATAL: Can't create %s", name);
  47                     exit(42);
  48             }
  49         bfd_set_format(stdoutput, bfd_object);
  50 }
  51 /* output_file_create() */
  52
  53
  54 void output_file_close(filename)
  55 char *filename;
  56 {
  57         /* Close the bfd without getting bfd to write out anything by itself */
  58         if ( bfd_close_all_done( stdoutput ) == 0 )
  59             {
  60                     as_perror ("FATAL: Can't close %s\n", filename);
  61                     exit(42);
  62             }
  63         stdoutput = NULL;               /* Trust nobody! */
  64 }                               /* output_file_close() */
  65
  66 void output_file_append(where, length, filename)
  67 char *where;
  68 long length;
  69 char *filename;
  70 {
  71         abort(); /* Never do this */
  72 }
  73
  74 #else
  75
  76 static FILE *stdoutput;
  77
  78 void output_file_create(name)
  79 char *name;
  80 {
  81         if(name[0]=='-' && name[1]=='\0')
  82             stdoutput=stdout;
  83         else if ( ! (stdoutput = fopen( name, "w" )) )
  84             {
  85                     as_perror ("FATAL: Can't create %s", name);
  86                     exit(42);
  87             }
  88 } /* output_file_create() */
  89
  90
  91
  92 void output_file_close(filename)
  93 char *filename;
  94 {
  95         if ( EOF == fclose( stdoutput ) )
  96             {
  97                     as_perror ("FATAL: Can't close %s", filename);
  98                     exit(42);
  99             }
 100         stdoutput = NULL;               /* Trust nobody! */
 101 } /* output_file_close() */
 102
 103 void output_file_append(where, length, filename)
 104 char *where;
 105 long length;
 106 char *filename;
 107 {
 108
 109         for (; length; length--,where++)
 110             {
 111                     (void)putc(*where,stdoutput);
 112                     if(ferror(stdoutput))
 113                         /* if ( EOF == (putc( *where, stdoutput )) ) */
 114                         {
 115                                 as_perror("Failed to emit an object byte", filename);
 116                                 as_fatal("Can't continue");
 117                         }
 118             }
 119 } /* output_file_append() */
 120 #endif
 121
 122 /* end of output-file.c */