output-file.c revision 130562 
1/* output-file.c -  Deal with the output file
2   Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1996, 1998, 1999, 2001, 2003
3   Free Software Foundation, Inc.
4
5   This file is part of GAS, the GNU Assembler.
6
7   GAS 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   GAS is distributed in the hope that it will be useful,
13   but WITHOUT ANY WARRANTY; without even the implied warranty of
14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   GNU General Public License for more details.
16
17   You should have received a copy of the GNU General Public License
18   along with GAS; see the file COPYING.  If not, write to
19   the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20   02111-1307, USA.  */
21
22#include <stdio.h>
23
24#include "as.h"
25
26#include "output-file.h"
27
28#ifdef BFD_HEADERS
29#define USE_BFD
30#endif
31
32#ifdef BFD_ASSEMBLER
33#define USE_BFD
34#ifndef TARGET_MACH
35#define TARGET_MACH 0
36#endif
37#endif
38
39#ifdef USE_BFD
40#include "bfd.h"
41bfd *stdoutput;
42
43void
44output_file_create (char *name)
45{
46  if (name[0] == '-' && name[1] == '\0')
47    as_fatal (_("can't open a bfd on stdout %s"), name);
48
49  else if (!(stdoutput = bfd_openw (name, TARGET_FORMAT)))
50    {
51      as_perror (_("FATAL: can't create %s"), name);
52      exit (EXIT_FAILURE);
53    }
54
55  bfd_set_format (stdoutput, bfd_object);
56#ifdef BFD_ASSEMBLER
57  bfd_set_arch_mach (stdoutput, TARGET_ARCH, TARGET_MACH);
58#endif
59  if (flag_traditional_format)
60    stdoutput->flags |= BFD_TRADITIONAL_FORMAT;
61}
62
63void
64output_file_close (char *filename)
65{
66#ifdef BFD_ASSEMBLER
67  /* Close the bfd.  */
68  if (bfd_close (stdoutput) == 0)
69    {
70      bfd_perror (filename);
71      as_perror (_("FATAL: can't close %s\n"), filename);
72      exit (EXIT_FAILURE);
73    }
74#else
75  /* Close the bfd without getting bfd to write out anything by itself.  */
76  if (bfd_close_all_done (stdoutput) == 0)
77    {
78      as_perror (_("FATAL: can't close %s\n"), filename);
79      exit (EXIT_FAILURE);
80    }
81#endif
82  stdoutput = NULL;		/* Trust nobody!  */
83}
84
85#ifndef BFD_ASSEMBLER
86void
87output_file_append (char *where ATTRIBUTE_UNUSED,
88		    long length ATTRIBUTE_UNUSED,
89		    char *filename ATTRIBUTE_UNUSED)
90{
91  abort ();
92}
93#endif
94
95#else
96
97static FILE *stdoutput;
98
99void
100output_file_create (char *name)
101{
102  if (name[0] == '-' && name[1] == '\0')
103    {
104      stdoutput = stdout;
105      return;
106    }
107
108  stdoutput = fopen (name, FOPEN_WB);
109  if (stdoutput == NULL)
110    {
111#ifdef BFD_ASSEMBLER
112      bfd_set_error (bfd_error_system_call);
113#endif
114      as_perror (_("FATAL: can't create %s"), name);
115      exit (EXIT_FAILURE);
116    }
117}
118
119void
120output_file_close (char *filename)
121{
122  if (EOF == fclose (stdoutput))
123    {
124#ifdef BFD_ASSEMBLER
125      bfd_set_error (bfd_error_system_call);
126#endif
127      as_perror (_("FATAL: can't close %s"), filename);
128      exit (EXIT_FAILURE);
129    }
130
131  /* Trust nobody!  */
132  stdoutput = NULL;
133}
134
135void
136output_file_append (char * where, long length, char * filename)
137{
138  for (; length; length--, where++)
139    {
140      (void) putc (*where, stdoutput);
141
142      if (ferror (stdoutput))
143	{
144#ifdef BFD_ASSEMBLER
145	  bfd_set_error (bfd_error_system_call);
146#endif
147	  as_perror (_("Failed to emit an object byte"), filename);
148	  as_fatal (_("can't continue"));
149	}
150    }
151}
152
153#endif
154
155