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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [sim/] [igen/] [lf.c] - Blame information for rev 438

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1 330 jeremybenn
/* The IGEN simulator generator for GDB, the GNU Debugger.
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   Copyright 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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   Contributed by Andrew Cagney.
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   This file is part of GDB.
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9
   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 3 of the License, or
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   (at your option) any later version.
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14
   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
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#include <stdio.h>
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#include <stdarg.h>
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#include <ctype.h>
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#include "config.h"
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#include "misc.h"
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#include "lf.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#endif
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struct _lf
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{
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  FILE *stream;
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  int line_nr;                  /* nr complete lines written, curr line is line_nr+1 */
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  int indent;
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  int line_blank;
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  const char *name;
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  const char *program;
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  lf_file_references references;
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  lf_file_type type;
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};
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lf *
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lf_open (char *name,
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         char *real_name,
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         lf_file_references references,
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         lf_file_type type, const char *program)
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{
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  /* create a file object */
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  lf *new_lf = ZALLOC (lf);
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  ASSERT (new_lf != NULL);
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  new_lf->references = references;
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  new_lf->type = type;
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  new_lf->name = (real_name == NULL ? name : real_name);
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  new_lf->program = program;
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  /* attach to stdout if pipe */
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  if (!strcmp (name, "-"))
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    {
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      new_lf->stream = stdout;
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    }
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  else
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    {
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      /* create a new file */
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      new_lf->stream = fopen (name, "w");
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      if (new_lf->stream == NULL)
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        {
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          perror (name);
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          exit (1);
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        }
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    }
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  return new_lf;
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}
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void
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lf_close (lf *file)
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{
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  if (file->stream != stdout)
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    {
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      if (fclose (file->stream))
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        {
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          perror ("lf_close.fclose");
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          exit (1);
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        }
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      free (file);
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    }
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}
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int
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lf_putchr (lf *file, const char chr)
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{
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  int nr = 0;
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  if (chr == '\n')
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    {
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      file->line_nr += 1;
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      file->line_blank = 1;
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    }
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  else if (file->line_blank)
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    {
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      int pad;
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      for (pad = file->indent; pad > 0; pad--)
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        putc (' ', file->stream);
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      nr += file->indent;
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      file->line_blank = 0;
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    }
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  putc (chr, file->stream);
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  nr += 1;
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  return nr;
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}
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126
int
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lf_write (lf *file, const char *string, int strlen_string)
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{
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  int nr = 0;
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  int i;
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  for (i = 0; i < strlen_string; i++)
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    nr += lf_putchr (file, string[i]);
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  return nr;
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}
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void
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lf_indent_suppress (lf *file)
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{
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  file->line_blank = 0;
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}
142
 
143
 
144
int
145
lf_putstr (lf *file, const char *string)
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{
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  int nr = 0;
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  const char *chp;
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  if (string != NULL)
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    {
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      for (chp = string; *chp != '\0'; chp++)
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        {
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          nr += lf_putchr (file, *chp);
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        }
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    }
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  return nr;
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}
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159
static int
160
do_lf_putunsigned (lf *file, unsigned u)
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{
162
  int nr = 0;
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  if (u > 0)
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    {
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      nr += do_lf_putunsigned (file, u / 10);
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      nr += lf_putchr (file, (u % 10) + '0');
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    }
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  return nr;
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}
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171
 
172
int
173
lf_putint (lf *file, int decimal)
174
{
175
  int nr = 0;
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  if (decimal == 0)
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    nr += lf_putchr (file, '0');
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  else if (decimal < 0)
179
    {
180
      nr += lf_putchr (file, '-');
181
      nr += do_lf_putunsigned (file, -decimal);
182
    }
183
  else if (decimal > 0)
184
    {
185
      nr += do_lf_putunsigned (file, decimal);
186
    }
187
  else
188
    ASSERT (0);
189
  return nr;
190
}
191
 
192
 
193
int
194
lf_printf (lf *file, const char *fmt, ...)
195
{
196
  int nr = 0;
197
  char buf[1024];
198
  va_list ap;
199
 
200
  va_start (ap, fmt);
201
  vsprintf (buf, fmt, ap);
202
  /* FIXME - this is really stuffed but so is vsprintf() on a sun! */
203
  ASSERT (strlen (buf) < sizeof (buf));
204
  nr += lf_putstr (file, buf);
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  va_end (ap);
206
  return nr;
207
}
208
 
209
 
210
int
211
lf_print__line_ref (lf *file, line_ref *line)
212
{
213
  return lf_print__external_ref (file, line->line_nr, line->file_name);
214
}
215
 
216
int
217
lf_print__external_ref (lf *file, int line_nr, const char *file_name)
218
{
219
  int nr = 0;
220
  switch (file->references)
221
    {
222
    case lf_include_references:
223
      lf_indent_suppress (file);
224
      nr += lf_putstr (file, "#line ");
225
      nr += lf_putint (file, line_nr);
226
      nr += lf_putstr (file, " \"");
227
      nr += lf_putstr (file, file_name);
228
      nr += lf_putstr (file, "\"\n");
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      break;
230
    case lf_omit_references:
231
      nr += lf_putstr (file, "/* ");
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      nr += lf_putstr (file, file_name);
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      nr += lf_putstr (file, ":");
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      nr += lf_putint (file, line_nr);
235
      nr += lf_putstr (file, "*/\n");
236
      break;
237
    }
238
  return nr;
239
}
240
 
241
int
242
lf_print__internal_ref (lf *file)
243
{
244
  int nr = 0;
245
  nr += lf_print__external_ref (file, file->line_nr + 2, file->name);
246
  /* line_nr == last_line, want to number from next */
247
  return nr;
248
}
249
 
250
void
251
lf_indent (lf *file, int delta)
252
{
253
  file->indent += delta;
254
}
255
 
256
 
257
int
258
lf_print__gnu_copyleft (lf *file)
259
{
260
  int nr = 0;
261
  switch (file->type)
262
    {
263
    case lf_is_c:
264
    case lf_is_h:
265
      nr += lf_printf (file, "\
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/* This file is part of GDB.\n\
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\n\
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   Copyright 2002, 2007 Free Software Foundation, Inc.\n\
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\n\
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   This program is free software; you can redistribute it and/or modify\n\
271
   it under the terms of the GNU General Public License as published by\n\
272
   the Free Software Foundation; either version 3 of the License, or\n\
273
   (at your option) any later version.\n\
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\n\
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   This program is distributed in the hope that it will be useful,\n\
276
   but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
277
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n\
278
   GNU General Public License for more details.\n\
279
\n\
280
   You should have received a copy of the GNU General Public License\n\
281
   along with this program.  If not, see <http://www.gnu.org/licenses/>.\n\
282
\n\
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   --\n\
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\n\
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   This file was generated by the program %s */\n\
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", filter_filename (file->program));
287
      break;
288
    default:
289
      ASSERT (0);
290
      break;
291
    }
292
  return nr;
293
}
294
 
295
 
296
int
297
lf_putbin (lf *file, int decimal, int width)
298
{
299
  int nr = 0;
300
  int bit;
301
  ASSERT (width > 0);
302
  for (bit = 1 << (width - 1); bit != 0; bit >>= 1)
303
    {
304
      if (decimal & bit)
305
        nr += lf_putchr (file, '1');
306
      else
307
        nr += lf_putchr (file, '0');
308
    }
309
  return nr;
310
}
311
 
312
int
313
lf_print__this_file_is_empty (lf *file, const char *reason)
314
{
315
  int nr = 0;
316
  switch (file->type)
317
    {
318
    case lf_is_c:
319
    case lf_is_h:
320
      nr += lf_printf (file,
321
                       "/* This generated file (%s) is intentionally left blank",
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                       file->name);
323
      if (reason != NULL)
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        nr += lf_printf (file, " - %s", reason);
325
      nr += lf_printf (file, " */\n");
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      break;
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    default:
328
      ERROR ("Bad switch");
329
    }
330
  return nr;
331
}
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333
int
334
lf_print__ucase_filename (lf *file)
335
{
336
  int nr = 0;
337
  const char *chp = file->name;
338
  while (*chp != '\0')
339
    {
340
      char ch = *chp;
341
      if (islower (ch))
342
        {
343
          nr += lf_putchr (file, toupper (ch));
344
        }
345
      else if (ch == '.')
346
        nr += lf_putchr (file, '_');
347
      else
348
        nr += lf_putchr (file, ch);
349
      chp++;
350
    }
351
  return nr;
352
}
353
 
354
int
355
lf_print__file_start (lf *file)
356
{
357
  int nr = 0;
358
  switch (file->type)
359
    {
360
    case lf_is_h:
361
    case lf_is_c:
362
      nr += lf_print__gnu_copyleft (file);
363
      nr += lf_printf (file, "\n");
364
      nr += lf_printf (file, "#ifndef ");
365
      nr += lf_print__ucase_filename (file);
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      nr += lf_printf (file, "\n");
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      nr += lf_printf (file, "#define ");
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      nr += lf_print__ucase_filename (file);
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      nr += lf_printf (file, "\n");
370
      nr += lf_printf (file, "\n");
371
      break;
372
    default:
373
      ASSERT (0);
374
    }
375
  return nr;
376
}
377
 
378
 
379
int
380
lf_print__file_finish (lf *file)
381
{
382
  int nr = 0;
383
  switch (file->type)
384
    {
385
    case lf_is_h:
386
    case lf_is_c:
387
      nr += lf_printf (file, "\n");
388
      nr += lf_printf (file, "#endif /* _");
389
      nr += lf_print__ucase_filename (file);
390
      nr += lf_printf (file, "_*/\n");
391
      break;
392
    default:
393
      ASSERT (0);
394
    }
395
  return nr;
396
}
397
 
398
 
399
int
400
lf_print__function_type (lf *file,
401
                         const char *type,
402
                         const char *prefix, const char *trailing_space)
403
{
404
  int nr = 0;
405
  nr += lf_printf (file, "%s\\\n(%s)", prefix, type);
406
  if (trailing_space != NULL)
407
    nr += lf_printf (file, "%s", trailing_space);
408
  return nr;
409
}
410
 
411
int
412
lf_print__function_type_function (lf *file,
413
                                  print_function * print_type,
414
                                  const char *prefix,
415
                                  const char *trailing_space)
416
{
417
  int nr = 0;
418
  nr += lf_printf (file, "%s\\\n(", prefix);
419
  nr += print_type (file);
420
  nr += lf_printf (file, ")");
421
  if (trailing_space != NULL)
422
    nr += lf_printf (file, "%s", trailing_space);
423
  return nr;
424
}

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