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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [igen/] [lf.c] - Blame information for rev 272

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1 24 jeremybenn 
/* The IGEN simulator generator for GDB, the GNU Debugger.
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3 
   Copyright 2002, 2007, 2008 Free Software Foundation, Inc.
4 
 
5 
   Contributed by Andrew Cagney.
6 
 
7 
   This file is part of GDB.
8 
 
9 
   This program is free software; you can redistribute it and/or modify
10 
   it under the terms of the GNU General Public License as published by
11 
   the Free Software Foundation; either version 3 of the License, or
12 
   (at your option) any later version.
13 
 
14 
   This program is distributed in the hope that it will be useful,
15 
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16 
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
18 
 
19 
   You should have received a copy of the GNU General Public License
20 
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
21 
 
22 
 
23 
 
24 
#include <stdio.h>
25 
#include <stdarg.h>
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#include <ctype.h>
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28 
#include "config.h"
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#include "misc.h"
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#include "lf.h"
31 
 
32 
#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
35 
 
36 
#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
43 
 
44 
struct _lf
45 
{
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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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56 
 
57 
lf *
58 
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)
62 
{
63 
  /* 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 */
71 
  if (!strcmp (name, "-"))
72 
    {
73 
      new_lf->stream = stdout;
74 
    }
75 
  else
76 
    {
77 
      /* create a new file */
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      new_lf->stream = fopen (name, "w");
79 
      if (new_lf->stream == NULL)
80 
        {
81 
          perror (name);
82 
          exit (1);
83 
        }
84 
    }
85 
  return new_lf;
86 
}
87 
 
88 
 
89 
void
90 
lf_close (lf *file)
91 
{
92 
  if (file->stream != stdout)
93 
    {
94 
      if (fclose (file->stream))
95 
        {
96 
          perror ("lf_close.fclose");
97 
          exit (1);
98 
        }
99 
      free (file);
100 
    }
101 
}
102 
 
103 
 
104 
int
105 
lf_putchr (lf *file, const char chr)
106 
{
107 
  int nr = 0;
108 
  if (chr == '\n')
109 
    {
110 
      file->line_nr += 1;
111 
      file->line_blank = 1;
112 
    }
113 
  else if (file->line_blank)
114 
    {
115 
      int pad;
116 
      for (pad = file->indent; pad > 0; pad--)
117 
        putc (' ', file->stream);
118 
      nr += file->indent;
119 
      file->line_blank = 0;
120 
    }
121 
  putc (chr, file->stream);
122 
  nr += 1;
123 
  return nr;
124 
}
125 
 
126 
int
127 
lf_write (lf *file, const char *string, int strlen_string)
128 
{
129 
  int nr = 0;
130 
  int i;
131 
  for (i = 0; i < strlen_string; i++)
132 
    nr += lf_putchr (file, string[i]);
133 
  return nr;
134 
}
135 
 
136 
 
137 
void
138 
lf_indent_suppress (lf *file)
139 
{
140 
  file->line_blank = 0;
141 
}
142 
 
143 
 
144 
int
145 
lf_putstr (lf *file, const char *string)
146 
{
147 
  int nr = 0;
148 
  const char *chp;
149 
  if (string != NULL)
150 
    {
151 
      for (chp = string; *chp != '\0'; chp++)
152 
        {
153 
          nr += lf_putchr (file, *chp);
154 
        }
155 
    }
156 
  return nr;
157 
}
158 
 
159 
static int
160 
do_lf_putunsigned (lf *file, unsigned u)
161 
{
162 
  int nr = 0;
163 
  if (u > 0)
164 
    {
165 
      nr += do_lf_putunsigned (file, u / 10);
166 
      nr += lf_putchr (file, (u % 10) + '0');
167 
    }
168 
  return nr;
169 
}
170 
 
171 
 
172 
int
173 
lf_putint (lf *file, int decimal)
174 
{
175 
  int nr = 0;
176 
  if (decimal == 0)
177 
    nr += lf_putchr (file, '0');
178 
  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);
205 
  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");
229 
      break;
230 
    case lf_omit_references:
231 
      nr += lf_putstr (file, "/* ");
232 
      nr += lf_putstr (file, file_name);
233 
      nr += lf_putstr (file, ":");
234 
      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, "\
266 
/* This file is part of GDB.\n\
267 
\n\
268 
   Copyright 2002, 2007 Free Software Foundation, Inc.\n\
269 
\n\
270 
   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\
274 
\n\
275 
   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\
283 
   --\n\
284 
\n\
285 
   This file was generated by the program %s */\n\
286 
", 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",
322 
                       file->name);
323 
      if (reason != NULL)
324 
        nr += lf_printf (file, " - %s", reason);
325 
      nr += lf_printf (file, " */\n");
326 
      break;
327 
    default:
328 
      ERROR ("Bad switch");
329 
    }
330 
  return nr;
331 
}
332 
 
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);
366 
      nr += lf_printf (file, "\n");
367 
      nr += lf_printf (file, "#define ");
368 
      nr += lf_print__ucase_filename (file);
369 
      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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