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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [libiberty/] [testsuite/] [test-demangle.c] - Blame information for rev 148

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1 21 khays
/* Demangler test program,
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   Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
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   Written by Zack Weinberg <zack@codesourcery.com
4
 
5
   This file is part of GNU libiberty.
6
 
7
   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 2 of the License, or
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   (at your option) any later version.
11
 
12
   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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17
   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
21
 
22
#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ansidecl.h"
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#include <stdio.h>
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#include "libiberty.h"
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#include "demangle.h"
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#if HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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36
struct line
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{
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  size_t alloced;
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  char *data;
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};
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42
static unsigned int lineno;
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44
/* Safely read a single line of arbitrary length from standard input.  */
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#define LINELEN 80
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static void
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get_line(buf)
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     struct line *buf;
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{
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  char *data = buf->data;
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  size_t alloc = buf->alloced;
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  size_t count = 0;
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  int c;
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57
  if (data == 0)
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    {
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      data = xmalloc (LINELEN);
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      alloc = LINELEN;
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    }
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  /* Skip comment lines.  */
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  while ((c = getchar()) == '#')
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    {
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      while ((c = getchar()) != EOF && c != '\n');
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      lineno++;
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    }
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  /* c is the first character on the line, and it's not a comment
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     line: copy this line into the buffer and return.  */
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  while (c != EOF && c != '\n')
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    {
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      if (count + 1 >= alloc)
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        {
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          alloc *= 2;
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          data = xrealloc (data, alloc);
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        }
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      data[count++] = c;
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      c = getchar();
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    }
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  lineno++;
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  data[count] = '\0';
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  buf->data = data;
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  buf->alloced = alloc;
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}
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/* If we have mmap() and mprotect(), copy the string S just before a
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   protected page, so that if the demangler runs over the end of the
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   string we'll get a fault, and return the address of the new string.
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   If no mmap, or it fails, or it looks too hard, just return S.  */
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94
#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#if defined(MAP_ANON) && ! defined (MAP_ANONYMOUS)
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#define MAP_ANONYMOUS MAP_ANON
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#endif
100
 
101
static const char *
102
protect_end (const char * s)
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{
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#if defined(HAVE_MMAP) && defined (MAP_ANONYMOUS)
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  size_t pagesize = getpagesize();
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  static char * buf;
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  size_t s_len = strlen (s);
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  char * result;
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110
  /* Don't try if S is too long.  */
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  if (s_len >= pagesize)
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    return s;
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114
  /* Allocate one page of allocated space followed by an unmapped
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     page.  */
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  if (buf == NULL)
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    {
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      buf = mmap (NULL, pagesize * 2, PROT_READ | PROT_WRITE,
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                  MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
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      if (! buf)
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        return s;
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      munmap (buf + pagesize, pagesize);
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    }
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125
  result = buf + (pagesize - s_len - 1);
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  memcpy (result, s, s_len + 1);
127
  return result;
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#else
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  return s;
130
#endif
131
}
132
 
133
static void
134
fail (lineno, opts, in, out, exp)
135
     int lineno;
136
     const char *opts;
137
     const char *in;
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     const char *out;
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     const char *exp;
140
{
141
  printf ("\
142
FAIL at line %d, options %s:\n\
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in:  %s\n\
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out: %s\n\
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exp: %s\n",
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          lineno, opts, in, out != NULL ? out : "(null)", exp);
147
}
148
 
149
/* The tester operates on a data file consisting of groups of lines:
150
   options
151
   input to be demangled
152
   expected output
153
 
154
   Supported options:
155
     --format=<name>     Sets the demangling style.
156
     --no-params         There are two lines of expected output; the first
157
                         is with DMGL_PARAMS, the second is without it.
158
     --is-v3-ctor        Calls is_gnu_v3_mangled_ctor on input; expected
159
                         output is an integer representing ctor_kind.
160
     --is-v3-dtor        Likewise, but for dtors.
161
     --ret-postfix       Passes the DMGL_RET_POSTFIX option
162
 
163
   For compatibility, just in case it matters, the options line may be
164
   empty, to mean --format=auto.  If it doesn't start with --, then it
165
   may contain only a format name.
166
*/
167
 
168
int
169
main(argc, argv)
170
     int argc;
171
     char **argv;
172
{
173
  enum demangling_styles style = auto_demangling;
174
  int no_params;
175
  int is_v3_ctor;
176
  int is_v3_dtor;
177
  int ret_postfix;
178
  struct line format;
179
  struct line input;
180
  struct line expect;
181
  char *result;
182
  int failures = 0;
183
  int tests = 0;
184
 
185
  if (argc > 1)
186
    {
187
      fprintf (stderr, "usage: %s < test-set\n", argv[0]);
188
      return 2;
189
    }
190
 
191
  format.data = 0;
192
  input.data = 0;
193
  expect.data = 0;
194
 
195
  for (;;)
196
    {
197
      const char *inp;
198
 
199
      get_line (&format);
200
      if (feof (stdin))
201
        break;
202
 
203
      get_line (&input);
204
      get_line (&expect);
205
 
206
      inp = protect_end (input.data);
207
 
208
      tests++;
209
 
210
      no_params = 0;
211
      ret_postfix = 0;
212
      is_v3_ctor = 0;
213
      is_v3_dtor = 0;
214
      if (format.data[0] == '\0')
215
        style = auto_demangling;
216
      else if (format.data[0] != '-')
217
        {
218
          style = cplus_demangle_name_to_style (format.data);
219
          if (style == unknown_demangling)
220
            {
221
              printf ("FAIL at line %d: unknown demangling style %s\n",
222
                      lineno, format.data);
223
              failures++;
224
              continue;
225
            }
226
        }
227
      else
228
        {
229
          char *p;
230
          char *opt;
231
 
232
          p = format.data;
233
          while (*p != '\0')
234
            {
235
              char c;
236
 
237
              opt = p;
238
              p += strcspn (p, " \t=");
239
              c = *p;
240
              *p = '\0';
241
              if (strcmp (opt, "--format") == 0 && c == '=')
242
                {
243
                  char *fstyle;
244
 
245
                  *p = c;
246
                  ++p;
247
                  fstyle = p;
248
                  p += strcspn (p, " \t");
249
                  c = *p;
250
                  *p = '\0';
251
                  style = cplus_demangle_name_to_style (fstyle);
252
                  if (style == unknown_demangling)
253
                    {
254
                      printf ("FAIL at line %d: unknown demangling style %s\n",
255
                              lineno, fstyle);
256
                      failures++;
257
                      continue;
258
                    }
259
                }
260
              else if (strcmp (opt, "--no-params") == 0)
261
                no_params = 1;
262
              else if (strcmp (opt, "--is-v3-ctor") == 0)
263
                is_v3_ctor = 1;
264
              else if (strcmp (opt, "--is-v3-dtor") == 0)
265
                is_v3_dtor = 1;
266
              else if (strcmp (opt, "--ret-postfix") == 0)
267
                ret_postfix = 1;
268
              else
269
                {
270
                  printf ("FAIL at line %d: unrecognized option %s\n",
271
                          lineno, opt);
272
                  failures++;
273
                  continue;
274
                }
275
              *p = c;
276
              p += strspn (p, " \t");
277
            }
278
        }
279
 
280
      if (is_v3_ctor || is_v3_dtor)
281
        {
282
          char buf[20];
283
 
284
          if (is_v3_ctor)
285
            {
286
              enum gnu_v3_ctor_kinds kc;
287
 
288
              kc = is_gnu_v3_mangled_ctor (inp);
289
              sprintf (buf, "%d", (int) kc);
290
            }
291
          else
292
            {
293
              enum gnu_v3_dtor_kinds kd;
294
 
295
              kd = is_gnu_v3_mangled_dtor (inp);
296
              sprintf (buf, "%d", (int) kd);
297
            }
298
 
299
          if (strcmp (buf, expect.data) != 0)
300
            {
301
              fail (lineno, format.data, input.data, buf, expect.data);
302
              failures++;
303
            }
304
 
305
          continue;
306
        }
307
 
308
      cplus_demangle_set_style (style);
309
 
310
      result = cplus_demangle (inp,
311
                               DMGL_PARAMS|DMGL_ANSI|DMGL_TYPES
312
                               |(ret_postfix ? DMGL_RET_POSTFIX : 0));
313
 
314
      if (result
315
          ? strcmp (result, expect.data)
316
          : strcmp (input.data, expect.data))
317
        {
318
          fail (lineno, format.data, input.data, result, expect.data);
319
          failures++;
320
        }
321
      free (result);
322
 
323
      if (no_params)
324
        {
325
          get_line (&expect);
326
          result = cplus_demangle (inp, DMGL_ANSI|DMGL_TYPES);
327
 
328
          if (result
329
              ? strcmp (result, expect.data)
330
              : strcmp (input.data, expect.data))
331
            {
332
              fail (lineno, format.data, input.data, result, expect.data);
333
              failures++;
334
            }
335
          free (result);
336
        }
337
    }
338
 
339
  free (format.data);
340
  free (input.data);
341
  free (expect.data);
342
 
343
  printf ("%s: %d tests, %d failures\n", argv[0], tests, failures);
344
  return failures ? 1 : 0;
345
}

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