1 /* Demangler test program,
2 Copyright (C) 2002-2019 Free Software Foundation, Inc.
3 Written by Zack Weinberg <zack@codesourcery.com
5 This file is part of GNU libiberty.
7 This program 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 of the License, or
10 (at your option) any later version.
12 This program 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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
27 #include "libiberty.h"
45 static unsigned int lineno;
47 /* Safely read a single line of arbitrary length from standard input. */
55 char *data = buf->data;
56 size_t alloc = buf->alloced;
62 data = xmalloc (LINELEN);
66 /* Skip comment lines. */
67 while ((c = getchar()) == '#')
69 while ((c = getchar()) != EOF && c != '\n');
73 /* c is the first character on the line, and it's not a comment
74 line: copy this line into the buffer and return. */
75 while (c != EOF && c != '\n')
77 if (count + 1 >= alloc)
80 data = xrealloc (data, alloc);
92 /* If we have mmap() and mprotect(), copy the string S just before a
93 protected page, so that if the demangler runs over the end of the
94 string we'll get a fault, and return the address of the new string.
95 If no mmap, or it fails, or it looks too hard, just return S. */
97 #ifdef HAVE_SYS_MMAN_H
100 #if defined(MAP_ANON) && ! defined (MAP_ANONYMOUS)
101 #define MAP_ANONYMOUS MAP_ANON
105 protect_end (const char * s)
107 #if defined(HAVE_MMAP) && defined (MAP_ANONYMOUS)
108 size_t pagesize = getpagesize();
110 size_t s_len = strlen (s);
113 /* Don't try if S is too long. */
114 if (s_len >= pagesize)
117 /* Allocate one page of allocated space followed by an unmapped
121 buf = mmap (NULL, pagesize * 2, PROT_READ | PROT_WRITE,
122 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
125 munmap (buf + pagesize, pagesize);
128 result = buf + (pagesize - s_len - 1);
129 memcpy (result, s, s_len + 1);
137 fail (lineno, opts, in, out, exp)
145 FAIL at line %d, options %s:\n\
149 lineno, opts, in, out != NULL ? out : "(null)", exp);
152 /* The tester operates on a data file consisting of groups of lines:
154 input to be demangled
158 --format=<name> Sets the demangling style.
159 --no-params There are two lines of expected output; the first
160 is with DMGL_PARAMS, the second is without it.
161 --is-v3-ctor Calls is_gnu_v3_mangled_ctor on input; expected
162 output is an integer representing ctor_kind.
163 --is-v3-dtor Likewise, but for dtors.
164 --ret-postfix Passes the DMGL_RET_POSTFIX option
165 --ret-drop Passes the DMGL_RET_DROP option
167 For compatibility, just in case it matters, the options line may be
168 empty, to mean --format=auto. If it doesn't start with --, then it
169 may contain only a format name.
177 enum demangling_styles style = auto_demangling;
181 int ret_postfix, ret_drop;
191 fprintf (stderr, "usage: %s < test-set\n", argv[0]);
210 inp = protect_end (input.data);
219 if (format.data[0] == '\0')
220 style = auto_demangling;
221 else if (format.data[0] != '-')
223 style = cplus_demangle_name_to_style (format.data);
224 if (style == unknown_demangling)
226 printf ("FAIL at line %d: unknown demangling style %s\n",
227 lineno, format.data);
243 p += strcspn (p, " \t=");
246 if (strcmp (opt, "--format") == 0 && c == '=')
253 p += strcspn (p, " \t");
256 style = cplus_demangle_name_to_style (fstyle);
257 if (style == unknown_demangling)
259 printf ("FAIL at line %d: unknown demangling style %s\n",
265 else if (strcmp (opt, "--no-params") == 0)
267 else if (strcmp (opt, "--is-v3-ctor") == 0)
269 else if (strcmp (opt, "--is-v3-dtor") == 0)
271 else if (strcmp (opt, "--ret-postfix") == 0)
273 else if (strcmp (opt, "--ret-drop") == 0)
277 printf ("FAIL at line %d: unrecognized option %s\n",
283 p += strspn (p, " \t");
287 if (is_v3_ctor || is_v3_dtor)
293 enum gnu_v3_ctor_kinds kc;
295 kc = is_gnu_v3_mangled_ctor (inp);
296 sprintf (buf, "%d", (int) kc);
300 enum gnu_v3_dtor_kinds kd;
302 kd = is_gnu_v3_mangled_dtor (inp);
303 sprintf (buf, "%d", (int) kd);
306 if (strcmp (buf, expect.data) != 0)
308 fail (lineno, format.data, input.data, buf, expect.data);
315 cplus_demangle_set_style (style);
317 result = cplus_demangle (inp, (DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES
318 | (ret_postfix ? DMGL_RET_POSTFIX : 0)
319 | (ret_drop ? DMGL_RET_DROP : 0)));
322 ? strcmp (result, expect.data)
323 : strcmp (input.data, expect.data))
325 fail (lineno, format.data, input.data, result, expect.data);
333 result = cplus_demangle (inp, DMGL_ANSI|DMGL_TYPES);
336 ? strcmp (result, expect.data)
337 : strcmp (input.data, expect.data))
339 fail (lineno, format.data, input.data, result, expect.data);
350 printf ("%s: %d tests, %d failures\n", argv[0], tests, failures);
351 return failures ? 1 : 0;