mirror of
https://github.com/autc04/Retro68.git
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353 lines
7.8 KiB
C
353 lines
7.8 KiB
C
/* Demangler test program,
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Copyright (C) 2002-2018 Free Software Foundation, Inc.
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Written by Zack Weinberg <zack@codesourcery.com
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This file is part of GNU libiberty.
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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.
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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, 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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*/
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#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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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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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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static unsigned int lineno;
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/* 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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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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#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
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static const char *
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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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/* 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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/* 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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result = buf + (pagesize - s_len - 1);
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memcpy (result, s, s_len + 1);
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return result;
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#else
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return s;
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#endif
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}
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static void
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fail (lineno, opts, in, out, exp)
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int lineno;
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const char *opts;
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const char *in;
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const char *out;
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const char *exp;
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{
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printf ("\
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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);
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}
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/* The tester operates on a data file consisting of groups of lines:
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options
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input to be demangled
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expected output
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Supported options:
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--format=<name> Sets the demangling style.
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--no-params There are two lines of expected output; the first
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is with DMGL_PARAMS, the second is without it.
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--is-v3-ctor Calls is_gnu_v3_mangled_ctor on input; expected
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output is an integer representing ctor_kind.
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--is-v3-dtor Likewise, but for dtors.
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--ret-postfix Passes the DMGL_RET_POSTFIX option
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--ret-drop Passes the DMGL_RET_DROP option
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For compatibility, just in case it matters, the options line may be
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empty, to mean --format=auto. If it doesn't start with --, then it
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may contain only a format name.
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*/
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int
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main(argc, argv)
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int argc;
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char **argv;
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{
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enum demangling_styles style = auto_demangling;
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int no_params;
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int is_v3_ctor;
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int is_v3_dtor;
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int ret_postfix, ret_drop;
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struct line format;
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struct line input;
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struct line expect;
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char *result;
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int failures = 0;
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int tests = 0;
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if (argc > 1)
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{
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fprintf (stderr, "usage: %s < test-set\n", argv[0]);
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return 2;
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}
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format.data = 0;
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input.data = 0;
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expect.data = 0;
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for (;;)
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{
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const char *inp;
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get_line (&format);
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if (feof (stdin))
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break;
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get_line (&input);
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get_line (&expect);
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inp = protect_end (input.data);
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tests++;
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no_params = 0;
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ret_postfix = 0;
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ret_drop = 0;
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is_v3_ctor = 0;
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is_v3_dtor = 0;
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if (format.data[0] == '\0')
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style = auto_demangling;
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else if (format.data[0] != '-')
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{
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style = cplus_demangle_name_to_style (format.data);
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if (style == unknown_demangling)
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{
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printf ("FAIL at line %d: unknown demangling style %s\n",
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lineno, format.data);
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failures++;
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continue;
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}
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}
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else
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{
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char *p;
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char *opt;
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p = format.data;
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while (*p != '\0')
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{
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char c;
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opt = p;
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p += strcspn (p, " \t=");
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c = *p;
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*p = '\0';
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if (strcmp (opt, "--format") == 0 && c == '=')
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{
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char *fstyle;
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*p = c;
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++p;
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fstyle = p;
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p += strcspn (p, " \t");
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c = *p;
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*p = '\0';
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style = cplus_demangle_name_to_style (fstyle);
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if (style == unknown_demangling)
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{
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printf ("FAIL at line %d: unknown demangling style %s\n",
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lineno, fstyle);
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failures++;
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continue;
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}
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}
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else if (strcmp (opt, "--no-params") == 0)
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no_params = 1;
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else if (strcmp (opt, "--is-v3-ctor") == 0)
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is_v3_ctor = 1;
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else if (strcmp (opt, "--is-v3-dtor") == 0)
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is_v3_dtor = 1;
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else if (strcmp (opt, "--ret-postfix") == 0)
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ret_postfix = 1;
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else if (strcmp (opt, "--ret-drop") == 0)
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ret_drop = 1;
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else
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{
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printf ("FAIL at line %d: unrecognized option %s\n",
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lineno, opt);
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failures++;
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continue;
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}
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*p = c;
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p += strspn (p, " \t");
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}
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}
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if (is_v3_ctor || is_v3_dtor)
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{
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char buf[20];
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if (is_v3_ctor)
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{
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enum gnu_v3_ctor_kinds kc;
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kc = is_gnu_v3_mangled_ctor (inp);
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sprintf (buf, "%d", (int) kc);
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}
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else
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{
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enum gnu_v3_dtor_kinds kd;
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kd = is_gnu_v3_mangled_dtor (inp);
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sprintf (buf, "%d", (int) kd);
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}
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if (strcmp (buf, expect.data) != 0)
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{
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fail (lineno, format.data, input.data, buf, expect.data);
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failures++;
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}
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continue;
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}
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cplus_demangle_set_style (style);
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result = cplus_demangle (inp, (DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES
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| (ret_postfix ? DMGL_RET_POSTFIX : 0)
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| (ret_drop ? DMGL_RET_DROP : 0)));
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if (result
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? strcmp (result, expect.data)
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: strcmp (input.data, expect.data))
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{
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fail (lineno, format.data, input.data, result, expect.data);
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failures++;
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}
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free (result);
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if (no_params)
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{
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get_line (&expect);
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result = cplus_demangle (inp, DMGL_ANSI|DMGL_TYPES);
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if (result
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? strcmp (result, expect.data)
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: strcmp (input.data, expect.data))
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{
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fail (lineno, format.data, input.data, result, expect.data);
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failures++;
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}
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free (result);
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}
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}
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free (format.data);
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free (input.data);
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free (expect.data);
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printf ("%s: %d tests, %d failures\n", argv[0], tests, failures);
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return failures ? 1 : 0;
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}
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