| /* Demangler test program, |
| Copyright (C) 2002-2021 Free Software Foundation, Inc. |
| Written by Zack Weinberg <zack@codesourcery.com |
| |
| This file is part of GNU libiberty. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| #include "ansidecl.h" |
| #include <stdio.h> |
| #include "libiberty.h" |
| #include "demangle.h" |
| #ifdef HAVE_STRING_H |
| #include <string.h> |
| #endif |
| #if HAVE_STDLIB_H |
| # include <stdlib.h> |
| #endif |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| struct line |
| { |
| size_t alloced; |
| char *data; |
| }; |
| |
| static unsigned int lineno; |
| |
| /* Safely read a single line of arbitrary length from standard input. */ |
| |
| #define LINELEN 80 |
| |
| static void |
| get_line(buf) |
| struct line *buf; |
| { |
| char *data = buf->data; |
| size_t alloc = buf->alloced; |
| size_t count = 0; |
| int c; |
| |
| if (data == 0) |
| { |
| data = xmalloc (LINELEN); |
| alloc = LINELEN; |
| } |
| |
| /* Skip comment lines. */ |
| while ((c = getchar()) == '#') |
| { |
| while ((c = getchar()) != EOF && c != '\n'); |
| lineno++; |
| } |
| |
| /* c is the first character on the line, and it's not a comment |
| line: copy this line into the buffer and return. */ |
| while (c != EOF && c != '\n') |
| { |
| if (count + 1 >= alloc) |
| { |
| alloc *= 2; |
| data = xrealloc (data, alloc); |
| } |
| data[count++] = c; |
| c = getchar(); |
| } |
| lineno++; |
| data[count] = '\0'; |
| |
| buf->data = data; |
| buf->alloced = alloc; |
| } |
| |
| /* If we have mmap() and mprotect(), copy the string S just before a |
| protected page, so that if the demangler runs over the end of the |
| string we'll get a fault, and return the address of the new string. |
| If no mmap, or it fails, or it looks too hard, just return S. */ |
| |
| #ifdef HAVE_SYS_MMAN_H |
| #include <sys/mman.h> |
| #endif |
| #if defined(MAP_ANON) && ! defined (MAP_ANONYMOUS) |
| #define MAP_ANONYMOUS MAP_ANON |
| #endif |
| |
| static const char * |
| protect_end (const char * s) |
| { |
| #if defined(HAVE_MMAP) && defined (MAP_ANONYMOUS) |
| size_t pagesize = getpagesize(); |
| static char * buf; |
| size_t s_len = strlen (s); |
| char * result; |
| |
| /* Don't try if S is too long. */ |
| if (s_len >= pagesize) |
| return s; |
| |
| /* Allocate one page of allocated space followed by an unmapped |
| page. */ |
| if (buf == NULL) |
| { |
| buf = mmap (NULL, pagesize * 2, PROT_READ | PROT_WRITE, |
| MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
| if (! buf) |
| return s; |
| munmap (buf + pagesize, pagesize); |
| } |
| |
| result = buf + (pagesize - s_len - 1); |
| memcpy (result, s, s_len + 1); |
| return result; |
| #else |
| return s; |
| #endif |
| } |
| |
| static void |
| fail (lineno, opts, in, out, exp) |
| int lineno; |
| const char *opts; |
| const char *in; |
| const char *out; |
| const char *exp; |
| { |
| printf ("\ |
| FAIL at line %d, options %s:\n\ |
| in: %s\n\ |
| out: %s\n\ |
| exp: %s\n", |
| lineno, opts, in, out != NULL ? out : "(null)", exp); |
| } |
| |
| /* The tester operates on a data file consisting of groups of lines: |
| options |
| input to be demangled |
| expected output |
| |
| Supported options: |
| --format=<name> Sets the demangling style. |
| --no-params There are two lines of expected output; the first |
| is with DMGL_PARAMS, the second is without it. |
| --is-v3-ctor Calls is_gnu_v3_mangled_ctor on input; expected |
| output is an integer representing ctor_kind. |
| --is-v3-dtor Likewise, but for dtors. |
| --ret-postfix Passes the DMGL_RET_POSTFIX option |
| --ret-drop Passes the DMGL_RET_DROP option |
| |
| For compatibility, just in case it matters, the options line may be |
| empty, to mean --format=auto. If it doesn't start with --, then it |
| may contain only a format name. |
| */ |
| |
| int |
| main(argc, argv) |
| int argc; |
| char **argv; |
| { |
| enum demangling_styles style = auto_demangling; |
| int no_params; |
| int is_v3_ctor; |
| int is_v3_dtor; |
| int ret_postfix, ret_drop; |
| struct line format; |
| struct line input; |
| struct line expect; |
| char *result; |
| int failures = 0; |
| int tests = 0; |
| |
| if (argc > 1) |
| { |
| fprintf (stderr, "usage: %s < test-set\n", argv[0]); |
| return 2; |
| } |
| |
| format.data = 0; |
| input.data = 0; |
| expect.data = 0; |
| |
| for (;;) |
| { |
| const char *inp; |
| |
| get_line (&format); |
| if (feof (stdin)) |
| break; |
| |
| get_line (&input); |
| get_line (&expect); |
| |
| inp = protect_end (input.data); |
| |
| tests++; |
| |
| no_params = 0; |
| ret_postfix = 0; |
| ret_drop = 0; |
| is_v3_ctor = 0; |
| is_v3_dtor = 0; |
| if (format.data[0] == '\0') |
| style = auto_demangling; |
| else if (format.data[0] != '-') |
| { |
| style = cplus_demangle_name_to_style (format.data); |
| if (style == unknown_demangling) |
| { |
| printf ("FAIL at line %d: unknown demangling style %s\n", |
| lineno, format.data); |
| failures++; |
| continue; |
| } |
| } |
| else |
| { |
| char *p; |
| char *opt; |
| |
| p = format.data; |
| while (*p != '\0') |
| { |
| char c; |
| |
| opt = p; |
| p += strcspn (p, " \t="); |
| c = *p; |
| *p = '\0'; |
| if (strcmp (opt, "--format") == 0 && c == '=') |
| { |
| char *fstyle; |
| |
| *p = c; |
| ++p; |
| fstyle = p; |
| p += strcspn (p, " \t"); |
| c = *p; |
| *p = '\0'; |
| style = cplus_demangle_name_to_style (fstyle); |
| if (style == unknown_demangling) |
| { |
| printf ("FAIL at line %d: unknown demangling style %s\n", |
| lineno, fstyle); |
| failures++; |
| continue; |
| } |
| } |
| else if (strcmp (opt, "--no-params") == 0) |
| no_params = 1; |
| else if (strcmp (opt, "--is-v3-ctor") == 0) |
| is_v3_ctor = 1; |
| else if (strcmp (opt, "--is-v3-dtor") == 0) |
| is_v3_dtor = 1; |
| else if (strcmp (opt, "--ret-postfix") == 0) |
| ret_postfix = 1; |
| else if (strcmp (opt, "--ret-drop") == 0) |
| ret_drop = 1; |
| else |
| { |
| printf ("FAIL at line %d: unrecognized option %s\n", |
| lineno, opt); |
| failures++; |
| continue; |
| } |
| *p = c; |
| p += strspn (p, " \t"); |
| } |
| } |
| |
| if (is_v3_ctor || is_v3_dtor) |
| { |
| char buf[20]; |
| |
| if (is_v3_ctor) |
| { |
| enum gnu_v3_ctor_kinds kc; |
| |
| kc = is_gnu_v3_mangled_ctor (inp); |
| sprintf (buf, "%d", (int) kc); |
| } |
| else |
| { |
| enum gnu_v3_dtor_kinds kd; |
| |
| kd = is_gnu_v3_mangled_dtor (inp); |
| sprintf (buf, "%d", (int) kd); |
| } |
| |
| if (strcmp (buf, expect.data) != 0) |
| { |
| fail (lineno, format.data, input.data, buf, expect.data); |
| failures++; |
| } |
| |
| continue; |
| } |
| |
| cplus_demangle_set_style (style); |
| |
| result = cplus_demangle (inp, (DMGL_PARAMS | DMGL_ANSI | DMGL_TYPES |
| | (ret_postfix ? DMGL_RET_POSTFIX : 0) |
| | (ret_drop ? DMGL_RET_DROP : 0))); |
| |
| if (result |
| ? strcmp (result, expect.data) |
| : strcmp (input.data, expect.data)) |
| { |
| fail (lineno, format.data, input.data, result, expect.data); |
| failures++; |
| } |
| free (result); |
| |
| if (no_params) |
| { |
| get_line (&expect); |
| result = cplus_demangle (inp, DMGL_ANSI|DMGL_TYPES); |
| |
| if (result |
| ? strcmp (result, expect.data) |
| : strcmp (input.data, expect.data)) |
| { |
| fail (lineno, format.data, input.data, result, expect.data); |
| failures++; |
| } |
| free (result); |
| } |
| } |
| |
| free (format.data); |
| free (input.data); |
| free (expect.data); |
| |
| printf ("%s: %d tests, %d failures\n", argv[0], tests, failures); |
| return failures ? 1 : 0; |
| } |