1 /* Self tests for scoped_mmap for GDB, the GNU debugger.
3 Copyright (C) 2018 Free Software Foundation, Inc.
5 This file is part of GDB.
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 3 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, see <http://www.gnu.org/licenses/>. */
22 #include "common/scoped_mmap.h"
25 #if defined(HAVE_SYS_MMAN_H) && defined(HAVE_UNISTD_H)
32 namespace scoped_mmap {
34 /* Test that the file is unmapped. */
42 ::scoped_mmap smmap (nullptr, sysconf (_SC_PAGESIZE), PROT_WRITE,
43 MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
46 SELF_CHECK (mem != nullptr);
49 SELF_CHECK (msync (mem, sysconf (_SC_PAGESIZE), 0) == -1 && errno == ENOMEM);
52 /* Test that the memory can be released. */
60 ::scoped_mmap smmap (nullptr, sysconf (_SC_PAGESIZE), PROT_WRITE,
61 MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
63 mem = smmap.release ();
64 SELF_CHECK (mem != nullptr);
67 SELF_CHECK (msync (mem, sysconf (_SC_PAGESIZE), 0) == 0 || errno != ENOMEM);
69 munmap (mem, sysconf (_SC_PAGESIZE));
80 } /* namespace scoped_mmap */
81 } /* namespace selftests */
83 #endif /* !defined(HAVE_SYS_MMAN_H) || !defined(HAVE_UNISTD_H) */
86 _initialize_scoped_mmap_selftests ()
88 #if defined(HAVE_SYS_MMAN_H) && defined(HAVE_UNISTD_H)
89 selftests::register_test ("scoped_mmap",
90 selftests::scoped_mmap::run_tests);