1/* Indicate that a test requires a working /proc.
2 Copyright (C) 2022-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <unistd.h>
20#include <support/check.h>
21#include <support/support.h>
22
23/* We test for /proc/self/maps since that's one of the files that one
24 of our tests actually uses, but the general idea is if Linux's
25 /proc/ (procfs) filesystem is mounted. If not, the process exits
26 with an UNSUPPORTED result code. */
27
28void
29support_need_proc (const char *why_msg)
30{
31#ifdef __linux__
32 if (access ("/proc/self/maps", R_OK))
33 FAIL_UNSUPPORTED ("/proc is not available, %s", why_msg);
34#endif
35}
36