1dnl SPDX-License-Identifier: GPL-2.0-or-later
2dnl Copyright (c) Linux Test Project, 2016
3
4AC_DEFUN([LTP_CHECK_BUILTIN_CLEAR_CACHE],[
5	AC_MSG_CHECKING([for __builtin___clear_cache])
6	AC_LINK_IFELSE([AC_LANG_SOURCE([[
7int main(void) {
8	char arr[16];
9	__builtin___clear_cache(arr, arr + sizeof(arr));
10        return 0;
11}]])],[has_bcc="yes"])
12
13if test "x$has_bcc" = xyes; then
14	AC_DEFINE(HAVE_BUILTIN_CLEAR_CACHE,1,[Define to 1 if you have __builtin___clear_cache])
15	AC_MSG_RESULT(yes)
16else
17	AC_MSG_RESULT(no)
18fi
19])
20