2 dnl Copyright (c) Red Hat Inc., 2008
4 dnl This program is free software; you can redistribute it and/or modify
5 dnl it under the terms of the GNU General Public License as published by
6 dnl the Free Software Foundation; either version 2 of the License, or
7 dnl (at your option) any later version.
9 dnl This program is distributed in the hope that it will be useful,
10 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
11 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
12 dnl the GNU General Public License for more details.
14 dnl You should have received a copy of the GNU General Public License
15 dnl along with this program; if not, write to the Free Software
16 dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 dnl Author: Masatake YAMATO <yamato@redhat.com>
22 dnl LTP_CHECK_SYSCALL_SIGNALFD
23 dnl --------------------------
25 dnl * Checking the existence of the libc wrapper for signalfd.
26 dnl If it exists, a shell variable LTP_SYSCALL_SIGNALFD_FUNCTION is set to "yes".
28 dnl * Checking the existence of signalfd.h.
29 dnl If it exists, a shell variable LTP_SYSCALL_SIGNALFD_HEADER is set to "yes".
31 dnl * Checking the prefix used in fileds for signalfd_siginfo structure.
32 dnl If it exists, a shell variable LTP_SYSCALL_SIGNALFD_FIELD_PREFIX is set to "given".
34 dnl About cpp macros defined in this macro,
35 dnl see testcases/kernel/syscalls/signalfd/signalfd01.c of ltp.
38 AC_DEFUN([LTP_CHECK_SYSCALL_SIGNALFD],
40 _LTP_CHECK_SYSCALL_SIGNALFD_FUNCTION
41 _LTP_CHECK_SYSCALL_SIGNALFD_HEADER
43 if test x"$LTP_SYSCALL_SIGNALFD_HEADER" = xyes; then
44 _LTP_CHECK_SYSCALL_SIGNALFD_FIELD_PREFIX
48 dnl _LTP_CHECK_SYSCALL_SIGNALFD_FUNCTION
49 dnl ------------------------------------
52 AC_DEFUN([_LTP_CHECK_SYSCALL_SIGNALFD_FUNCTION],[dnl
53 AC_CHECK_FUNCS(signalfd,[LTP_SYSCALL_SIGNALFD_FUNCTION=yes])])
55 dnl _LTP_CHECK_SYSCALL_SIGNALFD_HEADER
56 dnl ----------------------------------
59 AC_DEFUN([_LTP_CHECK_SYSCALL_SIGNALFD_HEADER],
61 AC_CHECK_HEADERS(sys/signalfd.h)
62 AC_CHECK_HEADERS_ONCE([linux/types.h])
63 AC_CHECK_HEADERS(linux/signalfd.h signalfd.h,[dnl
64 LTP_SYSCALL_SIGNALFD_HEADER=yes],[],[dnl
65 #ifdef HAVE_LINUX_TYPES_H
66 #include <linux/types.h>
73 dnl _LTP_CHECK_SYSCALL_SIGNALFD_FIELD_PREFIX
74 dnl ----------------------------------------
77 AC_DEFUN([_LTP_CHECK_SYSCALL_SIGNALFD_FIELD_PREFIX],
79 AC_CHECK_MEMBERS([struct signalfd_siginfo.ssi_signo, struct signalfd_siginfo.signo],[dnl
80 LTP_SYSCALL_SIGNALFD_FIELD_PREFIX=given],[],[dnl
81 #if defined HAVE_SYS_SIGNALFD_H
82 #include <sys/signalfd.h>
83 #elif defined HAVE_LINUX_SIGNALFD_H
84 #ifdef HAVE_LINUX_TYPES_H
85 #include <linux/types.h>
87 #include <linux/signalfd.h>
88 #elif defined HAVE_SIGNALFD_H