1dnl 2dnl Copyright (c) Red Hat Inc., 2008 3dnl 4dnl This program is free software; you can redistribute it and/or modify 5dnl it under the terms of the GNU General Public License as published by 6dnl the Free Software Foundation; either version 2 of the License, or 7dnl (at your option) any later version. 8dnl 9dnl This program is distributed in the hope that it will be useful, 10dnl but WITHOUT ANY WARRANTY; without even the implied warranty of 11dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See 12dnl the GNU General Public License for more details. 13dnl 14dnl You should have received a copy of the GNU General Public License 15dnl along with this program; if not, write to the Free Software 16dnl Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17dnl 18dnl Author: Masatake YAMATO <yamato@redhat.com> 19dnl 20 21dnl 22dnl LTP_CHECK_SYSCALL_SIGNALFD 23dnl -------------------------- 24dnl 25dnl * Checking the existence of the libc wrapper for signalfd. 26dnl If it exists, a shell variable LTP_SYSCALL_SIGNALFD_FUNCTION is set to "yes". 27dnl 28dnl * Checking the existence of signalfd.h. 29dnl If it exists, a shell variable LTP_SYSCALL_SIGNALFD_HEADER is set to "yes". 30dnl 31dnl * Checking the prefix used in fileds for signalfd_siginfo structure. 32dnl If it exists, a shell variable LTP_SYSCALL_SIGNALFD_FIELD_PREFIX is set to "given". 33dnl 34dnl About cpp macros defined in this macro, 35dnl see testcases/kernel/syscalls/signalfd/signalfd01.c of ltp. 36dnl 37 38AC_DEFUN([LTP_CHECK_SYSCALL_SIGNALFD], 39[dnl 40_LTP_CHECK_SYSCALL_SIGNALFD_FUNCTION 41_LTP_CHECK_SYSCALL_SIGNALFD_HEADER 42 43if test x"$LTP_SYSCALL_SIGNALFD_HEADER" = xyes; then 44 _LTP_CHECK_SYSCALL_SIGNALFD_FIELD_PREFIX 45fi]dnl 46)dnl 47 48dnl _LTP_CHECK_SYSCALL_SIGNALFD_FUNCTION 49dnl ------------------------------------ 50dnl 51dnl 52AC_DEFUN([_LTP_CHECK_SYSCALL_SIGNALFD_FUNCTION],[dnl 53AC_CHECK_FUNCS(signalfd,[LTP_SYSCALL_SIGNALFD_FUNCTION=yes])]) 54 55dnl _LTP_CHECK_SYSCALL_SIGNALFD_HEADER 56dnl ---------------------------------- 57dnl 58dnl 59AC_DEFUN([_LTP_CHECK_SYSCALL_SIGNALFD_HEADER], 60[dnl 61AC_CHECK_HEADERS([sys/signalfd.h linux/types.h]) 62AC_CHECK_HEADERS([linux/signalfd.h signalfd.h],[dnl 63LTP_SYSCALL_SIGNALFD_HEADER=yes],,[dnl 64#ifdef HAVE_LINUX_TYPES_H 65#include <linux/types.h> 66#endif 67]dnl 68)dnl 69]dnl 70)dnl 71 72dnl _LTP_CHECK_SYSCALL_SIGNALFD_FIELD_PREFIX 73dnl ---------------------------------------- 74dnl 75dnl 76AC_DEFUN([_LTP_CHECK_SYSCALL_SIGNALFD_FIELD_PREFIX], 77[dnl 78AC_CHECK_MEMBERS([struct signalfd_siginfo.ssi_signo, struct signalfd_siginfo.signo],[dnl 79LTP_SYSCALL_SIGNALFD_FIELD_PREFIX=given],,[dnl 80#if defined HAVE_SYS_SIGNALFD_H 81#include <sys/signalfd.h> 82#elif defined HAVE_LINUX_SIGNALFD_H 83#ifdef HAVE_LINUX_TYPES_H 84#include <linux/types.h> 85#endif 86#include <linux/signalfd.h> 87#elif defined HAVE_SIGNALFD_H 88#include <signalfd.h> 89#endif]) 90]dnl 91)dnl 92