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Consolidate Linux epoll_wait syscall

This patch consolidates the epoll_wait Linux syscall generation on
sysdeps/unix/sysv/linux/epoll_wait.c.  The implementation tries to
use __NR_epoll_wait if defined, otherwise calls epoll_pwait.

Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32,
arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu.

	* sysdeps/unix/sysv/linux/epoll_wait.c: New file.
	* sysdeps/unix/sysv/linux/generic/epoll_wait.c: Remove file.
	* sysdeps/unix/sysv/linux/syscalls.list: Remove epoll_wait from
	auto-generation list.
This commit is contained in:
Adhemerval Zanella
2016-11-21 17:40:19 -02:00
parent 26f28fd73d
commit b62c381591
5 changed files with 17 additions and 5 deletions

View File

@ -0,0 +1,32 @@
/* Linux epoll_wait syscall implementation.
Copyright (C) 2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/epoll.h>
int
epoll_wait (int epfd, struct epoll_event *events, int maxevents, int timeout)
{
#ifdef __NR_epoll_wait
return SYSCALL_CANCEL (epoll_wait, epfd, events, maxevents, timeout);
#else
return epoll_pwait (epfd, events, maxevents, timeout, NULL);
#endif
}