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unix: implement EpollCreate using EpollCreate1 on all linux platforms

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Most newer architectures (e.g. arm64 or riscv64) don't provide the
epoll_create syscall. Some systems (e.g. Android) block it even if it
were available. In the kernel, the epoll_create syscall is implemented
[1] the same way EpollCreate is implemented in this package for
platforms without the epoll_create syscall. Thus, avoid the separate
wrapper and consistently implement EpollCreate using EpollCreate1.

[1] https://elixir.bootlin.com/linux/v5.15-rc1/source/fs/eventpoll.c#L2006

Change-Id: I8ac11d0de939dafa4b1d189d97d350b9c324c3ab
Reviewed-on: https://go-review.googlesource.com/c/sys/+/349809
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Tobias Klauser
2021-09-15 08:33:10 +00:00
committed by Tobias Klauser
parent 751e447fb3
commit ed5796bab1
22 changed files with 7 additions and 143 deletions
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unix/syscall_linux_s390x.go
-1
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@@ -12,7 +12,6 @@ import (
)
//sys dup2(oldfd int, newfd int) (err error)
//sysnb EpollCreate(size int) (fd int, err error)
//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
//sys Fchown(fd int, uid int, gid int) (err error)