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unix: fix EpollWait for arm64

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epoll_wait syscall doesn't exist on arm64. Implement it with
by callign epoll_pwait(). According to man epoll_pwait,
calling epoll_pwait with sigmask of NULL is identical to
epoll_wait.

Testing exposed that EpollEvent needs padding on arm64
like on arm.

This changeset is to fix:
https://github.com/fsnotify/fsnotify/issues/130

Testcase: go test with fsnotify ported from syscall to x/sys:
https://github.com/suihkulokki/fsnotify/tree/go-sys

Change-Id: I76136bf4c82c2ee597549133848f490da46dd488
Reviewed-on: https://go-review.googlesource.com/21971
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Riku Voipio
2016-04-13 20:47:32 +00:00
committed by Ian Lance Taylor
parent 9eef40adf0
commit 324e137580
17 changed files with 144 additions and 138 deletions
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unix/syscall_linux.go
-1
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@@ -872,7 +872,6 @@ func Mount(source string, target string, fstype string, flags uintptr, data stri
//sysnb EpollCreate(size int) (fd int, err error)
//sysnb EpollCreate1(flag int) (fd int, err error)
//sysnb EpollCtl(epfd int, op int, fd int, event *EpollEvent) (err error)
//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
//sys Exit(code int) = SYS_EXIT_GROUP
//sys Faccessat(dirfd int, path string, mode uint32, flags int) (err error)
//sys Fallocate(fd int, mode uint32, off int64, len int64) (err error)