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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_arm64.go
+1
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@@ -8,6 +8,7 @@ package unix
const _SYS_dup = SYS_DUP3
//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
//sys Fchown(fd int, uid int, gid int) (err error)
//sys Fstat(fd int, stat *Stat_t) (err error)
//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)