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unix: replace blocked dup2 calls with dup3 on Android

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Android O and newer blocks access to the dup2 syscall. Route calls
to Dup2 to Dup3.

Change-Id: I76c0180db260ece4840b8ebf2736fb3f8c7ff9eb
Reviewed-on: https://go-review.googlesource.com/c/sys/+/231277
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Elias Naur
2020-05-01 05:29:02 +00:00
committed by Brad Fitzpatrick
parent d923437fa5
commit 10377860bb
22 changed files with 35 additions and 26 deletions
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unix/syscall_linux_arm64.go
+3 -3
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@@ -210,9 +210,9 @@ func InotifyInit() (fd int, err error) {
return InotifyInit1(0)
}
func Dup2(oldfd int, newfd int) (err error) {
return Dup3(oldfd, newfd, 0)
}
// dup2 exists because func Dup3 in syscall_linux.go references
// it in an unreachable path. dup2 isn't available on arm64.
func dup2(oldfd int, newfd int) error
func Pause() error {
_, err := ppoll(nil, 0, nil, nil)