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syscall: avoid dup2 in forkAndExecInChild1 on Android

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Android O and newer blocks the dup2 syscall.

Change-Id: Ibca01fc72ef114deeef6c0450a8b81a556ed0530
Reviewed-on: https://go-review.googlesource.com/c/go/+/235537
Run-TryBot: Elias Naur <mail@eliasnaur.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Elias Naur 2020-05-28 13:58:45 +02:00
parent 6bf2eea62a
commit 2711127974
11 changed files with 28 additions and 36 deletions
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10
src/syscall/syscall_dup2_linux.go Normal file
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@ -0,0 +1,10 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !android
// +build 386 amd64 arm mips mipsle mips64 mips64le ppc64 ppc64le s390x
package syscall
const _SYS_dup = SYS_DUP2

9
src/syscall/syscall_dup3_linux.go Normal file
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@ -0,0 +1,9 @@
// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build android arm64 riscv64
package syscall
const _SYS_dup = SYS_DUP3

5
src/syscall/syscall_linux_386.go
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@ -9,10 +9,7 @@ package syscall
import "unsafe"
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS32
)
const _SYS_setgroups = SYS_SETGROUPS32
func setTimespec(sec, nsec int64) Timespec {
return Timespec{Sec: int32(sec), Nsec: int32(nsec)}

5
src/syscall/syscall_linux_amd64.go
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@ -4,10 +4,7 @@
package syscall
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
//sys Dup2(oldfd int, newfd int) (err error)
//sysnb EpollCreate(size int) (fd int, err error)

5
src/syscall/syscall_linux_arm.go
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@ -6,10 +6,7 @@ package syscall
import "unsafe"
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS32
)
const _SYS_setgroups = SYS_SETGROUPS32
func setTimespec(sec, nsec int64) Timespec {
return Timespec{Sec: int32(sec), Nsec: int32(nsec)}

5
src/syscall/syscall_linux_arm64.go
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@ -6,10 +6,7 @@ package syscall
import "unsafe"
const (
_SYS_dup = SYS_DUP3
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
func EpollCreate(size int) (fd int, err error) {
if size <= 0 {

5
src/syscall/syscall_linux_mips64x.go
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@ -7,10 +7,7 @@
package syscall
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
//sys Dup2(oldfd int, newfd int) (err error)
//sysnb EpollCreate(size int) (fd int, err error)

5
src/syscall/syscall_linux_mipsx.go
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@ -9,10 +9,7 @@ package syscall
import "unsafe"
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)

5
src/syscall/syscall_linux_ppc64x.go
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@ -7,10 +7,7 @@
package syscall
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
//sys Dup2(oldfd int, newfd int) (err error)
//sysnb EpollCreate(size int) (fd int, err error)

5
src/syscall/syscall_linux_riscv64.go
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@ -6,10 +6,7 @@ package syscall
import "unsafe"
const (
_SYS_dup = SYS_DUP3
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
func EpollCreate(size int) (fd int, err error) {
if size <= 0 {

5
src/syscall/syscall_linux_s390x.go
View File

@ -6,10 +6,7 @@ package syscall
import "unsafe"
const (
_SYS_dup = SYS_DUP2
_SYS_setgroups = SYS_SETGROUPS
)
const _SYS_setgroups = SYS_SETGROUPS
//sys Dup2(oldfd int, newfd int) (err error)
//sysnb EpollCreate(size int) (fd int, err error)