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Tobias Klauser 9d34fc5108 runtime: remove fallback to pipe on platforms with pipe2 
On Linux, the minimum required kernel version for Go 1.18 was be changed
to 2.6.32, see #45964. The pipe2 syscall was added in 2.6.27.

All other platforms already provide the pipe2 syscall in the minimum
supported version:
- DragonFly BSD added it in version 4.2, see
  https://www.dragonflybsd.org/release42/
- FreeBSD added it in version 10.0, see
  https://www.freebsd.org/cgi/man.cgi?pipe(2)#end
- NetBSD added it in version 6.0, see
  https://man.netbsd.org/pipe2.2#HISTORY
- OpenBSD added it in version 5.7, see
  https://man.openbsd.org/pipe.2#HISTORY
- Illumos supports it since 2013, see
  https://www.illumos.org/issues/3714
- Solaris supports it since 11.4

This also allows to remove setNonblock which was only used in the pipe
fallback path on these platforms.

Change-Id: I1f40d32fd3065d74e22af77b9ff2292b9cf66706
Reviewed-on: https://go-review.googlesource.com/c/go/+/389354
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 		2022-03-03 20:47:17 +00:00
.github .github: remove duplicate security link 2022-01-07 17:55:09 +00:00
api api: update next.txt for binary.AppendByteOrder interface 2022-03-03 17:04:24 +00:00
doc doc: start draft of go1.19 release notes, move go1.18 to x/website 2022-03-02 20:53:54 +00:00
lib/time lib/time, time/tzdata: update to 2021e 2021-11-11 05:16:39 +00:00
misc all: fix typos 2022-02-28 21:52:59 +00:00
src runtime: remove fallback to pipe on platforms with pipe2 2022-03-03 20:47:17 +00:00
test go/types, types2: fix scoping for iteration variables declared by range clause 2022-03-03 16:02:44 +00:00
.gitattributes all: treat all files as binary, but check in .bat with CRLF 2020-06-08 15:31:43 +00:00
.gitignore internal/buildcfg: move build configuration out of cmd/internal/objabi 2021-04-16 19:20:53 +00:00
AUTHORS A+C: add Bharath Kumar Uppala (individual CLA) 2021-11-29 00:57:09 +00:00
CONTRIBUTING.md
…
CONTRIBUTORS CONTRIBUTORS: update for the Go 1.18 release 2022-02-28 15:43:07 +00:00
LICENSE
…
PATENTS
…
README.md README.md: update contribute URL 2021-09-30 13:33:21 +00:00
SECURITY.md
…
codereview.cfg codereview.cfg: add codereview.cfg for master branch 2021-02-19 18:44:53 +00:00

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Download and Install

Binary Distributions

Official binary distributions are available at https://golang.org/dl/.

After downloading a binary release, visit https://golang.org/doc/install for installation instructions.

Install From Source

If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source for source installation instructions.

Contributing

Go is the work of thousands of contributors. We appreciate your help!

To contribute, please read the contribution guidelines at https://golang.org/doc/contribute.

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.