unix: update z/OS implementation of fcntl and mmap

- Add a wrapper function around fcntl to handle different operation
  types and new fcntl implementation that accepts uintptr as an arg.
- Add support for calling mmap/munmap with address pointers.
- Add accompanying tests for new functions.

Change-Id: If5e77aa4cf2cccfd431de4f3bd0c5014a761e167
GitHub-Last-Rev: 07e32a4ab797c7baffdb50f8407cf679cabf1dae
GitHub-Pull-Request: golang/sys#216
Reviewed-on: https://go-review.googlesource.com/c/sys/+/610296
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Bypass: Dmitri Shuralyov <dmitshur@golang.org>
5 files changed
tree: 0772e19412ea279891693ad7908512eed7cdcc8a
  1. cpu/
  2. execabs/
  3. plan9/
  4. unix/
  5. windows/
  6. .gitattributes
  7. .gitignore
  8. codereview.cfg
  9. CONTRIBUTING.md
  10. go.mod
  11. LICENSE
  12. PATENTS
  13. README.md
README.md

sys

Go Reference

This repository holds supplemental Go packages for low-level interactions with the operating system.

Download/Install

The easiest way to install is to run go get -u golang.org/x/sys. You can also manually git clone the repository to $GOPATH/src/golang.org/x/sys.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.

The main issue tracker for the sys repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/sys:” in the subject line, so it is easy to find.