windows: add IsWow64Process2 for detecting x86 on arm

The original IsWow64Process returns false on arm, always, and so
IsWow64Process2 was added to account for this scenario. This isn't
available on older versions of Windows, so we mark it as such using the
new '?' notation. Finally, we add a test to make sure this all works and
does the expected thing on different versions of Windows.

Change-Id: Ic0412578cfb3f4cf6c9dc92a0028abc579bf6c85
Reviewed-on: https://go-review.googlesource.com/c/sys/+/269077
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
3 files changed
tree: f8de207f161af30b58d0e1c02545368ee9235d2d
  1. .gitattributes
  2. .gitignore
  3. AUTHORS
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. LICENSE
  7. PATENTS
  8. README.md
  9. codereview.cfg
  10. cpu/
  11. go.mod
  12. internal/
  13. plan9/
  14. unix/
  15. windows/
README.md

sys

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.