windows/svc: correct MOVL instruction in sys_amd64.s

Second argument of servicemain is a pointer. See

https://msdn.microsoft.com/en-us/library/windows/desktop/ms685138(v=vs.85).aspx

So amd64 assembler code should use MOVQ to read that value.
I probably copied 386 assembler code into amd64 and did not
adjust the code.

Broken code was used to pass parameters to the service, so
add some tests to verify that parameter passing works.

Fixes golang/go#24575

Change-Id: I89f8cad026ea13f8a5d78ff3e24b7236e27fc91f
Reviewed-on: https://go-review.googlesource.com/110160
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
3 files changed
tree: 6fd8fb7af335cc60f4176417d01af99b206e4c09
  1. cpu/
  2. plan9/
  3. unix/
  4. windows/
  5. .gitattributes
  6. .gitignore
  7. AUTHORS
  8. codereview.cfg
  9. CONTRIBUTING.md
  10. CONTRIBUTORS
  11. LICENSE
  12. PATENTS
  13. README.md
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.

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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.