x/sys/unix: missing SYS_MSYNC for NetBSD

[Artoria2e5]

Please answer these questions before submitting your issue. Thanks!

What version of Go are you using (go version)?

Problem exists on HEAD.

What operating system and processor architecture are you using (go env)?

Let's pretend I am using NetBSD.

What did you do?

A few days ago I somehow saw edsrdf's mmap-go, which self-defines an syscall number for SYS_MSYNC (277) on NetBSD. Apparently Go's current syscall extraction fails to find it in NetBSD headers.

For cross-check I looked at syscalls.master, which also points to 277 as msync:

277	STD 		{ int|sys|13|msync(void *addr, size_t len, int flags); }

What did you expect to see?

Proper SYS_MSYNC.

What did you see instead?

It doesn't exist.

[bradfitz]

The Go syscall package is frozen. See https://golang.org/pkg/syscall/#pkg-overview

We can repurpose this bug for the https://godoc.org/golang.org/x/sys/unix package, though.

[minux]

On Thu, Jan 5, 2017 at 4:47 PM, Lion Yang ***@***.***> wrote: BTW, I cannot access https://golang.org/s/go1.4-syscall (the URL in https://golang.org/pkg/syscall/#pkg-overview).

I just checked, the URL redirects to the correct Google Docs fine. $ curl -I https://golang.org/s/go1.4-syscall HTTP/1.1 302 Found Strict-Transport-Security: max-age=31536000; preload Location: https://docs.google.com/a/golang.org/document/d/1QXzI9I1pOfZPujQzxhyRy6EeHYTQitKKjHfpq0zpxZs/ Content-Type: text/html; charset=utf-8 Date: Thu, 05 Jan 2017 23:26:46 GMT Server: Google Frontend Alt-Svc: quic=":443"; ma=2592000; v="35,34" Transfer-Encoding: chunked

[LionNatsu]

@minix Yes you are right. I forgot to turn on my lovely local DNS, embarrassing...

[gopherbot]

Change https://golang.org/cl/56172 mentions this issue: unix: unify memory functions on BSD