cmd/compile: "missing function body" error when using the //go:linkname compiler directive

[bigfg]

For example let's say (hypothetically) that I wanted to call the strhash function defined in the runtime package, I could do:

`package key

import "unsafe"

//go:linkname strhash runtime.strhash
func strhash(a unsafe.Pointer, h uintptr) uintptr

func hash(s string) uintptr {
return strhash(unsafe.Pointer(&s), 0)
}`

this case came from: #15006

actually, I try to fix this with:
flag.BoolVar(&completeFlag, "complete", true, "compiling complete package")

But it doesn't seem to work.

[davecheney]

Place an empty .s file in the same package to stimulate the go tool to elide the -complete flag.

…

On 11 Jan 2018, at 22:43, bigfg ***@***.***> wrote: For example let's say (hypothetically) that I wanted to call the strhash function defined in the runtime package, I could do: `package key import "unsafe" //go:linkname strhash runtime.strhash func strhash(a unsafe.Pointer, h uintptr) uintptr func hash(s string) uintptr { return strhash(unsafe.Pointer(&s), 0) }` actually, I try to fix this with: flag.BoolVar(&completeFlag, "complete", true, "compiling complete package") But it doesn't seem to work. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[crvv]

This looks like a duplicate of #23311

[davecheney]

Closing as answered.