dde7c770ef
The //go:linkname directive can be used to make a symbol accessible to another package (when it wouldn't normally be). Sometimes you want to do this without actually changing the symbol's object file symbol name; for example, in gccgo this makes unexported symbols non-static, and in gc this provides ABI0 wrappers for Go symbols so they can be called from assembly in other packages. Currently, this results in stutter like //go:linkname entersyscall runtime.entersyscall This CL makes the second argument to go:linkname optional for the case where the intent is simply to expose the symbol rather than to rename it in the object file. Updates #31230. Change-Id: Id06d9c4b2ec3d8e27f9b8a0d65212ab8048d734f Reviewed-on: https://go-review.googlesource.com/c/go/+/179861 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>
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