From dfc86e922cd033155339c22aff64e109f6c8cc89 Mon Sep 17 00:00:00 2001
From: Michael Anthony Knyszek <mknyszek@google.com>
Date: Thu, 4 Apr 2024 04:50:13 +0000
Subject: internal/weak: add package implementing weak pointers

This change adds the internal/weak package, which exposes GC-supported
weak pointers to the standard library. This is for the upcoming weak
package, but may be useful for other future constructs.

For #62483.

Change-Id: I4aa8fa9400110ad5ea022a43c094051699ccab9d
Reviewed-on: https://go-review.googlesource.com/c/go/+/576297
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
---
 src/runtime/proc.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/runtime/proc.go')

diff --git a/src/runtime/proc.go b/src/runtime/proc.go
index a029a23f7d..8f5787dbbb 100644
--- a/src/runtime/proc.go
+++ b/src/runtime/proc.go
@@ -6937,6 +6937,18 @@ func sync_atomic_runtime_procUnpin() {
 	procUnpin()
 }
 
+//go:linkname internal_weak_runtime_procPin internal/weak.runtime_procPin
+//go:nosplit
+func internal_weak_runtime_procPin() int {
+	return procPin()
+}
+
+//go:linkname internal_weak_runtime_procUnpin internal/weak.runtime_procUnpin
+//go:nosplit
+func internal_weak_runtime_procUnpin() {
+	procUnpin()
+}
+
 // Active spinning for sync.Mutex.
 //
 //go:linkname sync_runtime_canSpin sync.runtime_canSpin
-- 
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