From ba3b3e8938a5b853a0eb3c6e91360afe5b28ff47 Mon Sep 17 00:00:00 2001
From: Damian Gryski <damian@gryski.com>
Date: Fri, 2 May 2025 13:40:18 -0700
Subject: [PATCH] runtime: stub runtime signal functions for os/signal on
 wasip1

---
 src/runtime/runtime_wasip1.go | 17 +++++++++++++++++
 src/runtime/runtime_wasip2.go | 17 +++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/src/runtime/runtime_wasip1.go b/src/runtime/runtime_wasip1.go
index d680fad17..840888043 100644
--- a/src/runtime/runtime_wasip1.go
+++ b/src/runtime/runtime_wasip1.go
@@ -149,3 +149,20 @@ type (
 		}
 	}
 )
+
+// Need to stub these for `os/signal`, but wasi doesn't support signals.
+
+//go:linkname signal_disable os/signal.signal_disable
+func signal_disable(uint32) {}
+
+//go:linkname signal_enable os/signal.signal_enable
+func signal_enable(uint32) {}
+
+//go:linkname signal_ignore os/signal.signal_ignore
+func signal_ignore(uint32) {}
+
+//go:linkname signal_ignored os/signal.signal_ignored
+func signal_ignored(uint32) bool { return false }
+
+//go:linkname signal_recv os/signal.signal_recv
+func signal_recv() uint32 { return ^uint32(0) }
diff --git a/src/runtime/runtime_wasip2.go b/src/runtime/runtime_wasip2.go
index 46ce3d853..6d1bbc13f 100644
--- a/src/runtime/runtime_wasip2.go
+++ b/src/runtime/runtime_wasip2.go
@@ -50,3 +50,20 @@ func sleepTicks(d timeUnit) {
 func ticks() timeUnit {
 	return timeUnit(monotonicclock.Now())
 }
+
+// Need to stub these for `os/signal`, but wasi doesn't support signals.
+
+//go:linkname signal_disable os/signal.signal_disable
+func signal_disable(uint32) {}
+
+//go:linkname signal_enable os/signal.signal_enable
+func signal_enable(uint32) {}
+
+//go:linkname signal_ignore os/signal.signal_ignore
+func signal_ignore(uint32) {}
+
+//go:linkname signal_ignored os/signal.signal_ignored
+func signal_ignored(uint32) bool { return false }
+
+//go:linkname signal_recv os/signal.signal_recv
+func signal_recv() uint32 { return ^uint32(0) }