runtime: mark traceEnabled as no:split

mauri870 · mauri870 · commit c02c8124e7a3 · 2023-08-12T11:56:44.000-03:00
The traceEnabled function splits the stack and is being called by reentersyscall that shouldn't call anything that splits the stack. Fixes #61975
diff --git a/src/runtime/trace.go b/src/runtime/trace.go
@@ -257,6 +257,8 @@ func traceBufPtrOf(b *traceBuf) traceBufPtr {
 }
 
 // traceEnabled returns true if the trace is currently enabled.
+//
+//go:nosplit
 func traceEnabled() bool {
 	return trace.enabled
 }

Original file line number	Diff line number	Diff line change
`@@ -257,6 +257,8 @@ func traceBufPtrOf(b *traceBuf) traceBufPtr {`
`257`	`257`	`}`
`258`	`258`
`259`	`259`	`// traceEnabled returns true if the trace is currently enabled.`
	`260`	`+//`
	`261`	`+//go:nosplit`
`260`	`262`	`func traceEnabled() bool {`
`261`	`263`	`return trace.enabled`
`262`	`264`	`}`