Another mtrace un-bit-rotting tweak

297c42cd · Silas Boyd-Wickizer · 69b12bc9 · 297c42cd · 297c42cd
--- a/kernel/idle.cc
+++ b/kernel/idle.cc
@@ -52,8 +52,7 @@ idlebequeath(void)
  release(&idlem->heir->lock);
 }

-
-static void
+void
 idleheir(void *x)
 {
  post_swtch();

--- a/kernel/sched.cc
+++ b/kernel/sched.cc
@@ -36,6 +36,8 @@ sched(void)
 {
  extern void threadstub(void);
  extern void forkret(void);
+  extern void idleheir(void *x);
+
  int intena;

 #if SPINLOCK_DEBUG
@@ -86,7 +88,8 @@ sched(void)
  next->tsc = rdtsc();

  if (next->context->rip != (uptr)forkret && 
-      next->context->rip != (uptr)threadstub)
+      next->context->rip != (uptr)threadstub &&
+      next->context->rip != (uptr)idleheir)
  {
    mtresume(next);
  }