Fix compiler warnings for noreturn

peterzhu2118 · peterzhu2118 · commit a57746d5758d · 2026-05-18T20:22:01.000-04:00
gc/mmtk/mmtk.c:480:1: warning: function 'rb_mmtk_gc_thread_bug' could be declared with attribute 'noreturn' [-Wmissing-noreturn]
      480 | {
          | ^
    gc/mmtk/mmtk.c:510:1: warning: function 'rb_mmtk_mutator_thread_panic_handler' could be declared with attribute 'noreturn' [-Wmissing-noreturn]
      510 | {
          | ^
diff --git a/gc/mmtk/mmtk.c b/gc/mmtk/mmtk.c
@@ -475,6 +475,7 @@ rb_mmtk_special_const_p(MMTk_ObjectReference object)
 }
 
 RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 1, 2)
+RBIMPL_ATTR_NORETURN()
 static void
 rb_mmtk_gc_thread_bug(const char *msg, ...)
 {
@@ -505,6 +506,7 @@ rb_mmtk_gc_thread_panic_handler(void)
     rb_mmtk_gc_thread_bug("MMTk GC thread panicked");
 }
 
+RBIMPL_ATTR_NORETURN()
 static void
 rb_mmtk_mutator_thread_panic_handler(void)
 {

Original file line number	Diff line number	Diff line change
`@@ -475,6 +475,7 @@ rb_mmtk_special_const_p(MMTk_ObjectReference object)`
`475`	`475`	`}`
`476`	`476`
`477`	`477`	`RBIMPL_ATTR_FORMAT(RBIMPL_PRINTF_FORMAT, 1, 2)`
	`478`	`+RBIMPL_ATTR_NORETURN()`
`478`	`479`	`static void`
`479`	`480`	`rb_mmtk_gc_thread_bug(const char *msg, ...)`
`480`	`481`	`{`
`@@ -505,6 +506,7 @@ rb_mmtk_gc_thread_panic_handler(void)`
`505`	`506`	`rb_mmtk_gc_thread_bug("MMTk GC thread panicked");`
`506`	`507`	`}`
`507`	`508`
	`509`	`+RBIMPL_ATTR_NORETURN()`
`508`	`510`	`static void`
`509`	`511`	`rb_mmtk_mutator_thread_panic_handler(void)`
`510`	`512`	`{`