From a2b0ff98a0d44259cc5f6bd7d3a3676ae9f8996a Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon, 23 Dec 2024 05:11:58 +0800
Subject: include/sys/cdefs.h: Add __attribute_optimization_barrier__

Add __attribute_optimization_barrier__ to disable inlining and cloning on a
function.  For Clang, expand it to

__attribute__ ((optnone))

Otherwise, expand it to

__attribute__ ((noinline, clone))

Co-Authored-By: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
---
 stdlib/tst-thread-quick_exit.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'stdlib/tst-thread-quick_exit.cc')

diff --git a/stdlib/tst-thread-quick_exit.cc b/stdlib/tst-thread-quick_exit.cc
index dadccee334..66ea855a0d 100644
--- a/stdlib/tst-thread-quick_exit.cc
+++ b/stdlib/tst-thread-quick_exit.cc
@@ -30,7 +30,7 @@ thread_local A a1;
 thread_local A a2;
 
 void
-__attribute__ ((noinline, noclone))
+__attribute_optimization_barrier__
 optimization_barrier (A &)
 {
 }
-- 
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