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include/sys/cdefs.h: Add __attribute_optimization_barrier__

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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>
This commit is contained in:
Adhemerval Zanella
2024-12-23 05:11:58 +08:00
committed by H.J. Lu
parent 3fb895ac88
commit a2b0ff98a0
45 changed files with 112 additions and 101 deletions
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2
stdlib/tst-setcontext11.c
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@@ -54,7 +54,7 @@ f1 (int a0, int a1, int a2, int a3)
}
static void
__attribute__ ((noinline, noclone))
__attribute_optimization_barrier__
call_longjmp (void)
{
longjmp_called = 1;