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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-485237dd017sm63621855e9.2.2026.03.08.04.37.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Mar 2026 04:37:51 -0700 (PDT) From: david.laight.linux@gmail.com To: Willy Tarreau , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= , linux-kernel@vger.kernel.org, Cheng Li Cc: David Laight Subject: [PATCH v5 next 01/17] tools/nolibc: Add _NOLIBC_OPTIMIZER_HIDE_VAR() to compiler.h Date: Sun, 8 Mar 2026 11:37:26 +0000 Message-Id: <20260308113742.12649-2-david.laight.linux@gmail.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20260308113742.12649-1-david.laight.linux@gmail.com> References: <20260308113742.12649-1-david.laight.linux@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: David Laight Needed to stop compiler 'optimisations' bloating code. Equivalent to the definition in include/linux/compiler.h Acked-by: Willy Tarreau Signed-off-by: David Laight --- Unchanged for v5. Changes for v4: - Remove #if guard tools/include/nolibc/compiler.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h index a8c7619dcdde..f03f84cfadce 100644 --- a/tools/include/nolibc/compiler.h +++ b/tools/include/nolibc/compiler.h @@ -71,4 +71,7 @@ # define __nolibc_static_assert(_t) #endif +/* Make the optimizer believe the variable can be manipulated arbitrarily. */ +#define _NOLIBC_OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "+r" (var)) + #endif /* _NOLIBC_COMPILER_H */ -- 2.39.5