From patchwork Wed Apr 16 18:40:21 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Patchwork-Id: 14054417 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CDE2722538F; Wed, 16 Apr 2025 18:40:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744828851; cv=none; b=PiuQgxbQAf7tVxEMOIFQNMWuQ+MslzknIMss9s/bwlBS8+FIEH1tKHKKytALA4rknowQHZag1r8v3unZ1fANJKx91bOfVihglhiBnIrQqdJ9l+49q4bxq/tEP83vaYbgvwKzy3aRnsCfVYJp/nudEmGKqVld79WvBODxwXTjc1s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744828851; c=relaxed/simple; bh=Z1bcOwaEL8wb4h1D5AwFZlAHw44W8YDLCsN003ABHao=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Y2rLRGc7h+Fsxi371rScBBBM0Uj7LGfZ7JvM9R1/u06hEpqZvFk63BLaXjuNmwrN3sPS5WFsO9i8qR1MX4VHJOVpVSC6AevGxzRnbT/2o3U/aZTtjxQVGlP5d6Ngch0pYyiyZ4bqNL50lNq1SBMse1swV+LrhQVoiT40XjY0uok= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=FKGY49PY; arc=none smtp.client-ip=159.69.126.157 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="FKGY49PY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1744828843; bh=Z1bcOwaEL8wb4h1D5AwFZlAHw44W8YDLCsN003ABHao=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=FKGY49PY+aJD3Zk9hYaJNGqTL2b9kWh9V1zAiApB9zkBxrWyO3gG6xRhOW6I/XLqK /iXWjsAJd5Q2zeMam5O8wgV935eLlRa3tIYVbcezzjGX/SHGTIpzWR4WYa9LieOXEd /FyhLfrguBiArRLUK2mIiCozc8sr8E2Ug24bshww= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Wed, 16 Apr 2025 20:40:21 +0200 Subject: [PATCH 6/6] selftests/nolibc: enable UBSAN if available Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250416-nolibc-ubsan-v1-6-c4704bb23da7@weissschuh.net> References: <20250416-nolibc-ubsan-v1-0-c4704bb23da7@weissschuh.net> In-Reply-To: <20250416-nolibc-ubsan-v1-0-c4704bb23da7@weissschuh.net> To: Willy Tarreau , "Paul E. McKenney" , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1744828842; l=1309; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=Z1bcOwaEL8wb4h1D5AwFZlAHw44W8YDLCsN003ABHao=; b=5uH7BCyiQnYSwYc4OPAZ5rlK+ma+NvCLUa/EsmPXvEDEVpsBANvQVnSAT2W8GTzRrxn7DeLBf 3v9YgXN0OrpBa5Jz7H7j0pHw/+rzfFAa2mVIp4bg9e5dOmFRf4pAdX/ X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= UBSAN detects undefined behaviour at runtime. To avoid introduction of new UB, enable UBSAN for nolibc-test. By signalling detected errors through traps no runtime dependency is necessary. Signed-off-by: Thomas Weißschuh Acked-by: Willy Tarreau --- tools/testing/selftests/nolibc/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile index aa05c1faac20d3054b231090b939d050b0231d40..94f3e8be7a68f63ecd639c4f283b3cd10764ce74 100644 --- a/tools/testing/selftests/nolibc/Makefile +++ b/tools/testing/selftests/nolibc/Makefile @@ -189,9 +189,10 @@ ifeq ($(origin XARCH),command line) CFLAGS_XARCH = $(CFLAGS_$(XARCH)) endif CFLAGS_STACKPROTECTOR ?= $(call cc-option,-mstack-protector-guard=global $(call cc-option,-fstack-protector-all)) +CFLAGS_SANITIZER ?= $(call cc-option,-fsanitize=undefined -fsanitize-trap=all) CFLAGS ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 -W -Wall -Wextra \ $(call cc-option,-fno-stack-protector) $(call cc-option,-Wmissing-prototypes) \ - $(CFLAGS_XARCH) $(CFLAGS_STACKPROTECTOR) $(CFLAGS_EXTRA) + $(CFLAGS_XARCH) $(CFLAGS_STACKPROTECTOR) $(CFLAGS_SANITIZER) $(CFLAGS_EXTRA) LDFLAGS := LIBGCC := -lgcc