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Mon, 19 Aug 2024 16:04:16 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 413h3pbb0m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 19 Aug 2024 16:04:15 +0000 Received: from phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 47JG3Fep014254; Mon, 19 Aug 2024 16:04:15 GMT Received: from localhost.localdomain (dhcp-10-175-39-147.vpn.oracle.com [10.175.39.147]) by phxpaimrmta03.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 413h3pb9w5-8; Mon, 19 Aug 2024 16:04:15 +0000 From: Vegard Nossum To: Masahiro Yamada , linux-kbuild@vger.kernel.org Cc: Nathan Chancellor , Nicolas Schier , Michael Ellerman , Morten Linderud , Haelwenn Monnier , Jann Horn , Kees Cook , James Bottomley , Theodore Ts'o , linux-hardening@vger.kernel.org, Vegard Nossum Subject: [RFC PATCH 07/11] kbuild: define 'make' as a no-op in --dry-run mode Date: Mon, 19 Aug 2024 18:03:04 +0200 Message-Id: <20240819160309.2218114-8-vegard.nossum@oracle.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240819160309.2218114-1-vegard.nossum@oracle.com> References: <20240819160309.2218114-1-vegard.nossum@oracle.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-19_13,2024-08-19_03,2024-05-17_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 suspectscore=0 adultscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2407110000 definitions=main-2408190107 X-Proofpoint-ORIG-GUID: BaZ3RWBemoMov_g8Pk82EfAgUCAUb7n6 X-Proofpoint-GUID: BaZ3RWBemoMov_g8Pk82EfAgUCAUb7n6 Output 'make() { :; }' at the start of the script in order to make all 'make' invocations in the resulting build script no-ops (GNU Make will actually execute -- and print -- all recipe lines that include $(MAKE), even when invoked with -n). Signed-off-by: Vegard Nossum --- Makefile | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Makefile b/Makefile index 953951157ec92..d08ade5791c2e 100644 --- a/Makefile +++ b/Makefile @@ -226,6 +226,12 @@ $(filter-out $(this-makefile), $(MAKECMDGOALS)) __all: __sub-make # Invoke a second make in the output directory, passing relevant variables __sub-make: +ifdef dry_run + # define 'make' as a no-op alias so that those commands are not + # actually run + @make() { :; } + @export -f make +endif $(Q)$(MAKE) $(no-print-directory) -C $(abs_objtree) \ -f $(abs_srctree)/Makefile $(MAKECMDGOALS)