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Fri, 20 Jan 2023 15:53:18 +0100 (CET) Received: from tellis.lin.mbt.kalray.eu (unknown [192.168.36.206]) by zimbra2.kalray.eu (Postfix) with ESMTPSA id 057AA27E0430; Fri, 20 Jan 2023 15:53:18 +0100 (CET) X-Virus-Scanned: E-securemail Secumail-id: <5d9e.63caaade.e037f.0> DKIM-Filter: OpenDKIM Filter v2.10.3 zimbra2.kalray.eu 66A8927E0439 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kalray.eu; s=32AE1B44-9502-11E5-BA35-3734643DEF29; t=1674226398; bh=kRxe31MnQMmqE5+taZm1AGIuAYHRpwHRpAdaJ1cAplQ=; h=Date:From:To:Message-ID:MIME-Version; b=YyIqYgrfkWr5S+e3StrmT2Bz+xzv6InOUUAiJ+Ee5064rTXfFh85K084P2UbBDG2W gNEkTRz6oiFgP3OpnVk4jtK62FvfzEmQb6Q28gWtIAvW/nr+1y+YLusNgJ1Wd/awAH V7jmxOb9IUySl+9rZXiVdENlDVm128usIIPZgMcc= Date: Fri, 20 Jan 2023 15:53:16 +0100 From: Jules Maselbas To: Arnd Bergmann Cc: Yann Sionneau , Jonathan Corbet , Thomas Gleixner , Marc Zyngier , Rob Herring , Krzysztof Kozlowski , Will Deacon , Peter Zijlstra , Boqun Feng , Mark Rutland , "Eric W. Biederman" , Kees Cook , Oleg Nesterov , Ingo Molnar , Waiman Long , Aneesh Kumar , Andrew Morton , Nicholas Piggin , Paul Moore , Eric Paris , Christian Brauner , Paul Walmsley , Palmer Dabbelt , Albert Ou , Guillaume Thouvenin , Clement Leger , Vincent Chardon , Marc =?utf-8?b?UG91bGhpw6hz?= , Julian Vetter , Samuel Jones , Ashley Lesdalons , Thomas Costis , Marius Gligor , Jonathan Borne , Julien Villette , Luc Michel , Louis Morhet , Julien Hascoet , Jean-Christophe Pince , Guillaume Missonnier , Alex Michon , Huacai Chen , WANG Xuerui , Shaokun Zhang , John Garry , Guangbin Huang , Bharat Bhushan , Bibo Mao , Atish Patra , "Jason A . Donenfeld" , Qi Liu , Jiaxun Yang , Catalin Marinas , Mark Brown , Janosch Frank , Alexey Dobriyan , Benjamin Mugnier , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mm@kvack.org, Linux-Arch , linux-audit@redhat.com, linux-riscv@lists.infradead.org, bpf@vger.kernel.org Subject: Re: [RFC PATCH v2 09/31] kvx: Add build infrastructure Message-ID: <20230120145316.GA4155@tellis.lin.mbt.kalray.eu> References: <20230120141002.2442-1-ysionneau@kalray.eu> <20230120141002.2442-10-ysionneau@kalray.eu> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-ALTERMIMEV2_out: done X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 426FC4000C X-Stat-Signature: 19hdqbdij8bmw67oj3dy3h6dpdc3d4a8 X-Rspam-User: X-HE-Tag: 1674226402-712200 X-HE-Meta: U2FsdGVkX1/0a5MQ9MR1x+QymJzLMrmHEjmKKbobGaIkgSOo2dPwBt4nfL0Vt6wV2pYgWU+8iXqFyLoiBjLlrHZ8Peqv8fUt1gSG0Es1vkB2P+9vMv3UE9oxGEJvYPkI13tBl/2AVZUQ56Akph2Y3MAO+44dziPi/m1NyTEgk23+w4ElDF8HWBfEqDtLnd3kmmpolgVwjuc7f6/DuCdR7Fn7mu/tZfGu5v/tFAAZy3mu7Un9Q9bkzAld7CT8QIpnwdQKMexRj2LVwspNTduu5wOJA9A0eU3sQKpFtTShXPmSD5jWzQfOxdVNwUv7seZLbGrxgs6W+F/i4dsoc1gMI31xUNDin7vRk/lLRSFwdv2ixxBzNJDTybAGbK6bTQfGTYQVql2y6He/oa7cbTNIzbCxdVs9CP3hkBmrFe8MBO36mCWQxhfnwm07RkAy7rwUJ0F2g0VMSNEVd2Ga023P5rdS1Qeiv2AgKg2zuv6YzYcLwNxsbhSJPfNqcukY7GbBuHchMzX346ZckE1b80+t5Do4saTCpHxtSCjNSEcIgXD+CnwPORJnOA2XmQS8WkYlBYKYsAuVMMPa6C8+rUdmD77mYVGBvjRfn2DgVcOrsKwTLTJJxtPYZajRbbzwjDlOwSERbVUTKdsRa+z/XzyBOSw1QpDCn2Vng566rFO1ncpoJ4BnXgEraVPL1y2sxXGNWW609pr1rnR5fMATQqK2+5/81qHAWpAGswMiyvK3V5x8+aROd4NG3zEXCzGD8hJcODdd6gOdCQt5AXg4fDDGB/9IMQsuwmDJt7oxeghAIykwCUxj3pvCCvreYOAI8WS8dI2AT4Q5dPcLCWHtVbn47Mbtl3wn4XqSbqaJPUsmEqcLswPFNsJ+auyXFRAet+thdKM4a/bUNTedXD5I4/eixuq39apnvJyXJLKHHMo6qF0FYXo3NbYuzQ+oXI+1EI8LM2bQQO1XJsfbxO8xIBw 3/clb3MS 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Jan 20, 2023 at 03:39:22PM +0100, Arnd Bergmann wrote: > On Fri, Jan 20, 2023, at 15:09, Yann Sionneau wrote: > > - Fix clean target raising an error from gcc (LIBGCC) > > I had not noticed this on v1 but: > > > +# Link with libgcc to get __div* builtins. > > +LIBGCC := $(shell $(CC) $(DEFAULT_OPTS) --print-libgcc-file-name) > > It's better to copy the bits of libgcc that you actually need > than to include the whole thing. The kernel is in a weird It was initialy using KCONFIG_CFLAGS which do not contains valid options when invoking the clean target. I am not exactly sure what's needed by gcc for --print-libgcc-file-name, my guess is that only the -march option matters, I will double check internally with compiler peoples. > state that is neither freestanding nor the normal libc based > environment, so we generally want full control over what is > used. This is particularly important for 32-bit architectures > that do not want the 64-bit division, but there are probably > enough other cases as well. > > Arnd > > > >