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Received: by sipsolutions.net with esmtpsa (TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim 4.98) (envelope-from ) id 1tB8r6-00000003mN8-26Et; Wed, 13 Nov 2024 09:36:04 +0100 Message-ID: <8bbfe73f7f1ef9f1a4674d963d1c4e8181f33341.camel@sipsolutions.net> Subject: Re: [RFC PATCH v2 02/13] x86/um: nommu: elf loader for fdpic From: Johannes Berg To: Geert Uytterhoeven , Hajime Tazaki Cc: linux-um@lists.infradead.org, ricarkol@google.com, Liam.Howlett@oracle.com, ebiederm@xmission.com, kees@kernel.org, viro@zeniv.linux.org.uk, brauner@kernel.org, jack@suse.cz, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Date: Wed, 13 Nov 2024 09:36:02 +0100 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.52.4 (3.52.4-2.fc40) MIME-Version: 1.0 X-malware-bazaar: not-scanned X-Rspam-User: X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 1838040002 X-Stat-Signature: 5uy85btfqc657yy1t3h3rib9fg1wn59w X-HE-Tag: 1731486945-720026 X-HE-Meta: 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 t66K3yYo AeDJJ+JGRV/6ZHtg7ACpm3TwadEmXO4XV+SUuTC9op7iyCz/BSVno4aMOzwKfjkc8x/+K+Zfd8wYcdI76VsJL9yY+6/TUlN7SzmYDgwtlHTipwNJm60lJg8aSSpSHKqummul20zwL+WylJ+MgxjH52RQ2kJqTYsSUoeWHUmBr7cKckfUJsrXCKFrIK/eYK0Bij4pS1MCwf0oVyzLnngsJjDWDYZffW3qt0B2rfoIudpsN7THgQTaSfVg1Lg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000004, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, 2024-11-13 at 09:19 +0100, Geert Uytterhoeven wrote: >=20 > > > > - depends on ARM || ((M68K || RISCV || SUPERH || XTENSA) && != MMU) > > > > + depends on ARM || ((M68K || RISCV || SUPERH || UML || XTENS= A) && !MMU) > > >=20 > > > s/UML/X86/? > >=20 > > I guess the fdpic loader can be used to X86, but this patchset only > > adds UML to be able to select it. I intended to add UML into nommu > > family. >=20 > While currently x86-nommu is supported for UML only, this is really > x86-specific. I still hope UML will get support for other architectures > one day, at which point a dependency on UML here will become wrong... >=20 X86 isn't set for UML, X64_32 and X64_64 are though. Given that the no-MMU UM support even is 64-bit only, that probably should then really be (UML && X86_64). But it already has !MMU, so can't be selected otherwise, and it seems that non-X86 UML=20 johannes