From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 8993815ECD2; Wed, 10 Apr 2024 13:22:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712755364; cv=none; b=COI0WN0pijHgZYQY3fG5wPMz3lKa9/hmW4ateSjdvxxVO9by3gpL1ctsS7i3vODtxU+zQST8Wmc3wS1aov0C/7JbHfK277SZbw9tf1isgrGZNVWo+02kfgiP4WoBZNY+mOxCy0CUJxARdArwAfP7Gjx30rtbRol4qANb19y1IMk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712755364; c=relaxed/simple; bh=03D0DQleB9vxk8wekat4Pmx/RVLXpwIuxViW/1q3BPE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=CnQr18+SNjO7Rdyq5Zpg4f52quwewq+38ykfmpJhVCNDeUMd5lzKaXB7fWdrQp6JqHuK4w25QJWe88eAhqeR9TjBBc5xzGJzwXPq9ftCLC2wJh6bEhqLHauCsE+y/ZZpu8YH+ATeu4aIFibf41h9Ps50cJSNedbgpbFF7pa8jVo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cPub9SDT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cPub9SDT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98FF6C433C7; Wed, 10 Apr 2024 13:22:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712755364; bh=03D0DQleB9vxk8wekat4Pmx/RVLXpwIuxViW/1q3BPE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=cPub9SDTJInpTD3h3i5Bm0XMXXDO2+Pu3RoVexjDEgpyIom8aOKTpUnOi2fKfG0v/ Z21+mTqNAwQ3B0ZxoDkdf+ioemD5P4CiEswiaqPYR2YMFl0r6A7CF6u2sRUasBR0fI q3A3FvUeBdN0WnAVvvxKzvY9zqoV+OKEv93rhNpW8YB4lul59+n6aXt7SE73+lxvAm UUp6giFw1XTo2UdIUxitRqf07eVX36sLFl2qCFX3CNINltqlz6x/1WSFC209Y5iFfx f9yEfchlx+Wdet8CZIpQ7odYqnkYwAV2OIENdLL2IhQRy+7gqbGhgMQRycR3Pyrrb5 3f7InogKyfqbQ== From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= To: Conor Dooley , linux-riscv@lists.infradead.org Cc: conor@kernel.org, Conor Dooley , Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?utf-8?Q?Bj=C3=B6rn?= Roy Baron , Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Nathan Chancellor , Nick Desaulniers , rust-for-linux@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH v3 0/1] RISC-V: enable rust In-Reply-To: <20240409-unsaddle-skittle-c93eb77732bb@spud> References: <20240409-unsaddle-skittle-c93eb77732bb@spud> Date: Wed, 10 Apr 2024 15:22:40 +0200 Message-ID: <871q7d73of.fsf@all.your.base.are.belong.to.us> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Conor Dooley writes: > From: Conor Dooley > > I've intentionally not turned on the gcc support, as discussed on > v1. I've also switched over to using the target, but it is a bit heavier > than the one arm64 seems to be using. RISC-V has fewer targets available > and this was the closest. I preserved the redzone disabling, just moved > into the Makefile. Any comment from Gary or the LLVM lads on the target > would be great I think: > https://github.com/rust-lang/rust/blob/master/compiler/rustc_target/src/s= pec/targets/riscv64imac_unknown_none_elf.rs > arm64 is using: > https://github.com/rust-lang/rust/blob/master/compiler/rustc_target/src/s= pec/targets/aarch64_unknown_none.rs > > I was gonna send this yesterday, but found out last minute I had invalid > code in the target generation script. The kernel test robot had given my > branch the global all-clear - the rust coverage with all the > "depends on !FOO" must really limit the build coverage. I built for x86 > with rust enabled locally this time to make sure.. > > As this as lifted from the state of the Rust-for-Linux tree, the commit > messages from there cannot be preserved, so these patches have commit > messages that I wrote. > > I've tested this on Icicle, and the modules seem to work as expected. > Unfortunately there appear to be implicit 32-bit divisions (or similar) > in core Rust code, so, as in the downstream Rust-for-Linux tree, Rust is > only enabled for 64-bit. Nice, works with my simple test on VisionFive 2 as well! Cool to have Rust support in! Now, BTF just needs to be supported, and I can have Rust *and* BPF in my kernels! :-P \o/ Tested-by: Bj=C3=B6rn T=C3=B6pel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 022A4CD11C2 for ; Wed, 10 Apr 2024 13:22:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:References :In-Reply-To:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Wed, 10 Apr 2024 13:22:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1712755364; bh=03D0DQleB9vxk8wekat4Pmx/RVLXpwIuxViW/1q3BPE=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=cPub9SDTJInpTD3h3i5Bm0XMXXDO2+Pu3RoVexjDEgpyIom8aOKTpUnOi2fKfG0v/ Z21+mTqNAwQ3B0ZxoDkdf+ioemD5P4CiEswiaqPYR2YMFl0r6A7CF6u2sRUasBR0fI q3A3FvUeBdN0WnAVvvxKzvY9zqoV+OKEv93rhNpW8YB4lul59+n6aXt7SE73+lxvAm UUp6giFw1XTo2UdIUxitRqf07eVX36sLFl2qCFX3CNINltqlz6x/1WSFC209Y5iFfx f9yEfchlx+Wdet8CZIpQ7odYqnkYwAV2OIENdLL2IhQRy+7gqbGhgMQRycR3Pyrrb5 3f7InogKyfqbQ== From: =?utf-8?B?QmrDtnJuIFTDtnBlbA==?= To: Conor Dooley , linux-riscv@lists.infradead.org Cc: conor@kernel.org, Conor Dooley , Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?utf-8?Q?Bj=C3=B6rn?= Roy Baron , Jonathan Corbet , Paul Walmsley , Palmer Dabbelt , Nathan Chancellor , Nick Desaulniers , rust-for-linux@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev Subject: Re: [PATCH v3 0/1] RISC-V: enable rust In-Reply-To: <20240409-unsaddle-skittle-c93eb77732bb@spud> References: <20240409-unsaddle-skittle-c93eb77732bb@spud> Date: Wed, 10 Apr 2024 15:22:40 +0200 Message-ID: <871q7d73of.fsf@all.your.base.are.belong.to.us> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240410_062247_067860_5DA5B823 X-CRM114-Status: GOOD ( 16.49 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Q29ub3IgRG9vbGV5IDxjb25vckBrZXJuZWwub3JnPiB3cml0ZXM6Cgo+IEZyb206IENvbm9yIERv b2xleSA8Y29ub3IuZG9vbGV5QG1pY3JvY2hpcC5jb20+Cj4KPiBJJ3ZlIGludGVudGlvbmFsbHkg bm90IHR1cm5lZCBvbiB0aGUgZ2NjIHN1cHBvcnQsIGFzIGRpc2N1c3NlZCBvbgo+IHYxLiBJJ3Zl IGFsc28gc3dpdGNoZWQgb3ZlciB0byB1c2luZyB0aGUgdGFyZ2V0LCBidXQgaXQgaXMgYSBiaXQg aGVhdmllcgo+IHRoYW4gdGhlIG9uZSBhcm02NCBzZWVtcyB0byBiZSB1c2luZy4gUklTQy1WIGhh cyBmZXdlciB0YXJnZXRzIGF2YWlsYWJsZQo+IGFuZCB0aGlzIHdhcyB0aGUgY2xvc2VzdC4gSSBw cmVzZXJ2ZWQgdGhlIHJlZHpvbmUgZGlzYWJsaW5nLCBqdXN0IG1vdmVkCj4gaW50byB0aGUgTWFr ZWZpbGUuIEFueSBjb21tZW50IGZyb20gR2FyeSBvciB0aGUgTExWTSBsYWRzIG9uIHRoZSB0YXJn ZXQKPiB3b3VsZCBiZSBncmVhdCBJIHRoaW5rOgo+IGh0dHBzOi8vZ2l0aHViLmNvbS9ydXN0LWxh bmcvcnVzdC9ibG9iL21hc3Rlci9jb21waWxlci9ydXN0Y190YXJnZXQvc3JjL3NwZWMvdGFyZ2V0 cy9yaXNjdjY0aW1hY191bmtub3duX25vbmVfZWxmLnJzCj4gYXJtNjQgaXMgdXNpbmc6Cj4gaHR0 cHM6Ly9naXRodWIuY29tL3J1c3QtbGFuZy9ydXN0L2Jsb2IvbWFzdGVyL2NvbXBpbGVyL3J1c3Rj X3RhcmdldC9zcmMvc3BlYy90YXJnZXRzL2FhcmNoNjRfdW5rbm93bl9ub25lLnJzCj4KPiBJIHdh cyBnb25uYSBzZW5kIHRoaXMgeWVzdGVyZGF5LCBidXQgZm91bmQgb3V0IGxhc3QgbWludXRlIEkg aGFkIGludmFsaWQKPiBjb2RlIGluIHRoZSB0YXJnZXQgZ2VuZXJhdGlvbiBzY3JpcHQuIFRoZSBr ZXJuZWwgdGVzdCByb2JvdCBoYWQgZ2l2ZW4gbXkKPiBicmFuY2ggdGhlIGdsb2JhbCBhbGwtY2xl YXIgLSB0aGUgcnVzdCBjb3ZlcmFnZSB3aXRoIGFsbCB0aGUKPiAiZGVwZW5kcyBvbiAhRk9PIiBt dXN0IHJlYWxseSBsaW1pdCB0aGUgYnVpbGQgY292ZXJhZ2UuIEkgYnVpbHQgZm9yIHg4Ngo+IHdp dGggcnVzdCBlbmFibGVkIGxvY2FsbHkgdGhpcyB0aW1lIHRvIG1ha2Ugc3VyZS4uCj4KPiBBcyB0 aGlzIGFzIGxpZnRlZCBmcm9tIHRoZSBzdGF0ZSBvZiB0aGUgUnVzdC1mb3ItTGludXggdHJlZSwg dGhlIGNvbW1pdAo+IG1lc3NhZ2VzIGZyb20gdGhlcmUgY2Fubm90IGJlIHByZXNlcnZlZCwgc28g dGhlc2UgcGF0Y2hlcyBoYXZlIGNvbW1pdAo+IG1lc3NhZ2VzIHRoYXQgSSB3cm90ZS4KPgo+IEkn dmUgdGVzdGVkIHRoaXMgb24gSWNpY2xlLCBhbmQgdGhlIG1vZHVsZXMgc2VlbSB0byB3b3JrIGFz IGV4cGVjdGVkLgo+IFVuZm9ydHVuYXRlbHkgdGhlcmUgYXBwZWFyIHRvIGJlIGltcGxpY2l0IDMy LWJpdCBkaXZpc2lvbnMgKG9yIHNpbWlsYXIpCj4gaW4gY29yZSBSdXN0IGNvZGUsIHNvLCBhcyBp biB0aGUgZG93bnN0cmVhbSBSdXN0LWZvci1MaW51eCB0cmVlLCBSdXN0IGlzCj4gb25seSBlbmFi bGVkIGZvciA2NC1iaXQuCgpOaWNlLCB3b3JrcyB3aXRoIG15IHNpbXBsZSB0ZXN0IG9uIFZpc2lv bkZpdmUgMiBhcyB3ZWxsISBDb29sIHRvIGhhdmUKUnVzdCBzdXBwb3J0IGluISBOb3csIEJURiBq dXN0IG5lZWRzIHRvIGJlIHN1cHBvcnRlZCwgYW5kIEkgY2FuIGhhdmUKUnVzdCAqYW5kKiBCUEYg aW4gbXkga2VybmVscyEgOi1QIFxvLwoKVGVzdGVkLWJ5OiBCasO2cm4gVMO2cGVsIDxiam9ybkBy aXZvc2luYy5jb20+CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgtcmlzY3ZAbGlzdHMuaW5mcmFkZWFk Lm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJp c2N2Cg==