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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95D5AC32774 for ; Mon, 22 Aug 2022 20:09:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232430AbiHVUJU (ORCPT ); Mon, 22 Aug 2022 16:09:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232124AbiHVUJS (ORCPT ); Mon, 22 Aug 2022 16:09:18 -0400 Received: from mail-lj1-x236.google.com (mail-lj1-x236.google.com [IPv6:2a00:1450:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EA2DE52DFE for ; Mon, 22 Aug 2022 13:09:14 -0700 (PDT) Received: by mail-lj1-x236.google.com with SMTP id bn9so4106152ljb.6 for ; Mon, 22 Aug 2022 13:09:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc; bh=rNzR9QGqS5j6oh3cxSooKBs5Da2aEIBjVibuQ7PJyY4=; b=G/6rnW2WngFu3z8GJAnZAfCOkh68V/JUVcL67bXj8QU16wKXhMja1mBmCXbTmoik81 fdRO9yziSI1qyn3ZnU+Tk/b2sF7XsdQ1NnwKRVBovYFK8jKlmTE25Tnqpl1OShRVgFuO 55GLEFueyqTzyirsTbo9dhWM7XcEyTrXvQVeN7iSuin+N1GEYFmw/DH+NkSO6W3GV6HO R/542Kyg5z5z+fF28YqBPucnTKR8rFd39QVkbJ7+94RLIRv3/IdPNOPUYxR2rtFLJJo/ akYDrVLMQ3gXaiXiwyvOoGY3I0ZKHhZmxqg1es9/wRFbkicvNSHP3X7Q6cUSaREYuQyd HxqA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc; bh=rNzR9QGqS5j6oh3cxSooKBs5Da2aEIBjVibuQ7PJyY4=; b=yEy6yRZTJGCsyDNj/fLEHbZZ06MlUz/0g6d6aso7FCGlcHlYcIub2Ue7qBkFYo6js2 fa6JqG9L6AGfwS/lTVtgEhL0+/x+xLBnJzjgGu8zDtT+sQnX3pdnUHpT97zklzYflk1s 6lA1itW0aPS+JHaK05gf0mo0JiBk/G3dnmthQiVykgsvZTF3LnTTES2RPdN/v8SOiCYM CHWaXuaGudyEOrzvvS6wDckPBKnY5AP3BbPEhmMJiPDfHuladqqFMxpkMMNtfqXhTW1z MAe/jRr2yNv3GDdy60z8md7pBiCyjLGaNp09cS57Xl3D0N9ux3is3rAYY9dRQMeirFcX Kjdw== X-Gm-Message-State: ACgBeo2ayM1e4mod9JSRCJpLkra9rdxO4ghBERSfkONF1Sl8sXhfm07k dL3Nh6Imf3xSX7Tcq16KQEj0+RHa8ndT1kkHv/uBp5cJD3ywGA== X-Google-Smtp-Source: AA6agR59okDv54Jbyi23A1nS9MzE8+afV+r+Jcam4JHKwd+90O+ezON9z+HSSTGcj+W/yIAHzcTIOm3wlGcNWGs75oc= X-Received: by 2002:a05:651c:4d4:b0:261:cbe7:e62f with SMTP id e20-20020a05651c04d400b00261cbe7e62fmr2347049lji.295.1661198952956; Mon, 22 Aug 2022 13:09:12 -0700 (PDT) MIME-Version: 1.0 References: <20220805154231.31257-1-ojeda@kernel.org> <20220805154231.31257-21-ojeda@kernel.org> In-Reply-To: <20220805154231.31257-21-ojeda@kernel.org> From: Nick Desaulniers Date: Mon, 22 Aug 2022 13:09:00 -0700 Message-ID: Subject: Re: [PATCH v9 20/27] scripts: add `rust_is_available.sh` To: Miguel Ojeda Cc: Linus Torvalds , Greg Kroah-Hartman , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, patches@lists.linux.dev, Jarkko Sakkinen , Alex Gaynor , Wedson Almeida Filho , Finn Behrens , Miguel Cano , Tiago Lam , Boqun Feng , Gary Guo , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: rust-for-linux@vger.kernel.org On Fri, Aug 5, 2022 at 8:46 AM Miguel Ojeda wrote: > > This script tests whether the Rust toolchain requirements are in place > to enable Rust support. With this, I get: $ make LLVM=1 rustavailable *** *** libclang (used by the Rust bindings generator 'bindgen') *** version does not match Clang's. This may be a problem. *** libclang version: 15.0.0 *** Clang version: 16.0.0 *** Rust is available! because I'm using clang built from source from ToT. Is this supposed to mean that I can't use clang-16, clang-14, clang-13, clang-12, or clang-11 (in the kernel we support clang-11+) in order to use rust? I'm guessing that's going to hinder adoption. Is there a way to specify which libclang version bindgen should be using? I have libclang built in my clang sources, llvm-project/llvm/build/lib/libclang.so. I also tried: $ CLANG_PATH=/android0/llvm-project/llvm/build/lib/libclang.so.15 make LLVM=1 -j72 rustavailable $ CLANG_PATH=/android0/llvm-project/llvm/build/lib/libclang.so make LLVM=1 -j72 rustavailable -- Thanks, ~Nick Desaulniers