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 8E0D0C433F5 for ; Mon, 17 Jan 2022 05:34:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234318AbiAQFey (ORCPT ); Mon, 17 Jan 2022 00:34:54 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:40836 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234302AbiAQFek (ORCPT ); Mon, 17 Jan 2022 00:34:40 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B17AD60DFF; Mon, 17 Jan 2022 05:34:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 52D02C36AED; Mon, 17 Jan 2022 05:34:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642397679; bh=5sO+DVq/B8LfLiCRXoo9vrGP1/bmz/YXbgCFN+RtTx0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IUn1GUnKX2r0MiWblWp4CWoPAnflgTGFC12IMZvNlbd8ekmTxqUzCuw9LjWD4aXTO b3zMELQcDY1kzPEnh6FZAsP86O0nLUcta4d5lU1jPKnTMXumryAgSkYGFPQXV7mL+Y CYBRrgmSxFSzLTzJafi2GbllCYxXKokksqSwvr2npRlRi0UWS3gAuEn5i1ndj4TQ45 3Lj2rY8ZI/z9/u9/lGvH3+c0NLTdcKoeHnhNlOUdS0ErmctxpPQ+k81gnSJC0Z/zKl VFN5+dgM+zLSibErbCEf7gxl9/YWrsIa+pEwiZk/pgDaZ9eYT3J/8YUpSAu78uOzlu uI8/bXGLydEFQ== From: Miguel Ojeda To: Linus Torvalds , Greg Kroah-Hartman Cc: rust-for-linux@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho Subject: [PATCH v3 10/19] rust: export generated symbols Date: Mon, 17 Jan 2022 06:33:40 +0100 Message-Id: <20220117053349.6804-11-ojeda@kernel.org> In-Reply-To: <20220117053349.6804-1-ojeda@kernel.org> References: <20220117053349.6804-1-ojeda@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: rust-for-linux@vger.kernel.org All symbols are reexported reusing the `EXPORT_SYMBOL_GPL` macro from C. The lists of symbols are generated on the fly. There are three main sets of symbols to distinguish: - The ones from the `core` and `alloc` crates (from the Rust standard library). The code is licensed as Apache/MIT. - The ones from our abstractions in the `kernel` crate. - The helpers (already exported since they are not generated). We export everything as GPL. This ensures we do not mistakenly expose GPL kernel symbols/features as non-GPL, even indirectly. Co-developed-by: Alex Gaynor Signed-off-by: Alex Gaynor Co-developed-by: Wedson Almeida Filho Signed-off-by: Wedson Almeida Filho Signed-off-by: Miguel Ojeda --- rust/exports.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 rust/exports.c diff --git a/rust/exports.c b/rust/exports.c new file mode 100644 index 000000000000..d7dff1b3b919 --- /dev/null +++ b/rust/exports.c @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// A hack to export Rust symbols for loadable modules without having to redo +// the entire `include/linux/export.h` logic in Rust. +// +// This requires the Rust's new/future `v0` mangling scheme because the default +// one ("legacy") uses invalid characters for C identifiers (thus we cannot use +// the `EXPORT_SYMBOL_*` macros). + +#include + +#define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym); + +#include "exports_core_generated.h" +#include "exports_alloc_generated.h" +#include "exports_kernel_generated.h" -- 2.34.1