From patchwork Fri Dec 16 22:17:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allen Webb X-Patchwork-Id: 13075548 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 D287DC3DA6E for ; Fri, 16 Dec 2022 22:17:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230014AbiLPWRh (ORCPT ); Fri, 16 Dec 2022 17:17:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49284 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230004AbiLPWRZ (ORCPT ); Fri, 16 Dec 2022 17:17:25 -0500 Received: from mail-il1-x14a.google.com (mail-il1-x14a.google.com [IPv6:2607:f8b0:4864:20::14a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 60C1E2A97F for ; Fri, 16 Dec 2022 14:17:24 -0800 (PST) Received: by mail-il1-x14a.google.com with SMTP id g3-20020a056e021a2300b00305e3da9585so2449640ile.16 for ; Fri, 16 Dec 2022 14:17:24 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=H+RvplB5wkPH74MUb1wifMfzO8M5nZWLX+/SXGO5TdI=; b=q0b1jj9NvHbp3f43Na/217O79cCxnY5MMJB+tmd2m4a9KAMjYiB8BlpdORdqG+ungW 8rKFadTJM54bK/kumgRMVr1Yguw7JF71Hv3soXH7RaMR95ECsBNUxxq3e1WOSa+u2OI1 1Y6ix2z7qAGh4XvWq0HnpSOSARb3/Zy5jlbl3nwZp6nIH3KtoMlRZXkF8EBLJGK7iYWk 6niD7L0/pqfwMKn3UasRrTUGL8l+xEQJlvmdC1bwnoLHzUAGDpruXScii9m9DKrMoHDk /aWSB5puTi6SOEntsCfF2g/caz7oOkEyWLgRdcovsvqwpdvh1ZMq8KbdiMvYVh3WCVC5 RcdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=H+RvplB5wkPH74MUb1wifMfzO8M5nZWLX+/SXGO5TdI=; b=Z0ELc+sFkDycJoZNx+tapWNcEwA/ixJw3TqrUTR4Ll77P1ivwNQprfyLsIfF4VGFNW q0TyD5iWK37vx5pnCO5niyiJZAPtwAgSVEJsdx232HfDbUy78uILLQYAMWTSJ1Q/N4PH 3f/LuUQDZUHAwmNNweYtiQvjc2aLV+HUbEMU+oDuBTb+yQyQ/R+ye6ZMvJoFwSnD4RuD TepDiX3kgLmjcD9tchC7NMWEDei2NYksfeY41etkg31q+d2hZEb4imtpKldGOyqXL0Va V+BJJbcqsL/QY/lMe2NFZ4boNrCtpa1p77TPQmxYcd5oF4W5Q6CAaWmM3hl5uhr+cWLO uq6Q== X-Gm-Message-State: AFqh2kr0xLTUhtKB3AQOWMA+75gJ0AbLj7Y/yEkbOJ4Y8u32fjBCMqmk 2z5/RzZXiTPmpmWsnyfjqHoxUzpiaLw/dHjEx5gSSeEHoEqFh59NrCdLY2NKAnhXpNPFhHdJzgw zb+8CQK6WE6YSd7hVgOep5V4m8O+QtgBODBqj+kIcMAgiOW+IxF3wSeLfIG4Ba5+1/RbZ1JJ3tP jk0Ys= X-Google-Smtp-Source: AMrXdXu/b3LbN3BaGO2amr3yvcbAu+UGbScQX6evGCe9lTPh9LFkZJroFCZzUk59lwh7ey7DgjWZfjQ4rBqCa6A= X-Received: from allenwebb.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:12e8]) (user=allenwebb job=sendgmr) by 2002:a6b:4415:0:b0:6e6:279:2e74 with SMTP id r21-20020a6b4415000000b006e602792e74mr235776ioa.10.1671229043653; Fri, 16 Dec 2022 14:17:23 -0800 (PST) Date: Fri, 16 Dec 2022 16:17:01 -0600 In-Reply-To: <20221216221703.294683-1-allenwebb@google.com> Mime-Version: 1.0 References: <20221216221703.294683-1-allenwebb@google.com> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog Message-ID: <20221216221703.294683-4-allenwebb@google.com> Subject: [PATCH v7 3/5] modpost: Add -b option for emitting built-in aliases From: Allen Webb To: "linux-modules@vger.kernel.org" , "linux-usb@vger.kernel.org" , "linux-kernel@vger.kernel.org" Cc: Luis Chamberlain , Greg Kroah-Hartman , "Rafael J. Wysocki" , Allen Webb Precedence: bulk List-ID: This adds an unimplemented command line flag for writing the built-in aliases to a file. Signed-off-by: Allen Webb --- scripts/mod/modpost.c | 23 +++++++++++++++++++++-- scripts/mod/modpost.h | 1 + 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 2c80da0220c32..845f157d69ebc 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -2165,6 +2165,19 @@ static void write_if_changed(struct buffer *b, const char *fname) write_buf(b, fname); } +/* Write the builtin aliases to the specified file. */ +static void write_builtin(const char *fname) +{ + struct buffer buf = { }; + struct module *mod; + + list_for_each_entry(mod, &modules, list) { + buf_write(&buf, mod->modalias_buf.p, mod->modalias_buf.pos); + } + write_if_changed(&buf, fname); + free(buf.p); +} + static void write_vmlinux_export_c_file(struct module *mod) { struct buffer buf = { }; @@ -2321,13 +2334,16 @@ int main(int argc, char **argv) { struct module *mod; char *missing_namespace_deps = NULL; - char *dump_write = NULL, *files_source = NULL; + char *builtin_write = NULL, *dump_write = NULL, *files_source = NULL; int opt; LIST_HEAD(dump_lists); struct dump_list *dl, *dl2; - while ((opt = getopt(argc, argv, "ei:mnT:o:awENd:")) != -1) { + while ((opt = getopt(argc, argv, "b:ei:mnT:o:awENd:")) != -1) { switch (opt) { + case 'b': + builtin_write = optarg; + break; case 'e': external_module = true; break; @@ -2390,6 +2406,9 @@ int main(int argc, char **argv) write_mod_c_file(mod); } + if (builtin_write) + write_builtin(builtin_write); + if (missing_namespace_deps) write_namespace_deps_files(missing_namespace_deps); diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 34fe5fc0b02cb..c55a6aeb46bfd 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h @@ -123,6 +123,7 @@ struct module { bool has_init; bool has_cleanup; struct buffer dev_table_buf; + struct buffer modalias_buf; char srcversion[25]; // Missing namespace dependencies struct list_head missing_namespaces;