From patchwork Mon Dec 19 20:46:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allen Webb X-Patchwork-Id: 13077158 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 47A41C001B2 for ; Mon, 19 Dec 2022 20:47:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232713AbiLSUrN (ORCPT ); Mon, 19 Dec 2022 15:47:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232710AbiLSUqn (ORCPT ); Mon, 19 Dec 2022 15:46:43 -0500 Received: from mail-io1-xd49.google.com (mail-io1-xd49.google.com [IPv6:2607:f8b0:4864:20::d49]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0B2BF12ABB for ; Mon, 19 Dec 2022 12:46:32 -0800 (PST) Received: by mail-io1-xd49.google.com with SMTP id e15-20020a056602158f00b006e01d8fa493so4614407iow.3 for ; Mon, 19 Dec 2022 12:46:32 -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=gekU6kKP7IIk6R91i2D+kYhQ2/5+ZzFfnfqT/fUlpic=; b=irlGYLfrTeZP9BJWrJoWnhdGeWqcT/6M3D430+H48yklmxreMzES9RrMjRQ7R9s5lo HBLGGYcMEHFXWH/mEAkKPbAtckwDjcL7QW1b+QX4AUICKJZH2LI/wh3nklHQHZN0d0LK dSiNzTmkxNr14tIC+jO2mIGbQTDGo0v0w87//seyz99GDAJFm1RAmNfiuuHAWROQZtb1 YWk6K9arXkw5/2XZzbRnqRQf6+JyYif9lrBHjpWotBKUYZuGLcSOG+4gQu3c0hP9oyUg v0/wHO/Z7PK56gb2l7g5hwVIiBB5IpFU9iFdp8ZwhbJ0BfX5BxjAoZdVDUrWQH2QB/Cx +K5A== 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=gekU6kKP7IIk6R91i2D+kYhQ2/5+ZzFfnfqT/fUlpic=; b=v5XFhoDnAZlDwdj0aJo9s/wQEhVbjMGX6MjwUmT7QBl9jpRncB08tE9kamPx2UL4hj lH8Szp6WI31hyO58hyZvbRk0ZxEVD7j+hTLZtHiyl2PXhFly0ZO9vUN0sbVwI7rw9Ea2 ulAyr7F0fpmy80jyDOWpQdd51l7fmJDYJw9LOuHCTMvusXGoilYG/YzwlbHhu94UJtED HEuLMJKsO26zbp5klhW/sOdInVohndyar2tD1AIqaAElX5KufP81Ijoh3vDkrhRq6EEJ XzRM5QW5A5Un8zdgkjSVzcro7uPgEqRrkAivD9OLAHeEWt4ouwowtqZtFoa5jHxlU6jr 77wA== X-Gm-Message-State: ANoB5placaYg/f7x8G+isgx+bgWtwnPo2JDikj27lsbPRxjoXT3AGTLI wNXQIh4TjKi3G+GLyd/WIwnuvD7ylzA13n09YfMhPgffDNDW7X4g+PZFRUEVUiQADxA+GwHapMM LHSx735YYW3oDCJUYR+zqZWENQns1YnuB1+DhRHyc+uyvm+q0i0yuTgruk4igafKMFCJrgDWhjL 8ZJd0= X-Google-Smtp-Source: AA0mqf4aN7bGxk42XefP/nBp103XKoDM2Xgp8PcWWbeWtkZkSiF3OLgesagNVAAmy5OIWYOD9DDURkstGs6TMOI= X-Received: from allenwebb.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:12e8]) (user=allenwebb job=sendgmr) by 2002:a5e:a711:0:b0:6e3:1926:f46e with SMTP id b17-20020a5ea711000000b006e31926f46emr2270722iod.162.1671482791701; Mon, 19 Dec 2022 12:46:31 -0800 (PST) Date: Mon, 19 Dec 2022 14:46:17 -0600 In-Reply-To: <20221219204619.2205248-1-allenwebb@google.com> Mime-Version: 1.0 References: <20221219191855.2010466-1-allenwebb@google.com> <20221219204619.2205248-1-allenwebb@google.com> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog Message-ID: <20221219204619.2205248-10-allenwebb@google.com> Subject: [PATCH v9 09/10] build: Add modules.builtin.alias 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: Generate modules.builtin.alias using modpost and install it with the modules. Signed-off-by: Allen Webb --- .gitignore | 1 + Makefile | 1 + scripts/Makefile.modpost | 17 ++++++++++++++++- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/.gitignore b/.gitignore index 47229f98b327..40a90bca8964 100644 --- a/.gitignore +++ b/.gitignore @@ -67,6 +67,7 @@ modules.order /System.map /Module.markers /modules.builtin +/modules.builtin.alias /modules.builtin.modinfo /modules.nsdeps diff --git a/Makefile b/Makefile index 78525ebea876..572f364f4053 100644 --- a/Makefile +++ b/Makefile @@ -1558,6 +1558,7 @@ __modinst_pre: fi @sed 's:^:kernel/:' modules.order > $(MODLIB)/modules.order @cp -f modules.builtin $(MODLIB)/ + @cp -f modules.builtin.alias $(MODLIB)/ @cp -f $(objtree)/modules.builtin.modinfo $(MODLIB)/ endif # CONFIG_MODULES diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index e41dee64d429..94c1d66c7769 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -15,6 +15,7 @@ # 2) modpost is then used to # 3) create one .mod.c file per module # 4) create one Module.symvers file with CRC for all exported symbols +# 5) create modules.builtin.alias the aliases for built-in modules # Step 3 is used to place certain information in the module's ELF # section, including information such as: @@ -51,6 +52,21 @@ ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),) modpost-args += -n endif +vmlinux.o-if-present := $(wildcard vmlinux.o) +ifneq ($(vmlinux.o-if-present),) +output-builtin.alias := modules.builtin.alias +modpost-args += -b .modules.builtin.alias.in +.modules.builtin.alias.in: $(output-symdump) + @# Building $(output-symdump) generates .modules.builtin.alias.in as a + @# side effect. + @[ -e $@ ] || $(MODPOST) -b .modules.builtin.alias.in $(vmlinux.o-if-present) + +$(output-builtin.alias): .modules.builtin.alias.in + sort -o $@ $^ + +__modpost: $(output-builtin.alias) +endif + ifeq ($(KBUILD_EXTMOD),) # Generate the list of in-tree objects in vmlinux @@ -78,7 +94,6 @@ targets += .vmlinux.objs .vmlinux.objs: vmlinux.a $(KBUILD_VMLINUX_LIBS) FORCE $(call if_changed,vmlinux_objs) -vmlinux.o-if-present := $(wildcard vmlinux.o) output-symdump := vmlinux.symvers ifdef KBUILD_MODULES