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 X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F1F7DC433DB for ; Sun, 17 Jan 2021 11:25:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBFF42074F for ; Sun, 17 Jan 2021 11:25:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727884AbhAQLZD (ORCPT ); Sun, 17 Jan 2021 06:25:03 -0500 Received: from condef-02.nifty.com ([202.248.20.67]:47108 "EHLO condef-02.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726295AbhAQLZD (ORCPT ); Sun, 17 Jan 2021 06:25:03 -0500 Received: from conuserg-10.nifty.com ([10.126.8.73])by condef-02.nifty.com with ESMTP id 10HBJqwA003500 for ; Sun, 17 Jan 2021 20:19:52 +0900 Received: from oscar.flets-west.jp (softbank126026094251.bbtec.net [126.26.94.251]) (authenticated) by conuserg-10.nifty.com with ESMTP id 10HBGXEM004053; Sun, 17 Jan 2021 20:16:34 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-10.nifty.com 10HBGXEM004053 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1610882195; bh=VpBb3xCZqouxrm6ZwD7UxWOfSq9f4ezkEiHwVSXkGjk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vKRhzM0+vIykwl6JU7VjFj+2fHqqglDgqBCeYUdFNvQ42nYIb7T4AjrqplFxk7m8r HfGQ5uZRmAahzZ+QM/gCIjz7U4tB07nL6dMBeRnGH+wb5hnAJv4A8ViFeKZLrNMdqj 5o6TYIgEeXlEkbGwnkM4mSx5KWMcSbmV9r3EmIdYgtyolHVrXy1HX59lO9FVDOISXX gG8JziIS8RalzRROdV8MOMk4nDOHmJxNju5S8wyCSHvmc2Y3rYVag3hFycfXblR3Ad 8lB8fKidN3GaYbHinOfaGJUK6NWzwb3EykJiqZBucXkDezlSAiyTzezH1TKaDhq3jv 3bsIx2I9XqPNw== X-Nifty-SrcIP: [126.26.94.251] From: Masahiro Yamada To: Yoshinori Sato , Rich Felker , linux-sh@vger.kernel.org Cc: Masahiro Yamada , Arnd Bergmann , Brendan Higgins , Greg Kroah-Hartman , Russell King , "Steven Rostedt (VMware)" , linux-kernel@vger.kernel.org Subject: [PATCH 2/2] sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/ Date: Sun, 17 Jan 2021 20:16:32 +0900 Message-Id: <20210117111632.2392635-2-masahiroy@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210117111632.2392635-1-masahiroy@kernel.org> References: <20210117111632.2392635-1-masahiroy@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org Even if none of source code is updated, the following are every time rebuilt: CC arch/sh/boot/compressed/cache.o SHIPPED arch/sh/boot/compressed/ashiftrt.S AS arch/sh/boot/compressed/ashiftrt.o SHIPPED arch/sh/boot/compressed/ashldi3.c CC arch/sh/boot/compressed/ashldi3.o SHIPPED arch/sh/boot/compressed/ashrsi3.S AS arch/sh/boot/compressed/ashrsi3.o SHIPPED arch/sh/boot/compressed/ashlsi3.S AS arch/sh/boot/compressed/ashlsi3.o SHIPPED arch/sh/boot/compressed/lshrsi3.S AS arch/sh/boot/compressed/lshrsi3.o LD arch/sh/boot/compressed/vmlinux OBJCOPY arch/sh/boot/zImage Add build artifacts to 'targets' as needed. I turned the library files to check-in files. It is simpler than copying from arch/sh/lib/ at build-time. Signed-off-by: Masahiro Yamada --- arch/sh/boot/compressed/.gitignore | 5 ----- arch/sh/boot/compressed/Makefile | 32 ++++++++++++------------------ arch/sh/boot/compressed/ashiftrt.S | 2 ++ arch/sh/boot/compressed/ashldi3.c | 2 ++ arch/sh/boot/compressed/ashlsi3.S | 2 ++ arch/sh/boot/compressed/ashrsi3.S | 2 ++ arch/sh/boot/compressed/lshrsi3.S | 2 ++ 7 files changed, 23 insertions(+), 24 deletions(-) create mode 100644 arch/sh/boot/compressed/ashiftrt.S create mode 100644 arch/sh/boot/compressed/ashldi3.c create mode 100644 arch/sh/boot/compressed/ashlsi3.S create mode 100644 arch/sh/boot/compressed/ashrsi3.S create mode 100644 arch/sh/boot/compressed/lshrsi3.S diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore index 37aa53057369..cd16663bc7c8 100644 --- a/arch/sh/boot/compressed/.gitignore +++ b/arch/sh/boot/compressed/.gitignore @@ -1,7 +1,2 @@ # SPDX-License-Identifier: GPL-2.0-only -ashiftrt.S -ashldi3.c -ashlsi3.S -ashrsi3.S -lshrsi3.S vmlinux.bin.* diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile index 589d2d8a573d..cf3174df7859 100644 --- a/arch/sh/boot/compressed/Makefile +++ b/arch/sh/boot/compressed/Makefile @@ -5,12 +5,18 @@ # create a compressed vmlinux image from the original vmlinux # -targets := vmlinux vmlinux.bin vmlinux.bin.gz \ - vmlinux.bin.bz2 vmlinux.bin.lzma \ - vmlinux.bin.xz vmlinux.bin.lzo \ - head_32.o misc.o piggy.o +OBJECTS := head_32.o misc.o cache.o piggy.o \ + ashiftrt.o ashldi3.o ashrsi3.o ashlsi3.o lshrsi3.o + +# These were previously generated files. When you are building the kernel +# with O=, make sure to remove the stale files in the output tree. Otherwise, +# the build system wrongly compiles the stale ones. +ifdef building_out_of_srctree +$(shell rm -f $(addprefix $(obj)/, ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S)) +endif -OBJECTS = $(obj)/head_32.o $(obj)/misc.o $(obj)/cache.o +targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \ + vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS) GCOV_PROFILE := n @@ -33,21 +39,9 @@ ccflags-remove-$(CONFIG_MCOUNT) += -pg LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \ -T $(obj)/../../kernel/vmlinux.lds -# -# Pull in the necessary libgcc bits from the in-kernel implementation. -# -lib1funcs-y := ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S -lib1funcs-obj := \ - $(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y)))) - -lib1funcs-dir := $(srctree)/arch/$(SRCARCH)/lib - -KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING - -$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE - $(call cmd,shipped) +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE +$(obj)/vmlinux: $(addprefix $(obj)/, $(OBJECTS)) FORCE $(call if_changed,ld) $(obj)/vmlinux.bin: vmlinux FORCE diff --git a/arch/sh/boot/compressed/ashiftrt.S b/arch/sh/boot/compressed/ashiftrt.S new file mode 100644 index 000000000000..0f3b291a3f4b --- /dev/null +++ b/arch/sh/boot/compressed/ashiftrt.S @@ -0,0 +1,2 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include "../../lib/ashiftrt.S" diff --git a/arch/sh/boot/compressed/ashldi3.c b/arch/sh/boot/compressed/ashldi3.c new file mode 100644 index 000000000000..7cebd646df83 --- /dev/null +++ b/arch/sh/boot/compressed/ashldi3.c @@ -0,0 +1,2 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include "../../lib/ashldi3.c" diff --git a/arch/sh/boot/compressed/ashlsi3.S b/arch/sh/boot/compressed/ashlsi3.S new file mode 100644 index 000000000000..e354262b275f --- /dev/null +++ b/arch/sh/boot/compressed/ashlsi3.S @@ -0,0 +1,2 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include "../../lib/ashlsi3.S" diff --git a/arch/sh/boot/compressed/ashrsi3.S b/arch/sh/boot/compressed/ashrsi3.S new file mode 100644 index 000000000000..e564be9a4dcd --- /dev/null +++ b/arch/sh/boot/compressed/ashrsi3.S @@ -0,0 +1,2 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include "../../lib/ashrsi3.S" diff --git a/arch/sh/boot/compressed/lshrsi3.S b/arch/sh/boot/compressed/lshrsi3.S new file mode 100644 index 000000000000..5a8281b7e516 --- /dev/null +++ b/arch/sh/boot/compressed/lshrsi3.S @@ -0,0 +1,2 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#include "../../lib/lshrsi3.S" -- 2.27.0