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 0E771C433F5 for ; Tue, 19 Apr 2022 00:46:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243898AbiDSAtc (ORCPT ); Mon, 18 Apr 2022 20:49:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241419AbiDSApS (ORCPT ); Mon, 18 Apr 2022 20:45:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E0B132DD47 for ; Mon, 18 Apr 2022 17:42:36 -0700 (PDT) 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 AF09061435 for ; Tue, 19 Apr 2022 00:42:29 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F650C341C6; Tue, 19 Apr 2022 00:42:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650328948; bh=fO3ANS+3+Q4svTIvmIKIZkxe9FFvIXzh9NCzYaoF7rI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=muAXkONmum4tn/Y+1beOr/AoTCDfM2WUed+3fronYty6s9IrfhZzJC7Lc7pW7saSH uVoP3bDWZyYjEbLRmlazrYkOx0z/5rIVY47ni7DhLfrDerdejXe/6hzPS8emuemqKo 8fFJp4lno4veN6QpgCCelc6W/CI1WVUVZAaokVxx/TXo/VGgxsDI6w/lA3WuAKT16g 9gG4svnVYe8QFS/NIFwoCmxtSHuseuOVCSBJWRB+ovY4IVgwcLPoyZgS86d2Aonohd DRb9Xo6c9c2/pjc8h7Q3bALvLlhJjua86qHUiz7b1pC8NHq2n7TUst3qaHRbBIBmVy aJ43JNfiuL+XQ== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 60CC75C3239; Mon, 18 Apr 2022 17:42:27 -0700 (PDT) From: "Paul E. McKenney" To: linux-kernel@vger.kernel.org Cc: gwml@vger.gnuweeb.org, kernel-team@fb.com, w@lwt.eu, Willy Tarreau , "Paul E . McKenney" Subject: [PATCH nolibc 49/61] tools/nolibc: add a makefile to install headers Date: Mon, 18 Apr 2022 17:42:13 -0700 Message-Id: <20220419004225.3952530-49-paulmck@kernel.org> X-Mailer: git-send-email 2.31.1.189.g2e36527f23 In-Reply-To: <20220419004219.GA3952301@paulmck-ThinkPad-P17-Gen-1> References: <20220419004219.GA3952301@paulmck-ThinkPad-P17-Gen-1> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Willy Tarreau This provides a target "headers_standalone" which installs the nolibc's arch-specific headers with "arch.h" taken from the current arch (or a concatenation of both i386 and x86_64 for arch=x86), then installs kernel headers. This creates a convenient sysroot which is directly usable by a bare-metal compiler to create any executable. Signed-off-by: Willy Tarreau Signed-off-by: Paul E. McKenney --- tools/include/nolibc/Makefile | 42 +++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 tools/include/nolibc/Makefile diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile new file mode 100644 index 000000000000..7a16d917c185 --- /dev/null +++ b/tools/include/nolibc/Makefile @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: GPL-2.0 +# Makefile for nolibc installation and tests +include ../../scripts/Makefile.include + +# we're in ".../tools/include/nolibc" +ifeq ($(srctree),) +srctree := $(patsubst %/tools/include/,%,$(dir $(CURDIR))) +endif + +nolibc_arch := $(patsubst arm64,aarch64,$(ARCH)) +arch_file := arch-$(nolibc_arch).h +all_files := ctype.h errno.h nolibc.h signal.h std.h stdio.h stdlib.h string.h \ + sys.h time.h types.h unistd.h + +# install all headers needed to support a bare-metal compiler +all: + +# Note: when ARCH is "x86" we concatenate both x86_64 and i386 +headers: + $(Q)mkdir -p $(OUTPUT)sysroot + $(Q)mkdir -p $(OUTPUT)sysroot/include + $(Q)cp $(all_files) $(OUTPUT)sysroot/include/ + $(Q)if [ "$(ARCH)" = "x86" ]; then \ + sed -e \ + 's,^#ifndef _NOLIBC_ARCH_X86_64_H,#if !defined(_NOLIBC_ARCH_X86_64_H) \&\& defined(__x86_64__),' \ + arch-x86_64.h; \ + sed -e \ + 's,^#ifndef _NOLIBC_ARCH_I386_H,#if !defined(_NOLIBC_ARCH_I386_H) \&\& !defined(__x86_64__),' \ + arch-i386.h; \ + elif [ -e "$(arch_file)" ]; then \ + cat $(arch_file); \ + else \ + echo "Fatal: architecture $(ARCH) not yet supported by nolibc." >&2; \ + exit 1; \ + fi > $(OUTPUT)sysroot/include/arch.h + +headers_standalone: headers + $(Q)$(MAKE) -C $(srctree) headers + $(Q)$(MAKE) -C $(srctree) headers_install INSTALL_HDR_PATH=$(OUTPUT)/sysroot + +clean: + $(call QUIET_CLEAN, nolibc) rm -rf "$(OUTPUT)sysroot" -- 2.31.1.189.g2e36527f23