From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from conuserg-12.nifty.com ([210.131.2.79]:30962 "EHLO conuserg-12.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726762AbgD2Dqg (ORCPT ); Tue, 28 Apr 2020 23:46:36 -0400 From: Masahiro Yamada Subject: [PATCH v2 09/15] samples: connector: build sample program for target architecture Date: Wed, 29 Apr 2020 12:45:21 +0900 Message-Id: <20200429034527.590520-10-masahiroy@kernel.org> In-Reply-To: <20200429034527.590520-1-masahiroy@kernel.org> References: <20200429034527.590520-1-masahiroy@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: linux-kbuild@vger.kernel.org Cc: bpf , Arnd Bergmann , Sam Ravnborg , linux-kernel@vger.kernel.org, Masahiro Yamada This userspace program includes UAPI headers exported to usr/include/. 'make headers' always works for the target architecture (i.e. the same architecture as the kernel), so the sample program should be built for the target as well. Kbuild now supports 'userprogs' for that. $(CC) can always compile cn_text.o since it is the kenrel-space code, but building ucon requires libc. I guarded it by: always-$(CONFIG_CC_CAN_LINK) := $(userprogs) Signed-off-by: Masahiro Yamada Acked-by: Sam Ravnborg --- Changes in v2: None samples/connector/Makefile | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/samples/connector/Makefile b/samples/connector/Makefile index b785cbde5ffa..50cb40e09a7b 100644 --- a/samples/connector/Makefile +++ b/samples/connector/Makefile @@ -1,13 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_SAMPLE_CONNECTOR) += cn_test.o -# List of programs to build -hostprogs := ucon -always-y := $(hostprogs) +userprogs := ucon +always-$(CONFIG_CC_CAN_LINK) := $(userprogs) -HOSTCFLAGS_ucon.o += -I$(objtree)/usr/include - -all: modules - -modules clean: - $(MAKE) -C ../.. M=$(CURDIR) $@ +userccflags += -I usr/include -- 2.25.1