From patchwork Thu Apr 23 07:39:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 11505217 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4F34092A for ; Thu, 23 Apr 2020 07:42:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32E1221569 for ; Thu, 23 Apr 2020 07:42:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587627739; bh=aJn229xEQdpNFNmggF7eNpc9MWQIN+6KnpY4VUDGxh8=; h=From:To:Cc:Subject:Date:List-ID:From; b=Al+ASYWsFwK6TwdVo/2PMNGWxvu2r9fsHOtQ6h5NVKtIgYLPMIUBiOycKkdYR+f0H JOGur3hAOFO+Fg0P22nDyQ8EAyiE+hQBaFGi5NOy8B/RjEhJ9SVaagcxMn9nt49z9K H40wq23hF4yOALxxm431Cl0ahq3SXOYWd/+1ugwg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727834AbgDWHmO (ORCPT ); Thu, 23 Apr 2020 03:42:14 -0400 Received: from conuserg-10.nifty.com ([210.131.2.77]:34844 "EHLO conuserg-10.nifty.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725854AbgDWHmN (ORCPT ); Thu, 23 Apr 2020 03:42:13 -0400 Received: from oscar.flets-west.jp (softbank126090202047.bbtec.net [126.90.202.47]) (authenticated) by conuserg-10.nifty.com with ESMTP id 03N7dV9L000368; Thu, 23 Apr 2020 16:39:32 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-10.nifty.com 03N7dV9L000368 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1587627573; bh=EYsJ2uRz3WzlUm4V0pOlApP3srqM3AzplJXKFcPvEZc=; h=From:To:Cc:Subject:Date:From; b=YP/cvFIDqNzUc1LGLrpWHugU6378NxtI+s6jypZfvWr37vn0c2PyraGPlREaAqEnQ FC1fPQYiietJ+VjRm+QAa2UHsfgcqar1R4Y8TA7XJVvbfqBD5wafX0GIrmnV5pHmHh 8q5jt3rWU7dnCSGSZ6CCjGpaYlwCjjUKfj+RanMm/ZTFwZeY/4AKlUmyBZpsFcYdS1 zSX7an90gnGH+1EzAWoWJLkNef6Aq6rRejTbRIHliWScMURQ7y5lDCp3gkCI9qUiNU 0XISVVH5T4wiwolwemmrDutqkAe8H17XGYnW/Q8jrBhvoUUYbV1xExyHCGSZ7YmSk8 O0kUSWi3KCBuA== X-Nifty-SrcIP: [126.90.202.47] From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: bpf@vger.kernel.org, Sam Ravnborg , Masahiro Yamada , Alexei Starovoitov , Andrii Nakryiko , Christian Brauner , Daniel Borkmann , "David S. Miller" , Jakub Kicinski , John Fastabend , Jonathan Corbet , KP Singh , Martin KaFai Lau , Michal Marek , Song Liu , Tomas Winkler , Yonghong Song , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 00/16] kbuild: support 'userprogs' syntax Date: Thu, 23 Apr 2020 16:39:13 +0900 Message-Id: <20200423073929.127521-1-masahiroy@kernel.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org Several Makefiles use 'hostprogs' for building the code for the host architecture is not appropriate. This is just because Kbuild does not provide the syntax to do it. This series introduce 'userprogs' syntax and use it from sample and bpf Makefiles. Sam worked on this in 2014. https://lkml.org/lkml/2014/7/13/154 He used 'uapiprogs-y' but I just thought the meaning of "UAPI programs" is unclear. Naming is one the most difficult parts of this. I chose 'userprogs'. Anothor choice I had in my mind was 'targetprogs'. If you can test this series quickly by 'make allmodconfig samples/' When building objects for userspace, [U] is displayed. masahiro@oscar:~/workspace/linux$ make allmodconfig samples/ [snip] AR samples/vfio-mdev/built-in.a CC [M] samples/vfio-mdev/mtty.o CC [M] samples/vfio-mdev/mdpy.o CC [M] samples/vfio-mdev/mdpy-fb.o CC [M] samples/vfio-mdev/mbochs.o AR samples/mei/built-in.a CC [U] samples/mei/mei-amt-version CC [U] samples/auxdisplay/cfag12864b-example CC [M] samples/configfs/configfs_sample.o CC [M] samples/connector/cn_test.o CC [U] samples/connector/ucon CC [M] samples/ftrace/ftrace-direct.o CC [M] samples/ftrace/ftrace-direct-too.o CC [M] samples/ftrace/ftrace-direct-modify.o CC [M] samples/ftrace/sample-trace-array.o CC [U] samples/hidraw/hid-example CC [M] samples/hw_breakpoint/data_breakpoint.o CC [M] samples/kdb/kdb_hello.o CC [M] samples/kfifo/bytestream-example.o CC [M] samples/kfifo/dma-example.o CC [M] samples/kfifo/inttype-example.o CC [M] samples/kfifo/record-example.o CC [M] samples/kobject/kobject-example.o CC [M] samples/kobject/kset-example.o CC [M] samples/kprobes/kprobe_example.o CC [M] samples/kprobes/kretprobe_example.o CC [M] samples/livepatch/livepatch-sample.o CC [M] samples/livepatch/livepatch-shadow-mod.o CC [M] samples/livepatch/livepatch-shadow-fix1.o CC [M] samples/livepatch/livepatch-shadow-fix2.o CC [M] samples/livepatch/livepatch-callbacks-demo.o CC [M] samples/livepatch/livepatch-callbacks-mod.o CC [M] samples/livepatch/livepatch-callbacks-busymod.o CC [M] samples/rpmsg/rpmsg_client_sample.o CC [U] samples/seccomp/bpf-fancy.o CC [U] samples/seccomp/bpf-helper.o LD [U] samples/seccomp/bpf-fancy CC [U] samples/seccomp/dropper CC [U] samples/seccomp/bpf-direct CC [U] samples/seccomp/user-trap CC [U] samples/timers/hpet_example CC [M] samples/trace_events/trace-events-sample.o CC [M] samples/trace_printk/trace-printk.o CC [U] samples/uhid/uhid-example CC [M] samples/v4l/v4l2-pci-skeleton.o CC [U] samples/vfs/test-fsmount CC [U] samples/vfs/test-statx samples/vfs/test-statx.c:24:15: warning: ‘struct foo’ declared inside parameter list will not be visible outside of this definition or declaration 24 | #define statx foo | ^~~ CC [U] samples/watchdog/watchdog-simple AR samples/built-in.a Masahiro Yamada (15): Documentation: kbuild: fix the section title format Revert "objtool: Skip samples subdirectory" kbuild: add infrastructure to build userspace programs net: bpfilter: use 'userprogs' syntax to build bpfilter_umh samples: seccomp: build sample programs for target architecture kbuild: doc: document the new syntax 'userprogs' samples: uhid: build sample program for target architecture samples: hidraw: build sample program for target architecture samples: connector: build sample program for target architecture samples: vfs: build sample programs for target architecture samples: pidfd: build sample program for target architecture samples: mei: build sample program for target architecture samples: auxdisplay: use 'userprogs' syntax samples: timers: use 'userprogs' syntax samples: watchdog: use 'userprogs' syntax Sam Ravnborg (1): samples: uhid: fix warnings in uhid-example Documentation/kbuild/makefiles.rst | 185 +++++++++++++++++++++-------- Makefile | 11 +- net/bpfilter/Makefile | 11 +- samples/Kconfig | 26 +++- samples/Makefile | 5 +- samples/auxdisplay/Makefile | 11 +- samples/connector/Makefile | 12 +- samples/hidraw/Makefile | 9 +- samples/mei/Makefile | 9 +- samples/pidfd/Makefile | 8 +- samples/seccomp/Makefile | 42 +------ samples/timers/Makefile | 17 +-- samples/uhid/.gitignore | 2 + samples/uhid/Makefile | 9 +- samples/uhid/uhid-example.c | 4 +- samples/vfs/Makefile | 11 +- samples/watchdog/Makefile | 10 +- scripts/Makefile.build | 5 + scripts/Makefile.clean | 2 +- scripts/Makefile.userprogs | 44 +++++++ 20 files changed, 258 insertions(+), 175 deletions(-) create mode 100644 samples/uhid/.gitignore create mode 100644 scripts/Makefile.userprogs Acked-by: Sam Ravnborg