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From: Andrii Nakryiko <andrii.nakryiko@gmail.com>
To: "Toke Høiland-Jørgensen" <toke@redhat.com>
Cc: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
	Yonghong Song <yhs@fb.com>, Andrii Nakryiko <andriin@fb.com>,
	Doug Ledford <dledford@redhat.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <jakub.kicinski@netronome.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
	Shuah Khan <shuah@kernel.org>,
	Networking <netdev@vger.kernel.org>, bpf <bpf@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	linux-rdma@vger.kernel.org,
	"open list:KERNEL SELFTEST FRAMEWORK" 
	<linux-kselftest@vger.kernel.org>,
	clang-built-linux@googlegroups.com
Subject: Re: [PATCH bpf-next v2 00/10] tools: Use consistent libbpf include paths everywhere
Date: Wed, 15 Jan 2020 10:06:01 -0800
Message-ID: <CAEf4Bza+dNoD7HbVQGtXBq=raz4DQg0yTShKZHRbCo+zHYfoSA@mail.gmail.com> (raw)
In-Reply-To: <157909756858.1192265.6657542187065456112.stgit@toke.dk>

On Wed, Jan 15, 2020 at 6:13 AM Toke Høiland-Jørgensen <toke@redhat.com> wrote:
>
> The recent commit 6910d7d3867a ("selftests/bpf: Ensure bpf_helper_defs.h are
> taken from selftests dir") broke compilation against libbpf if it is installed
> on the system, and $INCLUDEDIR/bpf is not in the include path.
>
> Since having the bpf/ subdir of $INCLUDEDIR in the include path has never been a
> requirement for building against libbpf before, this needs to be fixed. One
> option is to just revert the offending commit and figure out a different way to
> achieve what it aims for. However, this series takes a different approach:
> Changing all in-tree users of libbpf to consistently use a bpf/ prefix in
> #include directives for header files from libbpf.
>
> This turns out to be a somewhat invasive change in the number of files touched;
> however, the actual changes to files are fairly trivial (most of them are simply
> made with 'sed'). Also, this approach has the advantage that it makes external
> and internal users consistent with each other, and ensures no future changes
> breaks things in the same way as the commit referenced above.
>
> The series is split to make the change for one tool subdir at a time, while
> trying not to break the build along the way. It is structured like this:
>
> - Patch 1-2: Trivial fixes to Makefiles for issues I discovered while changing
>   the include paths.
>
> - Patch 3-7: Change the include directives to use the bpf/ prefix, and updates
>   Makefiles to make sure tools/lib/ is part of the include path, but without
>   removing tools/lib/bpf
>
> - Patch 8: Change the bpf_helpers file in libbpf itself to use the bpf/ prefix
>   when including (the original source of breakage).
>
> - Patch 9-10: Remove tools/lib/bpf from include paths to make sure we don't
>   inadvertently re-introduce includes without the bpf/ prefix.
>
> ---

Thanks, Toke, for this clean up! I tested it locally for my set up:
runqslower, bpftool, libbpf, and selftests all build fine, so it looks
good. My only concern is with selftests/bpf Makefile, we shouldn't
build anything outside of selftests/bpf. Let's fix that. Thanks!

>
> Toke Høiland-Jørgensen (10):
>       samples/bpf: Don't try to remove user's homedir on clean
>       tools/bpf/runqslower: Fix override option for VMLINUX_BTF
>       tools/runqslower: Use consistent include paths for libbpf
>       selftests: Use consistent include paths for libbpf
>       bpftool: Use consistent include paths for libbpf
>       perf: Use consistent include paths for libbpf
>       samples/bpf: Use consistent include paths for libbpf
>       libbpf: Fix include of bpf_helpers.h when libbpf is installed on system
>       selftests: Remove tools/lib/bpf from include path
>       tools/runqslower: Remove tools/lib/bpf from include path
>
>

[...]

  parent reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-15 14:12 Toke Høiland-Jørgensen
2020-01-15 14:12 ` [PATCH bpf-next v2 01/10] samples/bpf: Don't try to remove user's homedir on clean Toke Høiland-Jørgensen
2020-01-15 15:21   ` Jesper Dangaard Brouer
2020-01-15 14:12 ` [PATCH bpf-next v2 02/10] tools/bpf/runqslower: Fix override option for VMLINUX_BTF Toke Høiland-Jørgensen
2020-01-15 16:59   ` Andrii Nakryiko
2020-01-15 22:06     ` Toke Høiland-Jørgensen
2020-01-15 22:31       ` Andrii Nakryiko
2020-01-16  9:05         ` Toke Høiland-Jørgensen
2020-01-16 17:14           ` Andrii Nakryiko
2020-01-15 14:12 ` [PATCH bpf-next v2 03/10] tools/runqslower: Use consistent include paths for libbpf Toke Høiland-Jørgensen
2020-01-15 14:12 ` [PATCH bpf-next v2 04/10] selftests: " Toke Høiland-Jørgensen
2020-01-15 14:12 ` [PATCH bpf-next v2 05/10] bpftool: " Toke Høiland-Jørgensen
2020-01-15 17:44   ` Andrii Nakryiko
2020-01-15 14:12 ` [PATCH bpf-next v2 06/10] perf: " Toke Høiland-Jørgensen
2020-01-15 14:12 ` [PATCH bpf-next v2 07/10] samples/bpf: " Toke Høiland-Jørgensen
2020-01-15 15:18   ` Jesper Dangaard Brouer
2020-01-15 15:41     ` Toke Høiland-Jørgensen
2020-01-15 14:12 ` [PATCH bpf-next v2 08/10] libbpf: Fix include of bpf_helpers.h when libbpf is installed on system Toke Høiland-Jørgensen
2020-01-15 14:12 ` [PATCH bpf-next v2 09/10] selftests: Remove tools/lib/bpf from include path Toke Høiland-Jørgensen
2020-01-15 17:22   ` Andrii Nakryiko
2020-01-15 14:12 ` [PATCH bpf-next v2 10/10] tools/runqslower: " Toke Høiland-Jørgensen
2020-01-15 18:06 ` Andrii Nakryiko [this message]
2020-01-15 22:10   ` [PATCH bpf-next v2 00/10] tools: Use consistent libbpf include paths everywhere Toke Høiland-Jørgensen
2020-01-15 21:19 ` Alexei Starovoitov
2020-01-15 22:09   ` Toke Høiland-Jørgensen

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