From: Nicolas Schier <nicolas@fjasle.eu>
To: Ian Rogers <irogers@google.com>
Cc: 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@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Tom Rix <trix@redhat.com>, Masahiro Yamada <masahiroy@kernel.org>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
bpf@vger.kernel.org, llvm@lists.linux.dev,
Stephane Eranian <eranian@google.com>
Subject: Re: [PATCH 0/5] Improvements to incremental builds
Date: Mon, 12 Dec 2022 21:31:34 +0100 [thread overview]
Message-ID: <Y5ePpm3HKts3b+gJ@fjasle.eu> (raw)
In-Reply-To: <20221202045743.2639466-1-irogers@google.com>
On Thu, Dec 01, 2022 at 08:57:38PM -0800 Ian Rogers wrote:
> Switching to using install_headers caused incremental builds to always
> rebuild most targets. This was caused by the headers always being
> reinstalled and then getting new timestamps causing dependencies to be
> rebuilt. Follow the convention in libbpf where the install targets are
> separated and trigger when the target isn't present or is out-of-date.
>
> Further, fix an issue in the perf build with libpython where
> python/perf.so was also regenerated as the target name was incorrect.
>
> Ian Rogers (5):
> tools lib api: Add dependency test to install_headers
> tools lib perf: Add dependency test to install_headers
> tools lib subcmd: Add dependency test to install_headers
> tools lib symbol: Add dependency test to install_headers
> perf build: Fix python/perf.so library's name
>
> tools/lib/api/Makefile | 38 ++++++++++++++++++++++-----------
> tools/lib/perf/Makefile | 43 +++++++++++++++++++-------------------
> tools/lib/subcmd/Makefile | 23 +++++++++++---------
> tools/lib/symbol/Makefile | 21 ++++++++++++-------
> tools/perf/Makefile.config | 4 +++-
> tools/perf/Makefile.perf | 2 +-
> 6 files changed, 79 insertions(+), 52 deletions(-)
>
> --
> 2.39.0.rc0.267.gcb52ba06e7-goog
Hi Ian,
which tree is your patch set based on? At least it doesn't apply on the
current kbuild trees.
Kind regards,
Nicolas
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next prev parent reply other threads:[~2022-12-12 20:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-02 4:57 [PATCH 0/5] Improvements to incremental builds Ian Rogers
2022-12-02 4:57 ` [PATCH 1/5] tools lib api: Add dependency test to install_headers Ian Rogers
2022-12-02 4:57 ` [PATCH 2/5] tools lib perf: " Ian Rogers
2022-12-16 9:44 ` Alexander Gordeev
2022-12-16 9:50 ` [PATCH] tools lib perf: fix install_pkgconfig target Alexander Gordeev
2022-12-16 13:02 ` Arnaldo Carvalho de Melo
2022-12-02 4:57 ` [PATCH 3/5] tools lib subcmd: Add dependency test to install_headers Ian Rogers
2022-12-12 20:57 ` Nicolas Schier
2022-12-13 21:28 ` Ian Rogers
2022-12-19 14:44 ` Nicolas Schier
2022-12-20 7:33 ` Nicolas Schier
2022-12-02 4:57 ` [PATCH 4/5] tools lib symbol: " Ian Rogers
2022-12-02 4:57 ` [PATCH 5/5] perf build: Fix python/perf.so library's name Ian Rogers
2022-12-05 12:50 ` [PATCH 0/5] Improvements to incremental builds Arnaldo Carvalho de Melo
2022-12-12 20:31 ` Nicolas Schier [this message]
2022-12-13 21:31 ` Ian Rogers
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