linux-kernel - [PATCH 0/5] perf build: nondistro build tidyups

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Message-Id: <20251223-james-libbfd-feat-check-v1-0-0e901ba32ed9@linaro.org>
Date: Tue, 23 Dec 2025 17:00:23 +0000
From: James Clark <james.clark@...aro.org>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
 Arnaldo Carvalho de Melo <acme@...nel.org>, 
 Namhyung Kim <namhyung@...nel.org>, Mark Rutland <mark.rutland@....com>, 
 Alexander Shishkin <alexander.shishkin@...ux.intel.com>, 
 Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>, 
 Adrian Hunter <adrian.hunter@...el.com>, 
 Nathan Chancellor <nathan@...nel.org>, 
 Nick Desaulniers <nick.desaulniers+lkml@...il.com>, 
 Bill Wendling <morbo@...gle.com>, Leo Yan <leo.yan@....com>, 
 Justin Stitt <justinstitt@...gle.com>
Cc: linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Roberto Sassu <roberto.sassu@...wei.com>, 
 Alexei Starovoitov <ast@...nel.org>, Andres Freund <andres@...razel.de>, 
 Andrii Nakryiko <andrii@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, Nick Terrell <terrelln@...com>, 
 Song Liu <song@...nel.org>, bpf@...r.kernel.org, llvm@...ts.linux.dev, 
 Arnaldo Carvalho de Melo <acme@...hat.com>, 
 James Clark <james.clark@...aro.org>, 
 Nick Desaulniers <nick.desaulniers+lkml@...il.com>, 
 Quentin Monnet <qmo@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>
Subject: [PATCH 0/5] perf build: nondistro build tidyups

nondistro builds now require a specific version of libbfd, so this adds
an error when doing an explicit BUILD_NONDISTRO build and some other
related tidyups.

I'm not sure if the intention is to skip build-tests if something is
missing, but I see it was done for libbpf versions, so I added the same
for libbfd. This is the main thing that I hit, that build-test all of a
sudden stopped working for me.

The first commit is also a cherry pick of an old commit that seemed to
have been accidentally reverted in the unrelated change linked in the
trailers.

---
James Clark (4):
      perf build: Do all non-distro feature checks in one go
      perf build: Remove unused libbfd-buildid feature test
      perf build: Feature test for libbfd thread safety API
      perf build: Skip nondistro build test if libbfd is old

Roberto Sassu (1):
      perf build: Remove FEATURE_CHECK_LDFLAGS-disassembler-{four-args,init-styled} setting

 tools/build/Makefile.feature                 |  2 +-
 tools/build/feature/Makefile                 |  4 +--
 tools/build/feature/test-libbfd-buildid.c    |  8 -----
 tools/build/feature/test-libbfd-threadsafe.c | 18 ++++++++++
 tools/perf/Makefile.config                   | 54 ++++++++++------------------
 tools/perf/tests/make                        |  5 +++
 6 files changed, 45 insertions(+), 46 deletions(-)
---
base-commit: cbd41c6d4c26c161a2b0e70ad411d3885ff13507
change-id: 20251223-james-libbfd-feat-check-e0cd09d2c1e1

Best regards,
-- 
James Clark <james.clark@...aro.org>