From: James Clark <james.clark@linaro.org>
Date: Tue, 23 Dec 2025 17:00:28 +0000 (+0000)
Subject: perf build: Skip nondistro build test if libbfd is old
X-Git-Tag: v7.0-rc1~16^2~239
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=523471c5163659c61132274123c5470286e407ce;p=thirdparty%2Fkernel%2Flinux.git

perf build: Skip nondistro build test if libbfd is old

Non distro builds now require a new version of libbfd, so skip the test
if the library is too old.

The grep test isn't a strong as the feature test in
test-libbfd-threadsafe.c, but there seems to be precedent for feature
testing this way here and it's good enough for the build-test rule. If
the function exists but returns an error it will be picked up by the
feature test when attempting the build.

Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Leo Yan <leo.yan@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 6641701e48285..36411b4b6d2be 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -124,6 +124,9 @@ make_minimal        += NO_LIBDW_DWARF_UNWIND=1 NO_LIBBPF=1
 make_minimal        += NO_SDT=1 NO_JVMTI=1 NO_LIBZSTD=1
 make_minimal        += NO_LIBCAP=1 NO_CAPSTONE=1
 
+# binutils 2_42 and newer have bfd_thread_init()
+new_libbfd := $(shell echo '#include <bfd.h>' | $(CC) -E -x c - | grep bfd_thread_init)
+
 # $(run) contains all available tests
 run := make_pure
 # Targets 'clean all' can be run together only through top level
@@ -137,7 +140,9 @@ MAKE_F := $(MAKE) -f $(MK)
 endif
 run += make_python_perf_so
 run += make_debug
+ifneq ($(new_libbfd),)
 run += make_nondistro
+endif
 run += make_extra_tests
 run += make_jevents_all
 run += make_no_bpf_skel