linux-kernel - [PATCH v1 2/5] perf build: Don't add NO_AUXTRACE if missing feature-get

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Message-ID: <20251110013152.3099080-3-irogers@google.com>
Date: Sun,  9 Nov 2025 17:31:49 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	John Garry <john.g.garry@...cle.com>, Will Deacon <will@...nel.org>, 
	James Clark <james.clark@...aro.org>, Mike Leach <mike.leach@...aro.org>, 
	Leo Yan <leo.yan@...ux.dev>, Suzuki K Poulose <suzuki.poulose@....com>, 
	Yicong Yang <yangyicong@...ilicon.com>, Jonathan Cameron <jonathan.cameron@...wei.com>, 
	Thomas Gleixner <tglx@...utronix.de>, Darren Hart <dvhart@...radead.org>, 
	Davidlohr Bueso <dave@...olabs.net>, 
	"André Almeida" <andrealmeid@...lia.com>, Tomas Glozar <tglozar@...hat.com>, 
	Quentin Monnet <qmo@...nel.org>, Yuzhuo Jing <yuzhuo@...gle.com>, Blake Jones <blakejones@...gle.com>, 
	Charlie Jenkins <charlie@...osinc.com>, Yeoreum Yun <yeoreum.yun@....com>, 
	Athira Rajeev <atrajeev@...ux.ibm.com>, Ravi Bangoria <ravi.bangoria@....com>, 
	Collin Funk <collin.funk1@...il.com>, Dapeng Mi <dapeng1.mi@...ux.intel.com>, 
	Thomas Richter <tmricht@...ux.ibm.com>, Dmitry Vyukov <dvyukov@...gle.com>, 
	Andi Kleen <ak@...ux.intel.com>, Howard Chu <howardchu95@...il.com>, 
	Zecheng Li <zecheng@...gle.com>, tanze <tanze@...inos.cn>, 
	Gabriele Monaco <gmonaco@...hat.com>, GuoHan Zhao <zhaoguohan@...inos.cn>, 
	Markus Elfring <Markus.Elfring@....de>, Colin Ian King <colin.i.king@...il.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, "Dr. David Alan Gilbert" <linux@...blig.org>, 
	Jean-Philippe Romain <jean-philippe.romain@...s.st.com>, Yang Li <yang.lee@...ux.alibaba.com>, 
	linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: [PATCH v1 2/5] perf build: Don't add NO_AUXTRACE if missing feature-get_cpuid

The intel-pt code dependent on __get_cpuid is no longer present so
remove the feature test in the Makefile.config.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/Makefile.config | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 5700516aa84a..5decc3d5fef8 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1114,16 +1114,8 @@ ifndef NO_CAPSTONE
 endif
 
 ifndef NO_AUXTRACE
-  ifeq ($(SRCARCH),x86)
-    ifeq ($(feature-get_cpuid), 0)
-      $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
-      NO_AUXTRACE := 1
-    endif
-  endif
-  ifndef NO_AUXTRACE
-    $(call detected,CONFIG_AUXTRACE)
-    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
-  endif
+  $(call detected,CONFIG_AUXTRACE)
+  CFLAGS += -DHAVE_AUXTRACE_SUPPORT
 endif
 
 ifdef EXTRA_TESTS
-- 
2.51.2.1041.gc1ab5b90ca-goog