From: Ian Rogers <irogers@google.com>
To: "Peter Zijlstra" <peterz@infradead.org>,
"Ingo Molnar" <mingo@redhat.com>,
"Arnaldo Carvalho de Melo" <acme@kernel.org>,
"Namhyung Kim" <namhyung@kernel.org>,
"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
"Jiri Olsa" <jolsa@kernel.org>, "Ian Rogers" <irogers@google.com>,
"Adrian Hunter" <adrian.hunter@intel.com>,
"John Garry" <john.g.garry@oracle.com>,
"Will Deacon" <will@kernel.org>,
"James Clark" <james.clark@linaro.org>,
"Mike Leach" <mike.leach@linaro.org>,
"Leo Yan" <leo.yan@linux.dev>,
"Suzuki K Poulose" <suzuki.poulose@arm.com>,
"Yicong Yang" <yangyicong@hisilicon.com>,
"Jonathan Cameron" <jonathan.cameron@huawei.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Darren Hart" <dvhart@infradead.org>,
"Davidlohr Bueso" <dave@stgolabs.net>,
"André Almeida" <andrealmeid@igalia.com>,
"Tomas Glozar" <tglozar@redhat.com>,
"Quentin Monnet" <qmo@kernel.org>,
"Yuzhuo Jing" <yuzhuo@google.com>,
"Blake Jones" <blakejones@google.com>,
"Charlie Jenkins" <charlie@rivosinc.com>,
"Yeoreum Yun" <yeoreum.yun@arm.com>,
"Athira Rajeev" <atrajeev@linux.ibm.com>,
"Ravi Bangoria" <ravi.bangoria@amd.com>,
"Collin Funk" <collin.funk1@gmail.com>,
"Dapeng Mi" <dapeng1.mi@linux.intel.com>,
"Thomas Richter" <tmricht@linux.ibm.com>,
"Dmitry Vyukov" <dvyukov@google.com>,
"Andi Kleen" <ak@linux.intel.com>,
"Howard Chu" <howardchu95@gmail.com>,
"Zecheng Li" <zecheng@google.com>, tanze <tanze@kylinos.cn>,
"Gabriele Monaco" <gmonaco@redhat.com>,
"GuoHan Zhao" <zhaoguohan@kylinos.cn>,
"Markus Elfring" <Markus.Elfring@web.de>,
"Colin Ian King" <colin.i.king@gmail.com>,
"Kan Liang" <kan.liang@linux.intel.com>,
"Dr. David Alan Gilbert" <linux@treblig.org>,
"Jean-Philippe Romain" <jean-philippe.romain@foss.st.com>,
"Yang Li" <yang.lee@linux.alibaba.com>,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org
Subject: [PATCH v1 3/5] tool build: Remove __get_cpuid feature test
Date: Sun, 9 Nov 2025 17:31:50 -0800 [thread overview]
Message-ID: <20251110013152.3099080-4-irogers@google.com> (raw)
In-Reply-To: <20251110013152.3099080-1-irogers@google.com>
This feature test is no longer used so remove.
The function tested by the feature test is used in:
tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.c
however, the Makefile just assumes the presence of the function and
doesn't perform a build feature test for it.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/build/Makefile.feature | 2 --
tools/build/feature/Makefile | 4 ----
tools/build/feature/test-all.c | 5 -----
tools/build/feature/test-get_cpuid.c | 8 --------
4 files changed, 19 deletions(-)
delete mode 100644 tools/build/feature/test-get_cpuid.c
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 32bbe29fe5f6..fc6abe369f73 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -90,7 +90,6 @@ FEATURE_TESTS_BASIC := \
timerfd \
zlib \
lzma \
- get_cpuid \
bpf \
scandirat \
sched_getcpu \
@@ -146,7 +145,6 @@ FEATURE_DISPLAY ?= \
llvm-perf \
zlib \
lzma \
- get_cpuid \
bpf \
libaio \
libzstd
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 49b0add392b1..7c90e0d0157a 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -56,7 +56,6 @@ FILES= \
test-lzma.bin \
test-bpf.bin \
test-libbpf.bin \
- test-get_cpuid.bin \
test-sdt.bin \
test-cxx.bin \
test-gettid.bin \
@@ -318,9 +317,6 @@ $(OUTPUT)test-zlib.bin:
$(OUTPUT)test-lzma.bin:
$(BUILD) -llzma
-$(OUTPUT)test-get_cpuid.bin:
- $(BUILD)
-
$(OUTPUT)test-bpf.bin:
$(BUILD)
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 8a354b81417c..eb346160d0ba 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -114,10 +114,6 @@
# include "test-lzma.c"
#undef main
-#define main main_test_get_cpuid
-# include "test-get_cpuid.c"
-#undef main
-
#define main main_test_bpf
# include "test-bpf.c"
#undef main
@@ -168,7 +164,6 @@ int main(int argc, char *argv[])
main_test_pthread_attr_setaffinity_np();
main_test_pthread_barrier();
main_test_lzma();
- main_test_get_cpuid();
main_test_bpf();
main_test_scandirat();
main_test_sched_getcpu();
diff --git a/tools/build/feature/test-get_cpuid.c b/tools/build/feature/test-get_cpuid.c
deleted file mode 100644
index bb4f065f28a6..000000000000
--- a/tools/build/feature/test-get_cpuid.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <cpuid.h>
-
-int main(void)
-{
- unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0;
- return __get_cpuid(0x15, &eax, &ebx, &ecx, &edx);
-}
--
2.51.2.1041.gc1ab5b90ca-goog
next prev parent reply other threads:[~2025-11-10 1:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-10 1:31 [PATCH v1 0/5] Remove NO_AUXTRACE build option Ian Rogers
2025-11-10 1:31 ` [PATCH v1 1/5] perf intel-pt: Use the perf provided "cpuid.h" Ian Rogers
2025-11-10 1:31 ` [PATCH v1 2/5] perf build: Don't add NO_AUXTRACE if missing feature-get_cpuid Ian Rogers
2025-11-10 1:31 ` Ian Rogers [this message]
2025-11-10 1:31 ` [PATCH v1 4/5] perf build: Remove NO_AUXTRACE build option Ian Rogers
2025-11-10 1:31 ` [PATCH v1 5/5] perf auxtrace: Remove errno.h from auxtrace.h and fix transitive dependencies Ian Rogers
2025-11-11 6:21 ` [PATCH v1 0/5] Remove NO_AUXTRACE build option Namhyung Kim
2025-11-11 18:01 ` Ian Rogers
2025-11-12 9:21 ` James Clark
2025-11-14 18:35 ` Namhyung Kim
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