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([61.171.236.224]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29b5b00e1fasm124836095ad.0.2025.11.23.23.23.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Nov 2025 23:23:21 -0800 (PST) From: hupu To: namhyung@kernel.org, leo.yan@arm.com Cc: acme@kernel.org, adrian.hunter@intel.com, alexander.shishkin@linux.intel.com, hupu.gm@gmail.com, irogers@google.com, jolsa@kernel.org, justinstitt@google.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, morbo@google.com, nathan@kernel.org, nick.desaulniers+lkml@gmail.com, peterz@infradead.org Subject: [RFC] perf build: Use self-contained headers from kernel source when compiling Date: Mon, 24 Nov 2025 15:23:10 +0800 Message-ID: <20251124072310.3592-1-hupu.gm@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When building perf, switch to using the self-contained headers provided in the kernel source tree to avoid build failures caused by missing architecture-specific headers. For example, the build may fail with errors like: /usr/include/linux/ioctl.h:5:10: fatal error: 'asm/ioctl.h' file not found 5 | #include | ^~~~~~~~~~~~~ This issue may occur because system-installed headers are incomplete, incompatible with the kernel version being built, or the corresponding architecture-specific headers are not installed at all. Using the self-contained headers from the kernel source ensures a consistent and compatible build environment. Signed-off-by: hupu --- tools/perf/Makefile.perf | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 47c906b807ef..eaccaae87e3c 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -1202,7 +1202,9 @@ endif CLANG_OPTIONS = -Wall CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH)) -BPF_INCLUDE := -I$(SKEL_TMP_OUT)/.. -I$(LIBBPF_INCLUDE) $(CLANG_SYS_INCLUDES) +KHDR_INCLUDES := $(abspath $(OUTPUT)/../../usr/include) +BPF_INCLUDE := -I$(SKEL_TMP_OUT)/.. -I$(LIBBPF_INCLUDE) \ + -I$(KHDR_INCLUDES) $(CLANG_SYS_INCLUDES) TOOLS_UAPI_INCLUDE := -I$(srctree)/tools/include/uapi ifneq ($(WERROR),0) -- 2.43.0