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Peter Anvin" , Mathieu Poirier , Suzuki K Poulose , Mike Leach , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org Cc: Leo Yan Subject: [PATCH v3 07/10] perf: Cleanup for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT Date: Sun, 4 Jul 2021 15:16:41 +0800 Message-Id: <20210704071644.107397-8-leo.yan@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210704071644.107397-1-leo.yan@linaro.org> References: <20210704071644.107397-1-leo.yan@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Since the __sync functions have been dropped, This patch removes unused build and checking for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT in perf tool. Note, there have a test for SYNC_COMPARE_AND_SWAP and the test file is located in build/feature/test-sync-compare-and-swap.c. Since there still has several components using the sync functions, it's deliberately to not be removed. $ cd linux/tools $ git grep __sync_val_compare_and_swap | awk '{ printf $1"\n" }' build/feature/test-sync-compare-and-swap.c: include/asm-generic/atomic-gcc.h: testing/selftests/bpf/progs/atomics.c: testing/selftests/bpf/progs/atomics.c: testing/selftests/bpf/progs/atomics.c: testing/selftests/bpf/progs/atomics.c: testing/selftests/futex/include/atomic.h: testing/selftests/futex/include/futextest.h: Signed-off-by: Leo Yan --- tools/perf/Makefile.config | 4 ---- tools/perf/util/auxtrace.c | 5 ----- 2 files changed, 9 deletions(-) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index eb8e487ef90b..4a0d9a6defc7 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -349,10 +349,6 @@ CXXFLAGS += $(INC_FLAGS) LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS) -ifeq ($(feature-sync-compare-and-swap), 1) - CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT -endif - ifeq ($(feature-pthread-attr-setaffinity-np), 1) CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP endif diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 44bd04dbb6d6..db6255b55c90 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -130,11 +130,6 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm, return 0; } -#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT) - pr_err("Cannot use AUX area tracing mmaps\n"); - return -1; -#endif - pc->aux_offset = mp->offset; pc->aux_size = mp->len; -- 2.25.1