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author | Leo Yan <leo.yan@linaro.org> | 2021-08-09 19:14:07 +0800 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-08-09 17:02:02 -0300 |
commit | 60fa754b2a5a4e0c44669f8d926a5a980c50b1e8 (patch) | |
tree | dcb05ae99cfe79bcb087dd9fe550ce5c6e6fd3b2 /tools/build | |
parent | 65c45afb14691d431a9b9faef10700f740ab1ba0 (diff) | |
download | lwn-60fa754b2a5a4e0c44669f8d926a5a980c50b1e8.tar.gz lwn-60fa754b2a5a4e0c44669f8d926a5a980c50b1e8.zip |
tools: Remove feature-sync-compare-and-swap feature detection
Since the __sync functions have been removed from perf, it's needless
for perf tool to test the feature sync-compare-and-swap.
The feature test is not used by any other components, remove it.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Daniel Díaz <daniel.diaz@linaro.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: coresight@lists.linaro.org
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20210809111407.596077-10-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build')
-rw-r--r-- | tools/build/Makefile.feature | 1 | ||||
-rw-r--r-- | tools/build/feature/Makefile | 4 | ||||
-rw-r--r-- | tools/build/feature/test-all.c | 4 | ||||
-rw-r--r-- | tools/build/feature/test-sync-compare-and-swap.c | 15 |
4 files changed, 0 insertions, 24 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 04a8e3db8a54..3dd2f68366f9 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -34,7 +34,6 @@ FEATURE_TESTS_BASIC := \ dwarf_getlocations \ eventfd \ fortify-source \ - sync-compare-and-swap \ get_current_dir_name \ gettid \ glibc \ diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index ec203e28407f..eff55d287db1 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -9,7 +9,6 @@ FILES= \ test-dwarf_getlocations.bin \ test-eventfd.bin \ test-fortify-source.bin \ - test-sync-compare-and-swap.bin \ test-get_current_dir_name.bin \ test-glibc.bin \ test-gtk2.bin \ @@ -260,9 +259,6 @@ $(OUTPUT)test-libdw-dwarf-unwind.bin: $(OUTPUT)test-libbabeltrace.bin: $(BUILD) # -lbabeltrace provided by $(FEATURE_CHECK_LDFLAGS-libbabeltrace) -$(OUTPUT)test-sync-compare-and-swap.bin: - $(BUILD) - $(OUTPUT)test-compile-32.bin: $(CC) -m32 -o $@ test-compile.c diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c index 464873883396..920439527291 100644 --- a/tools/build/feature/test-all.c +++ b/tools/build/feature/test-all.c @@ -106,10 +106,6 @@ # include "test-libdw-dwarf-unwind.c" #undef main -#define main main_test_sync_compare_and_swap -# include "test-sync-compare-and-swap.c" -#undef main - #define main main_test_zlib # include "test-zlib.c" #undef main diff --git a/tools/build/feature/test-sync-compare-and-swap.c b/tools/build/feature/test-sync-compare-and-swap.c deleted file mode 100644 index 3bc6b0768a53..000000000000 --- a/tools/build/feature/test-sync-compare-and-swap.c +++ /dev/null @@ -1,15 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <stdint.h> - -volatile uint64_t x; - -int main(int argc, char *argv[]) -{ - uint64_t old, new = argc; - - (void)argv; - do { - old = __sync_val_compare_and_swap(&x, 0, 0); - } while (!__sync_bool_compare_and_swap(&x, old, new)); - return old == new; -} |