Commit 60fa754b authored by Leo Yan's avatar Leo Yan Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarLeo 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 65c45afb

tools/build/Makefile.feature

+0 −1
Original line number Diff line number Diff line
@@ -34,7 +34,6 @@ FEATURE_TESTS_BASIC := \ 
        dwarf_getlocations              \

        eventfd                         \

        fortify-source                  \

        sync-compare-and-swap           \

        get_current_dir_name            \

        gettid				\

        glibc                           \

tools/build/feature/Makefile

+0 −4
Original line number Diff line number Diff line
@@ -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

tools/build/feature/test-all.c

+0 −4
Original line number Diff line number Diff line
@@ -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

tools/build/feature/test-sync-compare-and-swap.c

deleted100644 → 0
+0 −15
Original line number Diff line number Diff line 
// 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;

}