tools build feature: Check if libaio is available (2a07d814) · Commits · 戴 / test

This will be used by 'perf record' to speed up reading the perf ring buffer. Committer testing: $ make -C tools/perf O=/tmp/build/perf make: Entering directory '/home/acme/git/perf/tools/perf' BUILD: Doing 'make -j8' parallel build Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... gtk2: [ OFF ] ... libaudit: [ OFF ] ... libbfd: [ OFF ] ... libelf: [ on ] ... libnuma: [ OFF ] ... numa_num_possible_cpus: [ OFF ] ... libperl: [ OFF ] ... libpython: [ OFF ] ... libslang: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ] ... libaio: [ on ] $ ls -la /tmp/build/perf/feature/test-libaio.* -rwxrwxr-x. 1 acme acme 18296 Nov 26 08:49 /tmp/build/perf/feature/test-libaio.bin -rw-rw-r--. 1 acme acme 1165 Nov 26 08:49 /tmp/build/perf/feature/test-libaio.d -rw-rw-r--. 1 acme acme 0 Nov 26 08:49 /tmp/build/perf/feature/test-libaio.make.output $ $ grep -i aio /tmp/build/perf/FEATURE-DUMP feature-libaio=1 $ Signed-off-by:

Alexey Budankov <alexey.budankov@linux.intel.com> Tested-by:

Arnaldo Carvalho de Melo <acme@redhat.com> Reviewed-by:

Jiri Olsa <jolsa@redhat.com> Acked-by:

Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/5fcda10c-6c63-68df-383a-c6d9e5d1f918@linux.intel.com [ split from a larger patch ] Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/build/Makefile.feature

+4 −2

Original line number	Diff line number	Diff line
		@@ -70,7 +70,8 @@ FEATURE_TESTS_BASIC := \
		sched_getcpu \
		sdt \
		setns \
		libopencsd
		libopencsd \
		libaio

		# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
		# of all feature tests
		@@ -116,7 +117,8 @@ FEATURE_DISPLAY ?= \
		zlib \
		lzma \
		get_cpuid \
		bpf
		bpf \
		libaio

		# Set FEATURE_CHECK_(C\|LD)FLAGS-all for all FEATURE_TESTS features.
		# If in the future we need per-feature checks/flags for features not

tools/build/feature/Makefile

+5 −1

Original line number	Diff line number	Diff line
		@@ -61,7 +61,8 @@ FILES= \
		test-libopencsd.bin \
		test-clang.bin \
		test-llvm.bin \
		test-llvm-version.bin
		test-llvm-version.bin \
		test-libaio.bin

		FILES := $(addprefix $(OUTPUT),$(FILES))

		@@ -297,6 +298,9 @@ $(OUTPUT)test-clang.bin:

		-include $(OUTPUT)*.d

		$(OUTPUT)test-libaio.bin:
		$(BUILD) -lrt

		###############################

		clean:

tools/build/feature/test-all.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,10 @@
		# include "test-libopencsd.c"
		#undef main

		#define main main_test_libaio
		# include "test-libaio.c"
		#undef main

		int main(int argc, char *argv[])
		{
		main_test_libpython();
		@@ -214,6 +218,7 @@ int main(int argc, char *argv[])
		main_test_sdt();
		main_test_setns();
		main_test_libopencsd();
		main_test_libaio();

		return 0;
		}

tools/build/feature/test-libaio.c

0 → 100644

+16 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0
		#include <aio.h>

		int main(void)
		{
		struct aiocb aiocb;

		aiocb.aio_fildes = 0;
		aiocb.aio_offset = 0;
		aiocb.aio_buf = 0;
		aiocb.aio_nbytes = 0;
		aiocb.aio_reqprio = 0;
		aiocb.aio_sigevent.sigev_notify = 1 /SIGEV_NONE/;

		return (int)aio_return(&aiocb);
		}

tools/perf/Makefile.config

+6 −0

Original line number	Diff line number	Diff line
		@@ -365,6 +365,12 @@ ifeq ($(feature-glibc), 1)
		CFLAGS += -DHAVE_GLIBC_SUPPORT
		endif

		ifeq ($(feature-libaio), 1)
		ifndef NO_AIO
		CFLAGS += -DHAVE_AIO_SUPPORT
		endif
		endif

		ifdef NO_DWARF
		NO_LIBDW_DWARF_UNWIND := 1
		endif

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