Add test-ubpf.c to find libubpf, which can be found from [1]. ubpf is user space BPF engine. Following commits will utilize ubpf to make perf dynamically run some profiling scripts in user space.
[1] https://github.com/iovisor/ubpf.git Signed-off-by: Wang Nan <wangn...@huawei.com> Cc: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Alexei Starovoitov <a...@kernel.org> Cc: Brendan Gregg <brendan.d.gr...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Li Zefan <lize...@huawei.com> --- tools/build/Makefile.feature | 6 ++++-- tools/build/feature/Makefile | 6 +++++- tools/build/feature/test-ubpf.c | 11 +++++++++++ tools/lib/bpf/Makefile | 4 ++-- 4 files changed, 22 insertions(+), 5 deletions(-) create mode 100644 tools/build/feature/test-ubpf.c diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 9f87861..eb84b6a 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -56,7 +56,8 @@ FEATURE_TESTS_BASIC := \ zlib \ lzma \ get_cpuid \ - bpf + bpf \ + ubpf # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list # of all feature tests @@ -96,7 +97,8 @@ FEATURE_DISPLAY ?= \ zlib \ lzma \ get_cpuid \ - bpf + bpf \ + ubpf # 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 diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 4ae94db..7480e0f 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -37,7 +37,8 @@ FILES= \ test-zlib.bin \ test-lzma.bin \ test-bpf.bin \ - test-get_cpuid.bin + test-get_cpuid.bin \ + test-ubpf.bin FILES := $(addprefix $(OUTPUT),$(FILES)) @@ -182,6 +183,9 @@ $(OUTPUT)test-get_cpuid.bin: $(OUTPUT)test-bpf.bin: $(BUILD) +$(OUTPUT)test-ubpf.bin: + $(BUILD) -lubpf + -include $(OUTPUT)*.d ############################### diff --git a/tools/build/feature/test-ubpf.c b/tools/build/feature/test-ubpf.c new file mode 100644 index 0000000..3c0a257 --- /dev/null +++ b/tools/build/feature/test-ubpf.c @@ -0,0 +1,11 @@ +#include <stdlib.h> +#include <ubpf.h> + +int main(void) +{ + struct ubpf_vm *vm; + + vm = ubpf_create(); + ubpf_destroy(vm); + return 0; +} diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index fc1bc75..8dfa512 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -65,8 +65,8 @@ ifndef VERBOSE endif FEATURE_USER = .libbpf -FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf -FEATURE_DISPLAY = libelf bpf +FEATURE_TESTS = libelf libelf-getphdrnum libelf-mmap bpf ubpf +FEATURE_DISPLAY = libelf bpf ubpf INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES) -- 1.8.3.4
