From: Song Liu <songliubraving@fb.com> mainline inclusion from mainline-5.12-rc1 commit d2032d45101670be3a0fe221c815145a41ae2672 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ------------------------------------------------- This target is used to only build the bootstrap bpftool, which will be used to generate bpf skeletons for other tools, like perf. Signed-off-by: Song Liu <songliubraving@fb.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: kernel-team@fb.com Link: http://lore.kernel.org/lkml/20201228174054.907740-2-songliubraving@fb.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> (cherry picked from commit d2032d45101670be3a0fe221c815145a41ae2672) Signed-off-by: Wang Yufen <wangyufen@huawei.com> --- tools/bpf/bpftool/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index df67ef3248e1..f45bc3c7fd07 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -145,6 +145,8 @@ VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux) \ /boot/vmlinux-$(shell uname -r) VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS)))) +bootstrap: $(BPFTOOL_BOOTSTRAP) + ifneq ($(VMLINUX_BTF)$(VMLINUX_H),) ifeq ($(feature-clang-bpf-co-re),1) -- 2.20.1