diff options
| author |   Quentin Monnet <quentin@isovalent.com> | 2020-04-29 15:45:06 +0100 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2020-04-29 23:25:11 +0200 |
| commit | 0b3b9ca3d154486baa08a41cbc62fde67ba8c6c3 (patch) | |
| tree | ec30b445def82778746dca7a9f5ad752abaf7112 /tools/bpf/bpftool/Makefile | |
| parent | tools: bpftool: Allow unprivileged users to probe features (diff) | |
| download | linux-dev-0b3b9ca3d154486baa08a41cbc62fde67ba8c6c3.tar.xz linux-dev-0b3b9ca3d154486baa08a41cbc62fde67ba8c6c3.zip | |
tools: bpftool: Make libcap dependency optional
The new libcap dependency is not used for an essential feature of
bpftool, and we could imagine building the tool without checks on
CAP_SYS_ADMIN by disabling probing features as an unprivileged users.
Make it so, in order to avoid a hard dependency on libcap, and to ease
packaging/embedding of bpftool.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200429144506.8999-4-quentin@isovalent.com
Diffstat (limited to 'tools/bpf/bpftool/Makefile')
| -rw-r--r-- | tools/bpf/bpftool/Makefile | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index 89d7962a4a44..2759f9cc3289 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -55,16 +55,15 @@ ifneq ($(EXTRA_LDFLAGS),) LDFLAGS += $(EXTRA_LDFLAGS) endif -LIBS = $(LIBBPF) -lelf -lz -lcap - INSTALL ?= install RM ?= rm -f CLANG ?= clang FEATURE_USER = .bpftool -FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib \ +FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \ + clang-bpf-global-var +FEATURE_DISPLAY = libbfd disassembler-four-args zlib libcap \ clang-bpf-global-var -FEATURE_DISPLAY = libbfd disassembler-four-args zlib clang-bpf-global-var check_feat := 1 NON_CHECK_FEAT_TARGETS := clean uninstall doc doc-clean doc-install doc-uninstall @@ -90,6 +89,12 @@ ifeq ($(feature-reallocarray), 0) CFLAGS += -DCOMPAT_NEED_REALLOCARRAY endif +LIBS = $(LIBBPF) -lelf -lz +ifeq ($(feature-libcap), 1) +CFLAGS += -DUSE_LIBCAP +LIBS += -lcap +endif + include $(wildcard $(OUTPUT)*.d) all: $(OUTPUT)bpftool |