diff options
| author | Viktor Malik <vmalik@redhat.com> | 2023-10-25 08:19:14 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-10-26 15:32:13 +0200 |
| commit | 37db10bc247d5d0b448babd7ff386f092246e732 (patch) | |
| tree | 571972ac5c029ce9bc18352630b1de1084a751a0 /samples | |
| parent | samples/bpf: Fix passing LDFLAGS to libbpf (diff) | |
| download | linux-37db10bc247d5d0b448babd7ff386f092246e732.tar.xz linux-37db10bc247d5d0b448babd7ff386f092246e732.zip | |
samples/bpf: Allow building with custom bpftool
samples/bpf build its own bpftool boostrap to generate vmlinux.h as well
as some BPF objects. This is a redundant step if bpftool has been
already built, so update samples/bpf/Makefile such that it accepts a
path to bpftool passed via the BPFTOOL variable. The approach is
practically the same as tools/testing/selftests/bpf/Makefile uses.
Signed-off-by: Viktor Malik <vmalik@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/bd746954ac271b02468d8d951ff9f11e655d485b.1698213811.git.vmalik@redhat.com
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/Makefile | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 378b9f3e9321..933f6c3fe6b0 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -260,8 +260,9 @@ $(LIBBPF): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OU BPFTOOLDIR := $(TOOLS_PATH)/bpf/bpftool BPFTOOL_OUTPUT := $(abspath $(BPF_SAMPLES_PATH))/bpftool -BPFTOOL := $(BPFTOOL_OUTPUT)/bootstrap/bpftool -$(BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT) +DEFAULT_BPFTOOL := $(BPFTOOL_OUTPUT)/bootstrap/bpftool +BPFTOOL ?= $(DEFAULT_BPFTOOL) +$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT) $(MAKE) -C $(BPFTOOLDIR) srctree=$(BPF_SAMPLES_PATH)/../../ \ OUTPUT=$(BPFTOOL_OUTPUT)/ bootstrap |