Currently, when cross compiling bpf samples, the host side cannot use arch-specific bpftool to generate vmlinux.h or skeleton. We need to compile the bpftool with the host compiler. Signed-off-by: Pu Lehui <pulehui@xxxxxxxxxx> --- samples/bpf/Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 5002a5b9a7da..fe54a8c8f312 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 +-include tools/scripts/Makefile.include BPF_SAMPLES_PATH ?= $(abspath $(srctree)/$(src)) TOOLS_PATH := $(BPF_SAMPLES_PATH)/../../tools @@ -283,11 +284,10 @@ $(LIBBPF): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OU BPFTOOLDIR := $(TOOLS_PATH)/bpf/bpftool BPFTOOL_OUTPUT := $(abspath $(BPF_SAMPLES_PATH))/bpftool BPFTOOL := $(BPFTOOL_OUTPUT)/bpftool -$(BPFTOOL): $(LIBBPF) $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT) +$(BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile) | $(BPFTOOL_OUTPUT) $(MAKE) -C $(BPFTOOLDIR) srctree=$(BPF_SAMPLES_PATH)/../../ \ - OUTPUT=$(BPFTOOL_OUTPUT)/ \ - LIBBPF_OUTPUT=$(LIBBPF_OUTPUT)/ \ - LIBBPF_DESTDIR=$(LIBBPF_DESTDIR)/ + ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) \ + OUTPUT=$(BPFTOOL_OUTPUT)/ $(LIBBPF_OUTPUT) $(BPFTOOL_OUTPUT): $(call msg,MKDIR,$@) -- 2.25.1
