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- # kbuild trick to avoid linker error. Can be omitted if a module is built.
- obj- := dummy.o
- # List of programs to build
- hostprogs-y := test_verifier test_maps
- hostprogs-y += sock_example
- hostprogs-y += fds_example
- hostprogs-y += sockex1
- hostprogs-y += sockex2
- hostprogs-y += sockex3
- hostprogs-y += tracex1
- hostprogs-y += tracex2
- hostprogs-y += tracex3
- hostprogs-y += tracex4
- hostprogs-y += tracex5
- hostprogs-y += tracex6
- hostprogs-y += trace_output
- hostprogs-y += lathist
- test_verifier-objs := test_verifier.o libbpf.o
- test_maps-objs := test_maps.o libbpf.o
- sock_example-objs := sock_example.o libbpf.o
- fds_example-objs := bpf_load.o libbpf.o fds_example.o
- sockex1-objs := bpf_load.o libbpf.o sockex1_user.o
- sockex2-objs := bpf_load.o libbpf.o sockex2_user.o
- sockex3-objs := bpf_load.o libbpf.o sockex3_user.o
- tracex1-objs := bpf_load.o libbpf.o tracex1_user.o
- tracex2-objs := bpf_load.o libbpf.o tracex2_user.o
- tracex3-objs := bpf_load.o libbpf.o tracex3_user.o
- tracex4-objs := bpf_load.o libbpf.o tracex4_user.o
- tracex5-objs := bpf_load.o libbpf.o tracex5_user.o
- tracex6-objs := bpf_load.o libbpf.o tracex6_user.o
- trace_output-objs := bpf_load.o libbpf.o trace_output_user.o
- lathist-objs := bpf_load.o libbpf.o lathist_user.o
- # Tell kbuild to always build the programs
- always := $(hostprogs-y)
- always += sockex1_kern.o
- always += sockex2_kern.o
- always += sockex3_kern.o
- always += tracex1_kern.o
- always += tracex2_kern.o
- always += tracex3_kern.o
- always += tracex4_kern.o
- always += tracex5_kern.o
- always += tracex6_kern.o
- always += trace_output_kern.o
- always += tcbpf1_kern.o
- always += lathist_kern.o
- HOSTCFLAGS += -I$(objtree)/usr/include
- HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
- HOSTLOADLIBES_fds_example += -lelf
- HOSTLOADLIBES_sockex1 += -lelf
- HOSTLOADLIBES_sockex2 += -lelf
- HOSTLOADLIBES_sockex3 += -lelf
- HOSTLOADLIBES_tracex1 += -lelf
- HOSTLOADLIBES_tracex2 += -lelf
- HOSTLOADLIBES_tracex3 += -lelf
- HOSTLOADLIBES_tracex4 += -lelf -lrt
- HOSTLOADLIBES_tracex5 += -lelf
- HOSTLOADLIBES_tracex6 += -lelf
- HOSTLOADLIBES_trace_output += -lelf -lrt
- HOSTLOADLIBES_lathist += -lelf
- # point this to your LLVM backend with bpf support
- LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc
- # asm/sysreg.h inline assmbly used by it is incompatible with llvm.
- # But, ehere is not easy way to fix it, so just exclude it since it is
- # useless for BPF samples.
- $(obj)/%.o: $(src)/%.c
- clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
- -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
- -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@
- clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
- -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
- -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=asm -o $@.s
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