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if (NOT DEFINED ENABLE_EBPF OR ENABLE_EBPF)
find_package(LIBBPF)
endif()
module_switch(ENABLE_EBPF "Enable ebpf module (requires ebpf toolchain)" LIBBPF_FOUND)
if (NOT ENABLE_EBPF)
return()
endif()
add_custom_command(OUTPUT vmlinux.h
COMMAND ${BPFTOOL} btf dump file /sys/kernel/btf/vmlinux format c >vmlinux.h)
add_custom_command(OUTPUT random.skel.c
COMMAND ${BPFTOOL} gen skeleton random.kern.o > random.skel.c
DEPENDS random.kern.o)
add_custom_command(OUTPUT random.kern.o
COMMAND ${BPF_CC} ${BPF_CFLAGS} -c ${CMAKE_CURRENT_SOURCE_DIR}/random.kern.c -o random.kern.o
DEPENDS random.kern.c vmlinux.h)
add_custom_target(generate_ebpf_skeletons DEPENDS "random.skel.c")
set(EBPF_SOURCES
ebpf-parser.h
ebpf-reuseport.h
ebpf-reuseport.c
ebpf-plugin.c
ebpf-parser.c
)
add_module(
TARGET ebpf
GRAMMAR ebpf-grammar
INCLUDES ${PROJECT_SOURCE_DIR}
SOURCES ${EBPF_SOURCES}
DEPENDS ${LIBBPF_LIBRARIES}
)
add_dependencies(ebpf generate_ebpf_skeletons)
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