varun-r-mallya/pylibbpf
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update CMakeLists.txt

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varun-r-mallya
2025-09-21 01:36:33 +05:30
parent 5273b616ca
commit 06eec0a9cd
1 changed files with 15 additions and 30 deletions
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45
CMakeLists.txt
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@ -4,10 +4,9 @@ project(pylibbpf)
add_subdirectory(pybind11) add_subdirectory(pybind11)
pybind11_add_module(pylibbpf src/main.cpp) pybind11_add_module(pylibbpf src/main.cpp)
# Build vendored libbpf
include(ExternalProject) include(ExternalProject)
ExternalProject_Add( ExternalProject_Add(
libbpf libbpf_build
PREFIX libbpf PREFIX libbpf
SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libbpf/src SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libbpf/src
CONFIGURE_COMMAND "" CONFIGURE_COMMAND ""
@ -19,36 +18,22 @@ ExternalProject_Add(
INSTALL_COMMAND "" INSTALL_COMMAND ""
STEP_TARGETS build) STEP_TARGETS build)
if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86_64") # Define a static library target pointing to the built libbpf.a
set(ARCH "x86") add_library(libbpf_static STATIC IMPORTED GLOBAL)
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "arm")
set(ARCH "arm")
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "aarch64")
set(ARCH "arm64")
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "ppc64le")
set(ARCH "powerpc")
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "mips")
set(ARCH "mips")
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "riscv64")
set(ARCH "riscv")
elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "loongarch64")
set(ARCH "loongarch")
endif()
set(LIBBPF_INCLUDE_DIRS set(LIBBPF_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/libbpf/include)
${CMAKE_CURRENT_BINARY_DIR}/libbpf
${CMAKE_CURRENT_SOURCE_DIR}/libbpf/include
${CMAKE_CURRENT_BINARY_DIR}/libbpf/usr/include)
set(LIBBPF_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/libbpf/libbpf.a)
# EXAMPLE_VERSION_INFO is defined by setup.py and passed into the C++ code as a set_target_properties(
# define (VERSION_INFO) here. libbpf_static
PROPERTIES IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/libbpf/libbpf.a"
INTERFACE_INCLUDE_DIRECTORIES "${LIBBPF_INCLUDE_DIRS}")
# Ensure build order: external project builds before linking
add_dependencies(libbpf_static libbpf_build)
add_dependencies(pylibbpf libbpf_static)
# Version info
target_compile_definitions(pylibbpf target_compile_definitions(pylibbpf
PRIVATE VERSION_INFO=${PYLIBBPF_VERSION_INFO}) PRIVATE VERSION_INFO=${PYLIBBPF_VERSION_INFO})
# ensure build order # Link the actual library target
add_dependencies(pylibbpf libbpf) target_link_libraries(pylibbpf PRIVATE libbpf_static)
# headers + linking
target_include_directories(pylibbpf PRIVATE ${LIBBPF_INCLUDE_DIRS})
target_link_libraries(pylibbpf PRIVATE ${LIBBPF_LIBRARIES})