163 lines
6.0 KiB
CMake
163 lines
6.0 KiB
CMake
# Copyright (c) PLUMgrid, Inc.
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# Licensed under the Apache License, Version 2.0 (the "License")
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cmake_minimum_required(VERSION 2.8.7)
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if (${CMAKE_VERSION} VERSION_EQUAL 3.12.0 OR ${CMAKE_VERSION} VERSION_GREATER 3.12.0)
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cmake_policy(SET CMP0074 NEW)
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endif()
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project(bcc)
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
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set(CMAKE_INSTALL_PREFIX "/usr" CACHE PATH "path to install" FORCE)
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endif()
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enable_testing()
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# populate submodules (libbpf)
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if(NOT CMAKE_USE_LIBBPF_PACKAGE)
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if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/src/cc/libbpf/src)
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execute_process(COMMAND git submodule update --init --recursive
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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RESULT_VARIABLE UPDATE_RESULT)
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if(UPDATE_RESULT AND NOT UPDATE_RESULT EQUAL 0)
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message(WARNING "Failed to update submodule libbpf")
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endif()
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else()
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execute_process(COMMAND git diff --shortstat ${CMAKE_CURRENT_SOURCE_DIR}/src/cc/libbpf/
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OUTPUT_VARIABLE DIFF_STATUS)
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if("${DIFF_STATUS}" STREQUAL "")
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execute_process(COMMAND git submodule update --init --recursive
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WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
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RESULT_VARIABLE UPDATE_RESULT)
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if(UPDATE_RESULT AND NOT UPDATE_RESULT EQUAL 0)
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message(WARNING "Failed to update submodule libbpf")
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endif()
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else()
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message(WARNING "submodule libbpf dirty, so no sync")
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endif()
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endif()
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endif()
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# It's possible to use other kernel headers with
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# KERNEL_INCLUDE_DIRS build variable, like:
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# $ cd <kernel-dir>
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# $ make INSTALL_HDR_PATH=/tmp/headers headers_install
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# $ cd <bcc-dir>
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# $ cmake -DKERNEL_INCLUDE_DIRS=/tmp/headers/include/ ...
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include_directories(${KERNEL_INCLUDE_DIRS})
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option(ENABLE_NO_PIE "Build bcc-lua without PIE" ON)
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include(cmake/GetGitRevisionDescription.cmake)
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include(cmake/version.cmake)
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include(CMakeDependentOption)
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include(GNUInstallDirs)
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include(CheckCXXCompilerFlag)
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include(cmake/FindCompilerFlag.cmake)
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option(ENABLE_LLVM_NATIVECODEGEN "Enable use of llvm nativecodegen module (needed by rw-engine)" ON)
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option(ENABLE_RTTI "Enable compiling with real time type information" OFF)
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option(ENABLE_LLVM_SHARED "Enable linking LLVM as a shared library" OFF)
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option(ENABLE_CLANG_JIT "Enable Loading BPF through Clang Frontend" ON)
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option(ENABLE_USDT "Enable User-level Statically Defined Tracing" ON)
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option(ENABLE_EXAMPLES "Build examples" ON)
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option(ENABLE_MAN "Build man pages" ON)
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option(ENABLE_TESTS "Build tests" ON)
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option(RUN_LUA_TESTS "Run lua tests" ON)
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CMAKE_DEPENDENT_OPTION(ENABLE_CPP_API "Enable C++ API" ON "ENABLE_USDT" OFF)
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set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
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if (CMAKE_USE_LIBBPF_PACKAGE)
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find_package(LibBpf)
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endif()
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if(NOT PYTHON_ONLY)
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find_package(LLVM REQUIRED CONFIG)
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message(STATUS "Found LLVM: ${LLVM_INCLUDE_DIRS} ${LLVM_PACKAGE_VERSION} (Use LLVM_ROOT envronment variable for another version of LLVM)")
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if(ENABLE_CLANG_JIT)
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find_package(BISON)
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find_package(FLEX)
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find_package(LibElf REQUIRED)
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find_package(LibDebuginfod)
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if(CLANG_DIR)
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set(CMAKE_FIND_ROOT_PATH "${CLANG_DIR}")
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include_directories("${CLANG_DIR}/include")
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endif()
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# clang is linked as a library, but the library path searching is
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# primitively supported, unlike libLLVM
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set(CLANG_SEARCH "/opt/local/llvm/lib;/usr/lib/llvm-3.7/lib;${LLVM_LIBRARY_DIRS}")
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find_library(libclangAnalysis NAMES clangAnalysis clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangAST NAMES clangAST clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangBasic NAMES clangBasic clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangCodeGen NAMES clangCodeGen clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangDriver NAMES clangDriver clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangEdit NAMES clangEdit clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangFrontend NAMES clangFrontend clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangLex NAMES clangLex clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangParse NAMES clangParse clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangRewrite NAMES clangRewrite clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangSema NAMES clangSema clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangSerialization NAMES clangSerialization clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclangASTMatchers NAMES clangASTMatchers clang-cpp HINTS ${CLANG_SEARCH})
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find_library(libclang-shared libclang-cpp.so HINTS ${CLANG_SEARCH})
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if(libclangBasic STREQUAL "libclangBasic-NOTFOUND")
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message(FATAL_ERROR "Unable to find clang libraries")
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endif()
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FOREACH(DIR ${LLVM_INCLUDE_DIRS})
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include_directories("${DIR}/../tools/clang/include")
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ENDFOREACH()
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endif(ENABLE_CLANG_JIT)
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# Set to a string path if system places kernel lib directory in
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# non-default location.
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if(NOT DEFINED BCC_KERNEL_MODULES_DIR)
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set(BCC_KERNEL_MODULES_DIR "/lib/modules")
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endif()
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if(NOT DEFINED BCC_PROG_TAG_DIR)
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set(BCC_PROG_TAG_DIR "/var/tmp/bcc")
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endif()
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# As reported in issue #735, GCC 6 has some behavioral problems when
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# dealing with -isystem. Hence, skip the warning optimization
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# altogether on that compiler.
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option(USINGISYSTEM "using -isystem" ON)
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execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
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if (USINGISYSTEM AND GCC_VERSION VERSION_LESS 6.0)
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# iterate over all available directories in LLVM_INCLUDE_DIRS to
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# generate a correctly tokenized list of parameters
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foreach(ONE_LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIRS})
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set(CXX_ISYSTEM_DIRS "${CXX_ISYSTEM_DIRS} -isystem ${ONE_LLVM_INCLUDE_DIR}")
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endforeach()
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endif()
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_CXX_STANDARD 14)
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endif(NOT PYTHON_ONLY)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall ${CXX_ISYSTEM_DIRS}")
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add_subdirectory(src)
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add_subdirectory(introspection)
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if(ENABLE_CLANG_JIT)
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if(ENABLE_EXAMPLES)
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add_subdirectory(examples)
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endif(ENABLE_EXAMPLES)
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if(ENABLE_MAN)
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add_subdirectory(man)
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endif(ENABLE_MAN)
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if(ENABLE_TESTS)
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add_subdirectory(tests)
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endif(ENABLE_TESTS)
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add_subdirectory(tools)
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endif(ENABLE_CLANG_JIT)
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