| # Copyright (c) PLUMgrid, Inc. |
| # Licensed under the Apache License, Version 2.0 (the "License") |
| cmake_minimum_required(VERSION 2.8.7) |
| |
| project(bcc) |
| if(NOT CMAKE_BUILD_TYPE) |
| set(CMAKE_BUILD_TYPE Release) |
| endif() |
| |
| enable_testing() |
| |
| include(cmake/GetGitRevisionDescription.cmake) |
| include(cmake/version.cmake) |
| include(CMakeDependentOption) |
| include(GNUInstallDirs) |
| include(CheckCXXCompilerFlag) |
| include(cmake/FindCompilerFlag.cmake) |
| |
| option(ENABLE_CLANG_JIT "Enable Loading BPF through Clang Frontend" ON) |
| option(ENABLE_USDT "Enable User-level Statically Defined Tracing" ON) |
| CMAKE_DEPENDENT_OPTION(ENABLE_CPP_API "Enable C++ API" ON "ENABLE_USDT" OFF) |
| |
| set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake) |
| |
| if(NOT PYTHON_ONLY AND ENABLE_CLANG_JIT) |
| find_package(BISON) |
| find_package(FLEX) |
| find_package(LLVM REQUIRED CONFIG) |
| message(STATUS "Found LLVM: ${LLVM_INCLUDE_DIRS} ${LLVM_PACKAGE_VERSION}") |
| find_package(LibElf REQUIRED) |
| |
| # clang is linked as a library, but the library path searching is |
| # primitively supported, unlike libLLVM |
| set(CLANG_SEARCH "/opt/local/llvm/lib;/usr/lib/llvm-3.7/lib;${LLVM_LIBRARY_DIRS}") |
| find_library(libclangAnalysis NAMES clangAnalysis HINTS ${CLANG_SEARCH}) |
| find_library(libclangAST NAMES clangAST HINTS ${CLANG_SEARCH}) |
| find_library(libclangBasic NAMES clangBasic HINTS ${CLANG_SEARCH}) |
| find_library(libclangCodeGen NAMES clangCodeGen HINTS ${CLANG_SEARCH}) |
| find_library(libclangDriver NAMES clangDriver HINTS ${CLANG_SEARCH}) |
| find_library(libclangEdit NAMES clangEdit HINTS ${CLANG_SEARCH}) |
| find_library(libclangFrontend NAMES clangFrontend HINTS ${CLANG_SEARCH}) |
| find_library(libclangLex NAMES clangLex HINTS ${CLANG_SEARCH}) |
| find_library(libclangParse NAMES clangParse HINTS ${CLANG_SEARCH}) |
| find_library(libclangRewrite NAMES clangRewrite HINTS ${CLANG_SEARCH}) |
| find_library(libclangSema NAMES clangSema HINTS ${CLANG_SEARCH}) |
| find_library(libclangSerialization NAMES clangSerialization HINTS ${CLANG_SEARCH}) |
| if(libclangBasic STREQUAL "libclangBasic-NOTFOUND") |
| message(FATAL_ERROR "Unable to find clang libraries") |
| endif() |
| FOREACH(DIR ${LLVM_INCLUDE_DIRS}) |
| include_directories("${DIR}/../tools/clang/include") |
| ENDFOREACH() |
| |
| # Set to a string path if system places kernel lib directory in |
| # non-default location. |
| if(NOT DEFINED BCC_KERNEL_MODULES_DIR) |
| set(BCC_KERNEL_MODULES_DIR "/lib/modules") |
| endif() |
| |
| if(NOT DEFINED BCC_PROG_TAG_DIR) |
| set(BCC_PROG_TAG_DIR "/var/tmp/bcc") |
| endif() |
| |
| # As reported in issue #735, GCC 6 has some behavioral problems when |
| # dealing with -isystem. Hence, skip the warning optimization |
| # altogether on that compiler. |
| option(USINGISYSTEM "using -isystem" ON) |
| execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION) |
| if (USINGISYSTEM AND GCC_VERSION VERSION_LESS 6.0) |
| # iterate over all available directories in LLVM_INCLUDE_DIRS to |
| # generate a correctly tokenized list of parameters |
| foreach(ONE_LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIRS}) |
| set(CXX_ISYSTEM_DIRS "${CXX_ISYSTEM_DIRS} -isystem ${ONE_LLVM_INCLUDE_DIR}") |
| endforeach() |
| endif() |
| |
| set(CMAKE_CXX_STANDARD_REQUIRED ON) |
| set(CMAKE_CXX_STANDARD 11) |
| |
| endif(NOT PYTHON_ONLY AND ENABLE_CLANG_JIT) |
| |
| set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall") |
| set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall ${CXX_ISYSTEM_DIRS}") |
| |
| add_subdirectory(src) |
| if(ENABLE_CLANG_JIT) |
| add_subdirectory(examples) |
| add_subdirectory(man) |
| add_subdirectory(tests) |
| add_subdirectory(tools) |
| endif(ENABLE_CLANG_JIT) |