Add some more options to the BCC build

Signed-off-by: Zain Asgar <zasgar@pixielabs.ai>

Author: zasgar

CMakeLists.txt

@@ -84,6 +84,11 @@ include(GNUInstallDirs)
 include(CheckCXXCompilerFlag)
 include(cmake/FindCompilerFlag.cmake)
 
+
+option(ENABLE_INTROSPECTIONS "Enable introspection tool" OFF)
+option(ENABLE_LUA "Enable lua bindings" OFF)
+option(ENABLE_PYTHON "Enable python binding" OFF)
+option(ENABLE_SHARED "Enable shared libraries" OFF)
 option(ENABLE_LLVM_NATIVECODEGEN "Enable use of llvm nativecodegen module (needed by rw-engine)" ON)
 option(ENABLE_RTTI "Enable compiling with real time type information" OFF)
 option(ENABLE_LLVM_SHARED "Enable linking LLVM as a shared library" OFF)
@@ -179,16 +184,23 @@ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall ${CXX_ISYSTEM_DIRS}")
 
 add_subdirectory(src)
-add_subdirectory(introspection)
+
+if(ENABLE_INTROSPECTIONS)
+  add_subdirectory(introspection)
+endif(ENABLE_INTROSPECTIONS)
+
 if(ENABLE_CLANG_JIT)
-if(ENABLE_EXAMPLES)
-add_subdirectory(examples)
-endif(ENABLE_EXAMPLES)
-if(ENABLE_MAN)
-add_subdirectory(man)
-endif(ENABLE_MAN)
-if(ENABLE_TESTS)
-add_subdirectory(tests)
-endif(ENABLE_TESTS)
-add_subdirectory(tools)
+  if(ENABLE_EXAMPLES)
+    add_subdirectory(examples)
+  endif(ENABLE_EXAMPLES)
+
+  if(ENABLE_MAN)
+    add_subdirectory(man)
+  endif(ENABLE_MAN)
+
+  if(ENABLE_TESTS)
+    add_subdirectory(tests)
+  endif(ENABLE_TESTS)
+
+  add_subdirectory(tools)
 endif(ENABLE_CLANG_JIT)

src/CMakeLists.txt

@@ -4,18 +4,24 @@
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
 
 if (ENABLE_RTTI)
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti")
 else()
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
 endif()
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 if(NOT PYTHON_ONLY)
-add_subdirectory(cc)
+  add_subdirectory(cc)
 endif()
+
 if(ENABLE_CLANG_JIT)
-add_subdirectory(python)
-add_subdirectory(lua)
+  if(ENABLE_PYTHON)
+    add_subdirectory(python)
+  endif(ENABLE_PYTHON)
+
+  if(ENABLE_LUA)
+    add_subdirectory(lua)
+  endif(ENABLE_LUA)
 endif()

src/cc/CMakeLists.txt

@@ -3,15 +3,15 @@
 
 include_directories(${CMAKE_CURRENT_BINARY_DIR})
 include_directories(${CMAKE_CURRENT_SOURCE_DIR})
-# to be removed
-include_directories(${CMAKE_CURRENT_BINARY_DIR}/frontends/b)
-include_directories(${CMAKE_CURRENT_SOURCE_DIR}/frontends/b)
+
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/frontends/clang)
 include_directories(${LLVM_INCLUDE_DIRS})
 include_directories(${LIBELF_INCLUDE_DIRS})
+
 if (LIBDEBUGINFOD_FOUND)
   include_directories(${LIBDEBUGINFOD_INCLUDE_DIRS})
 endif (LIBDEBUGINFOD_FOUND)
+
 # todo: if check for kernel version
 if (CMAKE_USE_LIBBPF_PACKAGE AND LIBBPF_FOUND)
   include_directories(${LIBBPF_INCLUDE_DIRS})
@@ -38,8 +38,6 @@ endif()
 string(REGEX MATCH "^([0-9]+).*" _ ${LLVM_PACKAGE_VERSION})
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DLLVM_MAJOR_VERSION=${CMAKE_MATCH_1}")
 
-include(static_libstdc++)
-
 if(LIBBPF_INCLUDE_DIR)
   # Add user libbpf include and notify compilation
   # that we are using external libbpf. It's checked
@@ -82,11 +80,13 @@ if(LIBBPF_FOUND)
 endif()
 
 if(ENABLE_CLANG_JIT)
-add_library(bcc-shared SHARED
-  link_all.cc ${bcc_common_sources} ${bcc_table_sources} ${bcc_sym_sources}
-  ${bcc_util_sources})
-set_target_properties(bcc-shared PROPERTIES VERSION ${REVISION_LAST} SOVERSION 0)
-set_target_properties(bcc-shared PROPERTIES OUTPUT_NAME bcc)
+  if(ENABLE_SHARED)
+    add_library(bcc-shared SHARED
+      link_all.cc ${bcc_common_sources} ${bcc_table_sources} ${bcc_sym_sources}
+      ${bcc_util_sources})
+    set_target_properties(bcc-shared PROPERTIES VERSION ${REVISION_LAST} SOVERSION 0)
+    set_target_properties(bcc-shared PROPERTIES OUTPUT_NAME bcc)
+  endif(ENABLE_SHARED)
 
 if(ENABLE_USDT)
   add_definitions(-DEXPORT_USDT)
@@ -106,16 +106,19 @@ set(bpf_sources libbpf.c perf_reader.c ${libbpf_sources} ${bcc_sym_sources} ${bc
 add_library(bpf-static STATIC ${bpf_sources})
 set_target_properties(bpf-static PROPERTIES OUTPUT_NAME bcc_bpf)
 target_link_libraries(bpf-static elf z)
-add_library(bpf-shared SHARED ${bpf_sources})
-set_target_properties(bpf-shared PROPERTIES VERSION ${REVISION_LAST} SOVERSION 0)
-set_target_properties(bpf-shared PROPERTIES OUTPUT_NAME bcc_bpf)
-target_link_libraries(bpf-shared elf z)
-if(LIBDEBUGINFOD_FOUND)
-  target_link_libraries(bpf-shared ${LIBDEBUGINFOD_LIBRARIES})
-endif(LIBDEBUGINFOD_FOUND)
-if(CMAKE_USE_LIBBPF_PACKAGE AND LIBBPF_FOUND)
-  target_link_libraries(bpf-shared ${LIBBPF_LIBRARIES})
-endif()
+
+if(ENABLE_SHARED)
+  add_library(bpf-shared SHARED ${bpf_sources})
+  set_target_properties(bpf-shared PROPERTIES VERSION ${REVISION_LAST} SOVERSION 0)
+  set_target_properties(bpf-shared PROPERTIES OUTPUT_NAME bcc_bpf)
+  target_link_libraries(bpf-shared elf z)
+  if(LIBDEBUGINFOD_FOUND)
+    target_link_libraries(bpf-shared ${LIBDEBUGINFOD_LIBRARIES})
+  endif(LIBDEBUGINFOD_FOUND)
+  if(CMAKE_USE_LIBBPF_PACKAGE AND LIBBPF_FOUND)
+    target_link_libraries(bpf-shared ${LIBBPF_LIBRARIES})
+  endif()
+endif(ENABLE_SHARED)
 
 include(clang_libs)
 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${clang_lib_exclude_flags}")
@@ -161,15 +164,25 @@ endif()
 add_subdirectory(frontends)
 
 # Link against LLVM libraries
-target_link_libraries(bcc-shared ${bcc_common_libs_for_s})
+if(ENABLE_SHARED)
+  target_link_libraries(bcc-shared ${bcc_common_libs_for_s})
+endif(ENABLE_SHARED)
+
 target_link_libraries(bcc-static ${bcc_common_libs_for_a} bcc-loader-static)
 set(bcc-lua-static ${bcc-lua-static} ${bcc_common_libs_for_lua})
 
-install(TARGETS bcc-shared bcc-static bcc-loader-static bpf-static LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+install(TARGETS bcc-static bcc-loader-static bpf-static LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
 install(FILES ${bcc_table_headers} DESTINATION include/bcc)
 install(FILES ${bcc_api_headers} DESTINATION include/bcc)
 install(DIRECTORY ${libbpf_uapi} DESTINATION include/bcc/compat/linux FILES_MATCHING PATTERN "*.h")
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libbcc.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
+if(ENABLE_SHARED)
+  install(TARGETS bcc-shared LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif(ENABLE_SHARED)
+
 endif(ENABLE_CLANG_JIT)
 install(FILES ${bcc_common_headers} DESTINATION include/bcc)
-install(TARGETS bpf-shared LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+if(ENABLE_SHARED)
+  install(TARGETS bpf-shared LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
+endif(ENABLE_SHARED)