Link to libclang

CMakeLists.txt

 cmake_minimum_required(VERSION 2.8.12)
 project(bpftrace)
 
+set(STATIC_LINKING OFF CACHE BOOL "Build bpftrace as a statically linked executable")
+
 add_compile_options("-std=c++14")
 add_compile_options("-Wno-format-security")
 #add_compile_options("-Wall")
@@ -39,6 +41,13 @@ else()
     )
 endif()
 
+if (STATIC_LINKING)
+  set(CMAKE_EXE_LINKER_FLAGS "-static")
+  set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
+  set(CMAKE_LINK_SEARCH_START_STATIC TRUE)
+  set(CMAKE_LINK_SEARCH_END_STATIC TRUE)
+endif()
+
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 find_package(LibElf REQUIRED)
 include_directories(${LIBELF_INCLUDE_DIRS})
@@ -51,11 +60,12 @@ add_flex_bison_dependency(flex_lexer bison_parser)
 add_library(parser ${BISON_bison_parser_OUTPUTS} ${FLEX_flex_lexer_OUTPUTS})
 target_include_directories(parser PUBLIC src src/ast ${CMAKE_BINARY_DIR})
 
-find_package(LLVM REQUIRED CONFIG)
+find_package(LLVM REQUIRED)
 include_directories(${LLVM_INCLUDE_DIRS})
 add_definitions(${LLVM_DEFINITIONS})
 
-set(STATIC_LINKING OFF CACHE BOOL "Build bpftrace as a statically linked executable")
+find_package(Clang REQUIRED)
+include_directories(${CLANG_INCLUDE_DIRS})
 
 add_subdirectory(src/arch)
 add_subdirectory(src/ast)

src/CMakeLists.txt

-if (STATIC_LINKING)
-  set(CMAKE_EXE_LINKER_FLAGS "-static")
-endif()
-
 add_executable(bpftrace
   attached_probe.cpp
   bpftrace.cpp
@@ -16,10 +12,6 @@ add_executable(bpftrace
 
 target_link_libraries(bpftrace arch ast parser)
 
-llvm_map_components_to_libnames(llvm_libs bpfcodegen ipo irreader mcjit orcjit)
-target_link_libraries(bpftrace ${llvm_libs})
-
-add_dependencies(bpftrace bcc-build)
 ExternalProject_Get_Property(bcc source_dir binary_dir)
 target_include_directories(bpftrace PUBLIC ${source_dir}/src/cc)
 target_link_libraries(bpftrace ${binary_dir}/src/cc/libbpf.a)

src/ast/CMakeLists.txt

@@ -11,6 +11,30 @@ target_include_directories(ast PUBLIC ${CMAKE_SOURCE_DIR}/src/ast)
 target_include_directories(ast PUBLIC ${CMAKE_BINARY_DIR})
 target_link_libraries(ast arch)
 
-add_dependencies(ast bcc-build)
+add_dependencies(ast bcc-build parser)
 ExternalProject_Get_Property(bcc source_dir)
 target_include_directories(ast PUBLIC ${source_dir}/src/cc)
+
+if (STATIC_LINKING)
+  set(clang_libs
+      libclang.a
+      clangAST
+      clangAnalysis
+      clangBasic
+      clangDriver
+      clangEdit
+      clangFormat
+      clangFrontend
+      clangIndex
+      clangLex
+      clangParse
+      clangRewrite
+      clangSema
+      clangSerialization
+      clangToolingCore)
+  llvm_map_components_to_libnames(llvm_libs bpfcodegen ipo irreader mcjit orcjit ${LLVM_TARGETS_TO_BUILD})
+  target_link_libraries(ast ${clang_libs})
+  target_link_libraries(ast ${llvm_libs})
+else()
+  target_link_libraries(ast LLVM libclang)
+endif()

tests/CMakeLists.txt

-if (STATIC_LINKING)
-  set(CMAKE_EXE_LINKER_FLAGS "-static")
-endif()
-
 add_compile_options("-Wno-undef")
 add_compile_options("-Wno-switch-default")
 add_compile_options("-Wno-switch-enum")
@@ -21,19 +17,10 @@ add_executable(bpftrace_test
   ${CMAKE_SOURCE_DIR}/src/mapkey.cpp
   ${CMAKE_SOURCE_DIR}/src/printf.cpp
   ${CMAKE_SOURCE_DIR}/src/types.cpp
-  ${CMAKE_SOURCE_DIR}/src/ast/ast.cpp
-  ${CMAKE_SOURCE_DIR}/src/ast/codegen_llvm.cpp
-  ${CMAKE_SOURCE_DIR}/src/ast/irbuilderbpf.cpp
-  ${CMAKE_SOURCE_DIR}/src/ast/printer.cpp
-  ${CMAKE_SOURCE_DIR}/src/ast/semantic_analyser.cpp
 )
 
-target_link_libraries(bpftrace_test arch parser)
-
-llvm_map_components_to_libnames(llvm_libs bpfcodegen ipo irreader mcjit)
-target_link_libraries(bpftrace_test ${llvm_libs})
+target_link_libraries(bpftrace_test arch ast parser)
 
-add_dependencies(bpftrace_test bcc-build)
 ExternalProject_Get_Property(bcc source_dir binary_dir)
 target_include_directories(bpftrace_test PUBLIC ${source_dir}/src/cc)
 target_link_libraries(bpftrace_test ${binary_dir}/src/cc/libbpf.a)