pirama created this revision.
Herald added a subscriber: mgorny.
The current libclang.so exports only the symbols required for the stable
C api. This is opposed to libLLVM.so, which exports all the symbols
from the LLVM libraries, including those from the C++ API. This patch
adds libclang-cxx.so that is similar to libLLVM.so and exports all
symbols from the clang libraries. The motivation for this library is to
be used by Clang tools that use Clang's C++ api. They no longer need to
link against the individual static libraries.
Repository:
rC Clang
https://reviews.llvm.org/D50359
Files:
CMakeLists.txt
tools/CMakeLists.txt
tools/libclang-cxx/CMakeLists.txt
Index: tools/libclang-cxx/CMakeLists.txt
===================================================================
--- /dev/null
+++ tools/libclang-cxx/CMakeLists.txt
@@ -0,0 +1,74 @@
+set(LIBS
+ clangBasic
+ clangCodeGen
+ clangDriver
+ clangFrontend
+ clangFrontendTool
+)
+
+if (CLANG_ENABLE_ARCMT)
+ list(APPEND LIBS clangARCMigrate)
+endif ()
+
+if (TARGET clangTidyPlugin)
+ add_definitions(-DCLANG_TOOL_EXTRA_BUILD)
+ list(APPEND LIBS clangTidyPlugin)
+ list(APPEND LIBS clangIncludeFixerPlugin)
+ if(LLVM_ENABLE_MODULES)
+ list(APPEND LLVM_COMPILE_FLAGS "-fmodules-ignore-macro=CLANG_TOOL_EXTRA_BUILD")
+ endif()
+endif ()
+
+find_library(DL_LIBRARY_PATH dl)
+if (DL_LIBRARY_PATH)
+ list(APPEND LIBS dl)
+endif()
+
+if( LLVM_ENABLE_PIC )
+ set(ENABLE_SHARED SHARED)
+endif()
+
+if(NOT LLVM_ENABLE_PIC AND NOT WIN32)
+ set(ENABLE_STATIC STATIC)
+endif()
+
+if(WIN32)
+ set(output_name "libclang_cxx")
+else()
+ set(output_name "clang_cxx")
+endif()
+
+set(LIBS -Wl,--whole-archive ${LIBS} -Wl,--no-whole-archive)
+
+add_clang_library(libclang_cxx ${ENABLE_SHARED} ${ENABLE_STATIC}
+ OUTPUT_NAME ${output_name}
+
+ LINK_LIBS
+ ${LIBS}
+ )
+
+if(ENABLE_SHARED)
+ if(WIN32)
+ set_target_properties(libclang_cxx
+ PROPERTIES
+ VERSION ${LIBCLANG_LIBRARY_VERSION}
+ DEFINE_SYMBOL _CINDEX_LIB_)
+ elseif(APPLE)
+ set(LIBCLANG_CXX_LINK_FLAGS " -Wl,-compatibility_version -Wl,1")
+ set(LIBCLANG_CXX_LINK_FLAGS "${LIBCLANG_CXX_LINK_FLAGS} -Wl,-current_version -Wl,${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}")
+
+ set_property(TARGET libclang_cxx APPEND_STRING PROPERTY
+ LINK_FLAGS ${LIBCLANG_CXX_LINK_FLAGS})
+ else()
+ set_target_properties(libclang_cxx
+ PROPERTIES
+ VERSION ${LIBCLANG_LIBRARY_VERSION}
+ DEFINE_SYMBOL _CINDEX_LIB_)
+ # FIXME: _CINDEX_LIB_ affects dllexport/dllimport on Win32.
+ if(LLVM_ENABLE_MODULES AND NOT WIN32)
+ target_compile_options(libclang_cxx PRIVATE
+ "-fmodules-ignore-macro=_CINDEX_LIB_"
+ )
+ endif()
+ endif()
+endif()
Index: tools/CMakeLists.txt
===================================================================
--- tools/CMakeLists.txt
+++ tools/CMakeLists.txt
@@ -35,3 +35,4 @@
# libclang may require clang-tidy in clang-tools-extra.
add_clang_subdirectory(libclang)
+add_clang_subdirectory(libclang-cxx)
Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt
+++ CMakeLists.txt
@@ -431,7 +431,7 @@
"Major version number that will be appended to the clang executable name")
set(LIBCLANG_LIBRARY_VERSION
"${CLANG_VERSION_MAJOR}" CACHE STRING
- "Major version number that will be appended to the libclang library")
+ "Major version number that will be appended to the libclang, libclang_cxx libraries")
mark_as_advanced(CLANG_EXECUTABLE_VERSION LIBCLANG_LIBRARY_VERSION)
option(CLANG_INCLUDE_TESTS
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