diff options
Diffstat (limited to 'tools/llvm-shlib')
-rw-r--r-- | tools/llvm-shlib/CMakeLists.txt | 100 | ||||
-rw-r--r-- | tools/llvm-shlib/libllvm.cpp | 13 |
2 files changed, 113 insertions, 0 deletions
diff --git a/tools/llvm-shlib/CMakeLists.txt b/tools/llvm-shlib/CMakeLists.txt new file mode 100644 index 0000000..100c184 --- /dev/null +++ b/tools/llvm-shlib/CMakeLists.txt @@ -0,0 +1,100 @@ +# This tool creates a shared library from the LLVM libraries. Generating this +# library is enabled by setting LLVM_BUILD_LLVM_DYLIB=yes on the CMake +# commandline. By default the shared library only exports the LLVM C API. + + +# You can configure which libraries from LLVM you want to include in the shared +# library by setting LLVM_DYLIB_COMPONENTS to a semi-colon delimited list of +# LLVM components. All compoenent names handled by llvm-config are valid. + +if(NOT DEFINED LLVM_DYLIB_COMPONENTS) + set(LLVM_DYLIB_COMPONENTS + ${LLVM_TARGETS_TO_BUILD} + Analysis + BitReader + BitWriter + CodeGen + Core + ExecutionEngine + IPA + IPO + IRReader + InstCombine + Instrumentation + Interpreter + Linker + MCDisassembler + MCJIT + ObjCARCOpts + Object + ScalarOpts + Support + Target + TransformUtils + Vectorize + native + ) +endif() + +add_definitions( -DLLVM_VERSION_INFO=\"${PACKAGE_VERSION}\" ) + +set(SOURCES + libllvm.cpp + ) + +if(NOT DEFINED LLVM_EXPORTED_SYMBOL_FILE) + + if( WIN32 AND NOT CYGWIN ) + message(FATAL_ERROR "Auto-generation not implemented for Win32 without GNU utils. Please specify LLVM_EXPORTED_SYMBOL_FILE.") + endif() + + # To get the export list for a single llvm library: + # nm ${LIB_PATH} | awk "/T _LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_PATH}.exports + + set(LLVM_EXPORTED_SYMBOL_FILE ${CMAKE_BINARY_DIR}/libllvm.exports) + + llvm_map_components_to_libnames(LIB_NAMES ${LLVM_DYLIB_COMPONENTS}) + + foreach (lib ${LIB_NAMES}) + + set(LIB_DIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib) + set(LIB_NAME ${LIB_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}${lib}) + set(LIB_PATH ${LIB_NAME}${CMAKE_STATIC_LIBRARY_SUFFIX}) + set(LIB_EXPORTS_PATH ${LIB_NAME}.exports) + + list(APPEND LLVM_DYLIB_REQUIRED_EXPORTS ${LIB_EXPORTS_PATH}) + + add_custom_command(OUTPUT ${LIB_EXPORTS_PATH} + COMMAND nm ${LIB_PATH} | awk "/T _LLVM/ || /T LLVM/ { print $3 }" | sort -u | sed -e "s/^_//g" > ${LIB_EXPORTS_PATH} + WORKING_DIRECTORY ${LIB_DIR} + DEPENDS ${lib} + COMMENT "Generating Export list for ${lib}..." + VERBATIM ) + endforeach () + + add_custom_command(OUTPUT ${LLVM_EXPORTED_SYMBOL_FILE} + COMMAND cat ${LLVM_DYLIB_REQUIRED_EXPORTS} > ${LLVM_EXPORTED_SYMBOL_FILE} + WORKING_DIRECTORY ${LIB_DIR} + DEPENDS ${LLVM_DYLIB_REQUIRED_EXPORTS} + COMMENT "Generating combined export list...") + +endif() + +add_llvm_library(LLVM SHARED ${SOURCES}) + +if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux") # FIXME: It should be "GNU ld for elf" + # GNU ld doesn't resolve symbols in the version script. + list(REMOVE_DUPLICATES LIB_NAMES) + set(LIB_NAMES -Wl,--whole-archive ${LIB_NAMES} -Wl,--no-whole-archive) +endif() + +target_link_libraries(LLVM ${cmake_2_8_12_PRIVATE} ${LIB_NAMES}) + +add_dependencies(LLVM ${LLVM_EXPORTED_SYMBOL_FILE}) + +if (APPLE) + set_property(TARGET LLVM APPEND_STRING PROPERTY + LINK_FLAGS + " -compatibility_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR} -current_version ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}") +endif() + diff --git a/tools/llvm-shlib/libllvm.cpp b/tools/llvm-shlib/libllvm.cpp new file mode 100644 index 0000000..40b4f66 --- /dev/null +++ b/tools/llvm-shlib/libllvm.cpp @@ -0,0 +1,13 @@ +//===-libllvm.cpp - LLVM Shared Library -----------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file is empty and serves only the purpose of making CMake happy because +// you can't define a target with no sources. +// +//===----------------------------------------------------------------------===// |