Cmake和鏗鏘工具鏈接錯誤（源樹外）

我想編譯RecursiveASTVisitor example of Clang使用CMake文件。構建項目進展順利，但是將C++可執行文件鏈接失敗並帶有對LLVM和Clang庫的多個未定義引用。我正在構建LLVM/Clang源文件樹之外的示例。Cmake和鏗鏘工具鏈接錯誤（源樹外）

這是我的CMakeLists.txt（我使用FindClang.cmake and FindLLVM.cmake from this project）：

cmake_minimum_required(VERSION 2.8.4) 
project(ifcount) 

set(CMAKE_MODULE_PATH 
    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules 
    ${CMAKE_MODULE_PATH}) 

message(STATUS "CMAKE module path: ${CMAKE_MODULE_PATH}") 

find_path(LibClang_INCLUDE_DIR clang-c/Index.h) 
find_library(LIBCLANG_LIBRARY NAMES clang) 

find_package(LLVM REQUIRED) 
find_package(LLVM REQUIRED CONFIG) 
Find_Package(LLVM REQUIRED) 
include_directories(${LLVM_INCLUDE_DIR}) 
link_directories(${LLVM_LIB_DIR}) 

message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}") 
message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}") 

find_package(Clang REQUIRED) 
find_package(Clang REQUIRED clangTooling libClang) 
include_directories(${CLANG_INCLUDE_DIRS}) 

### 
add_definitions(${LLVM_DEFINITIONS}) 
add_definitions(${Clang_DEFINITIONS}) 

add_definitions("-std=c++11") 
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LLVM_COMPILE_FLAGS} -Wall -fno-rtti -g -std=c++11 -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS") 

set(SOURCE_FILES main.cpp) 
add_executable(ifcount ${SOURCE_FILES}) 

llvm_map_components_to_libnames(llvm_libs support core irreader) 

target_link_libraries(ifcount ${llvm_libs} ${LLVM_LDFLAGS} ${CLANG_LIBS})

這裏是輸出：

-- The C compiler identification is Clang 3.6.0 
-- The CXX compiler identification is Clang 3.6.0 
-- Check for working C compiler: /usr/local/bin/clang 
-- Check for working C compiler: /usr/local/bin/clang -- works 
-- Detecting C compiler ABI info 
-- Detecting C compiler ABI info - done 
-- Check for working CXX compiler: /usr/local/bin/clang++ 
-- Check for working CXX compiler: /usr/local/bin/clang++ -- works 
-- Detecting CXX compiler ABI info 
-- Detecting CXX compiler ABI info - done 
-- CMAKE module path: /home/adel/workspace/ifcount/cmake/modules 
-- LLVM CXX flags: -I/usr/local/include -fPIC -fvisibility-inlines-hidden -Wall -W -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -pedantic -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -std=c++11 -ffunction-sections -fdata-sections -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS 
-- LLVM LD flags: -L/usr/local/lib-lrt -ldl -ltinfo -lpthread -lz 
-- LLVM core libs: -lLLVMLTO -lLLVMObjCARCOpts -lLLVMLinker -lLLVMipo -lLLVMVectorize -lLLVMBitWriter -lLLVMIRReader -lLLVMAsmParser -lLLVMXCoreDisassembler -lLLVMXCoreCodeGen -lLLVMXCoreDesc -lLLVMXCoreInfo -lLLVMXCoreAsmPrinter -lLLVMSystemZDisassembler -lLLVMSystemZCodeGen -lLLVMSystemZAsmParser -lLLVMSystemZDesc -lLLVMSystemZInfo -lLLVMSystemZAsmPrinter -lLLVMSparcDisassembler -lLLVMSparcCodeGen -lLLVMSparcAsmParser -lLLVMSparcDesc -lLLVMSparcInfo -lLLVMSparcAsmPrinter -lLLVMR600CodeGen -lLLVMR600Desc -lLLVMR600Info -lLLVMR600AsmPrinter -lLLVMPowerPCDisassembler -lLLVMPowerPCCodeGen -lLLVMPowerPCAsmParser -lLLVMPowerPCDesc -lLLVMPowerPCInfo -lLLVMPowerPCAsmPrinter -lLLVMNVPTXCodeGen -lLLVMNVPTXDesc -lLLVMNVPTXInfo -lLLVMNVPTXAsmPrinter -lLLVMMSP430CodeGen -lLLVMMSP430Desc -lLLVMMSP430Info -lLLVMMSP430AsmPrinter -lLLVMMipsDisassembler -lLLVMMipsCodeGen -lLLVMMipsAsmParser -lLLVMMipsDesc -lLLVMMipsInfo -lLLVMMipsAsmPrinter -lLLVMHexagonCodeGen -lLLVMHexagonAsmPrinter -lLLVMHexagonDesc -lLLVMHexagonInfo -lLLVMCppBackendCodeGen -lLLVMCppBackendInfo -lLLVMARMDisassembler -lLLVMARMCodeGen -lLLVMARMAsmParser -lLLVMARMDesc -lLLVMARMInfo -lLLVMARMAsmPrinter -lLLVMAArch64Disassembler l-LLVMAArch64CodeGen -lLLVMAArch64AsmParser -lLLVMAArch64Desc -lLLVMAArch64Info -lLLVMAArch64AsmPrinter -lLLVMAArch64Utils -lLLVMTableGen -lLLVMDebugInfo -lLLVMOption -lLLVMX86Disassembler -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT -lLLVMLineEditor -lLLVMMCAnalysis -lLLVMInstrumentation -lLLVMInterpreter -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils -lLLVMipa -lLLVMAnalysis -lLLVMProfileData -lLLVMMCJIT -lLLVMTarget -lLLVMRuntimeDyld -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMExecutionEngine -lLLVMMC -lLLVMCore -lLLVMSupport 
-- LLVM JIT libs: -lLLVMX86Disassembler -lLLVMX86AsmParser -lLLVMX86CodeGen -lLLVMSelectionDAG -lLLVMAsmPrinter -lLLVMX86Desc -lLLVMObject -lLLVMMCParser -lLLVMBitReader -lLLVMMCDisassembler -lLLVMX86Info -lLLVMX86AsmPrinter -lLLVMX86Utils -lLLVMJIT -lLLVMExecutionEngine -lLLVMCodeGen -lLLVMScalarOpts -lLLVMInstCombine -lLLVMTransformUtils -lLLVMipa -lLLVMAnalysis -lLLVMTarget -lLLVMMC -lLLVMCore -lLLVMSupport 
-- LLVM JIT objs: 
-- Found LLVM: /usr/local/include 
-- Found LLVM 3.6.0svn 
-- Using LLVMConfig.cmake in: /usr/local/share/llvm/cmake 
-- Clang libs: /usr/local/lib/libclangFrontend.a/usr/local/lib/libclangDriver.a/usr/local/lib/libclangCodeGen.a/usr/local/lib/libclangSema.a/usr/local/lib/libclangAnalysis.a/usr/local/lib/libclangRewrite.a/usr/local/lib/libclangAST.a/usr/local/lib/libclangParse.a/usr/local/lib/libclangLex.a/usr/local/lib/libclangBasic.a/usr/local/lib/libclangARCMigrate.a/usr/local/lib/libclangEdit.a/usr/local/lib/libclangFrontendTool.a/usr/local/lib/libclangRewrite.a/usr/local/lib/libclangSerialization.a/usr/local/lib/libclangTooling.a/usr/local/lib/libclangStaticAnalyzerCheckers.a/usr/local/lib/libclangStaticAnalyzerCore.a/usr/local/lib/libclangStaticAnalyzerFrontend.a/usr/local/lib/libclangSema.a 
-- Found Clang: /usr/local/include 
-- Clang libs: /usr/local/lib/libclangFrontend.a/usr/local/lib/libclangDriver.a/usr/local/lib/libclangCodeGen.a/usr/local/lib/libclangSema.a/usr/local/lib/libclangAnalysis.a/usr/local/lib/libclangRewrite.a/usr/local/lib/libclangAST.a/usr/local/lib/libclangParse.a/usr/local/lib/libclangLex.a/usr/local/lib/libclangBasic.a/usr/local/lib/libclangARCMigrate.a/usr/local/lib/libclangEdit.a/usr/local/lib/libclangFrontendTool.a/usr/local/lib/libclangRewrite.a/usr/local/lib/libclangSerialization.a/usr/local/lib/libclangTooling.a/usr/local/lib/libclangStaticAnalyzerCheckers.a/usr/local/lib/libclangStaticAnalyzerCore.a/usr/local/lib/libclangStaticAnalyzerFrontend.a/usr/local/lib/libclangSema.a/usr/local/lib/libclangFrontend.a/usr/local/lib/libclangDriver.a/usr/local/lib/libclangCodeGen.a/usr/local/lib/libclangSema.a/usr/local/lib/libclangAnalysis.a/usr/local/lib/libclangRewrite.a/usr/local/lib/libclangAST.a/usr/local/lib/libclangParse.a/usr/local/lib/libclangLex.a/usr/local/lib/libclangBasic.a/usr/local/lib/libclangARCMigrate.a/usr/local/lib/libclangEdit.a/usr/local/lib/libclangFrontendTool.a/usr/local/lib/libclangRewrite.a/usr/local/lib/libclangSerialization.a/usr/local/lib/libclangTooling.a/usr/local/lib/libclangStaticAnalyzerCheckers.a/usr/local/lib/libclangStaticAnalyzerCore.a/usr/local/lib/libclangStaticAnalyzerFrontend.a/usr/local/lib/libclangSema.a 
-- Found Clang: /usr/local/include;/usr/local/include 
-- Configuring done 
-- Generating done 
-- Build files have been written to: /home/adel/workspace/ifcount/build 
Scanning dependencies of target ifcount 
[100%] Building CXX object CMakeFiles/ifcount.dir/main.cpp.o 
Linking CXX executable ifcount

最後，錯誤太多了，這裏有一些他們的輸入：

/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `llvm::opt::arg_iterator::arg_iterator(llvm::opt::Arg* const*, llvm::opt::ArgList const&, llvm::opt::OptSpecifier, llvm::opt::OptSpecifier, llvm::opt::OptSpecifier)': 
CompilerInvocation.cpp:(.text._ZN4llvm3opt12arg_iteratorC2EPKPNS0_3ArgERKNS0_7ArgListENS0_12OptSpecifierES9_S9_[_ZN4llvm3opt12arg_iteratorC5EPKPNS0_3ArgERKNS0_7ArgListENS0_12OptSpecifierES9_S9_]+0x5c): undefined reference to `llvm::opt::arg_iterator::SkipToNextArg()' 
/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `llvm::opt::arg_iterator::operator++()': 
CompilerInvocation.cpp:(.text._ZN4llvm3opt12arg_iteratorppEv[_ZN4llvm3opt12arg_iteratorppEv]+0x26): undefined reference to `llvm::opt::arg_iterator::SkipToNextArg()' 
/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `llvm::opt::ArgList::hasArg(llvm::opt::OptSpecifier) const': 
CompilerInvocation.cpp:(.text._ZNK4llvm3opt7ArgList6hasArgENS0_12OptSpecifierE[_ZNK4llvm3opt7ArgList6hasArgENS0_12OptSpecifierE]+0x1c): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `getOptimizationLevel(llvm::opt::ArgList&, clang::InputKind, clang::DiagnosticsEngine&)': 
CompilerInvocation.cpp:(.text._ZL20getOptimizationLevelRN4llvm3opt7ArgListEN5clang9InputKindERNS3_17DiagnosticsEngineE+0x8d): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL20getOptimizationLevelRN4llvm3opt7ArgListEN5clang9InputKindERNS3_17DiagnosticsEngineE+0xc6): undefined reference to `llvm::opt::Option::matches(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL20getOptimizationLevelRN4llvm3opt7ArgListEN5clang9InputKindERNS3_17DiagnosticsEngineE+0xfe): undefined reference to `llvm::opt::Option::matches(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL20getOptimizationLevelRN4llvm3opt7ArgListEN5clang9InputKindERNS3_17DiagnosticsEngineE+0x136): undefined reference to `llvm::opt::Option::matches(llvm::opt::OptSpecifier) const' 
/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `getOptimizationLevelSize(llvm::opt::ArgList&)': 
CompilerInvocation.cpp:(.text._ZL24getOptimizationLevelSizeRN4llvm3opt7ArgListE+0x2a): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL24getOptimizationLevelSizeRN4llvm3opt7ArgListE+0x5f): undefined reference to `llvm::opt::Option::matches(llvm::opt::OptSpecifier) const' 
/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `addDiagnosticArgs(llvm::opt::ArgList&, llvm::opt::OptSpecifier, llvm::opt::OptSpecifier, std::vector<std::string, std::allocator<std::string> >&)': 
CompilerInvocation.cpp:(.text._ZL17addDiagnosticArgsRN4llvm3opt7ArgListENS0_12OptSpecifierES3_RSt6vectorISsSaISsEE+0x188): undefined reference to `llvm::opt::Option::matches(llvm::opt::OptSpecifier) const' 
/usr/local/bin/../lib/libclangFrontend.a(CompilerInvocation.cpp.o): In function `ParseAnalyzerArgs(clang::AnalyzerOptions&, llvm::opt::ArgList&, clang::DiagnosticsEngine&)': 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x5e): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x132): undefined reference to `llvm::opt::Arg::getAsString(llvm::opt::ArgList const&) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x204): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x2d8): undefined reference to `llvm::opt::Arg::getAsString(llvm::opt::ArgList const&) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x3aa): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x4fe): undefined reference to `llvm::opt::Arg::getAsString(llvm::opt::ArgList const&) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x5d0): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x6e4): undefined reference to `llvm::opt::Arg::getAsString(llvm::opt::ArgList const&) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x7b6): undefined reference to `llvm::opt::ArgList::getLastArg(llvm::opt::OptSpecifier) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0x8aa): undefined reference to `llvm::opt::Arg::getAsString(llvm::opt::ArgList const&) const' 
CompilerInvocation.cpp:(.text._ZL17ParseAnalyzerArgsRN5clang15AnalyzerOptionsERN4llvm3opt7ArgListERNS_17DiagnosticsEngineE+0xc3f): undefined reference to `llvm::opt::ArgList::getLastArgValue(llvm::opt::OptSpecifier, llvm::StringRef) const'

任何幫助或建議，將不勝感激。謝謝。

來源

2014-09-11 Adel

你需要對LLVMOptions庫鏈接。查看LLVM版本中「選項」是否爲支持的「llvm_map_components_to_libnames」目標，或者將其作爲「target_link_library」添加。 – TartanLlama 2014-09-11 08:22:14

嗨，支持選項，但將它添加到'llvm_map_components_to_libnames'，或將LLVMOption添加到'target_link_library'不能解決鏈接問題。仍然有與上面相同的錯誤。 – Adel 2014-09-11 08:35:20

鏈接器標誌出現在命令行中的順序非常重要，因爲這些庫之間存在依賴關係。嘗試在'target_link_libraries'的開頭放置'LLVMOption'。 – TartanLlama 2014-09-11 08:37:47

我結束了基於this particular file基於重寫CMakeLists.txt。

下面是修改工作文件：

cmake_minimum_required(VERSION 2.8.4) 
project(ifcount) 

set(LLVM_PATH /home/adel/Downloads/llvm) 
link_directories(${LLVM_PATH}/lib) 
include_directories(${LLVM_PATH}/include) 

add_definitions(
-D__STDC_LIMIT_MACROS 
-D__STDC_CONSTANT_MACROS 
) 

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -std=c++11") 

set(SOURCE_FILES main.cpp) 
add_executable(ifcount ${SOURCE_FILES}) 

target_link_libraries(ifcount 
    clangFrontend 
    clangSerialization 
    clangDriver 
    clangParse 
    clangSema 
    clangAnalysis 
    clangAST 
    clangBasic 
    clangEdit 
    clangLex 
    clangTooling 
) 

target_link_libraries(ifcount 
    LLVMX86AsmParser # MC, MCParser, Support, X86Desc, X86Info 
    LLVMX86DesC# MC, Support, X86AsmPrinter, X86Info 
    LLVMX86AsmPrinter # MC, Support, X86Utils 
    LLVMX86Info # MC, Support, Target 
    LLVMX86Utils # Core, Support 
    LLVMipo 
    LLVMScalarOpts 
    LLVMInstCombine 
    LLVMTransformUtils 
    LLVMipa 
    LLVMAnalysis 
    LLVMTarget 
    LLVMOption # Support 
    LLVMMCParser # MC, Support 
    LLVMMC# Object, Support 
    LLVMObject # BitReader, Core, Support 
    LLVMBitReader # Core, Support 
    LLVMCore # Support 
    LLVMSupport 
) 

include(FindCurses) 
target_link_libraries(ifcount 
    pthread 
    z 
    dl 
    ${CURSES_LIBRARIES} 
)

來源

2014-09-11 09:00:49 Adel

爲$ LLVM_PATH更好地使用'llvm-config --src-root' – 2014-09-20 14:14:59

謝謝Hongxu，這很有幫助。 – Adel 2014-09-22 10:42:28

Cmake和鏗鏘工具鏈接錯誤（源樹外）

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