clang 库的导入顺序
order of imports for clang libraries
我正在编写自己的 Makefile 来编译由以下代码组成的最小独立 clang 工具:
#include "clang/Tooling/CommonOptionsParser.h"
#include "clang/Tooling/Tooling.h"
using namespace clang;
using namespace clang::driver;
using namespace clang::tooling;
static llvm::cl::OptionCategory ToolingSampleCategory("MetaLift Clang Frontend");
int main (int argc, const char **argv)
{
CommonOptionsParser op(argc, argv, ToolingSampleCategory);
ClangTool Tool(op.getCompilations(), op.getSourcePathList());
return 0;
}
是否有 "proper" 命令导入 clang 库?我目前的订单是:
-lclangTooling -lclangSerialization -lclangFrontend
但我一直运行陷入未定义的符号问题。
我发现使用 CMake 是构建 libTooling-based 应用程序的最简单方法。这是编译您的示例的简约代码段:
# CMakeLists.txt
cmake_minimum_required(VERSION 3.12)
# Find CMake file for Clang
find_package(Clang REQUIRED)
# Add path to LLVM modules
set(CMAKE_MODULE_PATH
${CMAKE_MODULE_PATH}
"${LLVM_CMAKE_DIR}"
)
# import LLVM CMake functions
include(AddLLVM)
include_directories(${LLVM_INCLUDE_DIRS})
include_directories(${CLANG_INCLUDE_DIRS})
add_definitions(${LLVM_DEFINITIONS})
add_definitions(${CLANG_DEFINITIONS})
add_llvm_executable(myTool main.cpp)
set_property(TARGET myTool PROPERTY CXX_STANDARD 11)
target_link_libraries(myTool PRIVATE clangTooling)
// main.cpp
#include "clang/Tooling/CommonOptionsParser.h"
#include "clang/Tooling/Tooling.h"
using namespace clang;
using namespace clang::driver;
using namespace clang::tooling;
static llvm::cl::OptionCategory
ToolingSampleCategory("MetaLift Clang Frontend");
int main(int argc, const char **argv) {
CommonOptionsParser op(argc, argv, ToolingSampleCategory);
ClangTool Tool(op.getCompilations(), op.getSourcePathList());
return 0;
}
我检查了构建期间发生的实际命令:
c++ -DGTEST_HAS_RTTI=0 -I${CLANG}/include -O3 -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -fno-exceptions -fno-rtti -std=gnu++11 -o CMakeFiles/myTool.dir/main.cpp.o -c /Users/vsavchenko/source/c++/clang-makefile/main.cpp
c++ -O3 -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names -Wl,-dead_strip CMakeFiles/myTool.dir/main.cpp.o -o myTool -Wl,-rpath,@loader_path/../lib -Wl,-rpath,${CLANG}/lib ${CLANG}/lib/libclangTooling.a ${CLANG}/lib/libclangASTMatchers.a ${CLANG}/lib/libclangFormat.a ${CLANG}/lib/libclangFrontend.a ${CLANG}/lib/libclangDriver.a ${CLANG}/lib/libclangParse.a ${CLANG}/lib/libLLVMMCParser.a ${CLANG}/lib/libclangSerialization.a ${CLANG}/lib/libclangSema.a ${CLANG}/lib/libclangEdit.a ${CLANG}/lib/libclangAnalysis.a ${CLANG}/lib/libLLVMBitReader.a ${CLANG}/lib/libLLVMProfileData.a ${CLANG}/lib/libclangToolingCore.a ${CLANG}/lib/libclangAST.a ${CLANG}/lib/libclangRewrite.a ${CLANG}/lib/libclangLex.a ${CLANG}/lib/libclangBasic.a ${CLANG}/lib/libLLVMCore.a ${CLANG}/lib/libLLVMBinaryFormat.a ${CLANG}/lib/libLLVMMC.a ${CLANG}/lib/libLLVMOption.a ${CLANG}/lib/libLLVMSupport.a -lz -lcurses -lm /Users/vsavchenko/bin/clang/lib/libLLVMDemangle.a
看起来问题不在于 Clang 库的顺序,而是它们的数量不足。以下命令完成且没有链接错误:
LIBRARY_PATH=${CLANG}/lib clang++ -std=c++11 -lclangTooling -lclangASTMatchers -lclangFormat -lclangFrontend -lclangDriver -lclangParse -lLLVMMCParser -lclangSerialization -lclangSema -lclangEdit -lclangAnalysis -lLLVMBitReader -lLLVMProfileData -lclangToolingCore -lclangAST -lclangRewrite -lclangLex -lclangBasic -lLLVMCore -lLLVMBinaryFormat -lLLVMMC -lLLVMOption -lLLVMSupport -lz -lcurses -lLLVMDemangle -I${CLANG}/include main.cpp
祝您使用 Clang 愉快!
我正在编写自己的 Makefile 来编译由以下代码组成的最小独立 clang 工具:
#include "clang/Tooling/CommonOptionsParser.h"
#include "clang/Tooling/Tooling.h"
using namespace clang;
using namespace clang::driver;
using namespace clang::tooling;
static llvm::cl::OptionCategory ToolingSampleCategory("MetaLift Clang Frontend");
int main (int argc, const char **argv)
{
CommonOptionsParser op(argc, argv, ToolingSampleCategory);
ClangTool Tool(op.getCompilations(), op.getSourcePathList());
return 0;
}
是否有 "proper" 命令导入 clang 库?我目前的订单是:
-lclangTooling -lclangSerialization -lclangFrontend
但我一直运行陷入未定义的符号问题。
我发现使用 CMake 是构建 libTooling-based 应用程序的最简单方法。这是编译您的示例的简约代码段:
# CMakeLists.txt
cmake_minimum_required(VERSION 3.12)
# Find CMake file for Clang
find_package(Clang REQUIRED)
# Add path to LLVM modules
set(CMAKE_MODULE_PATH
${CMAKE_MODULE_PATH}
"${LLVM_CMAKE_DIR}"
)
# import LLVM CMake functions
include(AddLLVM)
include_directories(${LLVM_INCLUDE_DIRS})
include_directories(${CLANG_INCLUDE_DIRS})
add_definitions(${LLVM_DEFINITIONS})
add_definitions(${CLANG_DEFINITIONS})
add_llvm_executable(myTool main.cpp)
set_property(TARGET myTool PROPERTY CXX_STANDARD 11)
target_link_libraries(myTool PRIVATE clangTooling)
// main.cpp
#include "clang/Tooling/CommonOptionsParser.h"
#include "clang/Tooling/Tooling.h"
using namespace clang;
using namespace clang::driver;
using namespace clang::tooling;
static llvm::cl::OptionCategory
ToolingSampleCategory("MetaLift Clang Frontend");
int main(int argc, const char **argv) {
CommonOptionsParser op(argc, argv, ToolingSampleCategory);
ClangTool Tool(op.getCompilations(), op.getSourcePathList());
return 0;
}
我检查了构建期间发生的实际命令:
c++ -DGTEST_HAS_RTTI=0 -I${CLANG}/include -O3 -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -fno-exceptions -fno-rtti -std=gnu++11 -o CMakeFiles/myTool.dir/main.cpp.o -c /Users/vsavchenko/source/c++/clang-makefile/main.cpp
c++ -O3 -DNDEBUG -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names -Wl,-dead_strip CMakeFiles/myTool.dir/main.cpp.o -o myTool -Wl,-rpath,@loader_path/../lib -Wl,-rpath,${CLANG}/lib ${CLANG}/lib/libclangTooling.a ${CLANG}/lib/libclangASTMatchers.a ${CLANG}/lib/libclangFormat.a ${CLANG}/lib/libclangFrontend.a ${CLANG}/lib/libclangDriver.a ${CLANG}/lib/libclangParse.a ${CLANG}/lib/libLLVMMCParser.a ${CLANG}/lib/libclangSerialization.a ${CLANG}/lib/libclangSema.a ${CLANG}/lib/libclangEdit.a ${CLANG}/lib/libclangAnalysis.a ${CLANG}/lib/libLLVMBitReader.a ${CLANG}/lib/libLLVMProfileData.a ${CLANG}/lib/libclangToolingCore.a ${CLANG}/lib/libclangAST.a ${CLANG}/lib/libclangRewrite.a ${CLANG}/lib/libclangLex.a ${CLANG}/lib/libclangBasic.a ${CLANG}/lib/libLLVMCore.a ${CLANG}/lib/libLLVMBinaryFormat.a ${CLANG}/lib/libLLVMMC.a ${CLANG}/lib/libLLVMOption.a ${CLANG}/lib/libLLVMSupport.a -lz -lcurses -lm /Users/vsavchenko/bin/clang/lib/libLLVMDemangle.a
看起来问题不在于 Clang 库的顺序,而是它们的数量不足。以下命令完成且没有链接错误:
LIBRARY_PATH=${CLANG}/lib clang++ -std=c++11 -lclangTooling -lclangASTMatchers -lclangFormat -lclangFrontend -lclangDriver -lclangParse -lLLVMMCParser -lclangSerialization -lclangSema -lclangEdit -lclangAnalysis -lLLVMBitReader -lLLVMProfileData -lclangToolingCore -lclangAST -lclangRewrite -lclangLex -lclangBasic -lLLVMCore -lLLVMBinaryFormat -lLLVMMC -lLLVMOption -lLLVMSupport -lz -lcurses -lLLVMDemangle -I${CLANG}/include main.cpp
祝您使用 Clang 愉快!