当前位置： 文江博客 话题详情

与CMAKE（MACOS）叮当的架构x86_64的未定义符号

发布于 2025-02-09 20:18:33 字数 9552 浏览 0 评论 0 原文

我是CMAKE和LLVM/CLANG的新手，因此我使用Brew安装了LLVM（ BREW INSTALS LLVM ，并按照Homebrew export> export path =“/usr/usr/local/opt/llvm更新了我的路径/bin：$ path“ ）用于学习目的，我在macos中尝试了一个简单的main.c ：（

注意：我在 1 ， 2 ， 3 ， 4 a href =“ https://stackoverflow.com/questions/25782537/cmake-and-clang-tooling-linking-linking-error-com-----------------25783251 #25783251”> 5 https://stackoverflow.com/questions/30867712/add-llvm-to-project-using-cmake"> 6 ， 7 和但到目前为止的答案对我没有用）

main.c 

#include <clang-c/CXString.h>
#include <stdio.h>

void show_clang_version(void) {
        CXString version = clang_getClangVersion();
        printf("%s\n", clang_getCString(version));
        clang_disposeString(version);
}

int main( int argc, const char *const * argv )
{
        show_clang_version();
        return 0;
}

，然后是“简单”的cmakelists.txt 

cmake_minimum_required(VERSION 3.0.0)
project(cmake-libclang VERSION 0.1.0)


set(triple "x86-64")
set(CMAKE_C_COMPILER clang)
set(CMAKE_LINKER ld64.lld)


message(STATUS "C   compiler: ${CMAKE_C_COMPILER_ID}  version: ${CMAKE_C_COMPILER_VERSION}" )
message(STATUS "C++ compiler: ${CMAKE_CXX_COMPILER_ID} version: ${CMAKE_CXX_COMPILER_VERSION}" )

######################################################################
# LLVM Package
######################################################################

find_package(LLVM REQUIRED CONFIG)

message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
message(STATUS "Using LLVM prefix directory: ${LLVM_PREFIX_DIR}")
message(STATUS "Using LLVM include directory: ${LLVM_INCLUDE_DIRS}")
message(STATUS "Using LLVM link directories: ${LLVM_LIBRARY_DIRS}")
message(STATUS "Using LLVM link directory: ${LLVM_LIBRARY_DIR}")
message(STATUS "Using LLVM binary directory: ${LLVM_BINARY_DIR}")
message(STATUS "Using LLVM definitions: ${LLVM_DEFINITIONS}")
message(STATUS "Using LLVM search paths: ${LLVM_SEARCH_PATHS}")

include_directories(${LLVM_INCLUDE_DIRS})
link_directories(${LLVM_LIBRARY_DIRS})
add_definitions(${LLVM_DEFINITIONS})

######################################################################
# CLANG package
######################################################################
find_package(CLANG CONFIG REQUIRED)
set(CLANG_LIBRARY_DIR ${LLVM_INCLUDE_DIRS})
set(CLANG_LIBRARY_DIRS ${CLANG_LIBRARY_DIR})

message(STATUS "Using ClangConfig.cmake in: ${CLANG_CMAKE_DIR}")
message(STATUS "Using CLANG include directory: ${CLANG_INCLUDE_DIRS}")
message(STATUS "Using CLANG link directory: ${CLANG_LIBRARY_DIR}")
message(STATUS "Using CLANG link directory: ${CLANG_LIBRARY_DIRS}")
message(STATUS "Using CLANG built-in directory: ${CLANG_BUILTIN_DIR}")
message(STATUS "Using CLANG_LIBRARY_DIRSNG definitions: ${CLANG_DEFINITIONS}")
message(STATUS "Using CLANG lib: ${CLANG_CLANG_LIB}")
message(STATUS "Using CLANG libs: ${LIBCLANG_LIBRARY}")

include_directories(${CLANG_INCLUDE_DIRS})
link_directories(${CLANG_LIBRARY_DIR})
add_definitions(${CLANG_DEFINITIONS})

######################################################################
# Parameters
######################################################################

add_executable(cmake-libclang main.c)

# Find the libraries that correspond to the LLVM components
# that we wish to use and link against LLVM libraries
llvm_map_components_to_libnames(llvm_libs -13)
target_link_libraries(cmake-libclang ${llvm_libs})

所以我以这种方式构建，一切似乎都可以： 

$ cmake .
-- The C compiler identification is AppleClang 12.0.5.12050022
-- The CXX compiler identification is AppleClang 12.0.5.12050022
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- C   compiler: AppleClang  version: 12.0.5.12050022
-- C++ compiler: AppleClang version: 12.0.5.12050022
-- Found ZLIB: /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libz.tbd (found version "1.2.11")
-- Found LibXml2: /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libxml2.tbd (found version "2.9.4")
-- Found LLVM 13.0.1
-- Using LLVMConfig.cmake in: /usr/local/opt/llvm/lib/cmake/llvm
-- Using LLVM prefix directory:
-- Using LLVM include directory: /usr/local/opt/llvm/include
-- Using LLVM link directories: /usr/local/opt/llvm/lib
-- Using LLVM link directory: /usr/local/opt/llvm/lib
-- Using LLVM binary directory: /usr/local/opt/llvm
-- Using LLVM definitions: -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-- Using LLVM search paths:
-- Using ClangConfig.cmake in: /usr/local/opt/llvm/lib/cmake/clang
-- Using CLANG include directory: /usr/local/opt/llvm/include
-- Using CLANG link directory: /usr/local/opt/llvm/include
-- Using CLANG link directory: /usr/local/opt/llvm/include
-- Using CLANG built-in directory:
-- Using CLANG definitions:
-- Using CLANG lib:
-- Using CLANG libs:
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/veronica/test-project

现在是怪异的部分。错误如下： 

cmake --build . --clean-first
[ 50%] Building C object CMakeFiles/cmake-libclang.dir/main.c.o
/Users/veronica/main.c:5:28: warning: implicit declaration of function 'clang_getClangVersion' is invalid in C99 [-Wimplicit-function-declaration]
        CXString version = clang_getClangVersion();
                           ^
/Users/veronica/main.c:5:18: error: initializing 'CXString' with an expression of incompatible type 'int'
        CXString version = clang_getClangVersion();
                 ^         ~~~~~~~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
make[2]: *** [CMakeFiles/cmake-libclang.dir/main.c.o] Error 1
make[1]: *** [CMakeFiles/cmake-libclang.dir/all] Error 2
make: *** [all] Error 2

我搜索函数： 

grep clang_getClangVersion /usr/local/opt/llvm/include/clang-c/Index.h
CINDEX_LINKAGE CXString clang_getClangVersion(void);

，因此我将index.h包括在main.c.c中。 

#include <clang-c/CXString.h>
#include <clang-c/Index.h>
...

，但最后我得到了这个错误： 

$ cmake --build .
[ 50%] Building C object CMakeFiles/cmake-libclang.dir/main.c.o
[100%] Linking C executable cmake-libclang
Undefined symbols for architecture x86_64:
  "_clang_disposeString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getCString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getClangVersion", referenced from:
      _show_clang_version in main.c.o
ld: symbol(s) not found for architecture x86_64
clang-13: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [cmake-libclang] Error 1
make[1]: *** [CMakeFiles/cmake-libclang.dir/all] Error 2
make: *** [all] Error 2

这是我的llvm config： 

$ llvm-config --version --prefix --includedir --libdir --libs
13.0.1
/usr/local/Cellar/llvm/13.0.1_1
/usr/local/Cellar/llvm/13.0.1_1/include
/usr/local/Cellar/llvm/13.0.1_1/lib
-lLLVM-13

i会喜欢一个解释（或更好地解决此问题的建议），因为/usr/usr/local/opt/opt/llvm/lib/say“ mach-o 64 lib shared osss Library x86_64”下的所有.dylib文件说“ Mach-O 64位

”欢迎想法。

PS：这是使用-v和cmake使用-v的详细输出

[ 50%] Linking C executable cmake-libclang
/Users/veronica/vcpkg/downloads/tools/cmake-3.22.2-osx/cmake-3.22.2-macos-universal/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmake-libclang.dir/link.txt --verbose=1
clang  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk -mmacosx-version-min=11.6 -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/cmake-libclang.dir/main.c.o -o cmake-libclang   -L/usr/local/opt/llvm/lib  -L/usr/local/opt/llvm/include  -Wl,-rpath,/usr/local/opt/llvm/lib -Wl,-rpath,/usr/local/opt/llvm/include -lLLVM-13
Undefined symbols for architecture x86_64:
  "_clang_disposeString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getCString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getClangVersion", referenced from:
      _show_clang_version in main.c.o
ld: symbol(s) not found for architecture x86_64
clang-13: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [cmake-libclang] Error 1
make[1]: *** [CMakeFiles/cmake-libclang.dir/all] Error 2
make: *** [all] Error 2
原文

I am new to CMake and LLVM/Clang, so I installed LLVM with brew (brew install llvm and updated my PATH as suggested by homebrew export PATH="/usr/local/opt/llvm/bin:$PATH") for learning purposes and I tried a simple main.c in my macOS:

(Note: I researched for similar answers to this particular issue in 1, 2, 3, 4, 5, 6, 7 and 8 but answers so far were not useful for me)

main.c

#include <clang-c/CXString.h>
#include <stdio.h>

void show_clang_version(void) {
        CXString version = clang_getClangVersion();
        printf("%s\n", clang_getCString(version));
        clang_disposeString(version);
}

int main( int argc, const char *const * argv )
{
        show_clang_version();
        return 0;
}

And then a "simple" CMakeLists.txt

cmake_minimum_required(VERSION 3.0.0)
project(cmake-libclang VERSION 0.1.0)


set(triple "x86-64")
set(CMAKE_C_COMPILER clang)
set(CMAKE_LINKER ld64.lld)


message(STATUS "C   compiler: ${CMAKE_C_COMPILER_ID}  version: ${CMAKE_C_COMPILER_VERSION}" )
message(STATUS "C++ compiler: ${CMAKE_CXX_COMPILER_ID} version: ${CMAKE_CXX_COMPILER_VERSION}" )

######################################################################
# LLVM Package
######################################################################

find_package(LLVM REQUIRED CONFIG)

message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")
message(STATUS "Using LLVM prefix directory: ${LLVM_PREFIX_DIR}")
message(STATUS "Using LLVM include directory: ${LLVM_INCLUDE_DIRS}")
message(STATUS "Using LLVM link directories: ${LLVM_LIBRARY_DIRS}")
message(STATUS "Using LLVM link directory: ${LLVM_LIBRARY_DIR}")
message(STATUS "Using LLVM binary directory: ${LLVM_BINARY_DIR}")
message(STATUS "Using LLVM definitions: ${LLVM_DEFINITIONS}")
message(STATUS "Using LLVM search paths: ${LLVM_SEARCH_PATHS}")

include_directories(${LLVM_INCLUDE_DIRS})
link_directories(${LLVM_LIBRARY_DIRS})
add_definitions(${LLVM_DEFINITIONS})

######################################################################
# CLANG package
######################################################################
find_package(CLANG CONFIG REQUIRED)
set(CLANG_LIBRARY_DIR ${LLVM_INCLUDE_DIRS})
set(CLANG_LIBRARY_DIRS ${CLANG_LIBRARY_DIR})

message(STATUS "Using ClangConfig.cmake in: ${CLANG_CMAKE_DIR}")
message(STATUS "Using CLANG include directory: ${CLANG_INCLUDE_DIRS}")
message(STATUS "Using CLANG link directory: ${CLANG_LIBRARY_DIR}")
message(STATUS "Using CLANG link directory: ${CLANG_LIBRARY_DIRS}")
message(STATUS "Using CLANG built-in directory: ${CLANG_BUILTIN_DIR}")
message(STATUS "Using CLANG_LIBRARY_DIRSNG definitions: ${CLANG_DEFINITIONS}")
message(STATUS "Using CLANG lib: ${CLANG_CLANG_LIB}")
message(STATUS "Using CLANG libs: ${LIBCLANG_LIBRARY}")

include_directories(${CLANG_INCLUDE_DIRS})
link_directories(${CLANG_LIBRARY_DIR})
add_definitions(${CLANG_DEFINITIONS})

######################################################################
# Parameters
######################################################################

add_executable(cmake-libclang main.c)

# Find the libraries that correspond to the LLVM components
# that we wish to use and link against LLVM libraries
llvm_map_components_to_libnames(llvm_libs -13)
target_link_libraries(cmake-libclang ${llvm_libs})

So I build this way and everything seems ok:

$ cmake .
-- The C compiler identification is AppleClang 12.0.5.12050022
-- The CXX compiler identification is AppleClang 12.0.5.12050022
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /Library/Developer/CommandLineTools/usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /Library/Developer/CommandLineTools/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- C   compiler: AppleClang  version: 12.0.5.12050022
-- C++ compiler: AppleClang version: 12.0.5.12050022
-- Found ZLIB: /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libz.tbd (found version "1.2.11")
-- Found LibXml2: /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk/usr/lib/libxml2.tbd (found version "2.9.4")
-- Found LLVM 13.0.1
-- Using LLVMConfig.cmake in: /usr/local/opt/llvm/lib/cmake/llvm
-- Using LLVM prefix directory:
-- Using LLVM include directory: /usr/local/opt/llvm/include
-- Using LLVM link directories: /usr/local/opt/llvm/lib
-- Using LLVM link directory: /usr/local/opt/llvm/lib
-- Using LLVM binary directory: /usr/local/opt/llvm
-- Using LLVM definitions: -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
-- Using LLVM search paths:
-- Using ClangConfig.cmake in: /usr/local/opt/llvm/lib/cmake/clang
-- Using CLANG include directory: /usr/local/opt/llvm/include
-- Using CLANG link directory: /usr/local/opt/llvm/include
-- Using CLANG link directory: /usr/local/opt/llvm/include
-- Using CLANG built-in directory:
-- Using CLANG definitions:
-- Using CLANG lib:
-- Using CLANG libs:
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/veronica/test-project

Now here comes the weird part. The error is as follows:

cmake --build . --clean-first
[ 50%] Building C object CMakeFiles/cmake-libclang.dir/main.c.o
/Users/veronica/main.c:5:28: warning: implicit declaration of function 'clang_getClangVersion' is invalid in C99 [-Wimplicit-function-declaration]
        CXString version = clang_getClangVersion();
                           ^
/Users/veronica/main.c:5:18: error: initializing 'CXString' with an expression of incompatible type 'int'
        CXString version = clang_getClangVersion();
                 ^         ~~~~~~~~~~~~~~~~~~~~~~~
1 warning and 1 error generated.
make[2]: *** [CMakeFiles/cmake-libclang.dir/main.c.o] Error 1
make[1]: *** [CMakeFiles/cmake-libclang.dir/all] Error 2
make: *** [all] Error 2

I search the function:

grep clang_getClangVersion /usr/local/opt/llvm/include/clang-c/Index.h
CINDEX_LINKAGE CXString clang_getClangVersion(void);

So I include the Index.h in main.c

#include <clang-c/CXString.h>
#include <clang-c/Index.h>
...

But finally I get this error:

$ cmake --build .
[ 50%] Building C object CMakeFiles/cmake-libclang.dir/main.c.o
[100%] Linking C executable cmake-libclang
Undefined symbols for architecture x86_64:
  "_clang_disposeString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getCString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getClangVersion", referenced from:
      _show_clang_version in main.c.o
ld: symbol(s) not found for architecture x86_64
clang-13: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [cmake-libclang] Error 1
make[1]: *** [CMakeFiles/cmake-libclang.dir/all] Error 2
make: *** [all] Error 2

This is my LLVM config:

$ llvm-config --version --prefix --includedir --libdir --libs
13.0.1
/usr/local/Cellar/llvm/13.0.1_1
/usr/local/Cellar/llvm/13.0.1_1/include
/usr/local/Cellar/llvm/13.0.1_1/lib
-lLLVM-13

I would love an explanation (or better suggestions on how to fix this) to what's happening here because all .dylib files under /usr/local/opt/llvm/lib/ says "Mach-O 64-bit dynamically linked shared library x86_64"

Any ideas are welcomed.

PS: Here is the verbose output using -v with cmake

[ 50%] Linking C executable cmake-libclang
/Users/veronica/vcpkg/downloads/tools/cmake-3.22.2-osx/cmake-3.22.2-macos-universal/CMake.app/Contents/bin/cmake -E cmake_link_script CMakeFiles/cmake-libclang.dir/link.txt --verbose=1
clang  -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.1.sdk -mmacosx-version-min=11.6 -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/cmake-libclang.dir/main.c.o -o cmake-libclang   -L/usr/local/opt/llvm/lib  -L/usr/local/opt/llvm/include  -Wl,-rpath,/usr/local/opt/llvm/lib -Wl,-rpath,/usr/local/opt/llvm/include -lLLVM-13
Undefined symbols for architecture x86_64:
  "_clang_disposeString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getCString", referenced from:
      _show_clang_version in main.c.o
  "_clang_getClangVersion", referenced from:
      _show_clang_version in main.c.o
ld: symbol(s) not found for architecture x86_64
clang-13: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [cmake-libclang] Error 1
make[1]: *** [CMakeFiles/cmake-libclang.dir/all] Error 2
make: *** [all] Error 2

如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

扫码二维码加入Web技术交流群

发布评论

需要 登录 才能够评论， 你可以免费 注册 一个本站的账号。
列表为空，暂无数据

关于作者

栀梦

暂无简介

文章
评论
27 人气
发私信

相关话题

更多

热门标签

操作系统 程序设计 IT运维 Linux系统管理 JavaScript 服务器应用 solaris C/C++ PHP Shell BSD Vue.js aix Oracle Python HTML 系统管理 HTML5 CSS 前端
更多

推荐作者

Mr.HU

文章 0 评论 0

疯到世界奔溃

文章 0 评论 0

隔纱相望

文章 0 评论 0

萌无敌

文章 0 评论 0

梦幻的味道

文章 0 评论 0

自在安然

文章 0 评论 0

更多

友情链接

文江博客
    我们使用 Cookies 和其他技术来定制您的体验包括您的登录状态等。通过阅读我们的 隐私政策 了解更多相关信息。 单击 接受 或继续使用网站，即表示您同意使用 Cookies 和您的相关数据。
    原文