MacOS - clang 地址清理程序无法链接

Question

我一直在尝试使用 Clang 的地址代码清理器，但链接器没有它。链接器可能是“ld”，尽管我的 CMAKE 设置向我保证 clang 是链接器。

已添加 -fsanitize=address编译器和链接器标志。

错误:

Undefined symbols for architecture x86_64:
___asan_after_dynamic_init
...
___asan_before_dynamic_init
...
etc.
ld: symbol(s) not found for architecture x86_64    <<<< **suspicious**
clang: error: linker command failed with exit code 1 (use -v to see invocation)

环境:MacOS

clang:Apple LLVM 版本 8.0.0 (clang-800.0.38)

cmake:3.7.1

CMAKE_CXX_COMPILER =/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++(重定向到 clang)

CMAKE_CXX_COMPILER_ID = clang

编译器标志:-O0 -g -fsanitize=地址

CMAKE_LINKER =/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++(重定向到 clang)

CMAKE_CXX_LINK_EXECUTABLE = CMAKE_CXX_COMPILER 标志 CMAKE_CXX_LINK_FLAGS LINK_FLAGS 对象 -o 目标 LINK_LIBRARIES

CMAKE_CXX_LINK_FLAGS = -Wl,-search_paths_first -Wl,-headerpad_max_install_names -fsanitize=地址 -v

Answer 1

来自 here 的解决方案

Pass the -fsanitize=address flag to the linker as well as the compiler.

-DCMAKE_EXE_LINKER_FLAGS="-fsanitize=address"