编译时未定义对“_asan_init_v4”的引用

Question

链接我使用 AddressSanitizer 工具编译的代码时，我收到了许多此类错误undefined reference to '_asan_init_v4'。

clang -fPIC -g -fno-omit-frame-pointer -DNDEBUG -Wl,-z,defs \
  -shared -Wl,-soname,libqpid-dispatch.so -o libqpid-dispatch.so \
  CMakeFiles/qpid-dispatch.dir/alloc_pool.c.o \
  CMakeFiles/qpid-dispatch.dir/amqp.c.o \
  [...]
  -lpthread -lrt -ldl -lpython3.7m -lwebsockets -fsanitize=address

错误的一些例子

/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: CMakeFiles/qpid-dispatch.dir/http-libwebsockets.c.o: in function `qd_http_server_free':
/home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:824: undefined reference to `__ubsan_handle_type_mismatch_v1'
/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: /home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:825: undefined reference to `__ubsan_handle_type_mismatch_v1'
/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: /home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:825: undefined reference to `__ubsan_handle_type_mismatch_v1'
/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: /home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:825: undefined reference to `__ubsan_handle_type_mismatch_v1'
/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: /home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:825: undefined reference to `__ubsan_handle_type_mismatch_v1'
/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: /home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:825: undefined reference to `__asan_report_load8'
/nix/store/1zf4cnaaidjajwb4gx4mnkqc5dypkcdy-binutils-2.31.1/bin/ld: /home/jdanek/repos/qpid/qpid-dispatch/src/http-libwebsockets.c:825: undefined reference to `__asan_report_load8'

注意：我使用的是 NixOS 19.09 和 Clang 10。

Answer 1

您应该使用编译标志-fsanitize=address：https : //github.com/google/sanitizers/wiki/AddressSanitizer

请注意-fsanitize=address= -lasan+ 一些附加选项。并且-lasanASan 开发人员不鼓励使用。

Answer 2

我不确定这就是问题所在，但对我来说，添加-lasan链接器选项足以让我的程序构建和运行。