g++用户定义的动态链接库上的全局new和delete运算符

在g++上，来自动态链接库的代码使用主程序中的运算符delete。使用-Wl,-Bsymbolic选项，动态链接库使用自己的运算符new，但使用主程序的运算符delete。使用带有-Wl,-Bsymbolic选项的clang++编译时，会使用自己的运算符new和delete动态链接库。在linux(ubuntu(上

// base_program.cpp
#include <dlfcn.h>
#include <stdio.h>
#include <cstdlib>
typedef void dllFunc();
void *operator new(std::size_t count) {
printf("base_program newn");
void *result = malloc(count);
return result;
}
void *operator new[](std::size_t count) {
printf("base_program new[]n");
void *result = malloc(count);
return result;
}
void operator delete(void *ptr) noexcept {
printf("base_program deleten");
free(ptr);
}
void operator delete[](void *ptr) noexcept {
printf("base_program delete[]n");
free(ptr);
}
int main(int nArgs, char **args) {
void *handle = dlopen(DLLFILE, RTLD_LAZY);
dllFunc *func = (dllFunc*) dlsym(handle, "testFunc");
printf("Linking with %sn", DLLFILE);
int *a = new int;
delete a;
func();
printf("n");
return 0;
}
// linking.cpp
#include <stdio.h>
#include <cstdlib>
void *operator new(std::size_t count) {
printf("linking newn");
void *result = malloc(count);
return result;
}
void *operator new[](std::size_t count) {
printf("linking new[]n");
void *result = malloc(count);
return result;
}
void operator delete(void *ptr) noexcept {
printf("linking deleten");
free(ptr);
}
void operator delete[](void *ptr) noexcept {
printf("linking delete[]n");
free(ptr);
}
extern "C" void testFunc() {
int *a = new int;
delete a;
}
// build.sh
g++ -g -fPIC -DDLLFILE=""linking_g.so"" base_program.cpp -o base_program_g -ldl
g++ -g -fPIC -shared linking.cpp -o linking_g.so -Wl,-Bsymbolic
clang++ -g -fPIC -DDLLFILE=""linking_clang.so"" base_program.cpp -o base_program_clang -ldl
clang++ -g -fPIC -shared linking.cpp -o linking_clang.so -Wl,-Bsymbolic

运行./build.sh; ./base_program_g; ./base_program_clang会产生以下

Linking with linking_g.so
base_program new
base_program delete
linking new
base_program delete
Linking with linking_clang.so
base_program new
base_program delete
linking new
linking delete

如何获得g++中的叮当行为？