I was looking into C++ new/delete --wrap linker options, and noticed that in a quick test the wrapper for delete was not being called. This was because delete is being compiled to _ZdlPvm and that symbol is not present in the --wrap arguments in the GCC spec, and is not part of the per_process_cxx_malloc struct. I'm not seeing anything in that cxx_malloc struct like a size or version number, so I don't know a good way to extend it given that it is part of the startup code linked into every binary.
Here are the current symbols from libc++ and how they demangle: _ZdaPv operator delete[](void*) _ZdaPvm operator delete[](void*, unsigned long) _ZdaPvmSt11align_val_t operator delete[](void*, unsigned long, std::align_val_t) _ZdaPvRKSt9nothrow_t operator delete[](void*, std::nothrow_t const&) _ZdaPvSt11align_val_t operator delete[](void*, std::align_val_t) _ZdaPvSt11align_val_tRKSt9nothrow_t operator delete[](void*, std::align_val_t, std::nothrow_t const&) _ZdlPv operator delete(void*) _ZdlPvm operator delete(void*, unsigned long) _ZdlPvmSt11align_val_t operator delete(void*, unsigned long, std::align_val_t) _ZdlPvRKSt9nothrow_t operator delete(void*, std::nothrow_t const&) _ZdlPvSt11align_val_t operator delete(void*, std::align_val_t) _ZdlPvSt11align_val_tRKSt9nothrow_t operator delete(void*, std::align_val_t, std::nothrow_t const&) _Znam operator new[](unsigned long) _ZnamRKSt9nothrow_t operator new[](unsigned long, std::nothrow_t const&) _ZnamSt11align_val_t operator new[](unsigned long, std::align_val_t) _ZnamSt11align_val_tRKSt9nothrow_t operator new[](unsigned long, std::align_val_t, std::nothrow_t const&) _Znwm operator new(unsigned long) _ZnwmRKSt9nothrow_t operator new(unsigned long, std::nothrow_t const&) _ZnwmSt11align_val_t operator new(unsigned long, std::align_val_t) _ZnwmSt11align_val_tRKSt9nothrow_t operator new(unsigned long, std::align_val_t, std::nothrow_t const&) -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
