GDB中针对特定对象的断点

Question

I need to check where destructor of some specific object is called from. Let's say it is std::string at 0x9b993e4. I tried to execute following:

b std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string if (this==0x9b993e4)

But GDB says "No symbol "this" in current context." I also tried

b std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string if (std::basic_string<char, std::char_traits<char>, std::allocator<char> >::this==0x9b993e4)

GDB looks like set breakpoint, but when I run, it stops and writes

Error in testing breakpoint condition:
There is no field named this

Can anyone tell me how to break in destructor of specific object?

Thanks in advance!

Answer 1

I could not find any better way than use registers. So, on x86 you can check EAX, on ARM, probably, R0.

b ClassName::~ClassName if ($eax==<object_address>)

This solution doesn't work for some global static objects in my case.

Answer 2

break std::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()