Does the stack expand when SIGABRT occurs?

Question

Does the stack expand (destructors start) when SIGABRT is encountered in C ++?

Thanks.

Answer 1

This answer indicates that destructors are not called.

Answer 2

<Not p> No:

$ cat test.cc
#include <iostream>
#include <sys/types.h>
#include <signal.h>

class Test {
public:
   ~Test() { std::cout << "~Test called" << std::endl; }
};

int main(int argc, char *argv[])
{
   Test t = Test();
   if (argc > 1) {
      kill(0, SIGABRT);
   }
   return 0;
}
$ g++ test.cc
$ ./a.out
~Test called
$ ./a.out 1
Aborted

Answer 3

, . POSIX, C API, " ++, ".

Answer 4

man- signal(3) Mac OS X

  No    Name         Default Action       Description
...
 6     SIGABRT      create core image    abort program (formerly SIGIOT)

, ...

Answer 5

The SIGABRT signal is used to create the main application launch file for a while. We have been using this signal for some time to debug the application. And as far as I know, destructors are not called by this signal.