CODEWITHSUNDEEP
c++ccoredump
Karlson
Karlson

Reputation: 3048

Inline core dump generation from a C/C++ program

In the course of development of some application we came to a need of possibly getting a complete core dump without completely stopping execution of a program completely.

Granted there are conditions that generate core dump where continuation may not be safely possible but we are not talking about memory corruption, and such.

What I am looking to do is send a signal to the program and generate a complete core without or minimally impacting program execution

Is this possible? If so how?

Upvotes: 0

Views: 1269

Answers (2)

Gene
Gene

Reputation: 47020

Coredumpber is for Linux and obviously a great idea if that's your OS.

For other Posix-like systems, something like this ought to work fine:

#include <stdlib.h>
#include <process.h>

// Fork and abort for a core dump. This process keeps running.
if (fork() == 0) abort();

Of course the environment must be set to dump core on SIGABRT. You could also try raise(SIGTERM), which is like kill -9.

Upvotes: 0

Cartesius00
Cartesius00

Reputation: 24414

See this Google library, it might help: http://code.google.com/p/google-coredumper/

The coredumper library can be compiled into applications to create core dumps of the running program -- without terminating.

Upvotes: 3

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