Home » C++ » How to enable core dump in my Linux C++ program [duplicate]

How to enable core dump in my Linux C++ program [duplicate]

Posted by: admin November 29, 2017 Leave a comment

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You need to set ulimit -c. If you have 0 for this parameter a coredump file is not created. So do this: ulimit -c unlimited and check if everything is correct ulimit -a. The coredump file is created when an application has done for example something inappropriate. The name of the file on my system is core.<process-pid-here>.

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You can do it this way inside a program:

#include <sys/resource.h>

// core dumps may be disallowed by parent of this process; change that
struct rlimit core_limits;
core_limits.rlim_cur = core_limits.rlim_max = RLIM_INFINITY;
setrlimit(RLIMIT_CORE, &core_limits);

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By default many profiles are defaulted to 0 core file size because the average user doesn’t know what to do with them.

Try ulimit -c unlimited before running your program.