core

func DumpAll ¶

func DumpAll() (pid int, err error)

Dump all threads. This is done using the external tool `gcore`. `gcore` is part of GDB's binutils and must be installed for this method to work. The core dump will contain all threads of the current process.

func DumpAllTo ¶

func DumpAllTo(prefix string) (pid int, err error)

Same as `DumpAll`, but use the provided prefix for the core file path.

func DumpSelf ¶

func DumpSelf() (int, error)

Dump the calling thread's state. This is done with a fork and SIGABRT. Only one thread will be present in the dump.

The environment variable `GOTRACEBACK` needs to be set to `crash` otherwise the Go runtime will not produce a core dump.

The ulimit for core dumps should also be set to allow them: `ulimit -u unlimited`.