do_coredump (elf_core_dump) and vm_file

[Sudharsan Vijayaraghavan]

Hi,

I had to debug a coredump for a user process.
I found the entire /proc/<pid>/maps data in core file, except the file
names (vma->vm_file) as part of core generated.

I was surprised to see this vma->vm_file is not dumped into core.
Infact this is very much needed to debug cores.

Why is that vma->vm_file not dumped into coredump?

Any inputs will be of great help

Thanks,
Sudharsan