[Crash-utility] Kernel dump file access library

Hi all, during this year's SUSE HackWeek, my colleague started work on enabling kernel core files in gdb. I realized that there would be at least four different programs implementing read access to kernel dump files: 1. the crash utility 2. makedumpfile (when re-filtering) 3. kdumpid (my project to get kernel version from a dump file) 4. gdb-kdump (started by my colleague during HackWeek) At this point, I felt that's too much re-inventing the wheel again and again, so I took my current code from kdumpid and adapted it as a library that can be used by everybody: https://github.com/ptesarik/libkdumpfile In its current shape, it's usable, but far from complete. Things that work already: - identify kdump file format - parsed meta-information from the header - open ELF, diskdump, makedumpfile, LKCD - read data by physical address (incl. Xen Dom0) - read data by Xen machine address Things still on my TODO list: - more formats: sadump, kvmdump, libvirt, xc_core, xc_save - determine phys_base in ELF files - determine kernel release if not found in headers Ideally, I would like to replace all current implementations with this library, so if a new file format appears, or a new feature is added to one of the files, it can be immediately used by all kdump-related tools. Please let me know what you think. Oh, and if you're developing such a tool, let me know which features should be added. Regards, Petr Tesarik