Re: [Crash-utility] how to use crash utility to parse the binary memory dump

----- Original Message ----- Since these raw DDR dumps seem to be an existing feature, it certainly seems worth implementing support for them. I'm curious as to how these RAM dumps are currently used -- are there other tools that use them somehow? Are these DDR RAM dumps specific to embedded 32-bit ARM machines? Your feature sounds like a two-stage process: (1) invoke crash utility -- passing it the base physical address of the contiguous RAM dump, and the RAM dump file name(s) -- and then crash creates a single ELF vmcore by pre-pending an ELF header and concatenating the dump file names. (2) invoke crash utility with vmlinux and newly-created vmcore. But you mention "generate object files" above. Do you generate more than one file? Is the newly-created vmcore subsequently recognized as a netdump or kdump ELF vmcore? (i.e, handled by existing code in netdump.c) Or does it create a new ELF-like dumpfile type that is handled in your new ramdump.c file? Could it be done in one step? In other words, something like: $ crash vmlinux --ddr 80000000 ddr1.bin [ddr2.bin ...] where there would be a "virtual" ELF header created that could be used during the crash session? (perhaps with an optional "-o outputfile" command line option to create/save it as an ELF vmcore) Dave