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I’m debugging with the Codesourcery version of gdb for ARM (i.e. arm-none-eabi-gdb) and attempting to generate a corefile for later inspection. OpenOCD is my GDB target. All gdb tells me when I run ‘gcore’ or ‘generate-core-file’ is “Can’t create corefile”. Any suggestions? In general is it possible to do a core dump with a remote target?
It doesn’t seem possible yet, but there is some promising discussion on the GDB mailing list
here and here. As an alternative maybe you could try the following?
where you fill in start_addr and end_addr appropriately. You’d have to save registers by hand.