On Mon, Apr 30, 2007 at 05:17:07PM +0200, Andi Kleen wrote: > On Monday 30 April 2007 17:12:39 Eric W. Biederman wrote: > > > > Currently because vmlinux does not reflect that the kernel is relocatable > > we still have to support CONFIG_PHYSICAL_START. So this patch adds a small > > c program to do what we cannot do with a linker script set the elf header > > type to ET_DYN. > > > > Since last time I have fixed the type to be in my code ET_DYN (oops), > > and verified this works with kexec. I realized while testing that we > > don't have anyway of identifying a kernel vmlinux as linux so we > > probably want to add an ELF note but that will be another patch. > > The patch is ok for me, but does it pass Vivek's usual testing? I am facing one issue with this patch. gdb can not analyze the resulting kernel core file. Looks like gdb treats vmlinux differently if ELF header type is "ET_DYN". It reads the symbol values incorrectly. For example, symbol value of "panic_timeout" is 0xffffffff808a1fa8 but gdb somehow things that it is 0xffffffff008aaebf. Looks like it is performing some relocation. I am using GNU gdb Red Hat Linux (6.5-5.fc6rh). Thanks Vivek
