Hi Bhupesh, On 18/07/18 22:37, Bhupesh Sharma wrote: > Include KASLR offset in VMCOREINFO ELF notes to assist in debugging. > > makedumpfile user-space utility will need fixup to use this KASLR offset > to work with cases where we need to find a way to translate symbol > address from vmlinux to kernel run time address in case of KASLR boot on > arm64. You need the kernel VA for a symbol. Isn't this what kallsyms is for? | root@frikadeller:~# cat /proc/kallsyms | grep swapper_pg_dir | ffff5404610d0000 B swapper_pg_dir This is the KASLR address, the vmlinux has: | root@frikadeller:~/linux/build_arm64# nm -s vmlinux | grep swapper_pg_dir | ffff0000096d0000 B swapper_pg_dir This is in the vmcoreinfo too, so you can work if out from the vmcore too: | root@frikadeller:~# dd if=/proc/kcore bs=8K count=1 2>/dev/null | strings | | grep swapper_pg_dir | SYMBOL(swapper_pg_dir)=ffff5404610d0000 I picked swapper_pg_dir, but you could use any of the vmcore:SYMBOL() addresses to work out this offset. (you should expect the kernel to rename these symbols at a whim). Thanks, James _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
