* Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> From: Eugene Surovegin <surovegin@xxxxxxxxxx>
>
> Include kASLR offset in VMCOREINFO ELF notes to assist in debugging.
>
> Signed-off-by: Eugene Surovegin <surovegin@xxxxxxxxxx>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
> v2:
> - make sure "From:" got sent correctly
> ---
> arch/x86/kernel/machine_kexec_64.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c
> index 4eabc160696f..679cef0791cd 100644
> --- a/arch/x86/kernel/machine_kexec_64.c
> +++ b/arch/x86/kernel/machine_kexec_64.c
> @@ -279,5 +279,7 @@ void arch_crash_save_vmcoreinfo(void)
> VMCOREINFO_SYMBOL(node_data);
> VMCOREINFO_LENGTH(node_data, MAX_NUMNODES);
> #endif
> + vmcoreinfo_append_str("KERNELOFFSET=%lx\n",
> + (unsigned long)&_text - __START_KERNEL);
> }
I've Cc:-ed Adrian Hunter, who has sent the following kaslr fixes for
perf yesterday:
http://lkml.org/lkml/2014/1/24/220
Adrian, is this patch the right solution from the perf tooling
perspective?
Thanks,
Ingo
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