[Crash-utility] [PATCH v2] x86, kaslr: export offset in VMCOREINFO ELF notes

From: Eugene Surovegin <surovegin(a)google.com&gt; Include kASLR offset in VMCOREINFO ELF notes to assist in debugging. Signed-off-by: Eugene Surovegin <surovegin(a)google.com&gt; Signed-off-by: Kees Cook <keescook(a)chromium.org&gt; --- 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); } -- 1.7.9.5 -- Kees Cook Chrome OS Security