diff options
| author | Eugene Surovegin <surovegin@google.com> | 2014-01-23 09:31:20 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-02-25 16:57:47 -0800 |
| commit | b6085a865762236bb84934161273cdac6dd11c2d (patch) | |
| tree | eb89b4e11b14dd3270cfc42faeefe4fb4719de90 /arch/x86 | |
| parent | cfbf8d4857c26a8a307fb7cd258074c9dcd8c691 (diff) | |
x86, kaslr: export offset in VMCOREINFO ELF notes
Include kASLR offset in VMCOREINFO ELF notes to assist in debugging.
[ hpa: pushing this for v3.14 to avoid having a kernel version with
kASLR where we can't debug output. ]
Signed-off-by: Eugene Surovegin <surovegin@google.com>
Link: http://lkml.kernel.org/r/20140123173120.GA25474@www.outflux.net
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/machine_kexec_64.c | 2 |
1 files changed, 2 insertions, 0 deletions
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); } |