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powerpc/fsl_booke/kaslr: export offset in VMCOREINFO ELF notes 

Like all other architectures such as x86 or arm64, include KASLR offset
in VMCOREINFO ELF notes to assist in debugging. After this, we can use
crash --kaslr option to parse vmcore generated from a kaslr kernel.

Note: The crash tool needs to support --kaslr too.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Scott Wood <oss@buserror.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
alistair/sunxi64-5.5-dsi
Jason Yan 2019-09-20 17:45:45 +08:00 committed by Michael Ellerman
parent 921a79b780
commit 74277f00b2
1 changed files with 1 additions and 0 deletions
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arch/powerpc/kernel/machine_kexec.c
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@ -86,6 +86,7 @@ void arch_crash_save_vmcoreinfo(void)
VMCOREINFO_STRUCT_SIZE(mmu_psize_def);
VMCOREINFO_OFFSET(mmu_psize_def, shift);
#endif
vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
}
/*