Search notes:

arch/x86/boot/compressed/vmlinux.relocs

arch/x86/boot/compressed/vmlinux.relocs is created with the relocs tool from vmlinux: 
arch/x86/tools/relocs vmlinux > arch/x86/boot/compressed/vmlinux.relocs
arch/x86/tools/relocs --abs-relocs vmlinux
vmlinux.relocs is used to create arch/x86/boot/compressed/vmlinux.bin.gz.

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