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Ard Biesheuvel
b34006c425
Similar to the arm64 case, 64-bit x86 can benefit from using relative references rather than absolute ones when emitting struct jump_entry instances. Not only does this reduce the memory footprint of the entries themselves by 33%, it also removes the need for carrying relocation metadata on relocatable builds (i.e., for KASLR) which saves a fair chunk of .init space as well (although the savings are not as dramatic as on arm64) Signed-off-by: Ard Biesheuvel <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Acked-by: Peter Zijlstra (Intel) <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Arnd Bergmann <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Kees Cook <[email protected]> Cc: Will Deacon <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Jessica Yu <[email protected]> Link: https://lkml.kernel.org/r/[email protected]