objtool: Cache instruction relocs
Track the reloc of instructions in the new instruction->reloc field to avoid having to look them up again later. ( Technically x86 instructions can have two relocations, but not jumps and calls, for which we're using this. ) Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: NBorislav Petkov <bp@suse.de> Signed-off-by: NIngo Molnar <mingo@kernel.org> Reviewed-by: NMiroslav Benes <mbenes@suse.cz> Link: https://lkml.kernel.org/r/20210326151300.195441549@infradead.org
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