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I've just tried here, and I don't see it converting from REL to RELA. And again: Please don't top-post. By doing so you're making it harder to follow the flow of conversations. Jan > On Fri, Nov 18, 2022 at 6:34 PM Jan Beulich wrote: >> >> On 18.11.2022 11:24, 徐持恒 Xu Chiheng wrote: >>> Does that mean there is a bug in objcopy? >>> x86_64-elf-objcopy failed to correctly convert a ELF32(USE_REL, addend >>> is in section content) to ELF64(USE_RELA, addend is in relocation >>> entry) . >>> In other words, x86_64-elf-objcopy just converts a REL relocation >>> entry to a RELA relocation entry, without putting the addend in >>> section content to the new RELA relocation entry. >> >> Possible, but I can't check without knowing more details about the >> input object you did use. >> >> As an aside - please don't top-post. >> >> Jan >> >>> On Fri, Nov 18, 2022 at 6:01 PM Jan Beulich wrote: >>>> >>>> On 18.11.2022 10:37, 徐持恒 Xu Chiheng via Binutils wrote: >>>>> Sorry, but I really think this is a regression. >>>>> 64 bit linker originally could do relocation on 32 bit object code. It >>>>> worked perfectly. >>>> >>>> And it still can, provided you pass in well-formed 32-bit object files. >>>> >>>>> Setting src_mask to 0, ignores the addend value in the section content. >>>> >>>> Which is precisely what the ELF spec says the behavior is for RELA type >>>> relocations. _Not_ ignoring section contents was the bug here. >>>> >>>> You are, btw, not the first one to notice this perceived regression. But >>>> that still doesn't actually make it one. It is merely a change in >>>> behavior to fix a long-standing bug. >>>> >>>> Jan >>