Messages in this thread | | | Subject | Re: [PATCH v4 0/4] LoongArch: Support new relocation types | From | Youling Tang <> | Date | Mon, 1 Aug 2022 20:13:43 +0800 |
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On 08/01/2022 07:39 PM, Xi Ruoyao wrote: > On Mon, 2022-08-01 at 19:28 +0800, Youling Tang wrote: > >>> Actually, I really hope kernel image is in the XKVRANGE, rather >>> than being in XKPRANGE. So that we can limit kernel and modules >>> be in 4GB range. I think it will make all work normally. :-( >>> >> >> Assuming that the kernel and modules are limited to 4G, the external >> symbols will be accessed through pcrel32, which means that there is no >> need to pass the GOT table entry and there is no need for got support > > We'll still need to modify GCC to use PC-rel for accessing an object in > another TU (by default, or an option to control), instead of GOT. Or > just add support to GOT relocations here. But anyway it will be much > easier as we won't need to handle per-CPU variables specially. > OO, old toolchains require extra handlingg no matter how modified. Maybe rejecting old toolchain builds is a good option as Huacai said.
Youling.
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