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SubjectRe: [PATCH] x86: livepatch: Treat R_X86_64_PLT32 as R_X86_64_PC32
On Fri, 15 Feb 2019, chenzefeng (A) wrote:

> On x86-64, for 32-bit PC-relacive branches, we can generate PLT32
> relocation, instead of PC32 relocation. and R_X86_64_PLT32 can be
> treated the same as R_X86_64_PC32 since linux kernel doesn't use PLT.
>
> In linux 4.4 commit b21ebf2fb4cd ("x86: Treat R_X86_64_PLT32 as
> R_X86_64_PC32") been fixed for the module loading, but not fixed for
> livepatch relocation, which will fail to load livepatch with the error
> message as follow: relocation failed for symbol <symbol name> at <symbol
> address>
>
> Signed-off-by: chenzefeng <chenzefeng2@huawei.com>

What kernel version is this patch based on? We've got rid of x86-specific
module loading stub and offloaded all the relocation handling to generic
kmod loader long time ago.

--
Jiri Kosina
SUSE Labs

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