On Wed, Jan 10, 2018 at 01:11:48PM -0800, Linus Torvalds wrote: > On Wed, Jan 10, 2018 at 1:08 PM, David Woodhouse <[email protected]> wrote: > > > > There are a few of the form 'call *somefunc'. > > > > The existing code handles them not by virtue of the relocs, as I said, > > but by a simple delta of the old and new location of the instruction. > > > > But it only does so for the *first* instruction of the altinstr, if it > > happens to be a (4-byte?) branch. > > Ugh. That's nasty. > > Wouldn't it be much better to simply do it as part of relocation instead?
Not possible, the relocations are applied during vmlinux linking. -- Josh
