tree d876c849dbae72bc7d3815b8722cca20e2ef4958
parent 1590c11381acc085db8c7e14022e66bc8670728e
author Peter Collingbourne <peter@pcc.me.uk> 1550094595 +0000
committer Peter Collingbourne <peter@pcc.me.uk> 1550094595 +0000

ELF: Allow GOT relocs pointing to non-preemptable ifunc to resolve to an IRELATIVE where possible.

Non-GOT non-PLT relocations to non-preemptible ifuncs result in the
creation of a canonical PLT, which now takes the identity of the IFUNC
in the symbol table. This (a) ensures address consistency inside and
outside the module, and (b) fixes a bug where some of these relocations
end up pointing to the resolver.

Fixes (at least) PR40474 and PR40501.

Differential Revision: https://reviews.llvm.org/D57371

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@353981 91177308-0d34-0410-b5e6-96231b3b80d8