David Edelsohn <dje....@gmail.com> writes: > I have been working to enable native thread-local storage on AIX. One > problem I encountered is the AIX assembler has difficulty with the > anchor symbol for TLS CSECTs. While the section anchors machinery > uses a separate pool for TLS entries, should section anchor blocks be > used for TLS symbols at all? > > powerpc-linux uses GOT annotations directly and never places TLS > symbols in the TOC at all. Section anchors seem to be avoided by TLS > code already. The appended patch rejects TLS symbols for object > blocks in general. I could add a target hook, but I wanted to propose > this policy in general before pursing a target-specific hook.
Yeah, TLS anchors "work" on mips64-linux-gnu, although admittedly section anchors aren't yet enabled by default there, so perhaps not many people have tried it. A use_blocks_for_decl_p hook sounds good, and fits nicely with targetm.use_blocks_for_constant_p. Thanks, Richard
