On 5/17/19 2:51 PM, Tom Horsley wrote: > I'm trying (for reason too complex to go into) to > locate the TLS offset of the tcache_shutting_down > variable from malloc in the ubuntu provided > glibc on aarch64 ubuntu 18.04. > > Various "normal" TLS variables appear to operate > much like x86_64 with a GOT table entry where the > TLS offset of the variable gets stashed. > > But in the ubuntu glibc there is no GOT entry for > that variable, and disassembly of the code shows > that it seems to "just know" the offset to use. > > Is there some kind of magic TLS optimization that > can happen for certain variables on aarch64? I'm trying > to understand how it could know the offset like > it appears to do in the code.
https://www.fsfla.org/~lxoliva/writeups/TLS/paper-lk2006.pdf -- Andrew Haley Java Platform Lead Engineer Red Hat UK Ltd. <https://www.redhat.com> https://keybase.io/andrewhaley EAC8 43EB D3EF DB98 CC77 2FAD A5CD 6035 332F A671
