* Noah Goldstein: > On Thu, Nov 18, 2021 at 4:17 AM Florian Weimer via Libc-alpha > <libc-alpha@xxxxxxxxxxxxxx> wrote: >> >> I would like to bring back rseq for glibc 2.35. I propose the following >> steps: >> >> 1. Enable rseq registration in glibc, for internal use only. This time, >> put the rseq area into struct pthread, not into a initial-exec TLS >> symbol. (This helps to avoid with initial-exec TLS bloat with dlopen >> and simplifies initialization somewhat.) > > Isn't THREAD_SELF also implemented in TLS? Or am I missing > something? THREAD_SELF uses a pointer in the thread control block, and that pointer is not replicated for different libc.so.6 copies with dlmopen (like the rest of the TCB and struct pthread). Thanks, Florian
