----- On Jun 11, 2018, at 3:55 PM, Florian Weimer fweimer@xxxxxxxxxx wrote:
On 06/11/2018 09:49 PM, Mathieu Desnoyers wrote:
It should be noted that there can be only one rseq TLS area registered per
which can then be used by many libraries and by the executable, so this is a
process-wide (per-thread) resource that we need to manage carefully.
Is it possible to resize the area after thread creation, perhaps even
from other threads?
I'm not sure why we would want to resize it. The per-thread area is fixed-size.
Its layout is here: include/uapi/linux/rseq.h: struct rseq
The ABI is designed so that all users (program and libraries) can interact
through this per-thread TLS area.