https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66034
Bug ID: 66034
Summary: Enhancement request: fiber-local storage
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: a...@cloudius-systems.com
Target Milestone: ---
As a complement to __thread and thread_local, add __fiber storage class which
is local storage for user-level threads. User-level threads is a common
technique in high performance storage, and compiler support would be
beneficial.
On x86_64, __fiber storage can be accessed via gs:, which can be set (on newer
processors) via set setgsbase instruction in userspace.
