[SCM] GNU Mach branch, master, updated. v1.8-622-g31dd30a9

[Samuel Thibault]

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- Log -----------------------------------------------------------------
commit 31dd30a94a682955c3c9e2f42252b4a07687067a
Author: Luca Dariz <luca@orpolo.org>
Date:   Wed Apr 19 21:47:03 2023 +0200

    add setting gs/fsbase
    
    * i386/i386/i386asm.sym: add offsets for asm
    * i386/i386/pcb.c: switch FSBASE/GSBASE on context switch and
      implement accessors in thread setstatus/getstatus
    * i386/i386/thread.h: add new state to thread saved state
    * kern/thread.c: add i386_FSGS_BASE_STATE handler
    * x86_64/locore.S: fix fs/gs handling, skipping the base address and
      avoid resetting it by manually re-loading fs/gs
    Message-Id: <20230419194703.410575-5-luca@orpolo.org>

-----------------------------------------------------------------------

Summary of changes:
 i386/i386/i386asm.sym |  2 ++
 i386/i386/pcb.c       | 39 ++++++++++++++++++++--
 i386/i386/thread.h    |  4 +++
 kern/thread.c         |  3 ++
 x86_64/locore.S       | 89 ++++++++++++++++++++++++++++++++++++++++-----------
 5 files changed, 116 insertions(+), 21 deletions(-)


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