CVS commit: syssrc [netbsd-1-5]

[Havard Eidnes <he%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   he
Date:           Sun Jun 17 22:27:13 UTC 2001

Modified Files:
        syssrc/sys/arch/i386/include [netbsd-1-5]: db_machdep.h

Log Message:
Pull up revision 1.17 (requested by sommerfeld):
  Add %fs/%gs to trap frame and save/restore them on trap/interupt/
  syscall entry from userspace.

  Remove special-case ``by hand'' validation of %fs/%gs register
  values s well as special handling of them in various signal
  handling paths.  Now, like %ds and %es, they are validated by
  the hardware on return to userland.

  This paves the way for the use of %fs for per-cpu data on multi-
  processor systems, and fixes an otherwise difficult-to-fix
  interaction between threads/clone(2) and USER_LDT.


To generate a diff of this commit:
cvs rdiff -r1.14 -r1.14.22.1 syssrc/sys/arch/i386/include/db_machdep.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.