Date: Wed, 30 Jul 2008 11:30:55 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/amd64/amd64 cpu_switch.S genassym.c src/sys/amd64/ia32 ia32_signal.c src/sys/amd64/include pcb.h src/sys/amd64/linux32 linux32_machdep.c Message-ID: <200807301819.m6UIJalh003655@repoman.freebsd.org>
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kib 2008-07-30 11:30:55 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 cpu_switch.S genassym.c
sys/amd64/ia32 ia32_signal.c
sys/amd64/include pcb.h
sys/amd64/linux32 linux32_machdep.c
Log:
SVN rev 180992 on 2008-07-30 11:30:55Z by kib
Bring back the save/restore of the %ds, %es, %fs and %gs registers for
the 32bit images on amd64.
Change the semantic of the PCB_32BIT pcb flag to request the context
switch code to operate on the segment registers. Its previous meaning
of saving or restoring the %gs base offset is assigned to the new
PCB_GS32BIT flag.
FreeBSD 32bit image activator sets the PCB_32BIT flag, while Linux 32bit
emulation sets PCB_32BIT | PCB_GS32BIT.
Reviewed by: peter
MFC after: 2 weeks
Revision Changes Path
1.162 +29 -18 src/sys/amd64/amd64/cpu_switch.S
1.169 +1 -0 src/sys/amd64/amd64/genassym.c
1.18 +1 -1 src/sys/amd64/ia32/ia32_signal.c
1.65 +1 -0 src/sys/amd64/include/pcb.h
1.47 +1 -1 src/sys/amd64/linux32/linux32_machdep.c
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