Date: Thu, 5 Mar 2009 19:42:11 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/amd64/amd64 fpu.c machdep.c src/sys/amd64/ia32 ia32_signal.c src/sys/amd64/include pcb.h src/sys/amd64/linux32 linux32_sysvec.c src/sys/compat/linux linux_misc.h src/sys/i386/i386 machdep.c src/sys/i386/include pcb.h ... Message-ID: <200903051943.n25Jh6jx054945@repoman.freebsd.org>
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jhb 2009-03-05 19:42:11 UTC
FreeBSD src repository
Modified files:
sys/amd64/amd64 fpu.c machdep.c
sys/amd64/ia32 ia32_signal.c
sys/amd64/include pcb.h
sys/amd64/linux32 linux32_sysvec.c
sys/compat/linux linux_misc.h
sys/i386/i386 machdep.c
sys/i386/include pcb.h
sys/i386/isa npx.c
sys/i386/linux linux_sysvec.c
Log:
SVN rev 189423 on 2009-03-05 19:42:11Z by jhb
A better fix for handling different FPU initial control words for different
ABIs:
- Store the FPU initial control word in the pcb for each thread.
- When first using the FPU, load the initial control word after restoring
the clean state if it is not the standard control word.
- Provide a correct control word for Linux/i386 binaries under
FreeBSD/amd64.
- Adjust the control word returned for fpugetregs()/npxgetregs() when a
thread hasn't used the FPU yet to reflect the real initial control
word for the current ABI.
- The Linux/i386 ABI for FreeBSD/i386 now properly sets the right control
word instead of trashing whatever the current state of the FPU is.
Reviewed by: bde
Revision Changes Path
1.163 +3 -5 src/sys/amd64/amd64/fpu.c
1.692 +2 -1 src/sys/amd64/amd64/machdep.c
1.21 +1 -0 src/sys/amd64/ia32/ia32_signal.c
1.68 +1 -0 src/sys/amd64/include/pcb.h
1.43 +1 -0 src/sys/amd64/linux32/linux32_sysvec.c
1.5 +5 -0 src/sys/compat/linux/linux_misc.h
1.677 +2 -1 src/sys/i386/i386/machdep.c
1.57 +1 -0 src/sys/i386/include/pcb.h
1.178 +11 -0 src/sys/i386/isa/npx.c
1.160 +3 -7 src/sys/i386/linux/linux_sysvec.c
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