svn commit: r239992 - stable/9/sys/i386/i386
Konstantin Belousov
kib at FreeBSD.org
Sat Sep 1 15:50:52 UTC 2012
Author: kib
Date: Sat Sep 1 15:50:52 2012
New Revision: 239992
URL: http://svn.freebsd.org/changeset/base/239992
Log:
MFC r238675:
Force clean FPU state in PCB user FPU save area for PT_I386_{GET,SET}XMMREGS.
Modified:
stable/9/sys/i386/i386/ptrace_machdep.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/i386/i386/ptrace_machdep.c
==============================================================================
--- stable/9/sys/i386/i386/ptrace_machdep.c Sat Sep 1 14:45:15 2012 (r239991)
+++ stable/9/sys/i386/i386/ptrace_machdep.c Sat Sep 1 15:50:52 2012 (r239992)
@@ -54,10 +54,12 @@ cpu_ptrace(struct thread *td, int req, v
fpstate = &td->td_pcb->pcb_user_save.sv_xmm;
switch (req) {
case PT_GETXMMREGS:
+ npxgetregs(td);
error = copyout(fpstate, addr, sizeof(*fpstate));
break;
case PT_SETXMMREGS:
+ npxgetregs(td);
error = copyin(addr, fpstate, sizeof(*fpstate));
fpstate->sv_env.en_mxcsr &= cpu_mxcsr_mask;
break;
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