svn commit: r238675 - head/sys/i386/i386

[Konstantin Belousov]

Author: kib
Date: Sat Jul 21 21:39:02 2012
New Revision: 238675
URL: http://svn.freebsd.org/changeset/base/238675

Log:
  MFamd64 r238669:
  Force clean FPU state in PCB user FPU save area for PT_I386_{GET,SET}XMMREGS.
  
  Reported by:	bde
  MFC after:	1 week

Modified:
  head/sys/i386/i386/ptrace_machdep.c

Modified: head/sys/i386/i386/ptrace_machdep.c
==============================================================================
--- head/sys/i386/i386/ptrace_machdep.c	Sat Jul 21 19:46:14 2012	(r238674)
+++ head/sys/i386/i386/ptrace_machdep.c	Sat Jul 21 21:39:02 2012	(r238675)
@@ -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;