svn commit: r190444 - in stable/7/sys: . contrib/pf dev/ath/ath_hal dev/cxgb pc98/pc98

[Takahashi Yoshihiro]

Author: nyan
Date: Thu Mar 26 17:04:08 2009
New Revision: 190444
URL: http://svn.freebsd.org/changeset/base/190444

Log:
  MFC: r189446
  
    Allow different ABIs to use different initial control words for the FPU.
  
  Approved by:	re (Kostik Belousov)

Modified:
  stable/7/sys/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)
  stable/7/sys/dev/ath/ath_hal/   (props changed)
  stable/7/sys/dev/cxgb/   (props changed)
  stable/7/sys/pc98/pc98/machdep.c

Modified: stable/7/sys/pc98/pc98/machdep.c
==============================================================================
--- stable/7/sys/pc98/pc98/machdep.c	Thu Mar 26 16:42:24 2009	(r190443)
+++ stable/7/sys/pc98/pc98/machdep.c	Thu Mar 26 17:04:08 2009	(r190444)
@@ -1155,7 +1155,7 @@ cpu_idle(void)
 void (*cpu_idle_hook)(void) = cpu_idle_default;
 
 /*
- * Clear registers on exec
+ * Reset registers to default values on exec.
  */
 void
 exec_setregs(td, entry, stack, ps_strings)
@@ -1220,6 +1220,7 @@ exec_setregs(td, entry, stack, ps_string
 	 * emulators don't provide an entry point for initialization.
 	 */
 	td->td_pcb->pcb_flags &= ~FP_SOFTFP;
+	pcb->pcb_initial_npxcw = __INITIAL_NPXCW__;
 
 	/*
 	 * Drop the FP state if we hold it, so that the process gets a