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
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