Set SH fpcsr register which read again.

3 files changed, 14 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 092756e6f7..9c9947984f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2012-04-05  Nobuhiro Iwamatsu  <iwamatsu@nigauri.org>
 
+	* sysdeps/sh/sh4/fpu/fegetenv.c (fegetenv): Set fpscr register which
+	read again.
+	* sysdeps/sh/sh4/fpu/ftestexcept.c: Likewise.
+
+2012-04-05  Nobuhiro Iwamatsu  <iwamatsu@nigauri.org>
+
 	* sysdeps/sh/sh4/fpu/fraiseexcpt.c (feraiseexcept): Produce
 	an exception using FPU order intentionally.
 
diff --git a/sysdeps/sh/sh4/fpu/fegetenv.c b/sysdeps/sh/sh4/fpu/fegetenv.c
index 68687dc2d1..3103316e34 100644
--- a/sysdeps/sh/sh4/fpu/fegetenv.c
+++ b/sysdeps/sh/sh4/fpu/fegetenv.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment.
-   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1997, 1998, 1999, 2000, 2012 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -24,6 +24,10 @@ fegetenv (fenv_t *envp)
 {
   unsigned long int temp;
   _FPU_GETCW (temp);
+  /* When read fpscr, this was initialized.
+     We need to rewrite value of temp. */
+  _FPU_SETCW (temp);
+
   envp->__fpscr = temp;
 
   return 0;
diff --git a/sysdeps/sh/sh4/fpu/ftestexcept.c b/sysdeps/sh/sh4/fpu/ftestexcept.c
index 9e0bfc5c27..c2e1772a91 100644
--- a/sysdeps/sh/sh4/fpu/ftestexcept.c
+++ b/sysdeps/sh/sh4/fpu/ftestexcept.c
@@ -26,6 +26,9 @@ fetestexcept (int excepts)
 
   /* Get current exceptions.  */
   _FPU_GETCW (temp);
+  /* When read fpscr, this was initialized.
+     We need to rewrite value of temp. */
+  _FPU_SETCW (temp);
 
   return temp & excepts & FE_ALL_EXCEPT;
 }