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[thirdparty/glibc.git] / sysdeps / alpha / fpu / fesetenv.c

diff --git a/sysdeps/alpha/fpu/fesetenv.c b/sysdeps/alpha/fpu/fesetenv.c
index 3692967a5b3cfa4cb0d78d987a9d4065f4cd261d..acd4acd320f59e08cbda1c3adf1e7a80c59ee5fe 100644 (file)
--- a/sysdeps/alpha/fpu/fesetenv.c
+++ b/sysdeps/alpha/fpu/fesetenv.c
@@ -1,45 +1,57 @@
 /* Install given floating-point environment.
-   Copyright (C) 1997 Free Software Foundation, Inc.
+   Copyright (C) 1997-2019 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Richard Henderson <rth@tamu.edu>, 1997
 
    The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
 
    The GNU C Library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+   Lesser General Public License for more details.
 
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
 
-#include <fenv.h>
+#include <fenv_libc.h>
 
-void
-fesetenv (const fenv_t *envp)
+int
+__fesetenv (const fenv_t *envp)
 {
-  unsigned long fpcr;
+  unsigned long int fpcr;
   fenv_t env;
 
   /* Magic encoding of default values: high bit set (never possible for a
      user-space address) is not indirect.  And we don't even have to get
      rid of it since we mask things around just below.  */
-  if ((long)envp >= 0)
+  if ((long int) envp >= 0)
     env = *envp;
   else
-    env = (unsigned long)envp;
+    env = (unsigned long int) envp;
 
   /* Reset the rounding mode with the hardware fpcr.  Note that the following
      system call is an implied trap barrier for our modification.  */
-  __asm__ __volatile__("excb; mf_fpcr %0" : "=f"(fpcr));
-  fpcr = (fpcr & ~(3UL << 58)) | (env & (3UL << 58));
-  __asm__ __volatile__("mt_fpcr %0" : : "f"(fpcr));
+  __asm__ __volatile__ ("excb; mf_fpcr %0" : "=f" (fpcr));
+  fpcr = (fpcr & ~FPCR_ROUND_MASK) | (env & FPCR_ROUND_MASK);
+  __asm__ __volatile__ ("mt_fpcr %0" : : "f" (fpcr));
 
   /* Reset the exception status and mask with the kernel's FP code.  */
-  __ieee_set_fp_control(env & (FE_ALL_EXCEPT | 0x3e));
+  __ieee_set_fp_control (env & SWCR_ALL_MASK);
+
+  /* Success.  */
+  return 0;
 }
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fesetenv, __old_fesetenv)
+compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
+#endif
+
+libm_hidden_def (__fesetenv)
+libm_hidden_ver (__fesetenv, fesetenv)
+versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);