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authorJoseph Myers <joseph@codesourcery.com>2013-10-18 21:03:40 +0000
committerJoseph Myers <joseph@codesourcery.com>2013-10-18 21:04:22 +0000
commit3c8325fb47c3688cc7d9b70ada2ec71fb0eb219a (patch)
treeeb315c426bd9c1f5aa42f40f6e9e74f2d7aabcd3 /sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c
parent289528850de3c197821e0b670b23980ff8b4d538 (diff)
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Add e500 port.
Diffstat (limited to 'sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c')
-rw-r--r--sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c
new file mode 100644
index 0000000000..bfcbca2ad3
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c
@@ -0,0 +1,47 @@
+/* Store current floating-point environment.  e500 version.
+   Copyright (C) 2004-2013 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
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv_libc.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+
+int
+__fegetenv (fenv_t *envp)
+{
+  fenv_union_t u;
+  INTERNAL_SYSCALL_DECL (err);
+  int r;
+
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &u.l[0]);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return -1;
+
+  u.l[1] = fegetenv_register ();
+  *envp = u.fenv;
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fegetenv, __old_fegetenv)
+compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
+#endif
+
+versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);