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authorJoseph Myers <joseph@codesourcery.com>2016-09-07 16:41:20 +0000
committerJoseph Myers <joseph@codesourcery.com>2016-09-07 16:41:20 +0000
commit1396c647a9391c067fdeb6aa78c1c1f4ddc513bd (patch)
tree95e7f6b2b292b5d5feecfe1bb6848cc345d86fde /sysdeps/aarch64
parentec94343f592df68ba1ba49bb2c558f7d2629387c (diff)
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Add femode_t functions: aarch64.
This patch adds AArch64 versions of fegetmode and fesetmode.
Untested.

	* sysdeps/aarch64/fpu/fegetmode.c: New file.
	* sysdeps/aarch64/fpu/fesetmode.c: Likewise.
Diffstat (limited to 'sysdeps/aarch64')
-rw-r--r--sysdeps/aarch64/fpu/fegetmode.c27
-rw-r--r--sysdeps/aarch64/fpu/fesetmode.c34
2 files changed, 61 insertions, 0 deletions
diff --git a/sysdeps/aarch64/fpu/fegetmode.c b/sysdeps/aarch64/fpu/fegetmode.c
new file mode 100644
index 0000000000..7e76acf05d
--- /dev/null
+++ b/sysdeps/aarch64/fpu/fegetmode.c
@@ -0,0 +1,27 @@
+/* Store current floating-point control modes.  AArch64 version.
+   Copyright (C) 2016 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.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+  _FPU_GETCW (*modep);
+  return 0;
+}
diff --git a/sysdeps/aarch64/fpu/fesetmode.c b/sysdeps/aarch64/fpu/fesetmode.c
new file mode 100644
index 0000000000..d1b653ee07
--- /dev/null
+++ b/sysdeps/aarch64/fpu/fesetmode.c
@@ -0,0 +1,34 @@
+/* Install given floating-point control modes.  AArch64 version.
+   Copyright (C) 2016 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.h>
+#include <fpu_control.h>
+
+int
+fesetmode (const femode_t *modep)
+{
+  fpu_control_t fpcr, fpcr_new;
+  _FPU_GETCW (fpcr);
+  if (modep == FE_DFL_MODE)
+    fpcr_new = (fpcr & _FPU_RESERVED) | _FPU_DEFAULT;
+  else
+    fpcr_new = *modep;
+  if (fpcr != fpcr_new)
+    _FPU_SETCW (fpcr_new);
+  return 0;
+}