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GNU C Library master sources branch, master, updated. glibc-2.15-545-g15a946b
- From: kkojima at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 5 Apr 2012 02:50:32 -0000
- Subject: GNU C Library master sources branch, master, updated. glibc-2.15-545-g15a946b
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http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=15a946b57a1e7f4ba95b63572062860ca1a5e58f
commit 15a946b57a1e7f4ba95b63572062860ca1a5e58f
Author: Kaz Kojima <kkojima@rr.iij4u.or.jp>
Date: Thu Apr 5 11:43:30 2012 +0900
Add support fedisableexcept, feenableexcept, fegetexcept and feupdateenv
for SH.
diff --git a/sysdeps/sh/sh4/fpu/fedisblxcpt.c b/sysdeps/sh/sh4/fpu/fedisblxcpt.c
new file mode 100644
index 0000000..029fcc3
--- /dev/null
+++ b/sysdeps/sh/sh4/fpu/fedisblxcpt.c
@@ -0,0 +1,39 @@
+/* Disable floating-point exceptions.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
+
+ 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
+fedisableexcept (int excepts)
+{
+ unsigned int temp, old_exc;
+
+ /* Get the current control register contents. */
+ _FPU_GETCW (temp);
+
+ old_exc = (temp >> 5) & FE_ALL_EXCEPT;
+
+ excepts &= FE_ALL_EXCEPT;
+
+ temp &= ~(excepts << 5);
+ _FPU_SETCW (temp);
+
+ return old_exc;
+}
diff --git a/sysdeps/sh/sh4/fpu/feenablxcpt.c b/sysdeps/sh/sh4/fpu/feenablxcpt.c
new file mode 100644
index 0000000..93fa749
--- /dev/null
+++ b/sysdeps/sh/sh4/fpu/feenablxcpt.c
@@ -0,0 +1,38 @@
+/* Enable floating-point exceptions.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
+
+ 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
+feenableexcept (int excepts)
+{
+ unsigned int temp, old_flag;
+
+ /* Get current exceptions. */
+ _FPU_GETCW (temp);
+
+ old_flag = (temp >> 5) & FE_ALL_EXCEPT;
+ excepts &= FE_ALL_EXCEPT;
+
+ temp |= excepts << 5;
+ _FPU_SETCW (temp);
+
+ return old_flag;
+}
diff --git a/sysdeps/sh/sh4/fpu/fegetexcept.c b/sysdeps/sh/sh4/fpu/fegetexcept.c
new file mode 100644
index 0000000..a849a17
--- /dev/null
+++ b/sysdeps/sh/sh4/fpu/fegetexcept.c
@@ -0,0 +1,35 @@
+/* Get enabled floating-point exceptions.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
+
+ 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
+fegetexcept (void)
+{
+ unsigned int temp;
+
+ /* Get current exceptions. */
+ _FPU_GETCW (temp);
+ /* When read fpscr, this was initialized.
+ We need to rewrite value of temp. */
+ _FPU_SETCW (temp);
+
+ return (temp >> 5) & FE_ALL_EXCEPT;
+}
diff --git a/sysdeps/sh/sh4/fpu/feupdateenv.c b/sysdeps/sh/sh4/fpu/feupdateenv.c
new file mode 100644
index 0000000..96a6979
--- /dev/null
+++ b/sysdeps/sh/sh4/fpu/feupdateenv.c
@@ -0,0 +1,39 @@
+/* Install given floating-point environment and raise exceptions.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
+
+ 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
+feupdateenv (const fenv_t *envp)
+{
+ unsigned int temp;
+
+ _FPU_GETCW (temp);
+ temp = (temp & FE_ALL_EXCEPT);
+
+ /* Raise the saved exception. Incidently for us the implementation
+ defined format of the values in objects of type fexcept_t is the
+ same as the ones specified using the FE_* constants. */
+ fesetenv (envp);
+ feraiseexcept ((int) temp);
+
+ return 0;
+}
+libm_hidden_def (feupdateenv)
-----------------------------------------------------------------------
Summary of changes:
sysdeps/sh/sh4/fpu/fedisblxcpt.c | 39 ++++++++++++++++++++++++++++++++++++++
sysdeps/sh/sh4/fpu/feenablxcpt.c | 38 +++++++++++++++++++++++++++++++++++++
sysdeps/sh/sh4/fpu/fegetexcept.c | 35 ++++++++++++++++++++++++++++++++++
sysdeps/sh/sh4/fpu/feupdateenv.c | 39 ++++++++++++++++++++++++++++++++++++++
4 files changed, 151 insertions(+), 0 deletions(-)
create mode 100644 sysdeps/sh/sh4/fpu/fedisblxcpt.c
create mode 100644 sysdeps/sh/sh4/fpu/feenablxcpt.c
create mode 100644 sysdeps/sh/sh4/fpu/fegetexcept.c
create mode 100644 sysdeps/sh/sh4/fpu/feupdateenv.c
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