libm_sh: Re-added sh specific files erroneously removed recently,

and moved under a better folder.

Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

libm/sh/Makefile.arch

@@ -0,0 +1,18 @@
+# Makefile for uClibc
+#
+# Copyright (c) 2007  STMicroelectronics Ltd
+#
+# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+#
+
+libm_ARCH_SRC:=$(wildcard $(libm_ARCH_fpu_DIR)/*.c)
+libm_ARCH_OBJ:=$(patsubst $(libm_ARCH_fpu_DIR)/%.c,$(libm_ARCH_fpu_OUT)/%.o,$(libm_ARCH_SRC))
+
+libm_ARCH_OBJS:=$(libm_ARCH_OBJ)
+
+ifeq ($(DOPIC),y)
+libm-a-y+=$(libm_ARCH_OBJS:.o=.os)
+else
+libm-a-y+=$(libm_ARCH_OBJS)
+endif
+libm-so-y+=$(libm_ARCH_OBJS:.o=.os)

libm/sh/feholdexcpt.c

@@ -0,0 +1,30 @@
+/*
+ *
+ * Copyright (c) 2007  STMicroelectronics Ltd
+ * Filippo Arcidiacono (filippo.arcidiacono@st.com)
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ *
+ * Taken from glibc 2.6
+ *
+ */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  unsigned long int temp;
+
+  /* Store the environment.  */
+  _FPU_GETCW (temp);
+  envp->__fpscr = temp;
+
+  /* Now set all exceptions to non-stop.  */
+  temp &= ~FE_ALL_EXCEPT;
+  _FPU_SETCW (temp);
+
+  return 1;
+}
+libm_hidden_def (feholdexcept)

libm/sh/fesetenv.c

@@ -0,0 +1,27 @@
+/*
+ *
+ * Copyright (c) 2007  STMicroelectronics Ltd
+ * Filippo Arcidiacono (filippo.arcidiacono@st.com)
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ *
+ * Taken from glibc 2.6
+ *
+ */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fesetenv (const fenv_t *envp)
+{
+  if (envp == FE_DFL_ENV)
+      _FPU_SETCW (_FPU_DEFAULT);
+  else
+    {
+      unsigned long int temp = envp->__fpscr;
+      _FPU_SETCW (temp);
+    }
+  return 0;
+}
+libm_hidden_def (fesetenv)