fenv support arm

Signed-off-by: Eshan dhawan <eshandhawan51@gmail.com>

17 files changed, 608 insertions, 3 deletions

diff --git a/newlib/libm/machine/arm/Makefile.am b/newlib/libm/machine/arm/Makefile.am
index 1f10a7a40..a64ee59d5 100644
--- a/newlib/libm/machine/arm/Makefile.am
+++ b/newlib/libm/machine/arm/Makefile.am
@@ -19,7 +19,23 @@ LIB_SOURCES = \
 	sf_nearbyint.c \
 	sf_rint.c \
 	sf_round.c \
-	sf_trunc.c
+	sf_trunc.c \
+	feclearexcept.c \
+	fe_dfl_env.c\
+	fegetenv.c \
+	fegetexceptflag.c \
+	fegetround.c \
+	feholdexcept.c \
+	fenv.c \
+	feraiseexcept.c \
+	fesetenv.c \
+	fesetexceptflag.c \
+	fesetround.c \
+	fetestexcept.c \
+	feupdateenv.c \
+	fenv-vfp.c \
+	fenv-softfp.c 
+
 
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = $(LIB_SOURCES)
diff --git a/newlib/libm/machine/arm/Makefile.in b/newlib/libm/machine/arm/Makefile.in
index 0a5a27327..ecfa684e7 100644
--- a/newlib/libm/machine/arm/Makefile.in
+++ b/newlib/libm/machine/arm/Makefile.in
@@ -76,7 +76,15 @@ am__objects_1 = lib_a-e_sqrt.$(OBJEXT) lib_a-ef_sqrt.$(OBJEXT) \
 	lib_a-s_round.$(OBJEXT) lib_a-s_trunc.$(OBJEXT) \
 	lib_a-sf_ceil.$(OBJEXT) lib_a-sf_floor.$(OBJEXT) \
 	lib_a-sf_nearbyint.$(OBJEXT) lib_a-sf_rint.$(OBJEXT) \
-	lib_a-sf_round.$(OBJEXT) lib_a-sf_trunc.$(OBJEXT)
+	lib_a-sf_round.$(OBJEXT) lib_a-sf_trunc.$(OBJEXT) \
+	lib_a-feclearexcept.$(OBJEXT) lib_a-fe_dfl_env.$(OBJEXT) \
+	lib_a-fegetenv.$(OBJEXT) lib_a-fegetexceptflag.$(OBJEXT) \
+	lib_a-fegetround.$(OBJEXT) lib_a-feholdexcept.$(OBJEXT) \
+	lib_a-fenv.$(OBJEXT) lib_a-feraiseexcept.$(OBJEXT) \
+	lib_a-fesetenv.$(OBJEXT) lib_a-fesetexceptflag.$(OBJEXT) \
+	lib_a-fesetround.$(OBJEXT) lib_a-fetestexcept.$(OBJEXT) \
+	lib_a-feupdateenv.$(OBJEXT) lib_a-fenv-vfp.$(OBJEXT) \
+	lib_a-fenv-softfp.$(OBJEXT)
 am_lib_a_OBJECTS = $(am__objects_1)
 lib_a_OBJECTS = $(am_lib_a_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@
@@ -216,7 +224,22 @@ LIB_SOURCES = \
 	sf_nearbyint.c \
 	sf_rint.c \
 	sf_round.c \
-	sf_trunc.c
+	sf_trunc.c \
+	feclearexcept.c \
+	fe_dfl_env.c\
+	fegetenv.c \
+	fegetexceptflag.c \
+	fegetround.c \
+	feholdexcept.c \
+	fenv.c \
+	feraiseexcept.c \
+	fesetenv.c \
+	fesetexceptflag.c \
+	fesetround.c \
+	fetestexcept.c \
+	feupdateenv.c \
+	fenv-vfp.c \
+	fenv-softfp.c 
 
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = $(LIB_SOURCES)
@@ -378,6 +401,96 @@ lib_a-sf_trunc.o: sf_trunc.c
 lib_a-sf_trunc.obj: sf_trunc.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-sf_trunc.obj `if test -f 'sf_trunc.c'; then $(CYGPATH_W) 'sf_trunc.c'; else $(CYGPATH_W) '$(srcdir)/sf_trunc.c'; fi`
 
+lib_a-feclearexcept.o: feclearexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feclearexcept.o `test -f 'feclearexcept.c' || echo '$(srcdir)/'`feclearexcept.c
+
+lib_a-feclearexcept.obj: feclearexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feclearexcept.obj `if test -f 'feclearexcept.c'; then $(CYGPATH_W) 'feclearexcept.c'; else $(CYGPATH_W) '$(srcdir)/feclearexcept.c'; fi`
+
+lib_a-fe_dfl_env.o: fe_dfl_env.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fe_dfl_env.o `test -f 'fe_dfl_env.c' || echo '$(srcdir)/'`fe_dfl_env.c
+
+lib_a-fe_dfl_env.obj: fe_dfl_env.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fe_dfl_env.obj `if test -f 'fe_dfl_env.c'; then $(CYGPATH_W) 'fe_dfl_env.c'; else $(CYGPATH_W) '$(srcdir)/fe_dfl_env.c'; fi`
+
+lib_a-fegetenv.o: fegetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetenv.o `test -f 'fegetenv.c' || echo '$(srcdir)/'`fegetenv.c
+
+lib_a-fegetenv.obj: fegetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetenv.obj `if test -f 'fegetenv.c'; then $(CYGPATH_W) 'fegetenv.c'; else $(CYGPATH_W) '$(srcdir)/fegetenv.c'; fi`
+
+lib_a-fegetexceptflag.o: fegetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetexceptflag.o `test -f 'fegetexceptflag.c' || echo '$(srcdir)/'`fegetexceptflag.c
+
+lib_a-fegetexceptflag.obj: fegetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetexceptflag.obj `if test -f 'fegetexceptflag.c'; then $(CYGPATH_W) 'fegetexceptflag.c'; else $(CYGPATH_W) '$(srcdir)/fegetexceptflag.c'; fi`
+
+lib_a-fegetround.o: fegetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetround.o `test -f 'fegetround.c' || echo '$(srcdir)/'`fegetround.c
+
+lib_a-fegetround.obj: fegetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fegetround.obj `if test -f 'fegetround.c'; then $(CYGPATH_W) 'fegetround.c'; else $(CYGPATH_W) '$(srcdir)/fegetround.c'; fi`
+
+lib_a-feholdexcept.o: feholdexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feholdexcept.o `test -f 'feholdexcept.c' || echo '$(srcdir)/'`feholdexcept.c
+
+lib_a-feholdexcept.obj: feholdexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feholdexcept.obj `if test -f 'feholdexcept.c'; then $(CYGPATH_W) 'feholdexcept.c'; else $(CYGPATH_W) '$(srcdir)/feholdexcept.c'; fi`
+
+lib_a-fenv.o: fenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv.o `test -f 'fenv.c' || echo '$(srcdir)/'`fenv.c
+
+lib_a-fenv.obj: fenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv.obj `if test -f 'fenv.c'; then $(CYGPATH_W) 'fenv.c'; else $(CYGPATH_W) '$(srcdir)/fenv.c'; fi`
+
+lib_a-feraiseexcept.o: feraiseexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feraiseexcept.o `test -f 'feraiseexcept.c' || echo '$(srcdir)/'`feraiseexcept.c
+
+lib_a-feraiseexcept.obj: feraiseexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feraiseexcept.obj `if test -f 'feraiseexcept.c'; then $(CYGPATH_W) 'feraiseexcept.c'; else $(CYGPATH_W) '$(srcdir)/feraiseexcept.c'; fi`
+
+lib_a-fesetenv.o: fesetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetenv.o `test -f 'fesetenv.c' || echo '$(srcdir)/'`fesetenv.c
+
+lib_a-fesetenv.obj: fesetenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetenv.obj `if test -f 'fesetenv.c'; then $(CYGPATH_W) 'fesetenv.c'; else $(CYGPATH_W) '$(srcdir)/fesetenv.c'; fi`
+
+lib_a-fesetexceptflag.o: fesetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetexceptflag.o `test -f 'fesetexceptflag.c' || echo '$(srcdir)/'`fesetexceptflag.c
+
+lib_a-fesetexceptflag.obj: fesetexceptflag.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetexceptflag.obj `if test -f 'fesetexceptflag.c'; then $(CYGPATH_W) 'fesetexceptflag.c'; else $(CYGPATH_W) '$(srcdir)/fesetexceptflag.c'; fi`
+
+lib_a-fesetround.o: fesetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetround.o `test -f 'fesetround.c' || echo '$(srcdir)/'`fesetround.c
+
+lib_a-fesetround.obj: fesetround.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fesetround.obj `if test -f 'fesetround.c'; then $(CYGPATH_W) 'fesetround.c'; else $(CYGPATH_W) '$(srcdir)/fesetround.c'; fi`
+
+lib_a-fetestexcept.o: fetestexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fetestexcept.o `test -f 'fetestexcept.c' || echo '$(srcdir)/'`fetestexcept.c
+
+lib_a-fetestexcept.obj: fetestexcept.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fetestexcept.obj `if test -f 'fetestexcept.c'; then $(CYGPATH_W) 'fetestexcept.c'; else $(CYGPATH_W) '$(srcdir)/fetestexcept.c'; fi`
+
+lib_a-feupdateenv.o: feupdateenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.o `test -f 'feupdateenv.c' || echo '$(srcdir)/'`feupdateenv.c
+
+lib_a-feupdateenv.obj: feupdateenv.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-feupdateenv.obj `if test -f 'feupdateenv.c'; then $(CYGPATH_W) 'feupdateenv.c'; else $(CYGPATH_W) '$(srcdir)/feupdateenv.c'; fi`
+
+lib_a-fenv-vfp.o: fenv-vfp.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-vfp.o `test -f 'fenv-vfp.c' || echo '$(srcdir)/'`fenv-vfp.c
+
+lib_a-fenv-vfp.obj: fenv-vfp.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-vfp.obj `if test -f 'fenv-vfp.c'; then $(CYGPATH_W) 'fenv-vfp.c'; else $(CYGPATH_W) '$(srcdir)/fenv-vfp.c'; fi`
+
+lib_a-fenv-softfp.o: fenv-softfp.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-softfp.o `test -f 'fenv-softfp.c' || echo '$(srcdir)/'`fenv-softfp.c
+
+lib_a-fenv-softfp.obj: fenv-softfp.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-fenv-softfp.obj `if test -f 'fenv-softfp.c'; then $(CYGPATH_W) 'fenv-softfp.c'; else $(CYGPATH_W) '$(srcdir)/fenv-softfp.c'; fi`
+
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
diff --git a/newlib/libm/machine/arm/fe_dfl_env.c b/newlib/libm/machine/arm/fe_dfl_env.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fe_dfl_env.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/feclearexcept.c b/newlib/libm/machine/arm/feclearexcept.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/feclearexcept.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fegetenv.c b/newlib/libm/machine/arm/fegetenv.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fegetenv.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fegetexceptflag.c b/newlib/libm/machine/arm/fegetexceptflag.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fegetexceptflag.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fegetround.c b/newlib/libm/machine/arm/fegetround.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fegetround.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/feholdexcept.c b/newlib/libm/machine/arm/feholdexcept.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/feholdexcept.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fenv-softfp.c b/newlib/libm/machine/arm/fenv-softfp.c
new file mode 100644
index 000000000..a576cc1b2
--- /dev/null
+++ b/newlib/libm/machine/arm/fenv-softfp.c
@@ -0,0 +1,32 @@
+/*-
+ * Copyright (c) 2013 Andrew Turner <andrew@FreeBSD.ORG>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#define	FENV_MANGLE(x)	__softfp_ ##x
+#include <machine/fenv-mangle.h>
+#include "fenv.c"
+
diff --git a/newlib/libm/machine/arm/fenv-vfp.c b/newlib/libm/machine/arm/fenv-vfp.c
new file mode 100644
index 000000000..297e81296
--- /dev/null
+++ b/newlib/libm/machine/arm/fenv-vfp.c
@@ -0,0 +1,32 @@
+/*-
+ * Copyright (c) 2013 Andrew Turner <andrew@FreeBSD.ORG>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#define	FENV_MANGLE(x)	__vfp_ ##x
+#include <machine/fenv-mangle.h>
+#include "fenv.c"
+
diff --git a/newlib/libm/machine/arm/fenv.c b/newlib/libm/machine/arm/fenv.c
new file mode 100644
index 000000000..5b61ab81f
--- /dev/null
+++ b/newlib/libm/machine/arm/fenv.c
@@ -0,0 +1,328 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
+ * Copyright (c) 2013 Andrew Turner <andrew@FreeBSD.ORG>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#define	__fenv_static
+#include <fenv.h>
+
+#include <machine/acle-compat.h>
+
+#if __ARM_ARCH >= 6
+#define FENV_ARMv6
+#endif
+
+/* When SOFTFP_ABI is defined we are using the softfp ABI. */
+#if defined(__VFP_FP__) && !defined(__ARM_PCS_VFP)
+#define SOFTFP_ABI
+#endif
+
+
+#ifndef FENV_MANGLE
+/*
+ * Hopefully the system ID byte is immutable, so it's valid to use
+ * this as a default environment.
+ */
+fenv_t __fe_dfl_env = { 0 };
+
+const fenv_t *_fe_dfl_env = &__fe_dfl_env;
+#endif
+
+
+/* If this is a non-mangled softfp version special processing is required */
+#if defined(FENV_MANGLE) || !defined(SOFTFP_ABI) || !defined(FENV_ARMv6)
+
+/*
+ * The following macros map between the softfloat emulator's flags and
+ * the hardware's FPSR.  The hardware this file was written for doesn't
+ * have rounding control bits, so we stick those in the system ID byte.
+ */
+#ifndef __ARM_PCS_VFP
+#define	__set_env(env, flags, mask, rnd) env = ((flags)			\
+						| (mask)<<_FPUSW_SHIFT	\
+						| (rnd) << 24)
+#define	__env_flags(env)		((env) & FE_ALL_EXCEPT)
+#define	__env_mask(env)			(((env) >> _FPUSW_SHIFT)	\
+						& FE_ALL_EXCEPT)
+#define	__env_round(env)		(((env) >> 24) & _ROUND_MASK)
+
+#include <machine/fenv-softfloat.h>
+
+#else /* __ARM_PCS_VFP PRESENT */
+
+#include <machine/fenv-vfp.h>
+
+#endif /* __ARM_PCS_VFP */
+
+#ifdef __GNUC_GNU_INLINE__
+#error "This file must be compiled with C99 'inline' semantics"
+#endif
+
+extern inline int feclearexcept(int excepts);
+extern inline int fegetexceptflag(fexcept_t *flagp, int excepts);
+extern inline int fesetexceptflag(const fexcept_t *flagp, int excepts);
+extern inline int feraiseexcept(int excepts);
+extern inline int fetestexcept(int excepts);
+extern inline int fegetround(void);
+extern inline int fesetround(int round);
+extern inline int fegetenv(fenv_t *envp);
+extern inline int feholdexcept(fenv_t *envp);
+extern inline int fesetenv(const fenv_t *envp);
+extern inline int feupdateenv(const fenv_t *envp);
+extern inline int feenableexcept(int __mask);
+extern inline int fedisableexcept(int __mask);
+extern inline int fegetexcept(void);
+
+#else /* !FENV_MANGLE && SOFTFP_ABI */
+/* Set by libc when the VFP unit is enabled */
+
+int _libc_arm_fpu_present;
+
+int __softfp_feclearexcept(int excepts);
+int __softfp_fegetexceptflag(fexcept_t *flagp, int excepts);
+int __softfp_fesetexceptflag(const fexcept_t *flagp, int excepts);
+int __softfp_feraiseexcept(int excepts);
+int __softfp_fetestexcept(int excepts);
+int __softfp_fegetround(void);
+int __softfp_fesetround(int round);
+int __softfp_fegetenv(fenv_t *envp);
+int __softfp_feholdexcept(fenv_t *envp);
+int __softfp_fesetenv(const fenv_t *envp);
+int __softfp_feupdateenv(const fenv_t *envp);
+int __softfp_feenableexcept(int __mask);
+int __softfp_fedisableexcept(int __mask);
+int __softfp_fegetexcept(void);
+
+int __vfp_feclearexcept(int excepts);
+int __vfp_fegetexceptflag(fexcept_t *flagp, int excepts);
+int __vfp_fesetexceptflag(const fexcept_t *flagp, int excepts);
+int __vfp_feraiseexcept(int excepts);
+int __vfp_fetestexcept(int excepts);
+int __vfp_fegetround(void);
+int __vfp_fesetround(int round);
+int __vfp_fegetenv(fenv_t *envp);
+int __vfp_feholdexcept(fenv_t *envp);
+int __vfp_fesetenv(const fenv_t *envp);
+int __vfp_feupdateenv(const fenv_t *envp);
+int __vfp_feenableexcept(int __mask);
+int __vfp_fedisableexcept(int __mask);
+int __vfp_fegetexcept(void);
+
+static int
+__softfp_round_to_vfp(int round)
+{
+
+	switch (round) {
+	case FE_TONEAREST:
+	default:
+		return VFP_FE_TONEAREST;
+	case FE_TOWARDZERO:
+		return VFP_FE_TOWARDZERO;
+	case FE_UPWARD:
+		return VFP_FE_UPWARD;
+	case FE_DOWNWARD:
+		return VFP_FE_DOWNWARD;
+	}
+}
+
+static int
+__softfp_round_from_vfp(int round)
+{
+
+	switch (round) {
+	case VFP_FE_TONEAREST:
+	default:
+		return FE_TONEAREST;
+	case VFP_FE_TOWARDZERO:
+		return FE_TOWARDZERO;
+	case VFP_FE_UPWARD:
+		return FE_UPWARD;
+	case VFP_FE_DOWNWARD:
+		return FE_DOWNWARD;
+	}
+}
+
+int feclearexcept(int excepts)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_feclearexcept(excepts);
+	__softfp_feclearexcept(excepts);
+
+	return (0);
+}
+
+int fegetexceptflag(fexcept_t *flagp, int excepts)
+{
+	fexcept_t __vfp_flagp;
+
+	__vfp_flagp = 0;
+	if (_libc_arm_fpu_present)
+		__vfp_fegetexceptflag(&__vfp_flagp, excepts);
+	__softfp_fegetexceptflag(flagp, excepts);
+
+	*flagp |= __vfp_flagp;
+
+	return (0);
+}
+
+int fesetexceptflag(const fexcept_t *flagp, int excepts)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_fesetexceptflag(flagp, excepts);
+	__softfp_fesetexceptflag(flagp, excepts);
+
+	return (0);
+}
+
+int feraiseexcept(int excepts)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_feraiseexcept(excepts);
+	__softfp_feraiseexcept(excepts);
+
+	return (0);
+}
+
+int fetestexcept(int excepts)
+{
+	int __got_excepts;
+
+	__got_excepts = 0;
+	if (_libc_arm_fpu_present)
+		__got_excepts = __vfp_fetestexcept(excepts);
+	__got_excepts |= __softfp_fetestexcept(excepts);
+
+	return (__got_excepts);
+}
+
+int fegetround(void)
+{
+
+	if (_libc_arm_fpu_present)
+		return __softfp_round_from_vfp(__vfp_fegetround());
+	return __softfp_fegetround();
+}
+
+int fesetround(int round)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_fesetround(__softfp_round_to_vfp(round));
+	__softfp_fesetround(round);
+
+	return (0);
+}
+
+int fegetenv(fenv_t *envp)
+{
+	fenv_t __vfp_envp;
+
+	__vfp_envp = 0;
+	if (_libc_arm_fpu_present)
+		__vfp_fegetenv(&__vfp_envp);
+	__softfp_fegetenv(envp);
+	*envp |= __vfp_envp;
+
+	return (0);
+}
+
+int feholdexcept(fenv_t *envp)
+{
+	fenv_t __vfp_envp;
+
+	__vfp_envp = 0;
+	if (_libc_arm_fpu_present)
+		__vfp_feholdexcept(&__vfp_envp);
+	__softfp_feholdexcept(envp);
+	*envp |= __vfp_envp;
+
+	return (0);
+}
+
+int fesetenv(const fenv_t *envp)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_fesetenv(envp);
+	__softfp_fesetenv(envp);
+
+	return (0);
+}
+
+int feupdateenv(const fenv_t *envp)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_feupdateenv(envp);
+	__softfp_feupdateenv(envp);
+
+	return (0);
+}
+
+int feenableexcept(int __mask)
+{
+	int __unmasked;
+
+	__unmasked = 0;
+	if (_libc_arm_fpu_present)
+		__unmasked = __vfp_feenableexcept(__mask);
+	__unmasked |= __softfp_feenableexcept(__mask);
+
+	return (__unmasked);
+}
+
+int fedisableexcept(int __mask)
+{
+	int __unmasked;
+
+	__unmasked = 0;
+	if (_libc_arm_fpu_present)
+		__unmasked = __vfp_fedisableexcept(__mask);
+	__unmasked |= __softfp_fedisableexcept(__mask);
+
+	return (__unmasked);
+}
+
+int fegetexcept(void)
+{
+	int __unmasked;
+
+	__unmasked = 0;
+	if (_libc_arm_fpu_present)
+		__unmasked = __vfp_fegetexcept();
+	__unmasked |= __softfp_fegetexcept();
+
+	return (__unmasked);
+}
+
+#endif
+
diff --git a/newlib/libm/machine/arm/feraiseexcept.c b/newlib/libm/machine/arm/feraiseexcept.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/feraiseexcept.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fesetenv.c b/newlib/libm/machine/arm/fesetenv.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fesetenv.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fesetexceptflag.c b/newlib/libm/machine/arm/fesetexceptflag.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fesetexceptflag.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fesetround.c b/newlib/libm/machine/arm/fesetround.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fesetround.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/fetestexcept.c b/newlib/libm/machine/arm/fetestexcept.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/fetestexcept.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"
diff --git a/newlib/libm/machine/arm/feupdateenv.c b/newlib/libm/machine/arm/feupdateenv.c
new file mode 100644
index 000000000..8cbee7771
--- /dev/null
+++ b/newlib/libm/machine/arm/feupdateenv.c
@@ -0,0 +1,7 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * (c) Copyright 2019 Joel Sherrill <joel@rtems.org>
+ */
+
+#include "../../fenv/fenv_stub.c"