[2/3] PRU: Align libmath to PRU ABI

Message ID 20180613195934.11945-2-dimitar@dinux.eu
State New
Headers show
Series
  • [1/3] Initial PRU port
Related show

Commit Message

Dimitar Dimitrov June 13, 2018, 7:59 p.m.
The TI proprietary toolchain uses nonstandard names for some math
library functions. In order to achieve ABI compatibility between
GNU and TI toolchains, add support for the TI function names.

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>

---
 newlib/configure.host                 |  1 +
 newlib/libm/machine/configure.in      |  1 +
 newlib/libm/machine/pru/Makefile.am   | 19 ++++++++++++++++
 newlib/libm/machine/pru/configure.in  | 11 +++++++++
 newlib/libm/machine/pru/fpclassify.c  | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/fpclassifyf.c | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isfinite.c    | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isfinitef.c   | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isinf.c       | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isinff.c      | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isnan.c       | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isnanf.c      | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isnormal.c    | 43 +++++++++++++++++++++++++++++++++++
 newlib/libm/machine/pru/isnormalf.c   | 43 +++++++++++++++++++++++++++++++++++
 14 files changed, 462 insertions(+)
 create mode 100644 newlib/libm/machine/pru/Makefile.am
 create mode 100644 newlib/libm/machine/pru/configure.in
 create mode 100644 newlib/libm/machine/pru/fpclassify.c
 create mode 100644 newlib/libm/machine/pru/fpclassifyf.c
 create mode 100644 newlib/libm/machine/pru/isfinite.c
 create mode 100644 newlib/libm/machine/pru/isfinitef.c
 create mode 100644 newlib/libm/machine/pru/isinf.c
 create mode 100644 newlib/libm/machine/pru/isinff.c
 create mode 100644 newlib/libm/machine/pru/isnan.c
 create mode 100644 newlib/libm/machine/pru/isnanf.c
 create mode 100644 newlib/libm/machine/pru/isnormal.c
 create mode 100644 newlib/libm/machine/pru/isnormalf.c

-- 
2.11.0

Patch

diff --git a/newlib/configure.host b/newlib/configure.host
index 10115c613..48f997fbc 100644
--- a/newlib/configure.host
+++ b/newlib/configure.host
@@ -268,6 +268,7 @@  case "${host_cpu}" in
 	default_newlib_nano_malloc="yes"
 	default_newlib_atexit_dynamic_alloc="no"
 	machine_dir=pru
+	libm_machine_dir=pru
 	;;
   riscv*)
 	libm_machine_dir=riscv
diff --git a/newlib/libm/machine/configure.in b/newlib/libm/machine/configure.in
index 55e2d35c3..5a58b6bed 100644
--- a/newlib/libm/machine/configure.in
+++ b/newlib/libm/machine/configure.in
@@ -29,6 +29,7 @@  if test -n "${libm_machine_dir}"; then
 	arm) AC_CONFIG_SUBDIRS(arm) ;;
 	i386) AC_CONFIG_SUBDIRS(i386) ;;
 	nds32) AC_CONFIG_SUBDIRS(nds32) ;;
+	pru) AC_CONFIG_SUBDIRS(pru) ;;
 	spu) AC_CONFIG_SUBDIRS(spu) ;;
 	riscv) AC_CONFIG_SUBDIRS(riscv) ;;
   esac;
diff --git a/newlib/libm/machine/pru/Makefile.am b/newlib/libm/machine/pru/Makefile.am
new file mode 100644
index 000000000..69facdf34
--- /dev/null
+++ b/newlib/libm/machine/pru/Makefile.am
@@ -0,0 +1,19 @@ 
+## Process this file with automake to generate Makefile.in
+
+INCLUDES = -I $(newlib_basedir)/../newlib/libm/common $(NEWLIB_CFLAGS) \
+	$(CROSS_CFLAGS) $(TARGET_CFLAGS)
+
+LIB_SOURCES = \
+	fpclassify.c fpclassifyf.c isfinite.c isfinitef.c isinf.c \
+	isinff.c isnan.c isnanf.c isnormal.c isnormalf.c
+
+noinst_LIBRARIES = lib.a
+lib_a_SOURCES = $(LIB_SOURCES)
+lib_a_CFLAGS = $(AM_CFLAGS)
+lib_a_CCASFLAGS = $(AM_CCASFLAGS)
+noinst_DATA =
+
+include $(srcdir)/../../../Makefile.shared
+
+ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
+CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host
diff --git a/newlib/libm/machine/pru/configure.in b/newlib/libm/machine/pru/configure.in
new file mode 100644
index 000000000..7a22fa31c
--- /dev/null
+++ b/newlib/libm/machine/pru/configure.in
@@ -0,0 +1,11 @@ 
+
+AC_PREREQ(2.59)
+AC_INIT([newlib],[NEWLIB_VERSION])
+AC_CONFIG_SRCDIR([Makefile.am])
+
+AC_CONFIG_AUX_DIR(../../../..)
+
+NEWLIB_CONFIGURE(../../..)
+
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT
diff --git a/newlib/libm/machine/pru/fpclassify.c b/newlib/libm/machine/pru/fpclassify.c
new file mode 100644
index 000000000..53e22f0fa
--- /dev/null
+++ b/newlib/libm/machine/pru/fpclassify.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_fpclassify(double a)
+{
+  return fpclassify(a);
+}
diff --git a/newlib/libm/machine/pru/fpclassifyf.c b/newlib/libm/machine/pru/fpclassifyf.c
new file mode 100644
index 000000000..01c06aeef
--- /dev/null
+++ b/newlib/libm/machine/pru/fpclassifyf.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_fpclassifyf(float a)
+{
+  return fpclassifyf(a);
+}
diff --git a/newlib/libm/machine/pru/isfinite.c b/newlib/libm/machine/pru/isfinite.c
new file mode 100644
index 000000000..305d6bc0e
--- /dev/null
+++ b/newlib/libm/machine/pru/isfinite.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isfinite(double a)
+{
+  return isfinite(a);
+}
diff --git a/newlib/libm/machine/pru/isfinitef.c b/newlib/libm/machine/pru/isfinitef.c
new file mode 100644
index 000000000..fcd7247cc
--- /dev/null
+++ b/newlib/libm/machine/pru/isfinitef.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isfinitef(float a)
+{
+  return isfinite(a);
+}
diff --git a/newlib/libm/machine/pru/isinf.c b/newlib/libm/machine/pru/isinf.c
new file mode 100644
index 000000000..2a2ca7339
--- /dev/null
+++ b/newlib/libm/machine/pru/isinf.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isinf(double a)
+{
+  return isinf(a);
+}
diff --git a/newlib/libm/machine/pru/isinff.c b/newlib/libm/machine/pru/isinff.c
new file mode 100644
index 000000000..ffbf23b54
--- /dev/null
+++ b/newlib/libm/machine/pru/isinff.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isinff(float a)
+{
+  return isinf(a);
+}
diff --git a/newlib/libm/machine/pru/isnan.c b/newlib/libm/machine/pru/isnan.c
new file mode 100644
index 000000000..a0ea651b1
--- /dev/null
+++ b/newlib/libm/machine/pru/isnan.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isnan(double a)
+{
+  return isnan(a);
+}
diff --git a/newlib/libm/machine/pru/isnanf.c b/newlib/libm/machine/pru/isnanf.c
new file mode 100644
index 000000000..cba350e6f
--- /dev/null
+++ b/newlib/libm/machine/pru/isnanf.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isnanf(float a)
+{
+  return isnan(a);
+}
diff --git a/newlib/libm/machine/pru/isnormal.c b/newlib/libm/machine/pru/isnormal.c
new file mode 100644
index 000000000..c1463e4c6
--- /dev/null
+++ b/newlib/libm/machine/pru/isnormal.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isnormal(double a)
+{
+  return isnormal(a);
+}
diff --git a/newlib/libm/machine/pru/isnormalf.c b/newlib/libm/machine/pru/isnormalf.c
new file mode 100644
index 000000000..e7023f52a
--- /dev/null
+++ b/newlib/libm/machine/pru/isnormalf.c
@@ -0,0 +1,43 @@ 
+/*
+  (c) Copyright 2017-2018 Dimitar Dimitrov <dimitar@dinux.eu>
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions
+  are met:
+
+  * Redistributions of source code must retain the above copyright
+  notice, this list of conditions and the following disclaimer.
+
+  * 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.
+
+  * Neither the names of the copyright holders nor the names of their
+  contributors may be used to endorse or promote products derived from
+  this software without specific prior written permission.
+
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+  COPYRIGHT OWNER 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.
+*/
+
+#include <math.h>
+
+/* GCC will not generate code calling this function, since the corresponding
+   builtin will produce code that uses simple ops only.  In order to support
+   linking against TI CLPRU objects, though, provide the function mandated
+   by TI ABI.  */
+int __pruabi_isnormalf(float a)
+{
+  return isnormal(a);
+}