[02/11] Initial TI PRU libgcc port

Message ID 20180613185805.7833-3-dimitar@dinux.eu
State New
Headers show
Series
  • New backend for the TI PRU processor
Related show

Commit Message

Dimitar Dimitrov June 13, 2018, 6:57 p.m.
The floating point support has been borrowed from C6X libgcc port
to help with TI PRU toolchain ABI compatibility.

libgcc/ChangeLog:

2018-06-13  Dimitar Dimitrov  <dimitar@dinux.eu>

	* config.host: Add PRU target.
	* config/pru/asri.c: New file.
	* config/pru/eqd.c: New file.
	* config/pru/eqf.c: New file.
	* config/pru/ged.c: New file.
	* config/pru/gef.c: New file.
	* config/pru/gtd.c: New file.
	* config/pru/gtf.c: New file.
	* config/pru/led.c: New file.
	* config/pru/lef.c: New file.
	* config/pru/lib2bitcountHI.c: New file.
	* config/pru/lib2divHI.c: New file.
	* config/pru/lib2divQI.c: New file.
	* config/pru/lib2divSI.c: New file.
	* config/pru/libgcc-eabi.ver: New file.
	* config/pru/ltd.c: New file.
	* config/pru/ltf.c: New file.
	* config/pru/mpyll.S: New file.
	* config/pru/pru-abi.h: New file.
	* config/pru/pru-asm.h: New file.
	* config/pru/pru-divmod.h: New file.
	* config/pru/sfp-machine.h: New file.
	* config/pru/t-pru: New file.

Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
---
 libgcc/config.host                 |   7 +++
 libgcc/config/pru/asri.c           |  33 ++++++++++
 libgcc/config/pru/eqd.c            |  45 +++++++++++++
 libgcc/config/pru/eqf.c            |  45 +++++++++++++
 libgcc/config/pru/ged.c            |  45 +++++++++++++
 libgcc/config/pru/gef.c            |  45 +++++++++++++
 libgcc/config/pru/gtd.c            |  45 +++++++++++++
 libgcc/config/pru/gtf.c            |  45 +++++++++++++
 libgcc/config/pru/led.c            |  45 +++++++++++++
 libgcc/config/pru/lef.c            |  45 +++++++++++++
 libgcc/config/pru/lib2bitcountHI.c |  43 +++++++++++++
 libgcc/config/pru/lib2divHI.c      |  42 +++++++++++++
 libgcc/config/pru/lib2divQI.c      |  42 +++++++++++++
 libgcc/config/pru/lib2divSI.c      |  48 ++++++++++++++
 libgcc/config/pru/libgcc-eabi.ver  |  88 ++++++++++++++++++++++++++
 libgcc/config/pru/ltd.c            |  45 +++++++++++++
 libgcc/config/pru/ltf.c            |  45 +++++++++++++
 libgcc/config/pru/mpyll.S          |  57 +++++++++++++++++
 libgcc/config/pru/pru-abi.h        | 109 ++++++++++++++++++++++++++++++++
 libgcc/config/pru/pru-asm.h        |  35 +++++++++++
 libgcc/config/pru/pru-divmod.h     | 117 ++++++++++++++++++++++++++++++++++
 libgcc/config/pru/sfp-machine.h    | 125 +++++++++++++++++++++++++++++++++++++
 libgcc/config/pru/t-pru            |  50 +++++++++++++++
 23 files changed, 1246 insertions(+)
 create mode 100644 libgcc/config/pru/asri.c
 create mode 100644 libgcc/config/pru/eqd.c
 create mode 100644 libgcc/config/pru/eqf.c
 create mode 100644 libgcc/config/pru/ged.c
 create mode 100644 libgcc/config/pru/gef.c
 create mode 100644 libgcc/config/pru/gtd.c
 create mode 100644 libgcc/config/pru/gtf.c
 create mode 100644 libgcc/config/pru/led.c
 create mode 100644 libgcc/config/pru/lef.c
 create mode 100644 libgcc/config/pru/lib2bitcountHI.c
 create mode 100644 libgcc/config/pru/lib2divHI.c
 create mode 100644 libgcc/config/pru/lib2divQI.c
 create mode 100644 libgcc/config/pru/lib2divSI.c
 create mode 100644 libgcc/config/pru/libgcc-eabi.ver
 create mode 100644 libgcc/config/pru/ltd.c
 create mode 100644 libgcc/config/pru/ltf.c
 create mode 100644 libgcc/config/pru/mpyll.S
 create mode 100644 libgcc/config/pru/pru-abi.h
 create mode 100644 libgcc/config/pru/pru-asm.h
 create mode 100644 libgcc/config/pru/pru-divmod.h
 create mode 100644 libgcc/config/pru/sfp-machine.h
 create mode 100644 libgcc/config/pru/t-pru

Patch

diff --git a/libgcc/config.host b/libgcc/config.host
index 18cabaf24f6..ff229c38f0c 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -165,6 +165,9 @@  nios2*-*-*)
 powerpc*-*-*)
 	cpu_type=rs6000
 	;;
+pru-*-*)
+	cpu_type=pru
+	;;
 rs6000*-*-*)
 	;;
 riscv*-*-*)
@@ -1145,6 +1148,10 @@  powerpcle-*-eabi*)
 	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff t-crtstuff-pic t-fdpbit"
 	extra_parts="$extra_parts crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o ecrti.o ecrtn.o ncrti.o ncrtn.o"
 	;;
+pru-*-*)
+	tmake_file="${tmake_file} t-softfp-sfdf t-softfp-excl t-softfp t-gnu-prefix pru/t-pru"
+	tm_file="$tm_file pru/pru-abi.h"
+	;;
 riscv*-*-linux*)
 	tmake_file="${tmake_file} riscv/t-softfp${host_address} t-softfp riscv/t-elf riscv/t-elf${host_address}"
 	extra_parts="$extra_parts crtbegin.o crtend.o crti.o crtn.o crtendS.o crtbeginT.o"
diff --git a/libgcc/config/pru/asri.c b/libgcc/config/pru/asri.c
new file mode 100644
index 00000000000..591d660f227
--- /dev/null
+++ b/libgcc/config/pru/asri.c
@@ -0,0 +1,33 @@ 
+/* PRU ABI compatibility functions
+   Arithmetic right shift
+   Copyright (C) 2017-2018 Free Software Foundation, Inc.
+   Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+int __pruabi_asri(int a, unsigned char shift)
+{
+  /* GCC has a built-in op.  */
+  return a >> shift;
+}
diff --git a/libgcc/config/pru/eqd.c b/libgcc/config/pru/eqd.c
new file mode 100644
index 00000000000..cce5c9ec119
--- /dev/null
+++ b/libgcc/config/pru/eqd.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a == b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/double.h>
+
+CMPtype __pruabi_eqd(DFtype a, DFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A); FP_DECL_D(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_D(A, a);
+  FP_UNPACK_RAW_D(B, b);
+  FP_CMP_EQ_D(r, A, B, 1);
+  FP_HANDLE_EXCEPTIONS;
+
+  return !r;
+}
diff --git a/libgcc/config/pru/eqf.c b/libgcc/config/pru/eqf.c
new file mode 100644
index 00000000000..701b54e06ba
--- /dev/null
+++ b/libgcc/config/pru/eqf.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a == b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/single.h>
+
+CMPtype __pruabi_eqf(SFtype a, SFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_S(A); FP_DECL_S(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_S(A, a);
+  FP_UNPACK_RAW_S(B, b);
+  FP_CMP_EQ_S(r, A, B, 1);
+  FP_HANDLE_EXCEPTIONS;
+
+  return !r;
+}
diff --git a/libgcc/config/pru/ged.c b/libgcc/config/pru/ged.c
new file mode 100644
index 00000000000..91b84ea2639
--- /dev/null
+++ b/libgcc/config/pru/ged.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a >= b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/double.h>
+
+CMPtype __pruabi_ged(DFtype a, DFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A); FP_DECL_D(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_D(A, a);
+  FP_UNPACK_RAW_D(B, b);
+  FP_CMP_D(r, A, B, -2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r >= 0;
+}
diff --git a/libgcc/config/pru/gef.c b/libgcc/config/pru/gef.c
new file mode 100644
index 00000000000..042786a459d
--- /dev/null
+++ b/libgcc/config/pru/gef.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a >= b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/single.h>
+
+CMPtype __pruabi_gef(SFtype a, SFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_S(A); FP_DECL_S(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_S(A, a);
+  FP_UNPACK_RAW_S(B, b);
+  FP_CMP_S(r, A, B, -2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r >= 0;
+}
diff --git a/libgcc/config/pru/gtd.c b/libgcc/config/pru/gtd.c
new file mode 100644
index 00000000000..3f536254dde
--- /dev/null
+++ b/libgcc/config/pru/gtd.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a > b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/double.h>
+
+CMPtype __pruabi_gtd(DFtype a, DFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A); FP_DECL_D(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_D(A, a);
+  FP_UNPACK_RAW_D(B, b);
+  FP_CMP_D(r, A, B, -2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r > 0;
+}
diff --git a/libgcc/config/pru/gtf.c b/libgcc/config/pru/gtf.c
new file mode 100644
index 00000000000..ae5b734fbbb
--- /dev/null
+++ b/libgcc/config/pru/gtf.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a > b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/single.h>
+
+CMPtype __pruabi_gtf(SFtype a, SFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_S(A); FP_DECL_S(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_S(A, a);
+  FP_UNPACK_RAW_S(B, b);
+  FP_CMP_S(r, A, B, -2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r > 0;
+}
diff --git a/libgcc/config/pru/led.c b/libgcc/config/pru/led.c
new file mode 100644
index 00000000000..d7d1a51ddc3
--- /dev/null
+++ b/libgcc/config/pru/led.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a <= b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/double.h>
+
+CMPtype __pruabi_led(DFtype a, DFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A); FP_DECL_D(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_D(A, a);
+  FP_UNPACK_RAW_D(B, b);
+  FP_CMP_D(r, A, B, 2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r <= 0;
+}
diff --git a/libgcc/config/pru/lef.c b/libgcc/config/pru/lef.c
new file mode 100644
index 00000000000..b50e624f62f
--- /dev/null
+++ b/libgcc/config/pru/lef.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a <= b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/single.h>
+
+CMPtype __pruabi_lef(SFtype a, SFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_S(A); FP_DECL_S(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_S(A, a);
+  FP_UNPACK_RAW_S(B, b);
+  FP_CMP_S(r, A, B, 2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r <= 0;
+}
diff --git a/libgcc/config/pru/lib2bitcountHI.c b/libgcc/config/pru/lib2bitcountHI.c
new file mode 100644
index 00000000000..7f07069152a
--- /dev/null
+++ b/libgcc/config/pru/lib2bitcountHI.c
@@ -0,0 +1,43 @@ 
+/* libgcc routines for PRU
+   Copyright (C) 2014-2018 Free Software Foundation, Inc.
+   Based on lib2bitcountHI.c from MSP430 port.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+typedef		  int sint32_type   __attribute__ ((mode (SI)));
+typedef unsigned  int uint32_type   __attribute__ ((mode (SI)));
+typedef		  int sint16_type   __attribute__ ((mode (HI)));
+typedef unsigned  int uint16_type   __attribute__ ((mode (HI)));
+typedef		  int sint08_type   __attribute__ ((mode (QI)));
+typedef unsigned  int uint08_type   __attribute__ ((mode (QI)));
+typedef		  int word_type     __attribute__ ((mode (__word__)));
+
+#define C3B(a,b,c) a##b##c
+#define C3(a,b,c) C3B(a,b,c)
+
+#define L_clzsi2
+#define L_ctzsi2
+#define L_ffssi2
+#define L_paritysi2
+#define L_popcountsi2
+
+#include "libgcc2.c"
diff --git a/libgcc/config/pru/lib2divHI.c b/libgcc/config/pru/lib2divHI.c
new file mode 100644
index 00000000000..ae99db718f0
--- /dev/null
+++ b/libgcc/config/pru/lib2divHI.c
@@ -0,0 +1,42 @@ 
+/* HI mode divide routines for libgcc for PRU
+   Copyright (C) 2014-2018 Free Software Foundation, Inc.
+   Based on lib2divHI.c from MSP430 port.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+typedef		  int sint32_type   __attribute__ ((mode (SI)));
+typedef unsigned  int uint32_type   __attribute__ ((mode (SI)));
+typedef		  int sint16_type   __attribute__ ((mode (HI)));
+typedef unsigned  int uint16_type   __attribute__ ((mode (HI)));
+typedef		  int sint08_type   __attribute__ ((mode (QI)));
+typedef unsigned  int uint08_type   __attribute__ ((mode (QI)));
+typedef		  int word_type     __attribute__ ((mode (__word__)));
+
+#define C3B(a,b,c) a##b##c
+#define C3(a,b,c) C3B(a,b,c)
+
+#define UINT_TYPE	uint16_type
+#define SINT_TYPE	sint16_type
+#define BITS_MINUS_1	15
+#define NAME_MODE	hi
+
+#include "pru-divmod.h"
diff --git a/libgcc/config/pru/lib2divQI.c b/libgcc/config/pru/lib2divQI.c
new file mode 100644
index 00000000000..b271d483dcb
--- /dev/null
+++ b/libgcc/config/pru/lib2divQI.c
@@ -0,0 +1,42 @@ 
+/* QI mode divide routines for libgcc for PRU
+   Copyright (C) 2014-2018 Free Software Foundation, Inc.
+   Based on lib2divQI.c from MSP430 port.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+typedef		  int sint32_type   __attribute__ ((mode (SI)));
+typedef unsigned  int uint32_type   __attribute__ ((mode (SI)));
+typedef		  int sint16_type   __attribute__ ((mode (HI)));
+typedef unsigned  int uint16_type   __attribute__ ((mode (HI)));
+typedef		  int sint08_type   __attribute__ ((mode (QI)));
+typedef unsigned  int uint08_type   __attribute__ ((mode (QI)));
+typedef		  int word_type     __attribute__ ((mode (__word__)));
+
+#define C3B(a,b,c) a##b##c
+#define C3(a,b,c) C3B(a,b,c)
+
+#define UINT_TYPE	uint08_type
+#define SINT_TYPE	sint08_type
+#define BITS_MINUS_1	7
+#define NAME_MODE	qi
+
+#include "pru-divmod.h"
diff --git a/libgcc/config/pru/lib2divSI.c b/libgcc/config/pru/lib2divSI.c
new file mode 100644
index 00000000000..6b49649a62d
--- /dev/null
+++ b/libgcc/config/pru/lib2divSI.c
@@ -0,0 +1,48 @@ 
+/* SI mode divide routines for libgcc for PRU
+   Copyright (C) 2014-2018 Free Software Foundation, Inc.
+   Based on lib2divSI.c from MSP430 port.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+typedef		  int sint32_type   __attribute__ ((mode (SI)));
+typedef unsigned  int uint32_type   __attribute__ ((mode (SI)));
+typedef		  int sint16_type   __attribute__ ((mode (HI)));
+typedef unsigned  int uint16_type   __attribute__ ((mode (HI)));
+typedef		  int sint08_type   __attribute__ ((mode (QI)));
+typedef unsigned  int uint08_type   __attribute__ ((mode (QI)));
+typedef		  int word_type     __attribute__ ((mode (__word__)));
+
+#define C3B(a,b,c) a##b##c
+#define C3(a,b,c) C3B(a,b,c)
+
+/* PRU ABI dictates the library function names.  */
+#define __gnu_divsi3 __pruabi_divi
+#define __gnu_modsi3 __pruabi_remi
+#define __gnu_udivsi3 __pruabi_divu
+#define __gnu_umodsi3 __pruabi_remu
+
+#define UINT_TYPE	uint32_type
+#define SINT_TYPE	sint32_type
+#define BITS_MINUS_1	31
+#define NAME_MODE	si
+
+#include "pru-divmod.h"
diff --git a/libgcc/config/pru/libgcc-eabi.ver b/libgcc/config/pru/libgcc-eabi.ver
new file mode 100644
index 00000000000..969d35fe18c
--- /dev/null
+++ b/libgcc/config/pru/libgcc-eabi.ver
@@ -0,0 +1,88 @@ 
+# Copyright (C) 2017-2018 Free Software Foundation, Inc.
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GCC 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+GCC_9.0.0 {
+  __pruabi_asri
+  __pruabi_asrll
+  __pruabi_mpyll
+  __pruabi_negll
+  __pruabi_lslll
+  __pruabi_lsrll
+  __pruabi_fixfu
+  __pruabi_fixdu
+  __pruabi_fixflli
+  __pruabi_fixdlli
+  __pruabi_fixfull
+  __pruabi_fixdull
+  __pruabi_fltllif
+  __pruabi_fltllid
+  __pruabi_fltullf
+  __pruabi_fltulld
+  __pruabi_divlli
+  __pruabi_remlli
+  __pruabi_divull
+  __pruabi_remull
+  __pruabi_divremull
+  __pruabi_gef
+  __pruabi_gtf
+  __pruabi_lef
+  __pruabi_ltf
+  __pruabi_eqf
+  __pruabi_ged
+  __pruabi_gtd
+  __pruabi_led
+  __pruabi_ltd
+  __pruabi_eqd
+  __pruabi_addf
+  __pruabi_divf
+  __pruabi_neqf
+  __pruabi_cmpf
+  __pruabi_mpyf
+  __pruabi_negf
+  __pruabi_subf
+  __pruabi_unordf
+  __pruabi_fixfi
+  __pruabi_fltif
+  __pruabi_fltuf
+  __pruabi_addd
+  __pruabi_divd
+  __pruabi_neqd
+  __pruabi_cmpd
+  __pruabi_mpyd
+  __pruabi_negd
+  __pruabi_subd
+  __pruabi_unordd
+  __pruabi_fixdi
+  __pruabi_fltid
+  __pruabi_fltud
+  __pruabi_cvtfd
+  __pruabi_cvtdf
+  __pruabi_mulcf
+  __pruabi_mulcd
+  __pruabi_divcf
+  __pruabi_divcd
+
+  __gnu_ltsf2
+  __gnu_ltdf2
+  __gnu_gesf2
+  __gnu_gedf2
+  __gnu_gtsf2
+  __gnu_gtdf2
+  __gnu_eqsf2
+  __gnu_eqdf2
+}
diff --git a/libgcc/config/pru/ltd.c b/libgcc/config/pru/ltd.c
new file mode 100644
index 00000000000..7be20686e1a
--- /dev/null
+++ b/libgcc/config/pru/ltd.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a < b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/double.h>
+
+CMPtype __pruabi_ltd(DFtype a, DFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A); FP_DECL_D(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_D(A, a);
+  FP_UNPACK_RAW_D(B, b);
+  FP_CMP_D(r, A, B, 2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r < 0;
+}
diff --git a/libgcc/config/pru/ltf.c b/libgcc/config/pru/ltf.c
new file mode 100644
index 00000000000..7b81dbd2ca1
--- /dev/null
+++ b/libgcc/config/pru/ltf.c
@@ -0,0 +1,45 @@ 
+/* Software floating-point emulation.
+   Return 1 iff a < b, 0 otherwise.
+   Copyright (C) 1997-2018 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/single.h>
+
+CMPtype __pruabi_ltf(SFtype a, SFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_S(A); FP_DECL_S(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_S(A, a);
+  FP_UNPACK_RAW_S(B, b);
+  FP_CMP_S(r, A, B, 2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r < 0;
+}
diff --git a/libgcc/config/pru/mpyll.S b/libgcc/config/pru/mpyll.S
new file mode 100644
index 00000000000..d384b54515a
--- /dev/null
+++ b/libgcc/config/pru/mpyll.S
@@ -0,0 +1,57 @@ 
+/*  Copyright (C) 2014-2018 Free Software Foundation, Inc.
+    Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+
+  This file is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation; either version 3, or (at your option) any
+  later version.
+
+  This file 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
+  General Public License for more details.
+
+  Under Section 7 of GPL version 3, you are granted additional
+  permissions described in the GCC Runtime Library Exception, version
+  3.1, as published by the Free Software Foundation.
+
+  You should have received a copy of the GNU General Public License and
+  a copy of the GCC Runtime Library Exception along with this program;
+  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+  <http://www.gnu.org/licenses/>.
+
+      (al + C * ah) * (bl + C * bh) =    al * bl
+				       + C * ah * bl
+				       + C * al * bh
+				       + C * C * ah * bh  -> discard, overflow
+	Where C=(1 << 32)
+  */
+
+#include "pru-asm.h"
+
+	.global	SYM(__pruabi_mpyll)
+	FUNC(__pruabi_mpyll)
+SYM(__pruabi_mpyll):
+	/* + C * ah * bl */
+	mov	r28, r15
+	mov	r29, r16
+	nop
+	xin	0, r26, 8
+
+	/* + C * al * bh */
+	mov	r28, r14
+	mov	r29, r17
+	mov	r15, r26		/* "Loose" ah, record only reslo.  */
+	xin	0, r26, 8
+
+	/* + al * bl */
+	/* mov	r28, r14		-> No need, already loaded.  */
+	mov	r29, r16
+	add	r15, r15, r26
+	xin	0, r26, 8
+	mov	r14, r26
+	add	r15, r15, r27
+
+	ret
+
+	ENDFUNC(__pruabi_mpyll)
diff --git a/libgcc/config/pru/pru-abi.h b/libgcc/config/pru/pru-abi.h
new file mode 100644
index 00000000000..79d7be76a5d
--- /dev/null
+++ b/libgcc/config/pru/pru-abi.h
@@ -0,0 +1,109 @@ 
+/* Header file for PRU ABI versions of libgcc functions.
+   Copyright (C) 2011-2018 Free Software Foundation, Inc.
+   Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+   Based on c6x/c6x-abi.h
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License
+   along with GCC; see the file COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Make __pruabi_AEABI_NAME an alias for __GCC_NAME.  */
+#define RENAME_LIBRARY(GCC_NAME, AEABI_NAME)			\
+  __asm__ (".globl\t__pruabi_" #AEABI_NAME "\n"		\
+	   ".set\t__pruabi_" #AEABI_NAME			\
+	   ", __gnu_" #GCC_NAME "\n");
+
+/* Rename helper functions to the names specified in the PRU ELF ABI.  */
+#ifdef L_divsi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (divsi3, divi)
+#endif
+#ifdef L_divdi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (divdi3, divlli)
+#endif
+#ifdef L_udivsi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (udivsi3, divu)
+#endif
+#ifdef L_udivdi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (udivdi3, divull)
+#endif
+#ifdef L_udivmoddi4
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (udivmoddi4, divremull)
+#endif
+#ifdef L_modsi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (modsi3, remi)
+#endif
+#ifdef L_moddi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (moddi3, remlli)
+#endif
+#ifdef L_umodsi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (umodsi3, remu)
+#endif
+#ifdef L_umoddi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (umoddi3, remull)
+#endif
+#ifdef L_negdi2
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (negdi2, negll)
+#endif
+#ifdef L_muldi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, mpyll)
+#endif
+#ifdef L_ashrdi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (ashrdi3, asrll)
+#endif
+#ifdef L_lshrdi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (lshrdi3, lsrll)
+#endif
+#ifdef L_ashldi3
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (ashldi3, lslll)
+#endif
+
+/* The following are excluded from softfp due to softfp_exclude_libgcc2,
+   so we rename them here rather than in sfp-machine.h.  */
+#ifdef L_fixdfdi
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixdfdi, fixdlli)
+#endif
+#ifdef L_fixunsdfsi
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfsi, fixdu)
+#endif
+#ifdef L_fixunsdfdi
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfdi, fixdull)
+#endif
+#ifdef L_fixsfdi
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixsfdi, fixflli)
+#endif
+#ifdef L_fixunssfsi
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfsi, fixfu)
+#endif
+#ifdef L_fixunssfdi
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfdi, fixfull)
+#endif
+#ifdef L_floatdidf
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdidf, fltllid)
+#endif
+#ifdef L_floatundidf
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundidf, fltulld)
+#endif
+#ifdef L_floatdisf
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdisf, fltllif)
+#endif
+#ifdef L_floatundisf
+#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundisf, fltullf)
+#endif
+
+#define LIBGCC2_GNU_PREFIX
diff --git a/libgcc/config/pru/pru-asm.h b/libgcc/config/pru/pru-asm.h
new file mode 100644
index 00000000000..28272a13937
--- /dev/null
+++ b/libgcc/config/pru/pru-asm.h
@@ -0,0 +1,35 @@ 
+/*  Copyright (C) 2014-2018 Free Software Foundation, Inc.
+    Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+
+  This file is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by the
+  Free Software Foundation; either version 3, or (at your option) any
+  later version.
+
+  This file 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
+  General Public License for more details.
+
+  Under Section 7 of GPL version 3, you are granted additional
+  permissions described in the GCC Runtime Library Exception, version
+  3.1, as published by the Free Software Foundation.
+
+  You should have received a copy of the GNU General Public License and
+  a copy of the GCC Runtime Library Exception along with this program;
+  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+  <http://www.gnu.org/licenses/>.  */
+
+/* ANSI concatenation macros.  */
+
+#define CONCAT1(a, b) CONCAT2(a, b)
+#define CONCAT2(a, b) a ## b
+
+/* Use the right prefix for global labels.  */
+
+#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
+
+#define FUNC(X)		.type SYM(X),@function
+#define HIDDEN_FUNC(X)	FUNC(X)` .hidden SYM(X)
+#define ENDFUNC0(X)	CONCAT1(.Lfe_,X): .size X,CONCAT1(.Lfe_,X)-X
+#define ENDFUNC(X)	ENDFUNC0(SYM(X))
diff --git a/libgcc/config/pru/pru-divmod.h b/libgcc/config/pru/pru-divmod.h
new file mode 100644
index 00000000000..40577eaa956
--- /dev/null
+++ b/libgcc/config/pru/pru-divmod.h
@@ -0,0 +1,117 @@ 
+/* libgcc routines for PRU
+   Copyright (C) 2014-2018 Free Software Foundation, Inc.
+   Based on msp430-divmod.h from MSP430 port.
+
+   This file is part of GCC.
+
+   GCC is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3, or (at your
+   option) any later version.
+
+   GCC 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 General Public
+   License for more details.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+UINT_TYPE C3(udivmod,NAME_MODE,4) (UINT_TYPE, UINT_TYPE, word_type);
+SINT_TYPE C3(__gnu_div,NAME_MODE,3)   (SINT_TYPE, SINT_TYPE);
+SINT_TYPE C3(__gnu_mod,NAME_MODE,3)   (SINT_TYPE, SINT_TYPE);
+UINT_TYPE C3(__gnu_udiv,NAME_MODE,3)  (UINT_TYPE, UINT_TYPE);
+UINT_TYPE C3(__gnu_umod,NAME_MODE,3)  (UINT_TYPE, UINT_TYPE);
+
+UINT_TYPE
+C3(udivmod,NAME_MODE,4) (UINT_TYPE num, UINT_TYPE den, word_type modwanted)
+{
+  UINT_TYPE bit = 1;
+  UINT_TYPE res = 0;
+
+  while (den < num && bit && !(den & (1L << BITS_MINUS_1)))
+    {
+      den <<= 1;
+      bit <<= 1;
+    }
+  while (bit)
+    {
+      if (num >= den)
+	{
+	  num -= den;
+	  res |= bit;
+	}
+      bit >>= 1;
+      den >>= 1;
+    }
+  if (modwanted)
+    return num;
+  return res;
+}
+
+SINT_TYPE
+C3(__gnu_div,NAME_MODE,3) (SINT_TYPE a, SINT_TYPE b)
+{
+  word_type neg = 0;
+  SINT_TYPE res;
+
+  if (a < 0)
+    {
+      a = -a;
+      neg = !neg;
+    }
+
+  if (b < 0)
+    {
+      b = -b;
+      neg = !neg;
+    }
+
+  res = C3(udivmod,NAME_MODE,4) (a, b, 0);
+
+  if (neg)
+    res = -res;
+
+  return res;
+}
+
+SINT_TYPE
+C3(__gnu_mod,NAME_MODE,3) (SINT_TYPE a, SINT_TYPE b)
+{
+  word_type neg = 0;
+  SINT_TYPE res;
+
+  if (a < 0)
+    {
+      a = -a;
+      neg = 1;
+    }
+
+  if (b < 0)
+    b = -b;
+
+  res = C3(udivmod,NAME_MODE,4) (a, b, 1);
+
+  if (neg)
+    res = -res;
+
+  return res;
+}
+
+UINT_TYPE
+C3(__gnu_udiv,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)
+{
+  return C3(udivmod,NAME_MODE,4) (a, b, 0);
+}
+
+UINT_TYPE
+C3(__gnu_umod,NAME_MODE,3) (UINT_TYPE a, UINT_TYPE b)
+{
+  return C3(udivmod,NAME_MODE,4) (a, b, 1);
+}
diff --git a/libgcc/config/pru/sfp-machine.h b/libgcc/config/pru/sfp-machine.h
new file mode 100644
index 00000000000..0079823d425
--- /dev/null
+++ b/libgcc/config/pru/sfp-machine.h
@@ -0,0 +1,125 @@ 
+/* Soft-FP definitions for TI PRU.
+   Copyright (C) 2010-2018 Free Software Foundation, Inc.
+   Based on C6X soft-fp header.
+
+   This files 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#define _FP_W_TYPE_SIZE		32
+#define _FP_W_TYPE		unsigned long
+#define _FP_WS_TYPE		signed long
+#define _FP_I_TYPE		long
+
+#define _FP_MUL_MEAT_S(R,X,Y)				\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y)				\
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)				\
+  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_loop(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_H		((_FP_QNANBIT_H << 1) - 1)
+#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_H		0
+#define _FP_NANSIGN_S		0
+#define _FP_NANSIGN_D		0
+#define _FP_NANSIGN_Q		0
+
+#define _FP_KEEPNANFRACP 1
+#define _FP_QNANNEGATEDP 0
+
+/* Someone please check this.  */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
+  do {								\
+    if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs)		\
+	&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs))	\
+      {								\
+	R##_s = Y##_s;						\
+	_FP_FRAC_COPY_##wc(R,Y);				\
+      }								\
+    else							\
+      {								\
+	R##_s = X##_s;						\
+	_FP_FRAC_COPY_##wc(R,X);				\
+      }								\
+    R##_c = FP_CLS_NAN;						\
+  } while (0)
+
+#define	__LITTLE_ENDIAN	1234
+#define	__BIG_ENDIAN	4321
+
+#if defined _BIG_ENDIAN
+# define __BYTE_ORDER __BIG_ENDIAN
+#else
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
+/* Not checked.  */
+#define _FP_TININESS_AFTER_ROUNDING 0
+
+
+/* Define ALIASNAME as a strong alias for NAME.  */
+# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
+# define _strong_alias(name, aliasname) \
+  extern __typeof (name) aliasname __attribute__ ((alias (#name)));
+
+/* Rename helper functions to the names specified in the PRU ELF ABI.  */
+#define __fixdfsi     __pruabi_fixdi
+#define __fixsfsi     __pruabi_fixfi
+#define __floatsidf   __pruabi_fltid
+#define __floatunsidf __pruabi_fltud
+#define __floatsisf   __pruabi_fltif
+#define __floatunsisf __pruabi_fltuf
+#define __truncdfsf2  __pruabi_cvtdf
+#define __extendsfdf2 __pruabi_cvtfd
+#define __adddf3      __pruabi_addd
+#define __subdf3      __pruabi_subd
+#define __muldf3      __pruabi_mpyd
+#define __divdf3      __pruabi_divd
+#define __negdf2      __pruabi_negd
+#define __absdf2      __pruabi_absd
+#define __addsf3      __pruabi_addf
+#define __subsf3      __pruabi_subf
+#define __mulsf3      __pruabi_mpyf
+#define __divsf3      __pruabi_divf
+#define __negsf2      __pruabi_negf
+#define __abssf2      __pruabi_absf
+#define __lesf2       __pruabi_cmpf
+#define __ledf2       __pruabi_cmpd
+#define __ltsf2       __gnu_ltsf2
+#define __ltdf2       __gnu_ltdf2
+#define __gesf2       __gnu_gesf2
+#define __gedf2       __gnu_gedf2
+#define __gtsf2       __gnu_gtsf2
+#define __gtdf2       __gnu_gtdf2
+#define __eqsf2       __gnu_eqsf2
+#define __eqdf2       __gnu_eqdf2
+#define __nesf2       __pruabi_neqf
+#define __nedf2       __pruabi_neqd
+#define __unordsf2    __pruabi_unordf
+#define __unorddf2    __pruabi_unordd
diff --git a/libgcc/config/pru/t-pru b/libgcc/config/pru/t-pru
new file mode 100644
index 00000000000..35ae44f719b
--- /dev/null
+++ b/libgcc/config/pru/t-pru
@@ -0,0 +1,50 @@ 
+# Makefile fragment for building LIBGCC for the TI PRU processor.
+# Copyright (C) 2014-2018 Free Software Foundation, Inc.
+# Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published
+# by the Free Software Foundation; either version 3, or (at your
+# option) any later version.
+#
+# GCC 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 General Public License for more details.
+#
+# You should have received a copy of the  GNU General Public
+# License along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+# Note - we have separate versions of the lib2div<mode> files
+# as the functions are quite large and we do not want to pull
+# in unneeded division routines.
+
+LIB2ADD += \
+	$(srcdir)/config/pru/lib2divQI.c \
+	$(srcdir)/config/pru/lib2divHI.c \
+	$(srcdir)/config/pru/lib2divSI.c \
+	$(srcdir)/config/pru/lib2bitcountHI.c \
+	$(srcdir)/config/pru/mpyll.S \
+	$(srcdir)/config/pru/gef.c \
+	$(srcdir)/config/pru/gtf.c \
+	$(srcdir)/config/pru/lef.c \
+	$(srcdir)/config/pru/ltf.c \
+	$(srcdir)/config/pru/eqf.c \
+	$(srcdir)/config/pru/ged.c \
+	$(srcdir)/config/pru/gtd.c \
+	$(srcdir)/config/pru/led.c \
+	$(srcdir)/config/pru/ltd.c \
+	$(srcdir)/config/pru/eqd.c \
+	$(srcdir)/config/pru/asri.c
+
+HOST_LIBGCC2_CFLAGS += -Os -ffunction-sections -fdata-sections
+
+LIB2FUNCS_EXCLUDE = _muldi3
+
+SHLIB_MAPFILES += $(srcdir)/config/pru/libgcc-eabi.ver
+# Local Variables:
+# mode: Makefile
+# End: