3 files changed, 181 insertions, 0 deletions
diff --git a/libgcc/config/m32c/lib2funcs.c b/libgcc/config/m32c/lib2funcs.c
new file mode 100644
index 0000000..274affc
--- /dev/null
+++ b/libgcc/config/m32c/lib2funcs.c
@@ -0,0 +1,134 @@
+/* libgcc routines for R8C/M16C/M32C
+   Copyright (C) 2005, 2009
+   Free Software Foundation, Inc.
+   Contributed by Red Hat.
+
+   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           word_type     __attribute__ ((mode (__word__)));
+
+uint32_type udivmodsi4 (uint32_type, uint32_type, word_type);
+sint32_type __divsi3   (sint32_type, sint32_type);
+sint32_type __modsi3   (sint32_type, sint32_type);
+
+uint32_type
+udivmodsi4 (uint32_type num, uint32_type den, word_type modwanted)
+{
+  uint32_type bit = 1;
+  uint32_type res = 0;
+
+  while (den < num && bit && !(den & (1L << 31)))
+    {
+      den <<= 1;
+      bit <<= 1;
+    }
+  while (bit)
+    {
+      if (num >= den)
+	{
+	  num -= den;
+	  res |= bit;
+	}
+      bit >>= 1;
+      den >>= 1;
+    }
+  if (modwanted)
+    return num;
+  return res;
+}
+
+sint32_type
+__divsi3 (sint32_type a, sint32_type b)
+{
+  word_type neg = 0;
+  sint32_type res;
+
+  if (a < 0)
+    {
+      a = -a;
+      neg = !neg;
+    }
+
+  if (b < 0)
+    {
+      b = -b;
+      neg = !neg;
+    }
+
+  res = udivmodsi4 (a, b, 0);
+
+  if (neg)
+    res = -res;
+
+  return res;
+}
+
+sint32_type
+__modsi3 (sint32_type a, sint32_type b)
+{
+  word_type neg = 0;
+  sint32_type res;
+
+  if (a < 0)
+    {
+      a = -a;
+      neg = 1;
+    }
+
+  if (b < 0)
+    b = -b;
+
+  res = udivmodsi4 (a, b, 1);
+
+  if (neg)
+    res = -res;
+
+  return res;
+}
+
+/* See the comment by the definition of LIBGCC2_UNITS_PER_WORD in
+   m32c.h for why we are creating extra versions of some of the
+   functions defined in libgcc2.c.  */
+
+#define LIBGCC2_UNITS_PER_WORD 2
+
+#define L_clzsi2
+#define L_ctzsi2
+#define L_ffssi2
+#define L_paritysi2
+#define L_popcountsi2
+
+#include "libgcc2.c"
+
+uint32_type
+__udivsi3 (uint32_type a, uint32_type b)
+{
+  return udivmodsi4 (a, b, 0);
+}
+
+uint32_type
+__umoddi3 (uint32_type a, uint32_type b)
+{
+  return udivmodsi4 (a, b, 1);
+}
diff --git a/libgcc/config/m32c/t-m32c b/libgcc/config/m32c/t-m32c
index d214837..dac99ec 100644
--- a/libgcc/config/m32c/t-m32c
+++ b/libgcc/config/m32c/t-m32c
@@ -7,3 +7,7 @@ LIB1ASMFUNCS = \
 	__m32c_cmpsi2 \
 	__m32c_ucmpsi2 \
 	__m32c_jsri16
+
+LIB2ADD = $(srcdir)/config/m32c/lib2funcs.c \
+	  $(srcdir)/config/m32c/trapv.c
+
diff --git a/libgcc/config/m32c/trapv.c b/libgcc/config/m32c/trapv.c
new file mode 100644
index 0000000..0c8c174
--- /dev/null
+++ b/libgcc/config/m32c/trapv.c
@@ -0,0 +1,43 @@
+/* 16-bit trapping arithmetic routines for R8C/M16C/M32C
+   Copyright (C) 2009, 2011
+   Free Software Foundation, Inc.
+   Contributed by Red Hat.
+
+   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/>.  */
+
+/* See the comment by the definition of LIBGCC2_UNITS_PER_WORD in
+   m32c.h for why we are creating extra versions of some of the
+   functions defined in libgcc2.c.
+
+   Note - this file is separate from lib2funcs.c so that the following
+   functions will appear in the their object file.  This is necessary
+   because they call abort() which is defined in the C library whereas
+   the functions in lib2funcs.c are completely self sufficient.  */
+
+#define LIBGCC2_UNITS_PER_WORD 2
+
+#define L_mulvsi3
+#define L_negvsi2
+#define L_addvsi3
+#define L_subvsi3
+
+#include "libgcc2.c"