initial import

53 files changed, 1683 insertions, 0 deletions

diff --git a/sysdeps/m68k/Implies b/sysdeps/m68k/Implies
new file mode 100644
index 0000000000..a67e1c2741
--- /dev/null
+++ b/sysdeps/m68k/Implies
@@ -0,0 +1,2 @@
+# 68k uses IEEE 754 floating point.
+ieee754
diff --git a/sysdeps/m68k/Makefile b/sysdeps/m68k/Makefile
new file mode 100644
index 0000000000..ea0c7d5cbb
--- /dev/null
+++ b/sysdeps/m68k/Makefile
@@ -0,0 +1,32 @@
+# Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public License
+# as published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+
+# The GNU C Library 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
+# Library General Public License for more details.
+
+# You should have received a copy of the GNU Library General Public
+# License along with the GNU C Library; see the file COPYING.LIB.  If
+# not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+# Cambridge, MA 02139, USA.
+
+# This uses MIT assembler syntax.  We have no convenient
+# way to choose a sysdep file based on MIT vs Motorola syntax.
+# No existing m68k ports use Motorola syntax.
+
+crypt := crypt.sun3	# Use crypt/crypt.sun3.S.
+
+# The mpn functions need this.  All existing 68k ports use MIT syntax.  If
+# a new port wants to use Motorola or Sony syntax, it can redefine this
+# variable.
+ifndef m68k-syntax-flag
+m68k-syntax-flag = -DMIT_SYNTAX
+endif
+
+asm-CPPFLAGS := $(asm-CPPFLAGS) $(m68k-syntax-flag)
diff --git a/sysdeps/m68k/__longjmp.c b/sysdeps/m68k/__longjmp.c
new file mode 100644
index 0000000000..4fc61084a0
--- /dev/null
+++ b/sysdeps/m68k/__longjmp.c
@@ -0,0 +1,56 @@
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <setjmp.h>
+#include <stdlib.h>
+
+/* Jump to the position specified by ENV, causing the
+   setjmp call there to return VAL, or 1 if VAL is 0.  */
+void
+__longjmp (__jmp_buf env, int val)
+{
+  /* This restores the FP and SP that setjmp's caller had,
+     and puts the return address into A0 and VAL into D0. */
+
+#if	defined(__HAVE_68881__) || defined(__HAVE_FPU__)
+  /* Restore the floating-point registers.  */
+  asm volatile("fmovem%.x %0, fp0-fp7" :
+	       /* No outputs.  */ : "g" (env[0].__fpregs[0]) :
+	       "fp0", "fp1", "fp2", "fp3", "fp4", "fp5", "fp6", "fp7");
+#endif
+
+  /* Put VAL in D0.  */
+  asm volatile("move%.l %0, d0" : /* No outputs.  */ :
+	       "g" (val == 0 ? 1 : val) : "d0");
+
+  asm volatile(/* Restore the data and address registers.  */
+	       "movem%.l %0, d1-d7/a0-a7\n"
+	       /* Return to setjmp's caller.  */
+#ifdef __motorola__
+	       "jmp (a0)"
+#else
+	       "jmp a0@"
+#endif
+	       : /* No outputs.  */ : "g" (env[0].__dregs[0])
+	       /* We don't bother with the clobbers,
+		  because this code always jumps out anyway.  */
+	       );
+
+  /* This call avoids `volatile function does return' warnings.  */
+  abort ();
+}
diff --git a/sysdeps/m68k/bsd-_setjmp.S b/sysdeps/m68k/bsd-_setjmp.S
new file mode 100644
index 0000000000..a0b639306d
--- /dev/null
+++ b/sysdeps/m68k/bsd-_setjmp.S
@@ -0,0 +1,42 @@
+/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'.  m68k version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
+   We cannot do it in C because it must be a tail-call, so frame-unwinding
+   in setjmp doesn't clobber the state restored by longjmp.  */
+
+#include <sysdep.h>
+
+#ifdef MOTOROLA_SYNTAX
+#define d0 %d0
+#define d1 %d1
+#define PUSH(reg)	move.l reg, -(%esp)
+#define POP(reg)	move.l (%esp)+, reg
+#else
+#define PUSH(reg)	movel reg, sp@-
+#define POP(reg)	movel sp@+, reg
+#endif
+
+ENTRY (_setjmp)
+	POP (d0)		/* Pop return PC.  */
+	POP (d1)		/* Pop jmp_buf argument.  */
+	PUSH (#0)		/* Push second argument of zero.  */
+	PUSH (d1)		/* Push back first argument.  */
+	PUSH (d0)		/* Push back return PC.  */
+	jmp C_SYMBOL_NAME (__sigsetjmp)
diff --git a/sysdeps/m68k/bsd-setjmp.S b/sysdeps/m68k/bsd-setjmp.S
new file mode 100644
index 0000000000..d218b44279
--- /dev/null
+++ b/sysdeps/m68k/bsd-setjmp.S
@@ -0,0 +1,42 @@
+/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'.  m68k version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
+   We cannot do it in C because it must be a tail-call, so frame-unwinding
+   in setjmp doesn't clobber the state restored by longjmp.  */
+
+#include <sysdep.h>
+
+#ifdef MOTOROLA_SYNTAX
+#define d0 %d0
+#define d1 %d1
+#define PUSH(reg)	move.l reg, -(%esp)
+#define POP(reg)	move.l (%esp)+, reg
+#else
+#define PUSH(reg)	movel reg, sp@-
+#define POP(reg)	movel sp@+, reg
+#endif
+
+ENTRY (setjmp)
+	POP (d0)		/* Pop return PC.  */
+	POP (d1)		/* Pop jmp_buf argument.  */
+	PUSH (#1)		/* Push second argument of one.  */
+	PUSH (d1)		/* Push back first argument.  */
+	PUSH (d0)		/* Push back return PC.  */
+	jmp C_SYMBOL_NAME (__sigsetjmp)
diff --git a/sysdeps/m68k/bytesex.h b/sysdeps/m68k/bytesex.h
new file mode 100644
index 0000000000..6f985293f2
--- /dev/null
+++ b/sysdeps/m68k/bytesex.h
@@ -0,0 +1,3 @@
+/* m68k is big-endian.  */
+
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/sysdeps/m68k/ffs.c b/sysdeps/m68k/ffs.c
new file mode 100644
index 0000000000..d9ec2b1ced
--- /dev/null
+++ b/sysdeps/m68k/ffs.c
@@ -0,0 +1,42 @@
+/* ffs -- find first set bit in a word, counted from least significant end.
+   For mc68020, mc68030, mc68040.
+   Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+   Contributed by Torbjorn Granlund (tege@sics.se).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h> 
+#include <string.h>
+
+#undef	ffs
+
+#if	defined (__GNUC__) && defined (__mc68020__)
+
+int
+DEFUN(ffs, (x), int x)
+{
+  int cnt;
+
+  asm("bfffo %1{#0:#0},%0" : "=d" (cnt) : "rm" (x & -x));
+
+  return 32 - cnt;
+}
+
+#else
+
+#include <sysdeps/generic/ffs.c>
+
+#endif
diff --git a/sysdeps/m68k/fpu/Makefile b/sysdeps/m68k/fpu/Makefile
new file mode 100644
index 0000000000..42db6381d3
--- /dev/null
+++ b/sysdeps/m68k/fpu/Makefile
@@ -0,0 +1,11 @@
+ifeq	($(subdir),math)
+ifndef	math-twiddled
+
+# Avoid twiddling in generic/Makefile.
+math-twiddled := t
+
+endif
+
+bsdmath_dirs := $(bsdmath_dirs) mc68881
+
+endif
diff --git a/sysdeps/m68k/fpu/__math.h b/sysdeps/m68k/fpu/__math.h
new file mode 100644
index 0000000000..a9ae2d966c
--- /dev/null
+++ b/sysdeps/m68k/fpu/__math.h
@@ -0,0 +1,168 @@
+/* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifdef	__GNUC__
+
+#include <sys/cdefs.h>
+
+#ifdef	__NO_MATH_INLINES
+/* This is used when defining the functions themselves.  Define them with
+   __ names, and with `static inline' instead of `extern inline' so the