Thanks to James Graves <jgraves@deltamobile.com>, we now have

a first pass at getting m68k working.  It may have some problems,
but should now be fairly close.

76 files changed, 9039 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/m68k/Makefile b/libc/sysdeps/linux/m68k/Makefile
new file mode 100644
index 000000000..6ee35f780
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/Makefile
@@ -0,0 +1,57 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000 by Lineo, inc.
+#
+# This program 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.
+#
+# This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# Derived in part from the Linux-8086 C library, the GNU C Library, and several
+# other sundry sources.  Files within this library are copyright by their
+# respective copyright holders.
+
+TOPDIR=../../../
+include $(TOPDIR)Rules.mak
+LIBC=$(TOPDIR)libc.a
+ASFLAGS=$(CFLAGS)
+
+# If you're looking for vfork(), it is defined in include/unistd.h
+
+SSRC=crt0.S setjmp.S # longjmp.S _start.S clone.S
+SOBJS=$(patsubst %.S,%.o, $(SSRC))
+
+CSRC=errno.c
+COBJS=$(patsubst %.c,%.o, $(CSRC))
+
+OBJS=$(SOBJS) $(COBJS)
+
+
+all: $(OBJS) $(LIBC)
+	cp crt0.o  $(TOPDIR)
+
+$(LIBC): ar-target
+
+ar-target: $(OBJS)
+	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
+
+$(SOBJS): 
+	$(CC) $(CFLAGS) $< -c $*.S -o $*.o
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(COBJS):
+	$(CC) $(CFLAGS) $< -c $*.c -o $*.o
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+clean:
+	rm -f *.[oa] *~ core
+
diff --git a/libc/sysdeps/linux/m68k/bits/byteswap.h b/libc/sysdeps/linux/m68k/bits/byteswap.h
new file mode 100644
index 000000000..41bbe5978
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/byteswap.h
@@ -0,0 +1,62 @@
+/* Macros to swap the order of bytes in integer values.  m68k version.
+   Copyright (C) 1997 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
+
+/* Swap bytes in 16 bit value.  We don't provide an assembler version
+   because GCC is smart enough to generate optimal assembler output, and
+   this allows for better cse.  */
+#define __bswap_16(x) \
+  ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+
+/* Swap bytes in 32 bit value.  */
+#define __bswap_constant_32(x) \
+  ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >>  8) | \
+   (((x) & 0x0000ff00) <<  8) | (((x) & 0x000000ff) << 24))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+# define __bswap_32(x) \
+  __extension__					\
+  ({ unsigned int __v;				\
+     if (__builtin_constant_p (x))		\
+       __v = __bswap_constant_32 (x);		\
+     else					\
+       __asm__ __volatile__ ("ror%.w %#8, %0;"	\
+			     "swap %0;"		\
+			     "ror%.w %#8, %0"	\
+			     : "=d" (__v)	\
+			     : "0" (x));	\
+     __v; })
+#else
+# define __bswap_32(x) __bswap_constant_32 (x)
+#endif
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value.  */
+# define __bswap_64(x) \
+  __extension__						\
+  ({ union { unsigned long long int __ll;		\
+	     unsigned long int __l[2]; } __v, __r;	\
+     __v.__ll = (x);					\
+     __r.__l[0] = __bswap_32 (__v.__l[1]);		\
+     __r.__l[1] = __bswap_32 (__v.__l[0]);		\
+     __r.__ll; })
+#endif
diff --git a/libc/sysdeps/linux/m68k/bits/cmathcalls.h b/libc/sysdeps/linux/m68k/bits/cmathcalls.h
new file mode 100644
index 000000000..f063042b0
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/cmathcalls.h
@@ -0,0 +1,157 @@
+/* Prototype declarations for complex math functions;
+   helper file for <complex.h>.
+   Copyright (C) 1997, 1998 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* NOTE: Because of the special way this file is used by <complex.h>, this
+   file must NOT be protected from multiple inclusion as header files
+   usually are.
+
+   This file provides prototype declarations for the math functions.
+   Most functions are declared using the macro:
+
+   __MATHCALL (NAME, (ARGS...));
+
+   This means there is a function `NAME' returning `double' and a function
+   `NAMEf' returning `float'.  Each place `_Mdouble_' appears in the
+   prototype, that is actually `double' in the prototype for `NAME' and
+   `float' in the prototype for `NAMEf'.  Reentrant variant functions are
+   called `NAME_r' and `NAMEf_r'.
+
+   Functions returning other types like `int' are declared using the macro:
+
+   __MATHDECL (TYPE, NAME, (ARGS...));
+
+   This is just like __MATHCALL but for a function returning `TYPE'
+   instead of `_Mdouble_'.  In all of these cases, there is still
+   both a `NAME' and a `NAMEf' that takes `float' arguments.  */
+
+#ifndef _COMPLEX_H
+#error "Never use <bits/cmathcalls.h> directly; include <complex.h> instead."
+#endif
+
+#define _Mdouble_complex_ _Mdouble_ _Complex
+
+
+/* Trigonometric functions.  */
+
+/* Arc cosine of Z.  */
+__MATHCALL (cacos, (_Mdouble_complex_ __z));
+/* Arc sine of Z.  */
+__MATHCALL (casin, (_Mdouble_complex_ __z));
+/* Arc tangent of Z.  */
+__MATHCALL (catan, (_Mdouble_complex_ __z));
+
+/* Cosine of Z.  */
+__MATHCALL (ccos, (_Mdouble_complex_ __z));
+/* Sine of Z.  */
+__MATHCALL (csin, (_Mdouble_complex_ __z));
+/* Tangent of Z.  */
+__MATHCALL (ctan, (_Mdouble_complex_ __z));
+
+
+/* Hyperbolic functions.  */
+
+/* Hyperbolic arc cosine of Z.  */
+__MATHCALL (cacosh, (_Mdouble_complex_ __z));
+/* Hyperbolic arc sine of Z.  */
+__MATHCALL (casinh, (_Mdouble_complex_ __z));
+/* Hyperbolic arc tangent of Z.  */
+__MATHCALL (catanh, (_Mdouble_complex_ __z));
+
+/* Hyperbolic cosine of Z.  */
+__MATHCALL (ccosh, (_Mdouble_complex_ __z));
+/* Hyperbolic sine of Z.  */
+__MATHCALL (csinh, (_Mdouble_complex_ __z));
+/* Hyperbolic tangent of Z.  */
+__MATHCALL (ctanh, (_Mdouble_complex_ __z));
+
+
+/* Exponential and logarithmic functions.  */
+
+/* Exponential function of Z.  */
+__MATHCALL (cexp, (_Mdouble_complex_ __z));
+
+/* Natural logarithm of Z.  */
+__MATHCALL (clog, (_Mdouble_complex_ __z));
+
+#ifdef __USE_GNU
+/* The base 10 logarithm is not defined by the standard but to implement
+   the standard C++ library it is handy.  */
+__MATHCALL (clog10, (_Mdouble_complex_ __z));
+#endif
+
+/* Power functions.  */
+
+/* Return X to the Y power.  */
+__MATHCALL (cpow, (_Mdouble_complex_ __x, _Mdouble_complex_ __y));
+
+/* Return the square root of Z.  */
+__MATHCALL (csqrt, (_Mdouble_complex_ __z));
+
+
+/* Absolute value, conjugates, and projection.  */
+
+/* Absolute value of Z.  */
+__MATHDECL (_Mdouble_,cabs, (_Mdouble_complex_ __z));
+
+/* Argument value of Z.  */
+__MATHDECL (_Mdouble_,carg, (_Mdouble_complex_ __z));
+
+/* Complex conjugate of Z.  */
+__MATHCALL (conj, (_Mdouble_complex_ __z));
+
+/* Projection of Z onto the Riemann sphere.  */
+__MATHCALL (cproj, (_Mdouble_complex_ __z));
+
+
+/* Decomposing complex values.  */
+
+/* Imaginary part of Z.  */
+__MATHDECL (_Mdouble_,cimag, (_Mdouble_complex_ __z));
+
+/* Real part of Z.  */
+__MATHDECL (_Mdouble_,creal, (_Mdouble_complex_ __z));
+
+
+/* Now some optimized versions.  GCC has handy notations for these
+   functions.  */
+#if defined __GNUC__ && defined __OPTIMIZE__
+
+/* Imaginary part of Z.  */
+extern __inline _Mdouble_
+__MATH_PRECNAME(cimag) (_Mdouble_complex_ __z)
+{
+  return __imag__ __z;
+}
+
+/* Real part of Z.  */
+extern __inline _Mdouble_
+__MATH_PRECNAME(creal) (_Mdouble_complex_ __z)
+{
+  return __real__ __z;
+}
+
+/* Complex conjugate of Z.  */
+extern __inline _Mdouble_complex_
+__MATH_PRECNAME(conj) (_Mdouble_complex_ __z)
+{
+  return ~__z;
+}
+
+#endif
diff --git a/libc/sysdeps/linux/m68k/bits/confname.h b/libc/sysdeps/linux/m68k/bits/confname.h
new file mode 100644
index 000000000..229088d67
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/confname.h
@@ -0,0 +1,408 @@
+/* `sysconf', `pathconf', and `confstr' NAME values.  Generic version.
+   Copyright (C) 1993, 1995, 1996, 1997, 1998 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _UNISTD_H
+# error "Never use <bits/confname.h> directly; include <unistd.h> instead."
+#endif
+
+/* Values for the NAME argument to `pathconf' and `fpathconf'.  */
+enum
+  {
+    _PC_LINK_MAX,
+#define	_PC_LINK_MAX			_PC_LINK_MAX
+    _PC_MAX_CANON,
+#define	_PC_MAX_CANON			_PC_MAX_CANON
+    _PC_MAX_INPUT,
+#define	_PC_MAX_INPUT			_PC_MAX_INPUT
+    _PC_NAME_MAX,
+#define	_PC_NAME_MAX			_PC_NAME_MAX
+    _PC_PATH_MAX,
+#define	_PC_PATH_MAX			_PC_PATH_MAX
+    _PC_PIPE_BUF,
+#define	_PC_PIPE_BUF			_PC_PIPE_BUF
+    _PC_CHOWN_RESTRICTED,
+#define	_PC_CHOWN_RESTRICTED		_PC_CHOWN_RESTRICTED
+    _PC_NO_TRUNC,
+#define	_PC_NO_TRUNC			_PC_NO_TRUNC
+    _PC_VDISABLE,
+#define _PC_VDISABLE			_PC_VDISABLE
+    _PC_SYNC_IO,
+#define	_PC_SYNC_IO			_PC_SYNC_IO
+    _PC_ASYNC_IO,
+#define	_PC_ASYNC_IO			_PC_ASYNC_IO
+    _PC_PRIO_IO,
+#define	_PC_PRIO_IO			_PC_PRIO_IO
+    _PC_SOCK_MAXBUF,
+#define	_PC_SOCK_MAXBUF			_PC_SOCK_MAXBUF
+    _PC_FILESIZEBITS
+#define _PC_FILESIZEBITS		_PC_FILESIZEBITS
+  };
+
+/* Values for the argument to `sysconf'.  */
+enum
+  {
+    _SC_ARG_MAX,
+#define	_SC_ARG_MAX			_SC_ARG_MAX
+    _SC_CHILD_MAX,
+#define	_SC_CHILD_MAX			_SC_CHILD_MAX
+    _SC_CLK_TCK,
+#define	_SC_CLK_TCK			_SC_CLK_TCK
+    _SC_NGROUPS_MAX,
+#define	_SC_NGROUPS_MAX			_SC_NGROUPS_MAX
+    _SC_OPEN_MAX,
+#define	_SC_OPEN_MAX			_SC_OPEN_MAX
+    _SC_STREAM_MAX,
+#define	_SC_STREAM_MAX			_SC_STREAM_MAX
+    _SC_TZNAME_MAX,
+#define	_SC_TZNAME_MAX			_SC_TZNAME_MAX
+    _SC_JOB_CONTROL,
+#define	_SC_JOB_CONTROL			_SC_JOB_CONTROL
+    _SC_SAVED_IDS,
+#define	_SC_SAVED_IDS			_SC_SAVED_IDS
+    _SC_REALTIME_SIGNALS,
+#define	_SC_REALTIME_SIGNALS		_SC_REALTIME_SIGNALS
+    _SC_PRIORITY_SCHEDULING,
+#define	_SC_PRIORITY_SCHEDULING		_SC_PRIORITY_SCHEDULING
+    _SC_TIMERS,
+#define	_SC_TIMERS			_SC_TIMERS
+    _SC_ASYNCHRONOUS_IO,
+#define	_SC_ASYNCHRONOUS_IO		_SC_ASYNCHRONOUS_IO
+    _SC_PRIORITIZED_IO,
+#define	_SC_PRIORITIZED_IO		_SC_PRIORITIZED_IO
+    _SC_SYNCHRONIZED_IO,
+#define	_SC_SYNCHRONIZED_IO		_SC_SYNCHRONIZED_IO
+    _SC_FSYNC,
+#define	_SC_FSYNC			_SC_FSYNC
+    _SC_MAPPED_FILES,
+#define	_SC_MAPPED_FILES		_SC_MAPPED_FILES
+    _SC_MEMLOCK,
+#define	_SC_MEMLOCK			_SC_MEMLOCK
+    _SC_MEMLOCK_RANGE,
+#define	_SC_MEMLOCK_RANGE		_SC_MEMLOCK_RANGE
+    _SC_MEMORY_PROTECTION,
+#define	_SC_MEMORY_PROTECTION		_SC_MEMORY_PROTECTION
+    _SC_MESSAGE_PASSING,
+#define	_SC_MESSAGE_PASSING		_SC_MESSAGE_PASSING
+    _SC_SEMAPHORES,
+#define	_SC_SEMAPHORES			_SC_SEMAPHORES
+    _SC_SHARED_MEMORY_OBJECTS,
+#define	_SC_SHARED_MEMORY_OBJECTS	_SC_SHARED_MEMORY_OBJECTS
+    _SC_AIO_LISTIO_MAX,
+#define	_SC_AIO_LISTIO_MAX		_SC_AIO_LISTIO_MAX
+    _SC_AIO_MAX,
+#define	_SC_AIO_MAX			_SC_AIO_MAX
+    _SC_AIO_PRIO_DELTA_MAX,
+#define	_SC_AIO_PRIO_DELTA_MAX		_SC_AIO_PRIO_DELTA_MAX
+    _SC_DELAYTIMER_MAX,
+#define	_SC_DELAYTIMER_MAX		_SC_DELAYTIMER_MAX
+    _SC_MQ_OPEN_MAX,
+#define	_SC_MQ_OPEN_MAX			_SC_MQ_OPEN_MAX
+    _SC_MQ_PRIO_MAX,
+#define	_SC_MQ_PRIO_MAX			_SC_MQ_PRIO_MAX
+    _SC_VERSION,
+#define	_SC_VERSION			_SC_VERSION
+    _SC_PAGESIZE,
+#define	_SC_PAGESIZE			_SC_PAGESIZE
+#define	_SC_PAGE_SIZE			_SC_PAGESIZE
+    _SC_RTSIG_MAX,
+#define	_SC_RTSIG_MAX			_SC_RTSIG_MAX
+    _SC_SEM_NSEMS_MAX,
+#define	_SC_SEM_NSEMS_MAX		_SC_SEM_NSEMS_MAX
+    _SC_SEM_VALUE_MAX,
+#define	_SC_SEM_VALUE_MAX		_SC_SEM_VALUE_MAX
+    _SC_SIGQUEUE_MAX,
+#define	_SC_SIGQUEUE_MAX		_SC_SIGQUEUE_MAX
+    _SC_TIMER_MAX,
+#define	_SC_TIMER_MAX			_SC_TIMER_MAX
+
+    /* Values for the argument to `sysconf'
+       corresponding to _POSIX2_* symbols.  */
+    _SC_BC_BASE_MAX,
+#define	_SC_BC_BASE_MAX			_SC_BC_BASE_MAX
+    _SC_BC_DIM_MAX,
+#define	_SC_BC_DIM_MAX			_SC_