Add support for the Analog Devices Blackfin mmuless processor

29 files changed, 1897 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/bfin/Makefile b/libc/sysdeps/linux/bfin/Makefile
new file mode 100644
index 000000000..23a88f43d
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/Makefile
@@ -0,0 +1,86 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2004 Erik Andersen <andersen@uclibc.org>
+#
+# 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
+
+TOPDIR=../../../../
+include $(TOPDIR)Rules.mak
+ASFLAGS=$(CFLAGS)
+
+CRT0_SRC = crt0.S
+CRT0_OBJ = crt0.o
+#CTOR_TARGETS=$(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o
+CTOR_TARGETS=
+
+SSRC= __longjmp.S setjmp.S bsd-_setjmp.S vfork.S
+SOBJS=$(patsubst %.S,%.o, $(SSRC))
+
+CSRC=brk.c bsdsetjmp.c clone.c syscall.c
+COBJS=$(patsubst %.c,%.o, $(CSRC))
+
+OBJS=$(SOBJS) $(MOBJ) $(COBJS)
+
+all: $(OBJS) $(LIBC)
+
+$(LIBC): ar-target
+
+ar-target: $(OBJS) $(CRT0_OBJ) $(CTOR_TARGETS)
+	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
+	mkdir -p $(TOPDIR)lib/
+	cp $(CRT0_OBJ) $(TOPDIR)lib/
+
+$(CRT0_OBJ): $(CRT0_SRC)
+	$(CC) $(CFLAGS) -DL_$* $< -c -o $*.o
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(SOBJS): %.o : %.S
+	$(CC) $(CFLAGS) -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(COBJS): %.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
+crti.o: crti.S
+	$(CC) $(CFLAGS) -c crti.S -o crti.o
+
+$(TOPDIR)lib/crti.o: crti.o
+	$(INSTALL) -d $(TOPDIR)lib/
+	cp crti.o $(TOPDIR)lib/
+
+crtn.o: crtn.S
+	$(CC) $(CFLAGS) -c crtn.S -o crtn.o
+
+$(TOPDIR)lib/crtn.o: crtn.o
+	$(INSTALL) -d $(TOPDIR)lib/
+	cp crtn.o $(TOPDIR)lib/
+else
+$(TOPDIR)lib/crti.o:
+	$(INSTALL) -d $(TOPDIR)lib/
+	$(AR) $(ARFLAGS) $(TOPDIR)lib/crti.o
+$(TOPDIR)lib/crtn.o:
+	$(INSTALL) -d $(TOPDIR)lib/
+	$(AR) $(ARFLAGS) $(TOPDIR)lib/crtn.o
+endif
+
+headers:
+
+clean:
+	$(RM) *.[oa] *~ core
+	$(RM) bits/sysnum.h
+	$(RM) $(TOPDIR)lib/crt0.o
+
diff --git a/libc/sysdeps/linux/bfin/README.bfin b/libc/sysdeps/linux/bfin/README.bfin
new file mode 100644
index 000000000..e27b41dd7
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/README.bfin
@@ -0,0 +1,21 @@
+README for uClibc on the blackfin architecture
+
+developed/tested with bfin-elf-gcc 3.4.1, from
+
+Configuration:
+
+	Read and edit the Config file, carefully.
+
+	TARGET_ARCH=blackfin
+	CROSS = bfin-elf-
+	CC = $(CROSS)gcc
+	STRIPTOOL = $(CROSS)strip
+	KERNEL_SOURCE= your linux 2.6.8 kernel source tree	
+	HAS_MMU = false
+	HAS_FLOATS = false
+	MALLOC = malloc-simple
+	
+Problems:
+	The regular malloc library is broken. Use simple-malloc.
+
+TODO:
diff --git a/libc/sysdeps/linux/bfin/__longjmp.S b/libc/sysdeps/linux/bfin/__longjmp.S
new file mode 100644
index 000000000..4c5189976
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/__longjmp.S
@@ -0,0 +1,110 @@
+/*
+ * longjmp for the Blackfin project
+ *
+ * Copyright (C) 2004,
+ * Based on code from Analog Devices.
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License.  See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ */
+#include <features.h>
+#define _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+
+.globl ___longjmp;
+.align 4;
+
+___longjmp:
+	P0 = R0;
+	R0 = [P0 + 0x00];
+	[--SP] = R0;		// Put P0 on the stack
+
+	P1 = [P0 + 0x04];
+	P2 = [P0 + 0x08];
+	P3 = [P0 + 0x0C];
+	P4 = [P0 + 0x10];
+	P5 = [P0 + 0x14];
+
+	FP = [P0 + 0x18];
+	R0 = [SP++];		// Grab P0 from old stack
+	SP = [P0 + 0x1C];	// Update Stack Pointer
+	[--SP] = R0;		// Put P0 on new stack
+	[--SP] = R1;		// Put VAL arg on new stack
+
+	R0 = [P0 + 0x20];	// Data Registers
+	R1 = [P0 + 0x24];
+	R2 = [P0 + 0x28];
+	R3 = [P0 + 0x2C];
+	R4 = [P0 + 0x30];
+	R5 = [P0 + 0x34];
+	R6 = [P0 + 0x38];
+	R7 = [P0 + 0x3C];
+
+	R0 = [P0 + 0x40];
+	ASTAT = R0;
+
+	R0 = [P0 + 0x44];	// Loop Counters
+	LC0 = R0;
+	R0 = [P0 + 0x48];
+	LC1 = R0;
+
+	R0 = [P0 + 0x4C];	// Accumulators
+	A0.W = R0;
+	R0 = [P0 + 0x50];
+	A0.X = R0;
+	R0 = [P0 + 0x54];
+	A1.W = R0;
+	R0 = [P0 + 0x58];
+	A1.X = R0;
+
+	R0 = [P0 + 0x5C];	// Index Registers
+	I0 = R0;
+	R0 = [P0 + 0x60];
+	I1 = R0;
+	R0 = [P0 + 0x64];
+	I2 = R0;
+	R0 = [P0 + 0x68];
+	I3 = R0;
+
+	R0 = [P0 + 0x6C];	// Modifier Registers
+	M0 = R0;
+	R0 = [P0 + 0x70];
+	M1 = R0;
+	R0 = [P0 + 0x74];
+	M2 = R0;
+	R0 = [P0 + 0x78];
+	M3 = R0;
+
+	R0 = [P0 + 0x7C];	// Length Registers
+	L0 = R0;
+	R0 = [P0 + 0x80];
+	L1 = R0;
+	R0 = [P0 + 0x84];
+	L2 = R0;
+	R0 = [P0 + 0x88];
+	L3 = R0;
+
+	R0 = [P0 + 0x8C];	// Base Registers
+	B0 = R0;
+	R0 = [P0 + 0x90];
+	B1 = R0;
+	R0 = [P0 + 0x94];
+	B2 = R0;
+	R0 = [P0 + 0x98];
+	B3 = R0;
+
+	R0 = [P0 + 0x9C];	// Return Address (PC)
+	RETS = R0;
+
+	R0 = [SP++];
+	P0 = [SP++];
+
+	CC = R0 == 0;
+	IF !CC JUMP finished;
+	R0 = 1;
+finished:
+	RTS;
+___longjmp.end:
diff --git a/libc/sysdeps/linux/bfin/bits/endian.h b/libc/sysdeps/linux/bfin/bits/endian.h
new file mode 100644
index 000000000..8a36cf707
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/endian.h
@@ -0,0 +1,7 @@
+/* Blackfin is Little-endian.  */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/libc/sysdeps/linux/bfin/bits/fcntl.h b/libc/sysdeps/linux/bfin/bits/fcntl.h
new file mode 100644
index 000000000..4b41b4715
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/fcntl.h
@@ -0,0 +1,180 @@
+/* O_*, F_*, FD_* bit values for Linux.
+   Copyright (C) 2000 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+
+#include <sys/types.h>
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+   located on an ext2 file system */
+#define O_ACCMODE	   0003
+#define O_RDONLY	     00
+#define O_WRONLY	     01
+#define O_RDWR		     02
+#define O_CREAT		   0100	/* not fcntl */
+#define O_EXCL		   0200	/* not fcntl */
+#define O_NOCTTY	   0400	/* not fcntl */
+#define O_TRUNC		  01000	/* not fcntl */
+#define O_APPEND	  02000
+#define O_NONBLOCK	  04000
+#define O_NDELAY	O_NONBLOCK
+#define O_SYNC		 010000
+#define O_FSYNC		 O_SYNC
+#define O_ASYNC		 020000
+
+#ifdef __USE_GNU
+# define O_DIRECTORY	 040000	/* Must be a directory.	 */
+# define O_NOFOLLOW	0100000	/* Do not follow links.	 */
+# define O_DIRECT	0200000	/* Direct disk access.	*/
+# define O_STREAMING	04000000/* streaming access */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+   We define the symbols here but let them do the same as O_SYNC since
+   this is a superset.	*/
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC	O_SYNC	/* Synchronize data.  */
+# define O_RSYNC	O_SYNC	/* Synchronize read operations.	 */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# define O_LARGEFILE	0400000
+#endif
+
+/* Values for the second argument to `fcntl'.  */
+#define F_DUPFD		0	/* Duplicate file descriptor.  */
+#define F_GETFD		1	/* Get file descriptor flags.  */
+#define F_SETFD		2	/* Set file descriptor flags.  */
+#define F_GETFL		3	/* Get file status flags.  */
+#define F_SETFL		4	/* Set file status flags.  */
+#ifndef __USE_FILE_OFFSET64
+# define F_GETLK	5	/* Get record locking info.  */
+# define F_SETLK	6	/* Set record locking info (non-blocking).  */
+# define F_SETLKW	7	/* Set record locking info (blocking).	*/
+#else
+# define F_GETLK	F_GETLK64  /* Get record locking info.	*/
+# define F_SETLK	F_SETLK64  /* Set record locking info (non-blocking).*/
+# define F_SETLKW	F_SETLKW64 /* Set record locking info (blocking).  */
+#endif
+#define F_GETLK64	12	/* Get record locking info.  */
+#define F_SETLK64	13	/* Set record locking info (non-blocking).  */
+#define F_SETLKW64	14	/* Set record locking info (blocking).	*/
+
+#if defined __USE_BSD || defined __USE_XOPEN2K
+# define F_SETOWN	8	/* Get owner of socket (receiver of SIGIO).  */
+# define F_GETOWN	9	/* Set owner of socket (receiver of SIGIO).  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG	10	/* Set number of signal to be sent.  */
+# define F_GETSIG	11	/* Get number of signal to be sent.  */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE	1024	/* Set a lease.	 */
+# define F_GETLEASE	1025	/* Enquire what lease is active.  */
+# define F_NOTIFY	1026	/* Request notfications on a directory.	 */
+#endif
+
+/* For F_[GET|SET]FL.  */
+#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf().  */
+#define F_RDLCK		0	/* Read lock.  */
+#define F_WRLCK		1	/* Write lock.	*/
+#define F_UNLCK		2	/* Remove lock.	 */
+
+/* For old implementation of bsd flock().  */
+#define F_EXLCK		4	/* or 3 */
+#define F_SHLCK		8	/* or 4 */
+
+#ifdef __USE_BSD
+/* Operations for bsd flock(), also used by the kernel implementation.	*/
+# define LOCK_SH	1	/* shared lock */
+# define LOCK_EX	2	/* exclusive lock */
+# define LOCK_NB	4	/* or'd with one of the above to prevent
+				   blocking */
+# define LOCK_UN	8	/* remove lock */
+#endif
+
+#ifdef __USE_GNU
+# define LOCK_MAND	32	/* This is a mandatory flock:	*/
+# define LOCK_READ	64	/* ... which allows concurrent read operations.	 */
+# define LOCK_WRITE	128	/* ... which allows concurrent write operations.  */
+# define LOCK_RW	192	/* ... Which allows concurrent read & write operations.	 */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY.  */
+# define DN_ACCESS	0x00000001	/* File accessed.  */
+# define DN_MODIFY	0x00000002	/* File modified.  */
+# define DN_CREATE	0x00000004	/* File created.  */
+# define DN_DELETE	0x00000008	/* File removed.  */
+# define DN_RENAME	0x00000010	/* File renamed.  */
+# define DN_ATTRIB	0x00000020	/* File changed attibutes.  */
+# define DN_MULTISHOT	0x80000000	/* Don't remove notifier.  */
+#endif
+
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+#ifndef __USE_FILE_OFFSET64
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#else
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+#endif
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+
+#ifdef __USE_LARGEFILE64
+struct flock64
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.	*/
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off64_t l_start;	/* Offset where the lock begins.  */
+    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+   BSD systems which did not managed to hide these kernel macros.  */
+#ifdef	__USE_BSD
+# define FAPPEND	O_APPEND
+# define FFSYNC		O_FSYNC
+# define FASYNC		O_ASYNC
+# define FNONBLOCK	O_NONBLOCK
+# define FNDELAY	O_NDELAY
+#endif /* Use BSD.  */
+
+/* Advise to `posix_fadvise'.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_FADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_FADV_SEQUENTIAL	2 /* Expect sequential page references.	 */
+# define POSIX_FADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_FADV_DONTNEED	4 /* Don't need these pages.  */
+# define POSIX_FADV_NOREUSE	5 /* Data will be accessed once.  */
+#endif
diff --git a/libc/sysdeps/linux/bfin/bits/huge_val.h b/libc/sysdeps/linux/bfin/bits/huge_val.h
new file mode 100644
index 000000000..f5f5b642a
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/huge_val.h
@@ -0,0 +1,103 @@
+/* `HUGE_VAL' constants for blackfin (where it is infinity).
+   Used by <stdlib.h> and <math.h> functions for overflow.
+   Copyright (C) 1992, 1995, 1996, 1997, 1999, 2000 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
+#endif
+
+#include <features.h>
+
+/* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
+
+#ifdef	__GNUC__
+
+# if __GNUC_PREREQ(2,96)
+
+#  define HUGE_VAL (__extension__ 0x1.0p2047)
+
+# else
+
+#  define HUGE_VAL \
+  (__extension__							      \
+   ((union { unsigned __l __attribute__((__mode__(__DI__))); double __d; })   \
+    { __l: 0x000000007ff00000ULL }).__d)
+
+# endif
+
+#else /* not GCC */
+
+# include <endian.h>
+
+typedef union { unsigned char __c[8]; double __d; } __huge_val_t;
+
+# if __BYTE_ORDER == __BIG_ENDIAN
+#  define __HUGE_VAL_bytes	{ 0, 0, 0, 0, 0x7f, 0xf0, 0, 0 }
+# endif
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define __HUGE_VAL_bytes	{ 0, 0, 0xf0, 0x7f, 0, 0, 0, 0 }
+# endif
+
+static __huge_val_t __huge_val = { __HUGE_VAL_bytes };
+# define HUGE_VAL	(__huge_val.__d)
+
+#endif	/* GCC.  */
+
+
+/* ISO C99 extensions: (float) HUGE_VALF and (long double) HUGE_VALL.  */
+
+#ifdef __USE_ISOC99
+
+# ifdef __GNUC__
+
+#  if __GNUC_PREREQ(2,96)
+
+#   define HUGE_VALF (__extension__ 0x1.0p255f)
+
+#  else
+
+#   define HUGE_VALF \
+  (__extension__							      \
+   ((union { unsigned __l __attribute__((__mode__(__SI__))); float __d; })    \
+    { __l: 0x7f800000UL }).__d)
+
+#  endif
+
+# else /* not GCC */
+
+typedef union { unsigned char __c[4]; float __f; } __huge_valf_t;
+
+#  if __BYTE_ORDER == __BIG_ENDIAN
+#   define __HUGE_VALF_bytes	{ 0x7f, 0x80, 0, 0 }
+#  endif
+#  if __BYTE_ORDER == __LITTLE_ENDIAN
+#   define __HUGE_VALF_bytes	{ 0, 0, 0x80, 0x7f }
+#  endif
+
+static __huge_valf_t __huge_valf = { __HUGE_VALF_bytes };
+#  define HUGE_VALF	(__huge_valf.__f)
+
+# endif	/* GCC.  */
+
+
+/* Generally there is no separate `long double' format and it is the
+   same as `double'.  */
+# define HUGE_VALL HUGE_VAL
+
+#endif /* __USE_ISOC99.  */
diff --git a/libc/sysdeps/linux/bfin/bits/kernel_stat.h b/libc/sysdeps/linux/bfin/bits/kernel_stat.h
new file mode 100644
index 000000000..f10f72ae1
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/kernel_stat.h
@@ -0,0 +1,57 @@
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+/* This file provides whatever this particular arch's kernel thinks 
+ * struct kernel_stat should look like...  It turns out each arch has a 
+ * different opinion on the subject... */
+
+struct kernel_stat {
+	unsigned short st_dev;
+	unsigned short __pad1;
+	unsigned long st_ino;
+	unsigned short st_mode;
+	unsigned short st_nlink;
+	unsigned short st_uid;
+	unsigned short st_gid;
+	unsigned short st_rdev;
+	unsigned short __pad2;
+	unsigned long  st_size;
+	unsigned long  st_blksize;
+	unsigned long  st_blocks;
+	unsigned long  st_atime;
+	unsigned long  __unused1;
+	unsigned long  st_mtime;
+	unsigned long  __unused2;
+	unsigned long  st_ctime;
+	unsigned long  __unused3;
+	unsigned long  __unused4;
+	unsigned long  __unused5;
+};
+
+struct kernel_stat64 {
+	unsigned char	__pad0[6];
+	unsigned short	st_dev;
+	unsigned char	__pad1[2];
+#define _HAVE_STAT64___ST_INO
+	unsigned long	__st_ino;
+	unsigned int	st_mode;
+	unsigned int	st_nlink;
+	unsigned long	st_uid;
+	unsigned long	st_gid;
+	unsigned char	__pad2[6];
+	unsigned short	st_rdev;
+	unsigned char	__pad3[2];
+	long long	st_size;
+	unsigned long	st_blksize;
+	unsigned long	__pad4;		/* future possible st_blocks high bits */
+	unsigned long	st_blocks;	/* Number 512-byte blocks allocated. */
+	unsigned long	st_atime;
+	unsigned long	__pad5;
+	unsigned long	st_mtime;
+	unsigned long	__pad6;
+	unsigned long	st_ctime;
+	unsigned long	__pad7;		/* will be high 32 bits of ctime someday */
+	unsigned long long	st_ino;
+};
+#endif	/*  _BITS_STAT_STRUCT_H */
+
diff --git a/libc/sysdeps/linux/bfin/bits/kernel_types.h b/libc/sysdeps/linux/bfin/bits/kernel_types.h
new file mode 100644
index 000000000..520daf184
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/kernel_types.h
@@ -0,0 +1,43 @@
+/* Note that we use the exact same include guard #define names
+ * as asm/posix_types.h.  This will avoid gratuitous conflicts 
+ * with the posix_types.h kernel header, and will ensure that 
+ * our private content, and not the kernel header, will win.
+ *  -Erik
+ */
+
+#ifndef __ARCH_BFIN_POSIX_TYPES_H
+#define __ARCH_BFIN_POSIX_TYPES_H
+typedef unsigned short	__kernel_dev_t;
+typedef unsigned long	__kernel_ino_t;
+typedef unsigned short	__kernel_mode_t;
+typedef unsigned short	__kernel_nlink_t;
+typedef long		__kernel_off_t;
+typedef int		__kernel_pid_t;
+typedef unsigned short	__kernel_ipc_pid_t;
+typedef unsigned short	__kernel_uid_t;
+typedef unsigned short	__kernel_gid_t;
+typedef unsigned int	__kernel_size_t;
+typedef int		__kernel_ssize_t;
+typedef int		__kernel_ptrdiff_t;
+typedef long		__kernel_time_t;
+typedef long		__kernel_suseconds_t;
+typedef long		__kernel_clock_t;
+typedef int		__kernel_daddr_t;
+typedef char *		__kernel_caddr_t;
+typedef unsigned short	__kernel_uid16_t;
+typedef unsigned short	__kernel_gid16_t;
+typedef unsigned int	__kernel_uid32_t;
+typedef unsigned int	__kernel_gid32_t;
+typedef unsigned short	__kernel_old_uid_t;
+typedef unsigned short	__kernel_old_gid_t;
+typedef long long	__kernel_loff_t;
+
+typedef struct {
+#ifdef __USE_ALL
+	int val[2];
+#else
+	int __val[2];
+#endif
+} __kernel_fsid_t;
+
+#endif /* __ARCH_BFIN_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/bfin/bits/mman.h b/libc/sysdeps/linux/bfin/bits/mman.h
new file mode 100644
index 000000000..0e0f8d113
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/mman.h
@@ -0,0 +1,93 @@
+/* Definitions for POSIX memory map interface.  Linux/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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+   But the kernel header is not namespace clean.  */
+
+
+/* Protections are chosen from these bits, OR'd together.  The
+   implementation does not necessarily support PROT_EXEC or PROT_WRITE
+   without PROT_READ.  The only guarantees are that no writing will be
+   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define PROT_READ	0x1		/* Page can be read.  */
+#define PROT_WRITE	0x2		/* Page can be written.  */
+#define PROT_EXEC	0x4		/* Page can be executed.  */
+#define PROT_NONE	0x0		/* Page can not be accessed.  */
+
+/* Sharing types (must choose one and only one of these).  */
+#define MAP_SHARED	0x01		/* Share changes.  */
+#define MAP_PRIVATE	0x02		/* Changes are private.  */
+#ifdef __USE_MISC
+# define MAP_TYPE	0x0f		/* Mask for type of mapping.  */
+#endif
+
+/* Other flags.  */
+#define MAP_FIXED	0x10		/* Interpret addr exactly.  */
+#ifdef __USE_MISC
+# define MAP_FILE	0
+# define MAP_ANONYMOUS	0x20		/* Don't use a file.  */
+# define MAP_ANON	MAP_ANONYMOUS
+#endif
+
+/* These are Linux-specific.  */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN	0x0100		/* Stack-like segment.  */
+# define MAP_DENYWRITE	0x0800		/* ETXTBSY */
+# define MAP_EXECUTABLE	0x1000		/* Mark it as an executable.  */
+# define MAP_LOCKED	0x2000		/* Lock the mapping.  */
+# define MAP_NORESERVE	0x4000		/* Don't check for reservations.  */
+#endif
+
+/* Flags to `msync'.  */
+#define MS_ASYNC	1		/* Sync memory asynchronously.  */
+#define MS_SYNC		4		/* Synchronous memory sync.  */
+#define MS_INVALIDATE	2		/* Invalidate the caches.  */
+
+/* Flags for `mlockall'.  */
+#define MCL_CURRENT	1		/* Lock all currently mapped pages.  */
+#define MCL_FUTURE	2		/* Lock all additions to address
+					   space.  */
+
+/* Flags for `mremap'.  */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE	1
+#endif
+
+/* Advice to `madvise'.  */
+#ifdef __USE_BSD
+# define MADV_NORMAL	 0	/* No further special treatment.  */
+# define MADV_RANDOM	 1	/* Expect random page references.  */
+# define MADV_SEQUENTIAL 2	/* Expect sequential page references.  */
+# define MADV_WILLNEED	 3	/* Will need these pages.  */
+# define MADV_DONTNEED	 4	/* Don't need these pages.  */
+#endif
+
+/* The POSIX people had to invent similar names for the same things.  */
+#ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL	0 /* No further special treatment.  */
+# define POSIX_MADV_RANDOM	1 /* Expect random page references.  */
+# define POSIX_MADV_SEQUENTIAL	2 /* Expect sequential page references.  */
+# define POSIX_MADV_WILLNEED	3 /* Will need these pages.  */
+# define POSIX_MADV_DONTNEED	4 /* Don't need these pages.  */
+#endif
diff --git a/libc/sysdeps/linux/bfin/bits/setjmp.h b/libc/sysdeps/linux/bfin/bits/setjmp.h
new file mode 100644
index 000000000..abb7db6a0
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/setjmp.h
@@ -0,0 +1,53 @@
+/* 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.  */
+
+/* Define the machine-dependent type `jmp_buf'.  bfin version.  Lineo, Inc. 2001*/
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef _ASM
+/* Jump buffer contains r7-r4, p5-p3, fp, sp and pc.  Other registers are not saved.  */
+typedef struct
+{
+	unsigned long __pregs[6];
+	unsigned long fp;
+	unsigned long sp;
+	unsigned long __rregs[8];
+	unsigned long astat;
+	unsigned long __lcregs[2];
+	unsigned long a0w;
+	unsigned long a0x;
+	unsigned long a1w;
+	unsigned long a1x;
+	unsigned long __iregs[4];
+	unsigned long __mregs[4];
+	unsigned long __lregs[4];
+	unsigned long __bregs[4];
+	unsigned long pc;
+}__jmp_buf[1];
+
+#endif
+
+#define __JMP_BUF_SP	8
+
+/* Test if longjmp to JMPBUF would unwind the frame
+   containing a local variable at ADDRESS.  */
+#define _JMPBUF_UNWINDS(jmpbuf, address) \
+  ((void *) (address) < (void *) (jmpbuf)->__pregs[6])
diff --git a/libc/sysdeps/linux/bfin/bits/sigcontextinfo.h b/libc/sysdeps/linux/bfin/bits/sigcontextinfo.h
new file mode 100644
index 000000000..b7e08cfc9
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/sigcontextinfo.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>, 1998.
+
+   The GNU C Library 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define SIGCONTEXT int _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx)	((void *) (ctx)->sc_pc)
+#define GET_FRAME(ctx)	((void *) __builtin_frame_address (1))
+#define GET_STACK(ctx)	((void *) (ctx)->sc_usp)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+  (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/bfin/bits/stackinfo.h b/libc/sysdeps/linux/bfin/bits/stackinfo.h
new file mode 100644
index 000000000..9e26de13f
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* This file contains a bit of information about the stack allocation
+   of the processor.  */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H	1
+
+/* On blackfin the stack grows down.  */
+#define _STACK_GROWS_DOWN	1
+
+#endif	/* stackinfo.h */
diff --git a/libc/sysdeps/linux/bfin/bits/syscalls.h b/libc/sysdeps/linux/bfin/bits/syscalls.h
new file mode 100644
index 000000000..62541b873
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/syscalls.h
@@ -0,0 +1,19 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+#include <features.h>
+
+/* Do something very evil for now.  Until we create our own syscall
+ * macros, short circuit bits/sysnum.h  and use asm/unistd.h instead */
+#include <asm/unistd.h>
+
+/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
+ * header files.  It also defines the traditional `SYS_<name>' macros for older
+ * programs.  */
+#include <bits/sysnum.h>
+
+#endif /* _BITS_SYSCALLS_H */
+
diff --git a/libc/sysdeps/linux/bfin/bits/wordsize.h b/libc/sysdeps/linux/bfin/bits/wordsize.h
new file mode 100644
index 000000000..ba643b60a
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bits/wordsize.h
@@ -0,0 +1,19 @@
+/* Copyright (C) 1999 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#define __WORDSIZE	32
diff --git a/libc/sysdeps/linux/bfin/brk.c b/libc/sysdeps/linux/bfin/brk.c
new file mode 100644
index 000000000..178124ed3
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/brk.c
@@ -0,0 +1,30 @@
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <errno.h>
+
+/* This must be initialized data because commons can't have aliases.  */
+void * __curbrk = 0;
+
+int brk (void *addr)
+{
+    void *newbrk;
+
+	__asm__ __volatile__(
+		"P0 = %2;\n\t"
+		"R0 = %1;\n\t"
+		"excpt 0;\n\t"
+		"%0 = R0;\n\t"
+		: "=r"(newbrk)
+		: "r"(addr), "i" (__NR_brk): "P0" );
+
+    __curbrk = newbrk;
+
+    if (newbrk < addr)
+    {
+	__set_errno (ENOMEM);
+	return -1;
+    }
+
+    return 0;
+}
diff --git a/libc/sysdeps/linux/bfin/bsd-_setjmp.S b/libc/sysdeps/linux/bfin/bsd-_setjmp.S
new file mode 100644
index 000000000..969515fa6
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bsd-_setjmp.S
@@ -0,0 +1,97 @@
+
+/* Copyright (C) 2002, David McCullough <davidm@snapgear.com> */
+/* This file is released under the LGPL, any version you like */
+
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+.globl _setjmp;
+.align 4;
+
+_setjmp:
+	[--SP] = P0;	// Save P0
+	P0 = R0;
+	R0 = [SP++];
+	[P0 + 0x00] = R0;	// Save saved P0
+	[P0 + 0x04] = P1;
+	[P0 + 0x08] = P2;
+	[P0 + 0x0C] = P3;
+	[P0 + 0x10] = P4;
+	[P0 + 0x14] = P5;
+
+	[P0 + 0x18] = FP;	// Frame Pointer
+	[P0 + 0x1C] = SP;	// Stack Pointer
+
+	[P0 + 0x20] = P0;	// Data Registers
+	[P0 + 0x24] = R1;
+	[P0 + 0x28] = R2;
+	[P0 + 0x2C] = R3;
+	[P0 + 0x30] = R4;
+	[P0 + 0x34] = R5;
+	[P0 + 0x38] = R6;
+	[P0 + 0x3C] = R7;
+
+	R0 = ASTAT;
+	[P0 + 0x40] = R0;
+
+	R0 = LC0;		// Loop Counters
+	[P0 + 0x44] = R0;
+	R0 = LC1;
+	[P0 + 0x48] = R0;
+
+	R0 = A0.W;		// Accumulators
+	[P0 + 0x4C] = R0;
+	R0 = A0.X;
+	[P0 + 0x50] = R0;
+	R0 = A1.W;
+	[P0 + 0x54] = R0;
+	R0 = A1.X;
+	[P0 + 0x58] = R0;
+
+	R0 = I0;		// Index Registers
+	[P0 + 0x5C] = R0;
+	R0 = I1;
+	[P0 + 0x60] = R0;
+	R0 = I2;
+	[P0 + 0x64] = R0;
+	R0 = I3;
+	[P0 + 0x68] = R0;
+
+	R0 = M0;		// Modifier Registers
+	[P0 + 0x6C] = R0;
+	R0 = M1;
+	[P0 + 0x70] = R0;
+	R0 = M2;
+	[P0 + 0x74] = R0;
+	R0 = M3;
+	[P0 + 0x78] = R0;
+
+	R0 = L0;		// Length Registers
+	[P0 + 0x7c] = R0;
+	R0 = L1;
+	[P0 + 0x80] = R0;
+	R0 = L2;
+	[P0 + 0x84] = R0;
+	R0 = L3;
+	[P0 + 0x88] = R0;
+
+	R0 = B0;		// Base Registers
+	[P0 + 0x8C] = R0;
+	R0 = B1;
+	[P0 + 0x90] = R0;
+	R0 = B2;
+	[P0 + 0x94] = R0;
+	R0 = B3;
+	[P0 + 0x98] = R0;
+
+	R0 = RETS;
+	[P0 + 0x9C] = R0;
+
+	R0 = [P0 + 0x20];
+	R0 = 0;
+
+	RTS;
+_setjmp.end:
+
+
diff --git a/libc/sysdeps/linux/bfin/bsdsetjmp.c b/libc/sysdeps/linux/bfin/bsdsetjmp.c
new file mode 100644
index 000000000..87de78a4c
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/bsdsetjmp.c
@@ -0,0 +1,100 @@
+/*
+ * setjmp for the Blackfin project
+ *
+ * Copyright (C) 2003,  Metrowerks
+ * Based on code from Analog Devices.
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License.  See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ */
+#include <setjmp.h>
+
+int setjmp(jmp_buf env){
+   __asm__ __volatile__("[--SP] = p0;\n\t"
+       "p0 = r0;\n\t"
+       "r0 = [SP++];\n\t"
+
+       "[p0++] = r0;\n\t"	/* GP address registers */
+       "[p0++] = p1;\n\t"
+       "[p0++] = p2;\n\t"
+       "[p0++] = p3;\n\t"
+       "[p0++] = p4;\n\t"
+       "[p0++] = p5;\n\t"
+
+       "[p0++] = FP;\n\t"       /* frame pointer */
+       "[p0++] = SP;\n\t"	/* stack pointer */
+
+       "[p0++] = p0;\n\t"	/* data regs */
+       "[p0++] = r1;\n\t"
+       "[p0++] = r2;\n\t"
+       "[p0++] = r3;\n\t"
+       "[p0++] = r4;\n\t"
+       "[p0++] = r5;\n\t"
+       "[p0++] = r6;\n\t"
+       "[p0++] = r7;\n\t"
+
+       "r0 = ASTAT;\n\t"
+       "[p0++] = r0;\n\t"
+
+       "r0 = LC0;\n\t"		/* loop counters */
+       "[p0++] = r0;\n\t"
+       "r0 = LC1;\n\t"
+       "[p0++] = r0;\n\t"
+
+       "r0 = A0.w;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0.l = A0.x;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = A1.w;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0.l = A1.x;\n\t"
+       "[p0++] = r0;\n\t"
+
+	       			/* Dag regs */
+       "r0 = i0;\n\t"		/* index registers */
+       "[p0++] = r0;\n\t"
+       "r0 = i1;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = i2;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = i3;\n\t"
+       "[p0++] = r0;\n\t"
+
+       "r0 = m0;\n\t"		/* modifier registers */
+       "[p0++] = r0;\n\t"
+       "r0 = m1;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = m2;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = m3;\n\t"
+       "[p0++] = r0;\n\t"
+
+       "r0 = l0;\n\t"	        /* length registers */
+       "[p0++] = r0;\n\t"
+       "r0 = l1;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = l2;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = l3;\n\t"
+       "[p0++] = r0;\n\t"
+
+       "r0 = b0;\n\t"	        /* base registers */
+       "[p0++] = r0;\n\t"
+       "r0 = b1;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = b2;\n\t"
+       "[p0++] = r0;\n\t"
+       "r0 = b3;\n\t"
+       "[p0++] = r0;\n\t"
+
+       "r0 = RETS;\n\t"		/* store return address */
+       "[p0++] = r0;\n\t"
+
+       "r0 = 0;\n\t"
+      :
+      :
+     );
+return 0;
+}
diff --git a/libc/sysdeps/linux/bfin/clone.c b/libc/sysdeps/linux/bfin/clone.c
new file mode 100644
index 000000000..746da8e22
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/clone.c
@@ -0,0 +1,39 @@
+/*
+ * libc/sysdeps/linux/bfin/clone.c -- `clone' syscall for linux/blackfin
+ *
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License.  See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ */
+
+#include <asm/unistd.h>
+
+int
+clone (int (*fn)(void *arg), void *child_stack, int flags, void *arg)
+{
+	register long rval = -1;
+
+	if (fn && child_stack) {
+
+	__asm__ __volatile__ (
+			"r1 = %2;"
+			"r0 = %3;"
+			"P0 = %1;"
+			"excpt 0;"	 /*Call sys_clone*/
+			"%0  = r0;"
+			"cc = r0 == 0;"
+			"if !cc jump xxx;"	/* if (rval != 0) skip to parent */
+			"r0 = %4;"
+			"p0 = %5;"
+			"call (p0);"	/* Call cloned function */
+			"p0 = %6;"
+			"excpt 0;"	/* Call sys_exit */
+			"xxx: nop;"
+			: "=d" (rval)
+			: "i" (__NR_clone), "a" (child_stack), "a" (flags), "a" (arg), "a" (fn), "i" (__NR_exit)
+			: "CC", "R0", "R1", "P0");
+	}
+	return rval;
+}
diff --git a/libc/sysdeps/linux/bfin/crt0.S b/libc/sysdeps/linux/bfin/crt0.S
new file mode 100644
index 000000000..4ddfd16b9
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/crt0.S
@@ -0,0 +1,68 @@
+/* Copyright (C) 1991, 1992 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.  */
+
+
+/* When we enter this piece of code, the user stack looks like this:
+*      argc            argument counter (integer)
+*      argv[0]         program name (pointer)
+*      argv[1...N]     program args (pointers)
+*      NULL
+*      env[0...N]      environment variables (pointers)
+*      NULL
+
+*   When we are done here, we want
+*	R0=argc
+*	R1=*argv[0]
+*	R2=*envp[0]
+*/
+
+.text
+.align 2
+.global _start;
+.type	_start,STT_FUNC;
+.global ___uClibc_main;
+.type	___uClibc_main,STT_FUNC;
+
+/* Stick in a dummy reference to main(), so that if an application
+ * is linking when the main() function is in a static library (.a)
+ * we can be sure that main() actually gets linked in */
+
+.type	_main,STT_FUNC;
+
+_start:
+
+/*	clear the frame pointer */
+	FP = 0;
+/*	Load register R0 (argc) from the stack to its final resting place */
+	P0 = SP;
+	R0 = [P0++];
+
+/*	Copy argv pointer into R1 -- which its final resting place */
+	R1 = P0;
+
+/*	Skip to the end of argv and put a pointer to the environment in R2 */
+	R2 = R0;
+	R2 <<= 2;
+	R2 += 4;
+	R2 = R1+R2;
+
+/*	Ok, now run uClibc's main() -- shouldn't return */
+	sp += -12;
+	jump.l	___uClibc_main;
+
diff --git a/libc/sysdeps/linux/bfin/crti.S b/libc/sysdeps/linux/bfin/crti.S
new file mode 100644
index 000000000..36897973e
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/crti.S
@@ -0,0 +1,30 @@
+.file "initfini.c";
+	.section .init
+	.section .fini
+
+.text;
+.align 2
+.global _dummy;
+.type _dummy, STT_FUNC;
+_dummy:
+	P2 = R0;
+	LINK 0;
+	SP += -12;
+	cc =P2==0;
+	if cc jump L$L$1;
+	SP += 12;
+	UNLINK;
+	jump (P2);
+L$L$1:
+	SP += 12;
+	UNLINK;
+	rts;
+	.size	_dummy, .-_dummy
+.align 2
+.global __init;
+.type __init, STT_FUNC;
+__init:
+	LINK 0;
+	SP += -12;
+
+	.align 2
diff --git a/libc/sysdeps/linux/bfin/crtn.S b/libc/sysdeps/linux/bfin/crtn.S
new file mode 100644
index 000000000..4f15aec50
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/crtn.S
@@ -0,0 +1,37 @@
+.file "initfini.c";
+	.section .init
+	.section .fini
+
+.text;
+.align 2
+.global _dummy;
+.type _dummy, STT_FUNC;
+_dummy:
+	P2 = R0;
+	LINK 0;
+	SP += -12;
+	cc =P2==0;
+	if cc jump L$L$1;
+	SP += 12;
+	UNLINK;
+	jump (P2);
+L$L$1:
+	SP += 12;
+	UNLINK;
+	rts;
+	.size	_dummy, .-_dummy
+.align 2
+.global __init;
+.type __init, STT_FUNC;
+	SP += 12;
+	UNLINK;
+	rts;
+	.size	__init, .-__init
+.align 2
+.global __fini;
+.type __fini, STT_FUNC;
+	SP += 12;
+	UNLINK;
+	rts;
+	.size	__fini, .-__fini
+	.ident	"GCC: (GNU) 3.4.1"
diff --git a/libc/sysdeps/linux/bfin/setjmp.S b/libc/sysdeps/linux/bfin/setjmp.S
new file mode 100644
index 000000000..9bb3ddc8b
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/setjmp.S
@@ -0,0 +1,105 @@
+
+/* Cetjmp for the Blackfin project
+ *
+ * Copyright (C) 2003,  Metrowerks
+ * Based on code from Analog Devices.
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License.  See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ */
+#define _ASM
+#define _SETJMP_H
+#include <bits/setjmp.h>
+
+.globl ___sigsetjmp;
+.align 4;
+
+___sigsetjmp:
+	[--SP] = P0;	/* Save P0 */
+	P0 = R0;
+	R0 = [SP++];
+	[P0 + 0x00] = R0;	/* Save saved P0 */
+	[P0 + 0x04] = P1;
+	[P0 + 0x08] = P2;
+	[P0 + 0x0C] = P3;
+	[P0 + 0x10] = P4;
+	[P0 + 0x14] = P5;
+
+	[P0 + 0x18] = FP;	/* Frame Pointer */
+	[P0 + 0x1C] = SP;	/* Stack Pointer */
+
+	[P0 + 0x20] = P0;	/* Data Registers */
+	[P0 + 0x24] = R1;
+	[P0 + 0x28] = R2;
+	[P0 + 0x2C] = R3;
+	[P0 + 0x30] = R4;
+	[P0 + 0x34] = R5;
+	[P0 + 0x38] = R6;
+	[P0 + 0x3C] = R7;
+
+	R0 = ASTAT;
+	[P0 + 0x40] = R0;
+
+	R0 = LC0;		/* Loop Counters */
+	[P0 + 0x44] = R0;
+	R0 = LC1;
+	[P0 + 0x48] = R0;
+
+	R0 = A0.W;		/* Accumulators */
+	[P0 + 0x4C] = R0;
+	R0 = A0.X;
+	[P0 + 0x50] = R0;
+	R0 = A1.W;
+	[P0 + 0x54] = R0;
+	R0 = A1.X;
+	[P0 + 0x58] = R0;
+
+	R0 = I0;		/* Index Registers */
+	[P0 + 0x5C] = R0;
+	R0 = I1;
+	[P0 + 0x60] = R0;
+	R0 = I2;
+	[P0 + 0x64] = R0;
+	R0 = I3;
+	[P0 + 0x68] = R0;
+
+	R0 = M0;		/* Modifier Registers */
+	[P0 + 0x6C] = R0;
+	R0 = M1;
+	[P0 + 0x70] = R0;
+	R0 = M2;
+	[P0 + 0x74] = R0;
+	R0 = M3;
+	[P0 + 0x78] = R0;
+
+	R0 = L0;		/* Length Registers */
+	[P0 + 0x7c] = R0;
+	R0 = L1;
+	[P0 + 0x80] = R0;
+	R0 = L2;
+	[P0 + 0x84] = R0;
+	R0 = L3;
+	[P0 + 0x88] = R0;
+
+	R0 = B0;		/* Base Registers */
+	[P0 + 0x8C] = R0;
+	R0 = B1;
+	[P0 + 0x90] = R0;
+	R0 = B2;
+	[P0 + 0x94] = R0;
+	R0 = B3;
+	[P0 + 0x98] = R0;
+
+	R0 = RETS;
+	[P0 + 0x9C] = R0;
+
+	R0 = [P0 + 0x20];
+	CC = R1 == 1;
+	IF CC JUMP finished;
+	CALL ___sigjmp_save;
+finished:
+	R0 = 0;
+	RTS;
+___sigsetjmp.end:
diff --git a/libc/sysdeps/linux/bfin/sys/elf.h b/libc/sysdeps/linux/bfin/sys/elf.h
new file mode 100644
index 000000000..d959cdca1
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/elf.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1998, 2000 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_ELF_H
+#define _SYS_ELF_H	1
+
+#warning "This header is obsolete; use <sys/procfs.h> instead."
+
+#include <sys/procfs.h>
+
+#endif	/* _SYS_ELF_H */
diff --git a/libc/sysdeps/linux/bfin/sys/io.h b/libc/sysdeps/linux/bfin/sys/io.h
new file mode 100644
index 000000000..68639902c
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/io.h
@@ -0,0 +1,48 @@
+/* Copyright (C) 1996, 1998, 1999 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef	_SYS_IO_H
+
+#define	_SYS_IO_H	1
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* If TURN_ON is TRUE, request for permission to do direct i/o on the
+   port numbers in the range [FROM,FROM+NUM-1].  Otherwise, turn I/O
+   permission off for that range.  This call requires root privileges.  */
+extern int ioperm (unsigned long int __from, unsigned long int __num,
+		   int __turn_on) __THROW;
+
+/* Set the I/O privilege level to LEVEL.  If LEVEL is nonzero,
+   permission to access any I/O port is granted.  This call requires
+   root privileges. */
+extern int iopl (int __level) __THROW;
+
+/* The functions that actually perform reads and writes.  */
+extern unsigned char inb (unsigned long int port) __THROW;
+extern unsigned short int inw (unsigned long int port) __THROW;
+extern unsigned long int inl (unsigned long int port) __THROW;
+
+extern void outb (unsigned char value, unsigned long int port) __THROW;
+extern void outw (unsigned short value, unsigned long int port) __THROW;
+extern void outl (unsigned long value, unsigned long int port) __THROW;
+
+__END_DECLS
+
+#endif /* _SYS_IO_H */
diff --git a/libc/sysdeps/linux/bfin/sys/procfs.h b/libc/sysdeps/linux/bfin/sys/procfs.h
new file mode 100644
index 000000000..a656d86b2
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/procfs.h
@@ -0,0 +1,125 @@
+/* Copyright (C) 1996, 1997, 1999, 2000, 2001 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H	1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+   systems.  It provides a definition of the core file format for ELF
+   used on Linux.  It doesn't have anything to do with the /proc file
+   system, even though Linux has one.
+
+   Anyway, the whole purpose of this file is for GDB and GDB only.
+   Don't read too much into it.  Don't use it for anything other than
+   GDB unless you know what you are doing.  */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register.  */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them.  We could have used `struct
+   user_regs_struct' directly in the typedef, but tradition says that
+   the register set is an array, which does have some peculiar
+   semantics, so leave it that way.  */
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Register set for the floating-point registers.  */
+typedef struct user_bfinfp_struct elf_fpregset_t;
+
+/* Signal info.  */
+struct elf_siginfo
+  {
+    int si_signo;			/* Signal number.  */
+    int si_code;			/* Extra code.  */
+    int si_errno;			/* Errno.  */
+  };
+
+
+/* Definitions to generate Intel SVR4-like core files.  These mostly
+   have the same names as the SVR4 types with "elf_" tacked on the
+   front to prevent clashes with Linux definitions, and the typedef
+   forms have been avoided.  This is mostly like the SVR4 structure,
+   but more Linuxy, with things that Linux does not support and which
+   GDB doesn't really use excluded.  */
+
+struct elf_prstatus
+  {
+    struct elf_siginfo pr_info;		/* Info associated with signal.  */
+    short int pr_cursig;		/* Current signal.  */
+    unsigned long int pr_sigpend;	/* Set of pending signals.  */
+    unsigned long int pr_sighold;	/* Set of held signals.  */
+    __pid_t pr_pid;
+    __pid_t pr_ppid;
+    __pid_t pr_pgrp;
+    __pid_t pr_sid;
+    struct timeval pr_utime;		/* User time.  */
+    struct timeval pr_stime;		/* System time.  */
+    struct timeval pr_cutime;		/* Cumulative user time.  */
+    struct timeval pr_cstime;		/* Cumulative system time.  */
+    elf_gregset_t pr_reg;		/* GP registers.  */
+    int pr_fpvalid;			/* True if math copro being used.  */
+  };
+
+
+#define ELF_PRARGSZ     (80)    /* Number of chars for args.  */
+
+struct elf_prpsinfo
+  {
+    char pr_state;			/* Numeric process state.  */
+    char pr_sname;			/* Char for pr_state.  */
+    char pr_zomb;			/* Zombie.  */
+    char pr_nice;			/* Nice val.  */
+    unsigned long int pr_flag;		/* Flags.  */
+    unsigned short int pr_uid;
+    unsigned short int pr_gid;
+    int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+    /* Lots missing */
+    char pr_fname[16];			/* Filename of executable.  */
+    char pr_psargs[ELF_PRARGSZ];	/* Initial part of arg list.  */
+  };
+
+
+/* The rest of this file provides the types for emulation of the
+   Solaris <proc_service.h> interfaces that should be implemented by
+   users of libthread_db.  */
+
+/* Addresses.  */
+typedef void *psaddr_t;
+
+/* Register sets.  Linux has different names.  */
+typedef elf_gregset_t prgregset_t;
+typedef elf_fpregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+   therefore have only one PID type.  */
+typedef __pid_t lwpid_t;
+
+/* Process status and info.  In the end we do provide typedefs for them.  */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif	/* sys/procfs.h */
diff --git a/libc/sysdeps/linux/bfin/sys/reg.h b/libc/sysdeps/linux/bfin/sys/reg.h
new file mode 100644
index 000000000..4ce6e15aa
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/reg.h
@@ -0,0 +1,133 @@
+/* Copyright (C) 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _SYS_REG_H
+#define _SYS_REG_H	1
+
+/* Index into an array of 4 byte integers returned from ptrace for
+   location of the users' stored general purpose registers. */
+
+enum
+{
+  PT_IPEND = 0,
+#define PT_IPEND PT_IPEND
+  PT_SYSCFG = 4,
+#define PT_SYSCFG PT_SYSCFG
+  PT_SR = 8,
+#define PT_SR PT_SR
+  PT_RETE = 12,
+#define PT_RETE PT_RETE
+  PT_RETN = 16,
+#define PT_RETN PT_RETN
+  PT_RETX = 20,
+#define PT_RETX PT_RETX
+  PT_PC = 24,
+#define PT_PC PT_PC
+  PT_RETS = 28,
+#define PT_RETS PT_RETS
+  PT_ASTAT = 32,
+#define PT_ASTAT PT_ASTAT
+  PT_LB1 = 40,
+#define PT_LB1 PT_LB1
+  PT_LB0 = 44,
+#define PT_LB0 PT_LB0
+  PT_LT1 = 48,
+#define PT_LT1 PT_LT1
+  PT_LT0 = 52,
+#define PT_LT0 PT_LT0
+  PT_LC1 = 56,
+#define PT_LC1 PT_LC1
+  PT_LC0 = 60,
+#define PT_LC0 PT_LC0
+  PT_A1W = 64,
+#define PT_A1W PT_A1W
+  PT_A1X = 68,
+#define PT_A1X PT_A1X
+  PT_A0W = 72,
+#define PT_A0W PT_A0W
+  PT_A0X = 76,
+#define PT_A0X PT_A0X
+  PT_B3 = 80,
+#define PT_B# PT_B3
+  PT_B2 = 84,
+#define PT_B2 PT_B2
+  PT_B1 = 88,
+#define PT_B1 PT_B1
+  PT_B0 = 92,
+#define PT_B0 PT_B0
+  PT_L3 = 96,
+#define PT_L3 PT_L3
+  PT_L2 = 100,
+#define PT_L2 PT_L2
+  PT_L1 = 104,
+#define PT_L1 PT_L1
+  PT_L0 = 108,
+#define PT_L0 PT_L0
+  PT_M3 = 112,
+#define PT_M3 PT_M3
+  PT_M2 = 116,
+#define PT_M2 PT_M2
+  PT_M1 = 120,
+#define PT_M1 PT_M1
+  PT_M0 = 124,
+#define PT_M0 PT_M0
+  PT_I3 = 128,
+#define PT_I3 PT_I3
+  PT_I2 = 132,
+#define PT_I2 PT_I2
+  PT_I1 = 136,
+#define PT_I1 PT_I1
+  PT_I0 = 140,
+#define PT_I0 PT_I0
+  PT_USP = 144,
+#define PT_USP PT_USP
+  PT_FP = 148,
+#define PT_FP PT_FP
+  PT_P5 = 152,
+#define PT_P5 PT_P5
+  PT_P4 = 156,
+#define PT_P4 PT_P4
+  PT_P3 = 160,
+#define PT_P3 PT_P3
+  PT_P2 = 164,
+#define PT_P2 PT_P2
+  PT_P1 = 168,
+#define PT_P1 PT_P1
+  PT_P0 = 172,
+#define PT_P0 PT_P0
+  PT_R7 = 176,
+#define PT_R7 PT_R7
+  PT_R6 = 180,
+#define PT_R6 PT_R6
+  PT_R5 = 184,
+#define PT_R5 PT_R5
+  PT_R4 = 188,
+#define PT_R4 PT_R4
+  PT_R3 = 192,
+#define PT_R3 PT_R3
+  PT_R2 = 196,
+#define PT_R2 PT_R2
+  PT_R1 = 200,
+#define PT_R1 PT_R1
+  PT_R0 = 204,
+#define PT_R0 PT_R0
+  PT_ORIG_R0 = 208,
+#define PT_ORIG_R0 PT_ORIG_R0
+};
+
+#endif	/* _SYS_REG_H */
diff --git a/libc/sysdeps/linux/bfin/sys/ucontext.h b/libc/sysdeps/linux/bfin/sys/ucontext.h
new file mode 100644
index 000000000..ac469daac
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/sys/ucontext.h
@@ -0,0 +1,153 @@
+/* Copyright (C) 1997, 1999, 2001 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 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.
+
+   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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* System V/blackfin ABI compliant context switching support.  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* Type for general register.  */
+typedef int greg_t;
+
+/* Number of general registers.  */
+#define NGREG	47
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+/* Number of each register is the `gregset_t' array.  */
+enum
+{
+  R0 = 0,
+#define R0	R0
+  R1 = 1,
+#define R1	R1
+  R2 = 2,
+#define R2	R2
+  R3 = 3,
+#define R3	R3
+  R4 = 4,
+#define R4	R4
+  R5 = 5,
+#define R5	R5
+  R6 = 6,
+#define R6	R6
+  R7 = 7,
+#define R7	R7
+  P0 = 8,
+#define P0	P0
+  P1 = 9,
+#define P1	P1
+  P2 = 10,
+#define P2	P2
+  P3 = 11,
+#define P3	P3
+  P4 = 12,
+#define P4	P4
+  P5 = 13,
+#define P5	P5
+  USP = 14,
+#define USP	USP
+  A0W = 15,
+#define A0W	A0W
+  A1W = 16,
+#define A1W	A1W
+  A0X = 17,
+#define A0X	A0X
+  A1X = 18,
+#define A1X	A1X
+  ASTAT = 19,
+#define ASTAT	ASTAT
+  RETS = 20,
+#define RETS	RETS
+  PC= 21,
+#define PC	PC
+  RETX = 22,
+#define RETX	RETX
+  FP = 23,
+#define FP	FP
+  I0 = 24,
+#define I0	I0
+  I1 = 25,
+#define I1	I1
+  I2 = 26,
+#define I2	I2
+  I3 = 27,
+#define I3	I3
+  M0 = 28,
+#define M0	M0
+  M1 = 29,
+#define M1	M1
+  M2 = 30,
+#define M2	M2
+  M3 = 31,
+#define M3	M3
+  L0 = 32,
+#define L0	L0
+  L1 = 33,
+#define L1	L1
+  L2 = 34,
+#define L2	L2
+  L3 = 35,
+#define L3	L3
+  B_0 = 36,
+#define B_0	B_0
+  B1 = 37,
+#define B1	B1
+  B2 = 38,
+#define B2	B2
+  B3 = 39,
+#define B3	B3
+  LC0 = 40,
+#define LC0	LC0
+  LC1 = 41,
+#define LC1	LC1
+  LT0 = 42,
+#define LT0	LT0
+  LT1 = 43,
+#define LT1	LT1
+  LB0 = 44,
+#define LB0	LB0
+  LB1 = 45,
+#define LB1	LB1
+  SEQSTAT = 46
+#define	SEQSTAT	SEQSTAT
+};
+
+/* Context to describe whole processor state.  */
+typedef struct
+{
+  int version;
+  gregset_t gregs;
+} mcontext_t;
+
+
+/* Userlevel context.  */
+typedef struct ucontext
+{
+  unsigned long int uc_flags;
+  struct ucontext *uc_link;
+  stack_t uc_stack;
+  mcontext_t uc_mcontext;
+  __sigset_t uc_sigmask;
+} ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/libc/sysdeps/linux/bfin/syscall.c b/libc/sysdeps/linux/bfin/syscall.c
new file mode 100644
index 000000000..6fe6cf2e6
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/syscall.c
@@ -0,0 +1,49 @@
+/* vi: set sw=4 ts=4: */
+/* syscall for blackfin/uClibc
+ *
+ * Copyright (C) 2004 by Analog Devices Inc.
+ * Copyright (C) 2002 by Erik Andersen <andersen@uclibc.org>
+ *
+ * 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
+ */
+
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+long syscall(long sysnum, long a, long b, long c, long d, long e)
+{
+	int _r0 = 0;
+    asm volatile(
+	    "p0 = %1;"		/*SysCall Number*/
+	    "r0 = %2;"
+	    "r1 = %3;"
+	    "r2 = %4;"
+		"r3 = %6;"
+		"r4 = %5;"
+		"excpt 0;"		/*Call the System Call*/
+		"%0 = r0;"		/*Store the result of syscall*/
+	    : "=r"(_r0)
+	    : "r"(sysnum), "r"(a), "r"(b),
+	      "r"(c), "r"(d), "r"(e)
+	    : "memory");
+
+    if(_r0 >=(unsigned long) -4095) {
+	(*__errno_location())=(-_r0);
+	_r0=(unsigned long) -1;
+    }
+    return (long) _r0;
+}
diff --git a/libc/sysdeps/linux/bfin/vfork.S b/libc/sysdeps/linux/bfin/vfork.S
new file mode 100644
index 000000000..1f9539c55
--- /dev/null
+++ b/libc/sysdeps/linux/bfin/vfork.S
@@ -0,0 +1,12 @@
+
+#include <asm/unistd.h>
+	.text
+	.globl _vfork
+	.globl __libc_vfork
+	.type	 _vfork,STT_FUNC;
+	.align 4
+__libc_vfork:
+_vfork:
+	p0 = __NR_vfork;
+	excpt 0;
+	rts;