Patch from Paul Mundt adding uClibc sh64 support:

Here's a patch that implements the beginnings of a rudimentary sh64 port. So
far, this only works static, as I haven't done any of the ldso work yet. I've
also not touched the libpthread stuff yet either, so that's also disabled for
now.

This port was based off of some work that Sean McGoogan at SuperH did for his
initial port, but the this patch doesn't carry over too much from there
(basically the libc/sysdeps/linux/sh64/Makefile (or rather, parts of it),
the setjmp/longjmp stuff (which I had to rewrite portions of it to work with
the new toolchains), etc.).

However, for static, everything appears to work correcly, at least in a hello
world type application.

23 files changed, 1390 insertions, 8 deletions

diff --git a/Rules.mak b/Rules.mak
index a3cd1f2ba..3b162addf 100644
--- a/Rules.mak
+++ b/Rules.mak
@@ -146,7 +146,15 @@ ifeq ($(strip $(TARGET_ARCH)),sh)
 	CPU_CFLAGS-$(CONFIG_SH2)+="-m2"
 	CPU_CFLAGS-$(CONFIG_SH3)+="-m3"
 	CPU_CFLAGS-$(CONFIG_SH4)+="-m4"
-	CPU_CFLAGS-$(CONFIG_SH5)+="-m5"
+endif
+
+ifeq ($(strip $(TARGET_ARCH)),sh64)
+	OPTIMIZATION+=-fstrict-aliasing
+	CPU_LDFLAGS-$(ARCH_LITTLE_ENDIAN):="-EL"
+	CPU_LDFLAGS-$(ARCH_BIG_ENDIAN):="-EB"
+	CPU_CFLAGS-$(ARCH_LITTLE_ENDIAN):="-ml"
+	CPU_CFLAGS-$(ARCH_BIG_ENDIAN):="-mb"
+	CPU_CFLAGS-$(CONFIG_SH5)+="-m5-32media"
 endif
 
 ifeq ($(strip $(TARGET_ARCH)),h8300)
diff --git a/extra/Configs/Config.sh b/extra/Configs/Config.sh
index 45aed28f5..bf4326c52 100644
--- a/extra/Configs/Config.sh
+++ b/extra/Configs/Config.sh
@@ -41,7 +41,6 @@ choice
 	  - "SH2" Hitachi SH2
 	  - "SH3" Hitachi SH3
 	  - "SH4" Hitachi SH4
-	  - "SH5" Hitachi SH5
 
 config CONFIG_SH2
 	bool "SH2"
@@ -52,9 +51,6 @@ config CONFIG_SH3
 config CONFIG_SH4
 	bool "SH4"
 
-config CONFIG_SH5
-	bool "SH5"
-
 endchoice
 
 choice
diff --git a/extra/Configs/Config.sh.default b/extra/Configs/Config.sh.default
index ca31a99e8..fc9ec12ca 100644
--- a/extra/Configs/Config.sh.default
+++ b/extra/Configs/Config.sh.default
@@ -10,7 +10,6 @@ HAVE_DOT_HIDDEN=y
 # CONFIG_SH2 is not set
 # CONFIG_SH3 is not set
 CONFIG_SH4=y
-# CONFIG_SH5 is not set
 ARCH_LITTLE_ENDIAN=y
 # ARCH_BIG_ENDIAN is not set
 UCLIBC_HAS_MMU=y
diff --git a/extra/Configs/Config.sh64 b/extra/Configs/Config.sh64
new file mode 100644
index 000000000..ab77aba66
--- /dev/null
+++ b/extra/Configs/Config.sh64
@@ -0,0 +1,61 @@
+#
+# For a description of the syntax of this configuration file,
+# see extra/config/Kconfig-language.txt
+#
+
+mainmenu "uClibc C Library Configuration"
+
+menu "Target Architecture Features and Options"
+
+config HAVE_ELF
+	bool
+	default y
+
+config ARCH_CFLAGS
+	string
+
+config ARCH_LDFLAGS
+	string
+
+config LIBGCC_CFLAGS
+	string
+
+choice
+	prompt "Target Processor Type"
+	default CONFIG_SH5
+	help
+	  This is the processor type of your CPU. This information is used for
+	  optimizing purposes, as well as to determine if your CPU has an MMU,
+	  an FPU, etc.  If you pick the wrong CPU type, there is no guarantee
+	  that uClibc will work at all....
+
+	  Here are the available choices:
+	  - "SH5" SH-5 101, 103
+
+config CONFIG_SH5
+	bool "SH5"
+
+endchoice
+
+choice
+	prompt "Target Processor Endianness"
+	default ARCH_LITTLE_ENDIAN
+	help
+	  This is the endianness you wish to build use.  Choose either Big
+	  Endian, or Little Endian.
+
+config ARCH_LITTLE_ENDIAN
+	bool "Little Endian"
+
+config ARCH_BIG_ENDIAN
+	bool "Big Endian"
+
+endchoice
+
+source "extra/Configs/Config.in.arch"
+
+endmenu
+
+source "extra/Configs/Config.in"
+
+
diff --git a/extra/Configs/Config.sh64.default b/extra/Configs/Config.sh64.default
new file mode 100644
index 000000000..1e90f2182
--- /dev/null
+++ b/extra/Configs/Config.sh64.default
@@ -0,0 +1,95 @@
+#
+# Automatically generated make config: don't edit
+#
+
+#
+# Target Architecture Features and Options
+#
+HAVE_ELF=y
+CONFIG_SH5=y
+ARCH_LITTLE_ENDIAN=y
+# ARCH_BIG_ENDIAN is not set
+UCLIBC_HAS_MMU=y
+UCLIBC_HAS_FLOATS=y
+HAS_FPU=y
+# DO_C99_MATH is not set
+WARNINGS="-Wall"
+KERNEL_SOURCE="/usr/src/linux"
+C_SYMBOL_PREFIX=""
+HAVE_DOT_CONFIG=y
+
+#
+# General Library Settings
+#
+# DOPIC is not set
+UCLIBC_CTOR_DTOR=y
+UCLIBC_PROFILING=y
+# UCLIBC_HAS_THREADS is not set
+UCLIBC_HAS_LFS=y
+# MALLOC is not set
+MALLOC_930716=y
+UCLIBC_DYNAMIC_ATEXIT=y
+HAS_SHADOW=y
+UCLIBC_HAS_REGEX=y
+UNIX98PTY_ONLY=y
+ASSUME_DEVPTS=y
+UCLIBC_HAS_TM_EXTENSIONS=y
+UCLIBC_HAS_TZ_CACHING=y
+UCLIBC_HAS_TZ_FILE=y
+UCLIBC_HAS_TZ_FILE_READ_MANY=y
+UCLIBC_TZ_FILE_PATH="/etc/TZ"
+
+#
+# Networking Support
+#
+# UCLIBC_HAS_IPV6 is not set
+# UCLIBC_HAS_RPC is not set
+
+#
+# String and Stdio Support
+#
+UCLIBC_HAS_CTYPE_SIGNED=y
+UCLIBC_HAS_CTYPE_UNSAFE=y
+# UCLIBC_HAS_CTYPE_CHECKED is not set
+# UCLIBC_HAS_CTYPE_ENFORCED is not set
+# UCLIBC_HAS_WCHAR is not set
+# UCLIBC_HAS_HEXADECIMAL_FLOATS is not set
+# UCLIBC_HAS_GLIBC_CUSTOM_PRINTF is not set
+# USE_OLD_VFPRINTF is not set
+UCLIBC_PRINTF_SCANF_POSITIONAL_ARGS=9
+# UCLIBC_HAS_SCANF_GLIBC_A_FLAG is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_NONE is not set
+UCLIBC_HAS_STDIO_BUFSIZ_256=y
+# UCLIBC_HAS_STDIO_BUFSIZ_512 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_1024 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_2048 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_4096 is not set
+# UCLIBC_HAS_STDIO_BUFSIZ_8192 is not set
+UCLIBC_HAS_STDIO_BUILTIN_BUFFER_NONE=y
+# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_4 is not set
+# UCLIBC_HAS_STDIO_BUILTIN_BUFFER_8 is not set
+UCLIBC_HAS_STDIO_GETC_MACRO=y
+UCLIBC_HAS_STDIO_PUTC_MACRO=y
+UCLIBC_HAS_STDIO_AUTO_RW_TRANSITION=y
+# UCLIBC_HAS_FOPEN_LARGEFILE_MODE is not set
+# UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE is not set
+# UCLIBC_HAS_GLIBC_CUSTOM_STREAMS is not set
+# UCLIBC_HAS_PRINTF_M_SPEC is not set
+UCLIBC_HAS_ERRNO_MESSAGES=y
+# UCLIBC_HAS_SYS_ERRLIST is not set
+UCLIBC_HAS_SIGNUM_MESSAGES=y
+# UCLIBC_HAS_SYS_SIGLIST is not set
+
+#
+# Library Installation Options
+#
+DEVEL_PREFIX="/usr/$(TARGET_ARCH)-linux-uclibc"
+SYSTEM_DEVEL_PREFIX="$(DEVEL_PREFIX)"
+DEVEL_TOOL_PREFIX="$(DEVEL_PREFIX)/usr"
+
+#
+# uClibc development/debugging options
+#
+# DODEBUG is not set
+# DOASSERTS is not set
+# UCLIBC_MJN3_ONLY is not set
diff --git a/libc/sysdeps/linux/Makefile b/libc/sysdeps/linux/Makefile
index 59e460709..1251543d2 100644
--- a/libc/sysdeps/linux/Makefile
+++ b/libc/sysdeps/linux/Makefile
@@ -20,7 +20,7 @@ TOPDIR=../../../
 include $(TOPDIR)Rules.mak
 
 DIRS = common $(TARGET_ARCH)
-ALL_SUBDIRS = arm common cris h8300 i386 m68k mips powerpc sh sparc v850
+ALL_SUBDIRS = arm common cris h8300 i386 m68k mips powerpc sh sh64 sparc v850
 
 all: subdirs
 
diff --git a/libc/sysdeps/linux/common/initfini.c b/libc/sysdeps/linux/common/initfini.c
index ba4d68fc9..4941e9ad1 100644
--- a/libc/sysdeps/linux/common/initfini.c
+++ b/libc/sysdeps/linux/common/initfini.c
@@ -51,7 +51,7 @@
 #  define HIDDEN(func)
 #endif
 
-#if defined(__sh__)
+#if defined(__sh__) && !defined(__SH5__)
   /* The macro insert this sh specific stuff:
      @_SH_GLB_BEGINS
           bra     1f
diff --git a/libc/sysdeps/linux/sh64/Makefile b/libc/sysdeps/linux/sh64/Makefile
new file mode 100644
index 000000000..6e9192718
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/Makefile
@@ -0,0 +1,65 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2001 SuperH (UK) Ltd.
+# Copyright (C) 2003 Paul Mundt <lethal@linux-sh.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
+
+CFLAGS += -I..
+SFLAGS = $(CFLAGS) -D__ASSEMBLER__ -DASM_GLOBAL_DIRECTIVE=.globl
+
+TARGET_MACHINE_TYPE=$(shell $(CC) -dumpmachine)
+
+CRT0_SRC = crt0.S
+CRT0_OBJ = crt0.o crt1.o
+
+SSRC = setjmp.S longjmp.S 
+SOBJS = $(patsubst %.S,%.o, $(SSRC))
+
+CSRC = fork.c __init_brk.c brk.c sbrk.c
+COBJS = $(patsubst %.c,%.o, $(CSRC))
+
+OBJS = $(SOBJS) $(COBJS)
+
+
+all: $(OBJS) $(LIBC)
+
+$(LIBC): ar-target 
+
+ar-target: $(OBJS) $(CRT0_OBJ)
+	$(AR) $(ARFLAGS) $(LIBC) $(OBJS)
+	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) $(SFLAGS) -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(COBJS): %.o : %.c
+	$(CC) $(CFLAGS) -c $< -o $@
+	$(STRIPTOOL) -x -R .note -R .comment $*.o
+
+headers:
+
+clean:
+	rm -f *.[oa] *~ core
+	rm -f bits/sysnum.h
+
diff --git a/libc/sysdeps/linux/sh64/__init_brk.c b/libc/sysdeps/linux/sh64/__init_brk.c
new file mode 100644
index 000000000..7f9cd3c31
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/__init_brk.c
@@ -0,0 +1,25 @@
+/* From libc-5.3.12 */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+void * ___brk_addr = 0;
+
+#define __NR__brk __NR_brk
+_syscall1(void *, _brk, void *, ptr);
+
+int
+__init_brk (void)
+{
+    if (___brk_addr == 0)
+    {
+		___brk_addr = _brk(0);
+		if (___brk_addr == 0)
+		{
+		  __set_errno(ENOMEM);
+		  return -1;
+		}
+    }
+    return 0;
+}
diff --git a/libc/sysdeps/linux/sh64/bits/endian.h b/libc/sysdeps/linux/sh64/bits/endian.h
new file mode 100644
index 000000000..ae7e3bb2d
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/endian.h
@@ -0,0 +1,20 @@
+/*
+ * libc/sysdeps/linux/sh64/bits/endian.h
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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.
+ */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#ifdef __LITTLE_ENDIAN__
+#  define __BYTE_ORDER __LITTLE_ENDIAN
+#else
+#  define __BYTE_ORDER __BIG_ENDIAN
+#endif
+
diff --git a/libc/sysdeps/linux/sh64/bits/fcntl.h b/libc/sysdeps/linux/sh64/bits/fcntl.h
new file mode 100644
index 000000000..69a20966d
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/fcntl.h
@@ -0,0 +1,156 @@
+/* O_*, F_*, FD_* bit values for Linux.
+   Copyright (C) 1995, 1996, 1997, 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	_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_DIRECT	 040000	/* Direct disk access.  */
+# define O_DIRECTORY	0200000	/* Must be a directory.  */
+# define O_NOFOLLOW	0400000	/* Do not follow links.  */
+# 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	0100000
+#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
+
+/* 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
+
+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/sh64/bits/kernel_stat.h b/libc/sysdeps/linux/sh64/bits/kernel_stat.h
new file mode 100644
index 000000000..036448e6d
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/kernel_stat.h
@@ -0,0 +1,63 @@
+/* Stat structure for Linux/sh64 */
+
+#ifndef _BITS_STAT_STRUCT_H
+#define _BITS_STAT_STRUCT_H
+
+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 short	st_dev;
+	unsigned char	__pad0[10];
+
+	unsigned long	st_ino;
+	unsigned int	st_mode;
+	unsigned int	st_nlink;
+
+	unsigned long	st_uid;
+	unsigned long	st_gid;
+
+	unsigned short	st_rdev;
+	unsigned char	__pad3[10];
+
+	long long	st_size;
+	unsigned long	st_blksize;
+
+	unsigned long	st_blocks;	/* Number 512-byte blocks allocated. */
+	unsigned long	__pad4;		/* future possible st_blocks high bits */
+
+	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	__unused1;
+	unsigned long	__unused2;
+};
+
+#endif /* _BITS_STAT_STRUCT_H */
+
diff --git a/libc/sysdeps/linux/sh64/bits/kernel_types.h b/libc/sysdeps/linux/sh64/bits/kernel_types.h
new file mode 100644
index 000000000..e4340eb60
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/kernel_types.h
@@ -0,0 +1,55 @@
+/*
+ * sysdeps/linux/sh64/bits/kernel_types.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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.
+ */
+
+/* 
+ * 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 __ASM_SH64_POSIX_TYPES_H
+#define __ASM_SH64_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 long 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 /* __ASM_SH64_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/sh64/bits/setjmp.h b/libc/sysdeps/linux/sh64/bits/setjmp.h
new file mode 100644
index 000000000..08ffbc78c
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/setjmp.h
@@ -0,0 +1,48 @@
+/* Copyright (C) 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 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'.  SH-5 version. */
+
+#ifndef _SETJMP_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#define	__SETJMP_NUM_INT	31		/* number of integer registers to save */
+#define	__SETJMP_NUM_DBL	0 /* 16 */	/* number of double registers to save */
+#define	__SETJMP_NUM_TRG	3		/* number of traget registers to save */
+
+#define	__SETJMP_INT(x)	(x)
+#define	__SETJMP_DBL(x)	(__SETJMP_NUM_INT+(x))
+#define	__SETJMP_TRG(x)	(__SETJMP_NUM_INT+__SETJMP_NUM_DBL+(x))
+#define	__SETJMP_LR	(__SETJMP_NUM_INT+__SETJMP_NUM_DBL+__SETJMP_NUM_TRG)
+
+
+#ifndef _ASM
+typedef struct
+  {
+	    /* Callee-saved registers.  */
+    unsigned long long __ints[__SETJMP_NUM_INT];	/* integer registers */
+#if __SETJMP_NUM_DBL > 0
+    unsigned long long __dbls[__SETJMP_NUM_DBL];	/* double registers */
+#endif
+    unsigned long long __trgs[__SETJMP_NUM_TRG];	/* traget registers */
+    unsigned long long __lr;				/* linkage register */
+  } __jmp_buf[1];
+#endif
+
+
diff --git a/libc/sysdeps/linux/sh64/bits/syscalls.h b/libc/sysdeps/linux/sh64/bits/syscalls.h
new file mode 100644
index 000000000..e6190303a
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/syscalls.h
@@ -0,0 +1,134 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/* 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>
+
+#ifndef __set_errno
+# define __set_errno(val) (*__errno_location ()) = (val)
+#endif
+#ifndef SYS_ify
+# define SYS_ify(syscall_name)  (__NR_##syscall_name)
+#endif
+
+#ifndef __ASSEMBLER__
+
+/* user-visible error numbers are in the range -1 - -125: see <asm-sh64/errno.h> */
+#define __syscall_return(type, res) \
+do { \
+	/* Note: when returning from kernel the return value is in r9	    \
+	**       This prevents conflicts between return value and arg1      \
+	**       when dispatching signal handler, in other words makes	    \
+	**       life easier in the system call epilogue (see entry.S)      \
+	*/								    \
+        register unsigned long __sr2 __asm__ ("r2") = res;		    \
+	if ((unsigned long)(res) >= (unsigned long)(-125)) { \
+		errno = -(res);						    \
+		__sr2 = -1; 						    \
+	} \
+	return (type) (__sr2); 						    \
+} while (0)
+
+/* XXX - _foo needs to be __foo, while __NR_bar could be _NR_bar. */
+
+#define _syscall0(type,name) \
+type name(void) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x10 << 16) | __NR_##name); \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0) ); 						    \
+__syscall_return(type,__sc0); 						    \
+}
+
+#define _syscall1(type,name,type1,arg1) \
+type name(type1 arg1) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x11 << 16) | __NR_##name); \
+register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0), "r" (__sc2));					    \
+__syscall_return(type,__sc0); 						    \
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2) \
+type name(type1 arg1,type2 arg2) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x12 << 16) | __NR_##name); \
+register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
+register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0), "r" (__sc2), "r" (__sc3) );			    \
+__syscall_return(type,__sc0); 						    \
+}
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+type name(type1 arg1,type2 arg2,type3 arg3) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_##name); \
+register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
+register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
+register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );		    \
+__syscall_return(type,__sc0); 						    \
+}
+
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x14 << 16) | __NR_##name); \
+register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
+register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
+register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
+register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4;	    \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5) );\
+__syscall_return(type,__sc0); 						    \
+}
+
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x15 << 16) | __NR_##name); \
+register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
+register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
+register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
+register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4;	    \
+register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5;	    \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
+	  "r" (__sc6));							    \
+__syscall_return(type,__sc0); 						    \
+}
+
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5, type6, arg6) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5, type6 arg6) \
+{ \
+register unsigned long __sc0 __asm__ ("r9") = ((0x16 << 16) | __NR_##name); \
+register unsigned long __sc2 __asm__ ("r2") = (unsigned long) arg1;	    \
+register unsigned long __sc3 __asm__ ("r3") = (unsigned long) arg2;	    \
+register unsigned long __sc4 __asm__ ("r4") = (unsigned long) arg3;	    \
+register unsigned long __sc5 __asm__ ("r5") = (unsigned long) arg4;	    \
+register unsigned long __sc6 __asm__ ("r6") = (unsigned long) arg5;	    \
+register unsigned long __sc7 __asm__ ("r7") = (unsigned long) arg6;	    \
+__asm__ __volatile__ ("trapa	%1" \
+	: "=r" (__sc0) 							    \
+	: "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4), "r" (__sc5), \
+	  "r" (__sc6), "r" (__sc7));					    \
+__syscall_return(type,__sc0); 						    \
+}
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
+
diff --git a/libc/sysdeps/linux/sh64/bits/wordsize.h b/libc/sysdeps/linux/sh64/bits/wordsize.h
new file mode 100644
index 000000000..7c2723be4
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/bits/wordsize.h
@@ -0,0 +1,12 @@
+/*
+ * libc/sysdeps/linux/sh64/bits/wordsize.h
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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 __WORDSIZE 32
+
diff --git a/libc/sysdeps/linux/sh64/brk.c b/libc/sysdeps/linux/sh64/brk.c
new file mode 100644
index 000000000..4f97fb084
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/brk.c
@@ -0,0 +1,22 @@
+/* From libc-5.3.12 */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+extern void * ___brk_addr;
+
+extern int __init_brk (void);
+extern void *_brk(void *ptr);
+
+int brk(void * end_data_seg)
+{
+    if (__init_brk () == 0)
+    {
+		___brk_addr = _brk(end_data_seg);
+		if (___brk_addr == end_data_seg)
+			return 0;
+		__set_errno(ENOMEM);
+    }
+    return -1;
+}
diff --git a/libc/sysdeps/linux/sh64/crt0.S b/libc/sysdeps/linux/sh64/crt0.S
new file mode 100644
index 000000000..bd54ba5e2
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/crt0.S
@@ -0,0 +1,78 @@
+/* Startup code for SH5 & ELF.
+   Copyright (C) 1999 Free Software Foundation, Inc.
+   Copyright (C) 2001 Hewlett-Packard Australia
+
+   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.  */
+
+/* This is the canonical entry point, usually the first thing in the text
+   segment.
+
+	At this entry point, most registers' values are unspecified, except:
+
+   sp		The stack contains the arguments and environment:
+   		0(sp)			argc
+		4(sp)			argv[0]
+		...
+		(4*argc)(sp)		NULL
+		(4*(argc+1))(sp)	envp[0]
+		...
+					NULL
+*/
+
+	.file	"crt0.S"
+
+	.globl _start
+	.globl __main
+
+	.type	__uClibc_start_main,@function
+
+	.section .text64,"xa"
+	.align 2	/* 2^2 = 4 */
+	
+_start:
+	/* Clear the frame pointer since this is the outermost frame.  */
+###	mov #0, r14	# qqq
+
+	/* Pop argc off the stack and save a pointer to argv */
+	ld.l	r15, 0, r2	/* argc */
+	addi	r15, 4, r3	/* argv */
+
+	/* set up the value for the environment pointer r4 = (argc+1)*4+argv */
+	addi	r2, 1, r4	/* envp = argc + 1 */
+	shlli	r4, 2, r4	/* envp = envp * 4 */
+	add	r3, r4, r4	/* envp = envp + argv */
+
+	/* call main() */
+	movi	__uClibc_start_main,r17
+	ptabs/l	r17,tr0
+	blink	tr0,r18
+
+	/* should never get here....*/
+###	movi	abort@lh,r17
+###	shori	abort@ll,r17
+	ptabs/l	r17,tr0
+	blink	tr0,r63	/* call abort() => (r63) do not come back ... */
+
+	/*
+	 *	The following is a stub to stop the GNU toolchain
+	 *	from calling its C-RTL initialization routines.
+	 */
+__main:
+	ptabs/l	r18,tr0
+	blink	tr0,r63
+
diff --git a/libc/sysdeps/linux/sh64/fork.c b/libc/sysdeps/linux/sh64/fork.c
new file mode 100644
index 000000000..af56d3675
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/fork.c
@@ -0,0 +1,35 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * fork for uClibc
+ *
+ * Copyright (C) 2000 by Lineo, inc.  Written by Erik Andersen
+ * <andersen@lineo.com>, <andersee@debian.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 <errno.h>
+#include <features.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+
+#ifndef __HAS_NO_MMU__
+
+//#define __NR_fork             2
+#include <unistd.h>
+_syscall0(pid_t, fork);
+
+#endif
diff --git a/libc/sysdeps/linux/sh64/longjmp.S b/libc/sysdeps/linux/sh64/longjmp.S
new file mode 100644
index 000000000..d22a1677d
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/longjmp.S
@@ -0,0 +1,140 @@
+/* longjmp for SH-5.
+   Copyright (C) 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 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 _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+
+
+#define	INTEGER(reg,offset)	ld.q	r2, offset*8, reg
+#define	DOUBLE(reg,offset)	fld.d	r2, offset*8, reg
+
+
+	.file	"longjmp.S"
+
+	.section .text64,"xa"
+	.align 2
+
+	.global	longjmp	
+	.type	longjmp,@function
+
+longjmp:
+	/*
+	 *	extern void longjmp(jmp_buf env, int val);
+	 *
+	 *	r2 == env
+	 *	r3 == val
+	 *	r4 == temporary
+	 */
+
+			/* callee-save registers R10-R16 */
+	INTEGER(r10, __SETJMP_INT(0))
+	INTEGER(r11, __SETJMP_INT(1))
+	INTEGER(r12, __SETJMP_INT(2))
+	INTEGER(r13, __SETJMP_INT(3))
+	INTEGER(r14, __SETJMP_INT(4))
+	INTEGER(r15, __SETJMP_INT(5))
+	INTEGER(r16, __SETJMP_INT(6))
+
+			/* callee-save registers R28-R35 */
+	INTEGER(r28, __SETJMP_INT(7))
+	INTEGER(r29, __SETJMP_INT(8))
+	INTEGER(r30, __SETJMP_INT(9))
+	INTEGER(r31, __SETJMP_INT(10))
+	INTEGER(r32, __SETJMP_INT(11))
+	INTEGER(r33, __SETJMP_INT(12))
+	INTEGER(r34, __SETJMP_INT(13))
+	INTEGER(r35, __SETJMP_INT(14))
+
+			/* callee-save registers R44-R59 */
+	INTEGER(r44, __SETJMP_INT(15))
+	INTEGER(r45, __SETJMP_INT(16))
+	INTEGER(r46, __SETJMP_INT(17))
+	INTEGER(r47, __SETJMP_INT(18))
+	INTEGER(r48, __SETJMP_INT(19))
+	INTEGER(r49, __SETJMP_INT(20))
+	INTEGER(r50, __SETJMP_INT(21))
+	INTEGER(r51, __SETJMP_INT(22))
+	INTEGER(r52, __SETJMP_INT(23))
+	INTEGER(r53, __SETJMP_INT(24))
+	INTEGER(r54, __SETJMP_INT(25))
+	INTEGER(r55, __SETJMP_INT(26))
+	INTEGER(r56, __SETJMP_INT(27))
+	INTEGER(r57, __SETJMP_INT(28))
+	INTEGER(r58, __SETJMP_INT(29))
+	INTEGER(r59, __SETJMP_INT(30))
+
+	#if __SETJMP_NUM_INT != 31
+	#error	__SETJMP_NUM_INT does agree with expected value
+	#endif
+
+#if __SETJMP_NUM_DBL > 0
+			/* callee-save registers FR12-FR15 */
+	DOUBLE(d12, __SETJMP_DBL(0))
+	DOUBLE(d14, __SETJMP_DBL(1))
+
+			/* callee-save registers FR36-FR63 */
+	DOUBLE(d36, __SETJMP_DBL(2))
+	DOUBLE(d38, __SETJMP_DBL(3))
+	DOUBLE(d40, __SETJMP_DBL(4))
+	DOUBLE(d42, __SETJMP_DBL(5))
+	DOUBLE(d44, __SETJMP_DBL(6))
+	DOUBLE(d46, __SETJMP_DBL(7))
+	DOUBLE(d48, __SETJMP_DBL(8))
+	DOUBLE(d50, __SETJMP_DBL(9))
+	DOUBLE(d52, __SETJMP_DBL(10))
+	DOUBLE(d54, __SETJMP_DBL(11))
+	DOUBLE(d56, __SETJMP_DBL(12))
+	DOUBLE(d58, __SETJMP_DBL(13))
+	DOUBLE(d60, __SETJMP_DBL(14))
+	DOUBLE(d62, __SETJMP_DBL(15))
+
+	#if __SETJMP_NUM_DBL != 16
+	#error	__SETJMP_NUM_DBL does agree with expected value
+	#endif
+
+#endif	/* __SETJMP_NUM_DBL > 0 */
+
+			/* callee-save registers TR5-TR7 */
+	INTEGER(r4, __SETJMP_TRG(0))
+	ptabs	r4, tr5
+	INTEGER(r4, __SETJMP_TRG(1))
+	ptabs	r4, tr6
+	INTEGER(r4, __SETJMP_TRG(2))
+	ptabs	r4, tr7
+
+	#if __SETJMP_NUM_TRG != 3
+	#error	__SETJMP_NUM_TRG does agree with expected value
+	#endif
+
+			/* restore Linkage Register (LR) for longjmp return */
+	INTEGER(r18, __SETJMP_LR)
+	ptabs/l	r18, tr0
+
+			/*
+			 *	must ensure longjmp() never returns 0.
+			 *	if 'val' == 0, then return 1.
+			 */
+	cmpeq	r3, r63, r2	/* r2 = (r3==0) ? 1 : 0; */
+	add.l	r3, r2, r2	/* return value */
+
+			/* return to caller */
+	blink	tr0, r63
+
diff --git a/libc/sysdeps/linux/sh64/sbrk.c b/libc/sysdeps/linux/sh64/sbrk.c
new file mode 100644
index 000000000..c39d60063
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/sbrk.c
@@ -0,0 +1,25 @@
+/* From libc-5.3.12 */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+extern void * ___brk_addr;
+
+extern int __init_brk (void);
+extern void *_brk(void *ptr);
+
+void *
+sbrk(intptr_t increment)
+{
+    if (__init_brk () == 0)
+    {
+		char * tmp = (char*)___brk_addr+increment;
+		___brk_addr = _brk(tmp);
+		if (___brk_addr == tmp)
+			return tmp-increment;
+		__set_errno(ENOMEM);
+		return ((void *) -1);
+    }
+    return ((void *) -1);
+}
diff --git a/libc/sysdeps/linux/sh64/setjmp.S b/libc/sysdeps/linux/sh64/setjmp.S
new file mode 100644
index 000000000..11d76d372
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/setjmp.S
@@ -0,0 +1,140 @@
+/* setjmp for SH-5.
+   Copyright (C) 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 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 _SETJMP_H
+#define _ASM
+#include <bits/setjmp.h>
+
+
+#define	INTEGER(reg,offset)	st.q	r2, offset*8, reg
+#define	DOUBLE(reg,offset)	fst.d	r2, offset*8, reg
+
+
+	.file	"setjmp.S"
+
+	.section .text64,"xa"
+	.align 2
+
+	.global	__sigsetjmp	
+	.type	__sigsetjmp,@function
+
+__sigsetjmp:
+	/*
+	 *	extern int __sigsetjmp(jmp_buf env, int savemask);
+	 *
+	 *	r2 == env
+	 *	r3 == savemask
+	 *	r4 == temporary
+	 */
+
+			/* callee-save registers R10-R16 */
+	INTEGER(r10, __SETJMP_INT(0))
+	INTEGER(r11, __SETJMP_INT(1))
+	INTEGER(r12, __SETJMP_INT(2))
+	INTEGER(r13, __SETJMP_INT(3))
+	INTEGER(r14, __SETJMP_INT(4))
+	INTEGER(r15, __SETJMP_INT(5))
+	INTEGER(r16, __SETJMP_INT(6))
+
+			/* callee-save registers R28-R35 */
+	INTEGER(r28, __SETJMP_INT(7))
+	INTEGER(r29, __SETJMP_INT(8))
+	INTEGER(r30, __SETJMP_INT(9))
+	INTEGER(r31, __SETJMP_INT(10))
+	INTEGER(r32, __SETJMP_INT(11))
+	INTEGER(r33, __SETJMP_INT(12))
+	INTEGER(r34, __SETJMP_INT(13))
+	INTEGER(r35, __SETJMP_INT(14))
+
+			/* callee-save registers R44-R59 */
+	INTEGER(r44, __SETJMP_INT(15))
+	INTEGER(r45, __SETJMP_INT(16))
+	INTEGER(r46, __SETJMP_INT(17))
+	INTEGER(r47, __SETJMP_INT(18))
+	INTEGER(r48, __SETJMP_INT(19))
+	INTEGER(r49, __SETJMP_INT(20))
+	INTEGER(r50, __SETJMP_INT(21))
+	INTEGER(r51, __SETJMP_INT(22))
+	INTEGER(r52, __SETJMP_INT(23))
+	INTEGER(r53, __SETJMP_INT(24))
+	INTEGER(r54, __SETJMP_INT(25))
+	INTEGER(r55, __SETJMP_INT(26))
+	INTEGER(r56, __SETJMP_INT(27))
+	INTEGER(r57, __SETJMP_INT(28))
+	INTEGER(r58, __SETJMP_INT(29))
+	INTEGER(r59, __SETJMP_INT(30))
+
+	#if __SETJMP_NUM_INT != 31
+	#error	__SETJMP_NUM_INT does agree with expected value
+	#endif
+
+#if __SETJMP_NUM_DBL > 0
+			/* callee-save registers FR12-FR15 */
+	DOUBLE(d12, __SETJMP_DBL(0))
+	DOUBLE(d14, __SETJMP_DBL(1))
+
+			/* callee-save registers FR36-FR63 */
+	DOUBLE(d36, __SETJMP_DBL(2))
+	DOUBLE(d38, __SETJMP_DBL(3))
+	DOUBLE(d40, __SETJMP_DBL(4))
+	DOUBLE(d42, __SETJMP_DBL(5))
+	DOUBLE(d44, __SETJMP_DBL(6))
+	DOUBLE(d46, __SETJMP_DBL(7))
+	DOUBLE(d48, __SETJMP_DBL(8))
+	DOUBLE(d50, __SETJMP_DBL(9))
+	DOUBLE(d52, __SETJMP_DBL(10))
+	DOUBLE(d54, __SETJMP_DBL(11))
+	DOUBLE(d56, __SETJMP_DBL(12))
+	DOUBLE(d58, __SETJMP_DBL(13))
+	DOUBLE(d60, __SETJMP_DBL(14))
+	DOUBLE(d62, __SETJMP_DBL(15))
+
+	#if __SETJMP_NUM_DBL != 16
+	#error	__SETJMP_NUM_DBL does agree with expected value
+	#endif
+
+#endif	/* __SETJMP_NUM_DBL > 0 */
+
+			/* callee-save registers TR5-TR7 */
+	gettr   tr5, r4
+	INTEGER(r4, __SETJMP_TRG(0))
+	gettr   tr6, r4
+	INTEGER(r4, __SETJMP_TRG(1))
+	gettr   tr7, r4
+	INTEGER(r4, __SETJMP_TRG(2))
+
+	#if __SETJMP_NUM_TRG != 3
+	#error	__SETJMP_NUM_TRG does agree with expected value
+	#endif
+
+			/* save Linkage Register (LR) for longjmp return */
+	INTEGER(r18, __SETJMP_LR)
+
+			/*
+			 *	return a value of zero if call is __sigsetjmp().
+			 *	This is so that caller of setjmp() knows
+			 *	we have retruned via setjmp, and not via longjmp.
+			 *	R0 is the result register.
+			 */
+
+	ptabs/l	r18, tr0	/* return to caller */
+	movi	0, r2	/* return value */
+	blink	tr0, r63
+
diff --git a/libc/sysdeps/linux/sh64/sys/ucontext.h b/libc/sysdeps/linux/sh64/sys/ucontext.h
new file mode 100644
index 000000000..16feb49a5
--- /dev/null
+++ b/libc/sysdeps/linux/sh64/sys/ucontext.h
@@ -0,0 +1,205 @@
+/* Copyright (C) 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 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.  */
+
+/* Where is System V/SH ABI?  */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H	1
+
+#include <features.h>
+#include <signal.h>
+
+/* We need the signal context definitions even if they are not used
+   included in <signal.h>.  */
+#include <bits/sigcontext.h>
+
+
+typedef long long greg_t;
+
+/* Number of general registers.  */
+#define NGREG	64
+
+/* Container for all general registers.  */
+typedef greg_t gregset_t[NGREG];
+
+#ifdef __USE_GNU
+/* 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
+  R8 = 8,
+#define R8	R8
+  R9 = 9,
+#define R9	R9
+  R10 = 10,
+#define R10	R10
+  R11 = 11,
+#define R11	R11
+  R12 = 12,
+#define R12	R12
+  R13 = 13,
+#define R13	R13
+  R14 = 14,
+#define R14	R14
+  R15 = 15,
+#define R15	R15
+  R16 = 16,
+#define R16	R16
+  R17 = 17,
+#define R17	R17
+  R18 = 18,
+#define R18	R18
+  R19 = 19,
+#define R19	R19
+  R20 = 20,
+#define R20	R20
+  R21 = 21,
+#define R21	R21
+  R22 = 22,
+#define R22	R22
+  R23 = 23,
+#define R23	R23
+  R24 = 24,
+#define R24	R24
+  R25 = 25,
+#define R25	R25
+  R26 = 26,
+#define R26	R26
+  R27 = 27,
+#define R27	R27
+  R28 = 28,
+#define R28	R28
+  R29 = 29,
+#define R29	R29
+  R30 = 30,
+#define R30	R30
+  R31 = 31,
+#define R31	R31
+  R32 = 32,
+#define R32	R32
+  R33 = 33,
+#define R33	R33
+  R34 = 34,
+#define R34	R34
+  R35 = 35,
+#define R35	R35
+  R36 = 36,
+#define R36	R36
+  R37 = 37,
+#define R37	R37
+  R38 = 38,
+#define R38	R38
+  R39 = 39,
+#define R39	R39
+  R40 = 40,
+#define R40	R40
+  R41 = 41,
+#define R41	R41
+  R42 = 42,
+#define R42	R42
+  R43 = 43,
+#define R43	R43
+  R44 = 44,
+#define R44	R44
+  R45 = 45,
+#define R45	R45
+  R46 = 46,
+#define R46	R46
+  R47 = 47,
+#define R47	R47
+  R48 = 48,
+#define R48	R48
+  R49 = 49,
+#define R49	R49
+  R50 = 50,
+#define R50	R50
+  R51 = 51,
+#define R51	R51
+  R52 = 52,
+#define R52	R52
+  R53 = 53,
+#define R53	R53
+  R54 = 54,
+#define R54	R54
+  R55 = 55,
+#define R55	R55
+  R56 = 56,
+#define R56	R56
+  R57 = 57,
+#define R57	R57
+  R58 = 58,
+#define R58	R58
+  R59 = 59,
+#define R59	R59
+  R60 = 60,
+#define R60	R60
+  R61 = 61,
+#define R61	R61
+  R62 = 62,
+#define R62	R62
+  R63 = 63,
+#define R63	R63
+};
+#endif
+
+typedef int freg_t;
+
+/* Number of FPU registers.  */
+#define NFPREG	32
+
+/* Structure to describe FPU registers.  */
+typedef freg_t fpregset_t[NFPREG];
+
+/* Context to describe whole processor state.  */
+typedef struct
+  {
+    gregset_t gregs;
+    fpregset_t fpregs;
+    unsigned long long sc_tregs[8];
+    unsigned long long sc_pc;
+    unsigned long long sc_sr;
+    unsigned long long sc_fpscr;
+    
+  } 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 */