h8300 updates from Yoshinori Sato

11 files changed, 316 insertions, 363 deletions

diff --git a/libc/sysdeps/linux/h8300/bits/atomicity.h b/libc/sysdeps/linux/h8300/bits/atomicity.h
new file mode 100644
index 000000000..a4fcc1524
--- /dev/null
+++ b/libc/sysdeps/linux/h8300/bits/atomicity.h
@@ -0,0 +1,79 @@
+/* Low-level functions for atomic operations.  H8/300 version.
+   Copyright (C) 1997, 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 _ATOMICITY_H
+#define _ATOMICITY_H	1
+
+#include <inttypes.h>
+
+
+static inline uint32_t
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, uint32_t val)
+{
+  uint32_t result;
+  __asm__ __volatile__ ("stc ccr,@-sp\n\t"
+			"orc #0x80,ccr\n\t"
+			"mov.l %1,er1\n\t"
+			"mov.l %0,%1\n\t"
+			"add.l er1,%0\n\t"
+			"ldc @sp+,ccr"
+			: "=r" (result), "=m" (*mem) 
+			: "0" (val), "1" (*mem)
+			: "er1");
+  return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+  __asm__ __volatile__ ("stc ccr,@-sp\n\t"
+			"orc #0x80,ccr\n\t"
+			"mov.l %0,er0\n\t"
+			"add %1,er0\n\t"
+			"mov.l er0,%0\n\t"
+			"ldc @sp+,ccr"
+			: "=m" (*mem) 
+			: "r" (val), "0" (*mem)
+			: "er0");
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+  int ret = 0;
+
+  __asm__ __volatile__ ("stc ccr,@-sp\n\t"
+			"orc #0x80,ccr\n\t"
+			"mov.l %1,er0\n\t"
+			"cmp.l %2,er0\n\t"
+			"bne 1f\n\t"
+			"mov.l %3,%1\n\t"
+			"inc.l #1,%0\n"
+			"1:\n\t"
+			"ldc @sp+,ccr"
+			: "=r"(ret),"=m"(*p)
+			: "r"(oldval),"r"(newval),"0"(ret),"1"(*p)
+			: "er0");
+  return ret;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/h8300/bits/huge_val.h b/libc/sysdeps/linux/h8300/bits/huge_val.h
deleted file mode 100644
index 822b82930..000000000
--- a/libc/sysdeps/linux/h8300/bits/huge_val.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/* `HUGE_VAL' constants for m68k (where it is infinity).
-   Used by <stdlib.h> and <math.h> functions for overflow.
-   Copyright (C) 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#ifndef _MATH_H
-# error "Never use <bits/huge_val.h> directly; include <math.h> instead."
-#endif
-
-
-#include <features.h>
-#include <sys/cdefs.h>
-
-/* IEEE positive infinity (-HUGE_VAL is negative infinity).  */
-
-#ifdef	__GNUC__
-
-# define HUGE_VAL					\
-  (__extension__					\
-   ((union { unsigned long long __l; double __d; })	\
-    { __l: 0x7ff0000000000000ULL }).__d)
-
-#else /* not GCC */
-
-static union { unsigned char __c[8]; double __d; } __huge_val =
-  { { 0x7f, 0xf0, 0, 0, 0, 0, 0, 0 } };
-# define HUGE_VAL	(__huge_val.__d)
-
-#endif	/* GCC.  */
-
-
-/* ISO C 9X extensions: (float) HUGE_VALF and (long double) HUGE_VALL.  */
-
-#ifdef __USE_ISOC9X
-
-# ifdef __GNUC__
-
-#  define HUGE_VALF					\
-  (__extension__					\
-   ((union { unsigned long __l; float __f; })		\
-    { __l: 0x7f800000UL }).__f)
-
-#  define HUGE_VALL					\
-  (__extension__					\
-   ((union { unsigned long __l[3]; long double __ld; })	\
-    { __l: { 0x7fff0000UL, 0x80000000UL, 0UL } }).__ld)
-
-# else /* not GCC */
-
-static union { unsigned char __c[4]; float __f; } __huge_valf =
-  { { 0x7f, 0x80, 0, 0 } };
-#  define HUGE_VALF	(__huge_valf.__f)
-
-static union { unsigned char __c[12]; long double __ld; } __huge_vall =
-  { { 0x7f, 0xff, 0, 0, 0x80, 0, 0, 0, 0, 0, 0, 0 } };
-#  define HUGE_VALL	(__huge_vall.__ld)
-
-# endif	/* GCC.  */
-
-#endif	/* __USE_ISOC9X.  */
diff --git a/libc/sysdeps/linux/h8300/bits/kernel_stat.h b/libc/sysdeps/linux/h8300/bits/kernel_stat.h
index 3d2805e7f..c227a30d0 100644
--- a/libc/sysdeps/linux/h8300/bits/kernel_stat.h
+++ b/libc/sysdeps/linux/h8300/bits/kernel_stat.h
@@ -38,13 +38,12 @@ struct kernel_stat64 {
 	unsigned int	st_nlink;
 	unsigned long	st_uid;
 	unsigned long	st_gid;
-	unsigned char	__pad2[6];
 	unsigned short	st_rdev;
-	unsigned char	__pad3[2];
+	unsigned char	__pad3[10];
 	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	__pad4;		/* future possible st_blocks high bits */
 	unsigned long	st_atime;
 	unsigned long	__pad5;
 	unsigned long	st_mtime;
diff --git a/libc/sysdeps/linux/h8300/bits/kernel_types.h b/libc/sysdeps/linux/h8300/bits/kernel_types.h
index ad0c08271..057067560 100644
--- a/libc/sysdeps/linux/h8300/bits/kernel_types.h
+++ b/libc/sysdeps/linux/h8300/bits/kernel_types.h
@@ -1,11 +1,11 @@
-/* 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_H8300_POSIX_TYPES_H
-#define __ARCH_H8300_POSIX_TYPES_H
+#ifndef _BITS_KERNEL_TYPES_H
+#define _BITS_KERNEL_TYPES_H
+
+/* Sigh.  We need to carefully wrap this one...  No guarantees
+ * that the asm/posix_types.h kernel header is working.  Many
+ * arches have broken headers that introduce tons of gratuitous
+ * conflicts with uClibc's namespace.   See bits/kernel_types.h
+ * for i386, arm, etc for examples... */
 
 typedef unsigned short	__kernel_dev_t;
 typedef unsigned long	__kernel_ino_t;
@@ -28,14 +28,10 @@ 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 __kernel_dev_t	__kernel_old_dev_t;
-
-#ifdef __GNUC__
 typedef long long	__kernel_loff_t;
-#endif
+typedef __kernel_dev_t	__kernel_old_dev_t;
 
 typedef struct {
 #ifdef __USE_ALL
@@ -45,4 +41,4 @@ typedef struct {
 #endif
 } __kernel_fsid_t;
 
-#endif /* __ARCH_H8300_POSIX_TYPES_H */
+#endif /* _BITS_KERNEL_TYPES_H */
diff --git a/libc/sysdeps/linux/h8300/bits/mman.h b/libc/sysdeps/linux/h8300/bits/mman.h
index 4bf232029..34f14ee5b 100644
--- a/libc/sysdeps/linux/h8300/bits/mman.h
+++ b/libc/sysdeps/linux/h8300/bits/mman.h
@@ -1,5 +1,5 @@
-/* Definitions for BSD-style memory management.
-   Copyright (C) 1994-1998,2000,01 Free Software Foundation, Inc.
+/* 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
@@ -17,23 +17,23 @@
    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    02111-1307 USA.  */
 
-/* These are the bits used by 4.4 BSD and its derivatives.  On systems
-   (such as GNU) where these facilities are not system services but can be
-   emulated in the C library, these are the definitions we emulate.  */
-
 #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_NONE	 0x00	/* No access.  */
-#define	PROT_READ	 0x01	/* Pages can be read.  */
-#define	PROT_WRITE	 0x02	/* Pages can be written.  */
-#define	PROT_EXEC	 0x04	/* Pages can be executed.  */
+#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.  */
diff --git a/libc/sysdeps/linux/h8300/bits/resource.h b/libc/sysdeps/linux/h8300/bits/resource.h
deleted file mode 100644
index 50c659389..000000000
--- a/libc/sysdeps/linux/h8300/bits/resource.h
+++ /dev/null
@@ -1,204 +0,0 @@
-/* Bit values & structures for resource limits.  Linux version.
-   Copyright (C) 1994, 1996, 1997, 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 Library General Public License as
-   published by the Free Software Foundation; either version 2 of the
-   License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If not,
-   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
-
-#ifndef _SYS_RESOURCE_H
-# error "Never use <bits/resource.h> directly; include <sys/resource.h> instead."
-#endif
-
-#include <bits/types.h>
-
-/* Transmute defines to enumerations.  The macro re-definitions are
-   necessary because some programs want to test for operating system
-   features with #ifdef RUSAGE_SELF.  In ISO C the reflexive
-   definition is a no-op.  */
-
-/* Kinds of resource limit.  */
-enum __rlimit_resource
-{
-  /* Per-process CPU limit, in seconds.  */
-  RLIMIT_CPU = 0,
-#define RLIMIT_CPU RLIMIT_CPU
-
-  /* Largest file that can be created, in bytes.  */
-  RLIMIT_FSIZE = 1,
-#define	RLIMIT_FSIZE RLIMIT_FSIZE
-
-  /* Maximum size of data segment, in bytes.  */
-  RLIMIT_DATA = 2,
-#define	RLIMIT_DATA RLIMIT_DATA
-
-  /* Maximum size of stack segment, in bytes.  */
-  RLIMIT_STACK = 3,
-#define	RLIMIT_STACK RLIMIT_STACK
-
-  /* Largest core file that can be created, in bytes.  */
-  RLIMIT_CORE = 4,
-#define	RLIMIT_CORE RLIMIT_CORE
-
-  /* Largest resident set size, in bytes.
-     This affects swapping; processes that are exceeding their
-     resident set size will be more likely to have physical memory
-     taken from them.  */
-  RLIMIT_RSS = 5,
-#define	RLIMIT_RSS RLIMIT_RSS
-
-  /* Number of open files.  */
-  RLIMIT_NOFILE = 7,
-  RLIMIT_OFILE = RLIMIT_NOFILE, /* BSD name for same.  */
-#define RLIMIT_NOFILE RLIMIT_NOFILE
-#define RLIMIT_OFILE RLIMIT_OFILE
-
-  /* Address space limit (?) */
-  RLIMIT_AS = 9,
-#define RLIMIT_AS RLIMIT_AS
-
-  /* Number of processes.  */
-  RLIMIT_NPROC = 6,
-#define RLIMIT_NPROC RLIMIT_NPROC
-
-  /* Locked-in-memory address space.  */
-  RLIMIT_MEMLOCK = 8,
-#define RLIMIT_MEMLOCK RLIMIT_MEMLOCK
-
-  RLIM_NLIMITS = 10
-#define RLIMIT_NLIMITS RLIMIT_NLIMITS
-#define RLIM_NLIMITS RLIM_NLIMITS
-};
-
-/* Value to indicate that there is no limit.  */
-#ifndef __USE_FILE_OFFSET64
-# define RLIM_INFINITY ((long int)(~0UL >> 1))
-#else
-# define RLIM_INFINITY 0x7fffffffffffffffLL
-#endif
-
-#ifdef __USE_LARGEFILE64
-# define RLIM64_INFINITY 0x7fffffffffffffffLL
-#endif
-
-/* We can represent all limits.  */
-#define RLIM_SAVED_MAX	RLIM_INFINITY
-#define RLIM_SAVED_CUR	RLIM_INFINITY
-
-
-/* Type for resource quantity measurement.  */
-#ifndef __USE_FILE_OFFSET64
-typedef __rlim_t rlim_t;
-#else
-typedef __rlim64_t rlim_t;
-#endif
-#ifdef __USE_LARGEFILE64
-typedef __rlim64_t rlim64_t;
-#endif
-
-struct rlimit
-  {
-    /* The current (soft) limit.  */
-    rlim_t rlim_cur;
-    /* The hard limit.  */
-    rlim_t rlim_max;
-  };
-
-#ifdef __USE_LARGEFILE64
-struct rlimit64
-  {
-    /* The current (soft) limit.  */
-    rlim64_t rlim_cur;
-    /* The hard limit.  */
-    rlim64_t rlim_max;
- };
-#endif
-
-/* Whose usage statistics do you want?  */
-enum __rusage_who
-{
-  /* The calling process.  */
-  RUSAGE_SELF = 0,
-#define RUSAGE_SELF RUSAGE_SELF
-
-  /* All of its terminated child processes.  */
-  RUSAGE_CHILDREN = -1,
-#define RUSAGE_CHILDREN RUSAGE_CHILDREN
-
-  /* Both.  */
-  RUSAGE_BOTH = -2
-#define RUSAGE_BOTH RUSAGE_BOTH
-};
-
-#define __need_timeval
-#include <bits/time.h>		/* For `struct timeval'.  */
-
-/* Structure which says how much of each resource has been used.  */
-struct rusage
-  {
-    /* Total amount of user time used.  */
-    struct timeval ru_utime;
-    /* Total amount of system time used.  */
-    struct timeval ru_stime;
-    /* Maximum resident set size (in kilobytes).  */
-    long int ru_maxrss;
-    /* Amount of sharing of text segment memory
-       with other processes (kilobyte-seconds).  */
-    long int ru_ixrss;
-    /* Amount of data segment memory used (kilobyte-seconds).  */
-    long int ru_idrss;
-    /* Amount of stack memory used (kilobyte-seconds).  */
-    long int ru_isrss;
-    /* Number of soft page faults (i.e. those serviced by reclaiming
-       a page from the list of pages awaiting reallocation.  */
-    long int ru_minflt;
-    /* Number of hard page faults (i.e. those that required I/O).  */
-    long int ru_majflt;
-    /* Number of times a process was swapped out of physical memory.  */
-    long int ru_nswap;
-    /* Number of input operations via the file system.  Note: This
-       and `ru_oublock' do not include operations with the cache.  */
-    long int ru_inblock;
-    /* Number of output operations via the file system.  */
-    long int ru_oublock;
-    /* Number of IPC messages sent.  */
-    long int ru_msgsnd;
-    /* Number of IPC messages received.  */
-    long int ru_msgrcv;
-    /* Number of signals delivered.  */
-    long int ru_nsignals;
-    /* Number of voluntary context switches, i.e. because the process
-       gave up the process before it had to (usually to wait for some
-       resource to be available).  */
-    long int ru_nvcsw;
-    /* Number of involuntary context switches, i.e. a higher priority process
-       became runnable or the current process used up its time slice.  */
-    long int ru_nivcsw;
-  };
-
-/* Priority limits.  */
-#define PRIO_MIN	-20	/* Minimum priority a process can have.  */
-#define PRIO_MAX	20	/* Maximum priority a process can have.  */
-
-/* The type of the WHICH argument to `getpriority' and `setpriority',
-   indicating what flavor of entity the WHO argument specifies.  */
-enum __priority_which
-{
-  PRIO_PROCESS = 0,		/* WHO is a process ID.  */
-#define PRIO_PROCESS PRIO_PROCESS
-  PRIO_PGRP = 1,		/* WHO is a process group ID.  */
-#define PRIO_PGRP PRIO_PGRP
-  PRIO_USER = 2			/* WHO is a user ID.  */
-#define PRIO_USER PRIO_USER
-};
diff --git a/libc/sysdeps/linux/h8300/bits/setjmp.h b/libc/sysdeps/linux/h8300/bits/setjmp.h
index 78f9c83fb..024861440 100644
--- a/libc/sysdeps/linux/h8300/bits/setjmp.h
+++ b/libc/sysdeps/linux/h8300/bits/setjmp.h
@@ -1,43 +1,27 @@
-/* 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'.  H8/300H version.  */
+/* Copyright (C) 2004, Yoshinori Sato <ysato@users.sourceforge.jp> */
+/* Define the machine-dependent type `jmp_buf'.  H8/300 version.  */
 
 #ifndef _SETJMP_H
 # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
 #endif
 
-#include <signal.h>
+#ifndef	_ASM
 
 typedef struct
   {
-    /* er1-er5 */
-    long int __regs[5];
-
-    /* er6 */
-    int *__fp;
-    /* sp */
-    int *__sp;
-    /* pc */
-    void *__pc;
+    unsigned long __regs[4];  /* save er4 - er7(sp) */
+    unsigned long __pc;       /* the return address */
   } __jmp_buf[1];
 
+#endif /* _ASM */
+
+#define JB_REGS   0
+#define JB_PC     16
+#define JB_SIZE   20
+
+
 /* Test if longjmp to JMPBUF would unwind the frame
    containing a local variable at ADDRESS.  */
 #define _JMPBUF_UNWINDS(jmpbuf, address) \
-  ((void *) (address) < (void *) (jmpbuf)->__sp)
+  ((void *) (address) < (void *) (jmpbuf)->__regs[3])
diff --git a/libc/sysdeps/linux/h8300/bits/sigcontextinfo.h b/libc/sysdeps/linux/h8300/bits/sigcontextinfo.h
new file mode 100644
index 000000000..b7e08cfc9
--- /dev/null
+++ b/libc/sysdeps/linux/h8300/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/h8300/bits/stackinfo.h b/libc/sysdeps/linux/h8300/bits/stackinfo.h
new file mode 100644
index 000000000..89a77d932
--- /dev/null
+++ b/libc/sysdeps/linux/h8300/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 h8300 the stack grows down.  */
+#define _STACK_GROWS_DOWN	1
+
+#endif	/* stackinfo.h */
diff --git a/libc/sysdeps/linux/h8300/bits/syscalls.h b/libc/sysdeps/linux/h8300/bits/syscalls.h
index 62541b873..b734a6251 100644
--- a/libc/sysdeps/linux/h8300/bits/syscalls.h
+++ b/libc/sysdeps/linux/h8300/bits/syscalls.h
@@ -1,19 +1,157 @@
-#ifndef _BITS_SYSCALLS_H
-#define _BITS_SYSCALLS_H
+/* Unlike the asm/unistd.h kernel header file (which this is partly based on),
+ * this file must be able to cope with PIC and non-PIC code.  For some arches
+ * there is no difference.  For x86 (which has far too few registers) there is
+ * a difference.   Regardless, including asm/unistd.h is hereby officially
+ * forbidden.  Don't do it.  It is bad for you. 
+ */ 
 #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 */
+
+#define __syscall_return(type, res) \
+do { \
+	if ((unsigned long)(res) >= (unsigned long)(-125)) { \
+	/* avoid using res which is declared to be in register d0; \
+	   errno might expand to a function call and clobber it.  */ \
+		int __err = -(res); \
+		errno = __err; \
+		res = -1; \
+	} \
+	return (type) (res); \
+} while (0)
+
+#define _syscall0(type, name)							\
+type name(void)									\
+{										\
+  register long __res __asm__("er0");						\
+  __asm__ __volatile__ ("mov.l	%1,er0\n\t"					\
+  			"trapa	#0\n\t"						\
+			: "=r" (__res)						\
+			: "ir" (__NR_##name)					\
+			: "cc");						\
+  if ((unsigned long)(__res) >= (unsigned long)(-125)) {			\
+    errno = -__res;								\
+    __res = -1;									\
+  }										\
+  return (type)__res;								\
+}
+
+#define _syscall1(type, name, atype, a)						\
+type name(atype a)								\
+{										\
+  register long __res __asm__("er0");						\
+  __asm__ __volatile__ ("mov.l	%2, er1\n\t"					\
+  			"mov.l	%1, er0\n\t"					\
+  			"trapa	#0\n\t"						\
+			: "=r" (__res)						\
+			: "ir" (__NR_##name),					\
+			  "g" ((long)a)						\
+			: "cc", "er1");					\
+  if ((unsigned long)(__res) >= (unsigned long)(-125)) {			\
+    errno = -__res;								\
+    __res = -1;									\
+  }										\
+  return (type)__res;								\
+}
+
+#define _syscall2(type, name, atype, a, btype, b)				\
+type name(atype a, btype b)							\
+{										\
+  register long __res __asm__("er0");						\
+  __asm__ __volatile__ ("mov.l	%3, er2\n\t"					\
+  			"mov.l	%2, er1\n\t"					\
+			"mov.l	%1, er0\n\t"					\
+  			"trapa	#0\n\t"						\
+			: "=r" (__res)						\
+			: "ir" (__NR_##name),					\
+			  "g" ((long)a),					\
+			  "g" ((long)b)						\
+			: "cc", "er1", "er2"); 				\
+  if ((unsigned long)(__res) >= (unsigned long)(-125)) {			\
+    errno = -__res;								\
+    __res = -1;									\
+  }										\
+  return (type)__res;								\
+}
+
+#define _syscall3(type, name, atype, a, btype, b, ctype, c)			\
+type name(atype a, btype b, ctype c)						\
+{										\
+  register long __res __asm__("er0");						\
+  __asm__ __volatile__ ("mov.l	%4, er3\n\t"					\
+			"mov.l	%3, er2\n\t"					\
+  			"mov.l	%2, er1\n\t"					\
+			"mov.l	%1, er0\n\t"					\
+  			"trapa	#0\n\t"						\
+			: "=r" (__res)						\
+			: "ir" (__NR_##name),					\
+			  "g" ((long)a),					\
+			  "g" ((long)b),					\
+			  "g" ((long)c)						\
+			: "cc", "er1", "er2", "er3");  			\
+  if ((unsigned long)(__res) >= (unsigned long)(-125)) {			\
+    errno = -__res;								\
+    __res = -1;									\
+  }										\
+  return (type)__res;								\
+}
+
+#define _syscall4(type, name, atype, a, btype, b, ctype, c, dtype, d)		\
+type name(atype a, btype b, ctype c, dtype d)					\
+{										\
+  register long __res __asm__("er0");						\
+  __asm__ __volatile__ ("mov.l	%5, er4\n\t"					\
+			"mov.l	%4, er3\n\t"					\
+			"mov.l	%3, er2\n\t"					\
+  			"mov.l	%2, er1\n\t"					\
+			"mov.l	%1, er0\n\t"					\
+  			"trapa	#0\n\t"						\
+			: "=r" (__res)						\
+			: "ir" (__NR_##name),					\
+			  "g" ((long)a),					\
+			  "g" ((long)b),					\
+			  "g" ((long)c),					\
+			  "g" ((long)d)						\
+			: "cc", "er1", "er2", "er3", "er4");			\
+  if ((unsigned long)(__res) >= (unsigned long)(-125)) {			\
+    errno = -__res;								\
+    __res = -1;									\
+  }										\
+  return (type)__res;								\
+}
+
+#define _syscall5(type, name, atype, a, btype, b, ctype, c, dtype, d, etype, e)	\
+type name(atype a, btype b, ctype c, dtype d, etype e)				\
+{										\
+  register long __res __asm__("er0");						\
+  __asm__ __volatile__ ( \
+                        "mov.l  er5,@-sp\n\t"                                   \
+			"mov.l	%5, er4\n\t"					\
+			"mov.l	%4, er3\n\t"					\
+			"mov.l	%3, er2\n\t"					\
+  			"mov.l	%2, er1\n\t"					\
+			"mov.l	%1, er0\n\t"					\
+			"mov.l	%6, er5\n\t"					\
+  			"trapa	#0\n\t"						\
+                       "mov.l  @sp+,er5\n\t"                                   \
+			: "=r" (__res)						\
+			: "ir" (__NR_##name),					\
+			  "g" ((long)a),					\
+			  "g" ((long)b),					\
+			  "g" ((long)c),					\
+			  "g" ((long)d),					\
+			  "m" ((long)e)						\
+			: "cc", "er1", "er2", "er3", "er4");		        \
+  if ((unsigned long)(__res) >= (unsigned long)(-125)) {		       	\
+    errno = -__res;								\
+    __res = -1;									\
+  }										\
+  return (type)__res;								\
+}
 
diff --git a/libc/sysdeps/linux/h8300/bits/wordsize.h b/libc/sysdeps/linux/h8300/bits/wordsize.h
index ba643b60a..b47eee944 100644
--- a/libc/sysdeps/linux/h8300/bits/wordsize.h
+++ b/libc/sysdeps/linux/h8300/bits/wordsize.h
@@ -1,19 +1 @@
-/* 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
+#define __WORDSIZE 32