Initial revision

bare/Makefile

@@ -0,0 +1,54 @@
+#   Copyright (C) 1994 Free Software Foundation, Inc.
+#    Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+#      On-Line Applications Research Corporation.
+#  
+# 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.
+
+subdir := bare
+
+bare-routines := brdinit console strtsupp
+extra-objs = $(bare-routines:%=%.o)
+distribute = $(bare-routines:%=%.c)
+
+install-lib = lib$(config-vendor).a
+
+include ../Rules
+
+#
+#  For bare targets, the $(config-vendor) is the name of the board.
+#  We will place the board dependent code ONLY in a library which
+#  is board dependent.  This way many target boards can share a 
+#  single libc.a.  To resolve all symbols and successfully link
+#  a program, the application must link against libc.a and libMY_TARGET.a.
+#  For example, the target specific library for the Motorola MVME135 
+#  board will be named libmvme135.a.  To link a program for the 
+#  MVME135, one must link against -lc and -lmvme135.
+#
+
+lib: $(objpfx)lib$(config-vendor).a
+
+$(objpfx)lib$(config-vendor).a: $(bare-routines:%=$(objpfx)%.o)
+# This library is small enough that it's simplest to recreate the archive
+# from scratch each time.
+	rm -f $@
+ifdef objdir
+	cd $(objdir); $(AR) cq$(verbose) $@ $(^:$(objpfx)%=%)
+else
+	$(AR) cq$(verbose) $@ $^
+endif
+	$(RANLIB) $@

sysdeps/i960/Implies

@@ -0,0 +1,2 @@
+# i960 family uses IEEE 754 floating point.
+ieee754

sysdeps/i960/ffs.c

@@ -0,0 +1,43 @@
+/* ffs -- find first set bit in a word, counted from least significant end.
+   For i960 Core architecture
+   Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+     On-Line Applications Research Corporation.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h> 
+#include <string.h>
+
+#undef	ffs
+
+#if	defined (__GNUC__) && defined (__i960__)
+
+int
+DEFUN(ffs, (x), int x)
+{
+  int cnt;
+
+  asm("scanbit %1,%0" : "=d" (cnt) : "rm" (x & -x));
+
+  return cnt;
+}
+
+#else
+
+#include <sysdeps/generic/ffs.c>
+
+#endif

sysdeps/standalone/Subdirs

@@ -0,0 +1,4 @@
+# The `bare' subdirectory defines some structure for a target-specific
+# library of functions which are actually implemented in
+# sysdeps/standalone/CPU/TARGET.
+bare

sysdeps/standalone/brk.c

@@ -0,0 +1,68 @@
+/* Copyright (C) 1991, 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+ 
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <stdlib.h>
+
+PTR __curbrk;
+PTR __rorig;
+PTR __rlimit;
+
+int
+DEFUN(__brk, (inaddr), PTR inaddr)
+{
+
+  if ( ( (void *)inaddr > (void *)__rlimit ) || 
+                        ( (void *)inaddr < (void *)__rorig ) ) 
+    return -1;
+
+  __curbrk = inaddr;
+  return 0;
+}
+
+/* Initialization Code for Memory Allocation */
+
+PTR __C_heap_start;
+int __C_heap_size;
+ 
+#ifdef HAVE_GNU_LD
+static
+#endif
+void
+DEFUN(__NONE_set_memvals, (argc, argv, envp),
+      int argc AND char **argv AND char **envp)
+{
+ 
+  __rorig  = 
+  __curbrk = __C_heap_start;
+  __rlimit = __curbrk + __C_heap_size;
+
+  (void) &__NONE_set_memvals;    /* Avoid "defined but not used" warning.  */
+}
+ 
+#ifdef  HAVE_GNU_LD
+ 
+#include <gnu-stabs.h>
+
+text_set_element (__libc_subinit, __NONE_set_memvals);
+ 
+#endif
+

sysdeps/standalone/close.c

@@ -0,0 +1,42 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <stdio_lim.h>
+#include "filedesc.h"
+
+/* Close the file descriptor FD.  */
+int
+DEFUN(__close, (fd), int fd)
+{
+  if ( !__FD_Is_valid( fd ) || !__FD_Table[ fd ].in_use )
+    {
+      errno = EBADF;
+      return -1;
+    }
+
+  __FD_Table[ fd ].in_use = 0;
+  return 0;
+}
+

sysdeps/standalone/filedesc.h

@@ -0,0 +1,48 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+ 
+This file is part of the GNU C Library.
+ 
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+ 
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+ 
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/*
+ *  This is the file descriptor used by the no OS implementation
+ *  of __open, __read, __write, and __close.
+ */
+
+#ifndef __FILEDESC_h
+#define __FILEDESC_h
+
+#include <stdio_lim.h>
+
+#ifndef __DECLARE_FILE_DESCRIPTORS__
+#define FILEDESC_EXTERN extern
+#else
+#define FILEDESC_EXTERN 
+#endif
+
+typedef struct {
+  int  in_use;         /* 1 if in use, 0 otherwise */
+  int  flags;          /* Flags from open */
+}   __no_os_file_descriptor;
+
+#define __FD_Is_valid( _fd ) \
+  ( (_fd) >= 0 && (_fd) < FOPEN_MAX )
+
+FILEDESC_EXTERN __no_os_file_descriptor __FD_Table[ FOPEN_MAX ];
+
+#endif

sysdeps/standalone/open.c

@@ -0,0 +1,124 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+ 
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stddef.h>
+
+#include <stdio.h>
+#include <stdio_lim.h>
+#include <unistd.h>
+
+#define __DECLARE_FILE_DESCRIPTORS__
+
+#include "filedesc.h"
+
+/* Open FILE with access OFLAG.  If OFLAG includes O_CREAT,
+   a third argument is the file protection.  */
+int
+DEFUN(__open, (file, oflag), CONST char *file AND int oflag DOTS)
+{
+  int mode;
+  int newfd;
+  int index;
+
+  if (file == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (oflag & O_CREAT)
+    {
+      va_list arg;
+      va_start(arg, oflag);
+      mode = va_arg(arg, int);
+      va_end(arg);
+    }
+
+  /*
+   *  Find an open slot.
+   */
+
+  newfd = -1;
+
+  for ( index=0 ; index< FOPEN_MAX ; index++ )
+    if ( !__FD_Table[ index ].in_use ) {
+      newfd = index;
+      break;
+    }
+
+  if ( newfd == -1 ) {
+    errno = ENFILE;
+    return -1;
+  }
+
+  /* 
+   *  Initialize the open slot
+   */
+
+  __FD_Table[ newfd ].in_use = 1;
+  __FD_Table[ newfd ].flags = oflag;
+  
+  return newfd;
+}
+
+/* Initialization Code for Console I/O */
+
+#ifdef HAVE_GNU_LD
+static
+#endif
+void
+DEFUN(__NONE_init_console_io, (argc, argv, envp),
+      int argc AND char **argv AND char **envp)
+{
+  int index;
+
+  for ( index=0 ; index< FOPEN_MAX ; index++ )
+    __FD_Table[ index ].in_use = 0;
+
+  stdin = fopen( "", "r" );
+
+  stdout = fopen( "", "w" );
+
+  stderr = fopen( "", "w" );
+
+  /*
+   *  Line buffer the standard input and output and use no buffering for
+   *  standard error.
+   */
+
+  setvbuf( stdin,  NULL, _IOLBF, BUFSIZ );
+  setvbuf( stdout, NULL, _IOLBF, BUFSIZ );
+  setvbuf( stderr, NULL, _IONBF, BUFSIZ );
+
+  (void) &__NONE_init_console_io;  /* Avoid "defined but not used" warning. */
+}
+
+#ifdef  HAVE_GNU_LD
+
+#include <gnu-stabs.h>
+
+text_set_element (__libc_subinit, __NONE_init_console_io);
+
+#endif

sysdeps/standalone/read.c

@@ -0,0 +1,85 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+#include "filedesc.h"
+#include <fcntl.h>
+#include <standalone.h>
+
+/* Read NBYTES into BUF from FD.  Return the number read or -1.  */
+ssize_t
+DEFUN(__read, (fd, buf, nbytes),
+      int fd AND PTR buf AND size_t nbytes)
+{
+  char *buffer = (char *) buf;
+  int data;
+  int poll;
+
+  errno = 0;
+
+  if (nbytes == 0)
+    return 0;
+
+  if ( !__FD_Is_valid( fd ) || !__FD_Table[ fd ].in_use )
+    {
+      errno = EBADF;
+      return -1;
+    }
+  if (buf == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if ( __FD_Table[ fd ].flags & O_WRONLY )  /* is it write only? */
+    {
+      errno = EBADF;
+      return -1;
+    }
+
+  /* If this is a non-blocking fd, then we want to poll the console.  */
+
+  poll = ( __FD_Table[ fd ].flags & O_NONBLOCK ) ? 1 : 0;
+
+  /* Read a single character.  This is a cheap way to insure that the 
+     upper layers get every character because _Console_Getc can't timeout 
+     or otherwise know when to stop.  */
+
+  
+  data = _Console_Getc(poll);
+
+  if ( data == -1 )                 /* if no data return */
+    return -1;
+
+  (void) _Console_Putc(data);       /* echo the character */
+
+  if ( data == '\r' ) {		/* translate CR -> CR/LF */
+    (void) _Console_Putc('\n');
+    data = '\n';
+  }
+
+  *buffer = data;
+  return 1;
+}

sysdeps/standalone/standalone.h

@@ -0,0 +1,32 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Contributed by Joel Sherrill (jsherril@redstone-emh2.army.mil),
+     On-Line Applications Research Corporation.
+ 
+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.  */
+
+#ifndef _STANDALONE_H
+#define _STANDALONE_H
+
+#include <sys/cdefs.h>
+
+extern void _Board_Initialize __PP ((void));
+
+extern int _Console_Putc __P ((char c));
+extern int _Console_Getc __P ((int poll));
+
+#endif

sysdeps/standalone/stdio_lim.h

@@ -0,0 +1,27 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+ 
+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.  */
+
+#define	L_tmpnam	1
+#define	TMPMAX		0
+#define	L_ctermid	1
+#define	L_cuserid	1
+#define	FOPEN_MAX	16
+#define	FILENAME_MAX	14

sysdeps/standalone/write.c

@@ -0,0 +1,72 @@
+/* Copyright (C) 1994 Free Software Foundation, Inc.
+   Ported to standalone by Joel Sherrill jsherril@redstone-emh2.army.mil,
+     On-Line Applications Research Corporation.
+
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <sysdep.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stddef.h>
+
+#include "filedesc.h"
+#include <fcntl.h>
+#include <standalone.h>
+
+/* Write NBYTES of BUF to FD.  Return the number written, or -1.  */
+ssize_t
+DEFUN(__write, (fd, buf, nbytes),
+      int fd AND CONST PTR buf AND size_t nbytes)
+{
+  int count;
+  CONST char *data = buf;
+
+  if (nbytes == 0)
+    return 0;
+  if ( !__FD_Is_valid( fd ) || !__FD_Table[ fd ].in_use )
+    {
+      errno = EBADF;
+      return -1;
+    }
+  if (buf == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if ( !(__FD_Table[ fd ].flags & (O_WRONLY|O_RDWR)) )  /* is it writeable? */
+    {
+      errno = EBADF;
+      return -1;
+    }
+
+  /*
+   *  All open file descriptors are mapped to the console.
+   */
+
+  for ( count=0 ; count != nbytes ; count++ ) {
+    if ( _Console_Putc(data[ count ]) == -1 )
+      return -1;
+    if ( data[count] == '\n' && _Console_Putc('\r') == -1 )
+      return -1;
+  }
+
+  return count;
+}
+