PC386 BSP enhancements from Aleksey Romanov (Quality Quorum

<qqi@world.std.com>).   Unfortunately after merging these,
the pc386 will not boot using grub for for.  It still does not
work using netboot for me.  Here is his summary of changes:


  rtems/c/src/lib/libbsp/i386/pc386/Makefile.in
  	Added support for new sub-directory

  rtems/c/src/lib/libbsp/i386/pc386/bsp_specs
  	Made possible to build COFF image

  rtems/c/src/lib/libbsp/i386/pc386/console/console.c
  	Added support for serial consoles, selectable by patching
  	binary image, added __assert(), use _IBMPC_inch_sleep()
  	instaed of _IMBPC_inch()

  rtems/c/src/lib/libbsp/i386/pc386/console/inch.c
  	Added _IMBPC_inch_sleep()

  rtems/c/src/lib/libbsp/i386/pc386/console/outch.c
  	Oops - just formatting

  rtems/c/src/lib/libbsp/i386/pc386/include/Makefile.in
  	Added support for new files

  rtems/c/src/lib/libbsp/i386/pc386/include/bsp.h
  	Added support for new features

  rtems/c/src/lib/libbsp/i386/pc386/include/pc386uart.h
  	New file: definitions for serial ports

  rtems/c/src/lib/libbsp/i386/pc386/include/pcibios.h
  	New file: definitions for PCI BIOS

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/Makefile.in
  	New file: makefile in new directory

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/i386-stub-glue.c
  	New file: i386-stub interface

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/i386-stub.c
  	New file: i386-stub itself

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/pc386uart.c
  	New file: serial ports

  rtems/c/src/lib/libbsp/i386/pc386/pc386dev/pcibios.c
  	New file: PCI BIOS support

  rtems/c/src/lib/libbsp/i386/pc386/start/start.s
  	Commented out DEBUG_EARLY stuff, everything is working fine

  rtems/c/src/lib/libbsp/i386/pc386/start/start16.s
  	Cleaned up

  rtems/c/src/lib/libbsp/i386/pc386/startup/bspstart.c
  	Added call to console_resereve_resources

  rtems/c/src/lib/libbsp/i386/pc386/startup/exit.c
  	Added support for serial console

  rtems/c/src/lib/libbsp/i386/pc386/startup/ldsegs.s
  	Fixed typo in comments

  rtems/c/src/lib/libbsp/i386/pc386/tools/Makefile.in
  	Changed to reflect cnages in code

  rtems/c/src/lib/libbsp/i386/pc386/tools/bin2boot.c
  	Trivialized, problem - I do not know how to make patch
  	remove obsolete files - there are a lot of them there

  rtems/c/src/lib/libbsp/i386/pc386/tools/binpatch.c
  	New file: utility to do binary patches

  rtems/c/src/lib/libbsp/i386/pc386/wrapup/Makefile.in
  	Added support for new directory

  rtems/make/custom/pc386.cfg
  	Add COFF image building

1 files changed, 168 insertions, 0 deletions

diff --git a/tools/build/binpatch.c b/tools/build/binpatch.c
new file mode 100644
index 0000000000..ab0900702a
--- /dev/null
+++ b/tools/build/binpatch.c
@@ -0,0 +1,168 @@
+/*
+ *  $Id$
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/*
+ * This function will patch binary file
+ */
+
+
+static char buf[512];
+
+static void 
+usage(void)
+{
+  printf("usage: binpatch [-h] <ofile> <ifile> <reloc> <off> <byte0> "
+         "[<byte1> [<byte2> [<byte3>]]]\n");
+  printf("this function patches binary file at specified offset with\n");
+  printf("up to 4 bytes provided on command line \n");
+  printf("-h       - prints this message\n\n");
+  printf("<ofile>  - output file\n");
+  printf("<ifile>  - input ifile\n");
+  printf("<reloc>  - relocation address of image\n");
+  printf("<off>    - offset of patch, offset in file is at off - reloc\n");
+  printf("<byte0>  - byte 0 of patch\n");
+  printf("<byte1>  - byte 1 of patch\n");
+  printf("<byte2>  - byte 1 of patch\n");
+  printf("<byte3>  - byte 1 of patch\n");
+
+  return;
+}
+
+int
+main(int argc, char **argv)
+{
+  int   c;
+  FILE  *ofp, *ifp;
+  char  patch[4], *end;
+  int   patchLen, tmp, i, off, cnt, patched, len, reloc;
+  
+  
+  /* parse command line options */
+  while ((c = getopt(argc, argv, "h")) >= 0)
+    {
+      switch (c)
+	{
+	case 'h':
+	  usage();
+	  return 0;
+	default:
+	  usage();
+	  return 1;
+	}
+    }
+
+  if(argc < 6)
+    {
+      usage();
+      return 1;
+    }
+
+  /* Let us get offset in file */
+  reloc = strtol(argv[3], &end, 0);
+  if(end == argv[3] || off < 0)
+    {
+      fprintf(stderr, "bad reloc value %s\n", argv[3]);
+      return 1;
+    }
+
+  off = strtol(argv[4], &end, 0);
+  if(end == argv[4] || off < 0 || off < reloc)
+    {
+      fprintf(stderr, "bad offset value %s\n", argv[4]);
+      return 1;
+    }
+
+  off -= reloc;
+
+  /* Let us get patch  */
+  patchLen = argc - 5;
+
+  for(i=0; i<patchLen; i++)
+    {
+      tmp = strtol(argv[5+i], &end, 0);
+
+      if(end == argv[4+i] || tmp < 0 || tmp > 0xff)
+	{
+	  fprintf(stderr, "bad byte value %s\n", argv[5+i]);
+	  return 1;
+	}
+      patch[i] = tmp;
+    }
+      
+  ifp = fopen(argv[2], "r");
+  if(ifp == NULL)
+    {
+      fprintf(stderr, "unable to open file %s\n", argv[2]);
+      return 1;
+    }
+
+  ofp = fopen(argv[1], "w");
+  if(ofp == NULL)
+    {
+      fprintf(stderr, "unable to open file %s\n", argv[1]);
+      return 1;
+    }
+
+  cnt     = 0;
+  patched = 0;
+  for(;;)
+    {
+      len = fread(buf, 1, sizeof(buf), ifp);
+
+      if(len == 0)
+	{
+	  break;
+	}
+
+      if(cnt <= off && (cnt + len) > off)
+	{
+	  /* Perform patch */
+	  for(i=0; i<patchLen && (off+i)<(cnt+len); i++)
+	    {
+	      buf[off-cnt+i] = patch[i];
+	    }
+	  patched = 1;
+	}
+      else if(cnt > off && cnt < (off + patchLen))
+	{
+	  /* Perform patch */
+	  for(i=cnt-off; i<patchLen; i++)
+	    {
+	      buf[off-cnt+i] = patch[i];
+	    }
+	  patched = 1;
+	}
+	  
+      fwrite(buf, 1, len, ofp);
+
+      cnt += len;
+    }
+
+  fclose(ifp);
+  fclose(ofp);
+  
+  if(!patched)
+    {
+      fprintf(stderr, "warning: offset is beyond input file length\n");
+      fprintf(stderr, "         no patch is performed\n");
+    }
+
+  return 0;
+}
+
+      
+
+  
+
+
+
+
+  
+
+
+