4 files changed, 189 insertions, 0 deletions
diff --git a/roms/SLOF/tools/.gitignore b/roms/SLOF/tools/.gitignore
new file mode 100644
index 00000000..e4584139
--- /dev/null
+++ b/roms/SLOF/tools/.gitignore
@@ -0,0 +1 @@
+gen_reloc_table
diff --git a/roms/SLOF/tools/Makefile b/roms/SLOF/tools/Makefile
new file mode 100644
index 00000000..6de8fe64
--- /dev/null
+++ b/roms/SLOF/tools/Makefile
@@ -0,0 +1,33 @@
+# *****************************************************************************
+# * Copyright (c) 2004, 2008 IBM Corporation
+# * All rights reserved.
+# * This program and the accompanying materials
+# * are made available under the terms of the BSD License
+# * which accompanies this distribution, and is available at
+# * http://www.opensource.org/licenses/bsd-license.php
+# *
+# * Contributors:
+# *     IBM Corporation - initial implementation
+# ****************************************************************************/
+
+include ../make.rules
+
+all: gen_reloc_table
+
+%.o: %.c
+		$(HOSTCC) -W $(HOSTCFLAGS) -c $^
+
+elf2tst:	elf2tst.o
+		$(HOSTCC) $(HOSTCFLAGS) -o $@ $^
+
+gen_reloc_table: gen_reloc_table.o
+		$(HOSTCC) $(HOSTCFLAGS) -o $@ $^
+
+clean_here:
+	rm -f elf2tst *.o gen_reloc_table
+
+clean:	clean_here
+
+
+distclean:	clean_here
+
diff --git a/roms/SLOF/tools/create_reloc_table.sh b/roms/SLOF/tools/create_reloc_table.sh
new file mode 100755
index 00000000..8cacb742
--- /dev/null
+++ b/roms/SLOF/tools/create_reloc_table.sh
@@ -0,0 +1,60 @@
+# *****************************************************************************
+# * Copyright (c) 2004, 2008 IBM Corporation
+# * All rights reserved.
+# * This program and the accompanying materials
+# * are made available under the terms of the BSD License
+# * which accompanies this distribution, and is available at
+# * http://www.opensource.org/licenses/bsd-license.php
+# *
+# * Contributors:
+# *     IBM Corporation - initial implementation
+# ****************************************************************************/
+#!/bin/sh
+
+
+CROSSTMP=`grep ^CROSS $(dirname $0)/../make.rules | cut -d\  -f2`
+
+CROSS=${CROSS-$CROSSTMP}
+
+# Set defaults:
+LD="${CROSS}ld"
+LDFLAGS="-nostdlib"
+LDSFILE=""
+OBJCOPY="${CROSS}objcopy"
+
+DIRNAME=`dirname $0`
+
+# Parse parameters:
+while [ $# -gt 0 ] ; do
+	case "$1" in
+		--ld) LD=$2 ; shift 2 ;;
+		--ldflags) LDFLAGS=$2 ; shift 2 ;;
+		--lds) LDSFILE=$2 ; shift 2 ;;
+		--objcopy) OBJCOPY=$2 ; shift 2 ;;
+		*.o|*.a|-l*|-L*) OBJFILES="$OBJFILES $1" ; shift ;;
+		*) echo "$0:" ; echo " Unsupported argument: $1"; exit -1 ;;
+	esac
+done
+
+if [ -z $LDSFILE ]; then
+	echo "Please specifiy an lds file with the --lds option"
+	exit 42
+fi
+
+TMP1=`mktemp`
+TMP2=`mktemp`
+
+# Now create the two object files:
+$LD $LDFLAGS -T $LDSFILE -o $TMP1.o $OBJFILES || exit -1
+$LD $LDFLAGS -T $LDSFILE -o $TMP2.o $OBJFILES --section-start .text=0x4000000000000000 || exit -1
+
+$OBJCOPY -O binary $TMP1.o $TMP1.bin || exit -1
+$OBJCOPY -O binary $TMP2.o $TMP2.bin || exit -1
+
+# Create the relocation table with gen_reloc_table:
+$DIRNAME/gen_reloc_table $TMP1.bin $TMP2.bin reloc_table.bin
+
+$LD -o reloc_table.o -bbinary reloc_table.bin -e0 || exit -1
+$OBJCOPY --rename-section .data=.reloc reloc_table.o reloc_table.o || exit -1
+
+rm -f $TMP1.o $TMP2.o $TMP1.bin $TMP2.bin reloc_table.bin
diff --git a/roms/SLOF/tools/gen_reloc_table.c b/roms/SLOF/tools/gen_reloc_table.c
new file mode 100644
index 00000000..b15ce9d0
--- /dev/null
+++ b/roms/SLOF/tools/gen_reloc_table.c
@@ -0,0 +1,95 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+
+static int reloc_64_cnt;
+
+static int reloc_64[4096];
+
+static void
+output_int(FILE *output_file, int i)
+{
+  fputc((i>>24) & 0xff, output_file);
+  fputc((i>>16) & 0xff, output_file);
+  fputc((i>>8) & 0xff, output_file);
+  fputc(i & 0xff, output_file);
+}
+
+static void
+output_reloc_table(FILE * output_file, int reloc_cnt, int reloc[])
+{
+  int i;
+  for (i=0; i < reloc_cnt; i++)
+    {
+#ifdef DEBUG
+      printf ("reloc %x\n", reloc[i]);
+#endif
+      output_int (output_file, reloc[i]);
+    }
+  if ((reloc_cnt & 1) == 0)
+    output_int (output_file, 0);
+}
+
+int
+main(int argc, char *argv[])
+{
+  int cnt_a, cnt_b, offset = -1;
+  unsigned char a, b;
+  FILE *orig, *other, *output_file;
+
+  if (argc != 4)
+    {
+      fprintf (stderr, "reloc_diff orig_file other_file output_file\n");
+      exit(-1);
+    }
+    
+  orig = fopen(argv[1], "rb");
+  other = fopen(argv[2], "rb");
+  output_file = fopen(argv[3], "wb");
+  if(orig == NULL || other == NULL || output_file == NULL) {
+    printf("Could not open file.\n");
+    return -1;
+  }
+
+  while (1)
+    {
+      cnt_a = fread(&a, 1, 1, orig);
+      cnt_b = fread(&b, 1, 1, other);
+      offset ++;
+      if (cnt_a != cnt_b)
+	{
+	  fprintf (stderr, "Files >%s< and >%s< have not the same length\n",argv[1],argv[2]);
+	  exit(-1);
+	}
+
+      if (cnt_a == 0)
+	break;
+      
+      if (a == b)	continue;
+
+      if (a + 0x40 == b)
+	{
+	  reloc_64[reloc_64_cnt++] = offset;
+	}
+      else
+	{
+	  fprintf(stderr, "Unknown relocation");
+	  fprintf(stderr, "Offset %x: %02x %02x\n", offset, a, b);
+	  break;
+	}
+    }
+
+  output_reloc_table(output_file, reloc_64_cnt, reloc_64);
+  return 0;
+}