automatic setup of large floppy disk image

diff --git a/palacios/build/Makefile b/palacios/build/Makefile
index 79f3d7d..0512886 100644 (file)
--- a/palacios/build/Makefile
+++ b/palacios/build/Makefile
@@ -1,6 +1,6 @@
 # Makefile for GeekOS kernel, userspace, and tools
 # Copyright (c) 2004,2005 David H. Hovemeyer <daveho@cs.umd.edu>
-# $Revision: 1.48 $
+# $Revision: 1.49 $
 
 # This is free software.  You are permitted to use,
 # redistribute, and modify it as specified in the file "COPYING".
@@ -82,7 +82,7 @@ endif
 #
 # and make world will build an empty boot package
 #
-XED=0
+XED=1
 
 ifeq ($(DEBUG),1)
   JRLDEBUG= -DSERIAL_PRINT_DEBUG=1 -DSERIAL_PRINT_DEBUG_LEVEL=10 -DSERIAL_PRINT=1 -DVMM_DEBUG=1 -DVMM_INFO=1 -DVMM_TRACE=1 $(DEBUG_SECTIONS)
@@ -265,8 +265,8 @@ ZEROFILE := $(PERL) $(PROJECT_ROOT)/scripts/zerofile
 NUMSECS := $(PERL) $(PROJECT_ROOT)/scripts/numsecs
 
 
-#Round a value up to a certain factor (hex values)
-ROUND_UP_HEX := $(PERL) $(PROJECT_ROOT)/scripts/round_up_hex.pl
+FD_SECTORS_PER_TRACK := $(PERL) $(PROJECT_ROOT)/scripts/numsecs_per_track
+
 
 # ----------------------------------------------------------------------
 # Definitions -
@@ -398,6 +398,7 @@ geekos/fd_boot.bin : geekos/setup.bin geekos/kernel.bin $(PROJECT_ROOT)/src/geek
                -I$(PROJECT_ROOT)/src/geekos/ \
                -DNUM_SETUP_SECTORS=`$(NUMSECS) geekos/setup.bin` \
                -DNUM_KERN_SECTORS=`$(NUMSECS) geekos/kernel.bin` \
+               -DSECTORS_PER_TRACK=`$(FD_SECTORS_PER_TRACK) geekos/kernel.bin geekos/setup.bin` \
                $(PROJECT_ROOT)/src/geekos/fd_boot.asm \
                -o $@
 

diff --git a/palacios/scripts/numsecs_per_track b/palacios/scripts/numsecs_per_track
new file mode 100755 (executable)
index 0000000..b875a89
--- /dev/null
+++ b/palacios/scripts/numsecs_per_track
@@ -0,0 +1,30 @@
+#! /usr/bin/perl
+
+# Find the number of 512-byte sectors needed to store
+# given file.
+
+# $Revision: 1.1 $
+
+use strict qw(refs vars);
+
+my $sectors = 0;
+my $filename = "";
+
+foreach $filename (@ARGV) {
+
+  my $size = (-s $filename );
+  die "Couldn't get size of $filename: $!" if ( !defined $size );
+
+  my $result = int($size / 512);
+  my $remainder = $size % 512;
+  $result++ if ( $remainder > 0 );
+
+  $sectors += $result;
+}
+
+if ($sectors <= 2879) {
+  print "18\n";
+} else {
+  print "36\n";
+}
+

diff --git a/palacios/src/geekos/defs.asm b/palacios/src/geekos/defs.asm
index 25dc811..6c5ce15 100644 (file)
--- a/palacios/src/geekos/defs.asm
+++ b/palacios/src/geekos/defs.asm
@@ -1,6 +1,6 @@
 ; Definitions for use in GeekOS boot code
 ; Copyright (c) 2001, David H. Hovemeyer <daveho@cs.umd.edu>
-; $Revision: 1.7 $
+; $Revision: 1.8 $
 
 ; This is free software.  You are permitted to use,
 ; redistribute, and modify it as specified in the file "COPYING".
@@ -54,7 +54,7 @@ VIDSEG equ 0xb800
 
 ; The following information is correct for a 1.44M floppy.
 ; Yes, I'm hard coding this.
-SECTORS_PER_TRACK equ 18
+;SECTORS_PER_TRACK equ 18      
 HEADS equ 2
 CYLINDERS equ 80