2004-05-23 Yoshinori K. Okuji <okuji@enbug.org>

* stage2/char_io.c (grub_isspace): Use a switch sentense instead
	of an if sentense, because that reduces the size.

	* lib/device.c (read_device_map): Change the max number of DRIVE
	to 127 from 8. This was too strict.

	* stage2/asm.S (stop_floppy): Call pusha and popa outside the
	block of real mode code. Reported by Guillem Jover
	<guillem@debian.org>.

ChangeLog

@@ -1,3 +1,15 @@
+2004-05-23  Yoshinori K. Okuji  <okuji@enbug.org>
+
+	* stage2/char_io.c (grub_isspace): Use a switch sentense instead
+	of an if sentense, because that reduces the size.
+
+	* lib/device.c (read_device_map): Change the max number of DRIVE
+	to 127 from 8. This was too strict.
+
+	* stage2/asm.S (stop_floppy): Call pusha and popa outside the
+	block of real mode code. Reported by Guillem Jover
+	<guillem@debian.org>.
+
 2004-05-20  Damian Ivereigh  <damian@cisco.com>
 
 	* netboot/main.c: Fixed bootp only code so that options

grub/Makefile.in

@@ -142,13 +142,14 @@ sharedstatedir = @sharedstatedir@
 sysconfdir = @sysconfdir@
 target_alias = @target_alias@
 sbin_PROGRAMS = grub
-@SERIAL_SPEED_SIMULATION_FALSE@SERIAL_FLAGS = -DSUPPORT_SERIAL=1 
 
 @SERIAL_SPEED_SIMULATION_TRUE@SERIAL_FLAGS = -DSUPPORT_SERIAL=1 -DSIMULATE_SLOWNESS_OF_SERIAL=1
+@SERIAL_SPEED_SIMULATION_FALSE@SERIAL_FLAGS = -DSUPPORT_SERIAL=1 
 
-AM_CPPFLAGS = -DGRUB_UTIL=1 -DFSYS_EXT2FS=1 -DFSYS_FAT=1 \
+AM_CPPFLAGS = -DGRUB_UTIL=1 -DFSYS_EXT2FS=1 -DFSYS_FAT=1 -DFSYS_FFS=1 \
-	-DFSYS_UFS2=1 \
+	-DFSYS_ISO9660=1 -DFSYS_JFS=1 -DFSYS_MINIX=1 -DFSYS_REISERFS=1 \
-	-DFSYS_FFS=1 -DFSYS_MINIX=1 -DSUPPORT_HERCULES=1 \
+	-DFSYS_UFS2=1 -DFSYS_VSTAFS=1 -DFSYS_XFS=1 \
+	-DUSE_MD5_PASSWORDS=1 -DSUPPORT_HERCULES=1 \
 	$(SERIAL_FLAGS) -I$(top_srcdir)/stage2 \
 	-I$(top_srcdir)/stage1 -I$(top_srcdir)/lib
 

lib/device.c

@@ -558,7 +558,7 @@ read_device_map (FILE *fp, char **map, const char *map_file)
 	  show_error (line_number, "Bad device number");
 	  return 0;
 	}
-      else if (drive > 8)
+      else if (drive > 127)
 	{
 	  show_warning (line_number,
 			"Ignoring %cd%d due to a BIOS limitation",
@@ -821,9 +821,20 @@ restore_device_map (char **map)
 }
 
 #ifdef __linux__
-/* Linux-only function, because Linux has a bug that the disk cache for
+/* Linux-only functions, because Linux has a bug that the disk cache for
    a whole disk is not consistent with the one for a partition of the
    disk.  */
+int
+is_disk_device (char **map, int drive)
+{
+  struct stat st;
+  
+  assert (map[drive] != 0);
+  assert (stat (map[drive], &st) == 0);
+  /* For now, disk devices under Linux are all block devices.  */
+  return S_ISBLK (st.st_mode);
+}
+
 int
 write_to_partition (char **map, int drive, int partition,
 		    int sector, int size, const char *buf)

lib/device.h

@@ -1,7 +1,7 @@
 /* device.h - Define macros and declare prototypes for device.c */
 /*
  *  GRUB  --  GRand Unified Bootloader
- *  Copyright (C) 1999, 2000  Free Software Foundation, Inc.
+ *  Copyright (C) 1999,2000,2004  Free Software Foundation, Inc.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -40,6 +40,7 @@ extern int init_device_map (char ***map, const char *map_file,
 extern void restore_device_map (char **map);
 
 #ifdef __linux__
+extern int is_disk_device (char **map, int drive);
 extern int write_to_partition (char **map, int drive, int partition,
 			       int offset, int size, const char *buf);
 #endif /* __linux__ */

stage2/asm.S

@@ -1,6 +1,6 @@
 /*
  *  GRUB  --  GRand Unified Bootloader
- *  Copyright (C) 1999,2000,2001,2002 Free Software Foundation, Inc.
+ *  Copyright (C) 1999,2000,2001,2002,2004 Free Software Foundation, Inc.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -211,14 +211,14 @@ ENTRY(hard_stop)
  * jumped to with a known state.
  */
 ENTRY(stop_floppy)
+	pusha
 	call	EXT_C(prot_to_real)
 	.code16
-	pusha
 	xorb	%dl, %dl
 	int	$0x13
-	popa
 	DATA32  call EXT_C(real_to_prot)
 	.code32
+	popa
 	ret
 
 /*

stage2/char_io.c

@@ -912,8 +912,16 @@ grub_tolower (int c)
 int
 grub_isspace (int c)
 {
-  if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
+  switch (c)
+    {
+    case ' ':
+    case '\t':
+    case '\r':
+    case '\n':
       return 1;
+    default:
+      break;
+    }
 
   return 0;
 }

stage2/disk_io.c

@@ -366,7 +366,8 @@ int
 devwrite (int sector, int sector_count, char *buf)
 {
 #if defined(GRUB_UTIL) && defined(__linux__)
-  if (current_partition != 0xFFFFFF)
+  if (current_partition != 0xFFFFFF
+      && is_disk_device (device_map, current_drive))
     {
       /* If the grub shell is running under Linux and the user wants to
 	 embed a Stage 1.5 into a partition instead of a MBR, use system