2003-01-07 Yoshinori K. Okuji <okuji@enbug.org>

* util/i386/pc/pupa-setup.c (setup): Convert the endianness of
		the length of a blocklist correctly.

			* util/i386/pc/biosdisk.c (pupa_util_biosdisk_open) [__linux__]:
				Use ioctl only if the OS file is a block device.
					(pupa_util_biosdisk_open): Don't use ST.ST_BLOCKS, because it is
						not very useful for normal files.

							* kern/main.c (pupa_set_root_dev): New function.
								(pupa_load_normal_mode): Likewise.
									(pupa_main): Call those above.

										* include/pupa/types.h (pupa_swap_bytes16): Cast the result to
											pupa_uint16_t.

												* include/pupa/kernel.h (pupa_enter_normal_mode): Removed.

ChangeLog

@@ -1,3 +1,22 @@
+2003-01-07  Yoshinori K. Okuji  <okuji@enbug.org>
+
+	* util/i386/pc/pupa-setup.c (setup): Convert the endianness of
+	the length of a blocklist correctly.
+
+	* util/i386/pc/biosdisk.c (pupa_util_biosdisk_open) [__linux__]:
+	Use ioctl only if the OS file is a block device.
+	(pupa_util_biosdisk_open): Don't use ST.ST_BLOCKS, because it is
+	not very useful for normal files.
+
+	* kern/main.c (pupa_set_root_dev): New function.
+	(pupa_load_normal_mode): Likewise.
+	(pupa_main): Call those above.
+
+	* include/pupa/types.h (pupa_swap_bytes16): Cast the result to
+	pupa_uint16_t.
+
+	* include/pupa/kernel.h (pupa_enter_normal_mode): Removed.
+
 2003-01-06  Yoshinori K. Okuji  <okuji@enbug.org>
 
 	* util/i386/pc/pupa-setup.c: Include pupa/machine/kernel.h.

include/grub/kernel.h

@@ -55,7 +55,4 @@ pupa_addr_t pupa_get_end_addr (void);
 /* Register all the exported symbols. This is automatically generated.  */
 void pupa_register_exported_symbols (void);
 
-/* Enter normal mode.  */
-void pupa_enter_normal_mode (void);
-
 #endif /* ! PUPA_KERNEL_HEADER */

include/grub/types.h

@@ -85,7 +85,7 @@ typedef pupa_int32_t	pupa_ssize_t;
 #define pupa_swap_bytes16(x)	\
 ({ \
    pupa_uint16_t _x = (x); \
-   (_x << 8) | (_x >> 8); \
+   (pupa_uint16_t) ((_x << 8) | (_x >> 8)); \
 })
 
 #define pupa_swap_bytes32(x)	\

kern/main.c

@@ -1,3 +1,4 @@
+/* main.c - the kernel main routine */
 /*
  *  PUPA  --  Preliminary Universal Programming Architecture for GRUB
  *  Copyright (C) 2002  Yoshinori K. Okuji <okuji@enbug.org>
@@ -56,12 +57,68 @@ pupa_add_unused_region (void)
     pupa_mm_init_region ((void *) pupa_end_addr, pupa_total_module_size);
 }
 
+/* Set the root device according to the dl prefix.  */
+static void
+pupa_set_root_dev (void)
+{
+  const char *prefix;
+
+  prefix = pupa_dl_get_prefix ();
+  
+  if (prefix)
+    {
+      char *dev;
+
+      dev = pupa_file_get_device_name (prefix);
+      if (dev)
+	{
+	  pupa_device_set_root (dev);
+	  pupa_free (dev);
+	}
+    }
+}
+
+/* Load the normal mode module and execute the normal mode if possible.  */
+static void
+pupa_load_normal_mode (void)
+{
+  if (pupa_dl_load ("normal"))
+    {
+      void (*normal_func) (const char *config);
+      
+      /* If the function pupa_enter_normal_mode is present, call it.  */
+      normal_func = pupa_dl_resolve_symbol ("pupa_enter_normal_mode");
+      if (normal_func)
+	{
+	  char *config;
+	  char *prefix;
+
+	  prefix = pupa_dl_get_prefix ();
+	  if (! prefix)
+	    pupa_fatal ("The dl prefix is not set!");
+	  
+	  config = pupa_malloc (pupa_strlen (prefix) + sizeof ("/pupa.cfg"));
+	  if (! config)
+	    pupa_fatal ("out of memory");
+
+	  pupa_sprintf (config, "%s/pupa.cfg", prefix);
+	  (*normal_func) (config);
+	  pupa_free (config);
+	}
+      else
+	pupa_printf ("No entrance routine in the normal mode!\n");
+    }
+  else
+    pupa_printf ("Failed to load the normal mode.\n");
+  
+  /* Ignore any error, because we have the rescue mode anyway.  */
+  pupa_errno = PUPA_ERR_NONE;
+}
+
 /* The main routine.  */
 void
 pupa_main (void)
 {
-  void (*normal_func) (void);
-  
   /* First of all, initialize the machine.  */
   pupa_machine_init ();
 
@@ -70,14 +127,17 @@ pupa_main (void)
   pupa_printf ("Welcome to PUPA!\n\n");
   pupa_setcolorstate (PUPA_TERM_COLOR_STANDARD);
 
+  /* It is better to set the root device as soon as possible,
+     for convenience.  */
+  pupa_set_root_dev ();
+
+  /* Load pre-loaded modules and free the space.  */
   pupa_register_exported_symbols ();
   pupa_load_modules ();
   pupa_add_unused_region ();
 
-  /* If the function pupa_enter_normal_mode is present, call it.  */
+  /* Go to the real world.  */
-  normal_func = pupa_dl_resolve_symbol ("pupa_enter_normal_mode");
+  pupa_load_normal_mode ();
-  if (normal_func)
-    (*normal_func) ();
   
   /* If pupa_enter_normal_mode fails or doesn't exist, enter rescue mode.  */
   pupa_printf ("Entering into rescue mode...\n");

util/i386/pc/biosdisk.c

@@ -177,6 +177,12 @@ pupa_util_biosdisk_open (const char *name, pupa_disk_t disk)
     if (! fd)
       return pupa_error (PUPA_ERR_BAD_DEVICE, "cannot open `%s'", map[drive]);
 
+    if (fstat (fd, &st) < 0 || ! S_ISBLK (st.st_mode))
+      {
+	close (fd);
+	goto fail;
+      }
+    
     if (ioctl (fd, BLKGETSIZE, &nr))
       {
 	close (fd);
@@ -198,10 +204,6 @@ pupa_util_biosdisk_open (const char *name, pupa_disk_t disk)
   if (stat (map[drive], &st) < 0)
     return pupa_error (PUPA_ERR_BAD_DEVICE, "cannot stat `%s'", map[drive]);
 
-  if (st.st_blocks)
-    disk->total_sectors = st.st_blocks;
-  else
-    /* Hmm... Use st_size instead.  */
   disk->total_sectors = st.st_size >> PUPA_DISK_SECTOR_BITS;
   
   pupa_util_info ("the size of %s is %lu", name, disk->total_sectors);

util/i386/pc/grub-setup.c

@@ -129,7 +129,7 @@ setup (const char *prefix, const char *dir,
       if (block != first_block
 	  && (pupa_le_to_cpu32 (prev->start)
 	      + pupa_le_to_cpu16 (prev->len)) == sector)
-	prev->len = pupa_le_to_cpu16 (prev->len) + 1;
+	prev->len = pupa_cpu_to_le16 (pupa_le_to_cpu16 (prev->len) + 1);
       else
 	{
 	  block->start = pupa_cpu_to_le32 (sector);