On 27.04.2012 16:05, Albert Zeyer wrote:
> Hi,
>
> A while ago, I improved the grub-mount patches a bit. Mostly:
You've based your work on abandonded branch. All grub-mount parts were
merged back in trunk a long time ago. At least half of the work you've
done was unnecessary with newer version.
> * Write a simplified compile.py script.
Custom compile scripts are likely to break often. If there were any
problem in our compile scripts for your platform it's better to announce
it here.
> * Remove nested functions. They don't work on Mac because of stack
> execution protection.
As I said, your approach isn't just ugly it results in bugs.
> * Improve ReiserFS reading performance.
I wrote reiserfs caching a long time ago but it didn'tmake any sizeable
difference. As for making offset search a logarithmic, here is a patch
by few simple modifications of get_item.


-- 
Regards
Vladimir 'φ-coder/phcoder' Serbinenko

=== modified file 'grub-core/Makefile.am'
--- grub-core/Makefile.am	2012-02-29 14:08:08 +0000
+++ grub-core/Makefile.am	2012-05-01 14:19:39 +0000
@@ -96,6 +96,7 @@
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/time.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/pit.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/pci.h
 endif
 
 if COND_i386_coreboot
@@ -126,6 +127,7 @@
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/time.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/efi/disk.h
 KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/pit.h
+KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/pci.h
 endif
 
 if COND_ia64_efi

=== modified file 'grub-core/Makefile.core.def'
--- grub-core/Makefile.core.def	2012-04-01 19:35:18 +0000
+++ grub-core/Makefile.core.def	2012-05-01 13:59:06 +0000
@@ -139,11 +139,13 @@
 
   i386_efi = kern/i386/tsc.c;
   i386_efi = kern/i386/efi/init.c;
+  i386_efi = bus/pci.c;
 
   x86_64_efi = kern/i386/tsc.c;
   x86_64_efi = kern/x86_64/dl.c;
   x86_64_efi = kern/x86_64/efi/callwrap.S;
   x86_64_efi = kern/i386/efi/init.c;
+  x86_64_efi = bus/pci.c;
 
   ia64_efi = kern/ia64/efi/startup.S;
   ia64_efi = kern/ia64/efi/init.c;
@@ -475,8 +477,6 @@
   common = bus/pci.c;
 
   enable = i386_pc;
-  enable = i386_efi;
-  enable = x86_64_efi;
   enable = i386_ieee1275;
   enable = i386_coreboot;
   enable = i386_multiboot;

=== modified file 'grub-core/commands/legacycfg.c'
--- grub-core/commands/legacycfg.c	2012-03-06 13:11:10 +0000
+++ grub-core/commands/legacycfg.c	2012-05-01 12:23:30 +0000
@@ -123,7 +123,8 @@
 		return grub_errno;
 	      }
 	    args[0] = oldname;
-	    grub_normal_add_menu_entry (1, args, NULL, NULL, NULL, NULL, NULL,
+	    grub_normal_add_menu_entry (1, args, NULL, NULL, "legacy",
+					NULL, NULL,
 					entrysrc, 0);
 	    grub_free (args);
 	    entrysrc[0] = 0;

=== modified file 'grub-core/commands/menuentry.c'
--- grub-core/commands/menuentry.c	2012-03-19 09:56:43 +0000
+++ grub-core/commands/menuentry.c	2012-05-01 12:22:47 +0000
@@ -37,6 +37,8 @@
     {"source", 4, 0,
      N_("Use STRING as menu entry body."), N_("STRING"), ARG_TYPE_STRING},
     {"id", 0, 0, N_("Menu entry identifier."), N_("STRING"), ARG_TYPE_STRING},
+    {"unrestricted", 0, 0, N_("This entry can be booted by any user."),
+     0, ARG_TYPE_NONE},
     {0, 0, 0, 0, 0, 0}
   };
 
@@ -254,6 +256,7 @@
   char *prefix;
   unsigned len;
   grub_err_t r;
+  const char *users;
 
   if (! argc)
     return grub_error (GRUB_ERR_BAD_ARGUMENT, "missing arguments");
@@ -264,12 +267,19 @@
   if (! ctxt->state[3].set && ! ctxt->script)
     return grub_error (GRUB_ERR_BAD_ARGUMENT, "no menuentry definition");
 
+  if (ctxt->state[1].set)
+    users = ctxt->state[1].arg;
+  else if (ctxt->state[5].set)
+    users = NULL;
+  else
+    users = "";
+
   if (! ctxt->script)
     return grub_normal_add_menu_entry (argc, (const char **) args,
 				       (ctxt->state[0].set ? ctxt->state[0].args
 					: NULL),
 				       ctxt->state[4].arg,
-				       ctxt->state[1].arg,
+				       users,
 				       ctxt->state[2].arg, 0,
 				       ctxt->state[3].arg,
 				       ctxt->extcmd->cmd->name[0] == 's');
@@ -287,7 +297,7 @@
 
   r = grub_normal_add_menu_entry (argc - 1, (const char **) args,
 				  ctxt->state[0].args, ctxt->state[4].arg,
-				  ctxt->state[1].arg,
+				  users,
 				  ctxt->state[2].arg, prefix, src + 1,
 				  ctxt->extcmd->cmd->name[0] == 's');
 

=== modified file 'grub-core/fs/reiserfs.c'
--- grub-core/fs/reiserfs.c	2012-02-27 20:36:58 +0000
+++ grub-core/fs/reiserfs.c	2012-05-01 15:44:15 +0000
@@ -468,7 +468,7 @@
 static grub_err_t
 grub_reiserfs_get_item (struct grub_reiserfs_data *data,
                         const struct grub_reiserfs_key *key,
-                        struct grub_fshelp_node *item)
+                        struct grub_fshelp_node *item, int exact)
 {
   grub_uint32_t block_number;
   struct grub_reiserfs_block_header *block_header = 0;
@@ -581,30 +581,47 @@
           item_headers
             = (struct grub_reiserfs_item_header *) (block_header + 1);
           for (i = 0;
-               i < item_count
-                 && (grub_reiserfs_compare_keys (key, &(item_headers[i].key))
-                     != 0);
+               i < item_count;
                i++)
-            {
-#ifdef GRUB_REISERFS_DEBUG
-              if (key->directory_id == item_headers[i].key.directory_id && \
-                  key->object_id == item_headers[i].key.object_id)
-                grub_printf("C");
-              else
-                grub_printf(" ");
-              grub_printf(" %03d/%03d ", i + 1, item_count);
-              grub_reiserfs_print_key (&(item_headers[i].key));
-#endif
-            }
-          if (i < item_count)
-            block_key = &(item_headers[i].key);
+	    {
+	      int val;
+	      val = grub_reiserfs_compare_keys (key, &(item_headers[i].key));
+	      if (val == 0)
+		{
+		  block_key = &(item_headers[i].key);
+		  break;
+		}
+	      if (val < 0 && exact)
+		break;
+	      if (val < 0)
+		{
+		  if (i == 0)
+		    {
+		      grub_error (GRUB_ERR_READ_ERROR, "unexpected btree node");
+		      goto fail;
+		    }
+		  i--;
+		  block_key = &(item_headers[i].key);
+		  break;
+		}
+	    }
+	  if (!exact && i == item_count)
+	    {
+	      if (i == 0)
+		{
+		  grub_error (GRUB_ERR_READ_ERROR, "unexpected btree node");
+		  goto fail;
+		}
+	      i--;
+	      block_key = &(item_headers[i].key);
+	    }
         }
     }
   while (current_level > 1);
 
   item->data = data;
 
-  if (i == item_count || grub_reiserfs_compare_keys (key, block_key))
+  if (!block_key)
     {
       item->block_number = 0;
       item->block_position = 0;
@@ -654,7 +671,7 @@
   grub_reiserfs_set_key_type (&key, GRUB_REISERFS_DIRECT,
                               grub_reiserfs_get_key_version (&key));
 
-  if (grub_reiserfs_get_item (node->data, &key, &found) != GRUB_ERR_NONE)
+  if (grub_reiserfs_get_item (node->data, &key, &found, 1) != GRUB_ERR_NONE)
     goto fail;
 
   if (found.block_number == 0)
@@ -797,7 +814,7 @@
               if (! entry_item)
                 goto fail;
 
-              if (grub_reiserfs_get_item (data, &entry_key, entry_item)
+              if (grub_reiserfs_get_item (data, &entry_key, entry_item, 1)
                   != GRUB_ERR_NONE)
                 {
                   grub_free (entry_item);
@@ -816,7 +833,7 @@
                   grub_reiserfs_set_key_offset (&entry_key, 0);
                   grub_reiserfs_set_key_type (&entry_key, GRUB_REISERFS_STAT,
                                               2);
-                  if (grub_reiserfs_get_item (data, &entry_key, entry_item)
+                  if (grub_reiserfs_get_item (data, &entry_key, entry_item, 1)
                       != GRUB_ERR_NONE)
                     {
                       grub_free (entry_item);
@@ -959,7 +976,7 @@
       grub_reiserfs_set_key_offset (&(item_headers[block_position].key),
                                     next_offset);
       if (grub_reiserfs_get_item (data, &(item_headers[block_position].key),
-                                  &directory_item) != GRUB_ERR_NONE)
+                                  &directory_item, 1) != GRUB_ERR_NONE)
         goto fail;
       block_number = directory_item.block_number;
       block_position = directory_item.block_position;
@@ -1001,7 +1018,7 @@
   key.u.v2.offset_type = 0;
   grub_reiserfs_set_key_type (&key, GRUB_REISERFS_DIRECTORY, 2);
   grub_reiserfs_set_key_offset (&key, 1);
-  if (grub_reiserfs_get_item (data, &key, &root) != GRUB_ERR_NONE)
+  if (grub_reiserfs_get_item (data, &key, &root, 1) != GRUB_ERR_NONE)
     goto fail;
   if (root.block_number == 0)
     {
@@ -1017,7 +1034,7 @@
   key.object_id = found->header.key.object_id;
   grub_reiserfs_set_key_type (&key, GRUB_REISERFS_STAT, 2);
   grub_reiserfs_set_key_offset (&key, 0);
-  if (grub_reiserfs_get_item (data, &key, &info) != GRUB_ERR_NONE)
+  if (grub_reiserfs_get_item (data, &key, &info, 1) != GRUB_ERR_NONE)
     goto fail;
   if (info.block_number == 0)
     {
@@ -1097,11 +1114,27 @@
 		(unsigned long long) final_position,
 		(unsigned long long) (final_position - initial_position),
 		(unsigned long) len);
+
+  grub_reiserfs_set_key_offset (&key, initial_position + 1);
+
+  if (grub_reiserfs_get_item (data, &key, &found, 0) != GRUB_ERR_NONE)
+    goto fail;
+
+  if (found.block_number == 0)
+    {
+      grub_error (GRUB_ERR_READ_ERROR, "offset %lld not found",
+		  (unsigned long long) initial_position);
+      goto fail;
+    }
+
+  current_key_offset = grub_reiserfs_get_key_offset (&found.header.key);
+  current_position = current_key_offset - 1;
+
   while (current_position < final_position)
     {
       grub_reiserfs_set_key_offset (&key, current_key_offset);
 
-      if (grub_reiserfs_get_item (data, &key, &found) != GRUB_ERR_NONE)
+      if (grub_reiserfs_get_item (data, &key, &found, 1) != GRUB_ERR_NONE)
         goto fail;
       if (found.block_number == 0)
         goto fail;
@@ -1245,7 +1278,7 @@
 
  fail:
   grub_free (indirect_block_ptr);
-  return 0;
+  return -1;
 }
 
 /* Close the file FILE.  */
@@ -1296,7 +1329,7 @@
   root_key.u.v2.offset_type = 0;
   grub_reiserfs_set_key_type (&root_key, GRUB_REISERFS_DIRECTORY, 2);
   grub_reiserfs_set_key_offset (&root_key, 1);
-  if (grub_reiserfs_get_item (data, &root_key, &root) != GRUB_ERR_NONE)
+  if (grub_reiserfs_get_item (data, &root_key, &root, 1) != GRUB_ERR_NONE)
     goto fail;
   if (root.block_number == 0)
     {

=== modified file 'grub-core/kern/efi/mm.c'
--- grub-core/kern/efi/mm.c	2011-05-15 09:22:59 +0000
+++ grub-core/kern/efi/mm.c	2012-04-28 16:11:38 +0000
@@ -22,6 +22,10 @@
 #include <grub/efi/api.h>
 #include <grub/efi/efi.h>
 
+#if defined (__i386__) || defined (__x86_64__)
+#include <grub/pci.h>
+#endif
+
 #define NEXT_MEMORY_DESCRIPTOR(desc, size)	\
   ((grub_efi_memory_descriptor_t *) ((char *) (desc) + (size)))
 
@@ -103,6 +107,74 @@
   efi_call_2 (b->free_pages, address, pages);
 }
 
+#if defined (__i386__) || defined (__x86_64__)
+
+static grub_uint8_t
+find_cap (grub_pci_device_t dev, grub_uint8_t cap)
+{
+  grub_uint8_t pos = 0x34;
+  int ttl = 48;
+
+  while (ttl--)
+    {
+      grub_uint8_t id;
+      grub_pci_address_t addr;
+
+      addr = grub_pci_make_address (dev, pos);
+      pos = grub_pci_read_byte (addr);
+      if (pos < 0x40)
+	break;
+
+      pos &= ~3;
+
+      addr = grub_pci_make_address (dev, pos);      
+      id = grub_pci_read_byte (addr);
+
+      if (id == 0xff)
+	break;
+      
+      if (id == cap)
+	return pos;
+      pos++;
+    }
+  return 0;
+}
+
+static void
+stop_broadcom (void)
+{
+  auto int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
+				       grub_pci_id_t pciid);
+
+  int NESTED_FUNC_ATTR find_card (grub_pci_device_t dev,
+				  grub_pci_id_t pciid)
+    {
+      grub_pci_address_t addr;
+      grub_uint8_t cap;
+      grub_uint16_t pm_state;
+
+      if ((pciid & 0xffff) != GRUB_PCI_VENDOR_BROADCOM)
+	return 0;
+
+      addr = grub_pci_make_address (dev, GRUB_PCI_REG_CLASS);
+      if (grub_pci_read (addr) >> 24 != GRUB_PCI_CLASS_NETWORK)
+	return 0;
+      cap = find_cap (dev, GRUB_PCI_CAP_POWER_MANAGEMENT);
+      if (!cap)
+	return 0;
+      addr = grub_pci_make_address (dev, cap + 4);
+      pm_state = grub_pci_read_word (addr);
+      pm_state = pm_state | 0x03;
+      grub_pci_write_word (addr, pm_state);
+      grub_pci_read_word (addr);
+      return 0;
+    }
+
+  grub_pci_iterate (find_card);
+}
+
+#endif
+
 grub_err_t
 grub_efi_finish_boot_services (grub_efi_uintn_t *outbuf_size, void *outbuf,
 			       grub_efi_uintn_t *map_key,
@@ -112,6 +184,14 @@
   grub_efi_boot_services_t *b;
   grub_efi_status_t status;
 
+#if defined (__i386__) || defined (__x86_64__)
+  const grub_uint16_t apple[] = { 'A', 'p', 'p', 'l', 'e' };
+  int is_apple;
+
+  is_apple = (grub_memcmp (grub_efi_system_table->firmware_vendor,
+			   apple, sizeof (apple)) == 0);
+#endif
+
   if (grub_efi_get_memory_map (&finish_mmap_size, finish_mmap_buf, &finish_key,
 			       &finish_desc_size, &finish_desc_version) < 0)
     return grub_error (GRUB_ERR_IO, "couldn't retrieve memory map");
@@ -145,6 +225,11 @@
   if (efi_desc_version)
     *efi_desc_version = finish_desc_version;
 
+#if defined (__i386__) || defined (__x86_64__)
+  if (is_apple)
+    stop_broadcom ();
+#endif
+
   return GRUB_ERR_NONE;
 }
 

=== modified file 'grub-core/lib/relocator.c'
--- grub-core/lib/relocator.c	2012-04-13 14:55:20 +0000
+++ grub-core/lib/relocator.c	2012-05-01 12:30:35 +0000
@@ -368,7 +368,7 @@
 							    GRUB_MM_ALIGN);
 	h->size
 	  = ((subchu->start + subchu->size + GRUB_MM_ALIGN - 1) / GRUB_MM_ALIGN)
-	  - (subchu->start / GRUB_MM_ALIGN) - 1;
+	  - (subchu->start / GRUB_MM_ALIGN);
 	h->next = h;
 	h->magic = GRUB_MM_ALLOC_MAGIC;
 	grub_free (h + 1);

=== modified file 'include/grub/pci.h'
--- include/grub/pci.h	2011-10-01 19:37:02 +0000
+++ include/grub/pci.h	2012-04-28 15:59:34 +0000
@@ -81,6 +81,19 @@
 #define  GRUB_PCI_STATUS_DEVSEL_TIMING_SHIFT 9
 #define  GRUB_PCI_STATUS_DEVSEL_TIMING_MASK 0x0600
 #define  GRUB_PCI_CLASS_SUBCLASS_VGA  0x0300
+enum
+  {
+    GRUB_PCI_CLASS_NETWORK = 0x02
+  };
+enum
+  {
+    GRUB_PCI_CAP_POWER_MANAGEMENT = 0x01
+  };
+
+enum
+  {
+    GRUB_PCI_VENDOR_BROADCOM = 0x14e4
+  };
 
 #ifndef ASM_FILE
 typedef grub_uint32_t grub_pci_id_t;

=== modified file 'util/grub.d/00_header.in'
--- util/grub.d/00_header.in	2012-03-04 13:55:13 +0000
+++ util/grub.d/00_header.in	2012-04-29 19:49:48 +0000
@@ -278,9 +278,15 @@
 	else
 	    verbose=" --verbose"
 	fi
+	timeout="$2"
+	if [ "x${timeout}" = "x0" ]; then
+	    timeout=10
+	fi  
 	cat << EOF
 if sleep$verbose --interruptible ${1} ; then
-  set timeout=${2}
+  set timeout=0
+else
+  set timeout=${timeout}
 fi
 EOF
     else

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