--- //depot/vendor/freebsd/src/sys/boot/i386/libi386/Makefile	2007/10/12 17:12:19
+++ //depot/user/jhb/boot/sys/boot/i386/libi386/Makefile	2009/03/02 17:08:30
@@ -33,6 +33,10 @@
 CFLAGS+= -DSMBIOS_SERIAL_NUMBERS
 .endif
 
+.if !defined(LOADER_NO_GPT_SUPPORT)
+CFLAGS+=	-DLOADER_GPT_SUPPORT
+.endif
+
 # Include simple terminal emulation (cons25-compatible)
 CFLAGS+= -DTERM_EMU
 
--- //depot/vendor/freebsd/src/sys/boot/i386/libi386/biosdisk.c	2008/11/19 16:05:14
+++ //depot/user/jhb/boot/sys/boot/i386/libi386/biosdisk.c	2009/03/02 17:08:30
@@ -68,12 +68,14 @@
 # define DEBUG(fmt, args...)
 #endif
 
+#ifdef LOADER_GPT_SUPPORT
 struct gpt_part {
     int		gp_index;
     uuid_t	gp_type;
     uint64_t	gp_start;
     uint64_t	gp_end;
 };
+#endif
 
 struct open_disk {
     int			od_dkunit;		/* disk unit number */
@@ -90,25 +92,31 @@
 #define BD_FLOPPY		0x0004
 #define BD_LABELOK		0x0008
 #define BD_PARTTABOK		0x0010
+#ifdef LOADER_GPT_SUPPORT
 #define	BD_GPTOK		0x0020
+#endif
     union {
 	struct {
 	    struct disklabel		mbr_disklabel;
 	    int				mbr_nslices;	/* slice count */
 	    struct dos_partition	mbr_slicetab[NEXTDOSPART];
 	} _mbr;
+#ifdef LOADER_GPT_SUPPORT
 	struct {
 	    int				gpt_nparts;		
 	    struct gpt_part		*gpt_partitions;
 	} _gpt;
+#endif
     } _data;
 };
 
 #define	od_disklabel		_data._mbr.mbr_disklabel
 #define	od_nslices		_data._mbr.mbr_nslices
 #define	od_slicetab		_data._mbr.mbr_slicetab
+#ifdef LOADER_GPT_SUPPORT
 #define	od_nparts		_data._gpt.gpt_nparts
 #define	od_partitions		_data._gpt.gpt_partitions
+#endif
 
 /*
  * List of BIOS devices, translation from disk unit number to
@@ -130,8 +138,10 @@
 
 static int	bd_int13probe(struct bdinfo *bd);
 
+#ifdef LOADER_GPT_SUPPORT
 static void	bd_printgptpart(struct open_disk *od, struct gpt_part *gp,
 		    char *prefix, int verbose);
+#endif
 static void	bd_printslice(struct open_disk *od, struct dos_partition *dp,
 		    char *prefix, int verbose);
 static void	bd_printbsdslice(struct open_disk *od, daddr_t offset,
@@ -163,8 +173,10 @@
 static int	bd_open_mbr(struct open_disk *od, struct i386_devdesc *dev);
 static int	bd_bestslice(struct open_disk *od);
 static void	bd_checkextended(struct open_disk *od, int slicenum);
+#ifdef LOADER_GPT_SUPPORT
 static int	bd_open_gpt(struct open_disk *od, struct i386_devdesc *dev);
 static struct gpt_part *bd_best_gptpart(struct open_disk *od);
+#endif
 
 /*
  * Translate between BIOS device numbers and our private unit numbers.
@@ -286,6 +298,7 @@
 	
 	if (!bd_opendisk(&od, &dev)) {
 
+#ifdef LOADER_GPT_SUPPORT
 	    /* Do we have a GPT table? */
 	    if (od->od_flags & BD_GPTOK) {
 		for (j = 0; j < od->od_nparts; j++) {
@@ -293,9 +306,10 @@
 			od->od_partitions[j].gp_index);
 		    bd_printgptpart(od, &od->od_partitions[j], line, verbose);
 		}
-
+	    } else
+#endif
 	    /* Do we have a partition table? */
-	    } else if (od->od_flags & BD_PARTTABOK) {
+	    if (od->od_flags & BD_PARTTABOK) {
 		dptr = &od->od_slicetab[0];
 
 		/* Check for a "dedicated" disk */
@@ -339,6 +353,7 @@
     return (buf);
 }
 
+#ifdef LOADER_GPT_SUPPORT
 static uuid_t efi = GPT_ENT_TYPE_EFI;
 static uuid_t freebsd_boot = GPT_ENT_TYPE_FREEBSD_BOOT;
 static uuid_t freebsd_ufs = GPT_ENT_TYPE_FREEBSD_UFS;
@@ -380,6 +395,7 @@
 	    stats);
     pager_output(line);
 }
+#endif
 
 /*
  * Print information about slices on a disk.  For the size calculations we
@@ -561,8 +577,10 @@
     }
 
     /* Determine disk layout. */
+#ifdef LOADER_GPT_SUPPORT
     error = bd_open_gpt(od, dev);
     if (error)
+#endif
 	error = bd_open_mbr(od, dev);
     
  out:
@@ -826,6 +844,7 @@
 	return (prefslice);
 }
 
+#ifdef LOADER_GPT_SUPPORT
 static int
 bd_open_gpt(struct open_disk *od, struct i386_devdesc *dev)
 {
@@ -1003,6 +1022,7 @@
     }
     return (prefpart);
 }
+#endif
 
 static int 
 bd_close(struct open_file *f)
@@ -1022,8 +1042,10 @@
     if (od->od_flags & BD_FLOPPY)
 	delay(3000000);
 #endif
+#ifdef LOADER_GPT_SUPPORT
     if (od->od_flags & BD_GPTOK)
 	free(od->od_partitions);
+#endif
     free(od);
 }
 
--- //depot/vendor/freebsd/src/sys/boot/i386/libi386/devicename.c	2008/11/17 20:55:47
+++ //depot/user/jhb/boot/sys/boot/i386/libi386/devicename.c	2009/03/02 17:08:30
@@ -120,6 +120,7 @@
 		err = EUNIT;
 		goto fail;
 	    }
+#ifdef LOADER_GPT_SUPPORT
 	    if (*cp == 'p') {		/* got a GPT partition */
 		np = cp + 1;
 		slice = strtol(np, &cp, 10);
@@ -133,6 +134,7 @@
 		}
 		partition = 0xff;
 	    } else {
+#endif
 		if (*cp == 's') {		/* got a slice number */
 		    np = cp + 1;
 		    slice = strtol(np, &cp, 10);
@@ -149,7 +151,9 @@
 		    }
 		    cp++;
 		}
+#ifdef LOADER_GPT_SUPPORT
 	    }
+#endif
 	} else {
 		cp = np;
 	}
@@ -227,14 +231,18 @@
     case DEVT_DISK:
 	cp = buf;
 	cp += sprintf(cp, "%s%d", dev->d_dev->dv_name, dev->d_unit);
+#ifdef LOADER_GPT_SUPPORT
 	if (dev->d_kind.biosdisk.partition == 0xff) {
 	    cp += sprintf(cp, "p%d", dev->d_kind.biosdisk.slice);
 	} else {
+#endif
 	    if (dev->d_kind.biosdisk.slice > 0)
 		cp += sprintf(cp, "s%d", dev->d_kind.biosdisk.slice);
 	    if (dev->d_kind.biosdisk.partition >= 0)
 		cp += sprintf(cp, "%c", dev->d_kind.biosdisk.partition + 'a');
+#ifdef LOADER_GPT_SUPPORT
 	}
+#endif
 	strcat(cp, ":");
 	break;
 
--- //depot/vendor/freebsd/src/sys/boot/i386/loader/Makefile	2009/02/21 15:10:32
+++ //depot/user/jhb/boot/sys/boot/i386/loader/Makefile	2009/03/02 17:08:30
@@ -51,6 +51,9 @@
 .if !defined(LOADER_NO_GZIP_SUPPORT)
 CFLAGS+=	-DLOADER_GZIP_SUPPORT
 .endif
+.if !defined(LOADER_NO_GPT_SUPPORT)
+CFLAGS+=	-DLOADER_GPT_SUPPORT
+.endif
 
 # Always add MI sources 
 .PATH:		${.CURDIR}/../../common
@@ -91,12 +94,14 @@
 loader.help: help.common help.i386
 	cat ${.ALLSRC} | awk -f ${.CURDIR}/../../common/merge_help.awk > ${.TARGET}
 
+.if !defined(NOFORTH)
 .PATH: ${.CURDIR}/../../forth 
 FILES=	loader loader.help loader.4th support.4th loader.conf
 FILES+= screen.4th frames.4th beastie.4th
 # XXX INSTALLFLAGS_loader= -b
 FILESMODE_loader= ${BINMODE} -b
 FILESDIR_loader.conf=	/boot/defaults
+.endif
 
 .if !exists(${DESTDIR}/boot/loader.rc)
 FILES+=	loader.rc
--- //depot/vendor/freebsd/src/sys/boot/i386/loader/main.c	2008/11/17 20:55:47
+++ //depot/user/jhb/boot/sys/boot/i386/loader/main.c	2009/03/02 17:08:30
@@ -102,7 +102,7 @@
      */
     bios_getmem();
 
-#if defined(LOADER_BZIP2_SUPPORT) || defined(LOADER_FIREWIRE_SUPPORT) || defined(LOADER_ZFS_SUPPORT)
+#if defined(LOADER_BZIP2_SUPPORT) || defined(LOADER_FIREWIRE_SUPPORT) || defined(LOADER_GPT_SUPPORT) || defined(LOADER_ZFS_SUPPORT)
     heap_top = PTOV(memtop_copyin);
     memtop_copyin -= 0x300000;
     heap_bottom = PTOV(memtop_copyin);