Import grub2 1.99-r2

BUG=chromium-os:21244
TEST=build grub and see new grub installed (after related unmasking inc chromiumos-overlay)

Change-Id: I015181a4a5d6273bdecbda9c76293c2b7f829bd5
Reviewed-on: https://gerrit.chromium.org/gerrit/11880
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Ready: Anush Elangovan <anush@chromium.org>
Tested-by: Anush Elangovan <anush@chromium.org>

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/1.99-call_proper_grub_probe.patch

@@ -0,0 +1,12 @@
+diff -urN grub-1.99/util/grub.d/30_os-prober.in grub-1.99.new/util/grub.d/30_os-prober.in
+--- grub-1.99/util/grub.d/30_os-prober.in	2010-12-25 18:13:57.000000000 +0100
++++ grub-1.99.new/util/grub.d/30_os-prober.in	2011-08-28 12:35:40.965038455 +0200
+@@ -168,7 +168,7 @@
+       done
+     ;;
+     macosx)
+-      OSXUUID="`grub-probe --target=fs_uuid --device ${DEVICE} 2> /dev/null`"
++      OSXUUID="`${grub_probe} --target=fs_uuid --device ${DEVICE} 2> /dev/null`"
+       osx_entry xnu_kernel 32
+       osx_entry xnu_kernel64 64
+     ;;

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/1.99-do_not_stat_so_often.patch

@@ -0,0 +1,65 @@
+--- grub-core/kern/emu/getroot.c	2011-05-18 07:35:47 +0000
++++ grub-core/kern/emu/getroot.c	2011-05-21 05:03:55 +0000
+@@ -358,7 +358,7 @@
+ 
+       if (S_ISLNK (st.st_mode)) {
+ #ifdef __linux__
+-	if (strcmp (dir, "mapper") == 0) {
++	if (strcmp (dir, "mapper") == 0 || strcmp (dir, "/dev/mapper") == 0) {
+ 	  /* Follow symbolic links under /dev/mapper/; the canonical name
+ 	     may be something like /dev/dm-0, but the names under
+ 	     /dev/mapper/ are more human-readable and so we prefer them if
+@@ -609,20 +609,27 @@
+ 
+   if (os_dev)
+     {
+-      if (stat (os_dev, &st) >= 0)
+-	dev = st.st_rdev;
+-      else
++      char *tmp = os_dev;
++      os_dev = canonicalize_file_name (os_dev);
++      free (tmp);
++    }
++
++  if (os_dev)
++    {
++      if (strncmp (os_dev, "/dev/dm-", sizeof ("/dev/dm-") - 1) != 0)
++	return os_dev;
++      if (stat (os_dev, &st) < 0)
+ 	grub_util_error ("cannot stat `%s'", os_dev);
+       free (os_dev);
+-    }
+-  else
+-    {
+-      if (stat (dir, &st) >= 0)
+-	dev = st.st_dev;
+-      else
+-	grub_util_error ("cannot stat `%s'", dir);
+-    }
+-
++      dev = st.st_rdev;
++      return grub_find_device ("/dev/mapper", dev);
++    }
++
++  if (stat (dir, &st) < 0)
++    grub_util_error ("cannot stat `%s'", dir);
++
++  dev = st.st_dev;
++  
+ #ifdef __CYGWIN__
+   /* Cygwin specific function.  */
+   os_dev = grub_find_device (dir, dev);
+
+--- grub-core/kern/emu/hostdisk.c	2011-05-18 07:35:47 +0000
++++ grub-core/kern/emu/hostdisk.c	2011-05-21 05:03:55 +0000
+@@ -1408,7 +1408,8 @@
+ 		  if (tree)
+ 		    dm_tree_free (tree);
+ 		  free (path);
+-		  char *ret = grub_find_device (NULL, (major << 8) | minor);
++		  char *ret = grub_find_device ("/dev/mapper",
++						(major << 8) | minor);
+ 		  return ret;
+ 		}
+ 
+

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/1.99-improve_devmapper.patch

@@ -0,0 +1,279 @@
+--- grub-core/kern/emu/getroot.c	2011-04-21 09:26:29 +0000
++++ grub-core/kern/emu/getroot.c	2011-05-18 07:35:47 +0000
+@@ -34,6 +34,10 @@
+ #include <stdint.h>
+ #include <grub/util/misc.h>
+ 
++#ifdef HAVE_DEVICE_MAPPER
++# include <libdevmapper.h>
++#endif
++
+ #ifdef __GNU__
+ #include <hurd.h>
+ #include <hurd/lookup.h>
+@@ -634,32 +638,65 @@
+ }
+ 
+ static int
+-grub_util_is_dmraid (const char *os_dev)
++grub_util_is_lvm (const char *os_dev)
+ {
+-  if (! strncmp (os_dev, "/dev/mapper/nvidia_", 19))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/isw_", 16))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/hpt37x_", 19))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/hpt45x_", 19))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/via_", 16))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/lsi_", 16))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/pdc_", 16))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/jmicron_", 20))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/asr_", 16))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/sil_", 16))
+-    return 1;
+-  else if (! strncmp (os_dev, "/dev/mapper/ddf1_", 17))
+-    return 1;
+-
+-  return 0;
++  if ((strncmp ("/dev/mapper/", os_dev, 12) != 0))
++    return 0;
++  
++#ifdef HAVE_DEVICE_MAPPER
++  {
++    struct dm_tree *tree;
++    uint32_t maj, min;
++    struct dm_tree_node *node = NULL;
++    const char *node_uuid;
++    struct stat st;
++
++    if (stat (os_dev, &st) < 0)
++      return 0;
++
++    tree = dm_tree_create ();
++    if (! tree)
++      {
++	grub_printf ("Failed to create tree\n");
++	grub_dprintf ("hostdisk", "dm_tree_create failed\n");
++	return 0;
++      }
++
++    maj = major (st.st_rdev);
++    min = minor (st.st_rdev);
++
++    if (! dm_tree_add_dev (tree, maj, min))
++      {
++	grub_dprintf ("hostdisk", "dm_tree_add_dev failed\n");
++	dm_tree_free (tree);
++	return 0;
++      }
++
++    node = dm_tree_find_node (tree, maj, min);
++    if (! node)
++      {
++	grub_dprintf ("hostdisk", "dm_tree_find_node failed\n");
++	dm_tree_free (tree);
++	return 0;
++      }
++    node_uuid = dm_tree_node_get_uuid (node);
++    if (! node_uuid)
++      {
++	grub_dprintf ("hostdisk", "%s has no DM uuid\n", os_dev);
++	dm_tree_free (tree);
++	return 0;
++      }
++    if (strncmp (node_uuid, "LVM-", 4) != 0)
++      {
++	dm_tree_free (tree);
++	return 0;
++      }
++    dm_tree_free (tree);
++    return 1;
++  }
++#else
++  return 1;
++#endif /* HAVE_DEVICE_MAPPER */
+ }
+ 
+ int
+@@ -671,13 +708,11 @@
+     return GRUB_DEV_ABSTRACTION_NONE;
+ 
+   /* Check for LVM.  */
+-  if (!strncmp (os_dev, "/dev/mapper/", 12)
+-      && ! grub_util_is_dmraid (os_dev)
+-      && strncmp (os_dev, "/dev/mapper/mpath", 17) != 0)
++  if (grub_util_is_lvm (os_dev))
+     return GRUB_DEV_ABSTRACTION_LVM;
+ 
+   /* Check for RAID.  */
+-  if (!strncmp (os_dev, "/dev/md", 7))
++  if (!strncmp (os_dev, "/dev/md", 7) && ! grub_util_device_is_mapped (os_dev))
+     return GRUB_DEV_ABSTRACTION_RAID;
+ #endif
+ 
+
+=== modified file 'grub-core/kern/emu/hostdisk.c'
+--- grub-core/kern/emu/hostdisk.c	2011-05-09 16:59:35 +0000
++++ grub-core/kern/emu/hostdisk.c	2011-05-18 07:35:47 +0000
+@@ -24,6 +24,7 @@
+ #include <grub/err.h>
+ #include <grub/emu/misc.h>
+ #include <grub/emu/hostdisk.h>
++#include <grub/emu/getroot.h>
+ #include <grub/misc.h>
+ #include <grub/i18n.h>
+ #include <grub/list.h>
+@@ -331,18 +332,23 @@
+   return GRUB_ERR_NONE;
+ }
+ 
++int
++grub_util_device_is_mapped (const char *dev)
++{
+ #ifdef HAVE_DEVICE_MAPPER
+-static int
+-device_is_mapped (const char *dev)
+-{
+   struct stat st;
+ 
++  if (!grub_device_mapper_supported ())
++    return 0;
++
+   if (stat (dev, &st) < 0)
+     return 0;
+ 
+   return dm_is_dm_major (major (st.st_rdev));
++#else
++  return 0;
++#endif /* HAVE_DEVICE_MAPPER */
+ }
+-#endif /* HAVE_DEVICE_MAPPER */
+ 
+ #if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
+ /* FIXME: geom actually gives us the whole container hierarchy.
+@@ -418,7 +424,7 @@
+ # endif /* !defined(HAVE_DIOCGDINFO) */
+ 
+ # ifdef HAVE_DEVICE_MAPPER
+-  if (grub_device_mapper_supported () && device_is_mapped (dev)) {
++  if (grub_util_device_is_mapped (dev)) {
+     struct dm_task *task = NULL;
+     grub_uint64_t start, length;
+     char *target_type, *params, *space;
+@@ -1149,6 +1155,54 @@
+   return ret;
+ }
+ 
++#ifdef HAVE_DEVICE_MAPPER
++static int
++grub_util_get_dm_node_linear_info (const char *dev,
++				   int *maj, int *min)
++{
++  struct dm_task *dmt;
++  void *next = NULL;
++  uint64_t length, start;
++  char *target, *params;
++  char *ptr;
++  int major, minor;
++
++  dmt = dm_task_create(DM_DEVICE_TABLE);
++  if (!dmt)
++    return 0;
++  
++  if (!dm_task_set_name(dmt, dev))
++    return 0;
++  dm_task_no_open_count(dmt);
++  if (!dm_task_run(dmt))
++    return 0;
++  next = dm_get_next_target(dmt, next, &start, &length,
++			    &target, &params);
++  if (grub_strcmp (target, "linear") != 0)
++    return 0;
++  major = grub_strtoul (params, &ptr, 10);
++  if (grub_errno)
++    {
++      grub_errno = GRUB_ERR_NONE;
++      return 0;
++    }
++  if (*ptr != ':')
++    return 0;
++  ptr++;
++  minor = grub_strtoul (ptr, 0, 10);
++  if (grub_errno)
++    {
++      grub_errno = GRUB_ERR_NONE;
++      return 0;
++    }
++  if (maj)
++    *maj = major;
++  if (min)
++    *min = minor;
++  return 1;
++}
++#endif
++
+ static char *
+ convert_system_partition_to_system_disk (const char *os_dev, struct stat *st)
+ {
+@@ -1325,9 +1379,39 @@
+ 	      node = NULL;
+ 	      goto devmapper_out;
+ 	    }
+-	  else if (strncmp (node_uuid, "DMRAID-", 7) != 0)
+-	    {
++	  if (strncmp (node_uuid, "LVM-", 4) == 0)
++	    {
++	      grub_dprintf ("hostdisk", "%s is an LVM\n", path);
++	      node = NULL;
++	      goto devmapper_out;
++	    }
++	  if (strncmp (node_uuid, "mpath-", 6) == 0)
++	    {
++	      /* Multipath partitions have partN-mpath-* UUIDs, and are
++		 linear mappings so are handled by
++		 grub_util_get_dm_node_linear_info.  Multipath disks are not
++		 linear mappings and must be handled specially.  */
++	      grub_dprintf ("hostdisk", "%s is a multipath disk\n", path);
++	      mapper_name = dm_tree_node_get_name (node);
++	      goto devmapper_out;
++	    }
++	  if (strncmp (node_uuid, "DMRAID-", 7) != 0)
++	    {
++	      int major, minor;
++	      const char *node_name;
+ 	      grub_dprintf ("hostdisk", "%s is not DM-RAID\n", path);
++
++	      if ((node_name = dm_tree_node_get_name (node))
++		  && grub_util_get_dm_node_linear_info (node_name,
++							&major, &minor))
++		{
++		  if (tree)
++		    dm_tree_free (tree);
++		  free (path);
++		  char *ret = grub_find_device (NULL, (major << 8) | minor);
++		  return ret;
++		}
++
+ 	      node = NULL;
+ 	      goto devmapper_out;
+ 	    }
+
+--- include/grub/emu/misc.h	2010-12-02 13:26:46 +0000
++++ include/grub/emu/misc.h	2011-05-18 07:35:47 +0000
+@@ -54,6 +54,8 @@
+ 
+ char *grub_make_system_path_relative_to_its_root (const char *path)
+   __attribute__ ((warn_unused_result));
++int
++grub_util_device_is_mapped (const char *dev);
+ 
+ void * EXPORT_FUNC(xmalloc) (grub_size_t size) __attribute__ ((warn_unused_result));
+ void * EXPORT_FUNC(xrealloc) (void *ptr, grub_size_t size) __attribute__ ((warn_unused_result));
+

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/1.99-stat_root_device_properly-p1.patch

@@ -0,0 +1,21 @@
+--- grub-core/kern/emu/getroot.c	2011-05-21 05:03:55 +0000
++++ grub-core/kern/emu/getroot.c	2011-06-23 17:50:41 +0000
+@@ -616,13 +616,15 @@
+ 
+   if (os_dev)
+     {
+-      if (strncmp (os_dev, "/dev/dm-", sizeof ("/dev/dm-") - 1) != 0)
++      int dm = (strncmp (os_dev, "/dev/dm-", sizeof ("/dev/dm-") - 1) == 0);
++      int root = (strcmp (os_dev, "/dev/root") == 0);
++      if (!dm && !root)
+ 	return os_dev;
+       if (stat (os_dev, &st) < 0)
+ 	grub_util_error ("cannot stat `%s'", os_dev);
+       free (os_dev);
+       dev = st.st_rdev;
+-      return grub_find_device ("/dev/mapper", dev);
++      return grub_find_device (dm ? "/dev/mapper" : "/dev", dev);
+     }
+ 
+   if (stat (dir, &st) < 0)
+

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/1.99-stat_root_device_properly-p2.patch

@@ -0,0 +1,21 @@
+--- grub-core/kern/emu/getroot.c	2011-06-23 17:50:41 +0000
++++ grub-core/kern/emu/getroot.c	2011-06-24 02:32:54 +0000
+@@ -620,11 +620,13 @@
+       int root = (strcmp (os_dev, "/dev/root") == 0);
+       if (!dm && !root)
+ 	return os_dev;
+-      if (stat (os_dev, &st) < 0)
+-	grub_util_error ("cannot stat `%s'", os_dev);
++      if (stat (os_dev, &st) >= 0)
++	{
++	  free (os_dev);
++	  dev = st.st_rdev;
++	  return grub_find_device (dm ? "/dev/mapper" : "/dev", dev);
++	}
+       free (os_dev);
+-      dev = st.st_rdev;
+-      return grub_find_device (dm ? "/dev/mapper" : "/dev", dev);
+     }
+ 
+   if (stat (dir, &st) < 0)
+

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/grub.conf.gentoo

@@ -0,0 +1,16 @@
+# This is a sample grub.conf for use with Genkernel, per the Gentoo handbook
+# http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&chap=10#doc_chap2
+# If you are not using Genkernel and you need help creating this file, you
+# should consult the handbook. Alternatively, consult the grub.conf.sample that
+# is included with the Grub documentation.
+
+default 0
+timeout 30
+#splashimage=(hd0,0)/boot/grub/splash.xpm.gz
+
+#title Gentoo Linux 2.6.24-r5
+#root (hd0,0)
+#kernel /boot/kernel-genkernel-x86-2.6.24-gentoo-r5 root=/dev/ram0 real_root=/dev/sda3
+#initrd /boot/initramfs-genkernel-x86-2.6.24-gentoo-r5
+
+# vim:ft=conf:

sdk_container/src/third_party/portage-stable/sys-boot/grub/files/grub.default

@@ -0,0 +1,36 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-boot/grub/files/grub.default,v 1.2 2011/08/30 06:45:04 scarabeus Exp $
+#
+# To populate all changes in this file you need to regenerate your
+# grub configuration file afterwards:
+#     'grub2-mkconfig -o /boot/grub2/grub.cfg'
+#
+# See the grub info page for documentation on possible variables and
+# their associated values. 
+
+GRUB_DEFAULT=0
+GRUB_HIDDEN_TIMEOUT=0
+GRUB_HIDDEN_TIMEOUT_QUIET=true
+GRUB_TIMEOUT=10
+
+GRUB_CMDLINE_LINUX_DEFAULT=""
+GRUB_CMDLINE_LINUX=""
+
+# Uncomment to disable graphical terminal (grub-pc only)
+#GRUB_TERMINAL=console
+
+# The resolution used on graphical terminal.
+# Note that you can use only modes which your graphic card supports via VBE.
+# You can see them in real GRUB with the command `vbeinfo'.
+#GRUB_GFXMODE=640x480
+
+# Background image used on graphical terminal.
+# Can be in various bitmap formats.
+#GRUB_BACKGROUND="/boot/grub2/mybackground.png"
+
+# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to kernel
+#GRUB_DISABLE_LINUX_UUID=true
+
+# Uncomment to disable generation of recovery mode menu entries
+#GRUB_DISABLE_RECOVERY=true

sdk_container/src/third_party/portage-stable/sys-boot/grub/grub-1.99-r2.ebuild

@@ -0,0 +1,338 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-boot/grub/grub-1.99-r2.ebuild,v 1.8 2011/11/18 00:04:29 vapier Exp $
+
+EAPI=4
+
+if [[ ${PV} == "9999" ]] ; then
+	EBZR_REPO_URI="http://bzr.savannah.gnu.org/r/grub/trunk/grub/"
+	LIVE_ECLASS="bzr"
+	SRC_URI=""
+	DO_AUTORECONF="true"
+else
+	MY_P=${P/_/\~}
+	SRC_URI="mirror://gnu/${PN}/${MY_P}.tar.xz
+		mirror://gentoo/${MY_P}.tar.xz"
+	# Masked until documentation guys consolidate the guide and approve
+	# it for usage.
+	#KEYWORDS="~amd64 ~mips ~x86"
+	S=${WORKDIR}/${MY_P}
+fi
+
+inherit mount-boot eutils flag-o-matic pax-utils toolchain-funcs ${DO_AUTORECONF:+autotools} ${LIVE_ECLASS}
+unset LIVE_ECLASS
+
+DESCRIPTION="GNU GRUB boot loader"
+HOMEPAGE="http://www.gnu.org/software/grub/"
+
+LICENSE="GPL-3"
+SLOT="2"
+IUSE="custom-cflags debug device-mapper efiemu nls static sdl truetype"
+
+GRUB_PLATFORMS=(
+	# everywhere:
+	emu
+	# mips only:
+	qemu-mips yeeloong
+	# amd64, x86, ppc, ppc64:
+	ieee1275
+	# amd64, x86:
+	coreboot multiboot efi-32 pc qemu
+	# amd64:
+	efi-64
+)
+IUSE+=" ${GRUB_PLATFORMS[@]/#/grub_platforms_}"
+
+# os-prober: Used on runtime to detect other OSes
+# xorriso (dev-libs/libisoburn): Used on runtime for mkrescue
+RDEPEND="
+	dev-libs/libisoburn
+	dev-libs/lzo
+	sys-boot/os-prober
+	>=sys-libs/ncurses-5.2-r5
+	debug? (
+		sdl? ( media-libs/libsdl )
+	)
+	device-mapper? ( >=sys-fs/lvm2-2.02.45 )
+	truetype? ( media-libs/freetype >=media-fonts/unifont-5 )"
+DEPEND="${RDEPEND}
+	>=dev-lang/python-2.5.2
+	sys-devel/flex
+	virtual/yacc
+	sys-apps/texinfo
+"
+if [[ -n ${DO_AUTORECONF} ]] ; then
+	DEPEND+=" >=sys-devel/autogen-5.10 sys-apps/help2man"
+else
+	DEPEND+=" app-arch/xz-utils"
+fi
+
+export STRIP_MASK="*/grub*/*/*.{mod,img}"
+QA_EXECSTACK="
+	lib64/grub2/*/setjmp.mod
+	lib64/grub2/*/kernel.img
+	sbin/grub2-probe
+	sbin/grub2-setup
+	sbin/grub2-mkdevicemap
+	bin/grub2-script-check
+	bin/grub2-fstest
+	bin/grub2-mklayout
+	bin/grub2-menulst2cfg
+	bin/grub2-mkrelpath
+	bin/grub2-mkpasswd-pbkdf2
+	bin/grub2-mkfont
+	bin/grub2-editenv
+	bin/grub2-mkimage
+"
+
+QA_WX_LOAD="
+	lib*/grub2/*/kernel.img
+	lib*/grub2/*/setjmp.mod
+"
+
+grub_run_phase() {
+	local phase=$1
+	local platform=$2
+	[[ -z ${phase} || -z ${platform} ]] && die "${FUNCNAME} [phase] [platform]"
+
+	[[ -d "${WORKDIR}/build-${platform}" ]] || \
+		{ mkdir "${WORKDIR}/build-${platform}" || die ; }
+	pushd "${WORKDIR}/build-${platform}" > /dev/null || die
+
+	echo ">>> Running ${phase} for platform \"${platform}\""
+	echo ">>> Working in: \"${WORKDIR}/build-${platform}\""
+
+	grub_${phase} ${platform}
+
+	popd > /dev/null || die
+}
+
+grub_src_configure() {
+	local platform=$1
+	local target
+
+	[[ -z ${platform} ]] && die "${FUNCNAME} [platform]"
+
+	# if we have no platform then --with-platform=guessed does not work
+	[[ ${platform} == "guessed" ]] && platform=""
+
+	# check if we have to specify the target (EFI)
+	# or just append correct --with-platform
+	if [[ -n ${platform} ]]; then
+		if [[ ${platform} == efi* ]]; then
+			# EFI platform hack
+			[[ ${platform/*-} == 32 ]] && target=i386
+			[[ ${platform/*-} == 64 ]] && target=x86_64
+			# program-prefix is required empty because otherwise it is equal to
+			# target variable, which we do not want at all
+			platform="
+				--with-platform=${platform/-*}
+				--target=${target}
+				--program-prefix=
+			"
+		else
+			platform=" --with-platform=${platform}"
+		fi
+	fi
+
+	ECONF_SOURCE="${WORKDIR}/${P}/" \
+	econf \
+		--disable-werror \
+		--sbindir=/sbin \
+		--bindir=/bin \
+		--libdir=/$(get_libdir) \
+		--program-transform-name=s,grub,grub2, \
+		$(use_enable debug mm-debug) \
+		$(use_enable debug grub-emu-usb) \
+		$(use_enable device-mapper) \
+		$(use_enable efiemu) \
+		$(use_enable nls) \
+		$(use_enable truetype grub-mkfont) \
+		$(use sdl && use_enable debug grub-emu-sdl) \
+		${platform}
+}
+
+grub_src_compile() {
+	default_src_compile
+}
+
+grub_src_install() {
+	default_src_install
+}
+
+src_prepare() {
+	local i j archs
+
+	epatch \
+		"${FILESDIR}/1.99-call_proper_grub_probe.patch" \
+		"${FILESDIR}/1.99-improve_devmapper.patch" \
+		"${FILESDIR}/1.99-do_not_stat_so_often.patch" \
+		"${FILESDIR}/1.99-stat_root_device_properly-p1.patch" \
+		"${FILESDIR}/1.99-stat_root_device_properly-p2.patch"
+
+	epatch_user
+
+	# fix texinfo file name, as otherwise the grub2.info file will be
+	# useless
+	sed -i \
+		-e '/setfilename/s:grub.info:grub2.info:' \
+		-e 's:(grub):(grub2):' \
+		"${S}"/docs/grub.texi
+
+	# autogen.sh does more than just run autotools
+	if [[ -n ${DO_AUTORECONF} ]] ; then
+		sed -i -e '/^autoreconf/s:^:set +e; e:' autogen.sh || die
+		(. ./autogen.sh) || die
+	fi
+
+	# install into the right dir for eselect #372735
+	sed -i \
+		-e '/^bashcompletiondir =/s:=.*:= $(datarootdir)/bash-completion:' \
+		util/bash-completion.d/Makefile.in || die
+
+	# get enabled platforms
+	GRUB_ENABLED_PLATFORMS=""
+	for i in ${GRUB_PLATFORMS[@]}; do
+		use grub_platforms_${i} && GRUB_ENABLED_PLATFORMS+=" ${i}"
+	done
+	[[ -z ${GRUB_ENABLED_PLATFORMS} ]] && GRUB_ENABLED_PLATFORMS="guessed"
+	elog "Going to build following platforms: ${GRUB_ENABLED_PLATFORMS}"
+}
+
+src_configure() {
+	local i
+
+	use custom-cflags || unset CFLAGS CPPFLAGS LDFLAGS
+	use static && append-ldflags -static
+
+	for i in ${GRUB_ENABLED_PLATFORMS}; do
+		grub_run_phase ${FUNCNAME} ${i}
+	done
+}
+
+src_compile() {
+	local i
+
+	for i in ${GRUB_ENABLED_PLATFORMS}; do
+		grub_run_phase ${FUNCNAME} ${i}
+	done
+}
+
+src_install() {
+	local i
+
+	for i in ${GRUB_ENABLED_PLATFORMS}; do
+		grub_run_phase ${FUNCNAME} ${i}
+	done
+
+	# No need to move the info file with the live ebuild since we
+	# already changed the generated file name during the preparation
+	# phase.
+	if [[ ${PV} != "9999" ]]; then
+		# slot all collisions with grub legacy
+		mv "${ED}"/usr/share/info/grub.info \
+			"${ED}"/usr/share/info/grub2.info || die
+	fi
+
+	# Do pax marking
+	local PAX=(
+		"sbin/grub2-probe"
+		"sbin/grub2-setup"
+		"sbin/grub2-mkdevicemap"
+		"bin/grub2-script-check"
+		"bin/grub2-fstest"
+		"bin/grub2-mklayout"
+		"bin/grub2-menulst2cfg"
+		"bin/grub2-mkrelpath"
+		"bin/grub2-mkpasswd-pbkdf2"
+		"bin/grub2-editenv"
+		"bin/grub2-mkimage"
+	)
+	for e in ${PAX[@]}; do
+		pax-mark -mp "${ED}/${e}"
+	done
+
+	# can't be in docs array as we use default_src_install in different builddir
+	dodoc AUTHORS ChangeLog NEWS README THANKS TODO
+	insinto /etc/default
+	newins "${FILESDIR}"/grub.default grub
+	cat <<EOF >> "${ED}"/lib*/grub2/grub-mkconfig_lib
+	GRUB_DISTRIBUTOR="Gentoo"
+EOF
+
+	elog
+	elog "To configure GRUB 2, check the defaults in /etc/default/grub and"
+	elog "then run 'emerge --config =${CATEGORY}/${PF}'."
+
+	# display the link to guide
+	show_doc_url
+}
+
+show_doc_url() {
+	elog
+	elog "For informations how to configure grub-2 please refer to the guide:"
+	elog "    http://dev.gentoo.org/~scarabeus/grub-2-guide.xml"
+}
+
+setup_boot_dir() {
+	local dir=$1
+	local use_legacy='n'
+
+	# Make sure target directory exists
+	mkdir -p "${dir}"
+
+	if [[ -e ${dir/2/}/menu.lst ]] ; then
+		# Legacy config exists, ask user what to do
+		einfo "Found legacy GRUB configuration.  Do you want to convert it"
+		einfo "instead of using autoconfig (y/N)?"
+		read use_legacy
+
+		use_legacy=${use_legacy,,[A-Z]}
+	fi
+
+	if [[ ${use_legacy} == y* ]] ; then
+		grub1_cfg=${dir/2/}/menu.lst
+		grub2_cfg=${dir}/grub.cfg
+
+		# GRUB legacy configuration exists.  Use it instead of doing
+		# our normal autoconfigure.
+		#
+
+		einfo "Converting legacy config at '${grub1_cfg}' for use by GRUB2."
+		ebegin "Running: grub2-menulst2cfg '${grub1_cfg}' '${grub2_cfg}'"
+		grub2-menulst2cfg "${grub1_cfg}" "${grub2_cfg}" &> /dev/null
+		eend $?
+
+		ewarn
+		ewarn "Even though the conversion above succeeded, you are STRONGLY"
+		ewarn "URGED to upgrade to the new GRUB2 configuration format."
+
+		# Remind the user about the documentation
+		show_doc_url
+	else
+		# Run GRUB 2 autoconfiguration
+		einfo "Running GRUB 2 autoconfiguration."
+		ebegin "grub2-mkconfig -o '${dir}/grub.cfg'"
+		grub2-mkconfig -o "${dir}/grub.cfg" &> /dev/null
+		eend $?
+	fi
+
+	einfo
+	einfo "Remember to run grub2-install to activate GRUB2 as your default"
+	einfo "bootloader."
+}
+
+pkg_config() {
+	local dir
+
+	mount-boot_mount_boot_partition
+
+	einfo "Enter the directory where you want to setup grub2 ('${ROOT}boot/grub2/'):"
+	read dir
+
+	[[ -z ${dir} ]] && dir="${ROOT}"boot/grub2
+
+	setup_boot_dir "${dir}"
+
+	mount-boot_pkg_postinst
+}