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Re: [PATCH] auto-load all partmaps in images generated by grub-mkrescue


From: Robert Millan
Subject: Re: [PATCH] auto-load all partmaps in images generated by grub-mkrescue
Date: Sun, 13 Apr 2008 12:58:53 +0200
User-agent: Mutt/1.5.13 (2006-08-11)

Committed.

On Tue, Mar 18, 2008 at 09:21:35PM +0100, Robert Millan wrote:
> 
> See subject :-)
> 
> -- 
> Robert Millan
> 
> <GPLv2> I know my rights; I want my phone call!
> <DRM> What use is a phone call… if you are unable to speak?
> (as seen on /.)

> 
>       * gendistlist.sh (EXTRA_DISTFILES): Add `genpartmaplist.sh'.
>       * genmk.rb (partmap): New variable.
>       (CLEANFILES, PARTMAPFILES): Add #{partmap}.
>       (#{partmap}): New target rule.
>       * genpartmaplist.sh: New file.
>       * Makefile.in (pkglib_DATA): Add partmap.lst.
>       (partmap.lst): New target rule.
>       * util/i386/pc/grub-mkrescue.in: Generate grub.cfg that loads needed
>       modules (including all partition maps), instead of preloading them.
> 
> diff -x configure -x config.h.in -x CVS -x '*~' -x '*.mk' -Nurp 
> ../grub2/gendistlist.sh ./gendistlist.sh
> --- ../grub2/gendistlist.sh   2005-08-22 19:28:59.000000000 +0200
> +++ ./gendistlist.sh  2008-03-18 13:30:28.000000000 +0100
> @@ -1,6 +1,6 @@
>  #! /bin/sh
>  #
> -# Copyright (C) 2005  Free Software Foundation, Inc.
> +# Copyright (C) 2005, 2008  Free Software Foundation, Inc.
>  #
>  # This gendistlist.sh is free software; the author
>  # gives unlimited permission to copy and/or distribute it,
> @@ -16,7 +16,7 @@
>  EXTRA_DISTFILES="AUTHORS COPYING ChangeLog DISTLIST INSTALL NEWS README \
>       THANKS TODO Makefile.in aclocal.m4 autogen.sh config.guess \
>       config.h.in config.sub configure configure.ac gencmdlist.sh \
> -     gendistlist.sh genfslist.sh genkernsyms.sh genmk.rb \
> +     gendistlist.sh genfslist.sh genpartmaplist.sh genkernsyms.sh genmk.rb \
>       genmodsrc.sh gensymlist.sh install-sh mkinstalldirs stamp-h.in"
>  
>  DISTDIRS="boot commands conf disk font fs hello include io kern loader \
> diff -x configure -x config.h.in -x CVS -x '*~' -x '*.mk' -Nurp 
> ../grub2/genmk.rb ./genmk.rb
> --- ../grub2/genmk.rb 2008-02-01 16:45:16.000000000 +0100
> +++ ./genmk.rb        2008-03-18 21:12:40.000000000 +0100
> @@ -141,6 +141,7 @@ endif
>        fake_obj = File.basename(src).suffix('o')
>        command = 'cmd-' + obj.suffix('lst')
>        fs = 'fs-' + obj.suffix('lst')
> +      partmap = 'partmap-' + obj.suffix('lst')
>        dep = deps[i]
>        flag = if /\.c$/ =~ src then 'CFLAGS' else 'ASFLAGS' end
>        extra_flags = if /\.S$/ =~ src then '-DASM_FILE=1' else '' end
> @@ -150,9 +151,10 @@ endif
>       $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) 
> #{extra_flags} $(TARGET_#{flag}) $(#{prefix}_#{flag}) -MD -c -o $@ $<
>  -include #{dep}
>  
> -CLEANFILES += #{command} #{fs}
> +CLEANFILES += #{command} #{fs} #{partmap}
>  COMMANDFILES += #{command}
>  FSFILES += #{fs}
> +PARTMAPFILES += #{partmap}
>  
>  #{command}: #{src} $(#{src}_DEPENDENCIES) gencmdlist.sh
>       set -e; \
> @@ -164,6 +166,11 @@ FSFILES += #{fs}
>         $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) 
> $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
>         | sh $(srcdir)/genfslist.sh #{symbolic_name} > $@ || (rm -f $@; exit 
> 1)
>  
> +#{partmap}: #{src} $(#{src}_DEPENDENCIES) genpartmaplist.sh
> +     set -e; \
> +       $(TARGET_CC) -I#{dir} -I$(srcdir)/#{dir} $(TARGET_CPPFLAGS) 
> $(TARGET_#{flag}) $(#{prefix}_#{flag}) -E $< \
> +       | sh $(srcdir)/genpartmaplist.sh #{symbolic_name} > $@ || (rm -f $@; 
> exit 1)
> +
>  
>  "
>      end.join('')
> diff -x configure -x config.h.in -x CVS -x '*~' -x '*.mk' -Nurp 
> ../grub2/genpartmaplist.sh ./genpartmaplist.sh
> --- ../grub2/genpartmaplist.sh        1970-01-01 01:00:00.000000000 +0100
> +++ ./genpartmaplist.sh       2008-03-18 13:29:32.000000000 +0100
> @@ -0,0 +1,21 @@
> +#! /bin/sh
> +#
> +# Copyright (C) 2005, 2008  Free Software Foundation, Inc.
> +#
> +# This script is free software; the author
> +# gives unlimited permission to copy and/or distribute it,
> +# with or without modifications, as long as this notice is preserved.
> +#
> +# This program is distributed in the hope that it will be useful,
> +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
> +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
> +# PARTICULAR PURPOSE.
> +
> +# Read source code from stdin and detect partmap names.
> +
> +module=$1
> +
> +# For now, this emits only a module name, if the module registers a 
> partition map.
> +if grep -v "^#" | grep '^ *grub_partition_map_register' >/dev/null 2>&1; then
> +    echo $module
> +fi
> diff -x configure -x config.h.in -x CVS -x '*~' -x '*.mk' -Nurp 
> ../grub2/Makefile.in ./Makefile.in
> --- ../grub2/Makefile.in      2008-02-09 13:31:10.000000000 +0100
> +++ ./Makefile.in     2008-03-18 13:22:34.000000000 +0100
> @@ -123,7 +123,7 @@ include $(srcdir)/conf/$(target_cpu)-$(p
>  ### General targets.
>  
>  CLEANFILES += $(pkglib_DATA) $(pkgdata_DATA)
> -pkglib_DATA += moddep.lst command.lst fs.lst
> +pkglib_DATA += moddep.lst command.lst fs.lst partmap.lst
>  moddep.lst: $(DEFSYMFILES) $(UNDSYMFILES) genmoddep.awk
>       cat $(DEFSYMFILES) /dev/null \
>         | $(AWK) -f $(srcdir)/genmoddep.awk $(UNDSYMFILES) > $@ \
> @@ -135,6 +135,9 @@ command.lst: $(COMMANDFILES)
>  fs.lst: $(FSFILES)
>       cat $^ /dev/null | sort > $@
>  
> +partmap.lst: $(PARTMAPFILES)
> +     cat $^ /dev/null | sort > $@
> +
>  ifeq (, $(UNIFONT_HEX))
>  else
>  pkgdata_DATA += unicode.pff ascii.pff
> diff -x configure -x config.h.in -x CVS -x '*~' -x '*.mk' -Nurp 
> ../grub2/util/i386/pc/grub-mkrescue.in ./util/i386/pc/grub-mkrescue.in
> --- ../grub2/util/i386/pc/grub-mkrescue.in    2008-02-09 13:31:11.000000000 
> +0100
> +++ ./util/i386/pc/grub-mkrescue.in   2008-03-18 20:43:27.000000000 +0100
> @@ -109,6 +109,11 @@ cp ${input_dir}/*.mod \
>    ${input_dir}/command.lst ${input_dir}/moddep.lst ${input_dir}/fs.lst \
>    ${aux_dir}/boot/grub/
>  
> +modules="biosdisk `cat ${input_dir}/partmap.lst` ${modules}"
> +for i in ${modules} ; do
> +  echo "insmod $i"
> +done > ${aux_dir}/boot/grub/grub.cfg
> +
>  if test "x$overlay" = x ; then : ; else
>    cp -dpR ${overlay}/* ${aux_dir}/
>  fi
> @@ -121,7 +126,7 @@ if [ "x${image_type}" = "xfloppy" ] ; th
>  
>    # build core.img
>    core_img=`mktemp`
> -  ${grub_mkimage} -d ${input_dir}/ -m ${memdisk_img} -o ${core_img} memdisk 
> cpio biosdisk ${modules}
> +  ${grub_mkimage} -d ${input_dir}/ -m ${memdisk_img} -o ${core_img} memdisk 
> cpio
>    rm -f ${memdisk_img}
>  
>    # build floppy image
> @@ -130,7 +135,7 @@ if [ "x${image_type}" = "xfloppy" ] ; th
>  else
>    # build core.img
>    core_img=`mktemp`
> -  ${grub_mkimage} -d ${input_dir}/ -o ${core_img} biosdisk iso9660 ${modules}
> +  ${grub_mkimage} -d ${input_dir}/ -o ${core_img} biosdisk iso9660
>  
>    # build grub_eltorito image
>    cat ${input_dir}/cdboot.img ${core_img} > 
> ${aux_dir}/boot/grub/grub_eltorito

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-- 
Robert Millan

<GPLv2> I know my rights; I want my phone call!
<DRM> What use is a phone call… if you are unable to speak?
(as seen on /.)




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