New patch to review for coreboot: 81d14b7 Auto-generate directory layouts within Kconfig files

[Kyösti Mälkki]

Kyösti Mälkki ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/608

-gerrit

commit 81d14b7fe2ed4c7d0557c2dbd58618509f44f102
Author: Kyösti Mälkki 
Date:   Mon Feb 6 11:49:52 2012 +0200

Auto-generate directory layouts within Kconfig files

Goal of this patch is to remove some redundancy in the way compile
    directories are defined between Kconfig files and the devicetree.cb
    file.

The script util/config-rules/autogen-kconfig.sh examines and operates
    recursively on selected subdirectories of src/ and creates temporary
    files under build/.

For mainboard vendor and board directories the necessary choice
    entries are created with texts extracted from Kconfig files
    placed under the child directories.

For results see:
      build/mainboard/Kconfig.autogen
      build/mainboard/vendor/Kconfig.autogen

For the mainboard/vendor/board directory, devicetree.cb is parsed to
    generate select directives to include sources for all chip components.
    Few select directives will need to be renamed if this is taken into
    real use.

For results see:
      build/mainboard/vendor/board/Kconfig.autogen

Change-Id: Iaeededc70c771d478883d5f8f9a438ddfccc1df8
    Signed-off-by: Kyösti Mälkki 
---
 util/config-rules/autogen-kconfig.sh |  159 ++++++++++++++++++++++++++++++++++
 util/config-rules/extract_choice     |   15 +++
 2 files changed, 174 insertions(+), 0 deletions(-)

diff --git a/util/config-rules/autogen-kconfig.sh b/util/config-rules/autogen-kconfig.sh
new file mode 100755
index 0000000..a0068f8
--- /dev/null
+++ b/util/config-rules/autogen-kconfig.sh
@@ -0,0 +1,159 @@
+#! /bin/sh
+#
+# Auto-generates Kconfig sections for coreboot directory layout
+#
+# For mainboard vendor and board directories the necessary choice
+# entries are created with texts extracted from Kconfig files
+# placed under the child directories.
+#
+# For the mainboard/vendor/board directory, devicetree.cb is parsed to
+# generate select directives to include sources for all chip components. 
+
+sedpath=`dirname $0`
+choice_field=$sedpath/extract_choice
+
+autogen_sub()
+{
+  kconfig_in=$1/$2/Kconfig
+
+  if test -s $kconfig_in ; then
+    echo 'source "'${kconfig_in}'"' >> $sub_source
+  fi
+
+  if test "$spath" = "mainboard" -o "$spath" = "mainboard_vendor" ; then
+    sed -f $choice_field $kconfig_in >> $sub_choice
+  fi
+}
+
+autogen_cfg()
+{
+#  bootblock generation triggered from Makefile
+#  bcfg="bootblock_autogen.h"
+#  build/util/sconfig/sconfig $2/$3 $1 -b $bcfg
+
+  kcfg="Kconfig.sdep"
+  build/util/sconfig/sconfig $2/$3 $1 -k $kcfg
+  cat $1/$kcfg >> $this_sconfig
+  rm -f $1/$kcfg
+
+}
+
+
+output_sub_choice()
+{
+  if test ! -s $sub_choice ; then return ; fi
+
+  if test "$spath" = "mainboard" ; then
+	echo '\nchoice\n\tprompt "Mainboard vendor"\n\tdefault VENDOR_EMULATION\n' >> $Kconfig_out
+        cat $sub_choice >> $Kconfig_out
+	echo 'endchoice\n' >> $Kconfig_out
+  elif test "$spath" = "mainboard_vendor" ; then
+	echo 'choice\n\tprompt "Mainboard model"\n' >> $Kconfig_out
+        cat $sub_choice >> $Kconfig_out
+	echo 'endchoice\n' >> $Kconfig_out
+  else
+        cat $sub_choice >> $Kconfig_out
+	echo >> $Kconfig_out
+  fi
+}
+
+output_sub_source()
+{
+  if test ! -s $sub_source ; then return ; fi
+
+  cat $sub_source >> $Kconfig_out
+  echo >> $Kconfig_out
+}
+
+output_this_sconfig()
+{
+  if test ! -s $this_sconfig ; then return ; fi
+
+  cat $this_sconfig >> $Kconfig_out
+  echo >> $Kconfig_out
+}
+
+
+# splits $root to $spath/$vendor/$part
+# sets $subirs to list of $root subdirectories
+split_parent_directory()
+{
+  sdir=$(echo $parent | tr "/" " ")
+  lvl=-1
+  spath=none
+  
+  for i in $sdir ; do
+    if test $lvl -eq -1 -a $i = src ; then
+       lvl=0
+       subdirs="cpu mainboard northbridge southbridge superio"
+    elif test $lvl -eq 0 ; then
+       spath=${i}
+       lvl=1
+    elif test $lvl -eq 1 ; then
+       spath=${spath}_vendor
+       vendor=${i}
+       lvl=2
+    else
+       spath=${spath}_part
+       part=${i}
+    fi
+  done
+  if test $lvl -gt 0 ; then
+    subdirs=`find $parent -mindepth 1 -maxdepth 1 -type d -printf "%f\n" | sort`
+  fi
+}
+
+output_parent()
+{
+  Kconfig_out=$objd/Kconfig.autogen
+  sub_source=`mktemp -p $objd`
+  sub_choice=`mktemp -p $objd`
+  this_sconfig=`mktemp -p $objd`
+
+  # sets spath, vendor, part, subdirs
+  split_parent_directory
+
+  # generate sub-directory includes
+  for subd in $subdirs ; do
+    echo $parent/$subd >> nextdirs.tmp
+    autogen_sub $parent $subd
+  done
+  
+  # generate mainboard devicetree.cb configs
+  if test "$spath" = "mainboard_vendor_part" ; then
+    autogen_cfg $objd $vendor $part
+  fi
+
+  if test -s $sub_source -o -s $sub_choice -o -s $this_sconfig ; then 
+    echo '## begin Kconfig.autogen\n' > $Kconfig_out
+    output_this_sconfig
+    output_sub_choice
+    output_sub_source
+    echo '## end Kconfig.autogen' >> $Kconfig_out
+  fi
+  rm -f $sub_source $sub_choice $this_sconfig
+}
+
+# main
+
+find ./build -name Kconfig.autogen -delete
+find ./build -name bootblock_autogen.h -delete
+
+roots=src
+while test -n "$roots" ; do
+  rm -f nextdirs.tmp
+
+  for parent in $roots ; do
+    objd=`echo $parent | sed -e "s/^src/build/g"`
+    mkdir -p $objd
+    output_parent
+  done
+
+  if test -s nextdirs.tmp ; then
+    roots=`cat nextdirs.tmp`
+  else
+    roots=
+  fi
+  
+done
+
diff --git a/util/config-rules/extract_choice b/util/config-rules/extract_choice
new file mode 100644
index 0000000..7582778
--- /dev/null
+++ b/util/config-rules/extract_choice
@@ -0,0 +1,15 @@
+/if VENDOR_/ b choice
+/if BOARD_/ b choice
+/config MAINBOARD_VENDOR/,+3b name
+/config MAINBOARD_PART_NUMBER/,+3b name
+/^/ D
+: choice
+{
+s/if/config/ p
+/^/ D
+}
+: name
+{
+s/default/bool/ p
+/^/ D
+}