AcoSail/kernel_optimize_test
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Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

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Pull kconfig bits from Michal Marek:
 "There is one fix for make oldconfig by Arnaud and updates to the
  merge_config.sh tool."

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  merge_config.sh: Add option to display redundant configs
  merge_config.sh: Set execute bit
  merge_config.sh: Use the first file as the initial config
  kconfig: fix new choices being skipped upon config update
This commit is contained in:
Linus Torvalds 2012-03-30 18:13:17 -07:00
commit 2b17b4382c
3 changed files with 28 additions and 22 deletions
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26
scripts/kconfig/confdata.c
View File

@ -344,10 +344,8 @@ int conf_read_simple(const char *name, int def)
int conf_read(const char *name)
{
struct symbol *sym, *choice_sym;
struct property *prop;
struct expr *e;
int i, flags;
struct symbol *sym;
int i;
sym_set_change_count(0);
@ -357,7 +355,7 @@ int conf_read(const char *name)
for_all_symbols(i, sym) {
sym_calc_value(sym);
if (sym_is_choice(sym) || (sym->flags & SYMBOL_AUTO))
goto sym_ok;
continue;
if (sym_has_value(sym) && (sym->flags & SYMBOL_WRITE)) {
/* check that calculated value agrees with saved value */
switch (sym->type) {
@ -366,30 +364,18 @@ int conf_read(const char *name)
if (sym->def[S_DEF_USER].tri != sym_get_tristate_value(sym))
break;
if (!sym_is_choice(sym))
goto sym_ok;
continue;
/* fall through */
default:
if (!strcmp(sym->curr.val, sym->def[S_DEF_USER].val))
goto sym_ok;
continue;
break;
}
} else if (!sym_has_value(sym) && !(sym->flags & SYMBOL_WRITE))
/* no previous value and not saved */
goto sym_ok;
continue;
conf_unsaved++;
/* maybe print value in verbose mode... */
sym_ok:
if (!sym_is_choice(sym))
continue;
/* The choice symbol only has a set value (and thus is not new)
* if all its visible childs have values.
*/
prop = sym_get_choice_prop(sym);
flags = sym->flags;
expr_list_for_each_sym(prop->expr, e, choice_sym)
if (choice_sym->visible != no)
flags &= choice_sym->flags;
sym->flags &= flags | ~SYMBOL_DEF_USER;
}
for_all_symbols(i, sym) {

15
scripts/kconfig/merge_config.sh Normal file → Executable file
View File

@ -31,10 +31,12 @@ usage() {
echo " -h display this help text"
echo " -m only merge the fragments, do not execute the make command"
echo " -n use allnoconfig instead of alldefconfig"
echo " -r list redundant entries when merging fragments"
}
MAKE=true
ALLTARGET=alldefconfig
WARNREDUN=false
while true; do
case $1 in
@ -52,18 +54,27 @@ while true; do
usage
exit
;;
"-r")
WARNREDUN=true
shift
continue
;;
*)
break
;;
esac
done
INITFILE=$1
shift;
MERGE_LIST=$*
SED_CONFIG_EXP="s/^\(# \)\{0,1\}\(CONFIG_[a-zA-Z0-9_]*\)[= ].*/\2/p"
TMP_FILE=$(mktemp ./.tmp.config.XXXXXXXXXX)
echo "Using $INITFILE as base"
cat $INITFILE > $TMP_FILE
# Merge files, printing warnings on overrided values
for MERGE_FILE in $MERGE_LIST ; do
echo "Merging $MERGE_FILE"
@ -79,6 +90,8 @@ for MERGE_FILE in $MERGE_LIST ; do
echo Previous value: $PREV_VAL
echo New value: $NEW_VAL
echo
elif [ "$WARNREDUN" = "true" ]; then
echo Value of $CFG is redundant by fragment $MERGE_FILE:
fi
sed -i "/$CFG[ =]/d" $TMP_FILE
fi

9
scripts/kconfig/symbol.c
View File

@ -262,11 +262,18 @@ static struct symbol *sym_calc_choice(struct symbol *sym)
struct symbol *def_sym;
struct property *prop;
struct expr *e;
int flags;
/* first calculate all choice values' visibilities */
flags = sym->flags;
prop = sym_get_choice_prop(sym);
expr_list_for_each_sym(prop->expr, e, def_sym)
expr_list_for_each_sym(prop->expr, e, def_sym) {
sym_calc_visibility(def_sym);
if (def_sym->visible != no)
flags &= def_sym->flags;
}
sym->flags &= flags | ~SYMBOL_DEF_USER;
/* is the user choice visible? */
def_sym = sym->def[S_DEF_USER].val;