99 lines
2.8 KiB
Bash
Executable File
99 lines
2.8 KiB
Bash
Executable File
#
|
|
# Small script that refreshes the kernel feature support status in place.
|
|
#
|
|
|
|
for F_FILE in Documentation/features/*/*/arch-support.txt; do
|
|
F=$(grep "^# Kconfig:" "$F_FILE" | cut -c26-)
|
|
|
|
#
|
|
# Each feature F is identified by a pair (O, K), where 'O' can
|
|
# be either the empty string (for 'nop') or "not" (the logical
|
|
# negation operator '!'); other operators are not supported.
|
|
#
|
|
O=""
|
|
K=$F
|
|
if [[ "$F" == !* ]]; then
|
|
O="not"
|
|
K=$(echo $F | sed -e 's/^!//g')
|
|
fi
|
|
|
|
#
|
|
# F := (O, K) is 'valid' iff there is a Kconfig file (for some
|
|
# arch) which contains K.
|
|
#
|
|
# Notice that this definition entails an 'asymmetry' between
|
|
# the case 'O = ""' and the case 'O = "not"'. E.g., F may be
|
|
# _invalid_ if:
|
|
#
|
|
# [case 'O = ""']
|
|
# 1) no arch provides support for F,
|
|
# 2) K does not exist (e.g., it was renamed/mis-typed);
|
|
#
|
|
# [case 'O = "not"']
|
|
# 3) all archs provide support for F,
|
|
# 4) as in (2).
|
|
#
|
|
# The rationale for adopting this definition (and, thus, for
|
|
# keeping the asymmetry) is:
|
|
#
|
|
# We want to be able to 'detect' (2) (or (4)).
|
|
#
|
|
# (1) and (3) may further warn the developers about the fact
|
|
# that K can be removed.
|
|
#
|
|
F_VALID="false"
|
|
for ARCH_DIR in arch/*/; do
|
|
K_FILES=$(find $ARCH_DIR -name "Kconfig*")
|
|
K_GREP=$(grep "$K" $K_FILES)
|
|
if [ ! -z "$K_GREP" ]; then
|
|
F_VALID="true"
|
|
break
|
|
fi
|
|
done
|
|
if [ "$F_VALID" = "false" ]; then
|
|
printf "WARNING: '%s' is not a valid Kconfig\n" "$F"
|
|
fi
|
|
|
|
T_FILE="$F_FILE.tmp"
|
|
grep "^#" $F_FILE > $T_FILE
|
|
echo " -----------------------" >> $T_FILE
|
|
echo " | arch |status|" >> $T_FILE
|
|
echo " -----------------------" >> $T_FILE
|
|
for ARCH_DIR in arch/*/; do
|
|
ARCH=$(echo $ARCH_DIR | sed -e 's/arch//g' | sed -e 's/\///g')
|
|
K_FILES=$(find $ARCH_DIR -name "Kconfig*")
|
|
K_GREP=$(grep "$K" $K_FILES)
|
|
#
|
|
# Arch support status values for (O, K) are updated according
|
|
# to the following rules.
|
|
#
|
|
# - ("", K) is 'supported by a given arch', if there is a
|
|
# Kconfig file for that arch which contains K;
|
|
#
|
|
# - ("not", K) is 'supported by a given arch', if there is
|
|
# no Kconfig file for that arch which contains K;
|
|
#
|
|
# - otherwise: preserve the previous status value (if any),
|
|
# default to 'not yet supported'.
|
|
#
|
|
# Notice that, according these rules, invalid features may be
|
|
# updated/modified.
|
|
#
|
|
if [ "$O" = "" ] && [ ! -z "$K_GREP" ]; then
|
|
printf " |%12s: | ok |\n" "$ARCH" >> $T_FILE
|
|
elif [ "$O" = "not" ] && [ -z "$K_GREP" ]; then
|
|
printf " |%12s: | ok |\n" "$ARCH" >> $T_FILE
|
|
else
|
|
S=$(grep -v "^#" "$F_FILE" | grep " $ARCH:")
|
|
if [ ! -z "$S" ]; then
|
|
echo "$S" >> $T_FILE
|
|
else
|
|
printf " |%12s: | TODO |\n" "$ARCH" \
|
|
>> $T_FILE
|
|
fi
|
|
fi
|
|
done
|
|
echo " -----------------------" >> $T_FILE
|
|
mv $T_FILE $F_FILE
|
|
done
|