Documentation/features: Add script that refreshes the arch support status files in place
Provides the script: Documentation/features/scripts/features-refresh.sh which operates on the arch-support.txt files and refreshes them in place. This way [1], "[...] we soft- decouple the refreshing of the entries from the introduction of the features, while still making it all easy to keep sync and to extend." [1] http://lkml.kernel.org/r/20180328122211.GA25420@andrea Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrea Parri <andrea.parri@amarulasolutions.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Родитель
f6dbf65b65
Коммит
be99f610a1
|
@ -0,0 +1,98 @@
|
|||
#
|
||||
# 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
|
Загрузка…
Ссылка в новой задаче