^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) # Small script that refreshes the kernel feature support status in place.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) for F_FILE in Documentation/features/*/*/arch-support.txt; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) F=$(grep "^# Kconfig:" "$F_FILE" | cut -c26-)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) # Each feature F is identified by a pair (O, K), where 'O' can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) # be either the empty string (for 'nop') or "not" (the logical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) # negation operator '!'); other operators are not supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) O=""
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) K=$F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) if [[ "$F" == !* ]]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) O="not"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) K=$(echo $F | sed -e 's/^!//g')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) # F := (O, K) is 'valid' iff there is a Kconfig file (for some
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) # arch) which contains K.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) # Notice that this definition entails an 'asymmetry' between
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) # the case 'O = ""' and the case 'O = "not"'. E.g., F may be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) # _invalid_ if:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) # [case 'O = ""']
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) # 1) no arch provides support for F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) # 2) K does not exist (e.g., it was renamed/mis-typed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) # [case 'O = "not"']
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) # 3) all archs provide support for F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) # 4) as in (2).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) # The rationale for adopting this definition (and, thus, for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) # keeping the asymmetry) is:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) # We want to be able to 'detect' (2) (or (4)).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) # (1) and (3) may further warn the developers about the fact
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) # that K can be removed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) F_VALID="false"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) for ARCH_DIR in arch/*/; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) K_FILES=$(find $ARCH_DIR -name "Kconfig*")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) K_GREP=$(grep "$K" $K_FILES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) if [ ! -z "$K_GREP" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) F_VALID="true"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) break
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) if [ "$F_VALID" = "false" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) printf "WARNING: '%s' is not a valid Kconfig\n" "$F"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) T_FILE="$F_FILE.tmp"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) grep "^#" $F_FILE > $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) echo " -----------------------" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) echo " | arch |status|" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) echo " -----------------------" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) for ARCH_DIR in arch/*/; do
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) ARCH=$(echo $ARCH_DIR | sed -e 's/arch//g' | sed -e 's/\///g')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) K_FILES=$(find $ARCH_DIR -name "Kconfig*")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) K_GREP=$(grep "$K" $K_FILES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) # Arch support status values for (O, K) are updated according
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) # to the following rules.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) # - ("", K) is 'supported by a given arch', if there is a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) # Kconfig file for that arch which contains K;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) # - ("not", K) is 'supported by a given arch', if there is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) # no Kconfig file for that arch which contains K;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) # - otherwise: preserve the previous status value (if any),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) # default to 'not yet supported'.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) # Notice that, according these rules, invalid features may be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) # updated/modified.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if [ "$O" = "" ] && [ ! -z "$K_GREP" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) printf " |%12s: | ok |\n" "$ARCH" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) elif [ "$O" = "not" ] && [ -z "$K_GREP" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) printf " |%12s: | ok |\n" "$ARCH" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) S=$(grep -v "^#" "$F_FILE" | grep " $ARCH:")
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) if [ ! -z "$S" ]; then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) echo "$S" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) printf " |%12s: | TODO |\n" "$ARCH" \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) fi
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) echo " -----------------------" >> $T_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) mv $T_FILE $F_FILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) done
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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