1#!/bin/sh
 2# SPDX-License-Identifier: GPL-2.0
 3#
 4# Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h
 5#
 6
 7set -e
 8
 9IN=$1
10OUT=$2
11
12dump_array()
13{
14	ARRAY=$1
15	SIZE=$2
16	PFX=$3
17	POSTFIX=$4
18
19	PFX_SZ=$(echo $PFX | wc -c)
20	TABS="$(printf '\t\t\t\t\t')"
21
22	echo "const char * const $ARRAY[$SIZE] = {"
23
24	# Iterate through any input lines starting with #define $PFX
25	sed -n -e 's/\t/ /g' -e "s/^ *# *define *$PFX//p" $IN |
26	while read i
27	do
28		# Name is everything up to the first whitespace
29		NAME="$(echo "$i" | sed 's/ .*//')"
30
31		# If the /* comment */ starts with a quote string, grab that.
32		VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')"
33		[ -z "$VALUE" ] && VALUE="\"$NAME\""
34		[ "$VALUE" = '""' ] && continue
35
36		# Name is uppercase, VALUE is all lowercase
37		VALUE="$(echo "$VALUE" | tr A-Z a-z)"
38
39        if [ -n "$POSTFIX" ]; then
40            T=$(( $PFX_SZ + $(echo $POSTFIX | wc -c) + 2 ))
41	        TABS="$(printf '\t\t\t\t\t\t')"
42		    TABCOUNT=$(( ( 6*8 - ($T + 1) - $(echo "$NAME" | wc -c) ) / 8 ))
43		    printf "\t[%s - %s]%.*s = %s,\n" "$PFX$NAME" "$POSTFIX" "$TABCOUNT" "$TABS" "$VALUE"
44        else
45		    TABCOUNT=$(( ( 5*8 - ($PFX_SZ + 1) - $(echo "$NAME" | wc -c) ) / 8 ))
46            printf "\t[%s]%.*s = %s,\n" "$PFX$NAME" "$TABCOUNT" "$TABS" "$VALUE"
47        fi
48	done
49	echo "};"
50}
51
52trap 'rm "$OUT"' EXIT
53
54(
55	echo "#ifndef _ASM_X86_CPUFEATURES_H"
56	echo "#include <asm/cpufeatures.h>"
57	echo "#endif"
58	echo ""
59
60	dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" ""
61	echo ""
62
63	dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32"
64
65) > $OUT
66
67trap - EXIT

 1#!/bin/sh
 
 2#
 3# Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h
 4#
 
 
 5
 6IN=$1
 7OUT=$2
 8
 9dump_array()
10{
11	ARRAY=$1
12	SIZE=$2
13	PFX=$3
14	POSTFIX=$4
15
16	PFX_SZ=$(echo $PFX | wc -c)
17	TABS="$(printf '\t\t\t\t\t')"
18
19	echo "const char * const $ARRAY[$SIZE] = {"
20
21	# Iterate through any input lines starting with #define $PFX
22	sed -n -e 's/\t/ /g' -e "s/^ *# *define *$PFX//p" $IN |
23	while read i
24	do
25		# Name is everything up to the first whitespace
26		NAME="$(echo "$i" | sed 's/ .*//')"
27
28		# If the /* comment */ starts with a quote string, grab that.
29		VALUE="$(echo "$i" | sed -n 's@.*/\* *\("[^"]*"\).*\*/@\1@p')"
30		[ -z "$VALUE" ] && VALUE="\"$NAME\""
31		[ "$VALUE" = '""' ] && continue
32
33		# Name is uppercase, VALUE is all lowercase
34		VALUE="$(echo "$VALUE" | tr A-Z a-z)"
35
36        if [ -n "$POSTFIX" ]; then
37            T=$(( $PFX_SZ + $(echo $POSTFIX | wc -c) + 2 ))
38	        TABS="$(printf '\t\t\t\t\t\t')"
39		    TABCOUNT=$(( ( 6*8 - ($T + 1) - $(echo "$NAME" | wc -c) ) / 8 ))
40		    printf "\t[%s - %s]%.*s = %s,\n" "$PFX$NAME" "$POSTFIX" "$TABCOUNT" "$TABS" "$VALUE"
41        else
42		    TABCOUNT=$(( ( 5*8 - ($PFX_SZ + 1) - $(echo "$NAME" | wc -c) ) / 8 ))
43            printf "\t[%s]%.*s = %s,\n" "$PFX$NAME" "$TABCOUNT" "$TABS" "$VALUE"
44        fi
45	done
46	echo "};"
47}
48
49trap 'rm "$OUT"' EXIT
50
51(
52	echo "#ifndef _ASM_X86_CPUFEATURES_H"
53	echo "#include <asm/cpufeatures.h>"
54	echo "#endif"
55	echo ""
56
57	dump_array "x86_cap_flags" "NCAPINTS*32" "X86_FEATURE_" ""
58	echo ""
59
60	dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32"
61
62) > $OUT
63
64trap - EXIT