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# 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
 9OUT=$1
 
10
11dump_array()
12{
13	ARRAY=$1
14	SIZE=$2
15	PFX=$3
16	POSTFIX=$4
17	IN=$5
18
19	PFX_SZ=$(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_" "" $2
61	echo ""
62
63	dump_array "x86_bug_flags" "NBUGINTS*32" "X86_BUG_" "NCAPINTS*32" $2
64	echo ""
65
66	echo "#ifdef CONFIG_X86_VMX_FEATURE_NAMES"
67	echo "#ifndef _ASM_X86_VMXFEATURES_H"
68	echo "#include <asm/vmxfeatures.h>"
69	echo "#endif"
70	dump_array "x86_vmx_flags" "NVMXINTS*32" "VMX_FEATURE_" "" $3
71	echo "#endif /* CONFIG_X86_VMX_FEATURE_NAMES */"
72) > $OUT
73
74trap - EXIT