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Makefiles: Generate datapath ovs key fields macros
Generate datapath ovs key fields offset and size array macros as a pre-step for bit-wise comparing fields, with no functional change. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: 0-day Robot <robot@bytheb.org>
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Original file line number | Diff line number | Diff line change |
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#!/bin/bash | ||
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hfile=$1 | ||
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function generate_fields_macros { | ||
local struct_name=$1 | ||
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# line_start is the line number where the definition of the struct begin | ||
# line_end is the line number where the definition of the struct ends | ||
line_start=`grep -nw $struct_name $hfile | grep { | cut -d ":" -f1` | ||
num_lines=`tail -n +${line_start} $hfile | grep -n -m1 } | cut -d ":" -f1` | ||
line_end=$((line_start+num_lines-1)) | ||
STRUCT=`echo $struct_name | tr [a-z] [A-Z]` | ||
echo "#define ${STRUCT}_OFFSETOF_SIZEOF_ARR { \\" | ||
# for all the field lines, including the terminating }, remove ";" and | ||
# replace with an item of {offsetof, sizeof}. | ||
# 3 awk fields are for type struct <struct name> and field <field_name> | ||
# 2 awk fields are for type <type> and field <field_name> | ||
# else - terminating the array by item {0, 0} | ||
awk_cmd="'{" | ||
awk_cmd+=' if (NF == 3)' | ||
awk_cmd+=' print " {offsetof(struct '"${struct_name}"', "$3"), sizeof("$1,$2")}, \\";' | ||
awk_cmd+=' else if (NF == 2)' | ||
awk_cmd+=' print " {offsetof(struct '"${struct_name}"', "$2"), sizeof(" $1")}, \\";' | ||
awk_cmd+=' else' | ||
awk_cmd+=' print " {0, 0}}";' | ||
awk_cmd+="}'" | ||
awk -F ";" "NR>${line_start} && NR<=${line_end}"' {print $1}' $hfile | eval "awk $awk_cmd" | ||
echo | ||
echo | ||
} | ||
echo "/* Generated automatically from <include/odp-netlink.h> -- do not modify! */" | ||
echo "#ifndef ODP_NETLINK_MACROS_H" | ||
echo "#define ODP_NETLINK_MACROS_H" | ||
echo | ||
echo | ||
generate_fields_macros "ovs_key_ethernet" | ||
generate_fields_macros "ovs_key_ipv4" | ||
generate_fields_macros "ovs_key_ipv6" | ||
generate_fields_macros "ovs_key_tcp" | ||
generate_fields_macros "ovs_key_udp" | ||
generate_fields_macros "ovs_key_sctp" | ||
generate_fields_macros "ovs_key_icmp" | ||
generate_fields_macros "ovs_key_icmpv6" | ||
generate_fields_macros "ovs_key_arp" | ||
generate_fields_macros "ovs_key_nd" | ||
generate_fields_macros "ovs_key_nd_extensions" | ||
echo | ||
echo "#endif" |
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