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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 | #!/bin/sh # SPDX-License-Identifier: GPL-2.0 # helpers for dealing with atomics.tbl #meta_in(meta, match) meta_in() { case "$1" in [$2]) return 0;; esac return 1 } #meta_has_ret(meta) meta_has_ret() { meta_in "$1" "bBiIfFlR" } #meta_has_acquire(meta) meta_has_acquire() { meta_in "$1" "BFIlR" } #meta_has_release(meta) meta_has_release() { meta_in "$1" "BFIRs" } #meta_has_relaxed(meta) meta_has_relaxed() { meta_in "$1" "BFIR" } #find_fallback_template(pfx, name, sfx, order) find_fallback_template() { local pfx="$1"; shift local name="$1"; shift local sfx="$1"; shift local order="$1"; shift local base="" local file="" # We may have fallbacks for a specific case (e.g. read_acquire()), or # an entire class, e.g. *inc*(). # # Start at the most specific, and fall back to the most general. Once # we find a specific fallback, don't bother looking for more. for base in "${pfx}${name}${sfx}${order}" "${name}"; do file="${ATOMICDIR}/fallbacks/${base}" if [ -f "${file}" ]; then printf "${file}" break fi done } #gen_ret_type(meta, int) gen_ret_type() { local meta="$1"; shift local int="$1"; shift case "${meta}" in [sv]) printf "void";; [bB]) printf "bool";; [aiIfFlR]) printf "${int}";; esac } #gen_ret_stmt(meta) gen_ret_stmt() { if meta_has_ret "${meta}"; then printf "return "; fi } # gen_param_name(arg) gen_param_name() { # strip off the leading 'c' for 'cv' local name="${1#c}" printf "${name#*:}" } # gen_param_type(arg, int, atomic) gen_param_type() { local type="${1%%:*}"; shift local int="$1"; shift local atomic="$1"; shift case "${type}" in i) type="${int} ";; p) type="${int} *";; v) type="${atomic}_t *";; cv) type="const ${atomic}_t *";; esac printf "${type}" } #gen_param(arg, int, atomic) gen_param() { local arg="$1"; shift local int="$1"; shift local atomic="$1"; shift local name="$(gen_param_name "${arg}")" local type="$(gen_param_type "${arg}" "${int}" "${atomic}")" printf "${type}${name}" } #gen_params(int, atomic, arg...) gen_params() { local int="$1"; shift local atomic="$1"; shift while [ "$#" -gt 0 ]; do gen_param "$1" "${int}" "${atomic}" [ "$#" -gt 1 ] && printf ", " shift; done } #gen_args(arg...) gen_args() { while [ "$#" -gt 0 ]; do printf "$(gen_param_name "$1")" [ "$#" -gt 1 ] && printf ", " shift; done } #gen_proto_order_variants(meta, pfx, name, sfx, ...) gen_proto_order_variants() { local meta="$1"; shift local pfx="$1"; shift local name="$1"; shift local sfx="$1"; shift gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "" "$@" if meta_has_acquire "${meta}"; then gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "_acquire" "$@" fi if meta_has_release "${meta}"; then gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "_release" "$@" fi if meta_has_relaxed "${meta}"; then gen_proto_order_variant "${meta}" "${pfx}" "${name}" "${sfx}" "_relaxed" "$@" fi } #gen_proto_variants(meta, name, ...) gen_proto_variants() { local meta="$1"; shift local name="$1"; shift local pfx="" local sfx="" meta_in "${meta}" "fF" && pfx="fetch_" meta_in "${meta}" "R" && sfx="_return" gen_proto_order_variants "${meta}" "${pfx}" "${name}" "${sfx}" "$@" } #gen_proto(meta, ...) gen_proto() { local meta="$1"; shift for m in $(echo "${meta}" | grep -o .); do gen_proto_variants "${m}" "$@" done } |