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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /scripts/atomic/atomic-tbl.sh | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rwxr-xr-x | scripts/atomic/atomic-tbl.sh | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/scripts/atomic/atomic-tbl.sh b/scripts/atomic/atomic-tbl.sh new file mode 100755 index 000000000..81d5c3203 --- /dev/null +++ b/scripts/atomic/atomic-tbl.sh @@ -0,0 +1,186 @@ +#!/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 +} |