mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 10:49:33 +00:00
![Anders Roxell](/assets/img/avatar_default.png)
Some distibutions and build systems doesn't include 'fold' from coreutils default. .../scripts/atomic/atomic-tbl.sh: line 183: fold: command not found Rework to use 'grep' instead of 'fold' to use a dependency that is already used a lot in the kernel. [Mark: rework commit message] Suggested-by: Will Deacon <will.deacon@arm.com> Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: akpm@linux-foundation.org Cc: boqun.feng@gmail.com Cc: linux-kernel@vger.kernel.rg Signed-off-by: Ingo Molnar <mingo@kernel.org>
186 lines
3.3 KiB
Bash
Executable file
186 lines
3.3 KiB
Bash
Executable file
#!/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
|
|
}
|