diff options
Diffstat (limited to 'scripts/atomic/gen-atomic-fallback.sh')
| -rwxr-xr-x | scripts/atomic/gen-atomic-fallback.sh | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/scripts/atomic/gen-atomic-fallback.sh b/scripts/atomic/gen-atomic-fallback.sh index c0c8a85d7c81..f80d69cfeb1f 100755 --- a/scripts/atomic/gen-atomic-fallback.sh +++ b/scripts/atomic/gen-atomic-fallback.sh @@ -102,7 +102,7 @@ gen_proto_order_variant() fi # Allow ACQUIRE/RELEASE/RELAXED ops to be defined in terms of FULL ops - if [ ! -z "${order}" ]; then + if [ ! -z "${order}" ] && ! meta_is_implicitly_relaxed "${meta}"; then printf "#elif defined(arch_${basename})\n" printf "\t${retstmt}arch_${basename}(${args});\n" fi @@ -223,14 +223,15 @@ gen_xchg_fallbacks() gen_try_cmpxchg_fallback() { + local prefix="$1"; shift local cmpxchg="$1"; shift; - local order="$1"; shift; + local suffix="$1"; shift; cat <<EOF -#define raw_try_${cmpxchg}${order}(_ptr, _oldp, _new) \\ +#define raw_${prefix}try_${cmpxchg}${suffix}(_ptr, _oldp, _new) \\ ({ \\ typeof(*(_ptr)) *___op = (_oldp), ___o = *___op, ___r; \\ - ___r = raw_${cmpxchg}${order}((_ptr), ___o, (_new)); \\ + ___r = raw_${prefix}${cmpxchg}${suffix}((_ptr), ___o, (_new)); \\ if (unlikely(___r != ___o)) \\ *___op = ___r; \\ likely(___r == ___o); \\ @@ -259,11 +260,11 @@ gen_try_cmpxchg_order_fallback() fi printf "#else\n" - gen_try_cmpxchg_fallback "${cmpxchg}" "${order}" + gen_try_cmpxchg_fallback "" "${cmpxchg}" "${order}" printf "#endif\n\n" } -gen_try_cmpxchg_fallbacks() +gen_try_cmpxchg_order_fallbacks() { local cmpxchg="$1"; shift; @@ -272,15 +273,17 @@ gen_try_cmpxchg_fallbacks() done } -gen_cmpxchg_local_fallbacks() +gen_def_and_try_cmpxchg_fallback() { + local prefix="$1"; shift local cmpxchg="$1"; shift + local suffix="$1"; shift - printf "#define raw_${cmpxchg} arch_${cmpxchg}\n\n" - printf "#ifdef arch_try_${cmpxchg}\n" - printf "#define raw_try_${cmpxchg} arch_try_${cmpxchg}\n" + printf "#define raw_${prefix}${cmpxchg}${suffix} arch_${prefix}${cmpxchg}${suffix}\n\n" + printf "#ifdef arch_${prefix}try_${cmpxchg}${suffix}\n" + printf "#define raw_${prefix}try_${cmpxchg}${suffix} arch_${prefix}try_${cmpxchg}${suffix}\n" printf "#else\n" - gen_try_cmpxchg_fallback "${cmpxchg}" "" + gen_try_cmpxchg_fallback "${prefix}" "${cmpxchg}" "${suffix}" printf "#endif\n\n" } @@ -302,15 +305,15 @@ for xchg in "xchg" "cmpxchg" "cmpxchg64" "cmpxchg128"; do done for cmpxchg in "cmpxchg" "cmpxchg64" "cmpxchg128"; do - gen_try_cmpxchg_fallbacks "${cmpxchg}" + gen_try_cmpxchg_order_fallbacks "${cmpxchg}" done -for cmpxchg in "cmpxchg_local" "cmpxchg64_local" "cmpxchg128_local"; do - gen_cmpxchg_local_fallbacks "${cmpxchg}" "" +for cmpxchg in "cmpxchg" "cmpxchg64" "cmpxchg128"; do + gen_def_and_try_cmpxchg_fallback "" "${cmpxchg}" "_local" done -for cmpxchg in "sync_cmpxchg"; do - printf "#define raw_${cmpxchg} arch_${cmpxchg}\n\n" +for cmpxchg in "cmpxchg"; do + gen_def_and_try_cmpxchg_fallback "sync_" "${cmpxchg}" "" done grep '^[a-z]' "$1" | while read name meta args; do |