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| author | Kees Cook <kees@outflux.net> | 2022-11-18 09:48:08 -0800 |
|---|---|---|
| committer | Kees Cook <kees@outflux.net> | 2022-11-18 09:50:48 -0800 |
| commit | 7b5a01c90b240d126efc86f9f99100db918d452e (patch) | |
| tree | 28ade50d26e76b9c45b7432444109792440387b9 | |
| parent | d9a0d78fb737445fd69ecf752ea219eda86ce6b9 (diff) | |
| download | acpica-7b5a01c90b240d126efc86f9f99100db918d452e.tar.gz | |
Introduce ACPI_FLEX_ARRAY
Add helper to work around the pointless C99 requirement that flex array
members not be allowed in unions (nor alone in structs), which is not
actually a real-world problem.
| -rw-r--r-- | source/include/platform/acenv.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/source/include/platform/acenv.h b/source/include/platform/acenv.h index 674c4c7d0..1cae95fd6 100644 --- a/source/include/platform/acenv.h +++ b/source/include/platform/acenv.h @@ -419,6 +419,17 @@ #endif /* + * Flexible array members are not allowed to be part of a union under + * C99, but this is not for any technical reason. Work around the + * limitation. + */ +#define ACPI_FLEX_ARRAY(TYPE, NAME) \ + struct { \ + struct { } __Empty_ ## NAME; \ + TYPE NAME[]; \ + } + +/* * Configurable calling conventions: * * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads) |