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| author | Christian Schoenebeck | 2021-10-01 16:27:13 +0200 |
|---|---|---|
| committer | Christian Schoenebeck | 2021-10-27 14:45:22 +0200 |
| commit | c0451f0bc4210d262268ff51c053a9277f20f862 (patch) | |
| tree | 1ed6c79d6c55ba850baf191994fc68e08c08e2eb /fsdev | |
| parent | 9pfs: introduce P9Array (diff) | |
| download | qemu-c0451f0bc4210d262268ff51c053a9277f20f862.tar.gz qemu-c0451f0bc4210d262268ff51c053a9277f20f862.tar.xz qemu-c0451f0bc4210d262268ff51c053a9277f20f862.zip | |
fsdev/p9array.h: check scalar type in P9ARRAY_NEW()
Make sure at compile time that the scalar type of the array
requested to be created via P9ARRAY_NEW() matches the scalar
type of the passed auto reference variable (unique pointer).
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <c1965e2a096835dc9e1d4d659dfb15d96755cbe0.1633097129.git.qemu_oss@crudebyte.com>
Diffstat (limited to 'fsdev')
| -rw-r--r-- | fsdev/p9array.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fsdev/p9array.h b/fsdev/p9array.h index fff946a3d7..6aa25327ca 100644 --- a/fsdev/p9array.h +++ b/fsdev/p9array.h @@ -27,6 +27,8 @@ #ifndef QEMU_P9ARRAY_H #define QEMU_P9ARRAY_H +#include "qemu/compiler.h" + /** * P9Array provides a mechanism to access arrays in common C-style (e.g. by * square bracket [] operator) in conjunction with reference variables that @@ -149,6 +151,10 @@ * @param len - amount of array elements to be allocated immediately */ #define P9ARRAY_NEW(scalar_type, auto_var, len) \ + QEMU_BUILD_BUG_MSG( \ + !__builtin_types_compatible_p(scalar_type, typeof(*auto_var)), \ + "P9Array scalar type mismatch" \ + ); \ p9array_new_##scalar_type((&auto_var), len) #endif /* QEMU_P9ARRAY_H */ |