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accel/tcg: Validate placement of CPUNegativeOffsetState 

Verify that the distance between CPUNegativeOffsetState and
CPUArchState is no greater than any alignment requirements.

Reviewed-by: Anton Johansson <anjo@rev.ng>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-09-12 17:18:37 -07:00
parent f669c99241
commit 5d30bdcb1b
1 changed files with 6 additions and 0 deletions
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6
include/exec/cpu-all.h
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@ -457,6 +457,12 @@ static inline CPUState *env_cpu(CPUArchState *env)
return &env_archcpu(env)->parent_obj; return &env_archcpu(env)->parent_obj;
} }
/*
* Validate placement of CPUNegativeOffsetState.
*/
QEMU_BUILD_BUG_ON(offsetof(ArchCPU, env) - offsetof(ArchCPU, neg) >=
sizeof(CPUNegativeOffsetState) + __alignof(CPUArchState));
/** /**
* env_neg(env) * env_neg(env)
* @env: The architecture environment * @env: The architecture environment