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winnt.h: add compile-time CONTEXT size assertions for fallback path

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The static assertions in tccrun.c only validate CONTEXT when building
native Windows ARM64 (_WIN64 && __aarch64__). Cross-compilation builds
use the fallback definition without validation, so layout errors would
be silent.

Add matching C_ASSERT() checks after the ARM64_NT_CONTEXT definition
to catch struct layout mismatches during cross-compilation.
This commit is contained in:
Benjamin Oldenburg 2026-03-20 19:05:44 +07:00
parent 680c2d40e8
commit 2203a4407a
1 changed files with 14 additions and 0 deletions
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14
win32/include/winapi/winnt.h
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@ -1520,6 +1520,20 @@ typedef DWORD LCID;
DWORD Wcr[ARM64_MAX_WATCHPOINTS];
DWORD64 Wvr[ARM64_MAX_WATCHPOINTS];
} ARM64_NT_CONTEXT,*PARM64_NT_CONTEXT;
C_ASSERT(sizeof(ARM64_NT_CONTEXT) == 0x390);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, ContextFlags) == 0x000);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, X) == 0x008);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Fp) == 0x0f0);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Lr) == 0x0f8);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Sp) == 0x100);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Pc) == 0x108);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, V) == 0x110);
C_ASSERT(sizeof(((ARM64_NT_CONTEXT *)0)->V[0]) == 16);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Fpcr) == 0x310);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Fpsr) == 0x314);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Bvr) == 0x338);
C_ASSERT(offsetof(ARM64_NT_CONTEXT, Wvr) == 0x380);
#endif
typedef ARM64_NT_CONTEXT CONTEXT,*PCONTEXT;