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Fix dhooks x64 crash in UpdateRegisterArgumentSizes() for #2282 #2290

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@rtldg rtldg commented Mar 2, 2025

From #2282

If you construct a thiscall DynamicDetour and don't add any parameters then ConstructCallingConvention() will prepend the this arg/register to vecArgTypes and UpdateRegisterArgumentSizes() will try to index through (an empty) setup->params for the size of vecArgTypes.

Not a pretty fix but it should work...

Also removed the ifdef WIN32 wrapper around the origin since this will also affect linux64.

@rtldg rtldg mentioned this pull request Mar 2, 2025
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