4.6.3 IL2CPP Xcode build errors

Hello, I just upgraded to 4.6.3 (from 4.6.2) and when I build my project in Xcode I'm greeted with about 20 of the same error:

"error: cast from pointer to smaller type 'il2cpp_array_size_t' (aka 'int') loses information"

What gives? I had zero issues in 4.6.2. Many thanks.

 

Any ideas?

 

I would like to know an answer to this also, we're seeing this error too. Seems like a bug, I've created a fresh Xcode project from Unity and it still happens. IL2CPP but to just a 32-bit build does compile (not that we can submit to Apple with that ... but can at least play the game), it's the 64 bit pointer conversion that's breaking here.

I'd log a bug with Unity, but getting a repro case of my project down to a reasonable size is not an easy task ...

 

Is this a yellow warning error or red, cannot build Xcode error?

 

Red.

For example in Bulk_BouncyCastle.Crypto_12.cpp, the parts below highlighted in red give red exclamation marks in Xcode (legitimately, as far as I can see):

{

ByteU5BU5D_t12* L_0 = V_0;

V_3 = L_0;

int32_t L_1 = ((int32_t)(V_1/8));

V_4.___m_value = (void*)L_1;

NullCheck(V_3);

IL2CPP_ARRAY_BOUNDS_CHECK(V_3, (il2cpp_array_size_t)V_4.___m_value);

NullCheck(L_0);

IL2CPP_ARRAY_BOUNDS_CHECK(L_0, L_1);

*((uint8_t*)(uint8_t*)SZArrayLdElema(L_0, L_1)) = (uint8_t)(((uint8_t)((int32_t)((*(uint8_t*)(uint8_t*)SZArrayLdElema(V_3, (uint32_t)V_4.___m_value))|(((uint8_t)((int32_t)(1<<((int32_t)(((int32_t)(7-((int32_t)(V_1%8))))&((int32_t)31)))))))))));

}

 

Yes, these are major errors, not warnings. Xcode won't build.

 

Twistplay, just to verify, which version of Unity are you using? This is happening to me on 4.6.3, but it worked perfectly fine in 4.6.2.

 

Definitely 4.6.3

 

Thanks for the reply. Glad it's sorted out. There's a patch release roughly every week, right?

 

Hi Josh,

This unfortunately does not fix all cases in 4.6.3p2 (but I can confirm the il2cpp_array_size_t errors seem to have gone in that patch)

For example:

uint8_t L_17 = GenArrayGet2(V_24, (int32_t)V_23.___m_value_0, 0, uint8_t);;

Gives the error "Cast from pointer to smaller type 'int32_t' (aka 'int') loses information"

I'm down to about 5 such errors in our project now ...

For reference, the entire generated function looked like this:

IL_0174:

{

ByteU5B0___U2C0___U5D_t2520* L_15 = V_4;

V_24 = L_15;

int32_t L_16 = V_11;

V_23.___m_value_0 = (void*)L_16;

NullCheck(V_24);

uint8_t L_17 = GenArrayGet2(V_24, (int32_t)V_23.___m_value_0, 0, uint8_t);;

IL2CPP_RUNTIME_CLASS_INIT(InitializedTypeInfo(&RijndaelEngine_t2508_il2cpp_TypeInfo));

NullCheck(V_4);

uint8_t L_18 = GenArrayGet2(V_4, ((int32_t)(((int32_t)(V_11+1))%4)), ((int32_t)(V_0-1)), uint8_t);;

NullCheck((((RijndaelEngine_t2508_StaticFields*)InitializedTypeInfo(&RijndaelEngine_t2508_il2cpp_TypeInfo)->static_fields)->___S_4));

IL2CPP_ARRAY_BOUNDS_CHECK((((RijndaelEngine_t2508_StaticFields*)InitializedTypeInfo(&RijndaelEngine_t2508_il2cpp_TypeInfo)->static_fields)->___S_4), ((int32_t)((int32_t)L_18&(int32_t)((int32_t)255))));

int32_t L_19 = ((int32_t)((int32_t)L_18&(int32_t)((int32_t)255)));

NullCheck(L_15);

GenArraySet2(L_15, L_16, 0, (((uint8_t)((int32_t)((int32_t)L_17^(int32_t)(*(uint8_t*)(uint8_t*)SZArrayLdElema((((RijndaelEngine_t2508_StaticFields*)InitializedTypeInfo(&RijndaelEngine_t2508_il2cpp_TypeInfo)->static_fields)->___S_4), L_19)))))), uint8_t);;

V_11 = ((int32_t)(V_11+1));

}​

In Bulk_BouncyCastle.Crypto_7.cpp


Adrian

 

Hello Josh,

I have upgraded to 4.6.6p4 (from 4.6.2) and when I build my project in Xcode I'm getting similar issues.
"Member reference base type 'intptr_t' (aka 'long') is not a structure or union"

32bit build is working fine here.

I attaching the screenshot of the error.

What is the work around for this issue?
Thanks

 

I am stuck on this issues from last two weeks. latest 4.6.7 is also giving me the same error. anyone can help me on this?

 

I have not reported this issue. I am reporting it now. Thank you.

 

Hello Josh,
I have reported the bug report number:-
"(Case 709995) We have created 32 bit using Unity 4.6.2 and to now we want to 64bit iOS build. We are getting this issue while compiling in it."

Many Thanks.

 

Hello Josh,

Did you got time to look into this?

 

Ok thank you

 

I shared some source code with you, for which you asked for. Case 711755. Please have look whenever you get time.

 

Thank you very much! I hope this will get resolved or you can guide me with alternative solution for this.

 

When I upgrade Xcode to 7.3, it appears this problem,Please have look whenever you get time.

 

Thanks，i got it,

 

I'm getting similar errors running Unity 5.4b25 with Xcode 7.3.1 (see attached image)

 

Here's the offending code:

Code (csharp):

1.  
2.     public static string ExpandToString<T>(this IList<T> source, string delimiter = ",") where T : IComparable
3.     {
4.         StringBuilder stringBuilder = new StringBuilder();
5.  
6.         stringBuilder.AppendFormat("[List<{0}>({1}):{{", typeof(T).Name, source.Count);
7.  
8.         if(source.Count > 0)
9.         {
10.             for(int i = 0; i < source.Count; i++)
11.             {
12.                 T t = source[i];
13.                 stringBuilder.AppendFormat("{0}{1}", t, i == (source.Count - 1) ? "" : ",");
14.             }
15.         }
16.  
17.         stringBuilder.Append("}]");
18.  
19.         return stringBuilder.ToString();
20.     }
21.  

 

If I try and patch up those calls to cast to intptr_t first, then the IL2CPP crashes at runtime inside the call to StringBuilder.AppendFormat