OP is posted the solution along with the question itself. But I feel it would be better to add it as an answer. In Xcode 5.1 apple made significant changes to the architecture section. They made arm64 as part of Standard architectures. That means the projects using the default setting will be automatically build for … Read more
Found an explanation: 64-bit Android can use 32-bit native libraries as a fallback, only if System.loadlLibrary() can’t find anything better in the default search path. You get an UnsatisfiedLinkError if you force the system to load the 32-bit library using System.load() with the full library path. So the first workaround is using System.loadLibrary() instead of … Read more
I updated the dll calls to use LongPtr everywhere instead of Long. You should have not done that. By adding PtrSafe to a function declaration, you promise to the compiler that you have put LongPtr in all places where it needs to be, and nowhere else. LongPtr is a pointer-sized integer. It must be used … Read more
On 64-bit Windows 64-bit processes can not use 32-bit DLLs and 32-bit processes can’t use 64-bit DLLs. Microsoft has documented this: On 64-bit Windows, a 64-bit process cannot load a 32-bit dynamic-link library (DLL). Additionally, a 32-bit process cannot load a 64-bit DLL. You would need a 32-bit process that communicates with the 32-bit DLL … Read more
By default the {sys} (system32) is redirected to {win}\SysWOW64 by the OS for 32-bit applications (like Inno Setup). If your DLL (or rather the application) is 32-bit, you actually want the redirection. The SysWOW64 is the System32 equivalent for Windows 32-bit emulation on Windows 64-bit. See also Inno Setup install to SysWOW64 in 32Bit mode. … Read more
Yes rounding errors, and it is effectively NOT the same hardware. The 32 bit version is targeting a different set of instructions and register sizes.
All the issues I had, that were giving Undefined symbols for architecture x86_64 were due to the fact that some libraries were compiled with libstdc++ and could not be used for code that is compiled/linked with libc++ libc++ is in fact the default new library used by clang since Mavericks, however it is possible to … Read more
You didn’t say exactly what the problem you’re seeing is, but I’m guessing that you’re crashing at the point of the call to printf. This is because OS X (both 32- and 64-bit) requires that the stack pointer have 16-byte alignment at the point of any external function call. The stack pointer was 16-byte aligned … Read more
I am now launching the “Touch Keyboard” as opposed to the “On-Screen Keyboard” (which is the keyboard I wanted on Windows 8 anyway) with: string progFiles = @”C:\Program Files\Common Files\Microsoft Shared\ink”; string keyboardPath = Path.Combine(progFiles, “TabTip.exe”); this.keyboardProc = Process.Start(keyboardPath); This works on my Win7 and Win8, regardless of my 32-bit app on 64-bit OS. However, … Read more
The reason to align a data value of size 2^N on a boundary of 2^N is to avoid the possibility that the value will be split across a cache line boundary. The x86-32 processor can fetch a double from any word boundary (8 byte aligned or not) in at most two, 32-bit memory reads. But … Read more