Interfacing with C/C++

Let me take advantage of the topic of this chapter and say it once. Enough of the Assembly, let's do some C (for those willing to link Assembly code to C++, this C example should be easy to understand; if not--this is the wrong book). For the sake of an example, we will generate an object file out of our Assembly sources and link it with the code written in C for both 32-bit and 64-bit Windows and Linux.

Static linking - Visual Studio 2017

First of all, let's see how we generate an object file. I am quite sure you have already understood how to produce different targets in general and for this example in particular. Let's begin with a 32-bit MSCOFF object file by setting the ACTIVE_TARGET variable to TARGET_W32_OBJ and compiling the main source file.

Create a C/C++ project in Visual Studio and copy the object file into the project directory as shown in the following screenshot (the screenshot shows object files for both 32-bit and 64-bit):

As you can see in the preceding...