Mastering Assembly Programming

Object file

Just as with the object file source code for Windows, as always we will begin by telling the assembler what kind of output we are expecting, which procedures are public, and which are external:

format ELF; As we want GCC to take care of all the startup code; we will call our procedure "main" instead of _start,; otherwise we would be using LD instead of GCC and ; would have to specify all runtime libraries manually.public main; The following function is linked from libcextrn printf; And this one is from our crypto libraryextrn GetPointers

Then we proceed with convenience macro definition, and the suggestion is to put convenience macros into a separate include file so that they may be painlessly used with different code without ...