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176. Compiling is the act of turning source code into object code. Linking is the act of combining object code with libraries into a raw executable. Building is the sequence composed of compiling and linking, with possibly other tasks such as installer creation. Many compilers handle the linking step automatically after compiling source code.
make the data segment of elf file marked as executable (need to hack deeply inside ld scripts - default is in ld --verbose) make all pages including .data and the heap executable (not just the stack) with ld or gcc -z execstack. move shellcode to text data of elf file. try to disable nx/xd bit in kernel (hard; recompilation may be needed) use ...
The idea is simple: You write the program, then hand it to the compiler which translates it. Then you run the result. Interpreters. An interpreter is also a program that translates a high-level language into a low-level one, but it does it at the moment the program is run. You write the program using a text editor or something similar, and then ...
The executable file you see is Microsofts PE (Portable Executable) format. It is essentially a container, which holds some operating system specific data about a program and the program data itself split into several sections. For example code, resources, static data are stored in seperate sections. The format of the section depends on what is ...
MSDN has an article "An In-Depth Look into the Win32 Portable Executable File Format" that describes the structure of an executable file. Basically, a .exe contains several blobs of data and instructions on how they should be loaded into memory. Some of these sections happen to contain machine code that can be executed (other sections contain ...
I realize this is an ancient question but I just now found it. I wrote signed executable support for the Linux kernel (around version 2.4.3) a while back, and had the entire toolchain in place for signing executables, checking the signatures at execve(2) time, caching the signature validation information (clearing the validation when the file was opened for writing or otherwise modified ...
“In computer programming, a callback is a reference to executable code, or a piece of executable code, that is passed as an argument to other code. This allows a lower-level software layer to call a subroutine (or function) defined in a higher-level layer.” - Wikipedia. Callback in C using Function Pointer
Just right-click on your project folder (in Eclipse) and select Export. Then select Java → Runnable JAR. You will be asked to choose the location of the JAR file. Finally, select the class that has the Main method that you want to run and choose *Package dependencies with the JAR file and click Finish.
Note that an interpreter itself is an executable program that is written and compiled for a specific platform. An advantage of compiled code is that it hides the source code from the end user (which might be intellectual property) because instead of deploying the original human-readable source code, you deploy an obscure binary executable file.
This is a variant of machine code, with a difference that the jumps are sort of parameterized such that a linker can fill them in. An assembler is used to convert assembly code into machine code (object code) A linker links several object (and library) files to generate an executable. I have once written an assembler program in pure hex (no ...