SPO-Project concepts and tools.(Part 1)

Through the next couple of days, I will publish a series of blogs about different tools and concepts that will be useful for me to implement the final project of my SPO600 course. In this blog I will talk about GCC and how does it work.

GCC Compiler:

GCC stands for GNU Compiler Collection which is an optimizing compiler and it is a product of GNU project. It supports various programming languages, hardware architectures and operating systems. It is a key component in the GNU toolchain. Most of the projects related to GNU and the Linux kernel uses GCC as their compiler. This has been made available as a free software.

 

GCC working pr­inciple:

GCC is a toolchain which compiles and links code with any of the library dependencies and then converts that code to assembly language. After that it prepares executable files from it. GCC follows the standard UNIX design mechanism which uses simple tools to perform individual tasks well. When we run GCC with a source code file, at first it uses a preprocessor to add a header files and discard comments. After that is tokenizes the code, expands macros and detects any compile time issues. Then it prepares the code for compilation which then converted into an assembly code. The assembler then convert this code to a format which the system understands which is called binary executable format. The final product is appeared as an executable format for the respective system.

 

GCC features:

1. Strong focus was given on portability while GCC was written in C. Besides it can compile itself. Therefore it can be adapted to any new systems.

2. Having a modular design, GCC allows support for new languages and architectures that are need to be added.

3. GCC uses the recent feature libgccjit which enables the use of “GCC as a library”.

4. It can control various optimization settings using the command line option –param

5. As GCC is a free software, everyone has the freedom of using and modifying it according to their work.

Comments

Post a Comment

Popular posts from this blog

Naziur Rahman khan Fall 2022 SPO600 Project (Algorithm-part1)

  Implementation of ifunc-capable Software in Python. Python interpreter has a great module called ifunc, which provides multi-threaded, compile-time function selection. It replaces some built-in functions with custom implementations at compile time. This allows the replacement function to specialize on a particular type or set of types. ifunc is implemented as an extension to the CPython interpreter and can be used with any language that can be compiled into Python bytecode, like Cython and PyPy. This blog post will show how useful it is to use ifunc-capable software in Python. We will also give some examples of code that uses ifunc. Plan for the project This project aims to develop an understanding of the implementation of ifunc-capable software in Python. If you're a Python programmer, then you know that ifunc is a powerful tool that can be used to great effect in your programs. However, implementing ifunc can be tricky, and it often needs to be clarified how to get starte...
Read more

SPO600-Lab 2 (Continued)

Image
 Experiments: Now I will perform some additional experiments which was asked for the lab. First I will add a instruction tya in the loop of the code. See the output below that I got from it. Here instruction tya means transfer y to a. Here I can see 11 colors on the display.  Now I was told to add instruction lsr after tya as like 'tya:lsr' . Let's see the output on the below screenshot: Experimenting with the emulator helping me gradually to adapt with this language. I will continue my experiments and post more blogs of these later.
Read more

SPO-600 64-bit Assembly Language Lab4-part1

 In this lab we are asked to work with two machine, one of which is built on aarch64 and the other one is built on x86_64 architecture. I was asked to work and explore with different existing assembly programs.  At first, I extract the required file tree from both the machine. After that I explore the different directory codes and compare them with their "objdump -d objectfile" outputs. After that I tested two codes for two different architecture whose purpose was same. It took number 10 as the counter value and showed an output that amount of time using a loop.  You can see the screenshots of those experiments here .  
Read more