---
name: "nccgen"
section: "1"
platform: "linux"
package: "ncc"
version: "2.8-2.1+b1"
release: "Debian 10 (Buster)"
platforms: ["linux"]
url: "https://new.carta.tech/nccgen"
---

# nccgen(1)

source code analysis

## NAME

nccgen - source code analysis

## SYNOPSIS

nccgen *file.c*

## DESCRIPTION

**nccgen** is a program that can help you hack/study the source code of C programs. It will report which functions call which other functions, which functions are called by other functions and what global variables and members of structures are used by functions. This is useful if you want to analyse a program and eventually hack it.

## USAGE

To use **nccgen** find the  **Makefile** of the program you want to analyse. In the **Makefile** locate  the line which sets the C compiler. That is usually something like **CC = gcc** and you must change it to **CC = nccgen -ncgcc -ncld -ncfabs.** Then compile the application. It may be useful to also replace **AR = ar** with **AR = nccar** and **LD = ld** with **LD = nccld** to link nccout object files.

## OUTPUT

**nccgen** will produce a file with **nccout** extension for every C file analysed. Then you can use the viewer **nccnav** (with  **nccnav program.nccout** ) to view this data and do your work. If the procedure of make links object files with "ar" or "ld" you should manually link the produced **.nccout** files.

## AUTHORS

The homepage of the ncc project is: http://students.ceid.upatras.gr/~sxanth/ncc/

## SEE ALSO

The documentation included in the package.