Our flagship product Resource Standard Metrics for C/C++, Java and C# generates source code metrics. Source code quality metrics and complexity are measured by this tool from the written source code yielding actual measures of your team's performance. Source code metric differentials can be determined between baselines using RSM code differential work files. Source code metrics (SLOC, KSLOC, LLOC) from this tool can provide line of code derived function point metrics. RSM has been adopted as a corporate standard metrics tool for many Fortune 100 software companies for compliance to ISO9001, CMMI and AS9100. You will find RSM the best software source code metrics tool where one inexpensive tool does it all.

Valgrind is an award-winning suite of tools for debugging and profiling Linux programs. With the tools that come with Valgrind, you can automatically detect many memory management and threading bugs, avoiding hours of frustrating bug-hunting, making your programs more stable. You can also perform detailed profiling, to speed up and reduce memory use of your programs.

The Valgrind distribution currently includes four tools: a memory error detector, a cache (time) profiler, a call-graph profiler, and a heap (space) profiler. It runs on the following platforms: X86/Linux, AMD64/Linux, PPC32/Linux, PPC64/Linux.

Valgrind is Open Source / Free Software, and is freely available under the GNU General Public License.

gcov is a tool you can use in conjunction with GCC to test code coverage in your programs.

This manual describes the GNU profiler, gprof, and how you can use it to determine which parts of a program are taking most of the execution time. We assume that you know how to write, compile, and execute programs.

- CodeAnalyzer (simple but acuarcy) 
- CCCC (object oriented metrics) 
- CodeCounter (counts different) 
- Kaylo (count mistakes will be fixed) 
- SLOC Counter (counts different) 
- source code LineCounter (not tested) 
- SourceMeter (Java...) 
- StoffelLOC (for Java) 
- jSMEG (for Java) 
- OpenCount 

An introduction to the GNU debugger

Customizing the debugger

GNU DDD is a graphical front-end for command-line debuggers such as GDB, DBX, WDB, Ladebug, JDB, XDB, the Perl debugger, the bash debugger, or the Python debugger. Besides ``usual'' front-end features such as viewing source texts, DDD has become famous through its interactive graphical data display, where data structures are displayed as graphs.

GPS, the GNAT Programming Studio, is a cutting-edge Free Software IDE that streamlines the interaction between developers and their software. With its intuitive interface, GPS is easy to use, simplifying source navigation and highlighting the fundamental ideas in the program.

By displaying core application structures, such as call graphs, program entity graphs, and project dependencies, GPS facilitates the development of systems. GPS helps construct reliable code while providing the same interface and behavior across a variety of platforms. Designed by programmers for programmers, GPS is a new kind of IDE that offers the experience of designing software in a uniquely comfortable environment.

google-coredumper

A neat tool for creating GDB readable coredumps from multithreaded applications

Version control for Linux

An overview of architectures, models, and examples

Version Control with Subversion, a free book about Subversion

DITrack is a free, open source, lightweight, distributed issue (bug, defect, ticket) tracking system using a Subversion repository instead of a backend database. It is written in Python and runs in UNIX environment (*BSD, Linux, MacOS X).