Debuggers

Overview

Debuggers and profiling tools are essential for identifying logical errors, memory leaks, and performance bottlenecks within a program. This collection covers tools used for low-level inspection and runtime analysis.

1. Core Debugging

Tools used to stop execution, inspect state, and trace code execution line-by-line.

• GNU Debugger (GDB): The standard portable debugger for Unix-like systems. It allows you to see what is going on inside a program while it executes or what it was doing at the moment it crashed.
• Key uses:
  • Breakpoints
  • backtracing
  • variable inspection.

2. Memory Analysis

Tools focused on the management and safety of system memory.

• Valgrind: An instrumentation framework for building dynamic analysis tools. It is primarily used for detecting memory-related bugs.
• Key uses:
  • Detecting memory leaks (memcheck)
  • use-after-free errors
  • uninitialized memory access

3. Performance Profiling

Tools used to analyze program execution time and identify “hotspots” where the code is slow.

• GPROF: A hybrid instrumentation/sampling profiler for Unix programs.
• Key uses:
  • Analyzing call graphs
  • Determining which functions are consuming the most CPU time to guide optimization.