This guide explains how to set hardware watchpoints in GDB to monitor specific memory addresses, demonstrates the technique with a simple C++ program that modifies a variable via a thread, and shows how GDB reports the exact location and values of the change.
This guide explains why memory bugs are hard to locate in C/C++ programs, introduces GDB watchpoints as a way to monitor specific memory addresses, and walks through a complete example—including source code, compilation, breakpoint setting, watchpoint creation, and interpreting the hardware watchpoint output—to pinpoint the exact line that modifies a variable.
This guide explains how to use GDB watchpoints to monitor specific memory addresses, detect unexpected modifications caused by bugs such as wild pointers or multithreaded writes, and pinpoint the exact code responsible, illustrated with a C++ example that spawns a thread modifying a variable.
This article explains how to set hardware and software watchpoints in GDB to monitor specific memory addresses, demonstrates the technique with a multithreaded C++ example, and describes the underlying CPU debug registers that enable precise detection of reads and writes.
This article explains how to use GDB watchpoints to monitor specific memory locations in C/C++ programs, demonstrates setting hardware watchpoints, shows example code with a thread modifying a variable, and details the underlying CPU debug registers that enable real‑time detection of memory reads and writes.
