A debugging heap for tracking down memory errors like use-after-free and double frees across Windows, Mac, and Linux.
ig-debugheap is a debugging heap implementation written in C that helps developers track down memory errors in their applications. It detects common issues like use-after-free, double frees, array indexing errors, and unsynchronized multi-threaded access by intentionally causing crashes when these errors occur. The tool is designed to be particularly useful on Windows where alternatives like Valgrind are unavailable.
C and C++ developers working on cross-platform applications who need to debug memory errors, especially those developing on Windows systems without access to Valgrind.
Developers choose ig-debugheap because it provides a simple, cross-platform solution for detecting elusive memory errors that can crash applications. Its ability to dynamically switch to debug mode without recompilation makes it convenient for hunting bugs in production-like environments.
Debug heap useful for tracking down memory errors.
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Allocates memory aligned to inaccessible virtual memory pages, causing crashes on positive array indexing errors to catch buffer overflows directly.
Keeps freed blocks on an observation list to trigger crashes when accessed after being freed, increasing the likelihood of catching this elusive error.
Detects double free attempts and unsynchronized multi-threaded access, helping identify memory corruption and race conditions in concurrent code.
Can be integrated as a heap interface that switches to debug mode via configuration without recompilation, enabling flexible debugging in various environments.
Works on Mac, Linux, and Windows, providing a valuable memory debugging solution especially on Windows where tools like Valgrind are unavailable.
Intentionally slow and memory-intensive, as stated in the README, making it impractical for any use beyond debugging sessions.
Detects use-after-free and double frees 'most of the time,' not guaranteed, which could lead to missed bugs in some cases.
Requires setting up a custom heap interface and potentially modifying application code, which can be cumbersome for large or legacy projects.