drmemory v2.6 releases: Memory Debugger for Windows, Linux, Mac, and Android

by do son · Published July 13, 2019 · Updated September 22, 2023

Dr. Memory: the memory debugger

Dr. Memory is a memory monitoring tool capable of identifying memory-related programming errors such as accesses of uninitialized memory, accesses to unaddressable memory (including outside of allocated heap units and heap underflow and overflow), accesses to freed memory, double frees, memory leaks, and (on Windows) handle leaks, GDI API usage errors, and accesses to un-reserved thread-local storage slots.

Dr. Memory operates on unmodified application binaries running on Windows, Linux, Mac, or Android on commodity IA-32, AMD64, and ARM hardware.

Dr. Memory has support for running within the Visual Studio IDE as an External Tool. The Windows installer automatically creates a new Tools menu entry for launching Dr. Memory for each version of Visual Studio detected at install time. If you are using a local install, or if you installed Visual Studio after installing Dr. Memory, or if you are using Visual Studio Express 2010 and it was in Basic mode at the time you installed Dr. Memory, you will need to follow the following instructions in order to add Dr. Memory as an External Tool.

Dr. Memory provides a fuzz testing mode that repeatedly executes one function in the target application, mutating the value of one argument before each iteration. Fuzz mode is configured using a set of runtime options that all share a -fuzz_ prefix. For example, -fuzz_function specifies the function name for fuzzing. The aggregate runtime option -fuzz_target can also be used to configure the fuzz target. An overview of each option and descriptor format is provided in the Dr. Memory Runtime Option Reference (and the command line help text). Many of these options require a more complete explanation, which is provided in the following sections.