integrating malloc_debug

[mmadia]

​This haiku-development ML thread mentions integrating src/system/libroot/posix/malloc_debug and possibly making it available as a runtime setting. This which will allow it to be enabled and configured dynamically.

For now, malloc_debug can be enabled by switching over the malloc to the malloc_debug directory in the src/system/libroot/posix/Jamfile and rebuilding libroot. It can also do leak checking and does initialize and overwrite freed memory with known values to make access to these more obvious.

[mmlr]

Ingo has since added libroot_debug.so which can be used using LD_PRELOAD. To use malloc_debug the app needs to be run like this:

~> LD_PRELOAD="libroot_debug.so" /path/to/app

I find that a pretty elegant solution which avoids any messing with the normal libroot. So this can be considered "fixed".