Debug Malloc (Dmalloc) Library Release Notes

Overview

Some changes here to improve the pthread workings and lower the incidence of recursive behavior. Various other lower level changes.

New Functionality

• The library should handle pthreaded applications better. Especially under Freebsd. More attention was spent to handling initialization recursive problems. More work needs to be spent in this area.

Dmalloc Utility Changes

None.

Changes to the settings.dist File

None.

Programming Notes

• Removed support for the PTHREAD_MUTEX_INITIALIZER define. It turns out that this only delayed the mutex initialization process until the lock was called increasing the recursive nature of dmalloc under pthreads.

• Finally removed all of the gross unions in chunk_loc.h. Thanks much to Randell Jesup's patches which I sat on forever. He also added flags for the dblock entries which makes detecting of small block allocations status more deterministic.

Environmental Variable Changes

None.

Bugs Fixed

None.