Debug Malloc (Dmalloc) Library Release Notes

Version: Release 5.2.0
Last-Version: 5.1.0
Date: June 10, 2003

Overview    New Functionality    Dmalloc Utility    settings.dist    Installation    Programming    Environmental Variables    Bugs Fixed

Overview

Quick feature release to fold in a couple of changes in the last couple of days. Added the ability to put %p, %t, and other % strings in the logfile path and have then be expanded to getpid() and time() output respectively. More documentation online.

New Functionality

• Added new expansion of the -l --logfile environment setting. %h expands to the output of gethostname(), %p to getpid(), %t to time(), %u to getuid(), and %i to the thread-id, if configured. So you can, for example, use dmalloc -l log.%u.%t and get logfiles in the form of: log.1001.1055273186 where 1001 is your user-id (under Unix) and 1055273186 is the time in seconds.

  NOTE: You must install the 5.2.0 version of the dmalloc utility for this to work.

• Added LOG_PID to the settings.dist config file. Set to 1 to have dmalloc log the PID on each line of the logfile.

• Added LOG_REOPEN to the settings.dist config file. If set to 1 (the default) it will reopen the logfile if the process-id changes. This will happen when the process forks. The log will only be reopened if the %p string is in the logpath otherwise the reopened logfile might overwrite the initial one.

  NOTE: I removed the old logfile % processing. %d no long expands to the process id.

• Improved the dmalloc_log_stats, dmalloc_log_unfreed, and dmalloc_log_changed output.

Dmalloc Utility Changes

• The -l --logfile argument now takes special % strings. See above.

Changes to the settings.dist File

• Added LOG_PID setting. See above.
• Added LOG_REOPEN setting. See above.
• Renamed LOG_ITERATION_COUNT to LOG_ITERATION.
• Renamed STORE_SEEN_COUNT to LOG_PNT_SEEN_COUNT.
• Renamed STORE_ITERATION_COUNT to LOG_PNT_ITERATION.
• Renamed STORE_TIME to LOG_PNT_TIME.
• Renamed STORE_TIMEVAL to LOG_PNT_TIMEVAL.
• Renamed LOG_THREAD_ID to LOG_PNT_THREAD_ID.

Installation Changes

None.

Programming Notes

None.

Environmental Variable Changes

• The log=... setting now takes special % strings. See above.

Bugs Fixed

• Fixed a problem with the global Makefile and dmalloc_t where some architectures would pick up the old shared libraries while building the new test program.

Dmalloc Home Page. Copyright 2003 Gray Watson.