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shlib_debug_enable(5)					 shlib_debug_enable(5)

NAME
       shlib_debug_enable  -  dynamically  enable  or  disable	online	shared
       library debugging support

VALUES
   Fail Safe
   Default
       semantics is disabled

   Allowed values
DESCRIPTION
       This tunable dynamically enables (1) or disables (0) the online	shared
       library	debugging  feature.   When  this  tunable  is  enabled, shared
       libraries of a running (active) application can be debugged.

   Who Is Expected to Change This Tunable?
       System administrators and developers who want  to  change  the  default
       behavior of

   Restrictions on Changing
       Changes	to  this tunable take effect immediately.  There is no need to
       reboot the system.

   When Should the Tunable Be Turned On?
       When there is a need to debug a shared library of  a  running  (active)
       application, this tunable can be turned on.

       When this feature/tunable is not enabled, debugging of shared libraries
       can be done  at	application  start  time  through  the	command.   See
       chatr(1).

   What Are the Side Effects of Turning the Tunable On?
       If  an  application which is being debugged for shared libraries is not
       MPAS (Mostly Private Address Space) executable,	then  the  application
       will  be	 converted  to an MPAS executable type.	 After the conversion,
       all rules which apply to regular MPAS executable type does apply to the
       converted  application  until  the process exits.  The rules apply even
       after being detached from the debugger.

   When Should the Tunable Be Turned Off?
       Administrators and/or developers who will not need the online debugging
       feature of shared libraries.

   What Are the Side Effects of Turning the Tunable Off?
       When  this  tunable  is	disabled,  then	 online	 debugging  of	shared
       libraries will not be possible beyond the existing hardware break point
       facility.   With hardware break points, only a limited number of break‐
       points can be set.

   What Other Tunables Should Be Changed at the Same Time?
       None.

WARNINGS
       All HP-UX kernel tunable parameters are release specific.  This parame‐
       ter  may	 be  removed or have its meaning changed in future releases of
       HP-UX.

       Installation of optional kernel software, from HP or other vendors, may
       cause  changes  to  tunable parameter values.  After installation, some
       tunable parameters may no longer be at the default or recommended  val‐
       ues.  For information about the effects of installation on tunable val‐
       ues, consult the documentation for the kernel software being installed.
       For  information	 about	optional  kernel  software  that  was  factory
       installed on your system, see at

AUTHOR
       was developed by HP.

SEE ALSO
       chatr(1).

HP Integrity Systems Only  Tunable Kernel Parameters	 shlib_debug_enable(5)

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