[RTEMS Project] #4946: malloc_info() changes the state of the heap

[RTEMS trac]

#4946: malloc_info() changes the state of the heap
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 Reporter:  Chris Johns           |       Owner:  (none)
     Type:  defect                |      Status:  new
 Priority:  normal                |   Milestone:  Indefinite
Component:  score                 |     Version:  7
 Severity:  normal                |  Resolution:
 Keywords:  soc executive medium  |  Blocked By:
 Blocking:                        |
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Description changed by Gedare Bloom:

Old description:

> == Mentors ==
> * Chris Johns
> * Gedare Bloom
>
> == Skills ==
> This is primarily a C programming project.
>
> == Description ==
>
> The call `malloc_info()` is useful when looking to heap issues when some
> allocations are not right. I have found this call changes the state of
> the heap. I am not sure what is happening but I think a call like this
> should not effect the state of the heap and only report it.
>
> The documentation for this call, specification of the requirements, and
> any related documentation around it should be updated when this call
> becomes side-effect free.
>
> This project could potentially be combined with other projects related to
> memory allocators.

New description:

 == Mentors ==
 * Chris Johns
 * Gedare Bloom

 == Skills ==
 This is primarily a C programming project.

 == Expected Outcome ==

 The `malloc_info` function is made to be side-effect free with respect to
 the C program heap.

 == Description ==

 The call `malloc_info()` is useful when looking to heap issues when some
 allocations are not right. I have found this call changes the state of the
 heap. I am not sure what is happening but I think a call like this should
 not effect the state of the heap and only report it.

 The documentation for this call, specification of the requirements, and
 any related documentation around it should be updated when this call
 becomes side-effect free.

 This project could potentially be combined with other projects related to
 memory allocators.

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Ticket URL: <http://devel.rtems.org/ticket/4946#comment:15>
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