[Savannah-register-public] [task #4856] Submission of spmalloc - Stephan Peijnik's malloc

[Stephan Peijnik]

URL:
  <http://savannah.nongnu.org/task/?func=detailitem&item_id=4856>

                 Summary: Submission of spmalloc - Stephan Peijnik's malloc
                 Project: Savannah Administration
            Submitted by: speijnik
            Submitted on: Thu 10/20/05 at 17:21
         Should Start On: Thu 10/20/05 at 00:00
   Should be Finished on: Sun 10/30/05 at 00:00
                Category: Project Approval
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Percent Complete: 0%
             Open/Closed: Open
                  Effort: 0.00

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Details:

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######### REGISTRATION DETAILS ######### 

Full Name:
----------
  spmalloc - Stephan Peijnik's malloc

System Group Name:
-----------------
  spmalloc

Type:
-----
  non-GNU software &amp; documentation

License:
-------- 
  GNU General Public License V2 or later

Description:
------------
  spmalloc is aimed at providing per-module memory statistics for programs
that use modules (dynamically linkable objects) for extending their
features.

This is achieved by having an array of a structure containing pointers,
memory sizes and the allocator module's base address.
Getting the pointer and the size of the memory chunk isn't that much of a
problem but getting a module's base address requires combining a gcc-internal
call and dladdr().
As the sentence above already suggests the code is specific to GNU/Linux 
and/or gcc. It may work on other OS' like the various BSD flavours but that
has not been tested yet.
It also adds some sanity checking to calls to its memory management functions
immediatly abort()'ing the program on any error. This is done for several
reasons. The two most important ones would be saving the user from data
corruption (ie. when writing to a file) and helping developers to find bugs
as free'ing an already free'd memory chunk will for example result in an
abort().

However, it does not replace the system's memory manegement functions at all
and indeed makes use of those itself.

The code is not a stand-alone library (but might be made one later on) but is
meant to be compiled into any project using it.

The source code may be obtained from http://www.sp.or.at/spmalloc/ which
contains a link to a tar-gz archive.









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