Merged revisions 376049 via svnmerge from

Merged revisions 376049 via svnmerge from
file:///srv/subversion/repos/asterisk/trunk

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  r376049 | rmudgett | 2012-11-08 11:38:31 -0600 (Thu, 08 Nov 2012) | 41 lines

  Add MALLOC_DEBUG enhancements.

  * Makes malloc() behave like calloc().  It will return a memory block
  filled with 0x55.  A nonzero value.

  * Makes free() fill the released memory block and boundary fence's with
  0xdeaddead.  Any pointer use after free is going to have a pointer
  pointing to 0xdeaddead.  The 0xdeaddead pointer is usually an invalid
  memory address so a crash is expected.

  * Puts the freed memory block into a circular array so it is not reused
  immediately.

  * When the circular array rotates out a memory block to the heap it checks
  that the memory has not been altered from 0xdeaddead.

  * Made the astmm_log message wording better.

  * Made crash if the DO_CRASH menuselect option is enabled and something is
  found.

  * Fixed a potential alignment issue on 64 bit systems.
  struct ast_region.data[] should now be aligned correctly for all
  platforms.

  * Extracted region_check_fences() from __ast_free_region() and
  handle_memory_show().

  * Updated handle_memory_show() CLI usage help.

  Review: https://reviewboard.asterisk.org/r/2182/
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  Merged revisions 376029 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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  Merged revisions 376030 from http://svn.asterisk.org/svn/asterisk/branches/10
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  Merged revisions 376048 from http://svn.asterisk.org/svn/asterisk/branches/11
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git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@376054 65c4cc65-6c06-0410-ace0-fbb531ad65f3