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Fix memory corruption when trying to get "core show locks".

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Review https://reviewboard.asterisk.org/r/2580/ tried to fix the mismatch
in memory pools but had a math error determining the buffer size and
didn't address other similar memory pool mismatches.

* Effectively reverted the previous patch to go in the same direction as
trunk for the returned memory pool of ast_bt_get_symbols().

* Fixed memory leak in ast_bt_get_symbols() when BETTER_BACKTRACES is
defined.

* Fixed some formatting in ast_bt_get_symbols().

* Fixed sig_pri.c freeing memory allocated by libpri when MALLOC_DEBUG is
enabled.

* Fixed __dump_backtrace() freeing memory from ast_bt_get_symbols() when
MALLOC_DEBUG is enabled.

* Moved __dump_backtrace() because of compile issues with the utils
directory.

(closes issue ASTERISK-22221)
Reported by: Matt Jordan

Review: https://reviewboard.asterisk.org/r/2778/
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Merged revisions 397525 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 397528 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@397570 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2013-08-23 18:07:40 +00:00
parent 32a0567c46
commit 46b9e5450f
11 changed files with 97 additions and 72 deletions
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2
include/asterisk/backtrace.h
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@@ -87,7 +87,7 @@ void *__ast_bt_destroy(struct ast_bt *bt);
* \param addresses A list of addresses, such as the ->addresses structure element of struct ast_bt.
* \param num_frames Number of addresses in the addresses list
* \retval NULL Unable to allocate memory
* \return List of strings. This should be freed with a single call to free.
* \return List of strings. Free the entire list with a single ast_std_free call.
* \since 1.6.2.16
*/
char **__ast_bt_get_symbols(void **addresses, size_t num_frames);